Quiz_Random

1. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

2. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

4. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

6. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. Which is a tautonym?

 
 
 
 

11. Most common type of conjugation in Spirogyra is :

 
 
 
 

12. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

14. Pinus microsporophyll bears:

 
 
 
 

15. Penicillin was discovered by:

 
 
 
 

16. The sporophyte of Riccia is represented by :

 
 
 
 

17. Zoogametes are not found in:

 
 
 
 

18. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

20. Fern phloem lacks:

 
 
 
 

21. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

23. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Ovary is absent in :

 
 
 
 

28. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

30. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

32. Polystelic condition is found in:

 
 
 
 

33. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

35. Amoeba is a member of the phylum:

 
 
 
 

36. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39.

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

 
 
 
 

41. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Which of the following statements is not correct?

 
 
 
 

49. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

55. The spur of Pinus roxburghii has :

 
 
 
 

56. Lichens are pioneers of vegetation in a :

 
 
 
 

57. Male gametophyte of Selaginella is found:

 
 
 
 

58. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

66. Endemic plants are characterised by their:

 
 
 
 

67. Funaria can be differentiated from Cycas :

 
 
 
 

68. Facultative parasite is:

 
 
 
 

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

 
 
 
 

70. The mycelium of Rhizopus is:

 
 
 
 

71. The leaf of Cycas shows:

 
 
 
 

72. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

74. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

76. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

78. In Cycas microsporangia are borne on:

 
 
 
 

79. Late blight of potato is caused by:

 
 
 
 

80. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

82. The archegonia in Selaginella develop on:

 
 
 
 

83. Vascular tissue is found in :

 
 
 
 

84. Leaf spot of groundnut is caused by :

 
 
 
 

85.

86. Etiology includes the study of :

 
 
 
 

87. Indusium in Dryopteris is:

 
 
 
 

88. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. The spermatozoids of Cycas are :

 
 
 
 

92. Chief constituents of bordeaux mixture are :

 
 
 
 

93. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

95. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

97. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

99. Which of the following shows heterotrichous habit?

 
 
 
 

100. The tree fern is:

 
 
 
 

101. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

103. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

105. Which one of the following statement is wrong?

 
 
 
 

106. Cap cells are found in the filament of:

 
 
 
 

107. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

109. Isomorphic type alternation of generation is found in:

 
 
 
 

110. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

112. LSD is:

 
 
 
 

113. Antibiotics cure the disease by:

 
 
 
 

114. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

116. Lichens form the first community in

 
 
 
 

117. Heterocysts are found in :

 
 
 
 

118. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

123. Generic name of mango is:

 
 
 
 

124. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

127. Fern plants are:

 
 
 
 

128. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

131. Embryophyta includes :

 
 
 
 

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

 
 
 
 

133. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

135. Fruiting body of lichens is :

 
 
 
 

136. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

138. Bacteriophage consists of:

 
 
 
 

139. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

141. The genetic material of poxvirus is:

 
 
 
 

142. Most of the algae are :

 
 
 
 

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

 
 
 
 

144. 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:

 
 
 
 

145. The ferns are usually found:

 
 
 
 

146. In Gymnocarpeae the fruiting body is :

 
 
 
 

147. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

149. Most primitive embryophytes are placed in:

 
 
 
 

150. Meiosis in Ulothrix takes place:

 
 
 
 

151. Enzymes are absent in:

 
 
 
 

152. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

154. What is a vector?

 
 
 
 

155. Red rot of sugarcane is caused by:

 
 
 
 

156. The sori in Dryopteris are found on:

 
 
 
 

157. The zygospore in Rhizopus on germination forms:

 
 
 
 

158. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

160. Bacteria growing on synthetic medium are called:

 
 
 
 

161. Funaria is :

 
 
 
 

162. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

164. Streptomyces falls under:

 
 
 
 

165. Spermatophyta are characterized by producing:

 
 
 
 

166. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

168. Black rust of wheat is caused by:

 
 
 
 

169. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

172. E coli is a:

 
 
 
 

173. How a fern differs from a moss?

 
 
 
 

174. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

175. Which is absent from the xylem of Cycas?

 
 
 
 

176. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

178. Among the algae kelps are :

 
 
 
 

179. The fern plant is:

 
 
 
 

180. Pinus is:

 
 
 
 

181. Centric discoid form of diatom is:

 
 
 
 

182. The nucleus of bacteria is:

 
 
 
 

183. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

185. Mycoplasma is different from bacteria due to:

 
 
 
 

186. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

187. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

193. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

195. 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?

 
 
 
 

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

 
 
 
 

197. The male gametes of Pinus are :

 
 
 
 

198. Nitrifying bacteria play an important role by converting:

 
 
 
 

199. Linnaeus is credited with introducing:

 
 
 
 

200. In Cycas which structure is equivalent to stamen?

 
 
 
 

201. Fruits are not found in:

 
 
 
 

202. The mode of nutrition of bacteria is usually:

 
 
 
 

203. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

205. Botulinum toxin effects:

 
 
 
 

206. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

210. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

212. Select the correct statement: (NEET 2016)

 
 
 
 

213. Lichens are the indicator of pollution :

 
 
 
 

214. Acetobacter is useful in:

 
 
 
 

215. Why is Cycas called a living fossil?

 
 
 
 

216. Seeds are characteristically found in:

 
 
 
 

217. Leprosy is caused by:

 
 
 
 

218. Sometimes the bacterial cell is enclosed in:

 
 
 
 

219. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

222. Sleeping sickness disease in man is caused by:

 
 
 
 

223. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

225. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

227. Ergot of rye is caused by:

 
 
 
 

228. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

231. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

233. The sporangiophores in Rhizopus are:

 
 
 
 

234. In Pteris, the roots are:

 
 
 
 

235. Desired type of Cycas can be grown by:

 
 
 
 

236. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

243. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

245. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

247. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

252. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

254. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

256. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

258. Which part of Riccia bears nurse cells?

 
 
 
 

259. Viroids have:

 
 
 
 

260. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

262. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

264. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

269. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

271. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. Select the wrong statement:

 
 
 
 

276. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

279. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

282. Metulae are found in:

 
 
 
 

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

 
 
 
 

284. Which condition is found in Cycas?

 
 
 
 

285. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

286. Who discovered streptomycin?

 
 
 
 

287. Simple polyembryony is found in :

 
 
 
 

288. Which statement is wrong in regard to bacteria?

 
 
 
 

289. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

291. Citrus canker is caused by :

 
 
 
 

292. Mycoplasmas are not viruses in nature because:

 
 
 
 

293. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

295. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299. John Hutchinson divided dicots into two divisions:

 
 
 
 

300. What are plasmids?

 
 
 
 

301. In binomial system most of the words are:

 
 
 
 

302. Acellular slime mold is/are:

 
 
 
 

303. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

305. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

307. The antherozoids of Funaria are :

 
 
 
 

308. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

311. Ulothrix produces :

 
 
 
 

312. In angiosperms double fertilization represents:

 
 
 
 

313. 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:

 
 
 
 

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

 
 
 
 

315. 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:

 
 
 
 

316. Pseudomycelium is found in:

 
 
 
 

317. Lichens reproduce by :

 
 
 
 

318. How is moss different from fern?

 
 
 
 

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

 
 
 
 

320. Cocci types of bacteria are:

 
 
 
 

321. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

325. Yeast grows more rapidly in:

 
 
 
 

326. The microsporophylls on the cone of Cycas are :

 
 
 
 

327. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

334. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

336. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

340. Green plants are classified as :

 
 
 
 

341. Which causes red tide?

 
 
 
 

342. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

344. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

346. Heterotrichous habit means :

 
 
 
 

347. In moss, stomata are found:

 
 
 
 

348. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. In Cycas:

 
 
 
 

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

 
 
 
 

354. All algae have:

 
 
 
 

355. The middle sterile part of capsule is called:

 
 
 
 

356. Majority of lichens are :

 
 
 
 

357. Water bloom is generally caused by :

 
 
 
 

358. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. Ovules are not found enclosed in ovary in :

 
 
 
 

362. The gametophyte of moss has distinct phases :

 
 
 
 

363. The role of meiosis is for:

 
 
 
 

364. The largest known bacterium is:

 
 
 
 

365. Lichens reproduce by :

 
 
 
 

366. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

369. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

371. What is streptomycin?

 
 
 
 

372. Bacteriophages have been used as:

 
 
 
 

373. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

375. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

376. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380. Meristele of fern is:

 
 
 
 

381. Virion refers to:

 
 
 
 

382. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

384. Roots are absent in :

 
 
 
 

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

 
 
 
 

386. Black rust of wheat is caused by:

 
 
 
 

387. The truncated cone of HIV consists of:

 
 
 
 

388. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

391. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

393. Synzoospore is produced in:

 
 
 
 

394. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

396.

397. Bacteria were first discovered by:

 
 
 
 

398. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

400. True sexuality is not found in:

 
 
 
 

401. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

403. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

405. Sexual reproduction in Rhizopus is by:

 
 
 
 

406. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

408. Cryptogams include :

 
 
 
 

409. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

411. The leafy fern plant represents the:

 
 
 
 

412. First animal pathogenic virus was discovered by:

 
 
 
 

413. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

415. In Gymnosperms endosperm is a:

 
 
 
 

416. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

418. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

421. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

425. Cycas is :

 
 
 
 

426. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

428. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

430. In Herpes virus DNA is:

 
 
 
 

431. The seedless plants which possess vascular tissues are:

 
 
 
 

432. Yeast belongs to class:

 
 
 
 

433. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

435. Spermatophyta are characterized by producing:

 
 
 
 

436. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

439. Lichen show :

 
 
 
 

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

 
 
 
 

441. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

443. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

445. Funaria is :

 
 
 
 

446. The megasporangium of Selaginella is:

 
 
 
 

447. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

453. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

456. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

457. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

459. What is absent in Deuteromycetes?

 
 
 
 

460. Which class of Protozoa includes all parasitic forms?

 
 
 
 

461. Seeds are characteristically found in :

 
 
 
 

462. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

467. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

472. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

474. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

476. The order generally ends with:

 
 
 
 

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

 
 
 
 

478. All protozoans possess:

 
 
 
 

479. Halophiles are the bacteria that require for growth:

 
 
 
 

480. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

483. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

486. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

488. Streptomycin is obtained from:

 
 
 
 

489. Ginkgo biloba is a:

 
 
 
 

490. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

494. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

499. The gametophyte of fern bears:

 
 
 
 

500. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

502. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

503. Iodine is obtained from:

 
 
 
 

504. Most resistant spore in bacteria is:

 
 
 
 

505. Pasteur is famous for his:

 
 
 
 

506. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

509. Which is an edible fungus?

 
 
 
 

510. The largest alga is:

 
 
 
 

511. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

513. Winged pollen grains are found in :

 
 
 
 

514. Methanogens belong to:

 
 
 
 

515. Lichens show :

 
 
 
 

516. Facultative saprophyte is:

 
 
 
 

517. Who discovered cyanophages?

 
 
 
 

518. Coenogamete is found in:

 
 
 
 

519. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

524. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

526. Photosynthetic protists belong to:

 
 
 
 

527. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

529. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

531. Who among the following discovered virus?

 
 
 
 

532. 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:

 
 
 
 

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

 
 
 
 

534. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

536. Embryophyta includes:

 
 
 
 

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

 
 
 
 

538. Mycoplasma contains:

 
 
 
 

539. Placenta in fern is:

 
 
 
 

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

 
 
 
 

541. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

543. Mixed cropping helps :

 
 
 
 

544. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

547. The two conjugating gametangia of Rhizopus are:

 
 
 
 

548. Which of the following are included in Tracheophyta?

 
 
 
 

549. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

550. The roots of Cycas are :

 
 
 
 

551. Antibiotic has been extracted from :

 
 
 
 

552. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

554. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

555. Lichens are ecologically important because :

 
 
 
 

556. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

558. Gram stain is used to:

 
 
 
 

559. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

563. Downy mildew disease is caused by :

 
 
 
 

564. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

570. The disease symptom necrosis refers to :

 
 
 
 

571. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

573. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

575. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

577. Mycoplasma was discovered by:

 
 
 
 

578. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

581. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

586. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

591. Which organisms are the oldest life forms?

 
 
 
 

592. Ethylene oxide is widely used to:

 
 
 
 

593. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

595. The chromosomal number in:

 
 
 
 

596. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

598. Chemosynthetic bacteria are:

 
 
 
 

599. In a bacteriophage, DNA is present in:

 
 
 
 

600. Heterosporous pteridophytes always form:

 
 
 
 

601. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

603. Heterospory and ligulate leaves are a feature of:

 
 
 
 

604. Fruits are not found in :

 
 
 
 

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

 
 
 
 

606. The rhizoids of Funaria are :

 
 
 
 

607. Which of the following is sago palm?

 
 
 
 

608. Spirogyra differs from moss protonema in having :

 
 
 
 

609. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

611. The fungi used as food are:

 
 
 
 

612. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

614. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

616. Which of the following is a heterosporous pteridophyte?

 
 
 
 

617. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

619. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

623. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

625. Interferon is a:

 
 
 
 

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

 
 
 
 

627. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

629. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

631. Male gametes in Dryopteris are:

 
 
 
 

632. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

635. Pollination in Cycas takes place by :

 
 
 
 

636. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

638. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

640. Vegetative reproduction in Cycas is by means of :

 
 
 
 

641. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

643. Cyanophage is a virus that attacks:

 
 
 
 

644. Infective part of virus was discovered by:

 
 
 
 

645. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

647. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

648. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

650. Select the wrong statement:

 
 
 
 

651. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

653. Circular DNA is seen in:

 
 
 
 

654. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

656. Pythium debaryanum is the causative agent of:

 
 
 
 

657. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

659. Economic importance of bacteria lies in their being:

 
 
 
 

660. Black rust of wheat is caused by:

 
 
 
 

661. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

663. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

665. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

667. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

674. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

676. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

678. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

681. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

683. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

685. Green plants are classified as:

 
 
 
 

686. Embryo formation is not known in :

 
 
 
 

687. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

689. Which of the following is a parasitic algae?

 
 
 
 

690. The lambda phase is a:

 
 
 
 

691. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

693. Total parasites belong to:

 
 
 
 

694.

 

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

 
 
 
 

696. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

697. Which of the following is true for Selaginella?

 
 
 
 

698. The Rhizopus is:

 
 
 
 

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

 
 
 
 

700. Multicellular and jacketed sex organs are found in :

 
 
 
 

701. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

703. In dinoflagellates, the two flagella are:

 
 
 
 

704. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

707. Longest known virus is:

 
 
 
 

708. The Rhizopus gametes are formed in:

 
 
 
 

709. Most primitive embryophytes are placed in :

 
 
 
 

710. The disease apple scab is caused by:

 
 
 
 

711. Citrus canker is caused by:

 
 
 
 

712. The term stele was given by:

 
 
 
 

713. Cycas is:

 
 
 
 

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

 
 
 
 

715. Which fixes atmospheric nitrogen?

 
 
 
 

716. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

718. Which have the largest antherozoid?

 
 
 
 

719. Climbers are found in genus:

 
 
 
 

720. The photosynthetic protists are:

 
 
 
 

721. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

723. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

727. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

729. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

732. 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:

 
 
 
 

733. Photoautotrophic bacteria have:

 
 
 
 

734. Mucilaginous canals in Cycas are found in :

 
 
 
 

735. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. Enteric bacteria are those bacteria that live:

 
 
 
 

739. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

742. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

744. Viruses have:

 
 
 
 

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

 
 
 
 

746. Quarantine regulations are concerned with:

 
 
 
 

747. Which of the following statement is correct?

 
 
 
 

748. The root nodules of leguminous plants contain:

 
 
 
 

749. Azolla and Salvinia both are:

 
 
 
 

750. In a diplontic life cycle:

 
 
 
 

751. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

753. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

759. Reproduction in Rhizopus is:

 
 
 
 

760. Bacteria which are spherical are called:

 
 
 
 

761. To which country Antony van Leeuwenhoek belong?

 
 
 
 

762. Vascular cryptogam is the term used for :

 
 
 
 

763. The coralloid roots are :

 
 
 
 

764. Ectocarpus produces:

 
 
 
 

765. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

767. Siphonogamy is found in:

 
 
 
 

768. Wine turns sour because of:

 
 
 
 

769. Broad spectrum antibiotic is, which:

 
 
 
 

770. Protists which are diploid reproduce sexually by:

 
 
 
 

771. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

773. Disease resistant plant varieties can be produced by :

 
 
 
 

774. The first to isolate a plant virus was:

 
 
 
 

775. Fertility of the soil is increased by:

 
 
 
 

776. Smallpox is caused by:

 
 
 
 

777. Water-net is the name of:

 
 
 
 

778. Which of the following is true for viruses?

 
 
 
 

779. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

782. 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:

 
 
 
 

783. Who named prion?

 
 
 
 

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

 
 
 
 

785. Clostridium can:

 
 
 
 

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

 
 
 
 

787. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

788. Bacteria differ from viruses in being sensitive to:

 
 
 
 

789. Ovules are not found enclosed in ovary of:

 
 
 
 

790. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

793. The flagella of Chlamydomonas are:

 
 
 
 

794. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. 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?

 
 
 
 

798. Typhoid in man is caused by:

 
 
 
 

799. Absorptive nutrition is:

 
 
 
 

800. Where does meiosis occur in yeast?

 
 
 
 

801. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

805. Banana bunchy top is caused by :

 
 
 
 

806. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

809. The sporophyte of Riccia is :

 
 
 
 

810. Which one of the following is a monocot?

 
 
 
 

811. Botulism is a:

 
 
 
 

812. In tracheophyta:

 
 
 
 

813. Late blight of potato is caused by :

 
 
 
 

814. Which of the following are included in Tracheophyta?

 
 
 
 

815. Anoxygenic photosynthesis occurs in:

 
 
 
 

816. The DNA of E coli is:

 
 
 
 

817. Nitrogen-fixing bacteria may be located:

 
 
 
 

818. The source of litmus is :

 
 
 
 

819. All archaebacteria lack:

 
 
 
 

820. Protozoans are considered animals because these are:

 
 
 
 

821. Which is a gametophytic tissue?

 
 
 
 

822. Nannandria are:

 
 
 
 

823. Each chloroplast in Spirogyra bears :

 
 
 
 

824. Fern prothallus is:

 
 
 
 

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

 
 
 
 

826. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

829. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

831. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

834. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

836. Psilotum is:

 
 
 
 

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

 
 
 
 

838. The archegonia of Selaginella are differentiated by:

 
 
 
 

839. Mycoplasma are:

 
 
 
 

840. Soil fertility is lost by the activities of:

 
 
 
 

841. Azolla growing in paddy fields helps in:

 
 
 
 

842. Pollination drop is:

 
 
 
 

843. In moss, calyptra is formed from:

 
 
 
 

844. Redness of red sea is due to :

 
 
 
 

845. In Pteris, the archegonia are present:

 
 
 
 

846. Plasmids are:

 
 
 
 

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

 
 
 
 

848. Bryophyta have been placed in cryptogams because:

 
 
 
 

849. What is mycorrhiza?

 
 
 
 

850. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

855. Which of the following does not contain chlorophyll?

 
 
 
 

856. The chloroplast of Chlamydomonas are:

 
 
 
 

857. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

859. Bacteria are considered to be plants because they:

 
 
 
 

860. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

862. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

864. Liverworts are included in :