Quiz_Random

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

 
 
 
 

2. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

4. Mycoplasma are:

 
 
 
 

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

 
 
 
 

6. Which have the largest antherozoid?

 
 
 
 

7. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

9. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

11. Placenta in fern is:

 
 
 
 

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

 
 
 
 

13. Diphtheria is caused by:

 
 
 
 

14. A gill of Agaricus:

 
 
 
 

15. Most primitive group of vascular plants are:

 
 
 
 

16. The upper region of moss capsule is :

 
 
 
 

17. Which lichen is called Reindeer moss?

 
 
 
 

18. In moss, calyptra is formed from:

 
 
 
 

19. The fern plant is:

 
 
 
 

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

 
 
 
 

21. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

23. Green plants are classified as :

 
 
 
 

24. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

36. The alga, Spirogyra are found in :

 
 
 
 

37. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

39. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

45. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

47. Oswald Tippo’s classification is:

 
 
 
 

48. Discovery of penicillin was based on:

 
 
 
 

49. Smut of maize is caused by :

 
 
 
 

50. The tallest moss in the world is :

 
 
 
 

51. Roots are absent in :

 
 
 
 

52. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

54. Pseudomycelium is found in:

 
 
 
 

55. Pinus gerardiana is :

 
 
 
 

56. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

58. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

60. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

62. Centric discoid form of diatom is:

 
 
 
 

63. Mucilaginous canals in Cycas are found in :

 
 
 
 

64. Cyathia is characterized by:

 
 
 
 

65. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

67. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

68. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

70. Virion refers to:

 
 
 
 

71. Male gametophyte of Selaginella is found:

 
 
 
 

72. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

85. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

87. Sleeping sickness disease in man is caused by:

 
 
 
 

88. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

90. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

92. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

94. Spirogyra differs from moss protonema in having :

 
 
 
 

95. Saccharomyces is used in:

 
 
 
 

96. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

98. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

100. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

102. Ovary is absent in :

 
 
 
 

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

 
 
 
 

104. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

105. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

107. Leaf spot of groundnut is caused by :

 
 
 
 

108. In moss, conducting tissue is made up of

 
 
 
 

109. Which of the following is a monocot?

 
 
 
 

110. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

113. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

115. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. The chromosomal number in:

 
 
 
 

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

 
 
 
 

121. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

122. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

124. Cycas is:

 
 
 
 

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

 
 
 
 

126. Which is the nuclear material in bacteria?

 
 
 
 

127.

128. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

132. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

136. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

138. Which group of algae have an incipient nucleus?

 
 
 
 

139. Nitrogen-fixing bacteria may be located:

 
 
 
 

140. Vascular cryptogam is the term used for :

 
 
 
 

141. Which of the following is a parasitic algae?

 
 
 
 

142. Simple polyembryony is found in :

 
 
 
 

143. 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:

 
 
 
 

144. NBG of Lucknow is now named as:

 
 
 
 

145. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

147. All archaebacteria lack:

 
 
 
 

148. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

150. Pollination in Cycas takes place by :

 
 
 
 

151. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

153. The prothallus of fern is:

 
 
 
 

154. Among the algae kelps are :

 
 
 
 

155. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

156. The tree fern is:

 
 
 
 

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

 
 
 
 

158. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

160. Lichens reproduce by :

 
 
 
 

161. Water-net is the name of:

 
 
 
 

162. Some diseases caused by bacteria are:

 
 
 
 

163. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

167. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

171. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

173. The sporangia of Selaginella are attached:

 
 
 
 

174. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

176. Where does meiosis occur in yeast?

 
 
 
 

177. Ethylene oxide is widely used to:

 
 
 
 

178. Which is not true for Escherichia coli?

 
 
 
 

179. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

181. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

186. Psilotum is:

 
 
 
 

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

 
 
 
 

188. Club moss and Peat moss belong to:

 
 
 
 

189. Some biologists have used the term Mycetozoa for:

 
 
 
 

190. The truncated cone of HIV consists of:

 
 
 
 

191. Fruiting body of lichens is :

 
 
 
 

192. The Rhizopus gametes are formed in:

 
 
 
 

193. Lichen show :

 
 
 
 

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

 
 
 
 

195. Embryophyta includes :

 
 
 
 

196. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

199. Why is Cycas called a living fossil?

 
 
 
 

200. Club moss is the common name of :

 
 
 
 

201. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

203. Fruits are not found in :

 
 
 
 

204. Citrus canker is caused by:

 
 
 
 

205. E coli is a:

 
 
 
 

206. The ferns are usually found:

 
 
 
 

207. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

211. Pteridophyta are also called:

 
 
 
 

212. The term stele was given by:

 
 
 
 

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

 
 
 
 

214. Rhizopus belongs to:

 
 
 
 

215. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

216. Fern plants are:

 
 
 
 

217. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. Gram stain is used to:

 
 
 
 

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

 
 
 
 

222. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

223. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

226. LSD is:

 
 
 
 

227. Fern prothallus is:

 
 
 
 

228. Red rot of sugarcane is caused by :

 
 
 
 

229. Pollination drop is:

 
 
 
 

230.

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

 
 
 
 

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

 
 
 
 

233. Fern prothallus produces:

 
 
 
 

234. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

236. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

238. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

240. Embryo formation is not known in :

 
 
 
 

241. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

245. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

249. 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?

 
 
 
 

250. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

252. Which is the correct statement about Selaginella?

 
 
 
 

253. Tautonyms are illegitimate in:

 
 
 
 

254. Aflatoxin is produced by:

 
 
 
 

255. Cycas is similar to a mustard plant :

 
 
 
 

256. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

258. Germination of the seed of Pinus is :

 
 
 
 

259. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

262. Spermatophyta are characterized by producing:

 
 
 
 

263. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

265. The fungi used as food are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

268. Lichens reproduce by :

 
 
 
 

269. Which one of the following is a monocot?

 
 
 
 

270. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

274. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

277. Heterospory and ligulate leaves are a feature of:

 
 
 
 

278. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

282. Ovary is absent in:

 
 
 
 

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

 
 
 
 

284. Sometimes the bacterial cell is enclosed in:

 
 
 
 

285. Black rust of wheat is caused by:

 
 
 
 

286. Which is a redwood tree?

 
 
 
 

287. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

289. Rhizophore of Selaginella is:

 
 
 
 

290. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

292. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

295. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

297. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

300. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

302. Penicillin is obtained from:

 
 
 
 

303. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

307. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

309. Cycas is different from mango in :

 
 
 
 

310. The lambda phase is a:

 
 
 
 

311. Majority of lichens are :

 
 
 
 

312. Azolla growing in paddy fields helps in:

 
 
 
 

313. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

315. Anoxygenic photosynthesis occurs in:

 
 
 
 

316. What is streptomycin?

 
 
 
 

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

 
 
 
 

318. Typhoid in man is caused by:

 
 
 
 

319. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

321. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

324. What is a vector?

 
 
 
 

325. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

328. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

331. Most of the algae are :

 
 
 
 

332. Green plants are classified as:

 
 
 
 

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

 
 
 
 

334. Which of the following lichens is harmful?

 
 
 
 

335. Clostridium can:

 
 
 
 

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

 
 
 
 

337. Sexual reproduction in Rhizopus is by:

 
 
 
 

338. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

341. Which of the following does not contain chlorophyll?

 
 
 
 

342. The rhizoids of Funaria are :

 
 
 
 

343. In Cycas which structure is equivalent to stamen?

 
 
 
 

344. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

346. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

348. Bacteria are considered to be plants because they:

 
 
 
 

349. Some bacteria cannot be killed easily because of:

 
 
 
 

350. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

352. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

353. 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:

 
 
 
 

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

 
 
 
 

355. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

358. Fruits are not found in:

 
 
 
 

359. The largest known bacterium is:

 
 
 
 

360. Aflatoxin is produced as a product in :

 
 
 
 

361. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. Late blight of potato is caused by :

 
 
 
 

365. Heterosporous pteridophytes always form:

 
 
 
 

366. Iodine is obtained from :

 
 
 
 

367. Chemosynthetic bacteria are:

 
 
 
 

368.

 

369. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

371. Cycas is :

 
 
 
 

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

 
 
 
 

373. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

374. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

375. Acellular slime mold is/are:

 
 
 
 

376. Which class of Protozoa includes all parasitic forms?

 
 
 
 

377. The gametophyte of moss has distinct phases :

 
 
 
 

378. Azolla and Salvinia both are:

 
 
 
 

379. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

381. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

383. Funaria is :

 
 
 
 

384. The DNA of E coli is:

 
 
 
 

385. Spermatophyta are characterized by producing:

 
 
 
 

386. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

388. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

390. 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:

 
 
 
 

391. Cellular slime mold is:

 
 
 
 

392. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

395. The zoospores of Ulothrix are :

 
 
 
 

396. The fungi that grow on wood are called:

 
 
 
 

397. Liverworts are included in :

 
 
 
 

398. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

400. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

402. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

404. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

406. Endemic plants are characterised by their:

 
 
 
 

407. Maximum diversity of life forms occurs in :

 
 
 
 

408. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

412. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

415. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

417. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

419. Cleavage polyembryony is found in :

 
 
 
 

420. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

427. Which causes red tide?

 
 
 
 

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

 
 
 
 

429. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

431. Ulothrix produces :

 
 
 
 

432. Indusium in Dryopteris is:

 
 
 
 

433. What are plasmids?

 
 
 
 

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

 
 
 
 

435. The nucleus of bacteria is:

 
 
 
 

436. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

438. Halophiles are the bacteria that require for growth:

 
 
 
 

439. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

441. Choose the correct statement about Spirogyra:

 
 
 
 

442. Bacteria growing on synthetic medium are called:

 
 
 
 

443. Number of capsomeres forming capsid of TMV is:

 
 
 
 

444. Sexual reproduction of lichen is due to :

 
 
 
 

445. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

448. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

450. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

452. Photosynthetic protists belong to:

 
 
 
 

453. Viruses are commonly transmitted in plants through:

 
 
 
 

454. Isomorphic type alternation of generation is found in:

 
 
 
 

455. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

458. The fungi are mostly:

 
 
 
 

459. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. Mixed cropping helps :

 
 
 
 

463. Red rot of sugarcane is caused by:

 
 
 
 

464. In binomial system most of the words are:

 
 
 
 

465. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

468. Most primitive kind of flower is represented by:

 
 
 
 

469. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. Funaria are commonly found :

 
 
 
 

475. Embryophyta includes:

 
 
 
 

476. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

483. The most primitive vascular plants is:

 
 
 
 

484. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

486. Which is an edible fungus?

 
 
 
 

487. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

491. The megaspore of Selaginella on germination produces:

 
 
 
 

492. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

494. The leaves of Funaria are :

 
 
 
 

495. Downy mildew disease is caused by :

 
 
 
 

496. Total parasites belong to:

 
 
 
 

497. Select the wrong statement:

 
 
 
 

498. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

500. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

502. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

504. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

509. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

511. The flagella of Chlamydomonas are:

 
 
 
 

512. Which of the following statements is not correct?

 
 
 
 

513. 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:

 
 
 
 

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

 
 
 
 

515. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

520. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

524. Parmelia belongs to :

 
 
 
 

525. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

527. The development of Selaginella embryo is:

 
 
 
 

528. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

530. TMV was isolated in crystalline form by:

 
 
 
 

531. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

534. Cryptogams include :

 
 
 
 

535. Bacteria are found everywhere, except:

 
 
 
 

536. The chief characteristic of class Ascomycetes is:

 
 
 
 

537. Broad spectrum antibiotic is, which:

 
 
 
 

538. Viruses are considered to be:

 
 
 
 

539. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

541. The antibiotic is obtained from:

 
 
 
 

542. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

543. Germ theory of disease was proposed by:

 
 
 
 

544. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

546. Which condition is found in Cycas?

 
 
 
 

547. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

551. Spores of which plants have chloroplast:

 
 
 
 

552. True sexuality is not found in:

 
 
 
 

553. Cocci types of bacteria are:

 
 
 
 

554. The largest alga is:

 
 
 
 

555. The male gametes of Pinus are :

 
 
 
 

556. Enteric bacteria are those bacteria that live:

 
 
 
 

557. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

559. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

565. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. The leaves of Funaria are :

 
 
 
 

569. The sporangiophores in Rhizopus are:

 
 
 
 

570. Vegetative reproduction in Cycas is by means of :

 
 
 
 

571. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

572. Pinus is:

 
 
 
 

573. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

575. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

577. The phloem of vascular system of Cycas is :

 
 
 
 

578. Generic name of mango is:

 
 
 
 

579. The smallest bacterium is:

 
 
 
 

580. The order generally ends with:

 
 
 
 

581. Proembryo in Pinus is :

 
 
 
 

582. Pythium debaryanum is the causative agent of:

 
 
 
 

583. What are Cyanobacteria?

 
 
 
 

584. The chloroplast in Ulothrix is :

 
 
 
 

585. An Hfr bacterium is one that contains:

 
 
 
 

586. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

588. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

590. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

595. Vascular cryptogams is the term used for:

 
 
 
 

596. The zygospore in Rhizopus on germination forms:

 
 
 
 

597. The development of sporangium in Selaginella is:

 
 
 
 

598. Rhizopus and yeast are usually:

 
 
 
 

599. Smallpox is caused by:

 
 
 
 

600. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

604. Methanogens belong to:

 
 
 
 

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

 
 
 
 

606. Each chloroplast in Spirogyra bears :

 
 
 
 

607. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

609. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

611. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

614. Meristele of fern is:

 
 
 
 

615. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. To which country Antony van Leeuwenhoek belong?

 
 
 
 

620. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

622. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

624. The orders generally have the uniform endings:

 
 
 
 

625. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

626. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

628. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

629. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

631. Seeds are characteristically found in:

 
 
 
 

632. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

637. The mycelium of Rhizopus is:

 
 
 
 

638. The most important property of yeast is:

 
 
 
 

639. An alga which is rich in proteins:

 
 
 
 

640. Yeast belongs to class:

 
 
 
 

641. Spirogyra represents the :

 
 
 
 

642. The disease symptom necrosis refers to :

 
 
 
 

643. Which among the following is a shrub?

 
 
 
 

644. The middle sterile part of capsule is called:

 
 
 
 

645. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

647. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

649. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

652. Genetic material of TMV is:

 
 
 
 

653. Male gametes in Dryopteris are:

 
 
 
 

654. The Rhizopus is:

 
 
 
 

655. The archegonia of Selaginella are differentiated by:

 
 
 
 

656. In tracheophyta:

 
 
 
 

657. Multicellular and jacketed sex organs are found in :

 
 
 
 

658. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

661. Sporophyte of Funaria is :

 
 
 
 

662. Late blight of potato is caused by:

 
 
 
 

663. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

666. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

670. The young leaves of Cycas have :

 
 
 
 

671. Etiology includes the study of :

 
 
 
 

672. Soil fertility is lost by the activities of:

 
 
 
 

673. Which of the following is sago palm?

 
 
 
 

674. The group algae possesses representatives belonging to kingdom:

 
 
 
 

675. In Herpes virus DNA is:

 
 
 
 

676. The prothallus of fern represents the plant:

 
 
 
 

677. Most primitive embryophytes are placed in:

 
 
 
 

678. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

681. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

683. Yeast is a source of:

 
 
 
 

684. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

688. Pteridophytes are also known as :

 
 
 
 

689. Red rot of sugarcane is caused by :

 
 
 
 

690. Viruses have:

 
 
 
 

691. Which statement is wrong in regard to bacteria?

 
 
 
 

692. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

694. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

695. First animal pathogenic virus was discovered by:

 
 
 
 

696. Botulism is a:

 
 
 
 

697. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

699. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

701. Select the correct statement: (NEET 2016)

 
 
 
 

702. All protozoans possess:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. Seeds are characteristically found in :

 
 
 
 

706. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

708. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

710. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

712. 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?

 
 
 
 

713. Select the wrong statement:

 
 
 
 

714. In Funaria, calyptra is derived from :

 
 
 
 

715. The coralloid roots are :

 
 
 
 

716. Pasteurized milk is:

 
 
 
 

717. Wine turns sour because of:

 
 
 
 

718. In moss, sporogenous tissue arises from:

 
 
 
 

719. The vascular bundles of Cycas stem are :

 
 
 
 

720. The megasporangium of Selaginella is:

 
 
 
 

721. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

731. Special feature of pollen grains of Pinus is :

 
 
 
 

732. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

735. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. Woody climbers are known as :

 
 
 
 

739.

740. The sporophyte of Riccia is :

 
 
 
 

741. Funaria is :

 
 
 
 

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

 
 
 
 

743. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

745. In moss, reduction division occurs in :

 
 
 
 

746. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

748. Interferon is a:

 
 
 
 

749. Bacteria are placed under:

 
 
 
 

750. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

752. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

754. Cell walls of Gram-positive bacteria contain:

 
 
 
 

755. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

758. Fertility of the soil is increased by:

 
 
 
 

759. Who discovered streptomycin?

 
 
 
 

760. Longest known virus is:

 
 
 
 

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

 
 
 
 

762. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

763. Bivalved siliceous shell or frustule occur in:

 
 
 
 

764. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

766. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

773. Kuru, a human disease is caused by:

 
 
 
 

774. Bacteria were first discovered by:

 
 
 
 

775. Bryophyta have been placed in cryptogams because:

 
 
 
 

776. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

778. Protistan algae obtain their food as:

 
 
 
 

779. How is moss different from fern?

 
 
 
 

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

 
 
 
 

781. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. Antibiotic has been extracted from :

 
 
 
 

785. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

786. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

788. Pasteurization of milk involves heating for:

 
 
 
 

789. Bentham and Hooker placed gymnosperms:

 
 
 
 

790. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

792. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

795. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

797. Lichens are the indicator of pollution :

 
 
 
 

798. 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?

 
 
 
 

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

 
 
 
 

800. The photosynthetic protists are:

 
 
 
 

801. Virus and bacteriophage are made-up of:

 
 
 
 

802. Mostly type of zygospore in Ulothrix is:

 
 
 
 

803. In Cycas:

 
 
 
 

804. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

806. Bacteriophages have been used as:

 
 
 
 

807. In moss, stomata are found:

 
 
 
 

808. The fungi are usually:

 
 
 
 

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

 
 
 
 

810. Plasmids are:

 
 
 
 

811. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

813. The spermatozoids of Cycas are :

 
 
 
 

814. The microsporophylls on the cone of Cycas are :

 
 
 
 

815. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

818. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

820. The sporangium of fern contains nearly:

 
 
 
 

821. Penicillin was discovered by:

 
 
 
 

822. Nannandria are:

 
 
 
 

823. Heterospory is the production of:

 
 
 
 

824. Ergot of rye is caused by:

 
 
 
 

825. The source of litmus is :

 
 
 
 

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

 
 
 
 

827. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

829. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

832. White rust of crucifers is caused by:

 
 
 
 

833. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

835. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

836. Photoautotrophic bacteria have:

 
 
 
 

837. What is absent in Deuteromycetes?

 
 
 
 

838. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

840. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

844. Metulae are found in:

 
 
 
 

845. Reproduction in Rhizopus is:

 
 
 
 

846. In Gymnosperms endosperm is a:

 
 
 
 

847. 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:

 
 
 
 

848. Ergot is obtained from :

 
 
 
 

849. Lichens form the first community in

 
 
 
 

850. Which is a tautonym?

 
 
 
 

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

 
 
 
 

852. Facultative parasite is:

 
 
 
 

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

 
 
 
 

854. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

856. Fruits are not found in Cycas because:

 
 
 
 

857. In Funaria :

 
 
 
 

858. Saccharomyces is well known for:

 
 
 
 

859. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

864. Diploxylic vascular bundles are found in: