Quiz_Random

1. E coli is a:

 
 
 
 

2. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. The photosynthetic protists are:

 
 
 
 

9. Interferon is a:

 
 
 
 

10. Vascular cryptogams is the term used for:

 
 
 
 

11. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

12. Yeast is a source of:

 
 
 
 

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

 
 
 
 

14. Male gametes in Dryopteris are:

 
 
 
 

15. In a bacteriophage, DNA is present in:

 
 
 
 

16. Viroids have:

 
 
 
 

17. Red rot of sugarcane is caused by:

 
 
 
 

18. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

19. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

24. Which of the following are included in Tracheophyta?

 
 
 
 

25. Fertility of the soil is increased by:

 
 
 
 

26. Selaginella differs from Moss in having:

 
 
 
 

27. Fruits are not found in:

 
 
 
 

28. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Heterocysts are found in :

 
 
 
 

32. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

33. Metulae are found in:

 
 
 
 

34. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. The leaves of Funaria are :

 
 
 
 

42. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

44. Which of the following is sago palm?

 
 
 
 

45. The teeth of peristome of Funaria are :

 
 
 
 

46. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

48. The smallest bacterium is:

 
 
 
 

49. The lichens growing on rocks are called :

 
 
 
 

50. Acetobacter is useful in:

 
 
 
 

51. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

53. Heterospory and ligulate leaves are a feature of:

 
 
 
 

54. Isomorphic type alternation of generation is found in:

 
 
 
 

55. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

56. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

61. Ovules are not found enclosed in ovary of:

 
 
 
 

62. Which of the following is a parasitic algae?

 
 
 
 

63. Clostridium can:

 
 
 
 

64. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

66. Ethylene oxide is widely used to:

 
 
 
 

67. Virus and bacteriophage are made-up of:

 
 
 
 

68. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

70. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. Cyathia is characterized by:

 
 
 
 

74. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

79. Pinus is:

 
 
 
 

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

 
 
 
 

81. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. All archaebacteria lack:

 
 
 
 

86. Azolla and Salvinia both are:

 
 
 
 

87. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

89. Infective part of virus was discovered by:

 
 
 
 

90. Which lichen is called Reindeer moss?

 
 
 
 

91. Cycas is :

 
 
 
 

92. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

94. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

95. Which is the correct statement about Selaginella?

 
 
 
 

96. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

98. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

100. Pseudomycelium is found in:

 
 
 
 

101. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

105. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

108. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

114. What is special feature of fern archegonia?

 
 
 
 

115. Iodine is obtained from:

 
 
 
 

116. Ovary is absent in :

 
 
 
 

117. Placenta in fern is:

 
 
 
 

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

 
 
 
 

119. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. Which is a fungicide?

 
 
 
 

123. 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?

 
 
 
 

124. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. The gametophyte of moss has distinct phases :

 
 
 
 

129. Which of the following lichens is harmful?

 
 
 
 

130. Germ theory of disease was proposed by:

 
 
 
 

131. In Cycas which structure is equivalent to stamen?

 
 
 
 

132. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

135. Pollination in Pinus is :

 
 
 
 

136. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

139. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

142. Proembryo in Pinus is :

 
 
 
 

143. Reproduction in Cycas takes place by :

 
 
 
 

144. Etiology includes the study of :

 
 
 
 

145. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

148. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

150. Ovary is absent in:

 
 
 
 

151. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

154. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

156. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

158. Some diseases caused by bacteria are:

 
 
 
 

159. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. Ovules are not found enclosed in ovary in :

 
 
 
 

163. Who discovered heterothallism in fungi?

 
 
 
 

164. The Rhizopus is:

 
 
 
 

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

 
 
 
 

166. The chloroplast of Chlamydomonas are:

 
 
 
 

167. Ginkgo biloba is a:

 
 
 
 

168. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

170. The antibiotic is obtained from:

 
 
 
 

171. Facultative parasite is:

 
 
 
 

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

 
 
 
 

173. Methanogens belong to:

 
 
 
 

174. The order generally ends with:

 
 
 
 

175. Woody climbers are known as :

 
 
 
 

176. Cap cells are found in the filament of:

 
 
 
 

177. Ovules are not found enclosed in ovary in :

 
 
 
 

178. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

180. The two conjugating gametangia of Rhizopus are:

 
 
 
 

181. Tautonyms are illegitimate in:

 
 
 
 

182. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

184. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

187. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

189. Transfusion tissue is present in the leaflet of:

 
 
 
 

190. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

192. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

194. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

199. Which is a gametophytic tissue?

 
 
 
 

200. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

202. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

208. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

211. The source of litmus is :

 
 
 
 

212. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

214. Pasteurization of milk involves heating for:

 
 
 
 

215. Parmelia belongs to :

 
 
 
 

216. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

218. Fruits are not found in Cycas because:

 
 
 
 

219. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

221. Fruiting body of lichens is :

 
 
 
 

222. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. The disease symptom necrosis refers to :

 
 
 
 

226. Who among the following discovered virus?

 
 
 
 

227. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

230. The most important property of yeast is:

 
 
 
 

231. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

233. In moss, peristomial teeth are:

 
 
 
 

234. Fairy ring is the name given to:

 
 
 
 

235. In Funaria :

 
 
 
 

236. Yeast grows more rapidly in:

 
 
 
 

237. 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?

 
 
 
 

238. The phloem of vascular system of Cycas is :

 
 
 
 

239. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

241. In moss, reduction division occurs in :

 
 
 
 

242. Cycas is:

 
 
 
 

243. How a fern differs from a moss?

 
 
 
 

244. An alga which is rich in proteins:

 
 
 
 

245. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

247. The truncated cone of HIV consists of:

 
 
 
 

248. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

251. Bryophyta have been placed in cryptogams because:

 
 
 
 

252. LSD is:

 
 
 
 

253. Who discovered cyanophages?

 
 
 
 

254. Which condition is found in Cycas?

 
 
 
 

255. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

258.

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

 
 
 
 

260. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

265. The sporophyte of Riccia is :

 
 
 
 

266. The largest alga is:

 
 
 
 

267. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

269. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. The lambda phase is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

277. Spirogyra represents the :

 
 
 
 

278. Number of capsomeres forming capsid of TMV is:

 
 
 
 

279. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

282.

 

283. Roots are absent in :

 
 
 
 

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

 
 
 
 

285. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

286. Enzymes are absent in:

 
 
 
 

287. Pythium debaryanum is the causative agent of:

 
 
 
 

288. Climbers are found in genus:

 
 
 
 

289. Which group of algae have an incipient nucleus?

 
 
 
 

290. Psilotum is:

 
 
 
 

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

 
 
 
 

292. Which of the following is a heterosporous pteridophyte?

 
 
 
 

293. The sporophyte of Riccia is represented by :

 
 
 
 

294. Bryophyta have a special character from other plants:

 
 
 
 

295. Protistan algae obtain their food as:

 
 
 
 

296. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

298. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

301. . Tapetum develops in:

 
 
 
 

302. Which of the following is true for Selaginella?

 
 
 
 

303. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

306. Lichen show :

 
 
 
 

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

 
 
 
 

308. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

309. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

311. Seeds are characteristically found in:

 
 
 
 

312. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

316. The fungi are mostly:

 
 
 
 

317. In tracheophyta:

 
 
 
 

318. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

320. The archegonia in Selaginella develop on:

 
 
 
 

321. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

325. The sporangia of Selaginella are attached:

 
 
 
 

326. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

330. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

332. Bentham and Hooker placed gymnosperms:

 
 
 
 

333. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

334. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

339. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

341. The gametophyte of fern is as:

 
 
 
 

342. Bacteria were first discovered by:

 
 
 
 

343. Fern plants are:

 
 
 
 

344. Select the wrong statement:

 
 
 
 

345. 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:

 
 
 
 

346. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

348. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

351. Which of the following are absent in Mycoplasma?

 
 
 
 

352. Vascular tissue is found in :

 
 
 
 

353. Multicellular and jacketed sex organs are found in :

 
 
 
 

354. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

356. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

359. The tree fern is:

 
 
 
 

360. The chromosomal number in:

 
 
 
 

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

 
 
 
 

362. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

364. Pneumonia is caused by:

 
 
 
 

365. In moss, sporogenous tissue arises from:

 
 
 
 

366. The fungi are usually:

 
 
 
 

367. Rhizophore of Selaginella is:

 
 
 
 

368. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

372. What is a vector?

 
 
 
 

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

 
 
 
 

374. Bacteria growing on synthetic medium are called:

 
 
 
 

375. 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:

 
 
 
 

376. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

378. Saccharomyces ludwigii ascus produces:

 
 
 
 

379. The antherozoids of Funaria are :

 
 
 
 

380. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

386. Halophiles are the bacteria that require for growth:

 
 
 
 

387. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

389. Anoxygenic photosynthesis occurs in:

 
 
 
 

390. Most primitive embryophytes are placed in:

 
 
 
 

391. In Pteris, the archegonia are present:

 
 
 
 

392. The megaspore of Selaginella on germination produces:

 
 
 
 

393. Azolla growing in paddy fields helps in:

 
 
 
 

394. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

396. The fungi used as food are:

 
 
 
 

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

 
 
 
 

398. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

401. Red rot of sugarcane is caused by :

 
 
 
 

402. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

404. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

406. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

408. Lichens form the first community in

 
 
 
 

409. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

410. Meristele of fern is:

 
 
 
 

411. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

413. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

414. The vascular bundles of Cycas stem are :

 
 
 
 

415. Agar-agar is obtained from:

 
 
 
 

416. How is moss different from fern?

 
 
 
 

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

 
 
 
 

418. Fruits are not found in :

 
 
 
 

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

 
 
 
 

420. Cleavage polyembryony is found in :

 
 
 
 

421. Photosynthetic bacteria have:

 
 
 
 

422. Aflatoxin is produced as a product in :

 
 
 
 

423. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

426. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

428. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

430. The development of sporangium in Selaginella is:

 
 
 
 

431. Cyanophage is a virus that attacks:

 
 
 
 

432. Botulism is a:

 
 
 
 

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

 
 
 
 

434. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

438. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

440. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

442. Which of the following shows heterotrichous habit?

 
 
 
 

443. Most of the algae are :

 
 
 
 

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

 
 
 
 

445. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

448. Winged seeds are found in :

 
 
 
 

449. Disease resistant plant varieties can be produced by :

 
 
 
 

450. In Cycas:

 
 
 
 

451. Botulinum toxin effects:

 
 
 
 

452. Bacteria are considered to be plants because they:

 
 
 
 

453. Nannandria are:

 
 
 
 

454. Funaria are commonly found :

 
 
 
 

455. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

458. Milk is converted to curd by:

 
 
 
 

459. Smallpox is caused by:

 
 
 
 

460. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

464. Water-net is the name of:

 
 
 
 

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

 
 
 
 

466. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

468. Some bacteria cannot be killed easily because of:

 
 
 
 

469. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

471. Chemosynthetic bacteria are:

 
 
 
 

472. Genetic material of TMV is:

 
 
 
 

473. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

476. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

479. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. The orders generally have the uniform endings:

 
 
 
 

483. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

486. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

488. Generic name of mango is:

 
 
 
 

489. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

492. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

497. Sexual reproduction in Rhizopus is by:

 
 
 
 

498. The ascus of yeast contains:

 
 
 
 

499. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

501. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

502. Early blight of potato is caused by:

 
 
 
 

503. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

505. Soil fertility is lost by the activities of:

 
 
 
 

506. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

516. Cellular slime mold is:

 
 
 
 

517. Which is the nuclear material in bacteria?

 
 
 
 

518. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

520. John Hutchinson divided dicots into two divisions:

 
 
 
 

521. Viruses are commonly transmitted in plants through:

 
 
 
 

522. In a diplontic life cycle:

 
 
 
 

523. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

526. Redness of red sea is due to :

 
 
 
 

527. Which statement is wrong in regard to bacteria?

 
 
 
 

528. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

530. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

533. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

538. The mycelium of Rhizopus is:

 
 
 
 

539. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

540. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

542. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

545. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

547. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

549. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

551. Longest known virus is:

 
 
 
 

552. Cryptogams include :

 
 
 
 

553. The fungi that grow on wood are called:

 
 
 
 

554. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

556. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

557. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

560. Detailed study of bacteriophage was made by:

 
 
 
 

561. 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?

 
 
 
 

562. The smallest unit of classification is:

 
 
 
 

563. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

565. Gymnosperms could also be called as:

 
 
 
 

566. The coralloid roots are :

 
 
 
 

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

 
 
 
 

568. The role of meiosis is for:

 
 
 
 

569. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

571. Saccharomyces is used in:

 
 
 
 

572. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

574. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

576. Bacteria differ from viruses in being sensitive to:

 
 
 
 

577. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

579. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

581. Select the wrong statement:

 
 
 
 

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

 
 
 
 

583. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

586. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

588. Antibiotics cure the disease by:

 
 
 
 

589. Mycoplasmas are not viruses in nature because:

 
 
 
 

590. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

592. Quarantine regulations are concerned with:

 
 
 
 

593. Fern prothallus produces:

 
 
 
 

594. All algae have:

 
 
 
 

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

 
 
 
 

596. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

598. Embryophyta includes :

 
 
 
 

599. Who discovered streptomycin?

 
 
 
 

600. Broad spectrum antibiotic is, which:

 
 
 
 

601. Ergot is obtained from :

 
 
 
 

602. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

604. The sexual reproductive organs in Rhizopus are:

 
 
 
 

605. 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:

 
 
 
 

606. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

607. The sori in Dryopteris are found on:

 
 
 
 

608. Which of the following have algal zone?

 
 
 
 

609. The upper region of moss capsule is :

 
 
 
 

610. Bivalved siliceous shell or frustule occur in:

 
 
 
 

611. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

613. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

615. Pollination in Cycas takes place by :

 
 
 
 

616. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

620. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

622. The archegonia of Selaginella are differentiated by:

 
 
 
 

623. Total parasites belong to:

 
 
 
 

624. Ectocarpus produces:

 
 
 
 

625. Where does meiosis occur in yeast?

 
 
 
 

626. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

629. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

631. Funaria is :

 
 
 
 

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

 
 
 
 

633. Vegetative reproduction in Cycas is by means of :

 
 
 
 

634. The sporangiophores in Rhizopus are:

 
 
 
 

635. In moss, sporophyte is formed on:

 
 
 
 

636. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

638. Embryophyta includes:

 
 
 
 

639. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

641. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. In Herpes virus DNA is:

 
 
 
 

646. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

647. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

650. Chemosynthetic bacteria are:

 
 
 
 

651. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

653. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

655. Vascular cryptogam is the term used for :

 
 
 
 

656. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

658. Pasteur is famous for his:

 
 
 
 

659. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

663. Facultative saprophyte is:

 
 
 
 

664. The megasporangium of Selaginella is:

 
 
 
 

665. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

667. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

669. Maximum diversity of life forms occurs in :

 
 
 
 

670.

671. 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?

 
 
 
 

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

 
 
 
 

673. In Funaria, calyptra is derived from :

 
 
 
 

674. Cycas plant in appearance resembles :

 
 
 
 

675. Siphonogamy is found in:

 
 
 
 

676. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

678. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

680. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

681. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

685. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

688. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

690. The chief characteristic of bryophyta is that :

 
 
 
 

691. A gill of Agaricus:

 
 
 
 

692. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

697. In Cycas the fertilization is:

 
 
 
 

698. NBG of Lucknow is now named as:

 
 
 
 

699. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

703. Photosynthetic protists belong to:

 
 
 
 

704. The gametophyte produced by apospory is :

 
 
 
 

705. What are Cyanobacteria?

 
 
 
 

706. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

709. Black rust of wheat is caused by:

 
 
 
 

710. Spores of which plants have chloroplast:

 
 
 
 

711. Meiosis in Ulothrix takes place:

 
 
 
 

712. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

713. Which of the following statements is not correct?

 
 
 
 

714. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

716. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

717. Which causes red tide?

 
 
 
 

718. The first to isolate a plant virus was:

 
 
 
 

719. All protozoans possess:

 
 
 
 

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

 
 
 
 

721. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

728. Mixed cropping helps :

 
 
 
 

729. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

734. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

736. Common phycobiont in a lichen is :

 
 
 
 

737. Usually, bacteria reproduce by:

 
 
 
 

738. Each chloroplast in Spirogyra bears :

 
 
 
 

739. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

741. Ergot of rye is caused by:

 
 
 
 

742. The plants of Funaria grow :

 
 
 
 

743. Pollination drop is:

 
 
 
 

744. What is streptomycin?

 
 
 
 

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

 
 
 
 

746. Chief constituents of bordeaux mixture are :

 
 
 
 

747. Which is an edible fungus?

 
 
 
 

748. In moss, stomata are found:

 
 
 
 

749. Green plants are classified as:

 
 
 
 

750. 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:

 
 
 
 

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

 
 
 
 

752. Mostly type of zygospore in Ulothrix is:

 
 
 
 

753. Citrus canker is caused by :

 
 
 
 

754. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Most common type of conjugation in Spirogyra is :

 
 
 
 

758. Pinus gerardiana is :

 
 
 
 

759. Leprosy is caused by:

 
 
 
 

760. Funaria is a Bryophyta because :

 
 
 
 

761. The tallest moss in the world is :

 
 
 
 

762. The central part of Funaria axis is :

 
 
 
 

763. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

765. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

771. Pteridophyta are also called:

 
 
 
 

772. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

774. Most primitive kind of flower is represented by:

 
 
 
 

775. Yeast belongs to class:

 
 
 
 

776. Lichens reproduce by :

 
 
 
 

777. White rust of crucifers is caused by:

 
 
 
 

778. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

782. Which is a redwood tree?

 
 
 
 

783. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

785. Late blight of potato is caused by:

 
 
 
 

786. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

788. Bacteriophages have been used as:

 
 
 
 

789. Smut of maize is caused by :

 
 
 
 

790. Fern phloem lacks:

 
 
 
 

791. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. Streptomycin is obtained from:

 
 
 
 

795. In dinoflagellates, the two flagella are:

 
 
 
 

796. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

799. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

801. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

811.

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

 
 
 
 

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

 
 
 
 

814. Choose the correct statement about Spirogyra:

 
 
 
 

815. Bacteria are placed under:

 
 
 
 

816. Heterotrichous habit means :

 
 
 
 

817. Lichens reproduce by :

 
 
 
 

818. The fern plant is:

 
 
 
 

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

 
 
 
 

820. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

823. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

826. The term stele was given by:

 
 
 
 

827. The most primitive vascular plants is:

 
 
 
 

828. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

831. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

833. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

835. Lichens are pioneers of vegetation in a :

 
 
 
 

836. The spermatozoids of Cycas are :

 
 
 
 

837. Lichens are the indicator of pollution :

 
 
 
 

838. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

841. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

843. Germination of the seed of Pinus is :

 
 
 
 

844. Plasmids are:

 
 
 
 

845. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

847. Zoogametes are not found in:

 
 
 
 

848. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

850. Which fixes atmospheric nitrogen?

 
 
 
 

851. Antibiotic has been extracted from :

 
 
 
 

852. The chloroplast in Ulothrix is :

 
 
 
 

853. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

855. The microsporophylls on the cone of Cycas are :

 
 
 
 

856. Lichens are indicators of :

 
 
 
 

857. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

859. Ulothrix produces :

 
 
 
 

860. In Cycas microsporangia are borne on:

 
 
 
 

861. Reserve food in Euglena is:

 
 
 
 

862. The rhizoids of Funaria are :

 
 
 
 

863. The chief characteristic of class Ascomycetes is:

 
 
 
 

864. Which of the following is a monocot?