Quiz_Random

1. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. 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:

 
 
 
 

5. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Mycoplasmas are not viruses in nature because:

 
 
 
 

14. The prothallus of fern is:

 
 
 
 

15. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

17. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

19. Bryophyta have a special character from other plants:

 
 
 
 

20. What is the role of nitrifying bacteria?

 
 
 
 

21. Which of the following shows heterotrichous habit?

 
 
 
 

22. All archaebacteria lack:

 
 
 
 

23. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

25. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. In Pteris, the roots are:

 
 
 
 

29. Which one of the following statement is wrong?

 
 
 
 

30. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. The chromosomal number in:

 
 
 
 

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

 
 
 
 

36. Psilotum is:

 
 
 
 

37. Total parasites belong to:

 
 
 
 

38. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. The fungi that grow on wood are called:

 
 
 
 

42. Selaginella differs from Moss in having:

 
 
 
 

43. Protozoans are considered animals because these are:

 
 
 
 

44. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. Pteridophytes are also known as :

 
 
 
 

48. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. Infective part of virus was discovered by:

 
 
 
 

52. The archegonia of Selaginella are differentiated by:

 
 
 
 

53. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

55. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

57. In moss, calyptra is formed from:

 
 
 
 

58. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

60. Lichen show :

 
 
 
 

61. 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?

 
 
 
 

62. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

64. Yeast belongs to class:

 
 
 
 

65. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

66. Siphonogamy is found in:

 
 
 
 

67. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

69. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. Water-borne bacterial diseases are:

 
 
 
 

74. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Leaf spot of groundnut is caused by :

 
 
 
 

80. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Longest known virus is:

 
 
 
 

84. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

88. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

94. True sexuality is not found in:

 
 
 
 

95. Nitrogen-fixing bacteria may be located:

 
 
 
 

96. Plasmids are:

 
 
 
 

97. Gymnosperms could also be called as:

 
 
 
 

98. Red rot of sugarcane is caused by :

 
 
 
 

99. Economic importance of bacteria lies in their being:

 
 
 
 

100. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

102. Pasteurization of milk involves heating for:

 
 
 
 

103. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

105. Indusium in Dryopteris is:

 
 
 
 

106. Fruits are not found in :

 
 
 
 

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

 
 
 
 

108. In Herpes virus DNA is:

 
 
 
 

109. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

113. An Hfr bacterium is one that contains:

 
 
 
 

114. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

116. Male gametophyte of Selaginella is found:

 
 
 
 

117. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

119. Most of the algae are :

 
 
 
 

120. Rhizoids of Riccia are :

 
 
 
 

121. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

123. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

125. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

127. Antibiotic has been extracted from :

 
 
 
 

128. Which causes red tide?

 
 
 
 

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

 
 
 
 

130. Embryophyta includes:

 
 
 
 

131. Most primitive group of vascular plants are:

 
 
 
 

132. Vegetative reproduction in Cycas is by means of :

 
 
 
 

133. Botulinum toxin effects:

 
 
 
 

134. Most primitive embryophytes are placed in:

 
 
 
 

135. Cycas plant in appearance resembles :

 
 
 
 

136. Which group of algae have an incipient nucleus?

 
 
 
 

137. Viruses have:

 
 
 
 

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

 
 
 
 

139. E coli is a:

 
 
 
 

140. Heterospory is the production of:

 
 
 
 

141. Funaria is :

 
 
 
 

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

 
 
 
 

143. Yeast grows more rapidly in:

 
 
 
 

144. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

146. Fruiting body of lichens is :

 
 
 
 

147. The seedless plants which possess vascular tissues are:

 
 
 
 

148. In Cycas the fertilization is:

 
 
 
 

149. The zoospores of Ulothrix are :

 
 
 
 

150. The fungi are mostly:

 
 
 
 

151. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

153. Who among the following discovered virus?

 
 
 
 

154. Water bloom is generally caused by :

 
 
 
 

155. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

159. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

161. The lichens growing on rocks are called :

 
 
 
 

162. Bryophyta have been placed in cryptogams because:

 
 
 
 

163. In moss, sporophyte is formed on:

 
 
 
 

164. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

166. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

168. The sporangium of fern contains nearly:

 
 
 
 

169. Vascular cryptogams is the term used for:

 
 
 
 

170. 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:

 
 
 
 

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

 
 
 
 

172. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

175. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

177. The fern plant is:

 
 
 
 

178. Special feature of pollen grains of Pinus is :

 
 
 
 

179. Pythium debaryanum is the causative agent of:

 
 
 
 

180. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

186. Vascular cryptogam is the term used for :

 
 
 
 

187. Sporophyte of Funaria is :

 
 
 
 

188. The truncated cone of HIV consists of:

 
 
 
 

189. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

193. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

194. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

196. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

198. Chemosynthetic bacteria are:

 
 
 
 

199. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

202. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

205. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

207. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

212.

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

 
 
 
 

214. How a fern differs from a moss?

 
 
 
 

215. Which one of the following is a monocot?

 
 
 
 

216. Chief constituents of bordeaux mixture are :

 
 
 
 

217. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

221. 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:

 
 
 
 

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

 
 
 
 

223. The order generally ends with:

 
 
 
 

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

 
 
 
 

225. Most resistant spore in bacteria is:

 
 
 
 

226. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

227. Which of the following is sago palm?

 
 
 
 

228. The mycelium of Rhizopus is:

 
 
 
 

229. The leafy fern plant represents the:

 
 
 
 

230. Pinus is:

 
 
 
 

231. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

233. The lambda phase is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

237. The sporangiophores in Rhizopus are:

 
 
 
 

238. Saccharomyces is well known for:

 
 
 
 

239. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

241. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

243. Spermatophyta are characterized by producing:

 
 
 
 

244. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

246. Cellular slime mold is:

 
 
 
 

247. Pollination in Cycas takes place by :

 
 
 
 

248. Enteric bacteria are those bacteria that live:

 
 
 
 

249. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

251.

252. Botulism is a:

 
 
 
 

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

 
 
 
 

254. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

257. Etiology includes the study of :

 
 
 
 

258. Cryptogams include :

 
 
 
 

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

 
 
 
 

260. The young leaves of Cycas have :

 
 
 
 

261. Halophiles are the bacteria that require for growth:

 
 
 
 

262. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

264. The photosynthetic protists are:

 
 
 
 

265. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

267. Ovules are not found enclosed in ovary in :

 
 
 
 

268. Ectocarpus produces:

 
 
 
 

269.

270. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

272. To which country Antony van Leeuwenhoek belong?

 
 
 
 

273. The sexual reproductive organs in Rhizopus are:

 
 
 
 

274. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

276. Synzoospore is produced in:

 
 
 
 

277. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

279. Streptomyces falls under:

 
 
 
 

280. Typhoid in man is caused by:

 
 
 
 

281. Ovary is absent in:

 
 
 
 

282. 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:

 
 
 
 

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

 
 
 
 

284. In Funaria :

 
 
 
 

285. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

291. Cycas is:

 
 
 
 

292. Mycoplasma contains:

 
 
 
 

293. The largest known bacterium is:

 
 
 
 

294. Mycoplasma was discovered by:

 
 
 
 

295. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

301. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

305. 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:

 
 
 
 

306. The sporophyte of Riccia is represented by :

 
 
 
 

307. Which is an exception to cell theory?

 
 
 
 

308. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

309. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

311. Roots are absent in :

 
 
 
 

312. The chloroplast of Chlamydomonas are:

 
 
 
 

313. All protozoans possess:

 
 
 
 

314. Who discovered cyanophages?

 
 
 
 

315. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

317. Azolla growing in paddy fields helps in:

 
 
 
 

318. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

321. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

323. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

325. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

327. The tallest moss in the world is :

 
 
 
 

328. Saccharomyces ludwigii ascus produces:

 
 
 
 

329. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

331. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

334. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

336. Water-net is the name of:

 
 
 
 

337. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

339. Pinus microsporophyll bears:

 
 
 
 

340. Cocci types of bacteria are:

 
 
 
 

341. The most important property of yeast is:

 
 
 
 

342. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

346. Bacteria are found everywhere, except:

 
 
 
 

347. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. Wine turns sour because of:

 
 
 
 

356. 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:

 
 
 
 

357. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

359. Funaria can be differentiated from Cycas :

 
 
 
 

360. Citrus canker is caused by :

 
 
 
 

361. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

363. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

366. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

369. The coralloid roots are :

 
 
 
 

370. Diploxylic vascular bundles are found in:

 
 
 
 

371. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

373. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

375. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

380. Black rust of wheat is caused by:

 
 
 
 

381. Liverworts are included in :

 
 
 
 

382. The roots of Cycas are :

 
 
 
 

383. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

387. Which class of Protozoa includes all parasitic forms?

 
 
 
 

388. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

391. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

394. Nitrifying bacteria play an important role by converting:

 
 
 
 

395. Fern phloem lacks:

 
 
 
 

396. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

398. Mostly type of zygospore in Ulothrix is:

 
 
 
 

399. Aflatoxin is produced as a product in :

 
 
 
 

400. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

404. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

405. Lichens are the indicator of pollution :

 
 
 
 

406. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

410. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

415. Photosynthetic bacteria have:

 
 
 
 

416. Sporophyte of fern is:

 
 
 
 

417. Lichens are ecologically important because :

 
 
 
 

418. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

425. The antherozoids of Funaria are :

 
 
 
 

426. 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?

 
 
 
 

427. The chief characteristic of class Ascomycetes is:

 
 
 
 

428. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

432. The first to isolate a plant virus was:

 
 
 
 

433. The disease symptom necrosis refers to :

 
 
 
 

434. Cyathia is characterized by:

 
 
 
 

435. Facultative parasite is:

 
 
 
 

436. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

438. Antibiotics cure the disease by:

 
 
 
 

439. Facultative saprophyte is:

 
 
 
 

440. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

444. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

446. Which of the following is a parasitic algae?

 
 
 
 

447. The prothallus of fern represents the plant:

 
 
 
 

448. Sometimes the bacterial cell is enclosed in:

 
 
 
 

449. Which of the following have algal zone?

 
 
 
 

450. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

452. Bacteriophage consists of:

 
 
 
 

453. Heterospory and ligulate leaves are a feature of:

 
 
 
 

454. In Cycas which structure is equivalent to stamen?

 
 
 
 

455. Mixed cropping helps :

 
 
 
 

456. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

458. Spores of which plants have chloroplast:

 
 
 
 

459. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. The term stele was given by:

 
 
 
 

463. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

468. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

470. The mode of nutrition of bacteria is usually:

 
 
 
 

471. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

473. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

477. The Rhizopus is:

 
 
 
 

478. What are Cyanobacteria?

 
 
 
 

479. The plants of Funaria grow :

 
 
 
 

480. Bacteria differ from viruses in being sensitive to:

 
 
 
 

481. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

484. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

486. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

489. The upper region of moss capsule is :

 
 
 
 

490. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

493. Which is the correct statement about Selaginella?

 
 
 
 

494. Heterosporous pteridophytes always form:

 
 
 
 

495. Leprosy is caused by:

 
 
 
 

496. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

498. Some biologists have used the term Mycetozoa for:

 
 
 
 

499. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

502. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

508. Cyanophage is a virus that attacks:

 
 
 
 

509. The largest alga is:

 
 
 
 

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

 
 
 
 

511. Ethylene oxide is widely used to:

 
 
 
 

512. The vascular bundles of Cycas stem are :

 
 
 
 

513. What is streptomycin?

 
 
 
 

514. Cycas revoluta is widely grown as :

 
 
 
 

515. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

517. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

519. Select the wrong statement:

 
 
 
 

520. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

522. The megasporangium of Selaginella is:

 
 
 
 

523. Majority of lichens are :

 
 
 
 

524. Metulae are found in:

 
 
 
 

525. Vascular tissue is found in :

 
 
 
 

526. Genetic material of TMV is:

 
 
 
 

527. Ovules are not found enclosed in ovary of:

 
 
 
 

528. Spermatophyta are characterized by producing:

 
 
 
 

529. Ulothrix produces :

 
 
 
 

530. Reserve food in Euglena is:

 
 
 
 

531. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

533. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

538. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

540. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

542. Late blight of potato is caused by :

 
 
 
 

543. Who discovered streptomycin?

 
 
 
 

544. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

546. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Lichens reproduce by :

 
 
 
 

550. The megaspore of Selaginella on germination produces:

 
 
 
 

551. Where does meiosis occur in yeast?

 
 
 
 

552. The gametophyte of fern bears:

 
 
 
 

553. Bacteria are considered to be plants because they:

 
 
 
 

554. Simple polyembryony is found in :

 
 
 
 

555. Which is not found in bacteria?

 
 
 
 

556. The gametophyte of moss has distinct phases :

 
 
 
 

557. Which of the following statements is not correct?

 
 
 
 

558. Amoeba is a member of the phylum:

 
 
 
 

559. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

561. Which is not true for Escherichia coli?

 
 
 
 

562. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

564. Generic name of mango is:

 
 
 
 

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

 
 
 
 

566. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

568. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. The smallest unit of classification is:

 
 
 
 

573. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

575. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

577. The rhizoids of Funaria are :

 
 
 
 

578. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

580. Which is an edible fungus?

 
 
 
 

581. Methanogens belong to:

 
 
 
 

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

 
 
 
 

583. Soil fertility is lost by the activities of:

 
 
 
 

584. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

587. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

588. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

590. The fungi are usually:

 
 
 
 

591. The tree fern is:

 
 
 
 

592. Select the correct statement: (NEET 2016)

 
 
 
 

593. Which lichen is called Reindeer moss?

 
 
 
 

594. In moss, reduction division occurs in :

 
 
 
 

595. Linnaeus is credited with introducing:

 
 
 
 

596. Viroids have:

 
 
 
 

597. Which of the following is a monocot?

 
 
 
 

598. Streptomycin is obtained from:

 
 
 
 

599. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. The spermatozoids of Cycas are :

 
 
 
 

603. Lichens form the first community in

 
 
 
 

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

 
 
 
 

605. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

607. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

609. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

612. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

615. Protists which are diploid reproduce sexually by:

 
 
 
 

616. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. Little leaf disease of Brinjal is caused by:

 
 
 
 

620. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

622. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

623.

 

624. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

626. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

630. Helotism word is used for the symbiosis between :

 
 
 
 

631. Pollination drop is:

 
 
 
 

632. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

635. Rhizopus belongs to:

 
 
 
 

636. Which of the following lichens is harmful?

 
 
 
 

637. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

640. Ergot is obtained from :

 
 
 
 

641. Black rust of wheat is caused by:

 
 
 
 

642. The smallest bacterium is:

 
 
 
 

643. Viruses are commonly transmitted in plants through:

 
 
 
 

644. 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?

 
 
 
 

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

 
 
 
 

646. Black rust of wheat is caused by:

 
 
 
 

647. Virion refers to:

 
 
 
 

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

 
 
 
 

649. Cell walls of Gram-positive bacteria contain:

 
 
 
 

650. In tracheophyta:

 
 
 
 

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

 
 
 
 

652. Citrus canker is caused by:

 
 
 
 

653. Ergot of rye is caused by:

 
 
 
 

654. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

659. Pasteur is famous for his:

 
 
 
 

660. Choose the correct statement about Spirogyra:

 
 
 
 

661. Lichens show :

 
 
 
 

662. Embryophyta includes :

 
 
 
 

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

 
 
 
 

664. LSD is:

 
 
 
 

665. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

669. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

671. Acellular slime mold is/are:

 
 
 
 

672. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

674. Discovery of penicillin was based on:

 
 
 
 

675. Club moss and Peat moss belong to:

 
 
 
 

676. Which is a fungicide?

 
 
 
 

677. Which is a tautonym?

 
 
 
 

678. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

680. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

685. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

687. Pinus gerardiana is :

 
 
 
 

688. Fertility of the soil is increased by:

 
 
 
 

689. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

692. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

696. Which of the following are included in Tracheophyta?

 
 
 
 

697. Chemosynthetic bacteria are:

 
 
 
 

698. Winged pollen grains are found in :

 
 
 
 

699. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

703. Germination of the seed of Pinus is :

 
 
 
 

704. What is absent in Deuteromycetes?

 
 
 
 

705. Which of the following are included in Tracheophyta?

 
 
 
 

706. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

707. Ovary is absent in :

 
 
 
 

708. Nannandria are:

 
 
 
 

709. Among the algae kelps are :

 
 
 
 

710. Select the wrong statement:

 
 
 
 

711. What is mycorrhiza?

 
 
 
 

712. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

714. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

717. Cycas is :

 
 
 
 

718. Mycoplasma are:

 
 
 
 

719. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

722. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

724. Downy mildew disease is caused by :

 
 
 
 

725. Centric discoid form of diatom is:

 
 
 
 

726. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

730. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

732. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

737. Most primitive embryophytes are placed in :

 
 
 
 

738. Yeast is a source of:

 
 
 
 

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

 
 
 
 

740. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

742. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

745. Most of the lichens are composed of :

 
 
 
 

746. Saccharomyces is used in:

 
 
 
 

747. Parmelia belongs to :

 
 
 
 

748. Rhizophore of Selaginella is:

 
 
 
 

749. Broad spectrum antibiotic is, which:

 
 
 
 

750. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Fern plants are:

 
 
 
 

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

 
 
 
 

756. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

758. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

760. Bacteria growing on synthetic medium are called:

 
 
 
 

761. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

763. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

766. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

770. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

772. Disease resistant plant varieties can be produced by :

 
 
 
 

773. Meiosis in Ulothrix takes place:

 
 
 
 

774. Clostridium can:

 
 
 
 

775. Bacteriophages have been used as:

 
 
 
 

776. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

780. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

782. Red rot of sugarcane is caused by :

 
 
 
 

783. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

786. Gram stain is used to:

 
 
 
 

787. Funaria are commonly found :

 
 
 
 

788. The fungi used as food are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. What is special feature of fern archegonia?

 
 
 
 

793. Pasteurized milk is:

 
 
 
 

794. Cycas is different from mango in :

 
 
 
 

795. Azolla and Salvinia both are:

 
 
 
 

796. John Hutchinson divided dicots into two divisions:

 
 
 
 

797. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

799. The middle sterile part of capsule is called:

 
 
 
 

800. The source of litmus is :

 
 
 
 

801. Asexual reproductive body of Volvox is called:

 
 
 
 

802. Enzymes are absent in:

 
 
 
 

803. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

806. Which is the nuclear material in bacteria?

 
 
 
 

807. Absorptive nutrition is:

 
 
 
 

808. Smallpox is caused by:

 
 
 
 

809. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

812. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

814. 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?

 
 
 
 

815. In Cycas:

 
 
 
 

816. Ginkgo biloba is a:

 
 
 
 

817. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

819. Pteridophyta are also called:

 
 
 
 

820. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

823. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

825. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

827. Rice, pea, potato are :

 
 
 
 

828. Which is a gametophytic tissue?

 
 
 
 

829. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

832. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

833. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

835. Interferon is a:

 
 
 
 

836. Which statement is wrong in regard to bacteria?

 
 
 
 

837. The male gametes of Pinus are :

 
 
 
 

838. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

840. Placenta in fern is:

 
 
 
 

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

 
 
 
 

842. Iodine is obtained from:

 
 
 
 

843. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

845. Lichens are pioneers of vegetation in a :

 
 
 
 

846. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

848. Fern prothallus is:

 
 
 
 

849. The zygospore in Rhizopus on germination forms:

 
 
 
 

850. Virus and bacteriophage are made-up of:

 
 
 
 

851. Kuru, a human disease is caused by:

 
 
 
 

852. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

853. Red rot of sugarcane is caused by:

 
 
 
 

854. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

857. Which among the following is a shrub?

 
 
 
 

858. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

860. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. The alga, Spirogyra are found in :

 
 
 
 

864. Multicellular and jacketed sex organs are found in :