Quiz_Random

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

 
 
 
 

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

 
 
 
 

3. Kuru, a human disease is caused by:

 
 
 
 

4. Green plants are classified as :

 
 
 
 

5. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

9. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

11. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

13. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

15. Acellular slime mold is/are:

 
 
 
 

16. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

18. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

20. The ascus of yeast contains:

 
 
 
 

21. How a fern differs from a moss?

 
 
 
 

22. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

24. Woody climbers are known as :

 
 
 
 

25. Winged seeds are found in :

 
 
 
 

26. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Virion refers to:

 
 
 
 

31. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

33. Which is an edible fungus?

 
 
 
 

34. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

39. Bryophyta have a special character from other plants:

 
 
 
 

40. Genetic material of TMV is:

 
 
 
 

41. Ginkgo biloba is a:

 
 
 
 

42. Infective part of virus was discovered by:

 
 
 
 

43. The lichens growing on rocks are called :

 
 
 
 

44. Azolla growing in paddy fields helps in:

 
 
 
 

45. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. Black rust of wheat is caused by:

 
 
 
 

54. Meristele of fern is:

 
 
 
 

55. Ovules are not found enclosed in ovary in :

 
 
 
 

56. 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:

 
 
 
 

57. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. The term stele was given by:

 
 
 
 

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

 
 
 
 

62. Lichen show :

 
 
 
 

63. Typhoid in man is caused by:

 
 
 
 

64. Embryophyta includes :

 
 
 
 

65. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

67. Black rust of wheat is caused by:

 
 
 
 

68. In Gymnosperms endosperm is a:

 
 
 
 

69. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

71. Leaf spot of groundnut is caused by :

 
 
 
 

72. Select the correct statement: (NEET 2016)

 
 
 
 

73. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

74. The tree fern is:

 
 
 
 

75. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

77. Lichens are ecologically important because :

 
 
 
 

78. Downy mildew disease is caused by :

 
 
 
 

79. What is streptomycin?

 
 
 
 

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

 
 
 
 

81.

82. Which is a fungicide?

 
 
 
 

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

 
 
 
 

84. Cocci types of bacteria are:

 
 
 
 

85. The plants of Funaria grow :

 
 
 
 

86. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

87. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

93. Plasmids are:

 
 
 
 

94. Linnaeus is credited with introducing:

 
 
 
 

95. Ovules are not found enclosed in ovary of:

 
 
 
 

96. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

103. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

105. The male gametes of Pinus are :

 
 
 
 

106. In Funaria :

 
 
 
 

107. The megasporangium of Selaginella is:

 
 
 
 

108. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

110. In Cycas microsporangia are borne on:

 
 
 
 

111. How is moss different from fern?

 
 
 
 

112. Common phycobiont in a lichen is :

 
 
 
 

113. Most of the algae are :

 
 
 
 

114. Tautonyms are illegitimate in:

 
 
 
 

115. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

117. The alga, Spirogyra are found in :

 
 
 
 

118. Mostly type of zygospore in Ulothrix is:

 
 
 
 

119. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. 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:

 
 
 
 

123. Some biologists have used the term Mycetozoa for:

 
 
 
 

124. The zoospores of Ulothrix are :

 
 
 
 

125. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

132. The fungi that grow on wood are called:

 
 
 
 

133. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

135. The development of Selaginella embryo is:

 
 
 
 

136. Streptomycin is obtained from:

 
 
 
 

137. The disease apple scab is caused by:

 
 
 
 

138. The Rhizopus is:

 
 
 
 

139. The nucleus of bacteria is:

 
 
 
 

140. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

142. Who discovered heterothallism in fungi?

 
 
 
 

143. Protists which are diploid reproduce sexually by:

 
 
 
 

144. Pollination in Pinus is :

 
 
 
 

145. Which is a tautonym?

 
 
 
 

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

 
 
 
 

147. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

149. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

152. Bacteria which are spherical are called:

 
 
 
 

153. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

156. The largest alga is:

 
 
 
 

157. Which is absent from the xylem of Cycas?

 
 
 
 

158. Total parasites belong to:

 
 
 
 

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

 
 
 
 

160. The chromosomal number in:

 
 
 
 

161. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. Cycas is:

 
 
 
 

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

 
 
 
 

170. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

172. Which organisms are the oldest life forms?

 
 
 
 

173. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

177. LSD is:

 
 
 
 

178. Transfusion tissue is present in the leaflet of:

 
 
 
 

179. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

180. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

183. . Tapetum develops in:

 
 
 
 

184. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

186. Male gametophyte of Selaginella is found:

 
 
 
 

187. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

189. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

191. The flagella of Chlamydomonas are:

 
 
 
 

192. Fairy ring is the name given to:

 
 
 
 

193. Ovary is absent in :

 
 
 
 

194. Cycas revoluta is widely grown as :

 
 
 
 

195. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

197. 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:

 
 
 
 

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

 
 
 
 

199. Diphtheria is caused by:

 
 
 
 

200. Pinus microsporophyll bears:

 
 
 
 

201. An Hfr bacterium is one that contains:

 
 
 
 

202. The Rhizopus gametes are formed in:

 
 
 
 

203. Embryo formation is not known in :

 
 
 
 

204. Leprosy is caused by:

 
 
 
 

205. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

207. Photoautotrophic bacteria have:

 
 
 
 

208. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

212. Viroids have:

 
 
 
 

213. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

215. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

218. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. All protozoans possess:

 
 
 
 

226. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

231. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

233. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

235. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

237. Enzymes are absent in:

 
 
 
 

238. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

240. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

242. Fern prothallus is:

 
 
 
 

243. The most important property of yeast is:

 
 
 
 

244. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

246. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

254. Cyanophage is a virus that attacks:

 
 
 
 

255. Sometimes the bacterial cell is enclosed in:

 
 
 
 

256. In a diplontic life cycle:

 
 
 
 

257. Which of the following does not contain chlorophyll?

 
 
 
 

258. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. Bacteria differ from viruses in being sensitive to:

 
 
 
 

264. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

266. Lichens are pioneers of vegetation in a :

 
 
 
 

267. Ergot of rye is caused by:

 
 
 
 

268. Generic name of mango is:

 
 
 
 

269. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. In Cycas:

 
 
 
 

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

 
 
 
 

274. Some diseases caused by bacteria are:

 
 
 
 

275. Reproduction in Rhizopus is:

 
 
 
 

276. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

279. Which class of Protozoa includes all parasitic forms?

 
 
 
 

280. The fungi are usually:

 
 
 
 

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

 
 
 
 

282. Roots are absent in :

 
 
 
 

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

 
 
 
 

284. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

288. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

290. Bryophyta have been placed in cryptogams because:

 
 
 
 

291. The order generally ends with:

 
 
 
 

292. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

294. In Pteris, the archegonia are present:

 
 
 
 

295. Vascular cryptogam is the term used for :

 
 
 
 

296. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

300. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

302. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

304. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

307. The sori in Dryopteris are found on:

 
 
 
 

308. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

310. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

312. Club moss is the common name of :

 
 
 
 

313. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

316. Penicillin was discovered by:

 
 
 
 

317. Select the wrong statement:

 
 
 
 

318. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

320. The ferns are usually found:

 
 
 
 

321. Lichens reproduce by :

 
 
 
 

322. Detailed study of bacteriophage was made by:

 
 
 
 

323. The upper region of moss capsule is :

 
 
 
 

324. Pasteur is famous for his:

 
 
 
 

325. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

330. Red rot of sugarcane is caused by :

 
 
 
 

331. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

333. Mycoplasma was discovered by:

 
 
 
 

334. Which of the following lichens is harmful?

 
 
 
 

335. The archegonia in Selaginella develop on:

 
 
 
 

336. The root nodules of leguminous plants contain:

 
 
 
 

337. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

340. Citrus canker is caused by :

 
 
 
 

341. The two conjugating gametangia of Rhizopus are:

 
 
 
 

342. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

344. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

349. Little leaf disease of Brinjal is caused by:

 
 
 
 

350. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. 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:

 
 
 
 

356. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

358. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

360. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

362. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

366. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

368. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

369. The sporangiophores in Rhizopus are:

 
 
 
 

370. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

372. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

374. Bentham and Hooker placed gymnosperms:

 
 
 
 

375. Fern phloem lacks:

 
 
 
 

376. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

378. Lichens form the first community in

 
 
 
 

379. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

381. Photosynthetic bacteria have:

 
 
 
 

382. In moss, conducting tissue is made up of

 
 
 
 

383. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

386. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

388. Red rot of sugarcane is caused by :

 
 
 
 

389. Among the algae kelps are :

 
 
 
 

390. Centric discoid form of diatom is:

 
 
 
 

391. The roots of Cycas are :

 
 
 
 

392. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

395. What are plasmids?

 
 
 
 

396. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

398. Saccharomyces ludwigii ascus produces:

 
 
 
 

399. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

401. Oswald Tippo’s classification was based on :

 
 
 
 

402. Anoxygenic photosynthesis occurs in:

 
 
 
 

403. Early blight of potato is caused by:

 
 
 
 

404. The lambda phase is a:

 
 
 
 

405. In moss, calyptra is formed from:

 
 
 
 

406. 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?

 
 
 
 

407. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

409. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

411. The sexual reproductive organs in Rhizopus are:

 
 
 
 

412. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

415. 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:

 
 
 
 

416. Virus and bacteriophage are made-up of:

 
 
 
 

417. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

419. Which is a gametophytic tissue?

 
 
 
 

420. All algae have:

 
 
 
 

421. Which is not found in bacteria?

 
 
 
 

422. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

427. Yeast grows more rapidly in:

 
 
 
 

428. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

430. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

431. The young leaves of Cycas have :

 
 
 
 

432. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

436. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

437. Bacteria are placed under:

 
 
 
 

438. Which is the nuclear material in bacteria?

 
 
 
 

439. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

441. 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:

 
 
 
 

442. Pteridophytes are also known as :

 
 
 
 

443. Bacteria were first discovered by:

 
 
 
 

444. The coralloid roots are :

 
 
 
 

445. Longest known virus is:

 
 
 
 

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

 
 
 
 

447. All archaebacteria lack:

 
 
 
 

448. Majority of lichens are :

 
 
 
 

449. Seeds are characteristically found in :

 
 
 
 

450. Most primitive embryophytes are placed in:

 
 
 
 

451. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

452. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

454. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

456. Bacteriophages have been used as:

 
 
 
 

457. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

459. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. Bacteria are considered to be plants because they:

 
 
 
 

466. Heterospory is the production of:

 
 
 
 

467. Cryptogams include :

 
 
 
 

468. Which of the following have a prokaryotic cell?

 
 
 
 

469. The gametophyte produced by apospory is :

 
 
 
 

470. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

472. Male gametes in Dryopteris are:

 
 
 
 

473. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

475. Who among the following discovered virus?

 
 
 
 

476. Which of the following applies to Selaginella?

 
 
 
 

477. Which of the following is a monocot?

 
 
 
 

478. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

481. Bivalved siliceous shell or frustule occur in:

 
 
 
 

482. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

483. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

486. Metulae are found in:

 
 
 
 

487. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

490. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

493. 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:

 
 
 
 

494. Which of the following is true for viruses?

 
 
 
 

495. Mycoplasma are:

 
 
 
 

496. The orders generally have the uniform endings:

 
 
 
 

497. Select the wrong statement:

 
 
 
 

498. To which class Riccia belongs :

 
 
 
 

499. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

501. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

503. Placenta in fern is:

 
 
 
 

504. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507.

508. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

510. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

512. Most appropriate word for protozoans is:

 
 
 
 

513. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

517. Winged pollen grains are found in :

 
 
 
 

518. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

520. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

522. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

523. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

525. In tracheophyta:

 
 
 
 

526. Cell walls of Gram-positive bacteria contain:

 
 
 
 

527. In dinoflagellates, the two flagella are:

 
 
 
 

528. Asexual reproductive body of Volvox is called:

 
 
 
 

529. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

535. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

537. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

540. The fungi are mostly:

 
 
 
 

541. Small epidermal swellings due to infection are called :

 
 
 
 

542. Pollination in Cycas takes place by :

 
 
 
 

543. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

545. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

547. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

550. Cycas is similar to a mustard plant :

 
 
 
 

551. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

553. Psilotum is:

 
 
 
 

554. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

556. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

558. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

561. Which of the following is a heterosporous pteridophyte?

 
 
 
 

562. Liverworts are included in :

 
 
 
 

563. Funaria is :

 
 
 
 

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

 
 
 
 

565. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

567. Fertility of the soil is increased by:

 
 
 
 

568. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

570. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

572. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

575. Ergot is obtained from :

 
 
 
 

576. The tallest moss in the world is :

 
 
 
 

577. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

581. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

583. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

586. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

588. In Selaginella, the microsporangia are:

 
 
 
 

589. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

592. Most primitive kind of flower is represented by:

 
 
 
 

593. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

594. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

596.

597. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

599. To which country Antony van Leeuwenhoek belong?

 
 
 
 

600. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

602. Which part of Riccia bears nurse cells?

 
 
 
 

603. The gametophyte of fern is as:

 
 
 
 

604. Which of the following is a parasitic algae?

 
 
 
 

605. In a bacteriophage, DNA is present in:

 
 
 
 

606. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

608. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

612. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

614. Facultative parasite is:

 
 
 
 

615. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

617. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

619. The leafy fern plant represents the:

 
 
 
 

620. Sexual reproduction of lichen is due to :

 
 
 
 

621. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

624. The antibiotic is obtained from:

 
 
 
 

625. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

627. Triple antigen injection or vaccine are for:

 
 
 
 

628. The smallest unit of classification is:

 
 
 
 

629. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

631. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. Interferon is a:

 
 
 
 

635.

 

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

 
 
 
 

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

 
 
 
 

638. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

645. The gametophyte of moss has distinct phases :

 
 
 
 

646. Which group of algae have an incipient nucleus?

 
 
 
 

647. Discovery of penicillin was based on:

 
 
 
 

648. The vascular bundles of Cycas stem are :

 
 
 
 

649. The fungi used as food are:

 
 
 
 

650. The sporangia of Selaginella are attached:

 
 
 
 

651. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

653. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

656. Diploxylic vascular bundles are found in:

 
 
 
 

657. Isomorphic type alternation of generation is found in:

 
 
 
 

658. Smallpox is caused by:

 
 
 
 

659. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

661. In moss, sporophyte is formed on:

 
 
 
 

662. Quarantine regulations are concerned with:

 
 
 
 

663. The spur of Pinus roxburghii has :

 
 
 
 

664. Germination of the seed of Pinus is :

 
 
 
 

665. Cellular slime mold is:

 
 
 
 

666. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

668. What is special feature of fern archegonia?

 
 
 
 

669. Cycas is :

 
 
 
 

670. Reserve food in Euglena is:

 
 
 
 

671. Saccharomyces is used in:

 
 
 
 

672. Reproduction in Cycas takes place by :

 
 
 
 

673. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

676. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

678. The DNA of E coli is:

 
 
 
 

679. Viruses are considered to be:

 
 
 
 

680. Mixed cropping helps :

 
 
 
 

681. Cycas plant in appearance resembles :

 
 
 
 

682. Rhizoids of Riccia are :

 
 
 
 

683. Amoeba is a member of the phylum:

 
 
 
 

684. Rhizopus and yeast are usually:

 
 
 
 

685. Milk is converted to curd by:

 
 
 
 

686. Penicillin is obtained from:

 
 
 
 

687. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

689. Methanogens belong to:

 
 
 
 

690. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

692. Which of the following statement is correct?

 
 
 
 

693. The fern plant is:

 
 
 
 

694. First animal pathogenic virus was discovered by:

 
 
 
 

695. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

698. Spermatophyta are characterized by producing:

 
 
 
 

699. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

701. Acetobacter is useful in:

 
 
 
 

702. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

704. 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?

 
 
 
 

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

 
 
 
 

706. Fruiting body of lichens is :

 
 
 
 

707. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

710. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

713. Endemic plants are characterised by their:

 
 
 
 

714. Special feature of pollen grains of Pinus is :

 
 
 
 

715. Citrus canker is caused by:

 
 
 
 

716. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

720. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

722. Botulinum toxin effects:

 
 
 
 

723. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

728. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

730. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

733. Zoogametes are not found in:

 
 
 
 

734. True sexuality is not found in:

 
 
 
 

735. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

737. Redness of red sea is due to :

 
 
 
 

738. Vascular tissue is found in :

 
 
 
 

739. Which is the correct statement about Selaginella?

 
 
 
 

740. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

742. Pinus gerardiana is :

 
 
 
 

743. The leaves of Funaria are :

 
 
 
 

744. Who named prion?

 
 
 
 

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

 
 
 
 

746. Nannandria are:

 
 
 
 

747. Pinus is:

 
 
 
 

748. Who discovered streptomycin?

 
 
 
 

749. E coli is a:

 
 
 
 

750. Soil fertility is lost by the activities of:

 
 
 
 

751. What is the role of nitrifying bacteria?

 
 
 
 

752. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

754. Yeast is a source of:

 
 
 
 

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

 
 
 
 

756. The leaf of Cycas shows:

 
 
 
 

757. Water-net is the name of:

 
 
 
 

758. Nitrifying bacteria play an important role by converting:

 
 
 
 

759. Broad spectrum antibiotic is, which:

 
 
 
 

760. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

763. Most resistant spore in bacteria is:

 
 
 
 

764. In binomial system most of the words are:

 
 
 
 

765. Ectocarpus produces:

 
 
 
 

766. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. Lichens reproduce by :

 
 
 
 

770. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

774. Bacteria growing on synthetic medium are called:

 
 
 
 

775. Halophiles are the bacteria that require for growth:

 
 
 
 

776. The chief characteristic of bryophyta is that :

 
 
 
 

777. The seedless plants which possess vascular tissues are:

 
 
 
 

778. Botulism is a:

 
 
 
 

779. Cleavage polyembryony is found in :

 
 
 
 

780. Viruses have:

 
 
 
 

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

 
 
 
 

782. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

784. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

786. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

788. In Cycas the fertilization is:

 
 
 
 

789. Rhizopus belongs to:

 
 
 
 

790. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

795. In moss, sporogenous tissue arises from:

 
 
 
 

796. Spirogyra represents the :

 
 
 
 

797. The teeth of peristome of Funaria are :

 
 
 
 

798. The largest known bacterium is:

 
 
 
 

799. Antibiotic has been extracted from :

 
 
 
 

800. Pythium debaryanum is the causative agent of:

 
 
 
 

801. The gametophyte of fern bears:

 
 
 
 

802. 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?

 
 
 
 

803. The photosynthetic protists are:

 
 
 
 

804. Seeds are characteristically found in:

 
 
 
 

805. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

809. Ethylene oxide is widely used to:

 
 
 
 

810. Pseudomycelium is found in:

 
 
 
 

811. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

814. Streptomyces falls under:

 
 
 
 

815. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

817. The megaspore of Selaginella on germination produces:

 
 
 
 

818. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

825. Chief constituents of bordeaux mixture are :

 
 
 
 

826. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

828. Saccharomyces is well known for:

 
 
 
 

829. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

831. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

835. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. Heterospory and ligulate leaves are a feature of:

 
 
 
 

844. Funaria is :

 
 
 
 

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

 
 
 
 

846. Heterocysts are found in :

 
 
 
 

847. Lichens show :

 
 
 
 

848. Water-borne bacterial diseases are:

 
 
 
 

849. Oswald Tippo’s classification is:

 
 
 
 

850. Ovary is absent in:

 
 
 
 

851. Which of the following statements is not correct?

 
 
 
 

852. Which of the following are absent in Mycoplasma?

 
 
 
 

853. What is a vector?

 
 
 
 

854. Pasteurized milk is:

 
 
 
 

855. Enteric bacteria are those bacteria that live:

 
 
 
 

856. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

859. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. Which condition is found in Cycas?

 
 
 
 

864. The sporophyte of Riccia is represented by :