Quiz_Random

1. Embryophyta includes :

 
 
 
 

2. Winged pollen grains are found in :

 
 
 
 

3. Which is a tautonym?

 
 
 
 

4. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

6. The roots of Cycas are :

 
 
 
 

7. Azolla and Salvinia both are:

 
 
 
 

8. Mycoplasma was discovered by:

 
 
 
 

9. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Red rot of sugarcane is caused by :

 
 
 
 

13. In dinoflagellates, the two flagella are:

 
 
 
 

14. Which is an edible fungus?

 
 
 
 

15. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

18. The group algae possesses representatives belonging to kingdom:

 
 
 
 

19. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

24.

25. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

27. In Herpes virus DNA is:

 
 
 
 

28. Metulae are found in:

 
 
 
 

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

 
 
 
 

30. Total parasites belong to:

 
 
 
 

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

 
 
 
 

32. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

34. Lichens are indicators of :

 
 
 
 

35. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. Endemic plants are characterised by their:

 
 
 
 

39. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

41. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Which of the following are included in Tracheophyta?

 
 
 
 

45. Cyanophage is a virus that attacks:

 
 
 
 

46. Cap cells are found in the filament of:

 
 
 
 

47. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Pollination drop is:

 
 
 
 

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

 
 
 
 

52. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

54. Male gametophyte of Selaginella is found:

 
 
 
 

55. Which is a fungicide?

 
 
 
 

56. The zygospore in Rhizopus on germination forms:

 
 
 
 

57. The disease apple scab is caused by:

 
 
 
 

58. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. What is streptomycin?

 
 
 
 

62. The antherozoids of Funaria are :

 
 
 
 

63. Viruses are considered to be:

 
 
 
 

64. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Pollination in Cycas takes place by :

 
 
 
 

68. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. Early blight of potato is caused by:

 
 
 
 

74. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Bacteria differ from viruses in being sensitive to:

 
 
 
 

80. The young leaves of Cycas have :

 
 
 
 

81. Seeds are characteristically found in :

 
 
 
 

82. Oswald Tippo’s classification is:

 
 
 
 

83. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. The rhizoids of Funaria are :

 
 
 
 

87. The prothallus of fern represents the plant:

 
 
 
 

88. The term stele was given by:

 
 
 
 

89. Methanogens belong to:

 
 
 
 

90. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

92. The order generally ends with:

 
 
 
 

93. Water-net is the name of:

 
 
 
 

94. 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?

 
 
 
 

95. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

97. The nucleus of bacteria is:

 
 
 
 

98. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

103. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

106. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

108. Lichens show :

 
 
 
 

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

 
 
 
 

110. Which is not found in bacteria?

 
 
 
 

111. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

113. The central part of Funaria axis is :

 
 
 
 

114. Fern prothallus produces:

 
 
 
 

115. Sporophyte of fern is:

 
 
 
 

116. The role of meiosis is for:

 
 
 
 

117. Isomorphic type alternation of generation is found in:

 
 
 
 

118.

 

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

 
 
 
 

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

 
 
 
 

121. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

123. The sporophyte of Riccia is represented by :

 
 
 
 

124. Pythium debaryanum is the causative agent of:

 
 
 
 

125. In Gymnosperms endosperm is a:

 
 
 
 

126. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

128. Which of the following are included in Tracheophyta?

 
 
 
 

129. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

132. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

134. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. Black rust of wheat is caused by:

 
 
 
 

139. Spores of which plants have chloroplast:

 
 
 
 

140. Yeast belongs to class:

 
 
 
 

141. Photosynthetic protists belong to:

 
 
 
 

142. Which of the following have algal zone?

 
 
 
 

143. Kuru, a human disease is caused by:

 
 
 
 

144. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

145. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

147. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

149. Fairy ring is the name given to:

 
 
 
 

150. Maximum diversity of life forms occurs in :

 
 
 
 

151. Germ theory of disease was proposed by:

 
 
 
 

152. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

154. Citrus canker is caused by :

 
 
 
 

155. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

156. Lichens form the first community in

 
 
 
 

157. What are plasmids?

 
 
 
 

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

 
 
 
 

159. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

160. Meiosis in Ulothrix takes place:

 
 
 
 

161. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

164. Triple antigen injection or vaccine are for:

 
 
 
 

165. Redness of red sea is due to :

 
 
 
 

166. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

170. Ulothrix produces :

 
 
 
 

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

 
 
 
 

172. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

174. Halophiles are the bacteria that require for growth:

 
 
 
 

175. Bryophyta have been placed in cryptogams because:

 
 
 
 

176. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

178. Why is Cycas called a living fossil?

 
 
 
 

179. Vascular cryptogam is the term used for :

 
 
 
 

180. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

186. Cycas is:

 
 
 
 

187. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

189. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

194. Bentham and Hooker placed gymnosperms:

 
 
 
 

195. Cleavage polyembryony is found in :

 
 
 
 

196. Cell walls of Gram-positive bacteria contain:

 
 
 
 

197. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

199. Spirogyra differs from moss protonema in having :

 
 
 
 

200. Gram stain is used to:

 
 
 
 

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

 
 
 
 

202. Bacteria which are spherical are called:

 
 
 
 

203. Viruses have:

 
 
 
 

204. Nitrogen-fixing bacteria may be located:

 
 
 
 

205. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

206. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

209. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

212. Club moss is the common name of :

 
 
 
 

213. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

215. Red rot of sugarcane is caused by :

 
 
 
 

216. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

218. The spermatozoids of Cycas are :

 
 
 
 

219. Some biologists have used the term Mycetozoa for:

 
 
 
 

220. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

222. Fruits are not found in Cycas because:

 
 
 
 

223. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

225. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

227. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

230. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

233. Funaria is a Bryophyta because :

 
 
 
 

234. Etiology includes the study of :

 
 
 
 

235. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

236. Longest known virus is:

 
 
 
 

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

 
 
 
 

238. A gill of Agaricus:

 
 
 
 

239. The chloroplast in Ulothrix is :

 
 
 
 

240. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

242. TMV was isolated in crystalline form by:

 
 
 
 

243. The sexual reproductive organs in Rhizopus are:

 
 
 
 

244. 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:

 
 
 
 

245. Where does meiosis occur in yeast?

 
 
 
 

246. Rice, pea, potato are :

 
 
 
 

247. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

248. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

250. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

253. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

255. Majority of lichens are :

 
 
 
 

256. Bacteria were first discovered by:

 
 
 
 

257. Psilotum is:

 
 
 
 

258. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

261. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

264. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

266. Usually, bacteria reproduce by:

 
 
 
 

267. Wine turns sour because of:

 
 
 
 

268. Facultative saprophyte is:

 
 
 
 

269. Which is an exception to cell theory?

 
 
 
 

270. Bacteria are placed under:

 
 
 
 

271. Seeds are characteristically found in:

 
 
 
 

272. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

277. Liverworts are included in :

 
 
 
 

278. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

279. Fern plants are:

 
 
 
 

280. Male gametes in Dryopteris are:

 
 
 
 

281. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

283. Smut of maize is caused by :

 
 
 
 

284. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

286. Polystelic condition is found in:

 
 
 
 

287. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

289. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

292. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

294. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

296. Penicillin is obtained from:

 
 
 
 

297. Chief constituents of bordeaux mixture are :

 
 
 
 

298. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

300. The source of litmus is :

 
 
 
 

301. Genetic material of TMV is:

 
 
 
 

302. Cycas is :

 
 
 
 

303. Some bacteria cannot be killed easily because of:

 
 
 
 

304. Lichens reproduce by :

 
 
 
 

305. E coli is a:

 
 
 
 

306.

307. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

309. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

313. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

316. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

318. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

320. All protozoans possess:

 
 
 
 

321. Most primitive embryophytes are placed in :

 
 
 
 

322. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

323. The fungi are usually:

 
 
 
 

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

 
 
 
 

325. Which of the following statement is correct?

 
 
 
 

326. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

330. Iodine is obtained from :

 
 
 
 

331. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

334. Quarantine regulations are concerned with:

 
 
 
 

335. Ovules are not found enclosed in ovary in :

 
 
 
 

336. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

338. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

341. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

343. Most of the lichens are composed of :

 
 
 
 

344. The Rhizopus is:

 
 
 
 

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

 
 
 
 

346. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

348. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

350. The root nodules of leguminous plants contain:

 
 
 
 

351. Fern prothallus is:

 
 
 
 

352. Which of the following is true for viruses?

 
 
 
 

353. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

355. Ovary is absent in :

 
 
 
 

356. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

358. Which of the following is sago palm?

 
 
 
 

359. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

362. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

367. The sporangium of fern contains nearly:

 
 
 
 

368. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

370. Funaria are commonly found :

 
 
 
 

371. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

373. Chemosynthetic bacteria are:

 
 
 
 

374. The two conjugating gametangia of Rhizopus are:

 
 
 
 

375. Siphonogamy is found in:

 
 
 
 

376. The gametophyte of moss has distinct phases :

 
 
 
 

377. In moss, conducting tissue is made up of

 
 
 
 

378. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

381. The ascus of yeast contains:

 
 
 
 

382. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

383. Which is absent from the xylem of Cycas?

 
 
 
 

384. Ovary is absent in:

 
 
 
 

385. The development of Selaginella embryo is:

 
 
 
 

386. 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?

 
 
 
 

387. Viruses are commonly transmitted in plants through:

 
 
 
 

388. The gametophyte of fern bears:

 
 
 
 

389. Gymnosperms could also be called as:

 
 
 
 

390. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

394. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

396. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

398. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

400. Yeast grows more rapidly in:

 
 
 
 

401. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

403. Who discovered streptomycin?

 
 
 
 

404. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. Bacteria are found everywhere, except:

 
 
 
 

408. The sporophyte of Riccia is :

 
 
 
 

409. Water-borne bacterial diseases are:

 
 
 
 

410. Who among the following discovered virus?

 
 
 
 

411. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

413. Mycoplasma are:

 
 
 
 

414. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

418. Pteridophyta are also called:

 
 
 
 

419. Which fixes atmospheric nitrogen?

 
 
 
 

420. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. 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?

 
 
 
 

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

 
 
 
 

425. Winged seeds are found in :

 
 
 
 

426. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

429. Tautonyms are illegitimate in:

 
 
 
 

430. How a fern differs from a moss?

 
 
 
 

431. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

435. 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:

 
 
 
 

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

 
 
 
 

437. Some diseases caused by bacteria are:

 
 
 
 

438. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

440. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

442. Ovules are not found enclosed in ovary of:

 
 
 
 

443. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

445. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

448. The archegonia of Selaginella are differentiated by:

 
 
 
 

449. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

451. Interferon is a:

 
 
 
 

452. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

454. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

457. Simple polyembryony is found in :

 
 
 
 

458. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

460. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

462. Pinus gerardiana is :

 
 
 
 

463. Aflatoxin is produced as a product in :

 
 
 
 

464. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

466. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

470. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

472. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

474. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

477. Mycoplasma is different from bacteria due to:

 
 
 
 

478. Which one of the following statement is wrong?

 
 
 
 

479. Indusium in Dryopteris is:

 
 
 
 

480. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

482. Clostridium can:

 
 
 
 

483. To which class Riccia belongs :

 
 
 
 

484. Centric discoid form of diatom is:

 
 
 
 

485. Ginkgo biloba is a:

 
 
 
 

486. Select the wrong statement:

 
 
 
 

487. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

490. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

495. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

499.

500. Rhizophore of Selaginella is:

 
 
 
 

501. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

503. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. The chloroplast of Chlamydomonas are:

 
 
 
 

507. To which country Antony van Leeuwenhoek belong?

 
 
 
 

508. Which bacteria convert nitrate into nitrogen?

 
 
 
 

509. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

512. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

514. Selaginella differs from Moss in having:

 
 
 
 

515. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

520. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

521. The chief characteristic of class Ascomycetes is:

 
 
 
 

522. Cellular slime mold is:

 
 
 
 

523. Enzymes are absent in:

 
 
 
 

524. Typhoid in man is caused by:

 
 
 
 

525. Each chloroplast in Spirogyra bears :

 
 
 
 

526. The lichens growing on rocks are called :

 
 
 
 

527. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

530. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

532. What is absent in Deuteromycetes?

 
 
 
 

533. Fern phloem lacks:

 
 
 
 

534. 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?

 
 
 
 

535. Anoxygenic photosynthesis occurs in:

 
 
 
 

536. In angiosperms double fertilization represents:

 
 
 
 

537. In Cycas:

 
 
 
 

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

 
 
 
 

539. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

541. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

543. Transfusion tissue is present in the leaflet of:

 
 
 
 

544. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

546. Chemosynthetic bacteria are:

 
 
 
 

547. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

549. What are Cyanobacteria?

 
 
 
 

550. The tree fern is:

 
 
 
 

551. In Cycas microsporangia are borne on:

 
 
 
 

552. Agar-agar is obtained from:

 
 
 
 

553. The largest alga is:

 
 
 
 

554. Green plants are classified as :

 
 
 
 

555. Photoautotrophic bacteria have:

 
 
 
 

556. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

558. Most common type of conjugation in Spirogyra is :

 
 
 
 

559. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

561. Pythium debaryanum is the causative agent of:

 
 
 
 

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. The disease symptom necrosis refers to :

 
 
 
 

564. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. Which of the following is a monocot?

 
 
 
 

568. The chromosomal number in:

 
 
 
 

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

 
 
 
 

570. The tallest moss in the world is :

 
 
 
 

571. The development of sporangium in Selaginella is:

 
 
 
 

572. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

575. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

579. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

581. Linnaeus is credited with introducing:

 
 
 
 

582. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

584. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

585. Embryophyta includes:

 
 
 
 

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

 
 
 
 

587. Among the algae kelps are :

 
 
 
 

588. 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:

 
 
 
 

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

 
 
 
 

590. Desired type of Cycas can be grown by:

 
 
 
 

591. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

598. In tracheophyta:

 
 
 
 

599. The fungi used as food are:

 
 
 
 

600. An Hfr bacterium is one that contains:

 
 
 
 

601. Absorptive nutrition is:

 
 
 
 

602. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

605. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

607. LSD is:

 
 
 
 

608. Ergot is obtained from :

 
 
 
 

609. Which one of the following is a monocot?

 
 
 
 

610. The smallest unit of classification is:

 
 
 
 

611. Gametophyte is the main plant body in :

 
 
 
 

612. Pasteur is famous for his:

 
 
 
 

613. Virion refers to:

 
 
 
 

614. Which is not true for Escherichia coli?

 
 
 
 

615. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. Facultative parasite is:

 
 
 
 

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

 
 
 
 

620. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

623. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

625. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

628. Fruits are not found in :

 
 
 
 

629. The Rhizopus gametes are formed in:

 
 
 
 

630. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

632. Cycas is different from mango in :

 
 
 
 

633. Funaria is :

 
 
 
 

634. In Funaria :

 
 
 
 

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

 
 
 
 

636. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

639. Most primitive embryophytes are placed in:

 
 
 
 

640. In moss, sporophyte is formed on:

 
 
 
 

641. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

647. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

649. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

651. Azolla growing in paddy fields helps in:

 
 
 
 

652. The seedless plants which possess vascular tissues are:

 
 
 
 

653. Plasmids are:

 
 
 
 

654. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. Zoogametes are not found in:

 
 
 
 

659. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

662. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

673. The fungi are mostly:

 
 
 
 

674. Nannandria are:

 
 
 
 

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

 
 
 
 

676. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

678. Who discovered cyanophages?

 
 
 
 

679. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

681. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

683. Parmelia belongs to :

 
 
 
 

684. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

687. Cyathia is characterized by:

 
 
 
 

688. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

690. Pinus is:

 
 
 
 

691. Red rot of sugarcane is caused by:

 
 
 
 

692. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

694. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

697. Sometimes the bacterial cell is enclosed in:

 
 
 
 

698. The megasporangium of Selaginella is:

 
 
 
 

699. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

701. The zoospores of Ulothrix are :

 
 
 
 

702. Ectocarpus produces:

 
 
 
 

703. Which have the largest antherozoid?

 
 
 
 

704. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

708. Saccharomyces is used in:

 
 
 
 

709. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

711. Streptomyces falls under:

 
 
 
 

712. Which of the following is a parasitic algae?

 
 
 
 

713. John Hutchinson divided dicots into two divisions:

 
 
 
 

714. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

715. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

717. The leaves of Funaria are :

 
 
 
 

718. Which is a gametophytic tissue?

 
 
 
 

719. The ferns are usually found:

 
 
 
 

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

 
 
 
 

721. Acellular slime mold is/are:

 
 
 
 

722. Pneumonia is caused by:

 
 
 
 

723. Sporophyte of Funaria is :

 
 
 
 

724. Lichen show :

 
 
 
 

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

 
 
 
 

726. Mycoplasma contains:

 
 
 
 

727. Black rust of wheat is caused by:

 
 
 
 

728. Fertility of the soil is increased by:

 
 
 
 

729. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

731. Antibiotic has been extracted from :

 
 
 
 

732. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

735. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. Select the wrong statement:

 
 
 
 

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

 
 
 
 

740. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

743. Sleeping sickness disease in man is caused by:

 
 
 
 

744. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

746. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

748. Which causes red tide?

 
 
 
 

749. Helotism word is used for the symbiosis between :

 
 
 
 

750. Roots are absent in :

 
 
 
 

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

 
 
 
 

752. Most of the algae are :

 
 
 
 

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

 
 
 
 

754. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

756. Rhizopus belongs to:

 
 
 
 

757. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

759. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

763. The antibiotic is obtained from:

 
 
 
 

764. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

766. Most primitive group of vascular plants are:

 
 
 
 

767. Protists which are diploid reproduce sexually by:

 
 
 
 

768. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

774. The photosynthetic protists are:

 
 
 
 

775. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

778. Disease resistant plant varieties can be produced by :

 
 
 
 

779. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

783. Late blight of potato is caused by:

 
 
 
 

784. Iodine is obtained from:

 
 
 
 

785. Placenta in fern is:

 
 
 
 

786. Heterocysts are found in :

 
 
 
 

787. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

789. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

791. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. How is moss different from fern?

 
 
 
 

798. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

803. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

805. Green plants are classified as:

 
 
 
 

806. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

808. The lambda phase is a:

 
 
 
 

809. Broad spectrum antibiotic is, which:

 
 
 
 

810. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

814. Fruits are not found in:

 
 
 
 

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

 
 
 
 

816. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

818. First animal pathogenic virus was discovered by:

 
 
 
 

819. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

821. Reproduction in Rhizopus is:

 
 
 
 

822. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

824. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

828. Mixed cropping helps :

 
 
 
 

829. Lichens are the indicator of pollution :

 
 
 
 

830. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

832. In moss, peristomial teeth are:

 
 
 
 

833. Vascular tissue is found in :

 
 
 
 

834. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

836. In moss, reduction division occurs in :

 
 
 
 

837. The flagella of Chlamydomonas are:

 
 
 
 

838. The stele of Dryopteris is a:

 
 
 
 

839. What is a vector?

 
 
 
 

840. Which part of Riccia bears nurse cells?

 
 
 
 

841. The sporangia of Selaginella are attached:

 
 
 
 

842. Which group of algae have an incipient nucleus?

 
 
 
 

843. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

844. 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:

 
 
 
 

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

 
 
 
 

846. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

848. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

850. Funaria can be differentiated from Cycas :

 
 
 
 

851. Number of capsomeres forming capsid of TMV is:

 
 
 
 

852. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

854. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

859. Enteric bacteria are those bacteria that live:

 
 
 
 

860. The archegonia in Selaginella develop on:

 
 
 
 

861. The upper region of moss capsule is :

 
 
 
 

862. Rhizopus and yeast are usually:

 
 
 
 

863. NBG of Lucknow is now named as:

 
 
 
 

864. Ergot of rye is caused by: