Quiz_Random

1. Saccharomyces is used in:

 
 
 
 

2. Common phycobiont in a lichen is :

 
 
 
 

3. Lichens show :

 
 
 
 

4. The photoreceptor found at the anterior end of Chlamydomonas is:

 
 
 
 

5. Small epidermal swellings due to infection are called :

 
 
 
 

6. All the following human diseases are caused by spirochetes except:

 
 
 
 

7. The development of Selaginella embryo is:

 
 
 
 

8. Which of the following statements is not correct?

 
 
 
 

9. Some of the species of Selaginella perennate by means of:

 
 
 
 

10. A part of pathogen that is transmitted to the host is termed as :

 
 
 
 

11. Helotism word is used for the symbiosis between :

 
 
 
 

12. All but one group are included in tracheophyta; which group is this?

 
 
 
 

13. Cycas is different from mango in :

 
 
 
 

14. Mucilaginous canals in Cycas are found in :

 
 
 
 

15. Some diseases caused by bacteria are:

 
 
 
 

16. Which of the following statement is correct?

 
 
 
 

17. Bacteria were first discovered by:

 
 
 
 

18. Fruits are not found in:

 
 
 
 

19. The zoospores of Ulothrix are :

 
 
 
 

20. Binomial system of nomenclature means that every organism has:

 
 
 
 

21. The thread-like body of Nostoc filament without mucilage sheath is called :

 
 
 
 

22. Spores of which plants have chloroplast:

 
 
 
 

23. Where are the antheridia and archegonia situated in moss?

 
 
 
 

24. The megasporangia of Selaginella can be identified due to their:

 
 
 
 

25. All the following human diseases are due to members of the genus Clostridium except:

 
 
 
 

26. Amoeba is placed in the phylum Protozoa because of:

 
 
 
 

27. The archegonia in Selaginella develop on:

 
 
 
 

28. The stem and petiole are covered with numerous brownish scale-like structures which are called:

 
 
 
 

29. Master-slave relationship between fungi and algae in the lichens is called :

 
 
 
 

30. Male gametes in Dryopteris are:

 
 
 
 

31. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

32. Green plants without root, stem and leaves, but with a simple usually filamentous plant body are called:

 
 
 
 

33. Bacteria are considered to be plants because they:

 
 
 
 

34. Haplo-diplo-haplontic type triphasic life cycle occurs in:

 
 
 
 

35. Those bacteria designated microaerophilic are distinguished by their ability to grow:

 
 
 
 

36. If the sporangia in a sorus are in different stages of development and are intermixed, this condition is called:

 
 
 
 

37. Clostridium can:

 
 
 
 

38. The common bacterium, which lives in the human intestine is:

 
 
 
 

39. The alga, Spirogyra are found in :

 
 
 
 

40. The megasporophyll of Cycas is equivalent to which part of Angiosperm?

 
 
 
 

41. The chief function of the indusium of the fern is:

 
 
 
 

42. Which plays an important role in the dispersal of spores in Funaria?

 
 
 
 

43. Dicot leaf-like reticulate venation occurs in leaves of:

 
 
 
 

44. Who discovered streptomycin?

 
 
 
 

45. The smallest known agent of a plant disease is:

 
 
 
 

46. Fruits are not found in Cycas because:

 
 
 
 

47. Coralloid roots of Cycas is distinguished from Angiosperm roots by :

 
 
 
 

48. A plant which reproduces by spores, has vascular tissue but lacks flowers should belong to:

 
 
 
 

49. A group of genera which show general structural resemblances to one another mainly in their floral organs is referred to as:

 
 
 
 

50. The Rhizopus is:

 
 
 
 

51. Which of the following have a prokaryotic cell?

 
 
 
 

52. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

53. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

54. Which of the following protein is associated with prion disease?

 
 
 
 

55. Which of the following is a beneficial activity of microorganisms?

 
 
 
 

56. In moss, calyptra is formed from:

 
 
 
 

57. The fungi that grow on wood are called:

 
 
 
 

58. The cell wall of bacteria is made-up of:

 
 
 
 

59. Which are non-seed-bearing vascular plants?

 
 
 
 

60. Which of the following does not help in penetration of pathogen into the host?

 
 
 
 

61. Which one of the following belong to cryptogams only:

 
 
 
 

62. The chief enzyme found in the yeast cell is:

 
 
 
 

63. The prothallus of fern is:

 
 
 
 

64. The mature ligule has a prominent basal portion called:

 
 
 
 

65. Which part of Riccia bears nurse cells?

 
 
 
 

66. Most common type of conjugation in Spirogyra is :

 
 
 
 

67. NBG of Lucknow is now named as:

 
 
 
 

68. Which of the following causes smut disease in cultivated plants?

 
 
 
 

69. Cyanophage is a virus that attacks:

 
 
 
 

70. The structure formed by the bacterial genome is generally called as:

 
 
 
 

71. Which are non-seed-bearing vascular plants?

 
 
 
 

72. Propagating materials like seeds, tubers, grafts and bulbs can be kept free of pathogens by :

 
 
 
 

73. In Pteris, the roots are:

 
 
 
 

74. Non-porous wood for furniture is produced by:

 
 
 
 

75. Which one of the following is an endozoic algae?

 
 
 
 

76. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

77. Which is an exception to cell theory?

 
 
 
 

78. In Pteris, the sporophytic generation begins from and ends with the formation of spore mother cells:

 
 
 
 

79. Fern prothallus produces:

 
 
 
 

80. Most of the algae are :

 
 
 
 

81. Sleeping sickness disease in man is caused by:

 
 
 
 

82. John Hutchinson divided dicots into two divisions:

 
 
 
 

83. Which of the following are included in Tracheophyta?

 
 
 
 

84. Plant body is violettish-blue or blue-green in:

 
 
 
 

85. What is absent in Deuteromycetes?

 
 
 
 

86. Which of the following is not a correct match?

 
 
 
 

87. Water bloom is generally caused by :

 
 
 
 

88. An organism that lacks plastids, even then it manufactures its own food material:

 
 
 
 

89. The heart-shaped prothallus of Dryopteris is always:

 
 
 
 

90. Photosynthetic bacteria have:

 
 
 
 

91. Which among the following is known as Father of Indian phycology?

 
 
 
 

92. Usually, bacteria reproduce by:

 
 
 
 

93. Citrus canker is caused by :

 
 
 
 

94. Which type of sexual reproduction is found in C. coccifera?

 
 
 
 

95. Protists which are diploid reproduce sexually by:

 
 
 
 

96. Which is a gametophytic tissue?

 
 
 
 

97. Who discovered heterothallism in fungi?

 
 
 
 

98. Majority of lichens are :

 
 
 
 

99. In Cycas wood most of the tissue is made up of :

 
 
 
 

100. Winged pollen grains are found in :

 
 
 
 

101. In Molecular Biology, E coli has been used in studying:

 
 
 
 

102. Diploxylic vascular bundles are found in:

 
 
 
 

103. Retting is a process, by which bacteria bring about the:

 
 
 
 

104. In which of the following, RNA is double stranded:

 
 
 
 

105. Roots are absent in :

 
 
 
 

106. A control measure prior to the appearance of a particular disease comes under :

 
 
 
 

107. TMV was isolated in crystalline form by:

 
 
 
 

108. Cycas revoluta is widely grown as :

 
 
 
 

109. Which causes red tide?

 
 
 
 

110. For the disease of red stripe of sugarcane the bacterium responsible is:

 
 
 
 

111. Which of the following is wrong for fungi? (NEET 2016)

 
 
 
 

112. Which of the following is correct regarding AIDS causative agent HIV? (NEET 2016)

 
 
 
 

113. Genera Plantarum which appeared in three volumes from 1862-1883 was written by:

 
 
 
 

114. The microsporophylls on the cone of Cycas are :

 
 
 
 

115. To which country Antony van Leeuwenhoek belong?

 
 
 
 

116. The bacteria, which are smallest in size are:

 
 
 
 

117. The site where the protein coat of virus is synthesized is:

 
 
 
 

118. In young stage sporophyte of fern absorbs food from the prothallus through:

 
 
 
 

119. Which of the lichen live as a crust over soil, rocks and branches of trees?

 
 
 
 

120. An Hfr bacterium is one that contains:

 
 
 
 

121. Pasteur is famous for his:

 
 
 
 

122. Pasteurized milk is:

 
 
 
 

123. The rhizoids of Funaria are :

 
 
 
 

124. A structure in lichen that is similar to stomata in function is :

 
 
 
 

125. In which of the following plants is the sporophyte a dominant phase in the life cycle?

 
 
 
 

126. Plasmids are:

 
 
 
 

127. Most of the members of the genus Bacillus are known for:

 
 
 
 

128. The process of transformation in bacteria does not require:

 
 
 
 

129. The mycelium of Rhizopus is:

 
 
 
 

130. Leaves of pea show white powdery patches due to the growth of fungal mycelium with conidia and conidiophores. These are the symptoms of :

 
 
 
 

131. The microsporophyll of Selaginella are the forerunners of which structure of Angiosperms?

 
 
 
 

132. Atracheata term has been used by O. Swiald Tippo for:

 
 
 
 

133. In Funaria, the leaves are arranged on the axis:

 
 
 
 

134. The total number of families of Angiosperm in Hutchinson’s classification are:

 
 
 
 

135. According to Woese, fungi were placed in the domain :

 
 
 
 

136. Which of the following is a free-living anaerobic nitrogen-fixing bacteria?

 
 
 
 

137. Severe famine of West Bengal of 1942-43 was due to destruction of rice crop by a fungus called:

 
 
 
 

138.

 

139. An alga which is rich in proteins:

 
 
 
 

140. For the archegonium of Pinus which statement is true?

 
 
 
 

141. Oswald Tippo’s classification is:

 
 
 
 

142. Vascular tissue is found in :

 
 
 
 

143. A disease is an abnormal state that may result due to:

 
 
 
 

144. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

145. Dryopteris prothallus is bisexual but the type of gametic union is generally by:

 
 
 
 

146. The sexual reproductive organs in Rhizopus are:

 
 
 
 

147. Genetic material of TMV is:

 
 
 
 

148. Borrelia burgdorferi is noted for its ability to cause:

 
 
 
 

149. Which of the following is not a fungal disease?

 
 
 
 

150. The orders generally have the uniform endings:

 
 
 
 

151. Milk is converted to curd by:

 
 
 
 

152. The species which are highly restricted in distribution are called:

 
 
 
 

153. The chloroplast in Ulothrix is :

 
 
 
 

154. It is sometimes seen that conjugation between two hyphae of Rhizopus does not take place even in most favourable conditions because:

 
 
 
 

155. Pollination in Pinus is :

 
 
 
 

156. The lichens growing on rocks are called :

 
 
 
 

157. If a sporangium is derived from a single cell it is called:

 
 
 
 

158. Sporophyte of fern is:

 
 
 
 

159. Red rot of sugarcane is caused by :

 
 
 
 

160. Vascular cryptogams is the term used for:

 
 
 
 

161. The branch of Botany under which fungi are studied is known as:

 
 
 
 

162. Sexual reproduction in Rhizopus is by:

 
 
 
 

163. Heterotrichous habit means :

 
 
 
 

164. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

165. Yeast grows more rapidly in:

 
 
 
 

166. The megasporangium of Selaginella is:

 
 
 
 

167. All archaebacteria lack:

 
 
 
 

168. Late blight of potato is caused by :

 
 
 
 

169. Which is the hydrogen donor in the bacterial photosynthesis?

 
 
 
 

170. Yeast is a source of:

 
 
 
 

171. The gametophyte of fern is as:

 
 
 
 

172. Certain bacteria are able to thrive under extreme environmental conditions such as the absence of oxygen, high salt concentration, high temperature, or highly acidic environment What are these bacteria called?

 
 
 
 

173. The plants of Funaria grow :

 
 
 
 

174. Methanogens belong to:

 
 
 
 

175. In Cycas microsporangia are borne on:

 
 
 
 

176. The life cycle of Funaria is not completed without water because of:

 
 
 
 

177. Select the wrong statement:

 
 
 
 

178. The number of neck canal cells in Cycas are:

 
 
 
 

179. Lichens are the indicator of pollution :

 
 
 
 

180. The basal-cell by which an alga is attached to its substratum is known as :

 
 
 
 

181. The stem of adult Cycas plant is covered with persistent leaf-bases which are :

 
 
 
 

182. Etiology includes the study of :

 
 
 
 

183. The central part of Funaria axis is :

 
 
 
 

184. Cycas is similar to a mustard plant :

 
 
 
 

185. Which lichen is called Reindeer moss?

 
 
 
 

186. The antheridia of fern are different from that of moss in the sense that they produce:

 
 
 
 

187. The antherozoids of Funaria are :

 
 
 
 

188. Polystelic condition is found in:

 
 
 
 

189. Which of the following is true for Selaginella?

 
 
 
 

190. Chemoautotrophic bacteria are bacteria that derive their energy from chemical reactions and:

 
 
 
 

191. Yeast belongs to class:

 
 
 
 

192. Black rust of wheat is caused by:

 
 
 
 

193. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

194. In Gymnosperms endosperm is a:

 
 
 
 

195. Nonmotile, thin-walled spores of algae are called :

 
 
 
 

196. Which one of the following statement is wrong?

 
 
 
 

197. Embryophyta includes:

 
 
 
 

198. Discovery of penicillin was based on:

 
 
 
 

199. The causal organism of early blight of potato is :

 
 
 
 

200. Asexual reproductive body of Volvox is called:

 
 
 
 

201. In Funaria :

 
 
 
 

202. In Gymnocarpeae the fruiting body is :

 
 
 
 

203. Which fixes atmospheric nitrogen?

 
 
 
 

204. The fern plant is:

 
 
 
 

205. Acetobacter is useful in:

 
 
 
 

206. Penicillin is obtained from:

 
 
 
 

207. Virion refers to:

 
 
 
 

208. Mostly type of zygospore in Ulothrix is:

 
 
 
 

209. The largest alga is:

 
 
 
 

210. Most of the biological names have been derived from:

 
 
 
 

211. Enteric bacteria are those bacteria that live:

 
 
 
 

212. Psilotum is:

 
 
 
 

213. A gill of Agaricus:

 
 
 
 

214. Prions are pathogens that are thought to consist solely of:

 
 
 
 

215. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

216. AIDS (= Acquired Immune Deficiency Syndrome) is caused by:

 
 
 
 

217. When milk or other products are heated for about half an hour at about 62°C and then cooled, the process is called:

 
 
 
 

218. Which group of plants is called “Amphibians of Plant World”?

 
 
 
 

219. A plant bears fruit, has a column of vascular bundle and a tap root system. This plant is a:

 
 
 
 

220. Which of the following is sago palm?

 
 
 
 

221. Spirogyra is commonly known by the name of ‘Pond scum’ or ‘Pond silk’ because :

 
 
 
 

222. Which of the following disease is caused by virus?

 
 
 
 

223. Club moss is the common name of :

 
 
 
 

224. Most appropriate word for protozoans is:

 
 
 
 

225. Some of the species of Selaginella are commonly called:

 
 
 
 

226.

227. Spermatophyta are characterized by producing:

 
 
 
 

228. Liverworts are included in :

 
 
 
 

229. In the two kingdom system of classification, Euglena is included in:

 
 
 
 

230. Centric discoid form of diatom is:

 
 
 
 

231. Interferon is a:

 
 
 
 

232. Nitrogen-fixing bacteria may be located:

 
 
 
 

233. Which one is the smallest organism capable of autonomous growth and reproduction?

 
 
 
 

234. RNA particle causing symptoms like that of a virus disease are known as:

 
 
 
 

235. Most primitive embryophytes are placed in :

 
 
 
 

236. Fire resistant fibres and plastic are obtained from the alginates present in the cell wall of which algae?

 
 
 
 

237. Soil fertility is lost by the activities of:

 
 
 
 

238. If a disease appears on a large scale after a long interval it is:

 
 
 
 

239. Pteridophytes as a group differ from Bryophytes and Thallophytes in having:

 
 
 
 

240. Saccharomyces ludwigii ascus produces:

 
 
 
 

241. The role of meiosis is for:

 
 
 
 

242. The protonema which is not formed from spores is known as :

 
 
 
 

243. The chloroplast of Chlamydomonas are:

 
 
 
 

244. The most common method of vegetative reproduction in yeast is:

 
 
 
 

245. Which of the following does not contain chlorophyll?

 
 
 
 

246. LSD is:

 
 
 
 

247. Sometimes a gamete of Rhizopus functions as zygospore. It is known as:

 
 
 
 

248. Bentham and Hooker placed gymnosperms:

 
 
 
 

249. Longest known virus is:

 
 
 
 

250. A diseased leaf shows some areas with dead tissue. This symptom is often referred to as :

 
 
 
 

251. Ovary is absent in:

 
 
 
 

252. In prokaryotes, the mitochondria are absent. Even then Krebs’ cycle takes place. What is the site of Krebs’ cycle in bacteria?

 
 
 
 

253. When the gametophyte is not formed by spores but by any other part of sporophyte it is known as :

 
 
 
 

254. An infectious agent associated with certain mammalian degenerative disease that is composed solely of protein, is known as:

 
 
 
 

255. Which of the following characteristics is associated with specialized transduction?

 
 
 
 

256. Pteridophyta are also called:

 
 
 
 

257. Cyanobacteria, unlike other types of bacteria that photosynthesize and:

 
 
 
 

258. Which is absent from the xylem of Cycas?

 
 
 
 

259. How a fern differs from a moss?

 
 
 
 

260. Select the correct statement: (NEET 2016)

 
 
 
 

261. Kuru, a human disease is caused by:

 
 
 
 

262. Where does meiosis occur in yeast?

 
 
 
 

263. The parasitic fungi take their nutrition from their host with the help of:

 
 
 
 

264. Funaria is :

 
 
 
 

265. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

266. Match column I with column II and select the correct option using the codes given below:

| Column I | Column II |
|——————|—————–|
| A Citric acid | (i) Trichoderma |
| B Cyclosporin A | (ii) Clostridium|
| C Statins | (iii) Aspergillus|
| D Butyric acid | (iv) Monascus |

Codes:

| | A | B | C | D |
|——|—|—|—|—|
| (a) | i | iv| ii| iii|
| (b) | iii| iv| i | ii|
| (c) | iii| i | ii| iv|
| (d) | iii| i | iv| ii|

Answer: (d) iii, i, iv, ii

Explanation: The correct matching is:
– A Citric acid – (iii) Aspergillus
– B Cyclosporin A – (i) Trichoderma
– C Statins – (iv) Monascus
– D Butyric acid – (ii) Clostridium

179 Which of the following sets of diseases is caused by bacteria?

 
 
 
 

267. Siphonogamy is found in:

 
 
 
 

268. Adaxial outgrowth from the base of the leaf of Selaginella is:

 
 
 
 

269. Black rust of wheat is caused by:

 
 
 
 

270. Bivalved siliceous shell or frustule occur in:

 
 
 
 

271. The method of reproduction in bacterium, in which a virus participates is:

 
 
 
 

272. Which is not likely to be found on sea shore?

 
 
 
 

273. Fairy ring is the name given to:

 
 
 
 

274. The young leaves of Cycas have :

 
 
 
 

275. The number of cotyledons in the embryo of Pinus are :

 
 
 
 

276. Mycoplasma contains:

 
 
 
 

277. Lichens reproduce by :

 
 
 
 

278. Which is the nuclear material in bacteria?

 
 
 
 

279. Synzoospore is produced in:

 
 
 
 

280. Reproduction in Rhizopus is:

 
 
 
 

281. Cyathia is characterized by:

 
 
 
 

282. . Tapetum develops in:

 
 
 
 

283. Wine turns sour because of:

 
 
 
 

284. Reserve food in Euglena is:

 
 
 
 

285. Azolla and Salvinia both are:

 
 
 
 

286. A plasmid found in some bacteria can integrate reversibly with the chromosome of its host and then it behaves as part of the host chromosome, multiplying with it What is this plasmid known as?

 
 
 
 

287. Atracheata term has been used by Oswald Tippo for :

 
 
 
 

288. Which class of Protozoa includes all parasitic forms?

 
 
 
 

289. The scientist who is famous for his research on rust fungi in India is :

 
 
 
 

290. A characteristic spore of Agaricus, a mushroom is known as:

 
 
 
 

291. Which part of the plant is not affected by Albugo?

 
 
 
 

292. Bacteria which are found in marshy areas and among the flora of cattle rumen are called:

 
 
 
 

293. Absorptive nutrition is:

 
 
 
 

294. Woody climbers are known as :

 
 
 
 

295. Cycas has two cotyledons but even then it is not classified as a dicot:

 
 
 
 

296. A number of short stalked sporangia attached with placenta and covered by indusium is called:

 
 
 
 

297. Bacteriophage consists of:

 
 
 
 

298. Which scientist in 1884 developed a valuable method of staining the bacteria?

 
 
 
 

299. An excessive enlargement of diseased organ because of increase in the number of cells is called:

 
 
 
 

300. The fungi used as food are:

 
 
 
 

301. India possesses wide biodiversity of flora and fauna. It is mainly due to its:

 
 
 
 

302. Body disorders due to harmful physiological changes are known as :

 
 
 
 

303. Acellular slime mold is/are:

 
 
 
 

304. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

305. Spores formed at the tip of fungal hyphae are called:

 
 
 
 

306. The reserve food in yeast is in the form of:

 
 
 
 

307. The smallest unit of classification is:

 
 
 
 

308. The seed known by the name of ‘chilgoza’ that is used as dry fruit belongs to :

 
 
 
 

309. Embryophyta includes :

 
 
 
 

310. Which is the correct statement about Selaginella?

 
 
 
 

311. The estimated length of DNA molecule in E. coli is:

 
 
 
 

312. Which of the following are absent in Mycoplasma?

 
 
 
 

313. An English surgeon believed that microorganisms of the air caused infection in the wound and to avoid the infection, he used carbolic acid and hence he became the father of modern antiseptic surgery. His name is:

 
 
 
 

314. One of the algae can be used as food in the space flight. It is :

 
 
 
 

315. Sweet scented lichen thalli used for making soaps, cosmetics are :

 
 
 
 

316. Bacteria growing on synthetic medium are called:

 
 
 
 

317. What are plasmids?

 
 
 
 

318. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

319. Smut of maize is caused by :

 
 
 
 

320. The penicillin family of antibiotics is used primarily against:

 
 
 
 

321. The capsule of fern sporangium bursts at a place called:

 
 
 
 

322. Which one of the following is a monocot?

 
 
 
 

323. The DNA of E coli is:

 
 
 
 

324. Protozoans are considered animals because these are:

 
 
 
 

325. Late blight of potato is caused by:

 
 
 
 

326. All but one group are included in tracheophyta; which group is this :

 
 
 
 

327. According to the fossil record, which event has occurred most recently?

 
 
 
 

328. Virus and bacteriophage are made-up of:

 
 
 
 

329. Cellular slime mold is:

 
 
 
 

330. Diatoms are not destroyed easily like other algae, because:

 
 
 
 

331. In the five kingdom system of classification, slime molds are included in:

 
 
 
 

332. True sexuality is not found in:

 
 
 
 

333. The largest known bacterium is:

 
 
 
 

334. Bryophyta have a special character from other plants:

 
 
 
 

335. A microbiologist found that some bacteria infected by phages had developed the ability to make a particular amino acid that they could not make before. This ability was probably a result of:

 
 
 
 

336. The sporangium of fern contains nearly:

 
 
 
 

337. A control measure prior to the appearance of a particular disease comes under:

 
 
 
 

338. Ovules are not found enclosed in ovary in :

 
 
 
 

339. The gametophyte of moss has distinct phases :

 
 
 
 

340. The phloem of vascular system of Cycas is :

 
 
 
 

341. The sori bearing leaves of fern are known as:

 
 
 
 

342. Transfusion tissue is present in the leaflet of:

 
 
 
 

343. Lichen show :

 
 
 
 

344. In moss, conducting tissue is made up of

 
 
 
 

345. The zygospores formed by the conjugation of gametangia are:

 
 
 
 

346. D.C. Gajdusek was awarded the Nobel Prize for discovery of prion based diseases in:

 
 
 
 

347. Columella is a specialized sterile structure found in sporangium of:

 
 
 
 

348. The pathogen that causes covered smut of Sorghum is :

 
 
 
 

349. Red rot of sugarcane is caused by :

 
 
 
 

350. The common name of Funaria, by which it is generally known, is :

 
 
 
 

351. Which of the following is true for viruses?

 
 
 
 

352. Certain enzymes like reverse transcriptase, integrase and protease are found in:

 
 
 
 

353. Photosynthetic protists belong to:

 
 
 
 

354. Pasteurization of milk involves heating for:

 
 
 
 

355. Seeds are characteristically found in:

 
 
 
 

356. Funaria is a Bryophyta because :

 
 
 
 

357. In bryophytes and pteridophytes, transport male gametes requires:

 
 
 
 

358. Which among the following is a shrub?

 
 
 
 

359. Antibiotic has been extracted from :

 
 
 
 

360. Isomorphic type alternation of generation is found in:

 
 
 
 

361. A plant which reproduces by spores, has vascular tissue but lacks flowers should belong to :

 
 
 
 

362. The five kingdom system of classification was proposed by:

 
 
 
 

363. Which type of sexual reproduction is found in C. brauni?

 
 
 
 

364. Typhoid in man is caused by:

 
 
 
 

365. Those bacteria believed to have lived during the earliest years of the Earth belong to the group:

 
 
 
 

366. Waksman was awarded Nobel Prize for the discovery of:

 
 
 
 

367. Desired type of Cycas can be grown by:

 
 
 
 

368. The nucleus of bacteria is:

 
 
 
 

369. “Families of flowering plants” Vol I (1926) and Vol II (1934) was written by:

 
 
 
 

370. Lichens are ecologically important because :

 
 
 
 

371. The spur of Pinus roxburghii has :

 
 
 
 

372. Banana bunchy top is caused by :

 
 
 
 

373. . In Bryophytes and Pteridophytes, transport of male gametes requires: (NEET 2016)

 
 
 
 

374. Proembryo in Pinus is :

 
 
 
 

375. Which character in a Cycas leaflet indicates its xerophytic nature?

 
 
 
 

376. Bacteria that are pathogenic in the body grow at temperatures:

 
 
 
 

377. Meiosis in Ulothrix takes place:

 
 
 
 

378. To which class Riccia belongs :

 
 
 
 

379. Bacteria which convert elemental nitrogen into nitrogenous substances are:

 
 
 
 

380. The upper region of moss capsule is :

 
 
 
 

381. Zoogametes are not found in:

 
 
 
 

382. Funaria can be differentiated from Cycas :

 
 
 
 

383. The spermatozoids of Cycas are :

 
 
 
 

384. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

385. The chief characteristic of fern leaf is that they:

 
 
 
 

386. What is mycorrhiza?

 
 
 
 

387. The tallest moss in the world is :

 
 
 
 

388. The disease apple scab is caused by:

 
 
 
 

389. The male gametes of Pinus are :

 
 
 
 

390. Simple polyembryony is found in :

 
 
 
 

391. In moss, sporophyte is formed on:

 
 
 
 

392. Green plants are classified as:

 
 
 
 

393. Among the currently used drugs for treating tuberculosis are:

 
 
 
 

394. The stem-like character of rhizophore of Selaginella is:

 
 
 
 

395. Rhizopus, which is saprophytic by nature, is also known as:

 
 
 
 

396. Fertility of the soil is increased by:

 
 
 
 

397. If moss protonema is formed from capsule cells it will be :

 
 
 
 

398. A lichen having a branching form and growing either prostrate or erect on the ground is called :

 
 
 
 

399. Which of the following is the most destructive enemies of mankind?

 
 
 
 

400. Indusium in Dryopteris is:

 
 
 
 

401. All algae have:

 
 
 
 

402. Asexual reproductive bodies in some higher mycelial bacteria (eg, Actinomycetous forms) are:

 
 
 
 

403. Total parasites belong to:

 
 
 
 

404. ‘Pond silk’ or ‘Water silk’ is the common name of :

 
 
 
 

405. Coenogamete is found in:

 
 
 
 

406. The first to isolate a plant virus was:

 
 
 
 

407. Which of the following is a heterosporous pteridophyte?

 
 
 
 

408. Chemicals which are applied soon after the outset of infection, suppress the development of pathogen, thus curing the plant, are called :

 
 
 
 

409. To introduce a foreign gene in a plant, which one is used?

 
 
 
 

410. Evidence in support of root-like nature of Selaginella rhizophore is:

 
 
 
 

411. Funaria are commonly found :

 
 
 
 

412. Pollination drop is:

 
 
 
 

413. The fungi are usually:

 
 
 
 

414. The truncated cone of HIV consists of:

 
 
 
 

415. In which order of Gymnosperms only fossils are present?

 
 
 
 

416. Which is a redwood tree?

 
 
 
 

417. Which of the following plants does not belong to Embryophyta?

 
 
 
 

418. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

419. Endemic plants are characterised by their:

 
 
 
 

420. Substances obtained from microorganisms and used to inhibit the growth of other microorganisms are:

 
 
 
 

421. Choose the correct statement about Spirogyra:

 
 
 
 

422. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

423. Cell walls of Gram-positive bacteria contain:

 
 
 
 

424. ‘Red snow’ is caused by which of the following in alpine region?

 
 
 
 

425. The chromosomal number in:

 
 
 
 

426. The genetic material of poxvirus is:

 
 
 
 

427. In which of the following plants would you place heterotrophs like slime moulds, rusts, mushrooms, etc.?

 
 
 
 

428. Viruses are considered to be:

 
 
 
 

429. Fern and Cycas are similar in the presence of:

 
 
 
 

430. The virus responsible for AIDS is an example of a (an):

 
 
 
 

431. Rhizopus is also commonly known by the name of:

 
 
 
 

432. The sori of Dryopteris are covered by a thick multicellular covering known as:

 
 
 
 

433. Which family of bacteria can decompose a wide variety of organic compounds, natural or man-made, including inert ones like hydrocarbons? This property has actually been used by scientists to reduce pollution such as that from petroleum spillage:

 
 
 
 

434. Eligulate, eusporangiate, homosporous, protostelic pteridophyte is:

 
 
 
 

435. The mode of nutrition of bacteria is usually:

 
 
 
 

436. Who is known as ‘Father of Taxonomy’?

 
 
 
 

437. Ovules are not found enclosed in ovary of:

 
 
 
 

438. The capsid of TMV is made-up of nearly:

 
 
 
 

439. In which group would you place a plant that reproduces by spores, develops embryo but plant body remains undifferentiated into root, stem and leaves?

 
 
 
 

440. Triple antigen injection or vaccine are for:

 
 
 
 

441. John Hutchinson, who was associated with Royal Botanical Garden, Kew, England, initially gave his system of classification in:

 
 
 
 

442. Total number of families of angiosperms in Bentham and Hooker’s system classification is:

 
 
 
 

443. If all ponds and puddles are destroyed the organism likely to be destroyed is:

 
 
 
 

444. Most primitive embryophytes are placed in:

 
 
 
 

445. Chrysanthemum stunt disease and potato spindle tuber disease are caused by:

 
 
 
 

446. The decomposition of organic compounds in the presence of O2 and without the development of odoriferous substances is called:

 
 
 
 

447. In plants, the substances which accumulate around the site of infection are :

 
 
 
 

448. The antibiotic is obtained from:

 
 
 
 

449. The group algae possesses representatives belonging to kingdom:

 
 
 
 

450. Ulothrix produces :

 
 
 
 

451. White rust of crucifers is caused by:

 
 
 
 

452. Sometimes the bacterial cell is enclosed in:

 
 
 
 

453. What is the position of neck canal cells in Pinus?

 
 
 
 

454. Mycoplasma are:

 
 
 
 

455. Saccharomyces is well known for:

 
 
 
 

456. The main characteristic that distinguishes a Spirogyra cell from a Ulothrix cell is :

 
 
 
 

457. For purposes of microbial control, the term sterilization implies:

 
 
 
 

458. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

459. Under suitable conditions, some bacteria are capable of reproducing by binary fission once every half hour. Suppose you placed a single bacterium in a culture medium and it (and its descendants) proceeded to reproduce at this rate. How many bacteria would be present after 5 hours?

 
 
 
 

460. Zygospores may not be produced in Rhizopus due to:

 
 
 
 

461. Lichens are pioneers of vegetation in a :

 
 
 
 

462. Which of the following have algal zone?

 
 
 
 

463. ‘Die naturlichen Pflanzen Familien’ which runs into 20 volumes was written by:

 
 
 
 

464. Little leaf disease of Brinjal is caused by:

 
 
 
 

465. E coli is a:

 
 
 
 

466. The lambda phase is a:

 
 
 
 

467. Botulinum toxin effects:

 
 
 
 

468. One of the distinctive feature of Spirogyra is :

 
 
 
 

469. The scientist who created the group Protista for both unicellular plants and animals, was:

 
 
 
 

470. The megaspore of Selaginella on germination produces:

 
 
 
 

471. Funaria is :

 
 
 
 

472. Which of the following organisms has characters of both animals and plants?

 
 
 
 

473. Chrysophytes, Euglenoides, Dinoflagellates, and slime molds are included in the kingdom:

 
 
 
 

474. Green plants are classified as :

 
 
 
 

475. What are Cyanobacteria?

 
 
 
 

476. Formation of gametophyte-like structure from sporophyte without reduction division is called (i.e., without formation of spores):

 
 
 
 

477. In order to label the coat alone but not the nucleic acid the bacteriophage should be grown on E. coli cells previously cultured on a medium containing:

 
 
 
 

478. The word “sea weeds” is used for:

 
 
 
 

479. When the seeds are borne on megasporophylls and are not enclosed in a fruit, the plant belongs to :

 
 
 
 

480. Cycas is:

 
 
 
 

481. Inverted omega-shaped arrangement of vascular bundles is found in :

 
 
 
 

482. Lichens reproduce by :

 
 
 
 

483. Fruiting body of lichens is :

 
 
 
 

484. Sexual reproduction of lichen is due to :

 
 
 
 

485. The photosynthetic protists are:

 
 
 
 

486. Viruses are commonly transmitted in plants through:

 
 
 
 

487. The chief characteristic of class Ascomycetes is:

 
 
 
 

488. In Cycas the fertilization is:

 
 
 
 

489. Agar-agar is obtained from:

 
 
 
 

490. Which of the following structures help in retaining moisture?

 
 
 
 

491. Ergot is obtained from :

 
 
 
 

492. Characters drawn from flowers are mainly used as basis for classification in seed plants because:

 
 
 
 

493. In a bacteriophage, DNA is present in:

 
 
 
 

494. Detailed study of bacteriophage was made by:

 
 
 
 

495. In Herpes virus DNA is:

 
 
 
 

496. Halophiles are the bacteria that require for growth:

 
 
 
 

497. Who named prion?

 
 
 
 

498. The teeth of peristome of Funaria are :

 
 
 
 

499. Which group of plants have spores, vascular bundles but no flowers?

 
 
 
 

500. Usually bacteria do not require light for synthesis of food:

 
 
 
 

501. Maximum diversity of life forms occurs in :

 
 
 
 

502. If the sporangia in a sorus are in the same stage of development it is called:

 
 
 
 

503. Which bacteria convert nitrate into nitrogen?

 
 
 
 

504. Most of the lichens are composed of :

 
 
 
 

505. Name the scientist who called viruses as “Contagium vivum fluidum”:

 
 
 
 

506. At least two billion years, nearly half the age of Earth, the only organisms that existed were:

 
 
 
 

507. Cap cells are found in the filament of:

 
 
 
 

508. A substance (a low molecular weight protein) produced by host cells in response to viral infection, that protects other cells against further viral infection is:

 
 
 
 

509. Iodine is obtained from:

 
 
 
 

510. A branch of science that deals with nature, symptoms, development and control of plant diseases is called :

 
 
 
 

511. If a disease appear on large scale after a long interval it is :

 
 
 
 

512. Botulism is a:

 
 
 
 

513. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

514. There are some dead and corky areas with definite margins on the stem, branches and fruits of lemon. This disease should be :

 
 
 
 

515. Pseudomycelium is found in:

 
 
 
 

516. All protozoans possess:

 
 
 
 

517. Pteridophytes are also known as :

 
 
 
 

518. Cocci types of bacteria are:

 
 
 
 

519. The archegonia of Selaginella are differentiated by:

 
 
 
 

520. The prothallus of fern represents the plant:

 
 
 
 

521. Which have the largest antherozoid?

 
 
 
 

522. The tallest living gymnosperm tree in the world belongs to :

 
 
 
 

523. The coralloid roots are :

 
 
 
 

524. Smallpox is caused by:

 
 
 
 

525. Who discovered cyanophages?

 
 
 
 

526. Climbers are found in genus:

 
 
 
 

527. The middle sterile part of capsule is called:

 
 
 
 

528. Each cell of Volvox colony has a structure, similar to:

 
 
 
 

529. Members of the genus Streptococcus are responsible for cases of:

 
 
 
 

530. Ovary is absent in :

 
 
 
 

531. Doctors usually boil their syringe and other surgical instruments before use:

 
 
 
 

532. Plant body is diploid and meiosis occurs in diploid gametangia at the time of formation of gametes in:

 
 
 
 

533. Name the scientist who gave dual hypothesis for lichens?

 
 
 
 

534. Which one of the following temperatures would most likely kill a mesophile?

 
 
 
 

535. Parmelia belongs to :

 
 
 
 

536. Reproduction in Cycas takes place by :

 
 
 
 

537. The bacterial decomposition of nitrogenous organic compounds in the absence of abundant oxygen usually results in the formation of substances of offensive odor, chiefly sulfur compounds. Such anaerobic decomposition is called:

 
 
 
 

538. An excessive enlargement of diseased organ because of increase in the number of cells is called :

 
 
 
 

539. Megasporophylls of Pteridophyta are comparable to which structure of Angiosperms?

 
 
 
 

540. Marsilea quadrifolia has only four leaflets. It is a:

 
 
 
 

541. Rhizopus and yeast are usually:

 
 
 
 

542. System of classification presented by a Russian botanist A. Takhtajan is:

 
 
 
 

543. Generic name of mango is:

 
 
 
 

544. Germ theory of disease was proposed by:

 
 
 
 

545. Severe famine of West Bengal of 1942-43 was due to destruction of rice crop by a fungus called :

 
 
 
 

546. Aflatoxin is produced by:

 
 
 
 

547. Which statement is wrong in regard to bacteria?

 
 
 
 

548. On germination, each zygospore of Spirogyra divides meiotically into four, but the number of filaments produced is :

 
 
 
 

549. Red rot of sugarcane is caused by:

 
 
 
 

550. The importance of study of parasitic fungi is that they are:

 
 
 
 

551. Which of the following lichens is harmful?

 
 
 
 

552. Antibiotics cure the disease by:

 
 
 
 

553. Pinus gerardiana is :

 
 
 
 

554. Spirogyra represents the :

 
 
 
 

555. The science of study of bacteria is known as bacteriology. The name bacteria was first of all given by:

 
 
 
 

556. At the time of germination of zygospore in Spirogyra:

 
 
 
 

557. In binomial system most of the words are:

 
 
 
 

558. The seedless plants which possess vascular tissues are:

 
 
 
 

559. The columella of moss is the region of moss capsule :

 
 
 
 

560. The Protists in which cell size decreases with each division are:

 
 
 
 

561. The similarity between cyanobacteria and bacteria:

 
 
 
 

562. In moss, peristomial teeth are:

 
 
 
 

563. The xylem of stele of fern rhizome is made up of:

 
 
 
 

564. Bacteria which are highly spiral in shape are called:

 
 
 
 

565. The ascus of yeast contains:

 
 
 
 

566. Penicillin was discovered by:

 
 
 
 

567. Infective portion of a virus is nucleic acid, this was discovered by:

 
 
 
 

568. Placenta in fern is:

 
 
 
 

569. The smut mycelium which initiates the infection is usually :

 
 
 
 

570. Which of the following causes smut disease in wheat?

 
 
 
 

571. Facultative saprophyte is:

 
 
 
 

572. The cortex cells of the young ‘stem’ or axis of Funaria are :

 
 
 
 

573. When a diseased plant is legally stopped from export, this is done under :

 
 
 
 

574. Heterocysts are found in :

 
 
 
 

575. Diaminopimelic acid and muramic acid are constituents of cell walls in:

 
 
 
 

576. The antheridia in Funaria are formed at the apex of the male shoot in :

 
 
 
 

577. The Rhizopus gametes are formed in:

 
 
 
 

578. Germination of the seed of Pinus is :

 
 
 
 

579. Gametophyte is the main plant body in :

 
 
 
 

580. Nitrifying bacteria play an important role by converting:

 
 
 
 

581. Infective nature of Tobacco mosaic disease was discovered by:

 
 
 
 

582. Which type of sexual reproduction is found in C. debaryana?

 
 
 
 

583. Aflatoxin is produced as a product in :

 
 
 
 

584. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

585. The bacteria that cause tetanus can be killed only by prolonged heating at temperatures considerably above boiling. This suggests that tetanus bacteria:

 
 
 
 

586. In between the sex organs of Funaria are found a number of hair-like structures which are known as :

 
 
 
 

587. What is the reserve food material in chlorophycean algae?

 
 
 
 

588. The oldest book of botanical work which now exists was written by Theophrastus. Its name is:

 
 
 
 

589. Mixed cropping helps :

 
 
 
 

590. The source of litmus is :

 
 
 
 

591. The two conjugating gametangia of Rhizopus are:

 
 
 
 

592. Which is not the characteristic feature in Spirogyra life history?

 
 
 
 

593. The order generally ends with:

 
 
 
 

594. The gametophyte produced by apospory is :

 
 
 
 

595. Which is a fungicide?

 
 
 
 

596. Leaf spot of groundnut is caused by :

 
 
 
 

597. Gymnosperms could also be called as:

 
 
 
 

598. Heterosporous pteridophytes always form:

 
 
 
 

599. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

600. Shedding of pollen grains in Pinus takes place at :

 
 
 
 

601. Downy mildew disease is caused by :

 
 
 
 

602. Which of the following shows heterotrichous habit?

 
 
 
 

603. Which of the following is necessary for the process of conjugation in bacteria?

 
 
 
 

604. Anoxygenic photosynthesis occurs in:

 
 
 
 

605. When a fungus is able to pass its complete life cycle on one host it is called:

 
 
 
 

606. Which of the following plants does not have archegonium?

 
 
 
 

607. Chemosynthetic bacteria are:

 
 
 
 

608. Linnaeus is credited with introducing:

 
 
 
 

609. Which is not found in bacteria?

 
 
 
 

610. The secondary xylem of the vascular bundles of Cycas is usually :

 
 
 
 

611. Cycas plant in appearance resembles :

 
 
 
 

612. Who is known as ‘Father of Taxonomy’?

 
 
 
 

613. Fungi have been separated from kingdom Protista on the basis of:

 
 
 
 

614. The life cycle of Saccharomyces ludwigii represents a typical type of life cycle:

 
 
 
 

615. First animal pathogenic virus was discovered by:

 
 
 
 

616. Blue-green algae, which live as endozoic in protozoans are called :

 
 
 
 

617. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

618. Pollination in Cycas takes place by :

 
 
 
 

619. Which of the following is the kingdom of multicellular producers?

 
 
 
 

620. The leaves of Funaria are :

 
 
 
 

621. The vascular bundles of Cycas stem are :

 
 
 
 

622. Most primitive group of vascular plants are:

 
 
 
 

623. What is special feature of fern archegonia?

 
 
 
 

624. Biciliate antherozoids are found in which of the following?

 
 
 
 

625. Quarantine regulations are concerned with:

 
 
 
 

626. In bacterial photosynthesis, which functions as reductant of CO₂ is:

 
 
 
 

627. Distinction between prokaryotes and eukaryotes is mainly based on:

 
 
 
 

628. In a diplontic life cycle:

 
 
 
 

629. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

630. Beijerinck isolated a free living nitrogen fixer bacterium, named:

 
 
 
 

631. Which of the following diseases are caused by Mycoplasma?

 
 
 
 

632. The root nodules of leguminous plants contain:

 
 
 
 

633. Which of the following plants does not belong to Embryophyta?

 
 
 
 

634. The structure produced from germination of a microspore of Selaginella is:

 
 
 
 

635. In Cycas, the vascular bundle of a leaflet is :

 
 
 
 

636. Who among the following discovered virus?

 
 
 
 

637. In which of the following diploid stage is usually dominant?

 
 
 
 

638. A disease is abnormal state that may result due to :

 
 
 
 

639. The plants with soft and delicate stems, about a meter tall are known as :

 
 
 
 

640. Which organisms are the oldest life forms?

 
 
 
 

641. Black rust of wheat is caused by:

 
 
 
 

642. The fact that best supports the concept that viruses are living is that viruses:

 
 
 
 

643. When an infection is very wide in occurrence, it is called :

 
 
 
 

644. Lichens form the first community in

 
 
 
 

645. Group of viruses, which attack members of Myxophyceae are termed as:

 
 
 
 

646. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

647. The bacteria that can spoil under-processed canned food are:

 
 
 
 

648. Rhizopus belongs to:

 
 
 
 

649. Heterospory and ligulate leaves are a feature of:

 
 
 
 

650. Lichens are indicators of :

 
 
 
 

651. Water-borne bacterial diseases are:

 
 
 
 

652. Bryophyta have been placed in cryptogams because:

 
 
 
 

653. Pneumonia is caused by:

 
 
 
 

654. Which is a tautonym?

 
 
 
 

655. Facultative parasite is:

 
 
 
 

656. The number of neck canal cells in archegonium of Selaginella is:

 
 
 
 

657. The foliose lichens are attached to substratum by means of :

 
 
 
 

658. Genetically engineered bacteria have been successfully used in the commercial production of:

 
 
 
 

659. Enzymes are absent in:

 
 
 
 

660. The flagella of Chlamydomonas are:

 
 
 
 

661. The biological term used to describe two organisms living together and beneficial to each other is:

 
 
 
 

662. Sometimes a ladder-like structure is exhibited in Spirogyra due to :

 
 
 
 

663. Azolla growing in paddy fields helps in:

 
 
 
 

664. In moss, stomata are found:

 
 
 
 

665. The sporophyte of Riccia is represented by :

 
 
 
 

666. Under certain circumstances, a generating cell forms aplanospores from mucilaginous mass, which encloses numerous small but uninucleated bodies; this is known as :

 
 
 
 

667. Club moss and Peat moss belong to:

 
 
 
 

668. Pinus microsporophyll bears:

 
 
 
 

669. Meristele of fern is:

 
 
 
 

670. The smallest bacterium is:

 
 
 
 

671. Which group of algae have an incipient nucleus?

 
 
 
 

672. Most resistant spore in bacteria is:

 
 
 
 

673. Which is a group of ancient photosynthetic prokaryotes which give oxygen during photosynthesis?

 
 
 
 

674. Which of the following applies to Selaginella?

 
 
 
 

675.

676. Bacteria are found everywhere, except:

 
 
 
 

677. Rhizoids of Riccia are :

 
 
 
 

678. The multinucleate and aseptate hypha of Rhizopus are known as:

 
 
 
 

679. Conifers are adapted to tolerate extreme environmental conditions because of: (NEET 2016)

 
 
 
 

680. The primitive prokaryotes responsible for the production of biogas from the dung of ruminant animals include the:

 
 
 
 

681. The stele of Dryopteris is a:

 
 
 
 

682. Selaginella differs from Moss in having:

 
 
 
 

683. Embryo formation is not known in :

 
 
 
 

684. The tree fern is:

 
 
 
 

685. Vegetative reproduction in Cycas is by means of :

 
 
 
 

686. The inability of a plant to resist the effects of a pathogen or any other damaging factors is known as :

 
 
 
 

687. In bacterial chromosome, the nucleic acid polymers are:

 
 
 
 

688. Which group of plants have spores, vascular bundles and no seeds?

 
 
 
 

689. Why is Cycas called a living fossil?

 
 
 
 

690. Ethylene oxide is widely used to:

 
 
 
 

691. Among the algae kelps are :

 
 
 
 

692. What is a vector?

 
 
 
 

693. Zygote which divides by meiotic division (zygotic meiosis occurs in):

 
 
 
 

694. Most primitive kind of flower is represented by:

 
 
 
 

695. Nucleus in Spirogyra is suspended in the cell with the help of :

 
 
 
 

696. Ergot of rye is caused by:

 
 
 
 

697. In Pteris, the archegonia are present:

 
 
 
 

698. Which is not true for Escherichia coli?

 
 
 
 

699. Broad spectrum antibiotic is, which:

 
 
 
 

700. The developing embryo in Selaginella derives its food from:

 
 
 
 

701. Nannandria are:

 
 
 
 

702. The green upright sterile hair-like structures among the antheridia in moss are known as :

 
 
 
 

703. Which condition is found in Cycas?

 
 
 
 

704. The spores of Funaria on germination give rise to :

 
 
 
 

705. Bacteria differ from viruses in being sensitive to:

 
 
 
 

706. Ex situ conservation of endangered wildlife flora and fauna is possible through:

 
 
 
 

707. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

708. The sporophyte of Riccia is :

 
 
 
 

709. In which of the following, isogamy, anisogamy and oogamy all are found?

 
 
 
 

710. The sori in Dryopteris are found on:

 
 
 
 

711. Mycoplasmas are not viruses in nature because:

 
 
 
 

712. Circular DNA is seen in:

 
 
 
 

713. Select the wrong statement:

 
 
 
 

714. Yeast is different from Rhizopus and Penicillium in being:

 
 
 
 

715. Capsella bursa-pastoris exhibit a life cycle which is:

 
 
 
 

716. The roots of Cycas are :

 
 
 
 

717. If a sporangium developed from a group of cells it is called:

 
 
 
 

718. Which part of the plant is not affected by Albugo?

 
 
 
 

719. Multicellular and jacketed sex organs are found in :

 
 
 
 

720. Water-net is the name of:

 
 
 
 

721. Cycas is :

 
 
 
 

722. The most primitive vascular plants is:

 
 
 
 

723. Fern plants are:

 
 
 
 

724. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

725. A perennial that bears flowers and fruits once in a life time is known as :

 
 
 
 

726. How is moss different from fern?

 
 
 
 

727. In moss, reduction division occurs in :

 
 
 
 

728. Sometimes different authors give different names to one and the same species. In such a situation:

 
 
 
 

729. The sporangia of Selaginella are attached:

 
 
 
 

730. In Selaginella, the microsporangia are:

 
 
 
 

731. There is a class of phenolic compounds produced by the host plant in response to fungal infections :

 
 
 
 

732. A special structure is born in between the microsporophyll and microsporangium of Selaginella. It is called:

 
 
 
 

733. A group of plants with similar characteristics of any rank is termed:

 
 
 
 

734. Which of the following is a parasitic algae?

 
 
 
 

735. Which of the following is a monocot?

 
 
 
 

736. Metulae are found in:

 
 
 
 

737. The zygospore in Rhizopus on germination forms:

 
 
 
 

738. Heterospory is the production of:

 
 
 
 

739. Tautonyms are illegitimate in:

 
 
 
 

740. Winged seeds are found in :

 
 
 
 

741. To sterilize glassware and the culture medium, which equipment is used?

 
 
 
 

742. The term stele was given by:

 
 
 
 

743. Elongated structure on upper cortex of lichen, having some algal and fungal partners as in main thallus is :

 
 
 
 

744. Rice, pea, potato are :

 
 
 
 

745. A plant bears fruit, has a column of vascular bundle and a tap root system. This plant is a :

 
 
 
 

746. Leptothrix is an example of iron bacteria Which of the following statements best fit the iron bacteria?

 
 
 
 

747. The ferns are usually found:

 
 
 
 

748. Of all organisms, the most adaptable and versatile are:

 
 
 
 

749. Which type of sexual reproduction is found in Volvox?

 
 
 
 

750. Which is an edible fungus?

 
 
 
 

751. On the basis of distribution of algal component in the thallus, lichens are classified as :

 
 
 
 

752. The chief characteristic of bryophyta is that :

 
 
 
 

753. Which of the following can be said to be the precursor of seed-bearing plants?

 
 
 
 

754. Which of the following would appear as the pioneer organism on bare rocks :

 
 
 
 

755. In dinoflagellates, the two flagella are:

 
 
 
 

756. The male cone of Cycas is made up of a group of :

 
 
 
 

757. The sex organs that develop amongst the rhizoids of fern prothallus are:

 
 
 
 

758. In moss, sporogenous tissue arises from:

 
 
 
 

759. Vascular cryptogam is the term used for :

 
 
 
 

760. The number of androcytes in male prothallus of Selaginella are:

 
 
 
 

761. Which functions as hydrogen donor in photosynthetic green sulfur bacteria?

 
 
 
 

762. The leafy fern plant represents the:

 
 
 
 

763. The label of a herbarium sheet does not carry information of:

 
 
 
 

764. The gametophyte of fern bears:

 
 
 
 

765. . In Oswald and Tippo’s system of classification, Pteropsida does not include:

 
 
 
 

766. Some bacteria cannot be killed easily because of:

 
 
 
 

767. Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature:

 
 
 
 

768. Chief constituents of bordeaux mixture are :

 
 
 
 

769. Redness of red sea is due to :

 
 
 
 

770. In the life of all plant groups, the first cell of gametophytic generation is:

 
 
 
 

771. Which of the following organism has characters of both animals and plants?

 
 
 
 

772. Spirogyra differs from moss protonema in having :

 
 
 
 

773. Cleavage polyembryony is found in :

 
 
 
 

774. Development of sporophyte from gametophyte without sexual reproduction is called :

 
 
 
 

775. Bacteriophages have been used as:

 
 
 
 

776. Disease-resistant plant varieties can be produced by:

 
 
 
 

777. The specific genes found on the plasmids of E coli are:

 
 
 
 

778. Citrus canker is caused by:

 
 
 
 

779. Ovules are not found enclosed in ovary in :

 
 
 
 

780. Spermatophyta are characterized by producing:

 
 
 
 

781. Fern phloem lacks:

 
 
 
 

782. Streptomycin is obtained from:

 
 
 
 

783. Standard size of a herbarium sheet is:

 
 
 
 

784. The sporangiophores in Rhizopus are:

 
 
 
 

785. Ectocarpus produces:

 
 
 
 

786. Which disease is caused by the bacterium Treponema pallidum?

 
 
 
 

787. Fruits are not found in :

 
 
 
 

788. Mycelium is the name given to the plant body of:

 
 
 
 

789. Agar-agar and algin are the product of:

 
 
 
 

790. The leaves of Funaria are :

 
 
 
 

791. Leprosy is caused by:

 
 
 
 

792. Amoeba is a member of the phylum:

 
 
 
 

793. Which of the following are included in Tracheophyta?

 
 
 
 

794. Gram stain is used to:

 
 
 
 

795. Early blight of potato is caused by:

 
 
 
 

796. When the F-factor enters a recipient cell during conjugation, the recipient cell:

 
 
 
 

797. Mycoplasma is different from bacteria due to:

 
 
 
 

798. Pythium debaryanum is the causative agent of:

 
 
 
 

799. Viruses have:

 
 
 
 

800. Prof. R.N. Singh has noteworthy contributions in the field of:

 
 
 
 

801. In Funaria, calyptra is derived from :

 
 
 
 

802. Pinus is:

 
 
 
 

803. Richest source of protein, becoming popular throughout world and available in the Indian market also:

 
 
 
 

804. One of the major components of the cell wall of most fungi is: (NEET 2016)

 
 
 
 

805. Streptomyces falls under:

 
 
 
 

806. Rhizophore of Selaginella is:

 
 
 
 

807. Male gametophyte of Selaginella is found:

 
 
 
 

808. Mycoplasma are sensitive to:

 
 
 
 

809. Cryptogams include :

 
 
 
 

810. Which of the following is not a viral disease?

 
 
 
 

811. Protistan algae obtain their food as:

 
 
 
 

812. The development of sporangium in Selaginella is:

 
 
 
 

813. Yellow vein Mosaic of Bhindi Virus (Hibiscus Virus-I) is transmitted through:

 
 
 
 

814. For the production of which microbial action is not required?

 
 
 
 

815. Iodine is obtained from :

 
 
 
 

816. Mycoplasma was discovered by:

 
 
 
 

817. Important feature of Spirogyra that distinguishes it from Ulothrix is :

 
 
 
 

818. The disease occurring more or less regularly from year to year in a particular locality is referred to as :

 
 
 
 

819. Photoautotrophic bacteria have:

 
 
 
 

820. Fern prothallus is:

 
 
 
 

821. The leaf of Cycas shows:

 
 
 
 

822. In tracheophyta:

 
 
 
 

823. Most of the algae along with other submerged plants usually float on water during the day time, while they sink at night, because :

 
 
 
 

824. Bacteria species of Thiobacillus and Beggiatoa play an important role in the:

 
 
 
 

825. Diphtheria is caused by:

 
 
 
 

826. In Cycas:

 
 
 
 

827. In angiosperms double fertilization represents:

 
 
 
 

828. Infective part of virus was discovered by:

 
 
 
 

829. Bacteria are placed under:

 
 
 
 

830. Economic importance of bacteria lies in their being:

 
 
 
 

831. Substances released by some bacteria to cause toxicity in host are:

 
 
 
 

832. Viroids have:

 
 
 
 

833. Each chloroplast in Spirogyra bears :

 
 
 
 

834. Chemosynthetic bacteria are:

 
 
 
 

835. Sporophyte of Funaria is :

 
 
 
 

836. In pteridophytes, meiosis occurs at the stage of:

 
 
 
 

837. The plants which produce embryo but lack vascular tissue and seeds are placed in :

 
 
 
 

838. What is streptomycin?

 
 
 
 

839. The disease symptom necrosis refers to :

 
 
 
 

840. Pythium debaryanum is the causative agent of:

 
 
 
 

841. The fungi are mostly:

 
 
 
 

842. Agar-agar, a common substance used in research is obtained from :

 
 
 
 

843. Some biologists have used the term Mycetozoa for:

 
 
 
 

844. Parthenium hysterophorus is a native of South America but it grows luxuriantly in most of the area of India. In India, it is considered as:

 
 
 
 

845. Certain leafless non-green branches produced from Selaginella are:

 
 
 
 

846. Bacteria which are spherical are called:

 
 
 
 

847. Scientific name of Mango is Mangifera indica L. Here L represents:

 
 
 
 

848. The most important property of yeast is:

 
 
 
 

849. System of classification proposed by Bentham and Hooker is:

 
 
 
 

850. Special feature of pollen grains of Pinus is :

 
 
 
 

851. The spores which are formed in the sporangium of Rhizopus are:

 
 
 
 

852. Number of capsomeres forming capsid of TMV is:

 
 
 
 

853. Disease resistant plant varieties can be produced by :

 
 
 
 

854. In the sub genus Heterophyllum of genus Selaginella the leaves are present in:

 
 
 
 

855. Ancestors of Bryophyta were some aquatic plants is clear from the fact that :

 
 
 
 

856. In Cycas which structure is equivalent to stamen?

 
 
 
 

857. Members of the genera Azotobacter and Rhizobium are important because they:

 
 
 
 

858. What is the role of nitrifying bacteria?

 
 
 
 

859. Oswald Tippo’s classification was based on :

 
 
 
 

860. Which of the following structures help in respiration of lichens?

 
 
 
 

861. Seeds are characteristically found in :

 
 
 
 

862. Ginkgo biloba is a:

 
 
 
 

863. In which of the following, RNA is the genetic material?

 
 
 
 

864.