Quiz_Random

1. Which is an exception to cell theory?

 
 
 
 

2. Discovery of penicillin was based on:

 
 
 
 

3. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Who named prion?

 
 
 
 

12. Cycas is different from mango in :

 
 
 
 

13. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. The antibiotic is obtained from:

 
 
 
 

17. Pythium debaryanum is the causative agent of:

 
 
 
 

18. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

27. The rhizoids of Funaria are :

 
 
 
 

28. The chief characteristic of class Ascomycetes is:

 
 
 
 

29. The largest alga is:

 
 
 
 

30. Heterospory and ligulate leaves are a feature of:

 
 
 
 

31. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

33. Pythium debaryanum is the causative agent of:

 
 
 
 

34. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. Which is a redwood tree?

 
 
 
 

38. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

39. Anoxygenic photosynthesis occurs in:

 
 
 
 

40. In Selaginella, the microsporangia are:

 
 
 
 

41. In Cycas which structure is equivalent to stamen?

 
 
 
 

42. Which class of Protozoa includes all parasitic forms?

 
 
 
 

43. In Herpes virus DNA is:

 
 
 
 

44. Fern plants are:

 
 
 
 

45. Indusium in Dryopteris is:

 
 
 
 

46. Majority of lichens are :

 
 
 
 

47. Protists which are diploid reproduce sexually by:

 
 
 
 

48. Roots are absent in :

 
 
 
 

49. 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?

 
 
 
 

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

 
 
 
 

51. Viruses are commonly transmitted in plants through:

 
 
 
 

52. The group algae possesses representatives belonging to kingdom:

 
 
 
 

53. Psilotum is:

 
 
 
 

54. Winged pollen grains are found in :

 
 
 
 

55. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

57. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

61. Spirogyra differs from moss protonema in having :

 
 
 
 

62. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

64. Metulae are found in:

 
 
 
 

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

 
 
 
 

66. Lichen show :

 
 
 
 

67. The sporangiophores in Rhizopus are:

 
 
 
 

68. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

69. In moss, peristomial teeth are:

 
 
 
 

70. The disease symptom necrosis refers to :

 
 
 
 

71. Rhizopus belongs to:

 
 
 
 

72. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. The chromosomal number in:

 
 
 
 

76. Mycoplasma is different from bacteria due to:

 
 
 
 

77. Most of the lichens are composed of :

 
 
 
 

78. Who discovered cyanophages?

 
 
 
 

79. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

81. Which of the following statement is correct?

 
 
 
 

82. The Rhizopus is:

 
 
 
 

83. What is streptomycin?

 
 
 
 

84. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

86. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. Virion refers to:

 
 
 
 

90. Sexual reproduction in Rhizopus is by:

 
 
 
 

91. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. The young leaves of Cycas have :

 
 
 
 

96. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

97. Saccharomyces ludwigii ascus produces:

 
 
 
 

98. Penicillin is obtained from:

 
 
 
 

99. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

101. The prothallus of fern represents the plant:

 
 
 
 

102. Mostly type of zygospore in Ulothrix is:

 
 
 
 

103. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

105. Reproduction in Cycas takes place by :

 
 
 
 

106. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

110. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

111. Rhizoids of Riccia are :

 
 
 
 

112. Heterocysts are found in :

 
 
 
 

113. In Pteris, the roots are:

 
 
 
 

114. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

117. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

120. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

122. Vascular tissue is found in :

 
 
 
 

123. The archegonia of Selaginella are differentiated by:

 
 
 
 

124. Club moss and Peat moss belong to:

 
 
 
 

125. Disease resistant plant varieties can be produced by :

 
 
 
 

126. In tracheophyta:

 
 
 
 

127. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

129. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

131. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

133. The genetic material of poxvirus is:

 
 
 
 

134. The photosynthetic protists are:

 
 
 
 

135. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. Most primitive embryophytes are placed in:

 
 
 
 

139. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

141. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

143. Some bacteria cannot be killed easily because of:

 
 
 
 

144. The megasporangium of Selaginella is:

 
 
 
 

145. The two conjugating gametangia of Rhizopus are:

 
 
 
 

146. Multicellular and jacketed sex organs are found in :

 
 
 
 

147. Heterospory is the production of:

 
 
 
 

148. The zygospore in Rhizopus on germination forms:

 
 
 
 

149. Which one of the following is a monocot?

 
 
 
 

150. Mycoplasma are sensitive to:

 
 
 
 

151. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

153. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

156. Bacteriophage consists of:

 
 
 
 

157. Club moss is the common name of :

 
 
 
 

158. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

160. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

167. Sporophyte of Funaria is :

 
 
 
 

168. Spores of which plants have chloroplast:

 
 
 
 

169. Amoeba is a member of the phylum:

 
 
 
 

170. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. Polystelic condition is found in:

 
 
 
 

174. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

176. Fern prothallus is:

 
 
 
 

177. The truncated cone of HIV consists of:

 
 
 
 

178. Botulism is a:

 
 
 
 

179. The fungi are mostly:

 
 
 
 

180. In moss, calyptra is formed from:

 
 
 
 

181. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

182. Germination of the seed of Pinus is :

 
 
 
 

183. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

186. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

187. Pasteurized milk is:

 
 
 
 

188. Male gametes in Dryopteris are:

 
 
 
 

189. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

194. Ectocarpus produces:

 
 
 
 

195. Winged seeds are found in :

 
 
 
 

196. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

199. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

201. Photosynthetic bacteria have:

 
 
 
 

202. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

204. The development of sporangium in Selaginella is:

 
 
 
 

205. Choose the correct statement about Spirogyra:

 
 
 
 

206. The ascus of yeast contains:

 
 
 
 

207. The upper region of moss capsule is :

 
 
 
 

208. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

210. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

212. The spermatozoids of Cycas are :

 
 
 
 

213. Which is a fungicide?

 
 
 
 

214. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

216. Fruiting body of lichens is :

 
 
 
 

217. Iodine is obtained from:

 
 
 
 

218. Endemic plants are characterised by their:

 
 
 
 

219. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

221. Which organisms are the oldest life forms?

 
 
 
 

222. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. Which of the following is sago palm?

 
 
 
 

226. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

228. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

231. All algae have:

 
 
 
 

232. Streptomycin is obtained from:

 
 
 
 

233. 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:

 
 
 
 

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

 
 
 
 

235. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

239. In Gymnosperms endosperm is a:

 
 
 
 

240. Pteridophytes are also known as :

 
 
 
 

241. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

244. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

247. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

249. Lichens form the first community in

 
 
 
 

250. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

253. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

255. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

257. NBG of Lucknow is now named as:

 
 
 
 

258. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

260. Each chloroplast in Spirogyra bears :

 
 
 
 

261. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

263. What is the role of nitrifying bacteria?

 
 
 
 

264. Cyathia is characterized by:

 
 
 
 

265. The stele of Dryopteris is a:

 
 
 
 

266. E coli is a:

 
 
 
 

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

 
 
 
 

268. Protozoans are considered animals because these are:

 
 
 
 

269. The sori in Dryopteris are found on:

 
 
 
 

270. The root nodules of leguminous plants contain:

 
 
 
 

271. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

272. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

277. The role of meiosis is for:

 
 
 
 

278. Longest known virus is:

 
 
 
 

279. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

281. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

288. Viroids have:

 
 
 
 

289. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

296. The fern plant is:

 
 
 
 

297. Embryo formation is not known in :

 
 
 
 

298. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

300. Select the wrong statement:

 
 
 
 

301. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

303. What are plasmids?

 
 
 
 

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

 
 
 
 

305. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

307. The term stele was given by:

 
 
 
 

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

 
 
 
 

309. Most primitive group of vascular plants are:

 
 
 
 

310. Cyanophage is a virus that attacks:

 
 
 
 

311. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. Which of the following have a prokaryotic cell?

 
 
 
 

316. Meiosis in Ulothrix takes place:

 
 
 
 

317. Cap cells are found in the filament of:

 
 
 
 

318. How a fern differs from a moss?

 
 
 
 

319. The coralloid roots are :

 
 
 
 

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

 
 
 
 

321. Typhoid in man is caused by:

 
 
 
 

322. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

324. All protozoans possess:

 
 
 
 

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

 
 
 
 

326. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

330. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

332. Lichens reproduce by :

 
 
 
 

333. Mycoplasma are:

 
 
 
 

334. Ergot is obtained from :

 
 
 
 

335. Nitrifying bacteria play an important role by converting:

 
 
 
 

336. Which is an edible fungus?

 
 
 
 

337. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

339. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

342. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

345. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

346. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

348. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

350. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

353. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

356. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

358. Generic name of mango is:

 
 
 
 

359. Interferon is a:

 
 
 
 

360.

361. Aflatoxin is produced by:

 
 
 
 

362. Placenta in fern is:

 
 
 
 

363. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

365. Bacteriophages have been used as:

 
 
 
 

366. Bacteria differ from viruses in being sensitive to:

 
 
 
 

367. Rhizophore of Selaginella is:

 
 
 
 

368. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

371. Some diseases caused by bacteria are:

 
 
 
 

372. In Funaria, calyptra is derived from :

 
 
 
 

373. Oswald Tippo’s classification is:

 
 
 
 

374. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

376. Cryptogams include :

 
 
 
 

377. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

379. Which statement is wrong in regard to bacteria?

 
 
 
 

380. In moss, reduction division occurs in :

 
 
 
 

381. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

384. Which of the following are included in Tracheophyta?

 
 
 
 

385. Nannandria are:

 
 
 
 

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

 
 
 
 

387. The source of litmus is :

 
 
 
 

388. The fungi are usually:

 
 
 
 

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

 
 
 
 

390. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

393. Late blight of potato is caused by :

 
 
 
 

394. What is special feature of fern archegonia?

 
 
 
 

395. Red rot of sugarcane is caused by :

 
 
 
 

396. Embryophyta includes :

 
 
 
 

397. The spur of Pinus roxburghii has :

 
 
 
 

398. Circular DNA is seen in:

 
 
 
 

399. Funaria can be differentiated from Cycas :

 
 
 
 

400. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

402. Maximum diversity of life forms occurs in :

 
 
 
 

403. . Tapetum develops in:

 
 
 
 

404. Black rust of wheat is caused by:

 
 
 
 

405. Cycas is:

 
 
 
 

406. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

409. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Smallpox is caused by:

 
 
 
 

414. Which fixes atmospheric nitrogen?

 
 
 
 

415. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

417. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

418.

 

419. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

422. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

424. Red rot of sugarcane is caused by :

 
 
 
 

425. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

427. Funaria is :

 
 
 
 

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

 
 
 
 

429. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

431. Climbers are found in genus:

 
 
 
 

432. Which of the following is true for Selaginella?

 
 
 
 

433. One of the distinctive feature of Spirogyra is :

 
 
 
 

434. What is mycorrhiza?

 
 
 
 

435. Which of the following is a heterosporous pteridophyte?

 
 
 
 

436. Chemosynthetic bacteria are:

 
 
 
 

437. Soil fertility is lost by the activities of:

 
 
 
 

438. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

440. Total parasites belong to:

 
 
 
 

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

 
 
 
 

442. Which have the largest antherozoid?

 
 
 
 

443. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

445. Which of the following have algal zone?

 
 
 
 

446. Clostridium can:

 
 
 
 

447. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

450. The fungi used as food are:

 
 
 
 

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

 
 
 
 

452. Facultative parasite is:

 
 
 
 

453. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

456. Seeds are characteristically found in :

 
 
 
 

457. Vegetative reproduction in Cycas is by means of :

 
 
 
 

458. Leaf spot of groundnut is caused by :

 
 
 
 

459. Ovules are not found enclosed in ovary of:

 
 
 
 

460. Plasmids are:

 
 
 
 

461. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

464. Which of the following lichens is harmful?

 
 
 
 

465. Liverworts are included in :

 
 
 
 

466. Black rust of wheat is caused by:

 
 
 
 

467. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

469. Fertility of the soil is increased by:

 
 
 
 

470. Selaginella differs from Moss in having:

 
 
 
 

471. The leaf of Cycas shows:

 
 
 
 

472. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

475. Spirogyra represents the :

 
 
 
 

476. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

479. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

481. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

484. Most appropriate word for protozoans is:

 
 
 
 

485. Pseudomycelium is found in:

 
 
 
 

486. In Gymnocarpeae the fruiting body is :

 
 
 
 

487. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

490. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

492. Facultative saprophyte is:

 
 
 
 

493. Cycas plant in appearance resembles :

 
 
 
 

494. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

497. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

499. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

502. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

505. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

507. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

509. The sporophyte of Riccia is represented by :

 
 
 
 

510. What is a vector?

 
 
 
 

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

 
 
 
 

512. 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?

 
 
 
 

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

 
 
 
 

514. The largest known bacterium is:

 
 
 
 

515. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

517. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

520. Sexual reproduction of lichen is due to :

 
 
 
 

521. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

523. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

527. Coenogamete is found in:

 
 
 
 

528. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

531. Gametophyte is the main plant body in :

 
 
 
 

532. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. TMV was isolated in crystalline form by:

 
 
 
 

538. Black rust of wheat is caused by:

 
 
 
 

539. 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?

 
 
 
 

540. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

542. Sleeping sickness disease in man is caused by:

 
 
 
 

543. Isomorphic type alternation of generation is found in:

 
 
 
 

544. Enteric bacteria are those bacteria that live:

 
 
 
 

545.

546. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

548. 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:

 
 
 
 

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

 
 
 
 

550. The gametophyte of fern is as:

 
 
 
 

551. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

553. Green plants are classified as :

 
 
 
 

554. Little leaf disease of Brinjal is caused by:

 
 
 
 

555. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

559. Simple polyembryony is found in :

 
 
 
 

560. Azolla and Salvinia both are:

 
 
 
 

561. Virus and bacteriophage are made-up of:

 
 
 
 

562. Pollination in Pinus is :

 
 
 
 

563. Cell walls of Gram-positive bacteria contain:

 
 
 
 

564. Bacteria are considered to be plants because they:

 
 
 
 

565. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

567. Where does meiosis occur in yeast?

 
 
 
 

568. Milk is converted to curd by:

 
 
 
 

569. The microsporophylls on the cone of Cycas are :

 
 
 
 

570. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

571. Fruits are not found in :

 
 
 
 

572. Detailed study of bacteriophage was made by:

 
 
 
 

573. Halophiles are the bacteria that require for growth:

 
 
 
 

574. Which condition is found in Cycas?

 
 
 
 

575. Special feature of pollen grains of Pinus is :

 
 
 
 

576. The tallest moss in the world is :

 
 
 
 

577. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

582. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

588. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

590. Woody climbers are known as :

 
 
 
 

591. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

595. Most common type of conjugation in Spirogyra is :

 
 
 
 

596. The chloroplast of Chlamydomonas are:

 
 
 
 

597. An alga which is rich in proteins:

 
 
 
 

598. Bryophyta have been placed in cryptogams because:

 
 
 
 

599. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

601. Pinus is:

 
 
 
 

602. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

605. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

607. Yeast belongs to class:

 
 
 
 

608. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

610. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

619. In Funaria :

 
 
 
 

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

 
 
 
 

621. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Triple antigen injection or vaccine are for:

 
 
 
 

628. Pollination in Cycas takes place by :

 
 
 
 

629. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

631. Funaria are commonly found :

 
 
 
 

632. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

637. The seedless plants which possess vascular tissues are:

 
 
 
 

638. Oswald Tippo’s classification was based on :

 
 
 
 

639. 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:

 
 
 
 

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

 
 
 
 

641. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

648. The development of Selaginella embryo is:

 
 
 
 

649. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

652. Cellular slime mold is:

 
 
 
 

653. Mixed cropping helps :

 
 
 
 

654. Which part of Riccia bears nurse cells?

 
 
 
 

655. The leafy fern plant represents the:

 
 
 
 

656. Rhizopus and yeast are usually:

 
 
 
 

657. The lambda phase is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

664. Which of the following applies to Selaginella?

 
 
 
 

665. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

667. Saccharomyces is well known for:

 
 
 
 

668. Germ theory of disease was proposed by:

 
 
 
 

669. In moss, sporogenous tissue arises from:

 
 
 
 

670. Heterotrichous habit means :

 
 
 
 

671. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

676. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

678. Pteridophyta are also called:

 
 
 
 

679. How is moss different from fern?

 
 
 
 

680. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

682. Reproduction in Rhizopus is:

 
 
 
 

683. John Hutchinson divided dicots into two divisions:

 
 
 
 

684. Yeast is a source of:

 
 
 
 

685. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

687. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

691. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. Antibiotics cure the disease by:

 
 
 
 

696. Etiology includes the study of :

 
 
 
 

697. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

698. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

699. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

701. Enzymes are absent in:

 
 
 
 

702. Viruses have:

 
 
 
 

703. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

705. Ovary is absent in :

 
 
 
 

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

 
 
 
 

707. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

709. The prothallus of fern is:

 
 
 
 

710. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. Green plants are classified as:

 
 
 
 

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

 
 
 
 

716. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. 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:

 
 
 
 

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

 
 
 
 

721. Banana bunchy top is caused by :

 
 
 
 

722. Common phycobiont in a lichen is :

 
 
 
 

723. Bacteria growing on synthetic medium are called:

 
 
 
 

724. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

730. The tree fern is:

 
 
 
 

731. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

734. Siphonogamy is found in:

 
 
 
 

735. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

744. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

745. Which one of the following statement is wrong?

 
 
 
 

746. The disease apple scab is caused by:

 
 
 
 

747. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

750. LSD is:

 
 
 
 

751. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

753. The middle sterile part of capsule is called:

 
 
 
 

754. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. The orders generally have the uniform endings:

 
 
 
 

758. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

761. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

762. The mode of nutrition of bacteria is usually:

 
 
 
 

763. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

765. Lichens are indicators of :

 
 
 
 

766. Nitrogen-fixing bacteria may be located:

 
 
 
 

767. In Cycas:

 
 
 
 

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

 
 
 
 

769. Saccharomyces is used in:

 
 
 
 

770. Fruits are not found in Cycas because:

 
 
 
 

771. 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:

 
 
 
 

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

 
 
 
 

773. Which is a tautonym?

 
 
 
 

774. Funaria is :

 
 
 
 

775. Who among the following discovered virus?

 
 
 
 

776. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

780. In angiosperms double fertilization represents:

 
 
 
 

781. Meristele of fern is:

 
 
 
 

782. Which of the following statements is not correct?

 
 
 
 

783. Synzoospore is produced in:

 
 
 
 

784. The first to isolate a plant virus was:

 
 
 
 

785. Fruits are not found in:

 
 
 
 

786. 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:

 
 
 
 

787. Which bacteria convert nitrate into nitrogen?

 
 
 
 

788. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

791. Quarantine regulations are concerned with:

 
 
 
 

792. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

793. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

796. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

798. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

805. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. Which is the nuclear material in bacteria?

 
 
 
 

809. Seeds are characteristically found in:

 
 
 
 

810. Most of the algae are :

 
 
 
 

811. The plants of Funaria grow :

 
 
 
 

812. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

814. Fern prothallus produces:

 
 
 
 

815. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

817. Aflatoxin is produced as a product in :

 
 
 
 

818. Zoogametes are not found in:

 
 
 
 

819. The similarity between cyanobacteria and bacteria:

 
 
 
 

820. Lichens are the indicator of pollution :

 
 
 
 

821. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

823. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

826. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

828. Lichens show :

 
 
 
 

829. Which lichen is called Reindeer moss?

 
 
 
 

830. True sexuality is not found in:

 
 
 
 

831. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

833. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

837. In a bacteriophage, DNA is present in:

 
 
 
 

838. The male gametes of Pinus are :

 
 
 
 

839. Ulothrix produces :

 
 
 
 

840. What is absent in Deuteromycetes?

 
 
 
 

841. Spermatophyta are characterized by producing:

 
 
 
 

842. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

844. Ovules are not found enclosed in ovary in :

 
 
 
 

845. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

847. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

852. The gametophyte produced by apospory is :

 
 
 
 

853. Mucilaginous canals in Cycas are found in :

 
 
 
 

854. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

858. Among the algae kelps are :

 
 
 
 

859. Pollination drop is:

 
 
 
 

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

 
 
 
 

861. The smallest unit of classification is:

 
 
 
 

862. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

864. Ethylene oxide is widely used to: