Quiz_Random

1. In dinoflagellates, the two flagella are:

 
 
 
 

2. Which of the following have algal zone?

 
 
 
 

3. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. The Rhizopus gametes are formed in:

 
 
 
 

7. The lichens growing on rocks are called :

 
 
 
 

8. Longest known virus is:

 
 
 
 

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

 
 
 
 

10. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Methanogens belong to:

 
 
 
 

15. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

22. Mycoplasma contains:

 
 
 
 

23. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

24. Yeast belongs to class:

 
 
 
 

25. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

27. The gametophyte produced by apospory is :

 
 
 
 

28. Interferon is a:

 
 
 
 

29. Centric discoid form of diatom is:

 
 
 
 

30. Psilotum is:

 
 
 
 

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

 
 
 
 

32. Which is not found in bacteria?

 
 
 
 

33. In Funaria, calyptra is derived from :

 
 
 
 

34. Amoeba is a member of the phylum:

 
 
 
 

35. The role of meiosis is for:

 
 
 
 

36. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. Ovules are not found enclosed in ovary in :

 
 
 
 

40. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. Viroids have:

 
 
 
 

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

 
 
 
 

45. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

47. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. The ferns are usually found:

 
 
 
 

51. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

52. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

54. Little leaf disease of Brinjal is caused by:

 
 
 
 

55. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

57. Most primitive group of vascular plants are:

 
 
 
 

58. An alga which is rich in proteins:

 
 
 
 

59. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

61. Broad spectrum antibiotic is, which:

 
 
 
 

62. The sporophyte of Riccia is represented by :

 
 
 
 

63. Aflatoxin is produced by:

 
 
 
 

64. Which class of Protozoa includes all parasitic forms?

 
 
 
 

65. Lichens are indicators of :

 
 
 
 

66. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

68. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. The two conjugating gametangia of Rhizopus are:

 
 
 
 

72. Saccharomyces ludwigii ascus produces:

 
 
 
 

73. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

75. The chloroplast of Chlamydomonas are:

 
 
 
 

76. The genetic material of poxvirus is:

 
 
 
 

77. Linnaeus is credited with introducing:

 
 
 
 

78. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

80. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

85. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Black rust of wheat is caused by:

 
 
 
 

91. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

93. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

95. Male gametes in Dryopteris are:

 
 
 
 

96. Germination of the seed of Pinus is :

 
 
 
 

97. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

99. Protistan algae obtain their food as:

 
 
 
 

100. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

102. TMV was isolated in crystalline form by:

 
 
 
 

103. The male gametes of Pinus are :

 
 
 
 

104. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

106. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

109. Selaginella differs from Moss in having:

 
 
 
 

110. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

112. Which is a fungicide?

 
 
 
 

113. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

115.

116. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. Heterosporous pteridophytes always form:

 
 
 
 

120.

121. Antibiotic has been extracted from :

 
 
 
 

122. Sporophyte of fern is:

 
 
 
 

123. Penicillin was discovered by:

 
 
 
 

124. NBG of Lucknow is now named as:

 
 
 
 

125. The megasporangium of Selaginella is:

 
 
 
 

126. Which of the following statement is correct?

 
 
 
 

127. Ergot of rye is caused by:

 
 
 
 

128. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

129. Which group of algae have an incipient nucleus?

 
 
 
 

130. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. Photoautotrophic bacteria have:

 
 
 
 

134. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

136. Which is an exception to cell theory?

 
 
 
 

137. Heterocysts are found in :

 
 
 
 

138. Gametophyte is the main plant body in :

 
 
 
 

139. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

141. Which is a redwood tree?

 
 
 
 

142. Most resistant spore in bacteria is:

 
 
 
 

143. Which one of the following is a monocot?

 
 
 
 

144. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

146. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

150. Isomorphic type alternation of generation is found in:

 
 
 
 

151. First animal pathogenic virus was discovered by:

 
 
 
 

152. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

154. The roots of Cycas are :

 
 
 
 

155. Rhizoids of Riccia are :

 
 
 
 

156. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

161. Oswald Tippo’s classification was based on :

 
 
 
 

162. Pollination in Cycas takes place by :

 
 
 
 

163. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

165. Rhizopus belongs to:

 
 
 
 

166. Climbers are found in genus:

 
 
 
 

167. Azolla and Salvinia both are:

 
 
 
 

168. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

171. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

174. Yeast is a source of:

 
 
 
 

175. Protists which are diploid reproduce sexually by:

 
 
 
 

176. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

178. The ascus of yeast contains:

 
 
 
 

179. Which of the following is a parasitic algae?

 
 
 
 

180. Which statement is wrong in regard to bacteria?

 
 
 
 

181. Number of capsomeres forming capsid of TMV is:

 
 
 
 

182. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

184. Vegetative reproduction in Cycas is by means of :

 
 
 
 

185. Soil fertility is lost by the activities of:

 
 
 
 

186. In Cycas microsporangia are borne on:

 
 
 
 

187. Why is Cycas called a living fossil?

 
 
 
 

188. Fairy ring is the name given to:

 
 
 
 

189. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

195. Diphtheria is caused by:

 
 
 
 

196. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

198. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

200. Leprosy is caused by:

 
 
 
 

201. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

203. Plasmids are:

 
 
 
 

204. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

209. Rhizophore of Selaginella is:

 
 
 
 

210. Lichen show :

 
 
 
 

211.

 

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

 
 
 
 

213. The young leaves of Cycas have :

 
 
 
 

214. Fern plants are:

 
 
 
 

215. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

217. Who discovered heterothallism in fungi?

 
 
 
 

218. The middle sterile part of capsule is called:

 
 
 
 

219. Chemosynthetic bacteria are:

 
 
 
 

220. Pinus is:

 
 
 
 

221. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

223. Spores of which plants have chloroplast:

 
 
 
 

224. Ovary is absent in:

 
 
 
 

225. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

226. All algae have:

 
 
 
 

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

 
 
 
 

228. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

230. The root nodules of leguminous plants contain:

 
 
 
 

231. What is absent in Deuteromycetes?

 
 
 
 

232. Smallpox is caused by:

 
 
 
 

233. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

235. Mycoplasma are:

 
 
 
 

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

 
 
 
 

237. Which is absent from the xylem of Cycas?

 
 
 
 

238. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

239. The central part of Funaria axis is :

 
 
 
 

240. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

242. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

246. The archegonia of Selaginella are differentiated by:

 
 
 
 

247. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. In Pteris, the roots are:

 
 
 
 

256. Enteric bacteria are those bacteria that live:

 
 
 
 

257. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

259. The photosynthetic protists are:

 
 
 
 

260. Cycas plant in appearance resembles :

 
 
 
 

261. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

263. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

265. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

268. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

274. Nitrifying bacteria play an important role by converting:

 
 
 
 

275. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

280. Siphonogamy is found in:

 
 
 
 

281. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

283. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

286. Which causes red tide?

 
 
 
 

287. Chief constituents of bordeaux mixture are :

 
 
 
 

288. What are plasmids?

 
 
 
 

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

 
 
 
 

290. What is special feature of fern archegonia?

 
 
 
 

291. The orders generally have the uniform endings:

 
 
 
 

292. John Hutchinson divided dicots into two divisions:

 
 
 
 

293. Cleavage polyembryony is found in :

 
 
 
 

294. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

298. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

302. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

306. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

310. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

312. The sexual reproductive organs in Rhizopus are:

 
 
 
 

313. Reproduction in Cycas takes place by :

 
 
 
 

314. The seedless plants which possess vascular tissues are:

 
 
 
 

315. The fungi that grow on wood are called:

 
 
 
 

316. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

318. Which part of Riccia bears nurse cells?

 
 
 
 

319. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. The term stele was given by:

 
 
 
 

327. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

329. Polystelic condition is found in:

 
 
 
 

330. Economic importance of bacteria lies in their being:

 
 
 
 

331. The development of Selaginella embryo is:

 
 
 
 

332. Winged seeds are found in :

 
 
 
 

333. In moss, stomata are found:

 
 
 
 

334. Spermatophyta are characterized by producing:

 
 
 
 

335. Fruits are not found in Cycas because:

 
 
 
 

336. The largest known bacterium is:

 
 
 
 

337. Bivalved siliceous shell or frustule occur in:

 
 
 
 

338. Sleeping sickness disease in man is caused by:

 
 
 
 

339. The sori in Dryopteris are found on:

 
 
 
 

340. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

342. 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?

 
 
 
 

343. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

346. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

349. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Oswald Tippo’s classification is:

 
 
 
 

353. The archegonia in Selaginella develop on:

 
 
 
 

354. The prothallus of fern represents the plant:

 
 
 
 

355. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

357. Cell walls of Gram-positive bacteria contain:

 
 
 
 

358. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

360. Which of the following is a monocot?

 
 
 
 

361. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

363. The tree fern is:

 
 
 
 

364. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

366. Proembryo in Pinus is :

 
 
 
 

367. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

369. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

371. Iodine is obtained from :

 
 
 
 

372. Fruiting body of lichens is :

 
 
 
 

373. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

374. Which of the following is sago palm?

 
 
 
 

375. Fruits are not found in:

 
 
 
 

376. Funaria is :

 
 
 
 

377. Virus and bacteriophage are made-up of:

 
 
 
 

378. Who among the following discovered virus?

 
 
 
 

379. Iodine is obtained from:

 
 
 
 

380. Ergot is obtained from :

 
 
 
 

381. 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:

 
 
 
 

382. Cap cells are found in the filament of:

 
 
 
 

383. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

388. Bacteriophage consists of:

 
 
 
 

389. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

391. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

393. The gametophyte of moss has distinct phases :

 
 
 
 

394. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

398. The leaves of Funaria are :

 
 
 
 

399. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

401. Facultative parasite is:

 
 
 
 

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

 
 
 
 

403. Majority of lichens are :

 
 
 
 

404. Which lichen is called Reindeer moss?

 
 
 
 

405. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

407. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

410. One of the distinctive feature of Spirogyra is :

 
 
 
 

411. Each chloroplast in Spirogyra bears :

 
 
 
 

412. Smut of maize is caused by :

 
 
 
 

413. Fruits are not found in :

 
 
 
 

414. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

416. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

418. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

420. E coli is a:

 
 
 
 

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

 
 
 
 

422. Most common type of conjugation in Spirogyra is :

 
 
 
 

423. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

429. In binomial system most of the words are:

 
 
 
 

430. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. Early blight of potato is caused by:

 
 
 
 

434. Cycas revoluta is widely grown as :

 
 
 
 

435. Standard size of a herbarium sheet is:

 
 
 
 

436. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

438. The sporangium of fern contains nearly:

 
 
 
 

439. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

442. The lambda phase is a:

 
 
 
 

443. Small epidermal swellings due to infection are called :

 
 
 
 

444. Pollination drop is:

 
 
 
 

445. Which bacteria convert nitrate into nitrogen?

 
 
 
 

446. Viruses are commonly transmitted in plants through:

 
 
 
 

447. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

450. Pollination in Pinus is :

 
 
 
 

451. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

453. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

455. Gram stain is used to:

 
 
 
 

456. Cryptogams include :

 
 
 
 

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

 
 
 
 

458. Cycas is :

 
 
 
 

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

 
 
 
 

460. Which organisms are the oldest life forms?

 
 
 
 

461. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

468. Bacteria are found everywhere, except:

 
 
 
 

469. Saccharomyces is well known for:

 
 
 
 

470. Antibiotics cure the disease by:

 
 
 
 

471. In Selaginella, the microsporangia are:

 
 
 
 

472. Bacteria differ from viruses in being sensitive to:

 
 
 
 

473. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

474. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

481. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

483. Seeds are characteristically found in :

 
 
 
 

484. Bacteria are considered to be plants because they:

 
 
 
 

485. Lichens reproduce by :

 
 
 
 

486. Total parasites belong to:

 
 
 
 

487. The disease symptom necrosis refers to :

 
 
 
 

488. 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:

 
 
 
 

489. Acellular slime mold is/are:

 
 
 
 

490. LSD is:

 
 
 
 

491. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

494. Genetic material of TMV is:

 
 
 
 

495. Funaria can be differentiated from Cycas :

 
 
 
 

496. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

498. The most primitive vascular plants is:

 
 
 
 

499. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

502. Desired type of Cycas can be grown by:

 
 
 
 

503. Cycas is:

 
 
 
 

504. Heterotrichous habit means :

 
 
 
 

505. The source of litmus is :

 
 
 
 

506. Fern prothallus is:

 
 
 
 

507. Botulism is a:

 
 
 
 

508. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

510. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

511. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

513. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

516. What is mycorrhiza?

 
 
 
 

517. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

519. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

520. Which is the correct statement about Selaginella?

 
 
 
 

521. Viruses have:

 
 
 
 

522. In tracheophyta:

 
 
 
 

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

 
 
 
 

524. The similarity between cyanobacteria and bacteria:

 
 
 
 

525. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

527. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

529. Spermatophyta are characterized by producing:

 
 
 
 

530. Which of the following is a heterosporous pteridophyte?

 
 
 
 

531. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

533. Which is a tautonym?

 
 
 
 

534. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

536. Where does meiosis occur in yeast?

 
 
 
 

537. Nitrogen-fixing bacteria may be located:

 
 
 
 

538. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

540. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

546. How a fern differs from a moss?

 
 
 
 

547. Anoxygenic photosynthesis occurs in:

 
 
 
 

548. The zoospores of Ulothrix are :

 
 
 
 

549. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

552. The zygospore in Rhizopus on germination forms:

 
 
 
 

553. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

557. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. The plants of Funaria grow :

 
 
 
 

563. 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:

 
 
 
 

564. The Rhizopus is:

 
 
 
 

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

 
 
 
 

566. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

568. In Cycas the fertilization is:

 
 
 
 

569. Spirogyra represents the :

 
 
 
 

570. Lichens are ecologically important because :

 
 
 
 

571. Roots are absent in :

 
 
 
 

572. Wine turns sour because of:

 
 
 
 

573. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

575. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

577. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

582. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

584. Pseudomycelium is found in:

 
 
 
 

585. Placenta in fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

588. 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?

 
 
 
 

589. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

591. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

593. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

595. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

599. What are Cyanobacteria?

 
 
 
 

600. Water-net is the name of:

 
 
 
 

601. The teeth of peristome of Funaria are :

 
 
 
 

602. Heterospory and ligulate leaves are a feature of:

 
 
 
 

603. Black rust of wheat is caused by:

 
 
 
 

604. Bacteria growing on synthetic medium are called:

 
 
 
 

605. Sexual reproduction in Rhizopus is by:

 
 
 
 

606. In moss, peristomial teeth are:

 
 
 
 

607. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

608. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

610. Pteridophyta are also called:

 
 
 
 

611. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

613. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. In moss, calyptra is formed from:

 
 
 
 

617. Azolla growing in paddy fields helps in:

 
 
 
 

618. Most primitive embryophytes are placed in:

 
 
 
 

619. The chromosomal number in:

 
 
 
 

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

 
 
 
 

621. In Gymnosperms endosperm is a:

 
 
 
 

622. Absorptive nutrition is:

 
 
 
 

623. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

629. White rust of crucifers is caused by:

 
 
 
 

630. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

635. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

639. The fungi are usually:

 
 
 
 

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

 
 
 
 

641. Which of the following are included in Tracheophyta?

 
 
 
 

642. In moss, sporophyte is formed on:

 
 
 
 

643. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

645. Mostly type of zygospore in Ulothrix is:

 
 
 
 

646. In angiosperms double fertilization represents:

 
 
 
 

647. In Funaria :

 
 
 
 

648. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

650. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

652. Cyanophage is a virus that attacks:

 
 
 
 

653. In a diplontic life cycle:

 
 
 
 

654. Lichens show :

 
 
 
 

655. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

657. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

659. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

661. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

664. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

667. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

671. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

674. How is moss different from fern?

 
 
 
 

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

 
 
 
 

676. Aflatoxin is produced as a product in :

 
 
 
 

677. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

680. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

683. Enzymes are absent in:

 
 
 
 

684. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

685. The microsporophylls on the cone of Cycas are :

 
 
 
 

686. The rhizoids of Funaria are :

 
 
 
 

687. The fungi are mostly:

 
 
 
 

688. The smallest unit of classification is:

 
 
 
 

689. Green plants are classified as:

 
 
 
 

690. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

692. Chemosynthetic bacteria are:

 
 
 
 

693. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

696. Nannandria are:

 
 
 
 

697. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

699. Woody climbers are known as :

 
 
 
 

700. The gametophyte of fern is as:

 
 
 
 

701. Embryophyta includes:

 
 
 
 

702. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. Parmelia belongs to :

 
 
 
 

706. Circular DNA is seen in:

 
 
 
 

707. The antibiotic is obtained from:

 
 
 
 

708. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

710. Liverworts are included in :

 
 
 
 

711. The vascular bundles of Cycas stem are :

 
 
 
 

712. Which of the following does not contain chlorophyll?

 
 
 
 

713. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

715. 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:

 
 
 
 

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

 
 
 
 

717. Who named prion?

 
 
 
 

718. Seeds are characteristically found in:

 
 
 
 

719. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

721. The mycelium of Rhizopus is:

 
 
 
 

722. The order generally ends with:

 
 
 
 

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

 
 
 
 

724. Mycoplasmas are not viruses in nature because:

 
 
 
 

725. Cycas is similar to a mustard plant :

 
 
 
 

726. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

728. Germ theory of disease was proposed by:

 
 
 
 

729. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. Lichens form the first community in

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

742. Some biologists have used the term Mycetozoa for:

 
 
 
 

743. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

746. Vascular cryptogam is the term used for :

 
 
 
 

747. Sporophyte of Funaria is :

 
 
 
 

748. Lichens are the indicator of pollution :

 
 
 
 

749. Sexual reproduction of lichen is due to :

 
 
 
 

750. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

752. Mucilaginous canals in Cycas are found in :

 
 
 
 

753. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

755. The sporangiophores in Rhizopus are:

 
 
 
 

756. What is the role of nitrifying bacteria?

 
 
 
 

757. The tallest moss in the world is :

 
 
 
 

758.

759. Which fixes atmospheric nitrogen?

 
 
 
 

760. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

767. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

769. Maximum diversity of life forms occurs in :

 
 
 
 

770. Water bloom is generally caused by :

 
 
 
 

771. Which condition is found in Cycas?

 
 
 
 

772. Fern phloem lacks:

 
 
 
 

773. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

778. In moss, reduction division occurs in :

 
 
 
 

779. Ginkgo biloba is a:

 
 
 
 

780. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

782. Pythium debaryanum is the causative agent of:

 
 
 
 

783. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

785. Black rust of wheat is caused by:

 
 
 
 

786. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

788. Most primitive kind of flower is represented by:

 
 
 
 

789. The spur of Pinus roxburghii has :

 
 
 
 

790. Funaria are commonly found :

 
 
 
 

791. The fungi used as food are:

 
 
 
 

792. The coralloid roots are :

 
 
 
 

793. Embryophyta includes :

 
 
 
 

794. Citrus canker is caused by:

 
 
 
 

795. 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:

 
 
 
 

796. Fertility of the soil is increased by:

 
 
 
 

797. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

801. Cyathia is characterized by:

 
 
 
 

802. The most important property of yeast is:

 
 
 
 

803. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. In Pteris, the archegonia are present:

 
 
 
 

808. Male gametophyte of Selaginella is found:

 
 
 
 

809. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

811. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

813. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

815. Coenogamete is found in:

 
 
 
 

816. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

818. Multicellular and jacketed sex organs are found in :

 
 
 
 

819. Pinus gerardiana is :

 
 
 
 

820. The alga, Spirogyra are found in :

 
 
 
 

821. Quarantine regulations are concerned with:

 
 
 
 

822. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

823. Pinus microsporophyll bears:

 
 
 
 

824. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

826. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

829. All protozoans possess:

 
 
 
 

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

 
 
 
 

831. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

834. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

836. Reproduction in Rhizopus is:

 
 
 
 

837. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

839. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

841. 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:

 
 
 
 

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

 
 
 
 

843. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

845. The leafy fern plant represents the:

 
 
 
 

846. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

852. Usually, bacteria reproduce by:

 
 
 
 

853. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

857. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

860. Most of the algae are :

 
 
 
 

861. Which is the nuclear material in bacteria?

 
 
 
 

862. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

864. Botulinum toxin effects: