Quiz_Random

1. Bacteria are placed under:

 
 
 
 

2. The fungi used as food are:

 
 
 
 

3. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Polystelic condition is found in:

 
 
 
 

8. 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?

 
 
 
 

9. Which of the following is a monocot?

 
 
 
 

10. In moss, stomata are found:

 
 
 
 

11. Which is a fungicide?

 
 
 
 

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

 
 
 
 

13. Which among the following is a shrub?

 
 
 
 

14. Leprosy is caused by:

 
 
 
 

15. Triple antigen injection or vaccine are for:

 
 
 
 

16. Zoogametes are not found in:

 
 
 
 

17. In Gymnocarpeae the fruiting body is :

 
 
 
 

18. The flagella of Chlamydomonas are:

 
 
 
 

19. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. In Funaria, calyptra is derived from :

 
 
 
 

23. Red rot of sugarcane is caused by:

 
 
 
 

24. All archaebacteria lack:

 
 
 
 

25. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. The alga, Spirogyra are found in :

 
 
 
 

29. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. Which one of the following statement is wrong?

 
 
 
 

33. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

35. What are plasmids?

 
 
 
 

36. Ovules are not found enclosed in ovary of:

 
 
 
 

37. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Funaria is :

 
 
 
 

43. 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:

 
 
 
 

44. Germination of the seed of Pinus is :

 
 
 
 

45. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

53. Mycoplasma is different from bacteria due to:

 
 
 
 

54. Bryophyta have been placed in cryptogams because:

 
 
 
 

55. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Photosynthetic protists belong to:

 
 
 
 

59. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

62. Most primitive embryophytes are placed in :

 
 
 
 

63. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

65. Male gametophyte of Selaginella is found:

 
 
 
 

66. 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?

 
 
 
 

67. The zygospore in Rhizopus on germination forms:

 
 
 
 

68. Spermatophyta are characterized by producing:

 
 
 
 

69. True sexuality is not found in:

 
 
 
 

70. Green plants are classified as:

 
 
 
 

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

 
 
 
 

72. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

73. Coenogamete is found in:

 
 
 
 

74. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

79. Which is not true for Escherichia coli?

 
 
 
 

80. Cycas is :

 
 
 
 

81. Vascular cryptogams is the term used for:

 
 
 
 

82. Most of the algae are :

 
 
 
 

83. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

85. Botulinum toxin effects:

 
 
 
 

86. Parmelia belongs to :

 
 
 
 

87. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Which fixes atmospheric nitrogen?

 
 
 
 

91. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

96. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. Viruses have:

 
 
 
 

102. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

105. Which of the following are included in Tracheophyta?

 
 
 
 

106. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

109. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

111. Which of the following are absent in Mycoplasma?

 
 
 
 

112. Reproduction in Rhizopus is:

 
 
 
 

113. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

115. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

117. The mycelium of Rhizopus is:

 
 
 
 

118. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

120. Which is absent from the xylem of Cycas?

 
 
 
 

121. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

123. Heterosporous pteridophytes always form:

 
 
 
 

124. Mycoplasma are:

 
 
 
 

125. Which condition is found in Cycas?

 
 
 
 

126. Iodine is obtained from:

 
 
 
 

127. Placenta in fern is:

 
 
 
 

128. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

135. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

137. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

142. Gametophyte is the main plant body in :

 
 
 
 

143. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

145. Nitrifying bacteria play an important role by converting:

 
 
 
 

146. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

148. LSD is:

 
 
 
 

149. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

151. The lambda phase is a:

 
 
 
 

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

 
 
 
 

153. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

155. The first to isolate a plant virus was:

 
 
 
 

156. Broad spectrum antibiotic is, which:

 
 
 
 

157. The role of meiosis is for:

 
 
 
 

158. Acetobacter is useful in:

 
 
 
 

159. The term stele was given by:

 
 
 
 

160. Multicellular and jacketed sex organs are found in :

 
 
 
 

161. How is moss different from fern?

 
 
 
 

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

 
 
 
 

163. In a bacteriophage, DNA is present in:

 
 
 
 

164. Which bacteria convert nitrate into nitrogen?

 
 
 
 

165. Late blight of potato is caused by :

 
 
 
 

166. White rust of crucifers is caused by:

 
 
 
 

167. The stele of Dryopteris is a:

 
 
 
 

168. The source of litmus is :

 
 
 
 

169. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

171. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

173. Ovary is absent in :

 
 
 
 

174. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

175. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

177. Embryo formation is not known in :

 
 
 
 

178. What is the role of nitrifying bacteria?

 
 
 
 

179. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

181. Water bloom is generally caused by :

 
 
 
 

182. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

184. Rice, pea, potato are :

 
 
 
 

185. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

188. Iodine is obtained from :

 
 
 
 

189. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

191. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

192. Total parasites belong to:

 
 
 
 

193. The largest alga is:

 
 
 
 

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

 
 
 
 

195. Wine turns sour because of:

 
 
 
 

196. Bacteriophage consists of:

 
 
 
 

197. The spur of Pinus roxburghii has :

 
 
 
 

198. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

200. Rhizopus and yeast are usually:

 
 
 
 

201. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

211. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

214. Which part of Riccia bears nurse cells?

 
 
 
 

215. The sexual reproductive organs in Rhizopus are:

 
 
 
 

216. . Tapetum develops in:

 
 
 
 

217. The seedless plants which possess vascular tissues are:

 
 
 
 

218. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

220. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

226. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

228. 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:

 
 
 
 

229. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

232. Common phycobiont in a lichen is :

 
 
 
 

233. The leafy fern plant represents the:

 
 
 
 

234. Spirogyra represents the :

 
 
 
 

235. Virus and bacteriophage are made-up of:

 
 
 
 

236. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

239. Vascular cryptogam is the term used for :

 
 
 
 

240. In moss, calyptra is formed from:

 
 
 
 

241. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

243. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. Where does meiosis occur in yeast?

 
 
 
 

249. Generic name of mango is:

 
 
 
 

250. What is a vector?

 
 
 
 

251. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

253. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

258. Lichens are indicators of :

 
 
 
 

259. Endemic plants are characterised by their:

 
 
 
 

260. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

262. Which statement is wrong in regard to bacteria?

 
 
 
 

263. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

265. Cycas is different from mango in :

 
 
 
 

266. The teeth of peristome of Funaria are :

 
 
 
 

267. Which class of Protozoa includes all parasitic forms?

 
 
 
 

268. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

271. Male gametes in Dryopteris are:

 
 
 
 

272. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. Which of the following is sago palm?

 
 
 
 

276. Most primitive group of vascular plants are:

 
 
 
 

277. The fungi are mostly:

 
 
 
 

278. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. Chemosynthetic bacteria are:

 
 
 
 

282. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

284. Desired type of Cycas can be grown by:

 
 
 
 

285. Pollination drop is:

 
 
 
 

286. Oswald Tippo’s classification was based on :

 
 
 
 

287. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

291. Gymnosperms could also be called as:

 
 
 
 

292. Redness of red sea is due to :

 
 
 
 

293. Which causes red tide?

 
 
 
 

294. Ergot is obtained from :

 
 
 
 

295. Green plants are classified as :

 
 
 
 

296. Which of the following is true for Selaginella?

 
 
 
 

297. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

299. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

302. Black rust of wheat is caused by:

 
 
 
 

303. The most primitive vascular plants is:

 
 
 
 

304. Cellular slime mold is:

 
 
 
 

305. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

307. Germ theory of disease was proposed by:

 
 
 
 

308. Citrus canker is caused by:

 
 
 
 

309. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

311. The tree fern is:

 
 
 
 

312. Sporophyte of fern is:

 
 
 
 

313. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

314. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

317. Which of the following are included in Tracheophyta?

 
 
 
 

318. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

321. Which one of the following is a monocot?

 
 
 
 

322. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

325. Pteridophytes are also known as :

 
 
 
 

326. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. Pinus is:

 
 
 
 

333. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

341. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

344. The similarity between cyanobacteria and bacteria:

 
 
 
 

345. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

347. Viruses are considered to be:

 
 
 
 

348. The archegonia in Selaginella develop on:

 
 
 
 

349. In moss, sporogenous tissue arises from:

 
 
 
 

350. Club moss and Peat moss belong to:

 
 
 
 

351. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

352. Majority of lichens are :

 
 
 
 

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

 
 
 
 

354. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

362. Antibiotics cure the disease by:

 
 
 
 

363. In Gymnosperms endosperm is a:

 
 
 
 

364. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

367. Winged seeds are found in :

 
 
 
 

368. Cleavage polyembryony is found in :

 
 
 
 

369. The nucleus of bacteria is:

 
 
 
 

370. Longest known virus is:

 
 
 
 

371. Penicillin is obtained from:

 
 
 
 

372. Linnaeus is credited with introducing:

 
 
 
 

373. Choose the correct statement about Spirogyra:

 
 
 
 

374. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. Maximum diversity of life forms occurs in :

 
 
 
 

379. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

381. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

383. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

385. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

388. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

390. Psilotum is:

 
 
 
 

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

 
 
 
 

392. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

394. In Cycas the fertilization is:

 
 
 
 

395. Funaria can be differentiated from Cycas :

 
 
 
 

396. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

399. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

402. Mycoplasma are sensitive to:

 
 
 
 

403. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

408. The archegonia of Selaginella are differentiated by:

 
 
 
 

409. Fruits are not found in:

 
 
 
 

410. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

412. Select the wrong statement:

 
 
 
 

413. Downy mildew disease is caused by :

 
 
 
 

414. The group algae possesses representatives belonging to kingdom:

 
 
 
 

415. Pasteur is famous for his:

 
 
 
 

416. Virion refers to:

 
 
 
 

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

 
 
 
 

418. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

420. Fern prothallus is:

 
 
 
 

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

 
 
 
 

422. The antherozoids of Funaria are :

 
 
 
 

423. 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:

 
 
 
 

424. One of the distinctive feature of Spirogyra is :

 
 
 
 

425. Standard size of a herbarium sheet is:

 
 
 
 

426.

427. Protozoans are considered animals because these are:

 
 
 
 

428. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

430. Which is the correct statement about Selaginella?

 
 
 
 

431. Reserve food in Euglena is:

 
 
 
 

432. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

435. Protists which are diploid reproduce sexually by:

 
 
 
 

436. Seeds are characteristically found in:

 
 
 
 

437. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

440. Spermatophyta are characterized by producing:

 
 
 
 

441. In moss, peristomial teeth are:

 
 
 
 

442. Mycoplasma contains:

 
 
 
 

443. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

446. In binomial system most of the words are:

 
 
 
 

447. Soil fertility is lost by the activities of:

 
 
 
 

448. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

449. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

451. What is absent in Deuteromycetes?

 
 
 
 

452. Usually, bacteria reproduce by:

 
 
 
 

453. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

455. Pinus microsporophyll bears:

 
 
 
 

456. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

458. Bryophyta have a special character from other plants:

 
 
 
 

459. Embryophyta includes:

 
 
 
 

460. Metulae are found in:

 
 
 
 

461. The largest known bacterium is:

 
 
 
 

462. Mycoplasma was discovered by:

 
 
 
 

463. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

465. Aflatoxin is produced as a product in :

 
 
 
 

466. Which of the following is a parasitic algae?

 
 
 
 

467. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

469. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

471. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

473. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

475. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

477. Sporophyte of Funaria is :

 
 
 
 

478. Among the algae kelps are :

 
 
 
 

479. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

481. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

484. Black rust of wheat is caused by:

 
 
 
 

485. The young leaves of Cycas have :

 
 
 
 

486. The mode of nutrition of bacteria is usually:

 
 
 
 

487. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

489. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

492. Viroids have:

 
 
 
 

493. The truncated cone of HIV consists of:

 
 
 
 

494. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

501. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

503. Plasmids are:

 
 
 
 

504. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

509. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

511. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514. Viruses are commonly transmitted in plants through:

 
 
 
 

515. Which of the following does not contain chlorophyll?

 
 
 
 

516. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. Pneumonia is caused by:

 
 
 
 

522. The ferns are usually found:

 
 
 
 

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

 
 
 
 

524.

 

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

 
 
 
 

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

 
 
 
 

527. Late blight of potato is caused by:

 
 
 
 

528.

529. All protozoans possess:

 
 
 
 

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

 
 
 
 

531. 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?

 
 
 
 

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

 
 
 
 

533. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

535. Bacteriophages have been used as:

 
 
 
 

536. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

539. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

541. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

547. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

551. Cell walls of Gram-positive bacteria contain:

 
 
 
 

552. Lichens form the first community in

 
 
 
 

553. Meiosis in Ulothrix takes place:

 
 
 
 

554. The DNA of E coli is:

 
 
 
 

555. Disease resistant plant varieties can be produced by :

 
 
 
 

556. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

558. Ginkgo biloba is a:

 
 
 
 

559. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

561. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

562. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

565. How a fern differs from a moss?

 
 
 
 

566. Halophiles are the bacteria that require for growth:

 
 
 
 

567. Which of the following applies to Selaginella?

 
 
 
 

568. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. Water-borne bacterial diseases are:

 
 
 
 

573. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

576. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

578. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

580. Clostridium can:

 
 
 
 

581. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

583. The chief characteristic of class Ascomycetes is:

 
 
 
 

584. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

586. Leaf spot of groundnut is caused by :

 
 
 
 

587. Antibiotic has been extracted from :

 
 
 
 

588. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

590. In Cycas microsporangia are borne on:

 
 
 
 

591. The disease symptom necrosis refers to :

 
 
 
 

592. Mycoplasmas are not viruses in nature because:

 
 
 
 

593. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

597. Aflatoxin is produced by:

 
 
 
 

598. The chromosomal number in:

 
 
 
 

599. 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:

 
 
 
 

600. Siphonogamy is found in:

 
 
 
 

601. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

605. Facultative parasite is:

 
 
 
 

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

 
 
 
 

607. Vascular tissue is found in :

 
 
 
 

608. Which is a gametophytic tissue?

 
 
 
 

609. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

612. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

613. Streptomyces falls under:

 
 
 
 

614. NBG of Lucknow is now named as:

 
 
 
 

615. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

617. In Cycas which structure is equivalent to stamen?

 
 
 
 

618. Pinus gerardiana is :

 
 
 
 

619. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

621. 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:

 
 
 
 

622. Ergot of rye is caused by:

 
 
 
 

623. The order generally ends with:

 
 
 
 

624. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

625. Nannandria are:

 
 
 
 

626. The sporangiophores in Rhizopus are:

 
 
 
 

627. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

632. The photosynthetic protists are:

 
 
 
 

633. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

638. Nitrogen-fixing bacteria may be located:

 
 
 
 

639. Discovery of penicillin was based on:

 
 
 
 

640. TMV was isolated in crystalline form by:

 
 
 
 

641. 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:

 
 
 
 

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

 
 
 
 

643. In Selaginella, the microsporangia are:

 
 
 
 

644. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

646. Pteridophyta are also called:

 
 
 
 

647. Most resistant spore in bacteria is:

 
 
 
 

648. Yeast is a source of:

 
 
 
 

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

 
 
 
 

650. Cryptogams include :

 
 
 
 

651. Transfusion tissue is present in the leaflet of:

 
 
 
 

652. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

654. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

659. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

660. Detailed study of bacteriophage was made by:

 
 
 
 

661. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

665. Lichens show :

 
 
 
 

666. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

668. Meristele of fern is:

 
 
 
 

669. Selaginella differs from Moss in having:

 
 
 
 

670. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

671. Acellular slime mold is/are:

 
 
 
 

672. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

674. Which group of algae have an incipient nucleus?

 
 
 
 

675. Red rot of sugarcane is caused by :

 
 
 
 

676. The sori in Dryopteris are found on:

 
 
 
 

677. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

679. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

681. Red rot of sugarcane is caused by :

 
 
 
 

682. The fern plant is:

 
 
 
 

683. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

685. Fern phloem lacks:

 
 
 
 

686. Methanogens belong to:

 
 
 
 

687. Pythium debaryanum is the causative agent of:

 
 
 
 

688. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

690. Enzymes are absent in:

 
 
 
 

691. Fruits are not found in :

 
 
 
 

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

 
 
 
 

693. Fairy ring is the name given to:

 
 
 
 

694. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

697. The genetic material of poxvirus is:

 
 
 
 

698. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

701. All algae have:

 
 
 
 

702. The development of sporangium in Selaginella is:

 
 
 
 

703. Kuru, a human disease is caused by:

 
 
 
 

704. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

705. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

707. Why is Cycas called a living fossil?

 
 
 
 

708. Typhoid in man is caused by:

 
 
 
 

709. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

711. The spermatozoids of Cycas are :

 
 
 
 

712. Cycas is similar to a mustard plant :

 
 
 
 

713. Spirogyra differs from moss protonema in having :

 
 
 
 

714. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

716. Banana bunchy top is caused by :

 
 
 
 

717. Some diseases caused by bacteria are:

 
 
 
 

718. The upper region of moss capsule is :

 
 
 
 

719. Who discovered heterothallism in fungi?

 
 
 
 

720. Azolla growing in paddy fields helps in:

 
 
 
 

721. Cyathia is characterized by:

 
 
 
 

722. Cycas is:

 
 
 
 

723. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

725. Sexual reproduction of lichen is due to :

 
 
 
 

726. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. Chief constituents of bordeaux mixture are :

 
 
 
 

730. Fern plants are:

 
 
 
 

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

 
 
 
 

732. The sporophyte of Riccia is represented by :

 
 
 
 

733. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

735. Funaria is :

 
 
 
 

736. Who named prion?

 
 
 
 

737. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

739. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

741. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

745. The two conjugating gametangia of Rhizopus are:

 
 
 
 

746. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

750. Heterospory is the production of:

 
 
 
 

751. Lichen show :

 
 
 
 

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

 
 
 
 

753. The leaf of Cycas shows:

 
 
 
 

754. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. What are Cyanobacteria?

 
 
 
 

758. The orders generally have the uniform endings:

 
 
 
 

759. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

761. The coralloid roots are :

 
 
 
 

762. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

764. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

766. Funaria are commonly found :

 
 
 
 

767. Circular DNA is seen in:

 
 
 
 

768. 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?

 
 
 
 

769. Economic importance of bacteria lies in their being:

 
 
 
 

770. The prothallus of fern represents the plant:

 
 
 
 

771. Lichens reproduce by :

 
 
 
 

772. Pseudomycelium is found in:

 
 
 
 

773. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

776. Saccharomyces is used in:

 
 
 
 

777. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

780. In moss, reduction division occurs in :

 
 
 
 

781. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

786. Interferon is a:

 
 
 
 

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

 
 
 
 

788. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. The fungi are usually:

 
 
 
 

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

 
 
 
 

794. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

796. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

798. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

799. The roots of Cycas are :

 
 
 
 

800. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

802. Gram stain is used to:

 
 
 
 

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

 
 
 
 

804.

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

 
 
 
 

806. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

807. Fertility of the soil is increased by:

 
 
 
 

808. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

811. Lichens are pioneers of vegetation in a :

 
 
 
 

812. Most primitive kind of flower is represented by:

 
 
 
 

813. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

815. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

817. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

824. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

826. Synzoospore is produced in:

 
 
 
 

827. The sporangia of Selaginella are attached:

 
 
 
 

828. Ulothrix produces :

 
 
 
 

829. In dinoflagellates, the two flagella are:

 
 
 
 

830. The antibiotic is obtained from:

 
 
 
 

831. Sometimes the bacterial cell is enclosed in:

 
 
 
 

832. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

836. An alga which is rich in proteins:

 
 
 
 

837. Indusium in Dryopteris is:

 
 
 
 

838. Some biologists have used the term Mycetozoa for:

 
 
 
 

839. Etiology includes the study of :

 
 
 
 

840. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

842. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

844. The tallest moss in the world is :

 
 
 
 

845. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

848. Yeast belongs to class:

 
 
 
 

849. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

850. Lichens are ecologically important because :

 
 
 
 

851. Early blight of potato is caused by:

 
 
 
 

852. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

857. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. Select the wrong statement:

 
 
 
 

864. Botulism is a: