Quiz_Random

1. Embryophyta includes :

 
 
 
 

2. 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:

 
 
 
 

3. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

5. The stele of Dryopteris is a:

 
 
 
 

6. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

7. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Most of the lichens are composed of :

 
 
 
 

12. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

14. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

16. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

18. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

20. Aflatoxin is produced as a product in :

 
 
 
 

21. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. Iodine is obtained from :

 
 
 
 

26. Roots are absent in :

 
 
 
 

27. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

32. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

34. Meristele of fern is:

 
 
 
 

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

 
 
 
 

36. Vascular cryptogams is the term used for:

 
 
 
 

37. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

39. Which is not true for Escherichia coli?

 
 
 
 

40. Saccharomyces is used in:

 
 
 
 

41. Methanogens belong to:

 
 
 
 

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

 
 
 
 

43. Heterotrichous habit means :

 
 
 
 

44. Which is absent from the xylem of Cycas?

 
 
 
 

45. In moss, calyptra is formed from:

 
 
 
 

46. Usually, bacteria reproduce by:

 
 
 
 

47. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

49. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Bacteria which are spherical are called:

 
 
 
 

53. Which is a tautonym?

 
 
 
 

54. The spermatozoids of Cycas are :

 
 
 
 

55. Fern phloem lacks:

 
 
 
 

56. The coralloid roots are :

 
 
 
 

57. Which of the following applies to Selaginella?

 
 
 
 

58. Lichens reproduce by :

 
 
 
 

59. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

62. The group algae possesses representatives belonging to kingdom:

 
 
 
 

63. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

68. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

76. 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:

 
 
 
 

77. Male gametes in Dryopteris are:

 
 
 
 

78. Who among the following discovered virus?

 
 
 
 

79. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Funaria is :

 
 
 
 

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

 
 
 
 

84. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

86. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

92. Which is a fungicide?

 
 
 
 

93. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

95. Lichens are indicators of :

 
 
 
 

96. Bentham and Hooker placed gymnosperms:

 
 
 
 

97. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

99. Bacteria are found everywhere, except:

 
 
 
 

100. The nucleus of bacteria is:

 
 
 
 

101. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

103. Which lichen is called Reindeer moss?

 
 
 
 

104. Mycoplasma is different from bacteria due to:

 
 
 
 

105. Bacteria are considered to be plants because they:

 
 
 
 

106. Which of the following have a prokaryotic cell?

 
 
 
 

107. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

108. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

111. Liverworts are included in :

 
 
 
 

112. Fern prothallus is:

 
 
 
 

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

 
 
 
 

114. Streptomyces falls under:

 
 
 
 

115. Rice, pea, potato are :

 
 
 
 

116. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

117. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

118. Yeast belongs to class:

 
 
 
 

119. One of the distinctive feature of Spirogyra is :

 
 
 
 

120. Which is the correct statement about Selaginella?

 
 
 
 

121. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

123. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

126. Soil fertility is lost by the activities of:

 
 
 
 

127. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

129. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

131. Majority of lichens are :

 
 
 
 

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

 
 
 
 

133. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

137. 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?

 
 
 
 

138. Some biologists have used the term Mycetozoa for:

 
 
 
 

139. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

141. Rhizopus and yeast are usually:

 
 
 
 

142. The sporangium of fern contains nearly:

 
 
 
 

143. Placenta in fern is:

 
 
 
 

144. The gametophyte of fern is as:

 
 
 
 

145. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

147. Streptomycin is obtained from:

 
 
 
 

148. Fairy ring is the name given to:

 
 
 
 

149. Simple polyembryony is found in :

 
 
 
 

150. The fungi are usually:

 
 
 
 

151. Cleavage polyembryony is found in :

 
 
 
 

152. Which of the following have algal zone?

 
 
 
 

153. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

155. Select the wrong statement:

 
 
 
 

156. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

158. Triple antigen injection or vaccine are for:

 
 
 
 

159. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

161. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

164. 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:

 
 
 
 

165. The order generally ends with:

 
 
 
 

166. Yeast is a source of:

 
 
 
 

167. Lichens reproduce by :

 
 
 
 

168. Vascular cryptogam is the term used for :

 
 
 
 

169. Botulinum toxin effects:

 
 
 
 

170. Which is not found in bacteria?

 
 
 
 

171. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

173. Water-borne bacterial diseases are:

 
 
 
 

174. The microsporophylls on the cone of Cycas are :

 
 
 
 

175. Fern plants are:

 
 
 
 

176. How is moss different from fern?

 
 
 
 

177. In Funaria, calyptra is derived from :

 
 
 
 

178. Interferon is a:

 
 
 
 

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

 
 
 
 

180. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. Discovery of penicillin was based on:

 
 
 
 

185. 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:

 
 
 
 

186. Which of the following shows heterotrichous habit?

 
 
 
 

187. Generic name of mango is:

 
 
 
 

188. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

190. Which organisms are the oldest life forms?

 
 
 
 

191. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

193. Bacteria growing on synthetic medium are called:

 
 
 
 

194. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

196. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

198. The genetic material of poxvirus is:

 
 
 
 

199. In dinoflagellates, the two flagella are:

 
 
 
 

200. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. Sexual reproduction of lichen is due to :

 
 
 
 

205. Bivalved siliceous shell or frustule occur in:

 
 
 
 

206. The prothallus of fern is:

 
 
 
 

207. Club moss and Peat moss belong to:

 
 
 
 

208. Most appropriate word for protozoans is:

 
 
 
 

209. In moss, conducting tissue is made up of

 
 
 
 

210. Cycas is :

 
 
 
 

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

 
 
 
 

212. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

214. In moss, stomata are found:

 
 
 
 

215. Which one of the following statement is wrong?

 
 
 
 

216. In Cycas microsporangia are borne on:

 
 
 
 

217. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

219. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

220. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

221. Leaf spot of groundnut is caused by :

 
 
 
 

222. What is special feature of fern archegonia?

 
 
 
 

223. Which of the following are absent in Mycoplasma?

 
 
 
 

224. The development of Selaginella embryo is:

 
 
 
 

225. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

227. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

228. Embryophyta includes:

 
 
 
 

229. 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:

 
 
 
 

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

 
 
 
 

231. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

238. Saccharomyces ludwigii ascus produces:

 
 
 
 

239. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

241. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

243. Which of the following is true for viruses?

 
 
 
 

244. Infective part of virus was discovered by:

 
 
 
 

245. Black rust of wheat is caused by:

 
 
 
 

246. In moss, sporogenous tissue arises from:

 
 
 
 

247. Ethylene oxide is widely used to:

 
 
 
 

248. The most important property of yeast is:

 
 
 
 

249. The zoospores of Ulothrix are :

 
 
 
 

250. Bacteria are placed under:

 
 
 
 

251. The antibiotic is obtained from:

 
 
 
 

252. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

254. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

255. The source of litmus is :

 
 
 
 

256. Pinus is:

 
 
 
 

257. Ovules are not found enclosed in ovary in :

 
 
 
 

258. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

261. Which causes red tide?

 
 
 
 

262. Cap cells are found in the filament of:

 
 
 
 

263. Which is an exception to cell theory?

 
 
 
 

264. In moss, sporophyte is formed on:

 
 
 
 

265. The sexual reproductive organs in Rhizopus are:

 
 
 
 

266. Select the wrong statement:

 
 
 
 

267. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

269. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. Helotism word is used for the symbiosis between :

 
 
 
 

273. Vegetative reproduction in Cycas is by means of :

 
 
 
 

274. The role of meiosis is for:

 
 
 
 

275. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

277. Lichen show :

 
 
 
 

278. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

283. Centric discoid form of diatom is:

 
 
 
 

284. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

286. Wine turns sour because of:

 
 
 
 

287. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

289. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

291. The truncated cone of HIV consists of:

 
 
 
 

292. Where does meiosis occur in yeast?

 
 
 
 

293. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

296. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

300. Redness of red sea is due to :

 
 
 
 

301. The disease symptom necrosis refers to :

 
 
 
 

302. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

304. The plants of Funaria grow :

 
 
 
 

305. Early blight of potato is caused by:

 
 
 
 

306. Most resistant spore in bacteria is:

 
 
 
 

307. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

312. Which group of algae have an incipient nucleus?

 
 
 
 

313. Ovules are not found enclosed in ovary of:

 
 
 
 

314. Smut of maize is caused by :

 
 
 
 

315. Pinus microsporophyll bears:

 
 
 
 

316. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

322. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

325. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

327. Funaria can be differentiated from Cycas :

 
 
 
 

328. Pasteurized milk is:

 
 
 
 

329. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

331. Who discovered cyanophages?

 
 
 
 

332. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

339. Funaria is :

 
 
 
 

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

 
 
 
 

341. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

344. Green plants are classified as :

 
 
 
 

345. Cycas plant in appearance resembles :

 
 
 
 

346. The ferns are usually found:

 
 
 
 

347. Pythium debaryanum is the causative agent of:

 
 
 
 

348. Parmelia belongs to :

 
 
 
 

349. Which of the following are included in Tracheophyta?

 
 
 
 

350. Bryophyta have a special character from other plants:

 
 
 
 

351. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

354. Fertility of the soil is increased by:

 
 
 
 

355. Select the correct statement: (NEET 2016)

 
 
 
 

356. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

358. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

360. Heterosporous pteridophytes always form:

 
 
 
 

361. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364.

365. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

366. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

369. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

371. Kuru, a human disease is caused by:

 
 
 
 

372. Milk is converted to curd by:

 
 
 
 

373. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

376. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

377. In Funaria :

 
 
 
 

378. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

381. Meiosis in Ulothrix takes place:

 
 
 
 

382. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

385. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

387. The vascular bundles of Cycas stem are :

 
 
 
 

388. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

390. Which of the following is true for Selaginella?

 
 
 
 

391. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

393. The prothallus of fern represents the plant:

 
 
 
 

394. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

396. The rhizoids of Funaria are :

 
 
 
 

397. Which of the following is a monocot?

 
 
 
 

398. The archegonia in Selaginella develop on:

 
 
 
 

399. Funaria are commonly found :

 
 
 
 

400. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

402. Saccharomyces is well known for:

 
 
 
 

403. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

405. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

407. The lambda phase is a:

 
 
 
 

408. Enteric bacteria are those bacteria that live:

 
 
 
 

409. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

415. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

417. Red rot of sugarcane is caused by:

 
 
 
 

418. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

420. Sexual reproduction in Rhizopus is by:

 
 
 
 

421. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

423. What are Cyanobacteria?

 
 
 
 

424. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

427. Azolla growing in paddy fields helps in:

 
 
 
 

428. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

430. True sexuality is not found in:

 
 
 
 

431. Which of the following does not contain chlorophyll?

 
 
 
 

432. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

435. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

437. Pollination in Pinus is :

 
 
 
 

438. Lichens form the first community in

 
 
 
 

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

 
 
 
 

440. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

442. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

447. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

449. In tracheophyta:

 
 
 
 

450. Viroids have:

 
 
 
 

451. The Rhizopus is:

 
 
 
 

452. The seedless plants which possess vascular tissues are:

 
 
 
 

453. Fruiting body of lichens is :

 
 
 
 

454. Economic importance of bacteria lies in their being:

 
 
 
 

455. White rust of crucifers is caused by:

 
 
 
 

456. Chief constituents of bordeaux mixture are :

 
 
 
 

457. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

460. Spermatophyta are characterized by producing:

 
 
 
 

461. The sori in Dryopteris are found on:

 
 
 
 

462. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

467. Pollination in Cycas takes place by :

 
 
 
 

468. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

470. Sometimes the bacterial cell is enclosed in:

 
 
 
 

471. Nitrifying bacteria play an important role by converting:

 
 
 
 

472. To which class Riccia belongs :

 
 
 
 

473. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

477. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

479. 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?

 
 
 
 

480. The DNA of E coli is:

 
 
 
 

481. The leafy fern plant represents the:

 
 
 
 

482. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. Seeds are characteristically found in :

 
 
 
 

486. Agar-agar is obtained from:

 
 
 
 

487. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

489. Who named prion?

 
 
 
 

490. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

492. The gametophyte of moss has distinct phases :

 
 
 
 

493. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

496. Which of the following are included in Tracheophyta?

 
 
 
 

497. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

500. Enzymes are absent in:

 
 
 
 

501. Smallpox is caused by:

 
 
 
 

502. Antibiotics cure the disease by:

 
 
 
 

503.

504. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. Bacteria were first discovered by:

 
 
 
 

508. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

511. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. Pteridophytes are also known as :

 
 
 
 

519. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

521. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

525. Late blight of potato is caused by :

 
 
 
 

526. Ovary is absent in:

 
 
 
 

527. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

529. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

531. Mycoplasma are sensitive to:

 
 
 
 

532. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

535. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

538. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

540.

 

541. Antibiotic has been extracted from :

 
 
 
 

542. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

544. The mycelium of Rhizopus is:

 
 
 
 

545. Lichens are ecologically important because :

 
 
 
 

546. 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?

 
 
 
 

547. Ergot is obtained from :

 
 
 
 

548. Most primitive kind of flower is represented by:

 
 
 
 

549. Cryptogams include :

 
 
 
 

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

 
 
 
 

551. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

554. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

558. Reproduction in Cycas takes place by :

 
 
 
 

559. Total parasites belong to:

 
 
 
 

560. Botulism is a:

 
 
 
 

561. In Selaginella, the microsporangia are:

 
 
 
 

562. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

565. Longest known virus is:

 
 
 
 

566. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

571. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

574. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

576. 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:

 
 
 
 

577. Funaria is a Bryophyta because :

 
 
 
 

578. The fungi used as food are:

 
 
 
 

579. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

582. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

585. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

587. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

589. Who discovered streptomycin?

 
 
 
 

590. Typhoid in man is caused by:

 
 
 
 

591. Which is a redwood tree?

 
 
 
 

592. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

598. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

600. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

605. What is a vector?

 
 
 
 

606. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

608. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

610. The middle sterile part of capsule is called:

 
 
 
 

611. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

615. Bryophyta have been placed in cryptogams because:

 
 
 
 

616. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

618. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

621. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

625. Germ theory of disease was proposed by:

 
 
 
 

626. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

628. Desired type of Cycas can be grown by:

 
 
 
 

629. Cell walls of Gram-positive bacteria contain:

 
 
 
 

630. Proembryo in Pinus is :

 
 
 
 

631. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. Pasteur is famous for his:

 
 
 
 

637. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

642. The megaspore of Selaginella on germination produces:

 
 
 
 

643. Citrus canker is caused by:

 
 
 
 

644. The fungi that grow on wood are called:

 
 
 
 

645. Cellular slime mold is:

 
 
 
 

646. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

649. Lichens are pioneers of vegetation in a :

 
 
 
 

650. In Herpes virus DNA is:

 
 
 
 

651. Club moss is the common name of :

 
 
 
 

652. Endemic plants are characterised by their:

 
 
 
 

653. Absorptive nutrition is:

 
 
 
 

654. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

656. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. Pneumonia is caused by:

 
 
 
 

661. Spores of which plants have chloroplast:

 
 
 
 

662. Number of capsomeres forming capsid of TMV is:

 
 
 
 

663. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

666. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

668. In Cycas which structure is equivalent to stamen?

 
 
 
 

669. The most primitive vascular plants is:

 
 
 
 

670. Oswald Tippo’s classification was based on :

 
 
 
 

671. Sporophyte of Funaria is :

 
 
 
 

672. The leaves of Funaria are :

 
 
 
 

673. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

675. Most primitive embryophytes are placed in:

 
 
 
 

676. Red rot of sugarcane is caused by :

 
 
 
 

677. Virion refers to:

 
 
 
 

678. 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:

 
 
 
 

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

 
 
 
 

680. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

683. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

685. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

688. E coli is a:

 
 
 
 

689. What is the role of nitrifying bacteria?

 
 
 
 

690. Protistan algae obtain their food as:

 
 
 
 

691. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

693. Penicillin is obtained from:

 
 
 
 

694. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

696. Oswald Tippo’s classification is:

 
 
 
 

697. Indusium in Dryopteris is:

 
 
 
 

698. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

702. Which of the following is sago palm?

 
 
 
 

703. Viruses are commonly transmitted in plants through:

 
 
 
 

704. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

711. Rhizopus belongs to:

 
 
 
 

712. All protozoans possess:

 
 
 
 

713. What are plasmids?

 
 
 
 

714. Facultative parasite is:

 
 
 
 

715. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

716. Mostly type of zygospore in Ulothrix is:

 
 
 
 

717. Male gametophyte of Selaginella is found:

 
 
 
 

718. Germination of the seed of Pinus is :

 
 
 
 

719. Most primitive embryophytes are placed in :

 
 
 
 

720. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

722. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

728. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

730. Bacteriophages have been used as:

 
 
 
 

731. Bacteria differ from viruses in being sensitive to:

 
 
 
 

732. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

734. The development of sporangium in Selaginella is:

 
 
 
 

735. The orders generally have the uniform endings:

 
 
 
 

736.

737. First animal pathogenic virus was discovered by:

 
 
 
 

738. Anoxygenic photosynthesis occurs in:

 
 
 
 

739. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

741. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

745. Pollination drop is:

 
 
 
 

746. LSD is:

 
 
 
 

747. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

750. In angiosperms double fertilization represents:

 
 
 
 

751. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Fruits are not found in :

 
 
 
 

755. The chloroplast of Chlamydomonas are:

 
 
 
 

756. In moss, reduction division occurs in :

 
 
 
 

757. Which have the largest antherozoid?

 
 
 
 

758. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

762. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

764. A gill of Agaricus:

 
 
 
 

765. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

767. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

769. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

770. Embryo formation is not known in :

 
 
 
 

771. The ascus of yeast contains:

 
 
 
 

772. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

776. Cycas is:

 
 
 
 

777. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

779. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

781. The fungi are mostly:

 
 
 
 

782. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

786. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

789. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. Winged seeds are found in :

 
 
 
 

795. The sporangiophores in Rhizopus are:

 
 
 
 

796. The leaves of Funaria are :

 
 
 
 

797. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

799. The young leaves of Cycas have :

 
 
 
 

800. The leaf of Cycas shows:

 
 
 
 

801. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. Pasteurization of milk involves heating for:

 
 
 
 

805. In Gymnocarpeae the fruiting body is :

 
 
 
 

806. The root nodules of leguminous plants contain:

 
 
 
 

807. Late blight of potato is caused by:

 
 
 
 

808. Mycoplasma are:

 
 
 
 

809. What is streptomycin?

 
 
 
 

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

 
 
 
 

811. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

813. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

815. The fern plant is:

 
 
 
 

816. Common phycobiont in a lichen is :

 
 
 
 

817. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

820. Little leaf disease of Brinjal is caused by:

 
 
 
 

821. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

825. Coenogamete is found in:

 
 
 
 

826. Gram stain is used to:

 
 
 
 

827. Detailed study of bacteriophage was made by:

 
 
 
 

828. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

830. Some diseases caused by bacteria are:

 
 
 
 

831. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

832. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

835. Which of the following lichens is harmful?

 
 
 
 

836. Which part of Riccia bears nurse cells?

 
 
 
 

837. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

841. Seeds are characteristically found in:

 
 
 
 

842. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

844. Which of the following statement is correct?

 
 
 
 

845. Black rust of wheat is caused by:

 
 
 
 

846. In a diplontic life cycle:

 
 
 
 

847. Leprosy is caused by:

 
 
 
 

848. Transfusion tissue is present in the leaflet of:

 
 
 
 

849. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

854. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

856. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

858. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

864. In Pteris, the archegonia are present: