Quiz_Random

1. Club moss and Peat moss belong to:

 
 
 
 

2. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Cap cells are found in the filament of:

 
 
 
 

13. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

14. In moss, conducting tissue is made up of

 
 
 
 

15. Cell walls of Gram-positive bacteria contain:

 
 
 
 

16. How is moss different from fern?

 
 
 
 

17. Spermatophyta are characterized by producing:

 
 
 
 

18. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

20. Reserve food in Euglena is:

 
 
 
 

21. Which condition is found in Cycas?

 
 
 
 

22. Lichens are pioneers of vegetation in a :

 
 
 
 

23. The teeth of peristome of Funaria are :

 
 
 
 

24. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Fruits are not found in :

 
 
 
 

28. Sexual reproduction of lichen is due to :

 
 
 
 

29. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. Mycoplasma was discovered by:

 
 
 
 

34. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. Yeast is a source of:

 
 
 
 

38. 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:

 
 
 
 

39. Lichen show :

 
 
 
 

40. Lichens reproduce by :

 
 
 
 

41. Mucilaginous canals in Cycas are found in :

 
 
 
 

42. Small epidermal swellings due to infection are called :

 
 
 
 

43. Photosynthetic protists belong to:

 
 
 
 

44. Select the correct statement: (NEET 2016)

 
 
 
 

45. Aflatoxin is produced by:

 
 
 
 

46. The leaf of Cycas shows:

 
 
 
 

47. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

49. The development of Selaginella embryo is:

 
 
 
 

50. Azolla growing in paddy fields helps in:

 
 
 
 

51. Cycas is similar to a mustard plant :

 
 
 
 

52. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

60. Centric discoid form of diatom is:

 
 
 
 

61. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

63. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

65. 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?

 
 
 
 

66. Club moss is the common name of :

 
 
 
 

67. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

69. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

71. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

79. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Heterocysts are found in :

 
 
 
 

83. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

84. Antibiotics cure the disease by:

 
 
 
 

85. Milk is converted to curd by:

 
 
 
 

86. The young leaves of Cycas have :

 
 
 
 

87. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. The word “sea weeds” is used for:

 
 
 
 

91. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

97. Selaginella differs from Moss in having:

 
 
 
 

98. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

102. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

106. LSD is:

 
 
 
 

107. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

110. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

113. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. In moss, stomata are found:

 
 
 
 

117. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

119. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

123. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

126. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

128. All protozoans possess:

 
 
 
 

129. Which of the following are included in Tracheophyta?

 
 
 
 

130. Rhizophore of Selaginella is:

 
 
 
 

131. Pollination drop is:

 
 
 
 

132. Bryophyta have been placed in cryptogams because:

 
 
 
 

133. Gram stain is used to:

 
 
 
 

134. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

136. Parmelia belongs to :

 
 
 
 

137. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. Botulism is a:

 
 
 
 

142. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

144. What are Cyanobacteria?

 
 
 
 

145. The sexual reproductive organs in Rhizopus are:

 
 
 
 

146. Ethylene oxide is widely used to:

 
 
 
 

147. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

149. Green plants are classified as:

 
 
 
 

150. In Gymnocarpeae the fruiting body is :

 
 
 
 

151. In Cycas:

 
 
 
 

152. The smallest bacterium is:

 
 
 
 

153. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

155. The fungi are usually:

 
 
 
 

156. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

158. Who among the following discovered virus?

 
 
 
 

159. Which is an exception to cell theory?

 
 
 
 

160. Proembryo in Pinus is :

 
 
 
 

161. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

163. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

166. Helotism word is used for the symbiosis between :

 
 
 
 

167. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

169. Early blight of potato is caused by:

 
 
 
 

170. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

171. Citrus canker is caused by :

 
 
 
 

172. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

174. Most primitive group of vascular plants are:

 
 
 
 

175. The vascular bundles of Cycas stem are :

 
 
 
 

176. The spur of Pinus roxburghii has :

 
 
 
 

177. Pollination in Pinus is :

 
 
 
 

178. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

180. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

182. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

188. The photosynthetic protists are:

 
 
 
 

189. The source of litmus is :

 
 
 
 

190. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

192. Who discovered streptomycin?

 
 
 
 

193. The spermatozoids of Cycas are :

 
 
 
 

194. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

196. Enteric bacteria are those bacteria that live:

 
 
 
 

197. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

199. Economic importance of bacteria lies in their being:

 
 
 
 

200. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

202. The fungi that grow on wood are called:

 
 
 
 

203. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

204. The mycelium of Rhizopus is:

 
 
 
 

205. The ascus of yeast contains:

 
 
 
 

206. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

209. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

211. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

213. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

215. Bacteria differ from viruses in being sensitive to:

 
 
 
 

216. The antibiotic is obtained from:

 
 
 
 

217. Multicellular and jacketed sex organs are found in :

 
 
 
 

218. Which is not true for Escherichia coli?

 
 
 
 

219. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

221. Liverworts are included in :

 
 
 
 

222. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. Bacteria which are spherical are called:

 
 
 
 

226. Lichens show :

 
 
 
 

227. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

229. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

230. Sporophyte of fern is:

 
 
 
 

231. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

233. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

235. Rhizoids of Riccia are :

 
 
 
 

236. Bacteria are considered to be plants because they:

 
 
 
 

237. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

239. The ferns are usually found:

 
 
 
 

240. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

243. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

245. In angiosperms double fertilization represents:

 
 
 
 

246. The Rhizopus is:

 
 
 
 

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

 
 
 
 

248. The coralloid roots are :

 
 
 
 

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

 
 
 
 

250. Meristele of fern is:

 
 
 
 

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

 
 
 
 

252. Among the algae kelps are :

 
 
 
 

253. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

258. Select the wrong statement:

 
 
 
 

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

 
 
 
 

260. Lichens form the first community in

 
 
 
 

261. In Funaria :

 
 
 
 

262. Pinus is:

 
 
 
 

263. Water-net is the name of:

 
 
 
 

264. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

266. The two conjugating gametangia of Rhizopus are:

 
 
 
 

267. The order generally ends with:

 
 
 
 

268. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

270. Which group of algae have an incipient nucleus?

 
 
 
 

271. Indusium in Dryopteris is:

 
 
 
 

272. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

274. Psilotum is:

 
 
 
 

275. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

283. The prothallus of fern is:

 
 
 
 

284. Which of the following have a prokaryotic cell?

 
 
 
 

285. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

287. Smallpox is caused by:

 
 
 
 

288. Chief constituents of bordeaux mixture are :

 
 
 
 

289. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

291. The leaves of Funaria are :

 
 
 
 

292. Acellular slime mold is/are:

 
 
 
 

293. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

295. Viruses have:

 
 
 
 

296. Redness of red sea is due to :

 
 
 
 

297. Nitrifying bacteria play an important role by converting:

 
 
 
 

298. Which of the following are absent in Mycoplasma?

 
 
 
 

299. Pteridophyta are also called:

 
 
 
 

300. Botulinum toxin effects:

 
 
 
 

301. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

302. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

305. To which country Antony van Leeuwenhoek belong?

 
 
 
 

306. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

307. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

309. Which of the following lichens is harmful?

 
 
 
 

310. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

312. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. The chromosomal number in:

 
 
 
 

316. The disease apple scab is caused by:

 
 
 
 

317. Which of the following is true for viruses?

 
 
 
 

318. Ovary is absent in:

 
 
 
 

319. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

321. Which is a redwood tree?

 
 
 
 

322. The term stele was given by:

 
 
 
 

323. What is the role of nitrifying bacteria?

 
 
 
 

324. The lambda phase is a:

 
 
 
 

325. Typhoid in man is caused by:

 
 
 
 

326. A gill of Agaricus:

 
 
 
 

327. Green plants are classified as :

 
 
 
 

328.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. Methanogens belong to:

 
 
 
 

336. Chemosynthetic bacteria are:

 
 
 
 

337. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

342. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

344. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

346. The fungi used as food are:

 
 
 
 

347. The megasporangium of Selaginella is:

 
 
 
 

348. The Rhizopus gametes are formed in:

 
 
 
 

349. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

351. Lichens reproduce by :

 
 
 
 

352. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

354. Pasteur is famous for his:

 
 
 
 

355. What is absent in Deuteromycetes?

 
 
 
 

356. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

359. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

361. Black rust of wheat is caused by:

 
 
 
 

362. Most primitive embryophytes are placed in:

 
 
 
 

363. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

364. Streptomycin is obtained from:

 
 
 
 

365. In a bacteriophage, DNA is present in:

 
 
 
 

366. Some diseases caused by bacteria are:

 
 
 
 

367. Common phycobiont in a lichen is :

 
 
 
 

368. Fern phloem lacks:

 
 
 
 

369. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

373. Which of the following have algal zone?

 
 
 
 

374. Infective part of virus was discovered by:

 
 
 
 

375. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

381. Spirogyra differs from moss protonema in having :

 
 
 
 

382. In Pteris, the roots are:

 
 
 
 

383. Fruiting body of lichens is :

 
 
 
 

384. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

385. Fruits are not found in:

 
 
 
 

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

 
 
 
 

387. Protozoans are considered animals because these are:

 
 
 
 

388. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

393. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

395. Reproduction in Cycas takes place by :

 
 
 
 

396. Mycoplasma are sensitive to:

 
 
 
 

397. Leprosy is caused by:

 
 
 
 

398. What is streptomycin?

 
 
 
 

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

 
 
 
 

400. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

403. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

405. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

408. Embryophyta includes:

 
 
 
 

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

 
 
 
 

410. Male gametes in Dryopteris are:

 
 
 
 

411. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

416. Black rust of wheat is caused by:

 
 
 
 

417. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

419. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

421. Lichens are ecologically important because :

 
 
 
 

422. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

424. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

426. Which one of the following is a monocot?

 
 
 
 

427. Saccharomyces is well known for:

 
 
 
 

428. The central part of Funaria axis is :

 
 
 
 

429. The plants of Funaria grow :

 
 
 
 

430. Select the wrong statement:

 
 
 
 

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

 
 
 
 

432. Germination of the seed of Pinus is :

 
 
 
 

433. Ginkgo biloba is a:

 
 
 
 

434. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. Which have the largest antherozoid?

 
 
 
 

438. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

442. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

444. The zygospore in Rhizopus on germination forms:

 
 
 
 

445. The flagella of Chlamydomonas are:

 
 
 
 

446. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

448. Vascular tissue is found in :

 
 
 
 

449. Mycoplasma is different from bacteria due to:

 
 
 
 

450. Ovary is absent in :

 
 
 
 

451. Bacteria growing on synthetic medium are called:

 
 
 
 

452. Facultative parasite is:

 
 
 
 

453. The sporangium of fern contains nearly:

 
 
 
 

454. Downy mildew disease is caused by :

 
 
 
 

455. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

459. 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:

 
 
 
 

460. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

462. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

464. The chief characteristic of class Ascomycetes is:

 
 
 
 

465. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

469. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

472. Which bacteria convert nitrate into nitrogen?

 
 
 
 

473. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

475. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

477. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

479. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

481. Pneumonia is caused by:

 
 
 
 

482. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

487. Rice, pea, potato are :

 
 
 
 

488. Leaf spot of groundnut is caused by :

 
 
 
 

489. Funaria is :

 
 
 
 

490. Virion refers to:

 
 
 
 

491. The similarity between cyanobacteria and bacteria:

 
 
 
 

492. The sporangia of Selaginella are attached:

 
 
 
 

493. John Hutchinson divided dicots into two divisions:

 
 
 
 

494. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

496. Cycas is :

 
 
 
 

497. In moss, reduction division occurs in :

 
 
 
 

498. Which part of Riccia bears nurse cells?

 
 
 
 

499. Heterospory is the production of:

 
 
 
 

500. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

508. Amoeba is a member of the phylum:

 
 
 
 

509. Iodine is obtained from :

 
 
 
 

510. Cyathia is characterized by:

 
 
 
 

511. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

513. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

516. Which is an edible fungus?

 
 
 
 

517. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

519. Interferon is a:

 
 
 
 

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

 
 
 
 

521. Bryophyta have a special character from other plants:

 
 
 
 

522. Cellular slime mold is:

 
 
 
 

523. The orders generally have the uniform endings:

 
 
 
 

524. Late blight of potato is caused by :

 
 
 
 

525. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

526. Most of the lichens are composed of :

 
 
 
 

527. The sporophyte of Riccia is represented by :

 
 
 
 

528. Black rust of wheat is caused by:

 
 
 
 

529. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

531. Halophiles are the bacteria that require for growth:

 
 
 
 

532. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

534. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. The tree fern is:

 
 
 
 

538. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

540. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

544. Disease resistant plant varieties can be produced by :

 
 
 
 

545. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

553. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

556. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

559. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

565. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

567. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

571. The seedless plants which possess vascular tissues are:

 
 
 
 

572. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

575. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

577. The fungi are mostly:

 
 
 
 

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

 
 
 
 

579. Citrus canker is caused by:

 
 
 
 

580. Longest known virus is:

 
 
 
 

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

 
 
 
 

582. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

584. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

586. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

588. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

590. The leaves of Funaria are :

 
 
 
 

591. Sexual reproduction in Rhizopus is by:

 
 
 
 

592. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

594. Most resistant spore in bacteria is:

 
 
 
 

595. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

598. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. In Cycas which structure is equivalent to stamen?

 
 
 
 

602. Which of the following statement is correct?

 
 
 
 

603. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

605. All algae have:

 
 
 
 

606. Iodine is obtained from:

 
 
 
 

607. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. What is a vector?

 
 
 
 

611. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. 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:

 
 
 
 

619. Fern plants are:

 
 
 
 

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

 
 
 
 

621. Mycoplasma contains:

 
 
 
 

622. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

626. Special feature of pollen grains of Pinus is :

 
 
 
 

627. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

630. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

632. Sometimes the bacterial cell is enclosed in:

 
 
 
 

633. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

635. Usually, bacteria reproduce by:

 
 
 
 

636. In moss, peristomial teeth are:

 
 
 
 

637. Placenta in fern is:

 
 
 
 

638. Which is the nuclear material in bacteria?

 
 
 
 

639. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

641. Woody climbers are known as :

 
 
 
 

642. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. Sleeping sickness disease in man is caused by:

 
 
 
 

646. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

648. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

652. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

654. Seeds are characteristically found in:

 
 
 
 

655. Vegetative reproduction in Cycas is by means of :

 
 
 
 

656. Fern prothallus produces:

 
 
 
 

657. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. 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?

 
 
 
 

661. Rhizopus belongs to:

 
 
 
 

662. 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:

 
 
 
 

663. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

664. Bacteria were first discovered by:

 
 
 
 

665. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

667. Synzoospore is produced in:

 
 
 
 

668. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

674. Pasteurization of milk involves heating for:

 
 
 
 

675. Banana bunchy top is caused by :

 
 
 
 

676. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

679. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

681. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

683. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

684. Who named prion?

 
 
 
 

685.

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

 
 
 
 

687. Which of the following is a monocot?

 
 
 
 

688. The zoospores of Ulothrix are :

 
 
 
 

689. Spermatophyta are characterized by producing:

 
 
 
 

690. The lichens growing on rocks are called :

 
 
 
 

691. Funaria is :

 
 
 
 

692. Which causes red tide?

 
 
 
 

693. 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:

 
 
 
 

694. Which of the following shows heterotrichous habit?

 
 
 
 

695. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

700. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

703. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

708. Cycas is different from mango in :

 
 
 
 

709. Most of the algae are :

 
 
 
 

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

 
 
 
 

711. The sporophyte of Riccia is :

 
 
 
 

712. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

716.

 

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

 
 
 
 

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

 
 
 
 

719. Roots are absent in :

 
 
 
 

720. 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?

 
 
 
 

721. In tracheophyta:

 
 
 
 

722. The role of meiosis is for:

 
 
 
 

723. Water bloom is generally caused by :

 
 
 
 

724. Which is a gametophytic tissue?

 
 
 
 

725.

726. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

728. Late blight of potato is caused by:

 
 
 
 

729. Pollination in Cycas takes place by :

 
 
 
 

730. The mode of nutrition of bacteria is usually:

 
 
 
 

731. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

733. Discovery of penicillin was based on:

 
 
 
 

734. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. Which of the following does not contain chlorophyll?

 
 
 
 

739. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

742. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

744. Pythium debaryanum is the causative agent of:

 
 
 
 

745. Winged seeds are found in :

 
 
 
 

746. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

749. Meiosis in Ulothrix takes place:

 
 
 
 

750. Viruses are commonly transmitted in plants through:

 
 
 
 

751. The fern plant is:

 
 
 
 

752. Fern prothallus is:

 
 
 
 

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

 
 
 
 

754. The largest alga is:

 
 
 
 

755. The root nodules of leguminous plants contain:

 
 
 
 

756. Cryptogams include :

 
 
 
 

757. The tallest moss in the world is :

 
 
 
 

758. Fertility of the soil is increased by:

 
 
 
 

759. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

761. Where does meiosis occur in yeast?

 
 
 
 

762. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

767. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

769. Linnaeus is credited with introducing:

 
 
 
 

770. The smallest unit of classification is:

 
 
 
 

771. Cycas is:

 
 
 
 

772. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

774. Saccharomyces ludwigii ascus produces:

 
 
 
 

775. Some bacteria cannot be killed easily because of:

 
 
 
 

776. Which one of the following statement is wrong?

 
 
 
 

777. Little leaf disease of Brinjal is caused by:

 
 
 
 

778. Ovules are not found enclosed in ovary of:

 
 
 
 

779. Total parasites belong to:

 
 
 
 

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

 
 
 
 

781. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. Generic name of mango is:

 
 
 
 

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

 
 
 
 

786. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

788. Rhizopus and yeast are usually:

 
 
 
 

789. Water-borne bacterial diseases are:

 
 
 
 

790. Photosynthetic bacteria have:

 
 
 
 

791. Simple polyembryony is found in :

 
 
 
 

792. The sporangiophores in Rhizopus are:

 
 
 
 

793. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

795. Which of the following are included in Tracheophyta?

 
 
 
 

796. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

798. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

799. Ulothrix produces :

 
 
 
 

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

 
 
 
 

801. Number of capsomeres forming capsid of TMV is:

 
 
 
 

802. In Pteris, the archegonia are present:

 
 
 
 

803. In dinoflagellates, the two flagella are:

 
 
 
 

804. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. Pinus microsporophyll bears:

 
 
 
 

809. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

811. NBG of Lucknow is now named as:

 
 
 
 

812. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

816. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

818. Majority of lichens are :

 
 
 
 

819. The sori in Dryopteris are found on:

 
 
 
 

820. Enzymes are absent in:

 
 
 
 

821. Pteridophytes are also known as :

 
 
 
 

822. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

824. Heterospory and ligulate leaves are a feature of:

 
 
 
 

825. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

826. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

828. Bivalved siliceous shell or frustule occur in:

 
 
 
 

829. 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:

 
 
 
 

830. The archegonia of Selaginella are differentiated by:

 
 
 
 

831. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

833. Embryophyta includes :

 
 
 
 

834. Quarantine regulations are concerned with:

 
 
 
 

835. The microsporophylls on the cone of Cycas are :

 
 
 
 

836. Lichens are indicators of :

 
 
 
 

837. The DNA of E coli is:

 
 
 
 

838. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

841. Fruits are not found in Cycas because:

 
 
 
 

842. Ergot of rye is caused by:

 
 
 
 

843. Absorptive nutrition is:

 
 
 
 

844. In moss, sporogenous tissue arises from:

 
 
 
 

845. Broad spectrum antibiotic is, which:

 
 
 
 

846. Smut of maize is caused by :

 
 
 
 

847. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

852. Reproduction in Rhizopus is:

 
 
 
 

853. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

858. 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:

 
 
 
 

859. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

861. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

863. In Cycas the fertilization is:

 
 
 
 

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