Quiz_Random

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

6. The gametophyte of moss has distinct phases :

 
 
 
 

7. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

9. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Funaria is :

 
 
 
 

15. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

17. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

23. Winged pollen grains are found in :

 
 
 
 

24. Fern plants are:

 
 
 
 

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

 
 
 
 

26. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Germ theory of disease was proposed by:

 
 
 
 

37. Pasteurized milk is:

 
 
 
 

38. Multicellular and jacketed sex organs are found in :

 
 
 
 

39. Yeast is a source of:

 
 
 
 

40. Pasteur is famous for his:

 
 
 
 

41. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Iodine is obtained from :

 
 
 
 

45. The fern plant is:

 
 
 
 

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

 
 
 
 

47. Bacteria differ from viruses in being sensitive to:

 
 
 
 

48. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

50. In moss, reduction division occurs in :

 
 
 
 

51. The development of Selaginella embryo is:

 
 
 
 

52. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

54. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Sleeping sickness disease in man is caused by:

 
 
 
 

64. In Pteris, the roots are:

 
 
 
 

65. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

68. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

70. What is mycorrhiza?

 
 
 
 

71. Seeds are characteristically found in :

 
 
 
 

72. Which is not true for Escherichia coli?

 
 
 
 

73. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Green plants are classified as:

 
 
 
 

77. A gill of Agaricus:

 
 
 
 

78. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

85. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

87. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

89. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

91. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. 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:

 
 
 
 

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

 
 
 
 

96. Pseudomycelium is found in:

 
 
 
 

97. Halophiles are the bacteria that require for growth:

 
 
 
 

98. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. The chief characteristic of class Ascomycetes is:

 
 
 
 

102. Heterospory and ligulate leaves are a feature of:

 
 
 
 

103. Fruits are not found in :

 
 
 
 

104. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. Which of the following is a parasitic algae?

 
 
 
 

108. True sexuality is not found in:

 
 
 
 

109. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

111. Black rust of wheat is caused by:

 
 
 
 

112. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

114. To which country Antony van Leeuwenhoek belong?

 
 
 
 

115. Metulae are found in:

 
 
 
 

116. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. Which one of the following is a monocot?

 
 
 
 

120. Protozoans are considered animals because these are:

 
 
 
 

121. Fern prothallus is:

 
 
 
 

122. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

123. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

130. Saccharomyces ludwigii ascus produces:

 
 
 
 

131. The group algae possesses representatives belonging to kingdom:

 
 
 
 

132. The microsporophylls on the cone of Cycas are :

 
 
 
 

133. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

136. The young leaves of Cycas have :

 
 
 
 

137. Plasmids are:

 
 
 
 

138. Coenogamete is found in:

 
 
 
 

139. Who discovered heterothallism in fungi?

 
 
 
 

140. The largest known bacterium is:

 
 
 
 

141. All algae have:

 
 
 
 

142. All protozoans possess:

 
 
 
 

143. Which is the nuclear material in bacteria?

 
 
 
 

144. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

146. One of the distinctive feature of Spirogyra is :

 
 
 
 

147. Who among the following discovered virus?

 
 
 
 

148. Siphonogamy is found in:

 
 
 
 

149. Pneumonia is caused by:

 
 
 
 

150. Pinus gerardiana is :

 
 
 
 

151. Bacteria which are spherical are called:

 
 
 
 

152. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. In tracheophyta:

 
 
 
 

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

 
 
 
 

159. Select the wrong statement:

 
 
 
 

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

 
 
 
 

161. The ascus of yeast contains:

 
 
 
 

162. Parmelia belongs to :

 
 
 
 

163. In Pteris, the archegonia are present:

 
 
 
 

164. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

166. Azolla growing in paddy fields helps in:

 
 
 
 

167. Fruiting body of lichens is :

 
 
 
 

168. Each chloroplast in Spirogyra bears :

 
 
 
 

169. The smallest bacterium is:

 
 
 
 

170. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

172. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

174. In Gymnocarpeae the fruiting body is :

 
 
 
 

175. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

178. Roots are absent in :

 
 
 
 

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

 
 
 
 

180. Special feature of pollen grains of Pinus is :

 
 
 
 

181. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. Who discovered cyanophages?

 
 
 
 

185. Early blight of potato is caused by:

 
 
 
 

186. Rice, pea, potato are :

 
 
 
 

187. LSD is:

 
 
 
 

188. Which of the following lichens is harmful?

 
 
 
 

189. Funaria can be differentiated from Cycas :

 
 
 
 

190. The middle sterile part of capsule is called:

 
 
 
 

191. The upper region of moss capsule is :

 
 
 
 

192. Milk is converted to curd by:

 
 
 
 

193. Agar-agar is obtained from:

 
 
 
 

194. Which of the following is true for Selaginella?

 
 
 
 

195. In Selaginella, the microsporangia are:

 
 
 
 

196. The zygospore in Rhizopus on germination forms:

 
 
 
 

197. Antibiotics cure the disease by:

 
 
 
 

198. The antherozoids of Funaria are :

 
 
 
 

199. Bacteriophage consists of:

 
 
 
 

200. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

202. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

208. The alga, Spirogyra are found in :

 
 
 
 

209. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

211. Bentham and Hooker placed gymnosperms:

 
 
 
 

212. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

214. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

219. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

221. Cycas is :

 
 
 
 

222. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

224.

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

 
 
 
 

226. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

229. John Hutchinson divided dicots into two divisions:

 
 
 
 

230. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

232. The fungi used as food are:

 
 
 
 

233. The lambda phase is a:

 
 
 
 

234. Mycoplasma is different from bacteria due to:

 
 
 
 

235.

 

236. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

240. The disease symptom necrosis refers to :

 
 
 
 

241. Gametophyte is the main plant body in :

 
 
 
 

242. Mucilaginous canals in Cycas are found in :

 
 
 
 

243. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

245. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

247. Most appropriate word for protozoans is:

 
 
 
 

248. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

250. Acellular slime mold is/are:

 
 
 
 

251. Which lichen is called Reindeer moss?

 
 
 
 

252. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. Absorptive nutrition is:

 
 
 
 

256. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

260. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

262. Which one of the following statement is wrong?

 
 
 
 

263. In Cycas:

 
 
 
 

264. What is special feature of fern archegonia?

 
 
 
 

265. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

267. Streptomyces falls under:

 
 
 
 

268. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

270. Late blight of potato is caused by:

 
 
 
 

271. Sexual reproduction in Rhizopus is by:

 
 
 
 

272.

273. The sporangium of fern contains nearly:

 
 
 
 

274. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

275. The phloem of vascular system of Cycas is :

 
 
 
 

276. Mixed cropping helps :

 
 
 
 

277. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

279. Germination of the seed of Pinus is :

 
 
 
 

280. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

282. 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?

 
 
 
 

283. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

285. Winged seeds are found in :

 
 
 
 

286. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

288. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

290. The leafy fern plant represents the:

 
 
 
 

291. Longest known virus is:

 
 
 
 

292. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

294. Embryophyta includes:

 
 
 
 

295. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

298. Which of the following is a heterosporous pteridophyte?

 
 
 
 

299. Water-net is the name of:

 
 
 
 

300. The fungi are usually:

 
 
 
 

301. The mode of nutrition of bacteria is usually:

 
 
 
 

302. Bryophyta have been placed in cryptogams because:

 
 
 
 

303. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

304. Cryptogams include :

 
 
 
 

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

 
 
 
 

306. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

310. White rust of crucifers is caused by:

 
 
 
 

311. Male gametophyte of Selaginella is found:

 
 
 
 

312. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

316. The male gametes of Pinus are :

 
 
 
 

317. Virion refers to:

 
 
 
 

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

 
 
 
 

319. Why is Cycas called a living fossil?

 
 
 
 

320. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

323. Lichens form the first community in

 
 
 
 

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

 
 
 
 

325. Water-borne bacterial diseases are:

 
 
 
 

326. Banana bunchy top is caused by :

 
 
 
 

327. Funaria are commonly found :

 
 
 
 

328. Most primitive embryophytes are placed in :

 
 
 
 

329. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

331. Heterocysts are found in :

 
 
 
 

332. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. The smallest unit of classification is:

 
 
 
 

337. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

339. Aflatoxin is produced as a product in :

 
 
 
 

340. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

342. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

347. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

350. Pollination drop is:

 
 
 
 

351. Viroids have:

 
 
 
 

352. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

354. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

358. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

360. Lichens are indicators of :

 
 
 
 

361. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

363. Spores of which plants have chloroplast:

 
 
 
 

364. Male gametes in Dryopteris are:

 
 
 
 

365. Which of the following have a prokaryotic cell?

 
 
 
 

366. Lichens reproduce by :

 
 
 
 

367. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

369. The term stele was given by:

 
 
 
 

370. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

372. 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:

 
 
 
 

373. Cycas is:

 
 
 
 

374. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

376. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

378. Some biologists have used the term Mycetozoa for:

 
 
 
 

379. Which is a fungicide?

 
 
 
 

380. Penicillin was discovered by:

 
 
 
 

381. The roots of Cycas are :

 
 
 
 

382. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

384. Black rust of wheat is caused by:

 
 
 
 

385. The antibiotic is obtained from:

 
 
 
 

386. The source of litmus is :

 
 
 
 

387. The archegonia in Selaginella develop on:

 
 
 
 

388. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

390. How a fern differs from a moss?

 
 
 
 

391. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

393. Funaria is a Bryophyta because :

 
 
 
 

394. Rhizoids of Riccia are :

 
 
 
 

395. Gram stain is used to:

 
 
 
 

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

 
 
 
 

397. The sporangia of Selaginella are attached:

 
 
 
 

398. Which of the following is a monocot?

 
 
 
 

399. Spirogyra differs from moss protonema in having :

 
 
 
 

400. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

402. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

404. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

405. Tautonyms are illegitimate in:

 
 
 
 

406. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

408. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

411. . Tapetum develops in:

 
 
 
 

412. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

414. The sporangiophores in Rhizopus are:

 
 
 
 

415. Lichens show :

 
 
 
 

416. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

418. Which bacteria convert nitrate into nitrogen?

 
 
 
 

419. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

421. The ferns are usually found:

 
 
 
 

422. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

424. What are plasmids?

 
 
 
 

425. Helotism word is used for the symbiosis between :

 
 
 
 

426. Synzoospore is produced in:

 
 
 
 

427. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

432. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

435. What is streptomycin?

 
 
 
 

436. The nucleus of bacteria is:

 
 
 
 

437. In moss, conducting tissue is made up of

 
 
 
 

438. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

440. Fern phloem lacks:

 
 
 
 

441. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

445. Funaria is :

 
 
 
 

446. Pollination in Pinus is :

 
 
 
 

447. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

449. Select the correct statement: (NEET 2016)

 
 
 
 

450. Meiosis in Ulothrix takes place:

 
 
 
 

451. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

453. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

455. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

459. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

468. Zoogametes are not found in:

 
 
 
 

469. Facultative parasite is:

 
 
 
 

470. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

476. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

478. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

486. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

488. The megasporangium of Selaginella is:

 
 
 
 

489. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

491. Lichen show :

 
 
 
 

492. Which is an exception to cell theory?

 
 
 
 

493. Kuru, a human disease is caused by:

 
 
 
 

494. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

495. Sexual reproduction of lichen is due to :

 
 
 
 

496. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

499. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

501. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

503. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Lichens are the indicator of pollution :

 
 
 
 

507. Most primitive embryophytes are placed in:

 
 
 
 

508. Discovery of penicillin was based on:

 
 
 
 

509. Amoeba is a member of the phylum:

 
 
 
 

510. Acetobacter is useful in:

 
 
 
 

511. Cyathia is characterized by:

 
 
 
 

512. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

514. The central part of Funaria axis is :

 
 
 
 

515. Usually, bacteria reproduce by:

 
 
 
 

516. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

519. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

522. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

524. Photosynthetic bacteria have:

 
 
 
 

525. Chemosynthetic bacteria are:

 
 
 
 

526. The two conjugating gametangia of Rhizopus are:

 
 
 
 

527. Nannandria are:

 
 
 
 

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

 
 
 
 

529. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

531. 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:

 
 
 
 

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

 
 
 
 

533. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

535. Pinus microsporophyll bears:

 
 
 
 

536. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

538. Who named prion?

 
 
 
 

539. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

546. To which class Riccia belongs :

 
 
 
 

547. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

549. Typhoid in man is caused by:

 
 
 
 

550. Pythium debaryanum is the causative agent of:

 
 
 
 

551. 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:

 
 
 
 

552. Saccharomyces is well known for:

 
 
 
 

553. Viruses have:

 
 
 
 

554. Small epidermal swellings due to infection are called :

 
 
 
 

555. Saccharomyces is used in:

 
 
 
 

556. The stele of Dryopteris is a:

 
 
 
 

557. Ulothrix produces :

 
 
 
 

558. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

561. Little leaf disease of Brinjal is caused by:

 
 
 
 

562. The tallest moss in the world is :

 
 
 
 

563. In Funaria :

 
 
 
 

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

 
 
 
 

565. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

570. Which of the following statement is correct?

 
 
 
 

571. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

573. Which among the following is a shrub?

 
 
 
 

574. Psilotum is:

 
 
 
 

575. The gametophyte of fern bears:

 
 
 
 

576. Linnaeus is credited with introducing:

 
 
 
 

577. Cleavage polyembryony is found in :

 
 
 
 

578. What is a vector?

 
 
 
 

579. Placenta in fern is:

 
 
 
 

580. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

582. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

584. Proembryo in Pinus is :

 
 
 
 

585. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

587. Cocci types of bacteria are:

 
 
 
 

588. How is moss different from fern?

 
 
 
 

589. The chief characteristic of bryophyta is that :

 
 
 
 

590. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

593. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

597. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

599. The gametophyte produced by apospory is :

 
 
 
 

600. The leaves of Funaria are :

 
 
 
 

601. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

605. In a bacteriophage, DNA is present in:

 
 
 
 

606. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. Most common type of conjugation in Spirogyra is :

 
 
 
 

611. The Rhizopus is:

 
 
 
 

612. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

614. Antibiotic has been extracted from :

 
 
 
 

615. Which causes red tide?

 
 
 
 

616. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

622. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

624. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

625. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

628. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

631. The photosynthetic protists are:

 
 
 
 

632. Lichens are pioneers of vegetation in a :

 
 
 
 

633. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

635. What are Cyanobacteria?

 
 
 
 

636. Viruses are considered to be:

 
 
 
 

637. Embryo formation is not known in :

 
 
 
 

638. Ectocarpus produces:

 
 
 
 

639. The prothallus of fern represents the plant:

 
 
 
 

640. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

642. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

643. Lichens reproduce by :

 
 
 
 

644. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

646. Some bacteria cannot be killed easily because of:

 
 
 
 

647. TMV was isolated in crystalline form by:

 
 
 
 

648. Anoxygenic photosynthesis occurs in:

 
 
 
 

649. Clostridium can:

 
 
 
 

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

 
 
 
 

651. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

653. Fruits are not found in:

 
 
 
 

654. Pteridophytes are also known as :

 
 
 
 

655. The most important property of yeast is:

 
 
 
 

656. Selaginella differs from Moss in having:

 
 
 
 

657. In Cycas the fertilization is:

 
 
 
 

658. Rhizopus belongs to:

 
 
 
 

659. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

661. Lichens are ecologically important because :

 
 
 
 

662. The role of meiosis is for:

 
 
 
 

663. Which part of Riccia bears nurse cells?

 
 
 
 

664. Rhizophore of Selaginella is:

 
 
 
 

665.

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

 
 
 
 

667. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

671. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

674. Which group of algae have an incipient nucleus?

 
 
 
 

675. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

679. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

681. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

683. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

688. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

690. Streptomycin is obtained from:

 
 
 
 

691. The disease apple scab is caused by:

 
 
 
 

692. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

697. Who discovered streptomycin?

 
 
 
 

698. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

700. Leprosy is caused by:

 
 
 
 

701. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

704. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

707. Which is a redwood tree?

 
 
 
 

708. 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?

 
 
 
 

709. Redness of red sea is due to :

 
 
 
 

710. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

712. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

714. Photosynthetic protists belong to:

 
 
 
 

715. In Cycas which structure is equivalent to stamen?

 
 
 
 

716. Common phycobiont in a lichen is :

 
 
 
 

717. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

718. Woody climbers are known as :

 
 
 
 

719. Broad spectrum antibiotic is, which:

 
 
 
 

720. Which have the largest antherozoid?

 
 
 
 

721. Polystelic condition is found in:

 
 
 
 

722. Most of the lichens are composed of :

 
 
 
 

723. Red rot of sugarcane is caused by:

 
 
 
 

724. Mycoplasma are sensitive to:

 
 
 
 

725. Which of the following shows heterotrichous habit?

 
 
 
 

726. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

728. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

731. Pinus is:

 
 
 
 

732. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

734. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

736. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

737. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

740. 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?

 
 
 
 

741. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

743. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

745. Which organisms are the oldest life forms?

 
 
 
 

746. Botulism is a:

 
 
 
 

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

 
 
 
 

748. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

750. Pasteurization of milk involves heating for:

 
 
 
 

751. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. In Funaria, calyptra is derived from :

 
 
 
 

755. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

757. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

759. Soil fertility is lost by the activities of:

 
 
 
 

760. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

762. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

766. Black rust of wheat is caused by:

 
 
 
 

767. The chloroplast in Ulothrix is :

 
 
 
 

768. Embryophyta includes :

 
 
 
 

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

 
 
 
 

770. Sporophyte of Funaria is :

 
 
 
 

771. Total parasites belong to:

 
 
 
 

772. The sori in Dryopteris are found on:

 
 
 
 

773. Generic name of mango is:

 
 
 
 

774. The teeth of peristome of Funaria are :

 
 
 
 

775. Nitrifying bacteria play an important role by converting:

 
 
 
 

776. Fruits are not found in Cycas because:

 
 
 
 

777. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

779. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

781. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

783. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

785. Sometimes the bacterial cell is enclosed in:

 
 
 
 

786. Club moss and Peat moss belong to:

 
 
 
 

787. 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:

 
 
 
 

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

 
 
 
 

789. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. The leaves of Funaria are :

 
 
 
 

798. Centric discoid form of diatom is:

 
 
 
 

799. Pythium debaryanum is the causative agent of:

 
 
 
 

800. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

803. Methanogens belong to:

 
 
 
 

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

 
 
 
 

805. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

807. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

809. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

814. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

816. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

818. Which is a tautonym?

 
 
 
 

819. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

823. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

826. Chief constituents of bordeaux mixture are :

 
 
 
 

827. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

828. The order generally ends with:

 
 
 
 

829. Interferon is a:

 
 
 
 

830. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

837. Liverworts are included in :

 
 
 
 

838. Vascular tissue is found in :

 
 
 
 

839. Aflatoxin is produced by:

 
 
 
 

840. Fern prothallus produces:

 
 
 
 

841. Heterosporous pteridophytes always form:

 
 
 
 

842. Meristele of fern is:

 
 
 
 

843. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

847. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. Ovary is absent in:

 
 
 
 

851. Cycas is different from mango in :

 
 
 
 

852. The vascular bundles of Cycas stem are :

 
 
 
 

853. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

854. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

856. The most primitive vascular plants is:

 
 
 
 

857. What is absent in Deuteromycetes?

 
 
 
 

858. In Gymnosperms endosperm is a:

 
 
 
 

859. The genetic material of poxvirus is:

 
 
 
 

860. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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