Quiz_Random

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

 
 
 
 

2. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Which of the following have a prokaryotic cell?

 
 
 
 

6. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

7. The sporangium of fern contains nearly:

 
 
 
 

8. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

10.

11. The role of meiosis is for:

 
 
 
 

12. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

14. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

18. Fruits are not found in :

 
 
 
 

19. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

21. Soil fertility is lost by the activities of:

 
 
 
 

22.

23. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

29. The chloroplast of Chlamydomonas are:

 
 
 
 

30. The upper region of moss capsule is :

 
 
 
 

31. The middle sterile part of capsule is called:

 
 
 
 

32. Who discovered cyanophages?

 
 
 
 

33. In dinoflagellates, the two flagella are:

 
 
 
 

34. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

36. Fruits are not found in:

 
 
 
 

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

 
 
 
 

38. Some bacteria cannot be killed easily because of:

 
 
 
 

39. Nitrifying bacteria play an important role by converting:

 
 
 
 

40. The development of Selaginella embryo is:

 
 
 
 

41. Mostly type of zygospore in Ulothrix is:

 
 
 
 

42. Vegetative reproduction in Cycas is by means of :

 
 
 
 

43. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

45. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. What is the role of nitrifying bacteria?

 
 
 
 

49. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

51. Diploxylic vascular bundles are found in:

 
 
 
 

52. Pasteurization of milk involves heating for:

 
 
 
 

53. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

55. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Most common type of conjugation in Spirogyra is :

 
 
 
 

59. Facultative parasite is:

 
 
 
 

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

 
 
 
 

61. Which of the following are included in Tracheophyta?

 
 
 
 

62. Sporophyte of Funaria is :

 
 
 
 

63. Red rot of sugarcane is caused by :

 
 
 
 

64. The fungi used as food are:

 
 
 
 

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

 
 
 
 

66. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

68. 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?

 
 
 
 

69. 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:

 
 
 
 

70. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

72. Nannandria are:

 
 
 
 

73. The two conjugating gametangia of Rhizopus are:

 
 
 
 

74. Lichens reproduce by :

 
 
 
 

75. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

77. Bacteria are placed under:

 
 
 
 

78. Amoeba is a member of the phylum:

 
 
 
 

79. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. In angiosperms double fertilization represents:

 
 
 
 

83. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

85. Cycas revoluta is widely grown as :

 
 
 
 

86. The orders generally have the uniform endings:

 
 
 
 

87. Pteridophyta are also called:

 
 
 
 

88. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. Black rust of wheat is caused by:

 
 
 
 

93. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. Where does meiosis occur in yeast?

 
 
 
 

99. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

103. The megaspore of Selaginella on germination produces:

 
 
 
 

104. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

106. The largest alga is:

 
 
 
 

107. Which of the following is a monocot?

 
 
 
 

108. Chemosynthetic bacteria are:

 
 
 
 

109.

110. Which of the following is a heterosporous pteridophyte?

 
 
 
 

111. Protozoans are considered animals because these are:

 
 
 
 

112. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

114. Liverworts are included in :

 
 
 
 

115. LSD is:

 
 
 
 

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

 
 
 
 

117. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

119. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

121. Chief constituents of bordeaux mixture are :

 
 
 
 

122. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

124. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

125. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

127. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

130. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

135. The megasporangium of Selaginella is:

 
 
 
 

136. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

138. The seedless plants which possess vascular tissues are:

 
 
 
 

139. Mucilaginous canals in Cycas are found in :

 
 
 
 

140. In Gymnocarpeae the fruiting body is :

 
 
 
 

141. The smallest unit of classification is:

 
 
 
 

142. Which of the following lichens is harmful?

 
 
 
 

143. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

145. In a diplontic life cycle:

 
 
 
 

146. Late blight of potato is caused by :

 
 
 
 

147. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

151. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

154. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

160. Meristele of fern is:

 
 
 
 

161. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

163. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

165. Ovary is absent in:

 
 
 
 

166. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

170. The order generally ends with:

 
 
 
 

171. Penicillin was discovered by:

 
 
 
 

172. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

174. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

180. The lambda phase is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. Pneumonia is caused by:

 
 
 
 

185. Polystelic condition is found in:

 
 
 
 

186. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

188. The antherozoids of Funaria are :

 
 
 
 

189. Fertility of the soil is increased by:

 
 
 
 

190. Cryptogams include :

 
 
 
 

191. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

193. 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:

 
 
 
 

194. Redness of red sea is due to :

 
 
 
 

195. 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:

 
 
 
 

196. Vascular tissue is found in :

 
 
 
 

197. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

199. Fern prothallus is:

 
 
 
 

200. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

208. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

211. Economic importance of bacteria lies in their being:

 
 
 
 

212. Photosynthetic bacteria have:

 
 
 
 

213. In moss, stomata are found:

 
 
 
 

214. Cleavage polyembryony is found in :

 
 
 
 

215. Which group of algae have an incipient nucleus?

 
 
 
 

216. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

218. The most primitive vascular plants is:

 
 
 
 

219. Funaria is :

 
 
 
 

220. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

222. Quarantine regulations are concerned with:

 
 
 
 

223. Photosynthetic protists belong to:

 
 
 
 

224. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

228. Mycoplasma was discovered by:

 
 
 
 

229. In moss, peristomial teeth are:

 
 
 
 

230. Winged seeds are found in :

 
 
 
 

231. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

234. Cycas is :

 
 
 
 

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

 
 
 
 

236. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

239. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

241. Fairy ring is the name given to:

 
 
 
 

242. What is streptomycin?

 
 
 
 

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

 
 
 
 

244. The leaves of Funaria are :

 
 
 
 

245. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. Ulothrix produces :

 
 
 
 

249. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

250. Lichens are ecologically important because :

 
 
 
 

251. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

253. The DNA of E coli is:

 
 
 
 

254. Which is an edible fungus?

 
 
 
 

255. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

257. Most primitive embryophytes are placed in :

 
 
 
 

258. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

260. 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:

 
 
 
 

261. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

263. Pollination drop is:

 
 
 
 

264. Standard size of a herbarium sheet is:

 
 
 
 

265. Late blight of potato is caused by:

 
 
 
 

266. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

268. Viruses have:

 
 
 
 

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

 
 
 
 

270. Black rust of wheat is caused by:

 
 
 
 

271. Which class of Protozoa includes all parasitic forms?

 
 
 
 

272. Circular DNA is seen in:

 
 
 
 

273. What is absent in Deuteromycetes?

 
 
 
 

274. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

277. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

279. Which lichen is called Reindeer moss?

 
 
 
 

280. Iodine is obtained from:

 
 
 
 

281. Yeast is a source of:

 
 
 
 

282. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

283. Gymnosperms could also be called as:

 
 
 
 

284. Heterospory and ligulate leaves are a feature of:

 
 
 
 

285. 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?

 
 
 
 

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

 
 
 
 

287. Zoogametes are not found in:

 
 
 
 

288. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

291. White rust of crucifers is caused by:

 
 
 
 

292. Mycoplasma are:

 
 
 
 

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

 
 
 
 

294. The zygospore in Rhizopus on germination forms:

 
 
 
 

295. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

301. Agar-agar is obtained from:

 
 
 
 

302. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

305. The mode of nutrition of bacteria is usually:

 
 
 
 

306. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

308. Which have the largest antherozoid?

 
 
 
 

309. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

311. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

313. Typhoid in man is caused by:

 
 
 
 

314. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

316. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

322. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

324. Bryophyta have been placed in cryptogams because:

 
 
 
 

325. Total parasites belong to:

 
 
 
 

326. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

328. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

331. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

332. In moss, calyptra is formed from:

 
 
 
 

333. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

335. Fruits are not found in Cycas because:

 
 
 
 

336. Siphonogamy is found in:

 
 
 
 

337. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

340. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

342. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

344. Placenta in fern is:

 
 
 
 

345. The roots of Cycas are :

 
 
 
 

346. E coli is a:

 
 
 
 

347. Water-net is the name of:

 
 
 
 

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

 
 
 
 

349. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

354. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

359. The disease apple scab is caused by:

 
 
 
 

360. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

365. The archegonia of Selaginella are differentiated by:

 
 
 
 

366. Sporophyte of fern is:

 
 
 
 

367. Ethylene oxide is widely used to:

 
 
 
 

368. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

371. In moss, sporogenous tissue arises from:

 
 
 
 

372. The group algae possesses representatives belonging to kingdom:

 
 
 
 

373. Antibiotics cure the disease by:

 
 
 
 

374. Each chloroplast in Spirogyra bears :

 
 
 
 

375. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

377. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

381. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

385. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

386. Lichens are indicators of :

 
 
 
 

387. Green plants are classified as :

 
 
 
 

388. Cap cells are found in the filament of:

 
 
 
 

389. Which causes red tide?

 
 
 
 

390. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

393. Bivalved siliceous shell or frustule occur in:

 
 
 
 

394. Parmelia belongs to :

 
 
 
 

395. Green plants are classified as:

 
 
 
 

396. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

398. The root nodules of leguminous plants contain:

 
 
 
 

399. Funaria are commonly found :

 
 
 
 

400. Who named prion?

 
 
 
 

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

 
 
 
 

402. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

404. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. Lichens reproduce by :

 
 
 
 

408. Viruses are considered to be:

 
 
 
 

409. Absorptive nutrition is:

 
 
 
 

410. Most of the algae are :

 
 
 
 

411. Pythium debaryanum is the causative agent of:

 
 
 
 

412. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

413. The antibiotic is obtained from:

 
 
 
 

414. The mycelium of Rhizopus is:

 
 
 
 

415. Saccharomyces is used in:

 
 
 
 

416. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

418. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

422. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

424. The genetic material of poxvirus is:

 
 
 
 

425. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

429. Synzoospore is produced in:

 
 
 
 

430. Tautonyms are illegitimate in:

 
 
 
 

431. 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?

 
 
 
 

432. The archegonia in Selaginella develop on:

 
 
 
 

433. Cyanophage is a virus that attacks:

 
 
 
 

434. Broad spectrum antibiotic is, which:

 
 
 
 

435. Virion refers to:

 
 
 
 

436. Ergot of rye is caused by:

 
 
 
 

437. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

441. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

443. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

445. Rhizophore of Selaginella is:

 
 
 
 

446. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

448. Winged pollen grains are found in :

 
 
 
 

449. Desired type of Cycas can be grown by:

 
 
 
 

450. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

454. The tree fern is:

 
 
 
 

455. Which bacteria convert nitrate into nitrogen?

 
 
 
 

456. Ovules are not found enclosed in ovary in :

 
 
 
 

457. Club moss is the common name of :

 
 
 
 

458. Male gametophyte of Selaginella is found:

 
 
 
 

459. In Cycas the fertilization is:

 
 
 
 

460. Yeast grows more rapidly in:

 
 
 
 

461. Mycoplasmas are not viruses in nature because:

 
 
 
 

462. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

469. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

470.

 

471. In Funaria, calyptra is derived from :

 
 
 
 

472. Select the wrong statement:

 
 
 
 

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

 
 
 
 

474. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

477. The source of litmus is :

 
 
 
 

478. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

480. Which statement is wrong in regard to bacteria?

 
 
 
 

481. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

487. Downy mildew disease is caused by :

 
 
 
 

488. Which is not found in bacteria?

 
 
 
 

489. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

492. Isomorphic type alternation of generation is found in:

 
 
 
 

493. Germination of the seed of Pinus is :

 
 
 
 

494. Enzymes are absent in:

 
 
 
 

495. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

497. The sporophyte of Riccia is :

 
 
 
 

498. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

500. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

502. Viroids have:

 
 
 
 

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

 
 
 
 

504. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. In Selaginella, the microsporangia are:

 
 
 
 

508. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

510. Diphtheria is caused by:

 
 
 
 

511. In Pteris, the roots are:

 
 
 
 

512. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. All algae have:

 
 
 
 

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

 
 
 
 

517. Most of the lichens are composed of :

 
 
 
 

518. Lichens show :

 
 
 
 

519. The gametophyte of fern is as:

 
 
 
 

520. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

524. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

526. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

527. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

529. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. Pinus microsporophyll bears:

 
 
 
 

533. How is moss different from fern?

 
 
 
 

534. Cycas plant in appearance resembles :

 
 
 
 

535. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

537. The rhizoids of Funaria are :

 
 
 
 

538. Funaria can be differentiated from Cycas :

 
 
 
 

539. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. Which is a fungicide?

 
 
 
 

544. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

546. The sporophyte of Riccia is represented by :

 
 
 
 

547. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

552. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

555. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

560. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

563. Roots are absent in :

 
 
 
 

564. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. The Rhizopus is:

 
 
 
 

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

 
 
 
 

570. The central part of Funaria axis is :

 
 
 
 

571. Which is not true for Escherichia coli?

 
 
 
 

572. Aflatoxin is produced as a product in :

 
 
 
 

573. Which is a redwood tree?

 
 
 
 

574. Bryophyta have a special character from other plants:

 
 
 
 

575. Generic name of mango is:

 
 
 
 

576. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

578. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

582. Pinus is:

 
 
 
 

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

 
 
 
 

584. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

586. Sexual reproduction of lichen is due to :

 
 
 
 

587. Usually, bacteria reproduce by:

 
 
 
 

588. Kuru, a human disease is caused by:

 
 
 
 

589. Most resistant spore in bacteria is:

 
 
 
 

590. Interferon is a:

 
 
 
 

591. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

593. Bacteria differ from viruses in being sensitive to:

 
 
 
 

594. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

598. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

600. Maximum diversity of life forms occurs in :

 
 
 
 

601. Which of the following are included in Tracheophyta?

 
 
 
 

602. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

605. Which fixes atmospheric nitrogen?

 
 
 
 

606. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

608. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

610. The fungi are usually:

 
 
 
 

611. All protozoans possess:

 
 
 
 

612. In Gymnosperms endosperm is a:

 
 
 
 

613. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

620. Ovules are not found enclosed in ovary of:

 
 
 
 

621. Protistan algae obtain their food as:

 
 
 
 

622. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

624. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

628. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

630. 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:

 
 
 
 

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

 
 
 
 

632. Lichens are the indicator of pollution :

 
 
 
 

633. Bacteriophages have been used as:

 
 
 
 

634. The coralloid roots are :

 
 
 
 

635. The ferns are usually found:

 
 
 
 

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

 
 
 
 

637. Red rot of sugarcane is caused by:

 
 
 
 

638. Sexual reproduction in Rhizopus is by:

 
 
 
 

639. Disease resistant plant varieties can be produced by :

 
 
 
 

640. Citrus canker is caused by:

 
 
 
 

641. Which of the following statement is correct?

 
 
 
 

642. Embryophyta includes :

 
 
 
 

643. Gram stain is used to:

 
 
 
 

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

 
 
 
 

645. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

647. The sexual reproductive organs in Rhizopus are:

 
 
 
 

648. Among the algae kelps are :

 
 
 
 

649. The gametophyte produced by apospory is :

 
 
 
 

650. Cyathia is characterized by:

 
 
 
 

651. What is mycorrhiza?

 
 
 
 

652. Which part of Riccia bears nurse cells?

 
 
 
 

653. Vascular cryptogams is the term used for:

 
 
 
 

654. Pollination in Cycas takes place by :

 
 
 
 

655. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. Bacteria are considered to be plants because they:

 
 
 
 

659. Transfusion tissue is present in the leaflet of:

 
 
 
 

660. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

662. Clostridium can:

 
 
 
 

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

 
 
 
 

664. Embryophyta includes:

 
 
 
 

665. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

670. The spur of Pinus roxburghii has :

 
 
 
 

671. Select the correct statement: (NEET 2016)

 
 
 
 

672. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

675. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

677. Pythium debaryanum is the causative agent of:

 
 
 
 

678. Plasmids are:

 
 
 
 

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

 
 
 
 

680. Citrus canker is caused by :

 
 
 
 

681. Fern phloem lacks:

 
 
 
 

682. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

684. Which is a tautonym?

 
 
 
 

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

 
 
 
 

686. Asexual reproductive body of Volvox is called:

 
 
 
 

687. Most primitive group of vascular plants are:

 
 
 
 

688. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

690. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

694. Bacteria growing on synthetic medium are called:

 
 
 
 

695. The flagella of Chlamydomonas are:

 
 
 
 

696. Cellular slime mold is:

 
 
 
 

697. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

700. The term stele was given by:

 
 
 
 

701. In binomial system most of the words are:

 
 
 
 

702. Helotism word is used for the symbiosis between :

 
 
 
 

703. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

705. Botulism is a:

 
 
 
 

706. Botulinum toxin effects:

 
 
 
 

707. What are plasmids?

 
 
 
 

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

 
 
 
 

709. Majority of lichens are :

 
 
 
 

710. Proembryo in Pinus is :

 
 
 
 

711. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

716. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. Milk is converted to curd by:

 
 
 
 

720. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

722. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

724. Psilotum is:

 
 
 
 

725. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

728. Which of the following statements is not correct?

 
 
 
 

729. Sleeping sickness disease in man is caused by:

 
 
 
 

730. The sporangia of Selaginella are attached:

 
 
 
 

731. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

734. Reproduction in Rhizopus is:

 
 
 
 

735. Which of the following are absent in Mycoplasma?

 
 
 
 

736. Seeds are characteristically found in:

 
 
 
 

737. Indusium in Dryopteris is:

 
 
 
 

738. The nucleus of bacteria is:

 
 
 
 

739. 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:

 
 
 
 

740. Cycas is similar to a mustard plant :

 
 
 
 

741. The gametophyte of fern bears:

 
 
 
 

742. Who discovered heterothallism in fungi?

 
 
 
 

743. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

747. Which of the following is true for Selaginella?

 
 
 
 

748. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

749. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. The teeth of peristome of Funaria are :

 
 
 
 

753. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. TMV was isolated in crystalline form by:

 
 
 
 

758. Which of the following is a parasitic algae?

 
 
 
 

759. Chemosynthetic bacteria are:

 
 
 
 

760. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

762. Pteridophytes are also known as :

 
 
 
 

763. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

766. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

767. Vascular cryptogam is the term used for :

 
 
 
 

768. Pinus gerardiana is :

 
 
 
 

769. Rhizopus belongs to:

 
 
 
 

770. Which of the following have algal zone?

 
 
 
 

771. Oswald Tippo’s classification is:

 
 
 
 

772. 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:

 
 
 
 

773. Ginkgo biloba is a:

 
 
 
 

774. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

776. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

778. Lichen show :

 
 
 
 

779. Spermatophyta are characterized by producing:

 
 
 
 

780. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

781. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. Ergot is obtained from :

 
 
 
 

785. All archaebacteria lack:

 
 
 
 

786. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

788. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

790. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

793. Who discovered streptomycin?

 
 
 
 

794. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. Which is the correct statement about Selaginella?

 
 
 
 

798. Rice, pea, potato are :

 
 
 
 

799. Which condition is found in Cycas?

 
 
 
 

800. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

802. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

804. 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?

 
 
 
 

805. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

807. The plants of Funaria grow :

 
 
 
 

808. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

811. Rhizopus and yeast are usually:

 
 
 
 

812. Funaria is a Bryophyta because :

 
 
 
 

813. Which of the following is true for viruses?

 
 
 
 

814. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

816. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

819. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

822. Bacteria which are spherical are called:

 
 
 
 

823. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

825. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

827. Gametophyte is the main plant body in :

 
 
 
 

828. Lichens are pioneers of vegetation in a :

 
 
 
 

829. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

831. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

835. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

842. Which of the following shows heterotrichous habit?

 
 
 
 

843. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

845. The similarity between cyanobacteria and bacteria:

 
 
 
 

846. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

848. Cell walls of Gram-positive bacteria contain:

 
 
 
 

849. Saccharomyces is well known for:

 
 
 
 

850. A gill of Agaricus:

 
 
 
 

851. Lichens form the first community in

 
 
 
 

852. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

854. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

857. Centric discoid form of diatom is:

 
 
 
 

858. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

860. The fern plant is:

 
 
 
 

861. Longest known virus is:

 
 
 
 

862. Streptomycin is obtained from:

 
 
 
 

863. The tallest moss in the world is :

 
 
 
 

864. Male gametes in Dryopteris are: