Quiz_Random

1. The DNA of E coli is:

 
 
 
 

2. Select the correct statement: (NEET 2016)

 
 
 
 

3. Spores of which plants have chloroplast:

 
 
 
 

4. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

6. Antibiotics cure the disease by:

 
 
 
 

7. The word “sea weeds” is used for:

 
 
 
 

8. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Cycas plant in appearance resembles :

 
 
 
 

12. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

14. Linnaeus is credited with introducing:

 
 
 
 

15. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

18. Lichens are the indicator of pollution :

 
 
 
 

19. Asexual reproductive body of Volvox is called:

 
 
 
 

20. Most primitive embryophytes are placed in :

 
 
 
 

21. The teeth of peristome of Funaria are :

 
 
 
 

22. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. One of the distinctive feature of Spirogyra is :

 
 
 
 

26. Protozoans are considered animals because these are:

 
 
 
 

27. Water bloom is generally caused by :

 
 
 
 

28. Interferon is a:

 
 
 
 

29. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. In Gymnocarpeae the fruiting body is :

 
 
 
 

33. Black rust of wheat is caused by:

 
 
 
 

34. Anoxygenic photosynthesis occurs in:

 
 
 
 

35. Downy mildew disease is caused by :

 
 
 
 

36. Parmelia belongs to :

 
 
 
 

37. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

38. Chemosynthetic bacteria are:

 
 
 
 

39. Smut of maize is caused by :

 
 
 
 

40. Rhizopus belongs to:

 
 
 
 

41. The leafy fern plant represents the:

 
 
 
 

42. Fern prothallus is:

 
 
 
 

43. Gymnosperms could also be called as:

 
 
 
 

44. Among the algae kelps are :

 
 
 
 

45. The ascus of yeast contains:

 
 
 
 

46. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

54. Ergot of rye is caused by:

 
 
 
 

55. Mycoplasma are:

 
 
 
 

56. Most of the lichens are composed of :

 
 
 
 

57. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

59. The chloroplast in Ulothrix is :

 
 
 
 

60. Infective part of virus was discovered by:

 
 
 
 

61. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

63. The chromosomal number in:

 
 
 
 

64. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

66. Fruits are not found in:

 
 
 
 

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

 
 
 
 

68. Simple polyembryony is found in :

 
 
 
 

69. Penicillin was discovered by:

 
 
 
 

70. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. The mycelium of Rhizopus is:

 
 
 
 

74. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

76. Ovules are not found enclosed in ovary of:

 
 
 
 

77. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

79. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

81. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

83. The disease apple scab is caused by:

 
 
 
 

84. Mucilaginous canals in Cycas are found in :

 
 
 
 

85. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

87. The antherozoids of Funaria are :

 
 
 
 

88. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

90. Ovary is absent in:

 
 
 
 

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

 
 
 
 

92. Club moss and Peat moss belong to:

 
 
 
 

93. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

103. How is moss different from fern?

 
 
 
 

104. Cycas is:

 
 
 
 

105. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

107. The leaf of Cycas shows:

 
 
 
 

108. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

110. Which of the following statements is not correct?

 
 
 
 

111. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

113. 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:

 
 
 
 

114. In Cycas:

 
 
 
 

115. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

117. Generic name of mango is:

 
 
 
 

118. In moss, reduction division occurs in :

 
 
 
 

119. Pollination drop is:

 
 
 
 

120. Milk is converted to curd by:

 
 
 
 

121. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

122. The tree fern is:

 
 
 
 

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

 
 
 
 

124. Gram stain is used to:

 
 
 
 

125. Streptomycin is obtained from:

 
 
 
 

126. Saccharomyces ludwigii ascus produces:

 
 
 
 

127. Heterospory and ligulate leaves are a feature of:

 
 
 
 

128. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

131. Which bacteria convert nitrate into nitrogen?

 
 
 
 

132. Which of the following is sago palm?

 
 
 
 

133. Male gametes in Dryopteris are:

 
 
 
 

134. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. Some diseases caused by bacteria are:

 
 
 
 

139. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

141. Bacteria are considered to be plants because they:

 
 
 
 

142. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

144. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

155. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

157. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

160. The fungi are mostly:

 
 
 
 

161. Lichens form the first community in

 
 
 
 

162. Some biologists have used the term Mycetozoa for:

 
 
 
 

163. Botulinum toxin effects:

 
 
 
 

164. Endemic plants are characterised by their:

 
 
 
 

165. The fern plant is:

 
 
 
 

166. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

168. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

170. Cyanophage is a virus that attacks:

 
 
 
 

171. Pteridophyta are also called:

 
 
 
 

172. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

175. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

178. The sori in Dryopteris are found on:

 
 
 
 

179. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

181. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. What is mycorrhiza?

 
 
 
 

185. The fungi are usually:

 
 
 
 

186. Gametophyte is the main plant body in :

 
 
 
 

187. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

190. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

192. Lichens are ecologically important because :

 
 
 
 

193. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

195. Pasteurization of milk involves heating for:

 
 
 
 

196. Pinus is:

 
 
 
 

197. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

202. Which is a fungicide?

 
 
 
 

203. Funaria is :

 
 
 
 

204. Heterosporous pteridophytes always form:

 
 
 
 

205. Liverworts are included in :

 
 
 
 

206. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

209. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

211. Banana bunchy top is caused by :

 
 
 
 

212. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

214. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

217. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

222. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

224. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

226. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

229. Yeast is a source of:

 
 
 
 

230. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

231. To which country Antony van Leeuwenhoek belong?

 
 
 
 

232. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

239. Pinus microsporophyll bears:

 
 
 
 

240. Meristele of fern is:

 
 
 
 

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

 
 
 
 

242. 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:

 
 
 
 

243. Cocci types of bacteria are:

 
 
 
 

244. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

246. The largest known bacterium is:

 
 
 
 

247. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

249. The Rhizopus gametes are formed in:

 
 
 
 

250. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

252. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

254. Fern phloem lacks:

 
 
 
 

255. Heterospory is the production of:

 
 
 
 

256. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

258. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

260. What is streptomycin?

 
 
 
 

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

 
 
 
 

262. In binomial system most of the words are:

 
 
 
 

263. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

265. Total parasites belong to:

 
 
 
 

266. Mycoplasma is different from bacteria due to:

 
 
 
 

267. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

269. Which is not true for Escherichia coli?

 
 
 
 

270. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

272. Oswald Tippo’s classification was based on :

 
 
 
 

273. The sporangium of fern contains nearly:

 
 
 
 

274. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

276. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

278. The development of Selaginella embryo is:

 
 
 
 

279. Broad spectrum antibiotic is, which:

 
 
 
 

280. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

282. Who among the following discovered virus?

 
 
 
 

283. 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:

 
 
 
 

284. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

287. Sexual reproduction in Rhizopus is by:

 
 
 
 

288. Protistan algae obtain their food as:

 
 
 
 

289. Clostridium can:

 
 
 
 

290. The Rhizopus is:

 
 
 
 

291. Nannandria are:

 
 
 
 

292. Pythium debaryanum is the causative agent of:

 
 
 
 

293. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

296. Lichens reproduce by :

 
 
 
 

297. Reproduction in Rhizopus is:

 
 
 
 

298. Diploxylic vascular bundles are found in:

 
 
 
 

299. Cryptogams include :

 
 
 
 

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

 
 
 
 

301. Rice, pea, potato are :

 
 
 
 

302. Leprosy is caused by:

 
 
 
 

303. Which of the following have a prokaryotic cell?

 
 
 
 

304. Pneumonia is caused by:

 
 
 
 

305. In Pteris, the archegonia are present:

 
 
 
 

306. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

307. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

309. Plasmids are:

 
 
 
 

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

 
 
 
 

311. Mycoplasma contains:

 
 
 
 

312. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

314. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

316. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. Most primitive kind of flower is represented by:

 
 
 
 

320. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

322. The most important property of yeast is:

 
 
 
 

323.

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

 
 
 
 

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

 
 
 
 

326. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. Which is an exception to cell theory?

 
 
 
 

330. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. Red rot of sugarcane is caused by :

 
 
 
 

337. Lichens reproduce by :

 
 
 
 

338. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

340. Ginkgo biloba is a:

 
 
 
 

341. LSD is:

 
 
 
 

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

 
 
 
 

343. Which of the following are included in Tracheophyta?

 
 
 
 

344. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. Pteridophytes are also known as :

 
 
 
 

349. Pasteurized milk is:

 
 
 
 

350. Lichens are indicators of :

 
 
 
 

351. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

352. E coli is a:

 
 
 
 

353. Sometimes the bacterial cell is enclosed in:

 
 
 
 

354. Genetic material of TMV is:

 
 
 
 

355. Agar-agar is obtained from:

 
 
 
 

356. The truncated cone of HIV consists of:

 
 
 
 

357. Which of the following applies to Selaginella?

 
 
 
 

358. Aflatoxin is produced as a product in :

 
 
 
 

359. Cycas is :

 
 
 
 

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

 
 
 
 

361. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

366. What is a vector?

 
 
 
 

367. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

369. Fertility of the soil is increased by:

 
 
 
 

370. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

372. 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?

 
 
 
 

373. Which of the following is a parasitic algae?

 
 
 
 

374. Bacteriophages have been used as:

 
 
 
 

375. The spermatozoids of Cycas are :

 
 
 
 

376. The largest alga is:

 
 
 
 

377. Methanogens belong to:

 
 
 
 

378. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

380. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

382. Roots are absent in :

 
 
 
 

383. The prothallus of fern is:

 
 
 
 

384. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

386. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

389. Bacteria which are spherical are called:

 
 
 
 

390. The smallest bacterium is:

 
 
 
 

391. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

393. Winged pollen grains are found in :

 
 
 
 

394. Penicillin is obtained from:

 
 
 
 

395. Number of capsomeres forming capsid of TMV is:

 
 
 
 

396. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

399. Selaginella differs from Moss in having:

 
 
 
 

400. The chloroplast of Chlamydomonas are:

 
 
 
 

401. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

403. Aflatoxin is produced by:

 
 
 
 

404. Yeast grows more rapidly in:

 
 
 
 

405. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

410. NBG of Lucknow is now named as:

 
 
 
 

411. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

413. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

417. 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:

 
 
 
 

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

 
 
 
 

419. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

421. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

427. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

430. Placenta in fern is:

 
 
 
 

431. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

433. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

435. Ectocarpus produces:

 
 
 
 

436. Usually, bacteria reproduce by:

 
 
 
 

437. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

440. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

443. The leaves of Funaria are :

 
 
 
 

444. Facultative parasite is:

 
 
 
 

445. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

447. The source of litmus is :

 
 
 
 

448. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. Photosynthetic protists belong to:

 
 
 
 

452. Bentham and Hooker placed gymnosperms:

 
 
 
 

453. Citrus canker is caused by :

 
 
 
 

454. Which of the following is true for Selaginella?

 
 
 
 

455. Majority of lichens are :

 
 
 
 

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

 
 
 
 

457. What are Cyanobacteria?

 
 
 
 

458. 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?

 
 
 
 

459. Vascular tissue is found in :

 
 
 
 

460. Proembryo in Pinus is :

 
 
 
 

461. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

464. Polystelic condition is found in:

 
 
 
 

465. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

467. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

470. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

472. Viruses have:

 
 
 
 

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

 
 
 
 

474. Bivalved siliceous shell or frustule occur in:

 
 
 
 

475. In angiosperms double fertilization represents:

 
 
 
 

476. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

479. The sporangia of Selaginella are attached:

 
 
 
 

480. Little leaf disease of Brinjal is caused by:

 
 
 
 

481. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

484. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

487. Select the wrong statement:

 
 
 
 

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

 
 
 
 

489. Who named prion?

 
 
 
 

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

 
 
 
 

491. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

493.

494. Which of the following are included in Tracheophyta?

 
 
 
 

495. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

499. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

501. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

503. Yeast belongs to class:

 
 
 
 

504. The sporophyte of Riccia is represented by :

 
 
 
 

505. Spermatophyta are characterized by producing:

 
 
 
 

506. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

508. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

510. An Hfr bacterium is one that contains:

 
 
 
 

511. The sporophyte of Riccia is :

 
 
 
 

512. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

514. The archegonia of Selaginella are differentiated by:

 
 
 
 

515. The role of meiosis is for:

 
 
 
 

516. Sporophyte of Funaria is :

 
 
 
 

517. Economic importance of bacteria lies in their being:

 
 
 
 

518. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

519. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

522. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

524. Viruses are commonly transmitted in plants through:

 
 
 
 

525. The fungi that grow on wood are called:

 
 
 
 

526. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

527. The ferns are usually found:

 
 
 
 

528. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

530. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

531. Ethylene oxide is widely used to:

 
 
 
 

532. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. In a bacteriophage, DNA is present in:

 
 
 
 

538. Azolla and Salvinia both are:

 
 
 
 

539. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. In Cycas which structure is equivalent to stamen?

 
 
 
 

543. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

545. Sexual reproduction of lichen is due to :

 
 
 
 

546. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

547. The photosynthetic protists are:

 
 
 
 

548. A gill of Agaricus:

 
 
 
 

549. Which statement is wrong in regard to bacteria?

 
 
 
 

550. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

552. What is the role of nitrifying bacteria?

 
 
 
 

553. In moss, sporogenous tissue arises from:

 
 
 
 

554. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

556. Sporophyte of fern is:

 
 
 
 

557. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

559. What are plasmids?

 
 
 
 

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

 
 
 
 

561. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

563. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

566. Isomorphic type alternation of generation is found in:

 
 
 
 

567. In dinoflagellates, the two flagella are:

 
 
 
 

568. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

571. In moss, calyptra is formed from:

 
 
 
 

572. Seeds are characteristically found in :

 
 
 
 

573. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

575. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. In Herpes virus DNA is:

 
 
 
 

579. Acetobacter is useful in:

 
 
 
 

580. Citrus canker is caused by:

 
 
 
 

581. In tracheophyta:

 
 
 
 

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

 
 
 
 

583. The lambda phase is a:

 
 
 
 

584. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

585. Coenogamete is found in:

 
 
 
 

586. The group algae possesses representatives belonging to kingdom:

 
 
 
 

587. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590.

 

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

 
 
 
 

592. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

596. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

599. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

601. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

604. Chemosynthetic bacteria are:

 
 
 
 

605. Viroids have:

 
 
 
 

606. Lichen show :

 
 
 
 

607. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

609. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

611. Which have the largest antherozoid?

 
 
 
 

612. Cellular slime mold is:

 
 
 
 

613. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

615. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. Metulae are found in:

 
 
 
 

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

 
 
 
 

620. In Funaria :

 
 
 
 

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

 
 
 
 

622. The two conjugating gametangia of Rhizopus are:

 
 
 
 

623. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

625. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

627. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

628. In Selaginella, the microsporangia are:

 
 
 
 

629. Fairy ring is the name given to:

 
 
 
 

630. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

632. Virus and bacteriophage are made-up of:

 
 
 
 

633. Vegetative reproduction in Cycas is by means of :

 
 
 
 

634. In Cycas the fertilization is:

 
 
 
 

635. The seedless plants which possess vascular tissues are:

 
 
 
 

636. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

639. The order generally ends with:

 
 
 
 

640. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. Germination of the seed of Pinus is :

 
 
 
 

644. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

650. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

652. Each chloroplast in Spirogyra bears :

 
 
 
 

653. Green plants are classified as:

 
 
 
 

654. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

657. In Cycas microsporangia are borne on:

 
 
 
 

658. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

662. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

665. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

668. 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?

 
 
 
 

669. Climbers are found in genus:

 
 
 
 

670. The megasporangium of Selaginella is:

 
 
 
 

671. Who discovered streptomycin?

 
 
 
 

672. Cycas revoluta is widely grown as :

 
 
 
 

673. Embryo formation is not known in :

 
 
 
 

674. The prothallus of fern represents the plant:

 
 
 
 

675. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

677. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

682. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

684. Fruiting body of lichens is :

 
 
 
 

685. How a fern differs from a moss?

 
 
 
 

686. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

688. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

692. Lichens show :

 
 
 
 

693. Circular DNA is seen in:

 
 
 
 

694. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

700. Red rot of sugarcane is caused by :

 
 
 
 

701. Embryophyta includes:

 
 
 
 

702.

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

 
 
 
 

704. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

706. Seeds are characteristically found in:

 
 
 
 

707. Select the wrong statement:

 
 
 
 

708. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

711. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. Ulothrix produces :

 
 
 
 

715. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

718. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

720. Water-net is the name of:

 
 
 
 

721. The middle sterile part of capsule is called:

 
 
 
 

722. All protozoans possess:

 
 
 
 

723. True sexuality is not found in:

 
 
 
 

724. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. All algae have:

 
 
 
 

730. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

734. Virion refers to:

 
 
 
 

735. Synzoospore is produced in:

 
 
 
 

736. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

737. Fern prothallus produces:

 
 
 
 

738. The flagella of Chlamydomonas are:

 
 
 
 

739. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

741. Which is a gametophytic tissue?

 
 
 
 

742. The fungi used as food are:

 
 
 
 

743. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

745. First animal pathogenic virus was discovered by:

 
 
 
 

746. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

749. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. Bacteria differ from viruses in being sensitive to:

 
 
 
 

753. Bacteriophage consists of:

 
 
 
 

754. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. In moss, stomata are found:

 
 
 
 

758. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

761. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

763. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

766. Small epidermal swellings due to infection are called :

 
 
 
 

767. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. Reserve food in Euglena is:

 
 
 
 

772. The development of sporangium in Selaginella is:

 
 
 
 

773. The first to isolate a plant virus was:

 
 
 
 

774. To which class Riccia belongs :

 
 
 
 

775. Cycas is different from mango in :

 
 
 
 

776. Protists which are diploid reproduce sexually by:

 
 
 
 

777. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

779. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

783. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

786. 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:

 
 
 
 

787. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

789. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

793. Cell walls of Gram-positive bacteria contain:

 
 
 
 

794. Which of the following have algal zone?

 
 
 
 

795. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

797. Black rust of wheat is caused by:

 
 
 
 

798. Quarantine regulations are concerned with:

 
 
 
 

799. Psilotum is:

 
 
 
 

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

 
 
 
 

801. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

805. Which class of Protozoa includes all parasitic forms?

 
 
 
 

806. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

808. Which is a tautonym?

 
 
 
 

809. Which of the following is a monocot?

 
 
 
 

810. Late blight of potato is caused by :

 
 
 
 

811. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

813. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

814. 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:

 
 
 
 

815. In moss, conducting tissue is made up of

 
 
 
 

816. Kuru, a human disease is caused by:

 
 
 
 

817. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

820. Funaria is :

 
 
 
 

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

 
 
 
 

822. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

824. Cap cells are found in the filament of:

 
 
 
 

825. Maximum diversity of life forms occurs in :

 
 
 
 

826. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

829. Which of the following are absent in Mycoplasma?

 
 
 
 

830. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

832. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

835. Nitrifying bacteria play an important role by converting:

 
 
 
 

836. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

841. Botulism is a:

 
 
 
 

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

 
 
 
 

843. Ovary is absent in :

 
 
 
 

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

 
 
 
 

845. Which is the correct statement about Selaginella?

 
 
 
 

846. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

848. The gametophyte of fern bears:

 
 
 
 

849. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

851. The roots of Cycas are :

 
 
 
 

852. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

855. Enteric bacteria are those bacteria that live:

 
 
 
 

856. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

859. Smallpox is caused by:

 
 
 
 

860. Fruits are not found in :

 
 
 
 

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

 
 
 
 

862. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

864. Mostly type of zygospore in Ulothrix is: