Quiz_Random

1. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

3. An Hfr bacterium is one that contains:

 
 
 
 

4. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Cap cells are found in the filament of:

 
 
 
 

8. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

10. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

15. Mycoplasma was discovered by:

 
 
 
 

16. 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:

 
 
 
 

17. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Streptomyces falls under:

 
 
 
 

22. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

30. Fern prothallus produces:

 
 
 
 

31. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

33. Embryo formation is not known in :

 
 
 
 

34. Black rust of wheat is caused by:

 
 
 
 

35. The similarity between cyanobacteria and bacteria:

 
 
 
 

36. The DNA of E coli is:

 
 
 
 

37. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

39. Most primitive kind of flower is represented by:

 
 
 
 

40. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

42. Generic name of mango is:

 
 
 
 

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

 
 
 
 

44. Leprosy is caused by:

 
 
 
 

45. Which condition is found in Cycas?

 
 
 
 

46. Rhizopus and yeast are usually:

 
 
 
 

47. Heterospory and ligulate leaves are a feature of:

 
 
 
 

48. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

50. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

52. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Vascular cryptogams is the term used for:

 
 
 
 

64. Bacteria were first discovered by:

 
 
 
 

65. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

67. Citrus canker is caused by:

 
 
 
 

68. Cycas is different from mango in :

 
 
 
 

69. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

71. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

73. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

75. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

77. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

79. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

81. Longest known virus is:

 
 
 
 

82. Which bacteria convert nitrate into nitrogen?

 
 
 
 

83. Club moss is the common name of :

 
 
 
 

84. The gametophyte of fern bears:

 
 
 
 

85. Sleeping sickness disease in man is caused by:

 
 
 
 

86. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

88. Which of the following is a parasitic algae?

 
 
 
 

89. Antibiotics cure the disease by:

 
 
 
 

90. All protozoans possess:

 
 
 
 

91. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

93. The fungi are mostly:

 
 
 
 

94. Late blight of potato is caused by:

 
 
 
 

95. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

96. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

104. All algae have:

 
 
 
 

105. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

108. The antherozoids of Funaria are :

 
 
 
 

109. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

111. Who discovered heterothallism in fungi?

 
 
 
 

112. Selaginella differs from Moss in having:

 
 
 
 

113. Parmelia belongs to :

 
 
 
 

114. In dinoflagellates, the two flagella are:

 
 
 
 

115. Placenta in fern is:

 
 
 
 

116. The megasporangium of Selaginella is:

 
 
 
 

117. Bacteria growing on synthetic medium are called:

 
 
 
 

118. Who discovered streptomycin?

 
 
 
 

119. Reserve food in Euglena is:

 
 
 
 

120. The archegonia of Selaginella are differentiated by:

 
 
 
 

121. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

123. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

125. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

127. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

130. Banana bunchy top is caused by :

 
 
 
 

131. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

133. The archegonia in Selaginella develop on:

 
 
 
 

134. The leaf of Cycas shows:

 
 
 
 

135. The leafy fern plant represents the:

 
 
 
 

136. Clostridium can:

 
 
 
 

137. Lichens are the indicator of pollution :

 
 
 
 

138. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

140. LSD is:

 
 
 
 

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

 
 
 
 

142. The chloroplast in Ulothrix is :

 
 
 
 

143. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

145. The sporangiophores in Rhizopus are:

 
 
 
 

146. Lichen show :

 
 
 
 

147. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

151. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

155. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

157. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

160. The megaspore of Selaginella on germination produces:

 
 
 
 

161. Pollination in Cycas takes place by :

 
 
 
 

162. Which causes red tide?

 
 
 
 

163. Gymnosperms could also be called as:

 
 
 
 

164. Which of the following are absent in Mycoplasma?

 
 
 
 

165. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

169. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

172. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

173. Mixed cropping helps :

 
 
 
 

174. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

176. Enteric bacteria are those bacteria that live:

 
 
 
 

177. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

180. Smut of maize is caused by :

 
 
 
 

181. Yeast belongs to class:

 
 
 
 

182. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

185. The order generally ends with:

 
 
 
 

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

 
 
 
 

187. Streptomycin is obtained from:

 
 
 
 

188. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

190. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

193. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. Genetic material of TMV is:

 
 
 
 

201. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

203. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. What are Cyanobacteria?

 
 
 
 

207. What is a vector?

 
 
 
 

208. Lichens are pioneers of vegetation in a :

 
 
 
 

209. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

210. Embryophyta includes :

 
 
 
 

211. Which of the following is a heterosporous pteridophyte?

 
 
 
 

212. Pollination drop is:

 
 
 
 

213. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

215. Psilotum is:

 
 
 
 

216. Majority of lichens are :

 
 
 
 

217. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. Bacteria differ from viruses in being sensitive to:

 
 
 
 

221. Antibiotic has been extracted from :

 
 
 
 

222. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. Bentham and Hooker placed gymnosperms:

 
 
 
 

226. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

229. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

231. Coenogamete is found in:

 
 
 
 

232. The lichens growing on rocks are called :

 
 
 
 

233. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

235. Siphonogamy is found in:

 
 
 
 

236. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

238. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

241. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

244. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

246. Smallpox is caused by:

 
 
 
 

247. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

249. Which is a tautonym?

 
 
 
 

250. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

252. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

254. Transfusion tissue is present in the leaflet of:

 
 
 
 

255. 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:

 
 
 
 

256. In moss, conducting tissue is made up of

 
 
 
 

257. The stele of Dryopteris is a:

 
 
 
 

258. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

260. Which is not found in bacteria?

 
 
 
 

261. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

263. Saccharomyces ludwigii ascus produces:

 
 
 
 

264. Which of the following statements is not correct?

 
 
 
 

265. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

268. Woody climbers are known as :

 
 
 
 

269. Fruits are not found in :

 
 
 
 

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

 
 
 
 

271. The coralloid roots are :

 
 
 
 

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

 
 
 
 

273. The development of Selaginella embryo is:

 
 
 
 

274. The smallest bacterium is:

 
 
 
 

275. Which is a fungicide?

 
 
 
 

276. In moss, calyptra is formed from:

 
 
 
 

277. Water bloom is generally caused by :

 
 
 
 

278. The chromosomal number in:

 
 
 
 

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

 
 
 
 

280. Synzoospore is produced in:

 
 
 
 

281. Rhizoids of Riccia are :

 
 
 
 

282. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

284. The disease symptom necrosis refers to :

 
 
 
 

285. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

286. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

288. The spermatozoids of Cycas are :

 
 
 
 

289. Select the wrong statement:

 
 
 
 

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

 
 
 
 

291.

292. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

295. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

297. Ulothrix produces :

 
 
 
 

298. Seeds are characteristically found in :

 
 
 
 

299. How is moss different from fern?

 
 
 
 

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

 
 
 
 

301. Liverworts are included in :

 
 
 
 

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

 
 
 
 

303. The sexual reproductive organs in Rhizopus are:

 
 
 
 

304. Rhizophore of Selaginella is:

 
 
 
 

305. The fungi that grow on wood are called:

 
 
 
 

306. Which of the following statement is correct?

 
 
 
 

307. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

310. In Gymnosperms endosperm is a:

 
 
 
 

311. Indusium in Dryopteris is:

 
 
 
 

312. Which of the following have algal zone?

 
 
 
 

313. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. Water-borne bacterial diseases are:

 
 
 
 

320. Cycas is similar to a mustard plant :

 
 
 
 

321. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

325. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. Cyathia is characterized by:

 
 
 
 

330. 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:

 
 
 
 

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

 
 
 
 

332. The phloem of vascular system of Cycas is :

 
 
 
 

333. Club moss and Peat moss belong to:

 
 
 
 

334. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

337. Which is the nuclear material in bacteria?

 
 
 
 

338. Pinus microsporophyll bears:

 
 
 
 

339. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

341. Aflatoxin is produced as a product in :

 
 
 
 

342. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

346. The prothallus of fern is:

 
 
 
 

347. The most important property of yeast is:

 
 
 
 

348. Who named prion?

 
 
 
 

349. Chemosynthetic bacteria are:

 
 
 
 

350. The zygospore in Rhizopus on germination forms:

 
 
 
 

351. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

353. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

355. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

357. Some diseases caused by bacteria are:

 
 
 
 

358. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

360. The lambda phase is a:

 
 
 
 

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

 
 
 
 

362. The chief characteristic of bryophyta is that :

 
 
 
 

363. Funaria is a Bryophyta because :

 
 
 
 

364. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

367. Bacteriophages have been used as:

 
 
 
 

368. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

370. Pneumonia is caused by:

 
 
 
 

371. Bacteriophage consists of:

 
 
 
 

372. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

379. Which is a gametophytic tissue?

 
 
 
 

380. Pythium debaryanum is the causative agent of:

 
 
 
 

381. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

383. Funaria is :

 
 
 
 

384. Seeds are characteristically found in:

 
 
 
 

385. Number of capsomeres forming capsid of TMV is:

 
 
 
 

386. Lichens form the first community in

 
 
 
 

387. Disease resistant plant varieties can be produced by :

 
 
 
 

388. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

390. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

392. 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?

 
 
 
 

393. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

398. The tree fern is:

 
 
 
 

399. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

400. Where does meiosis occur in yeast?

 
 
 
 

401. Cycas is:

 
 
 
 

402. Yeast is a source of:

 
 
 
 

403. The rhizoids of Funaria are :

 
 
 
 

404. Chemosynthetic bacteria are:

 
 
 
 

405. Mucilaginous canals in Cycas are found in :

 
 
 
 

406. Azolla and Salvinia both are:

 
 
 
 

407. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

409. Standard size of a herbarium sheet is:

 
 
 
 

410. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414. Cryptogams include :

 
 
 
 

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

 
 
 
 

416. The microsporophylls on the cone of Cycas are :

 
 
 
 

417. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

421. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Who among the following discovered virus?

 
 
 
 

425. Which of the following shows heterotrichous habit?

 
 
 
 

426. What is mycorrhiza?

 
 
 
 

427. Climbers are found in genus:

 
 
 
 

428. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. Vascular tissue is found in :

 
 
 
 

432. Penicillin is obtained from:

 
 
 
 

433. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

436. 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?

 
 
 
 

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

 
 
 
 

438. Most of the algae are :

 
 
 
 

439. Among the algae kelps are :

 
 
 
 

440. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

442. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

444. Which one of the following statement is wrong?

 
 
 
 

445. Nitrifying bacteria play an important role by converting:

 
 
 
 

446. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

451. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

458. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. The genetic material of poxvirus is:

 
 
 
 

463. In Cycas which structure is equivalent to stamen?

 
 
 
 

464. Bacteria are considered to be plants because they:

 
 
 
 

465. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

467. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

469. The disease apple scab is caused by:

 
 
 
 

470. Pseudomycelium is found in:

 
 
 
 

471. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

473. Amoeba is a member of the phylum:

 
 
 
 

474. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

477. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. Total parasites belong to:

 
 
 
 

481. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

482. Ergot of rye is caused by:

 
 
 
 

483. Nannandria are:

 
 
 
 

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

 
 
 
 

485.

 

486. In Cycas microsporangia are borne on:

 
 
 
 

487. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

494. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498. Etiology includes the study of :

 
 
 
 

499. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

504. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

506. Enzymes are absent in:

 
 
 
 

507. In Funaria :

 
 
 
 

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

 
 
 
 

509. Mostly type of zygospore in Ulothrix is:

 
 
 
 

510. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

512. Pinus is:

 
 
 
 

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

 
 
 
 

514. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

516. Infective part of virus was discovered by:

 
 
 
 

517. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

518. Metulae are found in:

 
 
 
 

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

 
 
 
 

520. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

522. Mycoplasma are:

 
 
 
 

523. Little leaf disease of Brinjal is caused by:

 
 
 
 

524. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. Saccharomyces is well known for:

 
 
 
 

529. Which group of algae have an incipient nucleus?

 
 
 
 

530. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

532. The mode of nutrition of bacteria is usually:

 
 
 
 

533. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

535. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

537. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

539. Vegetative reproduction in Cycas is by means of :

 
 
 
 

540. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

542. In a diplontic life cycle:

 
 
 
 

543. The young leaves of Cycas have :

 
 
 
 

544. In Pteris, the roots are:

 
 
 
 

545. Select the wrong statement:

 
 
 
 

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

 
 
 
 

547.

548. The term stele was given by:

 
 
 
 

549. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

551. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

553. Meiosis in Ulothrix takes place:

 
 
 
 

554. Common phycobiont in a lichen is :

 
 
 
 

555. Which is not true for Escherichia coli?

 
 
 
 

556. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

559. Most of the lichens are composed of :

 
 
 
 

560. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

562. The largest alga is:

 
 
 
 

563. In Pteris, the archegonia are present:

 
 
 
 

564. Simple polyembryony is found in :

 
 
 
 

565. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

567. In Cycas:

 
 
 
 

568. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

570. An alga which is rich in proteins:

 
 
 
 

571. Protozoans are considered animals because these are:

 
 
 
 

572. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

576. Oswald Tippo’s classification is:

 
 
 
 

577. Photosynthetic protists belong to:

 
 
 
 

578. The sporophyte of Riccia is represented by :

 
 
 
 

579. The chief characteristic of class Ascomycetes is:

 
 
 
 

580. Which fixes atmospheric nitrogen?

 
 
 
 

581. Which statement is wrong in regard to bacteria?

 
 
 
 

582. In Funaria, calyptra is derived from :

 
 
 
 

583. Azolla growing in paddy fields helps in:

 
 
 
 

584. Interferon is a:

 
 
 
 

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

 
 
 
 

586. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

589. The nucleus of bacteria is:

 
 
 
 

590. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

592. Funaria can be differentiated from Cycas :

 
 
 
 

593. Which of the following is true for Selaginella?

 
 
 
 

594. In moss, peristomial teeth are:

 
 
 
 

595. The middle sterile part of capsule is called:

 
 
 
 

596. Cycas is :

 
 
 
 

597. Most primitive embryophytes are placed in:

 
 
 
 

598. Which of the following are included in Tracheophyta?

 
 
 
 

599. Which part of Riccia bears nurse cells?

 
 
 
 

600. Milk is converted to curd by:

 
 
 
 

601. The source of litmus is :

 
 
 
 

602. The teeth of peristome of Funaria are :

 
 
 
 

603.

604. Who discovered cyanophages?

 
 
 
 

605. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

607. 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:

 
 
 
 

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

 
 
 
 

609. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

611. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

613. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

615. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. Viroids have:

 
 
 
 

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

 
 
 
 

620. Typhoid in man is caused by:

 
 
 
 

621. Viruses have:

 
 
 
 

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

 
 
 
 

623. True sexuality is not found in:

 
 
 
 

624. In tracheophyta:

 
 
 
 

625. In a bacteriophage, DNA is present in:

 
 
 
 

626. The alga, Spirogyra are found in :

 
 
 
 

627. Fruits are not found in:

 
 
 
 

628. Usually, bacteria reproduce by:

 
 
 
 

629. 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?

 
 
 
 

630. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

632. Why is Cycas called a living fossil?

 
 
 
 

633. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

635. Botulism is a:

 
 
 
 

636. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

639. Ethylene oxide is widely used to:

 
 
 
 

640. 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:

 
 
 
 

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

 
 
 
 

642. Pollination in Pinus is :

 
 
 
 

643. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

645. Gram stain is used to:

 
 
 
 

646. Diploxylic vascular bundles are found in:

 
 
 
 

647. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

648. NBG of Lucknow is now named as:

 
 
 
 

649. The fungi are usually:

 
 
 
 

650. To which country Antony van Leeuwenhoek belong?

 
 
 
 

651. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

653. Detailed study of bacteriophage was made by:

 
 
 
 

654. Viruses are considered to be:

 
 
 
 

655. Plasmids are:

 
 
 
 

656. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

658. 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?

 
 
 
 

659. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

661. Mycoplasma is different from bacteria due to:

 
 
 
 

662. Early blight of potato is caused by:

 
 
 
 

663. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

666. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

668. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

670. The development of sporangium in Selaginella is:

 
 
 
 

671. Fruits are not found in Cycas because:

 
 
 
 

672. Which organisms are the oldest life forms?

 
 
 
 

673. Fern phloem lacks:

 
 
 
 

674. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

676. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

680. Which lichen is called Reindeer moss?

 
 
 
 

681. Economic importance of bacteria lies in their being:

 
 
 
 

682. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. Bivalved siliceous shell or frustule occur in:

 
 
 
 

687. Funaria is :

 
 
 
 

688. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

690. The fern plant is:

 
 
 
 

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

 
 
 
 

692. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

696. Reproduction in Cycas takes place by :

 
 
 
 

697. Ovules are not found enclosed in ovary in :

 
 
 
 

698. Mycoplasma contains:

 
 
 
 

699. In Selaginella, the microsporangia are:

 
 
 
 

700. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

702. Isomorphic type alternation of generation is found in:

 
 
 
 

703. E coli is a:

 
 
 
 

704. Iodine is obtained from :

 
 
 
 

705. Fern prothallus is:

 
 
 
 

706. Bacteria are found everywhere, except:

 
 
 
 

707. Pteridophyta are also called:

 
 
 
 

708. Each chloroplast in Spirogyra bears :

 
 
 
 

709. The leaves of Funaria are :

 
 
 
 

710. Lichens show :

 
 
 
 

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

 
 
 
 

712. Germination of the seed of Pinus is :

 
 
 
 

713. Redness of red sea is due to :

 
 
 
 

714. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

715. The antibiotic is obtained from:

 
 
 
 

716. The photosynthetic protists are:

 
 
 
 

717. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

719. The sori in Dryopteris are found on:

 
 
 
 

720. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

722. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

724. Zoogametes are not found in:

 
 
 
 

725. Bacteria which are spherical are called:

 
 
 
 

726. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. Circular DNA is seen in:

 
 
 
 

730. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

735. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

737. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

739. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

741. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

743. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

745. The truncated cone of HIV consists of:

 
 
 
 

746. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

748. Reproduction in Rhizopus is:

 
 
 
 

749. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. Cyanophage is a virus that attacks:

 
 
 
 

753. Citrus canker is caused by :

 
 
 
 

754. Which of the following does not contain chlorophyll?

 
 
 
 

755. The ferns are usually found:

 
 
 
 

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

 
 
 
 

757. Virion refers to:

 
 
 
 

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

 
 
 
 

759. The fungi used as food are:

 
 
 
 

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

 
 
 
 

761. The leaves of Funaria are :

 
 
 
 

762. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

765. Pasteurization of milk involves heating for:

 
 
 
 

766. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

772. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

774. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

776. Lichens reproduce by :

 
 
 
 

777. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

779. Ectocarpus produces:

 
 
 
 

780. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

785. Ergot is obtained from :

 
 
 
 

786. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

788. Most appropriate word for protozoans is:

 
 
 
 

789. The orders generally have the uniform endings:

 
 
 
 

790. The most primitive vascular plants is:

 
 
 
 

791. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. Green plants are classified as :

 
 
 
 

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

 
 
 
 

796. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

803. Embryophyta includes:

 
 
 
 

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

 
 
 
 

805. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. What is special feature of fern archegonia?

 
 
 
 

809. Which of the following applies to Selaginella?

 
 
 
 

810. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

813. Facultative parasite is:

 
 
 
 

814. Sexual reproduction in Rhizopus is by:

 
 
 
 

815. Which of the following are included in Tracheophyta?

 
 
 
 

816. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

818. The sporangia of Selaginella are attached:

 
 
 
 

819. Meristele of fern is:

 
 
 
 

820. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

825. In moss, sporogenous tissue arises from:

 
 
 
 

826. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

829. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

841. The Rhizopus gametes are formed in:

 
 
 
 

842. Linnaeus is credited with introducing:

 
 
 
 

843. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

846. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

848. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

850. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

855. Late blight of potato is caused by :

 
 
 
 

856. White rust of crucifers is caused by:

 
 
 
 

857. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

859. Desired type of Cycas can be grown by:

 
 
 
 

860. Which class of Protozoa includes all parasitic forms?

 
 
 
 

861. Green plants are classified as:

 
 
 
 

862. Roots are absent in :

 
 
 
 

863. Which is a redwood tree?

 
 
 
 

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