Quiz_Random

1. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

3. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

8. Simple polyembryony is found in :

 
 
 
 

9. Spirogyra differs from moss protonema in having :

 
 
 
 

10. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

12. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

14. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

16. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

32. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

33. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

35. The development of sporangium in Selaginella is:

 
 
 
 

36. Citrus canker is caused by:

 
 
 
 

37. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

39. White rust of crucifers is caused by:

 
 
 
 

40. The central part of Funaria axis is :

 
 
 
 

41. Linnaeus is credited with introducing:

 
 
 
 

42. Which is not true for Escherichia coli?

 
 
 
 

43. How is moss different from fern?

 
 
 
 

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

 
 
 
 

45. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

47. The photosynthetic protists are:

 
 
 
 

48. Sporophyte of Funaria is :

 
 
 
 

49. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. In a diplontic life cycle:

 
 
 
 

53. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

55. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

61. Mycoplasma are:

 
 
 
 

62. Mycoplasma was discovered by:

 
 
 
 

63. Longest known virus is:

 
 
 
 

64. Protozoans are considered animals because these are:

 
 
 
 

65. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

67. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

69. The gametophyte of fern is as:

 
 
 
 

70. Sexual reproduction in Rhizopus is by:

 
 
 
 

71. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

73. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

75. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

77. Interferon is a:

 
 
 
 

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

 
 
 
 

79. Pythium debaryanum is the causative agent of:

 
 
 
 

80. The spur of Pinus roxburghii has :

 
 
 
 

81. Which is a tautonym?

 
 
 
 

82. Pinus is:

 
 
 
 

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

 
 
 
 

84. Who discovered cyanophages?

 
 
 
 

85. Psilotum is:

 
 
 
 

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

 
 
 
 

87. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Endemic plants are characterised by their:

 
 
 
 

91. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

93. True sexuality is not found in:

 
 
 
 

94. Sporophyte of fern is:

 
 
 
 

95. Metulae are found in:

 
 
 
 

96. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. Red rot of sugarcane is caused by :

 
 
 
 

102. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

103. Select the wrong statement:

 
 
 
 

104. Pinus microsporophyll bears:

 
 
 
 

105. Gram stain is used to:

 
 
 
 

106. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

108. In moss, sporophyte is formed on:

 
 
 
 

109. The order generally ends with:

 
 
 
 

110. The sporophyte of Riccia is represented by :

 
 
 
 

111. Rhizopus belongs to:

 
 
 
 

112. The two conjugating gametangia of Rhizopus are:

 
 
 
 

113. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. Bacteria differ from viruses in being sensitive to:

 
 
 
 

117. What is special feature of fern archegonia?

 
 
 
 

118. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

120. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

122. Cycas revoluta is widely grown as :

 
 
 
 

123. What are Cyanobacteria?

 
 
 
 

124. Triple antigen injection or vaccine are for:

 
 
 
 

125. The microsporophylls on the cone of Cycas are :

 
 
 
 

126. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

128. Little leaf disease of Brinjal is caused by:

 
 
 
 

129. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

131. Pythium debaryanum is the causative agent of:

 
 
 
 

132. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

134. The gametophyte of fern bears:

 
 
 
 

135. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

137. Cycas plant in appearance resembles :

 
 
 
 

138. The disease symptom necrosis refers to :

 
 
 
 

139. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

140. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

142. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

146. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

147. Which of the following statement is correct?

 
 
 
 

148. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

150. The ferns are usually found:

 
 
 
 

151. The roots of Cycas are :

 
 
 
 

152. The leaf of Cycas shows:

 
 
 
 

153. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. Smallpox is caused by:

 
 
 
 

158. Which part of Riccia bears nurse cells?

 
 
 
 

159. The lambda phase is a:

 
 
 
 

160. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

163. The sexual reproductive organs in Rhizopus are:

 
 
 
 

164. Which of the following is a heterosporous pteridophyte?

 
 
 
 

165. Bacteria which are spherical are called:

 
 
 
 

166. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

167. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

169. Club moss and Peat moss belong to:

 
 
 
 

170. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

172. Which fixes atmospheric nitrogen?

 
 
 
 

173. Liverworts are included in :

 
 
 
 

174. Yeast grows more rapidly in:

 
 
 
 

175. Saccharomyces is used in:

 
 
 
 

176. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

178. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

181. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

186. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

190. Mycoplasma contains:

 
 
 
 

191. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

196. All algae have:

 
 
 
 

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

 
 
 
 

198. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

200. Plasmids are:

 
 
 
 

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

 
 
 
 

202. Mycoplasma are sensitive to:

 
 
 
 

203. Most resistant spore in bacteria is:

 
 
 
 

204. Coenogamete is found in:

 
 
 
 

205. The megasporangium of Selaginella is:

 
 
 
 

206. Yeast is a source of:

 
 
 
 

207. Most common type of conjugation in Spirogyra is :

 
 
 
 

208. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

210. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

212. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

214. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

217. Reproduction in Cycas takes place by :

 
 
 
 

218. The largest alga is:

 
 
 
 

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

 
 
 
 

220. Lichen show :

 
 
 
 

221. Black rust of wheat is caused by:

 
 
 
 

222. The first to isolate a plant virus was:

 
 
 
 

223.

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

 
 
 
 

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

 
 
 
 

226. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

228. Leaf spot of groundnut is caused by :

 
 
 
 

229. NBG of Lucknow is now named as:

 
 
 
 

230. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

232. Which of the following shows heterotrichous habit?

 
 
 
 

233. Meristele of fern is:

 
 
 
 

234. Embryo formation is not known in :

 
 
 
 

235. Citrus canker is caused by :

 
 
 
 

236. Who discovered heterothallism in fungi?

 
 
 
 

237. Lichens reproduce by :

 
 
 
 

238. Protistan algae obtain their food as:

 
 
 
 

239. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

244. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

246. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

249. Which causes red tide?

 
 
 
 

250. Most primitive embryophytes are placed in :

 
 
 
 

251. Fruits are not found in :

 
 
 
 

252. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

257. Rice, pea, potato are :

 
 
 
 

258. The gametophyte produced by apospory is :

 
 
 
 

259. The plants of Funaria grow :

 
 
 
 

260. Embryophyta includes :

 
 
 
 

261. The DNA of E coli is:

 
 
 
 

262. The development of Selaginella embryo is:

 
 
 
 

263. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

265. First animal pathogenic virus was discovered by:

 
 
 
 

266. Late blight of potato is caused by :

 
 
 
 

267. How a fern differs from a moss?

 
 
 
 

268. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

271. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

273. Iodine is obtained from:

 
 
 
 

274. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

277. The source of litmus is :

 
 
 
 

278. Embryophyta includes:

 
 
 
 

279. Ethylene oxide is widely used to:

 
 
 
 

280. Red rot of sugarcane is caused by :

 
 
 
 

281. Which is a fungicide?

 
 
 
 

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

 
 
 
 

283. In binomial system most of the words are:

 
 
 
 

284. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

286. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

289. The phloem of vascular system of Cycas is :

 
 
 
 

290. Genetic material of TMV is:

 
 
 
 

291. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

296. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

298. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

300. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

302. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

305. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. Bacteriophage consists of:

 
 
 
 

310. . Tapetum develops in:

 
 
 
 

311. The archegonia in Selaginella develop on:

 
 
 
 

312. The most primitive vascular plants is:

 
 
 
 

313. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

315. Seeds are characteristically found in :

 
 
 
 

316. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

318. What is a vector?

 
 
 
 

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

 
 
 
 

320.

321. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

323. Majority of lichens are :

 
 
 
 

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

 
 
 
 

325. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

328. Chemosynthetic bacteria are:

 
 
 
 

329. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

334. Diphtheria is caused by:

 
 
 
 

335. Which of the following have algal zone?

 
 
 
 

336. Which is a redwood tree?

 
 
 
 

337. Funaria are commonly found :

 
 
 
 

338. What is streptomycin?

 
 
 
 

339. Vascular cryptogam is the term used for :

 
 
 
 

340. Placenta in fern is:

 
 
 
 

341. Selaginella differs from Moss in having:

 
 
 
 

342. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

344. Where does meiosis occur in yeast?

 
 
 
 

345. Choose the correct statement about Spirogyra:

 
 
 
 

346. Photosynthetic protists belong to:

 
 
 
 

347. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

349. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

351. An Hfr bacterium is one that contains:

 
 
 
 

352. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

354. Pteridophytes are also known as :

 
 
 
 

355. Water-borne bacterial diseases are:

 
 
 
 

356. 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:

 
 
 
 

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

 
 
 
 

358. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

363. Lichens show :

 
 
 
 

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

 
 
 
 

365. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

368. Vascular cryptogams is the term used for:

 
 
 
 

369. Among the algae kelps are :

 
 
 
 

370. Which one of the following is a monocot?

 
 
 
 

371. Gymnosperms could also be called as:

 
 
 
 

372. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

374. Gametophyte is the main plant body in :

 
 
 
 

375. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

377. Who named prion?

 
 
 
 

378. In Selaginella, the microsporangia are:

 
 
 
 

379. Fern prothallus is:

 
 
 
 

380. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

387. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

389. Which of the following is a monocot?

 
 
 
 

390. Sleeping sickness disease in man is caused by:

 
 
 
 

391. Cellular slime mold is:

 
 
 
 

392. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

393. Heterocysts are found in :

 
 
 
 

394. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

396. Pneumonia is caused by:

 
 
 
 

397. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

399. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

401. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

404. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

406. Cleavage polyembryony is found in :

 
 
 
 

407. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

408. In Cycas microsporangia are borne on:

 
 
 
 

409. Rhizopus and yeast are usually:

 
 
 
 

410. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414.

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

 
 
 
 

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

 
 
 
 

417. One of the distinctive feature of Spirogyra is :

 
 
 
 

418. Usually, bacteria reproduce by:

 
 
 
 

419. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

421. The smallest unit of classification is:

 
 
 
 

422. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

424. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

427. Which is an exception to cell theory?

 
 
 
 

428. Reserve food in Euglena is:

 
 
 
 

429. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

431. Bacteria are considered to be plants because they:

 
 
 
 

432. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

436. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

440. The sporangium of fern contains nearly:

 
 
 
 

441. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

443. The chromosomal number in:

 
 
 
 

444. Black rust of wheat is caused by:

 
 
 
 

445. Funaria is a Bryophyta because :

 
 
 
 

446. 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:

 
 
 
 

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

 
 
 
 

448. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

454. Cycas is :

 
 
 
 

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

 
 
 
 

456. Facultative parasite is:

 
 
 
 

457. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

460. Ovules are not found enclosed in ovary in :

 
 
 
 

461. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

463. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

468. The young leaves of Cycas have :

 
 
 
 

469. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

476. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

478. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. The genetic material of poxvirus is:

 
 
 
 

486. Indusium in Dryopteris is:

 
 
 
 

487. Nitrogen-fixing bacteria may be located:

 
 
 
 

488. Red rot of sugarcane is caused by:

 
 
 
 

489. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

494. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

497. Pollination drop is:

 
 
 
 

498. Mostly type of zygospore in Ulothrix is:

 
 
 
 

499. The antibiotic is obtained from:

 
 
 
 

500. Standard size of a herbarium sheet is:

 
 
 
 

501. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

504. Water-net is the name of:

 
 
 
 

505. Green plants are classified as :

 
 
 
 

506. Botulism is a:

 
 
 
 

507. Fern prothallus produces:

 
 
 
 

508. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

511. Absorptive nutrition is:

 
 
 
 

512. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

514. Each chloroplast in Spirogyra bears :

 
 
 
 

515. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

517. Heterospory is the production of:

 
 
 
 

518. Most appropriate word for protozoans is:

 
 
 
 

519. Which have the largest antherozoid?

 
 
 
 

520. Chemosynthetic bacteria are:

 
 
 
 

521. Streptomyces falls under:

 
 
 
 

522. Bacteria are found everywhere, except:

 
 
 
 

523. Which of the following statements is not correct?

 
 
 
 

524. Fairy ring is the name given to:

 
 
 
 

525. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. Nannandria are:

 
 
 
 

529. Ergot is obtained from :

 
 
 
 

530. In Funaria :

 
 
 
 

531. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

533. The chloroplast of Chlamydomonas are:

 
 
 
 

534. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

539. LSD is:

 
 
 
 

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

 
 
 
 

541. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

543. Which statement is wrong in regard to bacteria?

 
 
 
 

544. Which lichen is called Reindeer moss?

 
 
 
 

545. The zoospores of Ulothrix are :

 
 
 
 

546. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

552. Fruiting body of lichens is :

 
 
 
 

553. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

556. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

559. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

561. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

562. In Herpes virus DNA is:

 
 
 
 

563. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

565. Which of the following are included in Tracheophyta?

 
 
 
 

566. Lichens are ecologically important because :

 
 
 
 

567. Which bacteria convert nitrate into nitrogen?

 
 
 
 

568. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

570. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

572. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

574. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

576. Most primitive kind of flower is represented by:

 
 
 
 

577. Lichens form the first community in

 
 
 
 

578. Which class of Protozoa includes all parasitic forms?

 
 
 
 

579. The fungi used as food are:

 
 
 
 

580. 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:

 
 
 
 

581. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

583. Which of the following is a parasitic algae?

 
 
 
 

584. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

587. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. In tracheophyta:

 
 
 
 

591. Asexual reproductive body of Volvox is called:

 
 
 
 

592. Mycoplasma is different from bacteria due to:

 
 
 
 

593. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

596. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

598. The chief characteristic of bryophyta is that :

 
 
 
 

599. The tallest moss in the world is :

 
 
 
 

600. The fungi are mostly:

 
 
 
 

601. Fern plants are:

 
 
 
 

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

 
 
 
 

603. Proembryo in Pinus is :

 
 
 
 

604. Penicillin is obtained from:

 
 
 
 

605. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

607. 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?

 
 
 
 

608. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

610. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

612. Heterotrichous habit means :

 
 
 
 

613. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

620. Streptomycin is obtained from:

 
 
 
 

621. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

626. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

630. Downy mildew disease is caused by :

 
 
 
 

631. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

633. Photoautotrophic bacteria have:

 
 
 
 

634. Which condition is found in Cycas?

 
 
 
 

635. The similarity between cyanobacteria and bacteria:

 
 
 
 

636. Parmelia belongs to :

 
 
 
 

637. The coralloid roots are :

 
 
 
 

638. The term stele was given by:

 
 
 
 

639. Fern phloem lacks:

 
 
 
 

640. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

642. 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?

 
 
 
 

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

 
 
 
 

644. The sporophyte of Riccia is :

 
 
 
 

645. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

649. Viroids have:

 
 
 
 

650. Which of the following is true for Selaginella?

 
 
 
 

651. The flagella of Chlamydomonas are:

 
 
 
 

652. 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?

 
 
 
 

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

 
 
 
 

654. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

657. To which class Riccia belongs :

 
 
 
 

658. Pinus gerardiana is :

 
 
 
 

659. Diploxylic vascular bundles are found in:

 
 
 
 

660. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

663. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

664. Lichens are pioneers of vegetation in a :

 
 
 
 

665. Virion refers to:

 
 
 
 

666. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

669. Acetobacter is useful in:

 
 
 
 

670. 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:

 
 
 
 

671. Cycas is:

 
 
 
 

672. Which is not found in bacteria?

 
 
 
 

673. The mode of nutrition of bacteria is usually:

 
 
 
 

674. The disease apple scab is caused by:

 
 
 
 

675. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

679. In dinoflagellates, the two flagella are:

 
 
 
 

680. The orders generally have the uniform endings:

 
 
 
 

681. Azolla growing in paddy fields helps in:

 
 
 
 

682. Amoeba is a member of the phylum:

 
 
 
 

683. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

689. Most of the algae are :

 
 
 
 

690. Select the correct statement: (NEET 2016)

 
 
 
 

691. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

693. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

695. The sporangiophores in Rhizopus are:

 
 
 
 

696. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

699. The antherozoids of Funaria are :

 
 
 
 

700. Clostridium can:

 
 
 
 

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

 
 
 
 

702. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

704. The upper region of moss capsule is :

 
 
 
 

705. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

707. Cyanophage is a virus that attacks:

 
 
 
 

708. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

711. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

713. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

715. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

718. Soil fertility is lost by the activities of:

 
 
 
 

719. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

723.

 

724. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

725. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

731. In angiosperms double fertilization represents:

 
 
 
 

732. The most important property of yeast is:

 
 
 
 

733. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

735. Pasteurization of milk involves heating for:

 
 
 
 

736. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

738. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

740. Germination of the seed of Pinus is :

 
 
 
 

741. Funaria is :

 
 
 
 

742. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

744. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

747. Generic name of mango is:

 
 
 
 

748. Infective part of virus was discovered by:

 
 
 
 

749. Which organisms are the oldest life forms?

 
 
 
 

750. Cell walls of Gram-positive bacteria contain:

 
 
 
 

751. The Rhizopus is:

 
 
 
 

752. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

755. The spermatozoids of Cycas are :

 
 
 
 

756. The group algae possesses representatives belonging to kingdom:

 
 
 
 

757. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

759. In Gymnocarpeae the fruiting body is :

 
 
 
 

760. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

763. Which is the nuclear material in bacteria?

 
 
 
 

764. In Cycas:

 
 
 
 

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

 
 
 
 

766. Disease resistant plant varieties can be produced by :

 
 
 
 

767. The tree fern is:

 
 
 
 

768. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. 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?

 
 
 
 

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

 
 
 
 

773. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

775. Acellular slime mold is/are:

 
 
 
 

776. E coli is a:

 
 
 
 

777. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

785. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

787. Woody climbers are known as :

 
 
 
 

788. Club moss is the common name of :

 
 
 
 

789. Pteridophyta are also called:

 
 
 
 

790. Enteric bacteria are those bacteria that live:

 
 
 
 

791. What is the role of nitrifying bacteria?

 
 
 
 

792. Black rust of wheat is caused by:

 
 
 
 

793. Kuru, a human disease is caused by:

 
 
 
 

794. The leafy fern plant represents the:

 
 
 
 

795. Heterosporous pteridophytes always form:

 
 
 
 

796. To which country Antony van Leeuwenhoek belong?

 
 
 
 

797. Cycas is similar to a mustard plant :

 
 
 
 

798. Spores of which plants have chloroplast:

 
 
 
 

799. Penicillin was discovered by:

 
 
 
 

800. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

802. In moss, reduction division occurs in :

 
 
 
 

803. All protozoans possess:

 
 
 
 

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

 
 
 
 

805. Synzoospore is produced in:

 
 
 
 

806. Photosynthetic bacteria have:

 
 
 
 

807. In moss, sporogenous tissue arises from:

 
 
 
 

808. Bryophyta have a special character from other plants:

 
 
 
 

809. Multicellular and jacketed sex organs are found in :

 
 
 
 

810. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

812. Ginkgo biloba is a:

 
 
 
 

813. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

816. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

818. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

822. The rhizoids of Funaria are :

 
 
 
 

823. 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:

 
 
 
 

824. Meiosis in Ulothrix takes place:

 
 
 
 

825. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

827. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

830. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

832. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

835. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

840. Pasteur is famous for his:

 
 
 
 

841. Chief constituents of bordeaux mixture are :

 
 
 
 

842. Sometimes the bacterial cell is enclosed in:

 
 
 
 

843. The fungi are usually:

 
 
 
 

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

 
 
 
 

845. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

846. Ovary is absent in :

 
 
 
 

847. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

849. Saccharomyces is well known for:

 
 
 
 

850. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

852. 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:

 
 
 
 

853. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

855. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

856. In Cycas which structure is equivalent to stamen?

 
 
 
 

857. Most primitive group of vascular plants are:

 
 
 
 

858. 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:

 
 
 
 

859. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

860. Roots are absent in :

 
 
 
 

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

 
 
 
 

862. Viruses have:

 
 
 
 

863. Who discovered streptomycin?

 
 
 
 

864. Most primitive embryophytes are placed in: