Quiz_Random

1. The zygospore in Rhizopus on germination forms:

 
 
 
 

2. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

4. The development of sporangium in Selaginella is:

 
 
 
 

5. White rust of crucifers is caused by:

 
 
 
 

6. Most of the algae are :

 
 
 
 

7. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

8. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

10. Who discovered cyanophages?

 
 
 
 

11. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. In a diplontic life cycle:

 
 
 
 

15. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

17. Bacteria are found everywhere, except:

 
 
 
 

18. Total parasites belong to:

 
 
 
 

19. The Rhizopus is:

 
 
 
 

20. Sometimes the bacterial cell is enclosed in:

 
 
 
 

21. Ulothrix produces :

 
 
 
 

22. Disease resistant plant varieties can be produced by :

 
 
 
 

23. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

27. Agar-agar is obtained from:

 
 
 
 

28. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Late blight of potato is caused by:

 
 
 
 

32. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

34. The mycelium of Rhizopus is:

 
 
 
 

35. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

37. Cellular slime mold is:

 
 
 
 

38. Number of capsomeres forming capsid of TMV is:

 
 
 
 

39. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Photosynthetic protists belong to:

 
 
 
 

43. Sexual reproduction of lichen is due to :

 
 
 
 

44. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

49. 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?

 
 
 
 

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

 
 
 
 

51. Choose the correct statement about Spirogyra:

 
 
 
 

52. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

55. Among the algae kelps are :

 
 
 
 

56. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

58. Virus and bacteriophage are made-up of:

 
 
 
 

59. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

61. The fungi are mostly:

 
 
 
 

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

 
 
 
 

63. 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:

 
 
 
 

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

 
 
 
 

65. Pollination drop is:

 
 
 
 

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

 
 
 
 

67. The chief characteristic of class Ascomycetes is:

 
 
 
 

68. Ginkgo biloba is a:

 
 
 
 

69. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

71. In tracheophyta:

 
 
 
 

72. Funaria can be differentiated from Cycas :

 
 
 
 

73. Zoogametes are not found in:

 
 
 
 

74. TMV was isolated in crystalline form by:

 
 
 
 

75. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

77. The sporophyte of Riccia is :

 
 
 
 

78. Pythium debaryanum is the causative agent of:

 
 
 
 

79. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Pteridophytes are also known as :

 
 
 
 

84. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

86. The fungi used as food are:

 
 
 
 

87. Cocci types of bacteria are:

 
 
 
 

88. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

90. Bryophyta have a special character from other plants:

 
 
 
 

91. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

93. Which is an edible fungus?

 
 
 
 

94. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

95. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

97. The leaves of Funaria are :

 
 
 
 

98. In Funaria :

 
 
 
 

99. Citrus canker is caused by:

 
 
 
 

100. Which class of Protozoa includes all parasitic forms?

 
 
 
 

101. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

103. Cyanophage is a virus that attacks:

 
 
 
 

104. Botulism is a:

 
 
 
 

105. Which of the following is true for Selaginella?

 
 
 
 

106. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

107. Most primitive kind of flower is represented by:

 
 
 
 

108. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

110. Rice, pea, potato are :

 
 
 
 

111. Seeds are characteristically found in:

 
 
 
 

112. Most appropriate word for protozoans is:

 
 
 
 

113. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

117. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

120. Protists which are diploid reproduce sexually by:

 
 
 
 

121. Protozoans are considered animals because these are:

 
 
 
 

122. Seeds are characteristically found in :

 
 
 
 

123. Embryophyta includes :

 
 
 
 

124. Nitrogen-fixing bacteria may be located:

 
 
 
 

125. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

126. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

129. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

136. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

138. Vascular tissue is found in :

 
 
 
 

139. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

142. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

146. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

154. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157.

158. Spirogyra differs from moss protonema in having :

 
 
 
 

159. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

161. 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:

 
 
 
 

162. The seedless plants which possess vascular tissues are:

 
 
 
 

163.

 

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

 
 
 
 

165. Soil fertility is lost by the activities of:

 
 
 
 

166. Ovary is absent in :

 
 
 
 

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

 
 
 
 

168. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

169. Streptomycin is obtained from:

 
 
 
 

170. . Tapetum develops in:

 
 
 
 

171. Triple antigen injection or vaccine are for:

 
 
 
 

172. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

174. In moss, sporophyte is formed on:

 
 
 
 

175. Virion refers to:

 
 
 
 

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

 
 
 
 

177. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

181. Yeast belongs to class:

 
 
 
 

182. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

186. The spermatozoids of Cycas are :

 
 
 
 

187. 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?

 
 
 
 

188. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

191. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

192. Facultative saprophyte is:

 
 
 
 

193. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

195. Diploxylic vascular bundles are found in:

 
 
 
 

196. Bacteria are placed under:

 
 
 
 

197. The plants of Funaria grow :

 
 
 
 

198. Antibiotic has been extracted from :

 
 
 
 

199. Pasteurized milk is:

 
 
 
 

200. Lichens form the first community in

 
 
 
 

201. Most common type of conjugation in Spirogyra is :

 
 
 
 

202. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

204. Mycoplasma are:

 
 
 
 

205. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

208. Pneumonia is caused by:

 
 
 
 

209. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

212. Which is absent from the xylem of Cycas?

 
 
 
 

213. The sporangia of Selaginella are attached:

 
 
 
 

214. Bacteriophages have been used as:

 
 
 
 

215. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

217. Which is a redwood tree?

 
 
 
 

218. In Cycas:

 
 
 
 

219. The similarity between cyanobacteria and bacteria:

 
 
 
 

220. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

222. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

224. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

226. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

228. Aflatoxin is produced as a product in :

 
 
 
 

229. Mycoplasma are sensitive to:

 
 
 
 

230. Fern phloem lacks:

 
 
 
 

231. Acetobacter is useful in:

 
 
 
 

232. The Rhizopus gametes are formed in:

 
 
 
 

233. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. Gram stain is used to:

 
 
 
 

237. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

241. Bryophyta have been placed in cryptogams because:

 
 
 
 

242. Chemosynthetic bacteria are:

 
 
 
 

243. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

246. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

247. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

248. The most important property of yeast is:

 
 
 
 

249. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

252. The sporangium of fern contains nearly:

 
 
 
 

253. Bacteria are considered to be plants because they:

 
 
 
 

254. Etiology includes the study of :

 
 
 
 

255. Bacteria differ from viruses in being sensitive to:

 
 
 
 

256. Fern prothallus is:

 
 
 
 

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

 
 
 
 

258. Lichen show :

 
 
 
 

259. Bacteria were first discovered by:

 
 
 
 

260. Vascular cryptogams is the term used for:

 
 
 
 

261. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

264. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

266. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

267. John Hutchinson divided dicots into two divisions:

 
 
 
 

268. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

270. The disease symptom necrosis refers to :

 
 
 
 

271. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

274. Bivalved siliceous shell or frustule occur in:

 
 
 
 

275. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

277. Where does meiosis occur in yeast?

 
 
 
 

278. 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:

 
 
 
 

279. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

281. An alga which is rich in proteins:

 
 
 
 

282. Which bacteria convert nitrate into nitrogen?

 
 
 
 

283. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

288. The archegonia of Selaginella are differentiated by:

 
 
 
 

289. Bacteriophage consists of:

 
 
 
 

290. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

292. Protistan algae obtain their food as:

 
 
 
 

293. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

295. Reproduction in Rhizopus is:

 
 
 
 

296. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

301. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

304. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

306. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

308. What are Cyanobacteria?

 
 
 
 

309. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

313. Plasmids are:

 
 
 
 

314. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

317. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

320. The male gametes of Pinus are :

 
 
 
 

321. Citrus canker is caused by :

 
 
 
 

322. The smallest unit of classification is:

 
 
 
 

323. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

327. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

329. Late blight of potato is caused by :

 
 
 
 

330. Which statement is wrong in regard to bacteria?

 
 
 
 

331. Fruits are not found in Cycas because:

 
 
 
 

332. The chromosomal number in:

 
 
 
 

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

 
 
 
 

334. The leafy fern plant represents the:

 
 
 
 

335. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

339. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

342. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

346. First animal pathogenic virus was discovered by:

 
 
 
 

347. Penicillin was discovered by:

 
 
 
 

348. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

350. What is mycorrhiza?

 
 
 
 

351. The photosynthetic protists are:

 
 
 
 

352. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

354. Which is a fungicide?

 
 
 
 

355. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

357. Lichens are the indicator of pollution :

 
 
 
 

358. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

360. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

361. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. Red rot of sugarcane is caused by :

 
 
 
 

365. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

368. How is moss different from fern?

 
 
 
 

369. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

371. What is absent in Deuteromycetes?

 
 
 
 

372. All protozoans possess:

 
 
 
 

373. Mycoplasma was discovered by:

 
 
 
 

374. Metulae are found in:

 
 
 
 

375. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

377. The fern plant is:

 
 
 
 

378. Siphonogamy is found in:

 
 
 
 

379. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

381. Who named prion?

 
 
 
 

382. Lichens are indicators of :

 
 
 
 

383. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

386. Facultative parasite is:

 
 
 
 

387. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

389. Helotism word is used for the symbiosis between :

 
 
 
 

390. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

392. Oswald Tippo’s classification is:

 
 
 
 

393. The rhizoids of Funaria are :

 
 
 
 

394. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

398. Cell walls of Gram-positive bacteria contain:

 
 
 
 

399. Which one of the following statement is wrong?

 
 
 
 

400. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

402. Black rust of wheat is caused by:

 
 
 
 

403. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

405. One of the distinctive feature of Spirogyra is :

 
 
 
 

406. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

409. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

410. The largest alga is:

 
 
 
 

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

 
 
 
 

412. Rhizophore of Selaginella is:

 
 
 
 

413. The microsporophylls on the cone of Cycas are :

 
 
 
 

414. The prothallus of fern represents the plant:

 
 
 
 

415. Who discovered heterothallism in fungi?

 
 
 
 

416. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

418. Gametophyte is the main plant body in :

 
 
 
 

419. Which is the nuclear material in bacteria?

 
 
 
 

420. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

422. Ovules are not found enclosed in ovary in :

 
 
 
 

423. Which of the following shows heterotrichous habit?

 
 
 
 

424. The phloem of vascular system of Cycas is :

 
 
 
 

425. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

428. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

430. Club moss and Peat moss belong to:

 
 
 
 

431. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

433. Typhoid in man is caused by:

 
 
 
 

434. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. Which causes red tide?

 
 
 
 

438. The truncated cone of HIV consists of:

 
 
 
 

439.

440. The antherozoids of Funaria are :

 
 
 
 

441. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

445. 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:

 
 
 
 

446. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

448. The lambda phase is a:

 
 
 
 

449. The stele of Dryopteris is a:

 
 
 
 

450. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

452. The root nodules of leguminous plants contain:

 
 
 
 

453. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

456. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

459. Fern plants are:

 
 
 
 

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

 
 
 
 

461. Kuru, a human disease is caused by:

 
 
 
 

462. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

467. Infective part of virus was discovered by:

 
 
 
 

468. The vascular bundles of Cycas stem are :

 
 
 
 

469. Black rust of wheat is caused by:

 
 
 
 

470. Pinus is:

 
 
 
 

471. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. Azolla growing in paddy fields helps in:

 
 
 
 

475. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

477. Viruses are considered to be:

 
 
 
 

478. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

481. Which is a tautonym?

 
 
 
 

482. The smallest bacterium is:

 
 
 
 

483. Lichens are pioneers of vegetation in a :

 
 
 
 

484. The role of meiosis is for:

 
 
 
 

485. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

490. In dinoflagellates, the two flagella are:

 
 
 
 

491. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

493. Most resistant spore in bacteria is:

 
 
 
 

494. In Pteris, the archegonia are present:

 
 
 
 

495. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498. All algae have:

 
 
 
 

499. The development of Selaginella embryo is:

 
 
 
 

500. Sporophyte of fern is:

 
 
 
 

501. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

503. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

505. Acellular slime mold is/are:

 
 
 
 

506. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

508. In moss, stomata are found:

 
 
 
 

509. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

516. Longest known virus is:

 
 
 
 

517. Meristele of fern is:

 
 
 
 

518. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

522. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

524. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

526. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

529. Chemosynthetic bacteria are:

 
 
 
 

530. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

534. Cyathia is characterized by:

 
 
 
 

535. Funaria is a Bryophyta because :

 
 
 
 

536. Mycoplasma is different from bacteria due to:

 
 
 
 

537. Photoautotrophic bacteria have:

 
 
 
 

538. Mostly type of zygospore in Ulothrix is:

 
 
 
 

539. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

545. Saccharomyces is well known for:

 
 
 
 

546. The sori in Dryopteris are found on:

 
 
 
 

547. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

549. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

553. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

555. Which lichen is called Reindeer moss?

 
 
 
 

556. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

560. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

562. 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:

 
 
 
 

563. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

565. Mycoplasma contains:

 
 
 
 

566. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

568. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

570. Pseudomycelium is found in:

 
 
 
 

571. In Selaginella, the microsporangia are:

 
 
 
 

572. Funaria is :

 
 
 
 

573. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

575. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

577. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

580. In Cycas microsporangia are borne on:

 
 
 
 

581. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

583. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

585. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

587. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

589. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

591. Spirogyra represents the :

 
 
 
 

592. Embryophyta includes:

 
 
 
 

593. Cycas is:

 
 
 
 

594. Which is the correct statement about Selaginella?

 
 
 
 

595. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

597. Fruits are not found in :

 
 
 
 

598. Interferon is a:

 
 
 
 

599. Select the wrong statement:

 
 
 
 

600. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

602. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

605. Yeast is a source of:

 
 
 
 

606. Heterospory is the production of:

 
 
 
 

607. Redness of red sea is due to :

 
 
 
 

608. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

610. In Funaria, calyptra is derived from :

 
 
 
 

611. Which is not found in bacteria?

 
 
 
 

612. Generic name of mango is:

 
 
 
 

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

 
 
 
 

614. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

616. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. Centric discoid form of diatom is:

 
 
 
 

620. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

630. The largest known bacterium is:

 
 
 
 

631. What is special feature of fern archegonia?

 
 
 
 

632. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. What is the role of nitrifying bacteria?

 
 
 
 

637. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

640. The sporangiophores in Rhizopus are:

 
 
 
 

641. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. Yeast grows more rapidly in:

 
 
 
 

645. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

649. The teeth of peristome of Funaria are :

 
 
 
 

650. The term stele was given by:

 
 
 
 

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

 
 
 
 

652. Chief constituents of bordeaux mixture are :

 
 
 
 

653. Ectocarpus produces:

 
 
 
 

654. Enzymes are absent in:

 
 
 
 

655. Rhizopus and yeast are usually:

 
 
 
 

656. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

658. Which of the following is a monocot?

 
 
 
 

659. 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?

 
 
 
 

660. Roots are absent in :

 
 
 
 

661. Pteridophyta are also called:

 
 
 
 

662. Spermatophyta are characterized by producing:

 
 
 
 

663. Funaria is :

 
 
 
 

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

 
 
 
 

665. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

667. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

670. The first to isolate a plant virus was:

 
 
 
 

671. Ovary is absent in:

 
 
 
 

672. Cycas is similar to a mustard plant :

 
 
 
 

673. Cleavage polyembryony is found in :

 
 
 
 

674. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

676. What is streptomycin?

 
 
 
 

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

 
 
 
 

678. Which of the following lichens is harmful?

 
 
 
 

679. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

681. The source of litmus is :

 
 
 
 

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

 
 
 
 

683. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

684. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

686. The coralloid roots are :

 
 
 
 

687. Ethylene oxide is widely used to:

 
 
 
 

688. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

691. To which country Antony van Leeuwenhoek belong?

 
 
 
 

692. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

698. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

700. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

703. Heterotrichous habit means :

 
 
 
 

704. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

707. The leaf of Cycas shows:

 
 
 
 

708. Who discovered streptomycin?

 
 
 
 

709. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

711. Discovery of penicillin was based on:

 
 
 
 

712. The gametophyte of fern bears:

 
 
 
 

713. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

715. Synzoospore is produced in:

 
 
 
 

716. Which is not true for Escherichia coli?

 
 
 
 

717. E coli is a:

 
 
 
 

718. Most of the lichens are composed of :

 
 
 
 

719. Majority of lichens are :

 
 
 
 

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

 
 
 
 

721. Cryptogams include :

 
 
 
 

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

 
 
 
 

723. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

725. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. Photosynthetic bacteria have:

 
 
 
 

730. In angiosperms double fertilization represents:

 
 
 
 

731. Quarantine regulations are concerned with:

 
 
 
 

732. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

734. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

735. To which class Riccia belongs :

 
 
 
 

736. Reproduction in Cycas takes place by :

 
 
 
 

737. Ergot of rye is caused by:

 
 
 
 

738. Fertility of the soil is increased by:

 
 
 
 

739. In moss, sporogenous tissue arises from:

 
 
 
 

740. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

742. Which of the following is a parasitic algae?

 
 
 
 

743. Green plants are classified as:

 
 
 
 

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

 
 
 
 

745. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

748. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

750. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

753. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

755. Which of the following is sago palm?

 
 
 
 

756. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

760. Which fixes atmospheric nitrogen?

 
 
 
 

761. The ferns are usually found:

 
 
 
 

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

 
 
 
 

763. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

768. Botulinum toxin effects:

 
 
 
 

769. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

771. Clostridium can:

 
 
 
 

772. Special feature of pollen grains of Pinus is :

 
 
 
 

773. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

775. Which of the following have algal zone?

 
 
 
 

776. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

778. Vascular cryptogam is the term used for :

 
 
 
 

779. Cycas revoluta is widely grown as :

 
 
 
 

780. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

781. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. Standard size of a herbarium sheet is:

 
 
 
 

785. The ascus of yeast contains:

 
 
 
 

786. The tree fern is:

 
 
 
 

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

 
 
 
 

788. Leaf spot of groundnut is caused by :

 
 
 
 

789. The chloroplast in Ulothrix is :

 
 
 
 

790. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

792. Methanogens belong to:

 
 
 
 

793. What are plasmids?

 
 
 
 

794. All archaebacteria lack:

 
 
 
 

795. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

800. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

802. The archegonia in Selaginella develop on:

 
 
 
 

803.

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

 
 
 
 

805. LSD is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. Placenta in fern is:

 
 
 
 

809. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

811. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

813. Lichens show :

 
 
 
 

814. Liverworts are included in :

 
 
 
 

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

 
 
 
 

816. Streptomyces falls under:

 
 
 
 

817. The chief characteristic of bryophyta is that :

 
 
 
 

818. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

824. The group algae possesses representatives belonging to kingdom:

 
 
 
 

825. Polystelic condition is found in:

 
 
 
 

826. The most primitive vascular plants is:

 
 
 
 

827. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

830. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. Desired type of Cycas can be grown by:

 
 
 
 

834. Selaginella differs from Moss in having:

 
 
 
 

835. Anoxygenic photosynthesis occurs in:

 
 
 
 

836. Simple polyembryony is found in :

 
 
 
 

837. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

840. How a fern differs from a moss?

 
 
 
 

841. Germ theory of disease was proposed by:

 
 
 
 

842. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

844. Pinus gerardiana is :

 
 
 
 

845. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

847. Pinus microsporophyll bears:

 
 
 
 

848. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

850. Club moss is the common name of :

 
 
 
 

851. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

855. Water-net is the name of:

 
 
 
 

856. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

859. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

861. The order generally ends with:

 
 
 
 

862. The megasporangium of Selaginella is:

 
 
 
 

863. Halophiles are the bacteria that require for growth:

 
 
 
 

864. The two conjugating gametangia of Rhizopus are: