Quiz_Random

1. Standard size of a herbarium sheet is:

 
 
 
 

2. Which is not found in bacteria?

 
 
 
 

3. In dinoflagellates, the two flagella are:

 
 
 
 

4. The smallest bacterium is:

 
 
 
 

5. 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?

 
 
 
 

6. Streptomyces falls under:

 
 
 
 

7. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

9. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

11. Who discovered cyanophages?

 
 
 
 

12. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. Which of the following is true for viruses?

 
 
 
 

17. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Botulism is a:

 
 
 
 

23. Ovules are not found enclosed in ovary of:

 
 
 
 

24. The Rhizopus is:

 
 
 
 

25. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

27. Select the correct statement: (NEET 2016)

 
 
 
 

28. Ovary is absent in :

 
 
 
 

29. Some diseases caused by bacteria are:

 
 
 
 

30. The order generally ends with:

 
 
 
 

31. Sleeping sickness disease in man is caused by:

 
 
 
 

32. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Which is a gametophytic tissue?

 
 
 
 

37. The ascus of yeast contains:

 
 
 
 

38. What are plasmids?

 
 
 
 

39. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Which of the following are included in Tracheophyta?

 
 
 
 

43. Which is a fungicide?

 
 
 
 

44. The coralloid roots are :

 
 
 
 

45. Spirogyra represents the :

 
 
 
 

46. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Cycas is:

 
 
 
 

53. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

55. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Smallpox is caused by:

 
 
 
 

59. Bivalved siliceous shell or frustule occur in:

 
 
 
 

60. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

62. The truncated cone of HIV consists of:

 
 
 
 

63. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Some bacteria cannot be killed easily because of:

 
 
 
 

68. Club moss is the common name of :

 
 
 
 

69. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. Mycoplasma was discovered by:

 
 
 
 

73. In moss, sporogenous tissue arises from:

 
 
 
 

74. Meiosis in Ulothrix takes place:

 
 
 
 

75. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

77. The tree fern is:

 
 
 
 

78. Linnaeus is credited with introducing:

 
 
 
 

79. 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:

 
 
 
 

80. Pinus microsporophyll bears:

 
 
 
 

81. Among the algae kelps are :

 
 
 
 

82. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

84. Which group of algae have an incipient nucleus?

 
 
 
 

85. Bacteriophages have been used as:

 
 
 
 

86. In tracheophyta:

 
 
 
 

87. Each chloroplast in Spirogyra bears :

 
 
 
 

88. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

89. Reproduction in Rhizopus is:

 
 
 
 

90. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

92. 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:

 
 
 
 

93. Viroids have:

 
 
 
 

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

 
 
 
 

95. Azolla growing in paddy fields helps in:

 
 
 
 

96. Number of capsomeres forming capsid of TMV is:

 
 
 
 

97. The smallest unit of classification is:

 
 
 
 

98. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

100. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

102. Most primitive embryophytes are placed in:

 
 
 
 

103. In moss, reduction division occurs in :

 
 
 
 

104. The largest known bacterium is:

 
 
 
 

105. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

109. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. The genetic material of poxvirus is:

 
 
 
 

113. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

115. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

117. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

119. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

123. Ulothrix produces :

 
 
 
 

124. One of the distinctive feature of Spirogyra is :

 
 
 
 

125. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

126. Multicellular and jacketed sex organs are found in :

 
 
 
 

127. Who discovered streptomycin?

 
 
 
 

128. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

131. Placenta in fern is:

 
 
 
 

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

 
 
 
 

133. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

140. In Cycas:

 
 
 
 

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

 
 
 
 

142. All protozoans possess:

 
 
 
 

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

 
 
 
 

144. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. 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?

 
 
 
 

150. Black rust of wheat is caused by:

 
 
 
 

151. Chemosynthetic bacteria are:

 
 
 
 

152. The sporangiophores in Rhizopus are:

 
 
 
 

153. Genetic material of TMV is:

 
 
 
 

154.

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

 
 
 
 

156. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

158. Heterocysts are found in :

 
 
 
 

159. The phloem of vascular system of Cycas is :

 
 
 
 

160. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

162. Photosynthetic bacteria have:

 
 
 
 

163. Seeds are characteristically found in:

 
 
 
 

164. LSD is:

 
 
 
 

165. Bentham and Hooker placed gymnosperms:

 
 
 
 

166. In angiosperms double fertilization represents:

 
 
 
 

167. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

169. Vascular cryptogams is the term used for:

 
 
 
 

170. Gram stain is used to:

 
 
 
 

171. Bacteria growing on synthetic medium are called:

 
 
 
 

172. Most of the algae are :

 
 
 
 

173. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

176. The mycelium of Rhizopus is:

 
 
 
 

177. Select the wrong statement:

 
 
 
 

178. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

180. The sporophyte of Riccia is :

 
 
 
 

181. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

185. Rhizophore of Selaginella is:

 
 
 
 

186. Heterospory and ligulate leaves are a feature of:

 
 
 
 

187. Ovules are not found enclosed in ovary in :

 
 
 
 

188. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

190. Downy mildew disease is caused by :

 
 
 
 

191. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

194. Mycoplasma is different from bacteria due to:

 
 
 
 

195. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

197. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

199. Lichens show :

 
 
 
 

200. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

205. Smut of maize is caused by :

 
 
 
 

206. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

208. Heterosporous pteridophytes always form:

 
 
 
 

209. Bacteria were first discovered by:

 
 
 
 

210. Black rust of wheat is caused by:

 
 
 
 

211. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

215. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. In Gymnosperms endosperm is a:

 
 
 
 

224. Which is an exception to cell theory?

 
 
 
 

225. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

230. Pasteur is famous for his:

 
 
 
 

231. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

233. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

237. Discovery of penicillin was based on:

 
 
 
 

238. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

242. Iodine is obtained from :

 
 
 
 

243. Mycoplasma are:

 
 
 
 

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

 
 
 
 

245. Leprosy is caused by:

 
 
 
 

246. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

249. Red rot of sugarcane is caused by :

 
 
 
 

250. Amoeba is a member of the phylum:

 
 
 
 

251. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

253. Spirogyra differs from moss protonema in having :

 
 
 
 

254. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

258. Bacteriophage consists of:

 
 
 
 

259. Etiology includes the study of :

 
 
 
 

260. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

262. Azolla and Salvinia both are:

 
 
 
 

263. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

265. Synzoospore is produced in:

 
 
 
 

266. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

268. The alga, Spirogyra are found in :

 
 
 
 

269. The fern plant is:

 
 
 
 

270. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

276. Pseudomycelium is found in:

 
 
 
 

277. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

280. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

287. Facultative saprophyte is:

 
 
 
 

288. Lichen show :

 
 
 
 

289. Enteric bacteria are those bacteria that live:

 
 
 
 

290. Which is a redwood tree?

 
 
 
 

291. Lichens are ecologically important because :

 
 
 
 

292. Pythium debaryanum is the causative agent of:

 
 
 
 

293. In a diplontic life cycle:

 
 
 
 

294. Little leaf disease of Brinjal is caused by:

 
 
 
 

295. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299. Triple antigen injection or vaccine are for:

 
 
 
 

300. Who named prion?

 
 
 
 

301. In moss, peristomial teeth are:

 
 
 
 

302. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

304. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

306. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

308. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

310. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

314. Heterospory is the production of:

 
 
 
 

315. Ovary is absent in:

 
 
 
 

316. Water bloom is generally caused by :

 
 
 
 

317. The root nodules of leguminous plants contain:

 
 
 
 

318. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

322. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

323. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. Rhizopus belongs to:

 
 
 
 

327. Which statement is wrong in regard to bacteria?

 
 
 
 

328. 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:

 
 
 
 

329. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

331. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

333. Which of the following shows heterotrichous habit?

 
 
 
 

334. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

336. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

339. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

342. Ergot of rye is caused by:

 
 
 
 

343. Nannandria are:

 
 
 
 

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

 
 
 
 

345. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

347. Halophiles are the bacteria that require for growth:

 
 
 
 

348. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

351. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

353. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

356. Roots are absent in :

 
 
 
 

357. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

362. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

367. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

369. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

371. The development of sporangium in Selaginella is:

 
 
 
 

372. TMV was isolated in crystalline form by:

 
 
 
 

373. Maximum diversity of life forms occurs in :

 
 
 
 

374. Mycoplasmas are not viruses in nature because:

 
 
 
 

375. Liverworts are included in :

 
 
 
 

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

 
 
 
 

377. Which is not true for Escherichia coli?

 
 
 
 

378. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

383. What is streptomycin?

 
 
 
 

384. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

386. Who discovered heterothallism in fungi?

 
 
 
 

387. The male gametes of Pinus are :

 
 
 
 

388. Meristele of fern is:

 
 
 
 

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

 
 
 
 

390. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

392. The most important property of yeast is:

 
 
 
 

393. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

396. Fertility of the soil is increased by:

 
 
 
 

397. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

400. Lichens are indicators of :

 
 
 
 

401. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

402. Iodine is obtained from:

 
 
 
 

403. The leaves of Funaria are :

 
 
 
 

404. 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?

 
 
 
 

405. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

407. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

409. Nitrifying bacteria play an important role by converting:

 
 
 
 

410. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

412. The role of meiosis is for:

 
 
 
 

413. In binomial system most of the words are:

 
 
 
 

414. Yeast is a source of:

 
 
 
 

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

 
 
 
 

416. Late blight of potato is caused by :

 
 
 
 

417. Early blight of potato is caused by:

 
 
 
 

418. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

421. The flagella of Chlamydomonas are:

 
 
 
 

422. Water-borne bacterial diseases are:

 
 
 
 

423. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

425. Banana bunchy top is caused by :

 
 
 
 

426. The nucleus of bacteria is:

 
 
 
 

427. E coli is a:

 
 
 
 

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

 
 
 
 

429. Kuru, a human disease is caused by:

 
 
 
 

430. The DNA of E coli is:

 
 
 
 

431. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

433. Virus and bacteriophage are made-up of:

 
 
 
 

434. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

436. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

437. Antibiotics cure the disease by:

 
 
 
 

438. The lambda phase is a:

 
 
 
 

439. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

443. The spermatozoids of Cycas are :

 
 
 
 

444. Plasmids are:

 
 
 
 

445. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

447. Which fixes atmospheric nitrogen?

 
 
 
 

448. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

452. The archegonia of Selaginella are differentiated by:

 
 
 
 

453. The gametophyte of moss has distinct phases :

 
 
 
 

454. Oswald Tippo’s classification was based on :

 
 
 
 

455. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

457. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

459. Photoautotrophic bacteria have:

 
 
 
 

460. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

462. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

464. Which of the following is sago palm?

 
 
 
 

465. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

466. Citrus canker is caused by:

 
 
 
 

467. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

469. Fern prothallus is:

 
 
 
 

470. Viruses are commonly transmitted in plants through:

 
 
 
 

471. Green plants are classified as:

 
 
 
 

472. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

476. An Hfr bacterium is one that contains:

 
 
 
 

477. All algae have:

 
 
 
 

478. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

480. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

482. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

487. Yeast grows more rapidly in:

 
 
 
 

488. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

491. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

493. The most primitive vascular plants is:

 
 
 
 

494. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

496. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

500. Botulinum toxin effects:

 
 
 
 

501. Streptomycin is obtained from:

 
 
 
 

502. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

504. Red rot of sugarcane is caused by :

 
 
 
 

505. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

508. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

510. Infective part of virus was discovered by:

 
 
 
 

511. 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:

 
 
 
 

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

 
 
 
 

513. Most primitive embryophytes are placed in :

 
 
 
 

514. Which of the following are included in Tracheophyta?

 
 
 
 

515. In Selaginella, the microsporangia are:

 
 
 
 

516. Which causes red tide?

 
 
 
 

517. Fruits are not found in :

 
 
 
 

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

 
 
 
 

519. Pinus is:

 
 
 
 

520. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

522. Fairy ring is the name given to:

 
 
 
 

523. The young leaves of Cycas have :

 
 
 
 

524. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

526. Cryptogams include :

 
 
 
 

527. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

531. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

534. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

539. In Funaria :

 
 
 
 

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

 
 
 
 

541. Zoogametes are not found in:

 
 
 
 

542. 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:

 
 
 
 

543. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

544. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

547. The spur of Pinus roxburghii has :

 
 
 
 

548. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

550. The upper region of moss capsule is :

 
 
 
 

551. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

555. Vascular cryptogam is the term used for :

 
 
 
 

556. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

558. Pasteurized milk is:

 
 
 
 

559. What is the role of nitrifying bacteria?

 
 
 
 

560. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

565. The disease apple scab is caused by:

 
 
 
 

566. Agar-agar is obtained from:

 
 
 
 

567. Which of the following statement is correct?

 
 
 
 

568. Siphonogamy is found in:

 
 
 
 

569. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

571. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

575. A gill of Agaricus:

 
 
 
 

576. Polystelic condition is found in:

 
 
 
 

577. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

579. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

584. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

586. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

589. Which of the following have a prokaryotic cell?

 
 
 
 

590. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

593. The fungi that grow on wood are called:

 
 
 
 

594. Funaria is :

 
 
 
 

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

 
 
 
 

596. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

599. The ferns are usually found:

 
 
 
 

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

 
 
 
 

601. Spermatophyta are characterized by producing:

 
 
 
 

602. Pollination drop is:

 
 
 
 

603. Ovules are not found enclosed in ovary in :

 
 
 
 

604. Chief constituents of bordeaux mixture are :

 
 
 
 

605. Funaria is :

 
 
 
 

606. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

608. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

610. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

612. Winged pollen grains are found in :

 
 
 
 

613. In moss, conducting tissue is made up of

 
 
 
 

614. The chromosomal number in:

 
 
 
 

615. Total parasites belong to:

 
 
 
 

616. Mycoplasma are sensitive to:

 
 
 
 

617. Absorptive nutrition is:

 
 
 
 

618. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

620. The term stele was given by:

 
 
 
 

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

 
 
 
 

622. Male gametophyte of Selaginella is found:

 
 
 
 

623. Germ theory of disease was proposed by:

 
 
 
 

624. Facultative parasite is:

 
 
 
 

625. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

628. Transfusion tissue is present in the leaflet of:

 
 
 
 

629. Bacteria which are spherical are called:

 
 
 
 

630. The sporophyte of Riccia is represented by :

 
 
 
 

631. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. Which of the following have algal zone?

 
 
 
 

635. 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:

 
 
 
 

636. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

638. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

640. Lichens form the first community in

 
 
 
 

641. Water-net is the name of:

 
 
 
 

642. Funaria can be differentiated from Cycas :

 
 
 
 

643. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

645. Rhizoids of Riccia are :

 
 
 
 

646. Simple polyembryony is found in :

 
 
 
 

647. Most primitive group of vascular plants are:

 
 
 
 

648. What is a vector?

 
 
 
 

649. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

651. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

653. Cycas is similar to a mustard plant :

 
 
 
 

654. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

656. Which of the following does not contain chlorophyll?

 
 
 
 

657. Most primitive kind of flower is represented by:

 
 
 
 

658. First animal pathogenic virus was discovered by:

 
 
 
 

659. Cycas revoluta is widely grown as :

 
 
 
 

660. Which of the following lichens is harmful?

 
 
 
 

661. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

665. Most common type of conjugation in Spirogyra is :

 
 
 
 

666. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

668. Which of the following is a monocot?

 
 
 
 

669. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

671. The antibiotic is obtained from:

 
 
 
 

672. Viruses are considered to be:

 
 
 
 

673. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

674. All archaebacteria lack:

 
 
 
 

675. Gymnosperms could also be called as:

 
 
 
 

676. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

679. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

682. Choose the correct statement about Spirogyra:

 
 
 
 

683. The source of litmus is :

 
 
 
 

684. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

688. The megaspore of Selaginella on germination produces:

 
 
 
 

689. In a bacteriophage, DNA is present in:

 
 
 
 

690. White rust of crucifers is caused by:

 
 
 
 

691. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

693. Seeds are characteristically found in :

 
 
 
 

694. Fern plants are:

 
 
 
 

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

 
 
 
 

696. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

700. True sexuality is not found in:

 
 
 
 

701. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

703. Who among the following discovered virus?

 
 
 
 

704. Late blight of potato is caused by:

 
 
 
 

705. Coenogamete is found in:

 
 
 
 

706. Which condition is found in Cycas?

 
 
 
 

707.

 

708. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

710. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

712. Usually, bacteria reproduce by:

 
 
 
 

713. The orders generally have the uniform endings:

 
 
 
 

714. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

717. Embryophyta includes :

 
 
 
 

718. Rice, pea, potato are :

 
 
 
 

719. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

722. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

724. Anoxygenic photosynthesis occurs in:

 
 
 
 

725. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

728. Penicillin was discovered by:

 
 
 
 

729. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

734. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

737. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

741. Cyanophage is a virus that attacks:

 
 
 
 

742. Why is Cycas called a living fossil?

 
 
 
 

743. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

745. Antibiotic has been extracted from :

 
 
 
 

746. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

747. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

749. Circular DNA is seen in:

 
 
 
 

750. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

755. Cell walls of Gram-positive bacteria contain:

 
 
 
 

756. The sexual reproductive organs in Rhizopus are:

 
 
 
 

757. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

759. Mucilaginous canals in Cycas are found in :

 
 
 
 

760. The gametophyte of fern is as:

 
 
 
 

761. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

762. Black rust of wheat is caused by:

 
 
 
 

763. The disease symptom necrosis refers to :

 
 
 
 

764. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

765. Which have the largest antherozoid?

 
 
 
 

766. Germination of the seed of Pinus is :

 
 
 
 

767. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

769. Fruits are not found in:

 
 
 
 

770. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

772. An alga which is rich in proteins:

 
 
 
 

773. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

775. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

779. The seedless plants which possess vascular tissues are:

 
 
 
 

780. 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:

 
 
 
 

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

 
 
 
 

782. Aflatoxin is produced by:

 
 
 
 

783. Acetobacter is useful in:

 
 
 
 

784. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

786. Common phycobiont in a lichen is :

 
 
 
 

787. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

790. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

793.

794. Redness of red sea is due to :

 
 
 
 

795. Bryophyta have a special character from other plants:

 
 
 
 

796. Longest known virus is:

 
 
 
 

797. 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?

 
 
 
 

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

 
 
 
 

799. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

802. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

804. Protistan algae obtain their food as:

 
 
 
 

805. The photosynthetic protists are:

 
 
 
 

806. The prothallus of fern represents the plant:

 
 
 
 

807. Gametophyte is the main plant body in :

 
 
 
 

808. Bacteria differ from viruses in being sensitive to:

 
 
 
 

809. In moss, sporophyte is formed on:

 
 
 
 

810. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

812. Which of the following are absent in Mycoplasma?

 
 
 
 

813. Spermatophyta are characterized by producing:

 
 
 
 

814. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

817. Oswald Tippo’s classification is:

 
 
 
 

818. Sporophyte of fern is:

 
 
 
 

819. Proembryo in Pinus is :

 
 
 
 

820. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

822. Funaria is a Bryophyta because :

 
 
 
 

823. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

824. Interferon is a:

 
 
 
 

825. Winged seeds are found in :

 
 
 
 

826. Protozoans are considered animals because these are:

 
 
 
 

827. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

830. The teeth of peristome of Funaria are :

 
 
 
 

831. The fungi used as food are:

 
 
 
 

832. Select the wrong statement:

 
 
 
 

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

 
 
 
 

834. Centric discoid form of diatom is:

 
 
 
 

835. Ginkgo biloba is a:

 
 
 
 

836. Woody climbers are known as :

 
 
 
 

837. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

842. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

844. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

845.

846. Desired type of Cycas can be grown by:

 
 
 
 

847. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

849. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

851. The plants of Funaria grow :

 
 
 
 

852. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

853. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

856. Embryophyta includes:

 
 
 
 

857. Diploxylic vascular bundles are found in:

 
 
 
 

858. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

860. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

862. Chemosynthetic bacteria are:

 
 
 
 

863. The sporangium of fern contains nearly:

 
 
 
 

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