Quiz_Random

1. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

3. Spermatophyta are characterized by producing:

 
 
 
 

4. Most of the algae are :

 
 
 
 

5. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. How is moss different from fern?

 
 
 
 

9. Synzoospore is produced in:

 
 
 
 

10. The zygospore in Rhizopus on germination forms:

 
 
 
 

11. Which causes red tide?

 
 
 
 

12. Vegetative reproduction in Cycas is by means of :

 
 
 
 

13. Ethylene oxide is widely used to:

 
 
 
 

14. Which of the following are included in Tracheophyta?

 
 
 
 

15. Which is not found in bacteria?

 
 
 
 

16. The sporangiophores in Rhizopus are:

 
 
 
 

17. What are Cyanobacteria?

 
 
 
 

18. Cycas is :

 
 
 
 

19. Aflatoxin is produced as a product in :

 
 
 
 

20. Chemosynthetic bacteria are:

 
 
 
 

21. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

23. What is special feature of fern archegonia?

 
 
 
 

24. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

26. Water bloom is generally caused by :

 
 
 
 

27. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

28. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

30. Pasteur is famous for his:

 
 
 
 

31. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

36. Winged seeds are found in :

 
 
 
 

37. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

39. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

41. Yeast grows more rapidly in:

 
 
 
 

42. Which of the following are absent in Mycoplasma?

 
 
 
 

43. E coli is a:

 
 
 
 

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

 
 
 
 

45. 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:

 
 
 
 

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

 
 
 
 

47. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

49. Special feature of pollen grains of Pinus is :

 
 
 
 

50. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

52. Heterospory and ligulate leaves are a feature of:

 
 
 
 

53. The lambda phase is a:

 
 
 
 

54. In Cycas:

 
 
 
 

55. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. True sexuality is not found in:

 
 
 
 

62. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Bacteria are found everywhere, except:

 
 
 
 

66. Roots are absent in :

 
 
 
 

67. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

69. In tracheophyta:

 
 
 
 

70. Winged pollen grains are found in :

 
 
 
 

71. Psilotum is:

 
 
 
 

72. 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:

 
 
 
 

73. In angiosperms double fertilization represents:

 
 
 
 

74. Sexual reproduction in Rhizopus is by:

 
 
 
 

75. Cryptogams include :

 
 
 
 

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

 
 
 
 

77. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

79. In a bacteriophage, DNA is present in:

 
 
 
 

80. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

82. The vascular bundles of Cycas stem are :

 
 
 
 

83. Ulothrix produces :

 
 
 
 

84. The rhizoids of Funaria are :

 
 
 
 

85. Genetic material of TMV is:

 
 
 
 

86. Quarantine regulations are concerned with:

 
 
 
 

87. Fruits are not found in:

 
 
 
 

88. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Linnaeus is credited with introducing:

 
 
 
 

92. Red rot of sugarcane is caused by :

 
 
 
 

93. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

95. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

96. Citrus canker is caused by :

 
 
 
 

97. Which is a fungicide?

 
 
 
 

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

 
 
 
 

99. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

101. The first to isolate a plant virus was:

 
 
 
 

102. The order generally ends with:

 
 
 
 

103. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

106. Mixed cropping helps :

 
 
 
 

107. Cyathia is characterized by:

 
 
 
 

108. Green plants are classified as:

 
 
 
 

109. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Bivalved siliceous shell or frustule occur in:

 
 
 
 

113. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

117. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

119. Rhizopus belongs to:

 
 
 
 

120. 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?

 
 
 
 

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

 
 
 
 

122. Nitrogen-fixing bacteria may be located:

 
 
 
 

123. The plants of Funaria grow :

 
 
 
 

124. Which statement is wrong in regard to bacteria?

 
 
 
 

125. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

127. Lichen show :

 
 
 
 

128. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

130. Multicellular and jacketed sex organs are found in :

 
 
 
 

131. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

134. Penicillin was discovered by:

 
 
 
 

135. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

137. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

139. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

142. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

146. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

150. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

152. Why is Cycas called a living fossil?

 
 
 
 

153. Gametophyte is the main plant body in :

 
 
 
 

154. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

164. What is a vector?

 
 
 
 

165. Facultative parasite is:

 
 
 
 

166. Which of the following are included in Tracheophyta?

 
 
 
 

167. Majority of lichens are :

 
 
 
 

168. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

170. Who named prion?

 
 
 
 

171. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

173. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

175. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

177. Soil fertility is lost by the activities of:

 
 
 
 

178. Citrus canker is caused by:

 
 
 
 

179. Bentham and Hooker placed gymnosperms:

 
 
 
 

180. Pinus microsporophyll bears:

 
 
 
 

181. Anoxygenic photosynthesis occurs in:

 
 
 
 

182.

 

183. The chloroplast in Ulothrix is :

 
 
 
 

184.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Select the wrong statement:

 
 
 
 

190. Which of the following is a monocot?

 
 
 
 

191. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

193. Which of the following does not contain chlorophyll?

 
 
 
 

194. Which is an exception to cell theory?

 
 
 
 

195. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

197. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. The ferns are usually found:

 
 
 
 

205. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

207. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

209. Botulism is a:

 
 
 
 

210. Lichens reproduce by :

 
 
 
 

211. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

213. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

217. The smallest bacterium is:

 
 
 
 

218. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

221. The role of meiosis is for:

 
 
 
 

222. 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:

 
 
 
 

223. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

226. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

228. Cycas revoluta is widely grown as :

 
 
 
 

229. Late blight of potato is caused by:

 
 
 
 

230. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

232. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. Which group of algae have an incipient nucleus?

 
 
 
 

236. Some biologists have used the term Mycetozoa for:

 
 
 
 

237. The upper region of moss capsule is :

 
 
 
 

238. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

240. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

245. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

246. Cell walls of Gram-positive bacteria contain:

 
 
 
 

247. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

249. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

251. Methanogens belong to:

 
 
 
 

252. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

256. Yeast is a source of:

 
 
 
 

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

 
 
 
 

258. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. 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?

 
 
 
 

264. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. Choose the correct statement about Spirogyra:

 
 
 
 

268. In moss, reduction division occurs in :

 
 
 
 

269. The young leaves of Cycas have :

 
 
 
 

270. The largest alga is:

 
 
 
 

271. Triple antigen injection or vaccine are for:

 
 
 
 

272. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

276. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

278. The smallest unit of classification is:

 
 
 
 

279. In moss, stomata are found:

 
 
 
 

280. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

282. Pinus is:

 
 
 
 

283. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

286. Placenta in fern is:

 
 
 
 

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

 
 
 
 

288. Bacteria were first discovered by:

 
 
 
 

289. The term stele was given by:

 
 
 
 

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

 
 
 
 

291. Mycoplasmas are not viruses in nature because:

 
 
 
 

292. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

293. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

295. Vascular cryptogams is the term used for:

 
 
 
 

296. What is streptomycin?

 
 
 
 

297. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

299. Which of the following is a parasitic algae?

 
 
 
 

300. Selaginella differs from Moss in having:

 
 
 
 

301. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

304. Embryophyta includes:

 
 
 
 

305. In moss, peristomial teeth are:

 
 
 
 

306. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

308. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

310. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. Most of the lichens are composed of :

 
 
 
 

316. What are plasmids?

 
 
 
 

317. The fungi used as food are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

320. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

323. Agar-agar is obtained from:

 
 
 
 

324. Ovary is absent in:

 
 
 
 

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

 
 
 
 

326. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

328. In Herpes virus DNA is:

 
 
 
 

329. The microsporophylls on the cone of Cycas are :

 
 
 
 

330. The root nodules of leguminous plants contain:

 
 
 
 

331. Ovules are not found enclosed in ovary in :

 
 
 
 

332. Protozoans are considered animals because these are:

 
 
 
 

333. Tautonyms are illegitimate in:

 
 
 
 

334. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

336. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

338. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

340. Clostridium can:

 
 
 
 

341. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

343. The megasporangium of Selaginella is:

 
 
 
 

344. Acellular slime mold is/are:

 
 
 
 

345. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

347. Nannandria are:

 
 
 
 

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

 
 
 
 

349. The zoospores of Ulothrix are :

 
 
 
 

350. Pollination in Pinus is :

 
 
 
 

351. The genetic material of poxvirus is:

 
 
 
 

352. Bryophyta have a special character from other plants:

 
 
 
 

353. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

356. Male gametes in Dryopteris are:

 
 
 
 

357. Seeds are characteristically found in :

 
 
 
 

358. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

360. Mycoplasma are:

 
 
 
 

361. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. The seedless plants which possess vascular tissues are:

 
 
 
 

365. Among the algae kelps are :

 
 
 
 

366. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

370. Funaria is :

 
 
 
 

371. Cycas is different from mango in :

 
 
 
 

372. The antherozoids of Funaria are :

 
 
 
 

373. The spermatozoids of Cycas are :

 
 
 
 

374. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

376. Most common type of conjugation in Spirogyra is :

 
 
 
 

377. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

384. Proembryo in Pinus is :

 
 
 
 

385. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

386. Which class of Protozoa includes all parasitic forms?

 
 
 
 

387. Seeds are characteristically found in:

 
 
 
 

388. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

392. Lichens show :

 
 
 
 

393. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

396. Which lichen is called Reindeer moss?

 
 
 
 

397. LSD is:

 
 
 
 

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

 
 
 
 

399. The alga, Spirogyra are found in :

 
 
 
 

400. Metulae are found in:

 
 
 
 

401. The tree fern is:

 
 
 
 

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

 
 
 
 

403. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

405. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

408. Embryophyta includes :

 
 
 
 

409. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

411. Fertility of the soil is increased by:

 
 
 
 

412. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

413.

414. The orders generally have the uniform endings:

 
 
 
 

415. To which country Antony van Leeuwenhoek belong?

 
 
 
 

416. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

419. 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:

 
 
 
 

420. First animal pathogenic virus was discovered by:

 
 
 
 

421. Most primitive kind of flower is represented by:

 
 
 
 

422. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

423. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

426. Photoautotrophic bacteria have:

 
 
 
 

427. In Funaria :

 
 
 
 

428. An alga which is rich in proteins:

 
 
 
 

429. Rhizopus and yeast are usually:

 
 
 
 

430. Funaria can be differentiated from Cycas :

 
 
 
 

431. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

433. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

436. Some bacteria cannot be killed easily because of:

 
 
 
 

437. The middle sterile part of capsule is called:

 
 
 
 

438. What is mycorrhiza?

 
 
 
 

439. Most primitive embryophytes are placed in :

 
 
 
 

440. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

442. Chemosynthetic bacteria are:

 
 
 
 

443. Viruses have:

 
 
 
 

444. All protozoans possess:

 
 
 
 

445. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

450. In Funaria, calyptra is derived from :

 
 
 
 

451. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

454. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

455. Longest known virus is:

 
 
 
 

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

 
 
 
 

457. Most resistant spore in bacteria is:

 
 
 
 

458. Liverworts are included in :

 
 
 
 

459. Meiosis in Ulothrix takes place:

 
 
 
 

460. Nitrifying bacteria play an important role by converting:

 
 
 
 

461. Which of the following lichens is harmful?

 
 
 
 

462. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

463. Penicillin is obtained from:

 
 
 
 

464. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

466. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

468. Sexual reproduction of lichen is due to :

 
 
 
 

469. The development of Selaginella embryo is:

 
 
 
 

470. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

472. Red rot of sugarcane is caused by :

 
 
 
 

473. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478. 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:

 
 
 
 

479. The chromosomal number in:

 
 
 
 

480. The source of litmus is :

 
 
 
 

481. Mycoplasma is different from bacteria due to:

 
 
 
 

482. Heterocysts are found in :

 
 
 
 

483. In moss, conducting tissue is made up of

 
 
 
 

484. Cellular slime mold is:

 
 
 
 

485. Absorptive nutrition is:

 
 
 
 

486. Aflatoxin is produced by:

 
 
 
 

487. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

488. Germination of the seed of Pinus is :

 
 
 
 

489. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

491. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

493. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

495. Viroids have:

 
 
 
 

496. Coenogamete is found in:

 
 
 
 

497. The Rhizopus is:

 
 
 
 

498. Streptomycin is obtained from:

 
 
 
 

499. Most appropriate word for protozoans is:

 
 
 
 

500. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

502. The fungi that grow on wood are called:

 
 
 
 

503. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

508. Mucilaginous canals in Cycas are found in :

 
 
 
 

509. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

511. Sleeping sickness disease in man is caused by:

 
 
 
 

512. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

514. The archegonia in Selaginella develop on:

 
 
 
 

515. The chloroplast of Chlamydomonas are:

 
 
 
 

516. Fruits are not found in Cycas because:

 
 
 
 

517. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

519. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

521. Ovary is absent in :

 
 
 
 

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

 
 
 
 

523. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

525. Cycas is similar to a mustard plant :

 
 
 
 

526. Kuru, a human disease is caused by:

 
 
 
 

527. Protistan algae obtain their food as:

 
 
 
 

528. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

530. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

532. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

534. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

539. 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:

 
 
 
 

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

 
 
 
 

541. Diphtheria is caused by:

 
 
 
 

542. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

545. The chief characteristic of bryophyta is that :

 
 
 
 

546. Acetobacter is useful in:

 
 
 
 

547. 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?

 
 
 
 

548. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

550. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

553. Infective part of virus was discovered by:

 
 
 
 

554. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

555. Wine turns sour because of:

 
 
 
 

556. Photosynthetic protists belong to:

 
 
 
 

557. Generic name of mango is:

 
 
 
 

558. Detailed study of bacteriophage was made by:

 
 
 
 

559. The disease symptom necrosis refers to :

 
 
 
 

560. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

562. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

564. Diploxylic vascular bundles are found in:

 
 
 
 

565. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

566. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

568. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

570. Oswald Tippo’s classification was based on :

 
 
 
 

571. The prothallus of fern is:

 
 
 
 

572. Reproduction in Cycas takes place by :

 
 
 
 

573. Fern prothallus is:

 
 
 
 

574. Virion refers to:

 
 
 
 

575. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

577. Some diseases caused by bacteria are:

 
 
 
 

578. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

581. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

584. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

586. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

589. Which bacteria convert nitrate into nitrogen?

 
 
 
 

590. In binomial system most of the words are:

 
 
 
 

591. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

593. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

595. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

599. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. The chief characteristic of class Ascomycetes is:

 
 
 
 

603. The mode of nutrition of bacteria is usually:

 
 
 
 

604. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

608. White rust of crucifers is caused by:

 
 
 
 

609. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

613. The similarity between cyanobacteria and bacteria:

 
 
 
 

614. Desired type of Cycas can be grown by:

 
 
 
 

615. What is the role of nitrifying bacteria?

 
 
 
 

616. Bacteria growing on synthetic medium are called:

 
 
 
 

617. The archegonia of Selaginella are differentiated by:

 
 
 
 

618. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

620. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

624. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

626. Lichens reproduce by :

 
 
 
 

627. Vascular tissue is found in :

 
 
 
 

628. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

630. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

632. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. The largest known bacterium is:

 
 
 
 

637. Black rust of wheat is caused by:

 
 
 
 

638. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

640. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

646. Halophiles are the bacteria that require for growth:

 
 
 
 

647. Discovery of penicillin was based on:

 
 
 
 

648. Where does meiosis occur in yeast?

 
 
 
 

649. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

652. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

654. Which one of the following is a monocot?

 
 
 
 

655. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

660. Plasmids are:

 
 
 
 

661. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

663. The gametophyte of moss has distinct phases :

 
 
 
 

664. The ascus of yeast contains:

 
 
 
 

665. Oswald Tippo’s classification is:

 
 
 
 

666. Meristele of fern is:

 
 
 
 

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

 
 
 
 

668. All archaebacteria lack:

 
 
 
 

669. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

674. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

679. Amoeba is a member of the phylum:

 
 
 
 

680. One of the distinctive feature of Spirogyra is :

 
 
 
 

681. NBG of Lucknow is now named as:

 
 
 
 

682. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

689. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

691. In dinoflagellates, the two flagella are:

 
 
 
 

692. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

694. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

697. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

699. Bacteriophages have been used as:

 
 
 
 

700. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

703. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

705. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

709. The phloem of vascular system of Cycas is :

 
 
 
 

710. Pollination drop is:

 
 
 
 

711. Select the wrong statement:

 
 
 
 

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

 
 
 
 

713. Simple polyembryony is found in :

 
 
 
 

714. Polystelic condition is found in:

 
 
 
 

715. Funaria is :

 
 
 
 

716. Iodine is obtained from:

 
 
 
 

717. Little leaf disease of Brinjal is caused by:

 
 
 
 

718. Cyanophage is a virus that attacks:

 
 
 
 

719. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

721. Mycoplasma are sensitive to:

 
 
 
 

722. Late blight of potato is caused by :

 
 
 
 

723. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

727. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

729. Which one of the following statement is wrong?

 
 
 
 

730. TMV was isolated in crystalline form by:

 
 
 
 

731. Lichens form the first community in

 
 
 
 

732. Climbers are found in genus:

 
 
 
 

733. Fruiting body of lichens is :

 
 
 
 

734. Heterosporous pteridophytes always form:

 
 
 
 

735. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

737. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

739. Green plants are classified as :

 
 
 
 

740. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

741. A gill of Agaricus:

 
 
 
 

742. Which of the following statements is not correct?

 
 
 
 

743. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

746. Rhizoids of Riccia are :

 
 
 
 

747. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

751. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

753. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

758. Chief constituents of bordeaux mixture are :

 
 
 
 

759. The mycelium of Rhizopus is:

 
 
 
 

760. Germ theory of disease was proposed by:

 
 
 
 

761. Each chloroplast in Spirogyra bears :

 
 
 
 

762. Who discovered heterothallism in fungi?

 
 
 
 

763. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

766. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

770. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

772. Banana bunchy top is caused by :

 
 
 
 

773. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

776. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

778. Bacteriophage consists of:

 
 
 
 

779. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

785. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

787. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

789. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

793. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

795.

796. Virus and bacteriophage are made-up of:

 
 
 
 

797. 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:

 
 
 
 

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

 
 
 
 

799. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

801. Which organisms are the oldest life forms?

 
 
 
 

802. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

805. Ovules are not found enclosed in ovary of:

 
 
 
 

806. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

808. In Cycas microsporangia are borne on:

 
 
 
 

809. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

811. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

813. Red rot of sugarcane is caused by:

 
 
 
 

814. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

816. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

819. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

823. Which of the following shows heterotrichous habit?

 
 
 
 

824. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

826. Viruses are considered to be:

 
 
 
 

827. The fungi are mostly:

 
 
 
 

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

 
 
 
 

829. Cycas is:

 
 
 
 

830. The teeth of peristome of Funaria are :

 
 
 
 

831. The lichens growing on rocks are called :

 
 
 
 

832. Maximum diversity of life forms occurs in :

 
 
 
 

833. Iodine is obtained from :

 
 
 
 

834. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

837. Rhizophore of Selaginella is:

 
 
 
 

838. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

840. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. Fern plants are:

 
 
 
 

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

 
 
 
 

845. Lichens are ecologically important because :

 
 
 
 

846. Which of the following have a prokaryotic cell?

 
 
 
 

847. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

849. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

851. The fern plant is:

 
 
 
 

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

 
 
 
 

853. Funaria is a Bryophyta because :

 
 
 
 

854. In moss, calyptra is formed from:

 
 
 
 

855. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

860. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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