Quiz_Random

1. Common phycobiont in a lichen is :

 
 
 
 

2. Small epidermal swellings due to infection are called :

 
 
 
 

3. Bacteria differ from viruses in being sensitive to:

 
 
 
 

4. In moss, sporogenous tissue arises from:

 
 
 
 

5. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

6. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

9. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. The ascus of yeast contains:

 
 
 
 

17. 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?

 
 
 
 

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

 
 
 
 

19. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

21. Pseudomycelium is found in:

 
 
 
 

22. Special feature of pollen grains of Pinus is :

 
 
 
 

23. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

28. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

33. The chromosomal number in:

 
 
 
 

34. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

36. Male gametes in Dryopteris are:

 
 
 
 

37. Iodine is obtained from :

 
 
 
 

38. Quarantine regulations are concerned with:

 
 
 
 

39. Typhoid in man is caused by:

 
 
 
 

40. Funaria are commonly found :

 
 
 
 

41. Ulothrix produces :

 
 
 
 

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

 
 
 
 

43. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

45. Each chloroplast in Spirogyra bears :

 
 
 
 

46. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Kuru, a human disease is caused by:

 
 
 
 

51. Which is absent from the xylem of Cycas?

 
 
 
 

52. The sporangia of Selaginella are attached:

 
 
 
 

53. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

55. The leafy fern plant represents the:

 
 
 
 

56. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

58. The male gametes of Pinus are :

 
 
 
 

59. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Usually, bacteria reproduce by:

 
 
 
 

64. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

68. The fungi are usually:

 
 
 
 

69. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

71. Which of the following is sago palm?

 
 
 
 

72. The root nodules of leguminous plants contain:

 
 
 
 

73. The fungi used as food are:

 
 
 
 

74. The tree fern is:

 
 
 
 

75. Transfusion tissue is present in the leaflet of:

 
 
 
 

76. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

77. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. In Gymnosperms endosperm is a:

 
 
 
 

81. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Mycoplasma are:

 
 
 
 

85. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

87. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

89. The smallest unit of classification is:

 
 
 
 

90. The sexual reproductive organs in Rhizopus are:

 
 
 
 

91. Cycas is:

 
 
 
 

92. Economic importance of bacteria lies in their being:

 
 
 
 

93. 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?

 
 
 
 

94. Detailed study of bacteriophage was made by:

 
 
 
 

95. Ovary is absent in:

 
 
 
 

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

 
 
 
 

97. Liverworts are included in :

 
 
 
 

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

 
 
 
 

99. 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:

 
 
 
 

100. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

102. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

104. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

106. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

108. Vascular cryptogams is the term used for:

 
 
 
 

109. Total parasites belong to:

 
 
 
 

110. Metulae are found in:

 
 
 
 

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

 
 
 
 

112. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

114. Spirogyra differs from moss protonema in having :

 
 
 
 

115. Citrus canker is caused by:

 
 
 
 

116. Which of the following applies to Selaginella?

 
 
 
 

117. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

119. Which is a redwood tree?

 
 
 
 

120. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

122. The smallest bacterium is:

 
 
 
 

123. The sporangium of fern contains nearly:

 
 
 
 

124. Agar-agar is obtained from:

 
 
 
 

125. Psilotum is:

 
 
 
 

126. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

128. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

131. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

134. Lichens are the indicator of pollution :

 
 
 
 

135. Ovules are not found enclosed in ovary in :

 
 
 
 

136. All protozoans possess:

 
 
 
 

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

 
 
 
 

138. The gametophyte of moss has distinct phases :

 
 
 
 

139. Male gametophyte of Selaginella is found:

 
 
 
 

140. How is moss different from fern?

 
 
 
 

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

 
 
 
 

142. Placenta in fern is:

 
 
 
 

143. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

146. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

148. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

153. Soil fertility is lost by the activities of:

 
 
 
 

154. The zoospores of Ulothrix are :

 
 
 
 

155. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

158. In dinoflagellates, the two flagella are:

 
 
 
 

159. The spermatozoids of Cycas are :

 
 
 
 

160. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

162. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

164. In Pteris, the roots are:

 
 
 
 

165. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. Vascular cryptogam is the term used for :

 
 
 
 

169. Facultative saprophyte is:

 
 
 
 

170. Reproduction in Cycas takes place by :

 
 
 
 

171. Fruits are not found in :

 
 
 
 

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

 
 
 
 

173. Vegetative reproduction in Cycas is by means of :

 
 
 
 

174. The rhizoids of Funaria are :

 
 
 
 

175. Bryophyta have been placed in cryptogams because:

 
 
 
 

176. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

177. The gametophyte of fern is as:

 
 
 
 

178. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

180. Botulinum toxin effects:

 
 
 
 

181. Oswald Tippo’s classification is:

 
 
 
 

182. Most resistant spore in bacteria is:

 
 
 
 

183. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

186. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

188. Rice, pea, potato are :

 
 
 
 

189. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

191. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

196. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

198. Cycas is :

 
 
 
 

199. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

202. Mycoplasma are sensitive to:

 
 
 
 

203. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

210. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. The gametophyte produced by apospory is :

 
 
 
 

214. The seedless plants which possess vascular tissues are:

 
 
 
 

215. . Tapetum develops in:

 
 
 
 

216. Cycas revoluta is widely grown as :

 
 
 
 

217. Which statement is wrong in regard to bacteria?

 
 
 
 

218. The sporophyte of Riccia is :

 
 
 
 

219. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

224. Why is Cycas called a living fossil?

 
 
 
 

225. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

227. What are plasmids?

 
 
 
 

228. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

230. Cap cells are found in the filament of:

 
 
 
 

231. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. Who among the following discovered virus?

 
 
 
 

236. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

240. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

241. Cleavage polyembryony is found in :

 
 
 
 

242. Who discovered streptomycin?

 
 
 
 

243. Absorptive nutrition is:

 
 
 
 

244. 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:

 
 
 
 

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

 
 
 
 

246. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

248. The antherozoids of Funaria are :

 
 
 
 

249. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

251. Which of the following have a prokaryotic cell?

 
 
 
 

252. Photosynthetic protists belong to:

 
 
 
 

253. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. To which country Antony van Leeuwenhoek belong?

 
 
 
 

257. Pollination in Cycas takes place by :

 
 
 
 

258. Climbers are found in genus:

 
 
 
 

259. Bacteria were first discovered by:

 
 
 
 

260. Cycas is different from mango in :

 
 
 
 

261. Fruits are not found in Cycas because:

 
 
 
 

262. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

265. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

267. The phloem of vascular system of Cycas is :

 
 
 
 

268. Who named prion?

 
 
 
 

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

 
 
 
 

270. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

272. What is mycorrhiza?

 
 
 
 

273. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

275. Genetic material of TMV is:

 
 
 
 

276. The Rhizopus is:

 
 
 
 

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

 
 
 
 

278. Red rot of sugarcane is caused by :

 
 
 
 

279. Amoeba is a member of the phylum:

 
 
 
 

280. Clostridium can:

 
 
 
 

281. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

285. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

287. Aflatoxin is produced by:

 
 
 
 

288. Nannandria are:

 
 
 
 

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

 
 
 
 

290. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

292. Saccharomyces is used in:

 
 
 
 

293. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

295. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

297. Mycoplasma contains:

 
 
 
 

298. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

301. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

303. Fertility of the soil is increased by:

 
 
 
 

304. Heterospory and ligulate leaves are a feature of:

 
 
 
 

305. The coralloid roots are :

 
 
 
 

306. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

312. In binomial system most of the words are:

 
 
 
 

313. What are Cyanobacteria?

 
 
 
 

314. The lambda phase is a:

 
 
 
 

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

 
 
 
 

316. Gram stain is used to:

 
 
 
 

317. Funaria is a Bryophyta because :

 
 
 
 

318. Spores of which plants have chloroplast:

 
 
 
 

319. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

321. Water-net is the name of:

 
 
 
 

322. Etiology includes the study of :

 
 
 
 

323. Which of the following are included in Tracheophyta?

 
 
 
 

324. Fern prothallus is:

 
 
 
 

325. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

326. The truncated cone of HIV consists of:

 
 
 
 

327. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. Roots are absent in :

 
 
 
 

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

 
 
 
 

337. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

341. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

343. Pasteurized milk is:

 
 
 
 

344.

 

345. Some bacteria cannot be killed easily because of:

 
 
 
 

346. Viruses are considered to be:

 
 
 
 

347. The ferns are usually found:

 
 
 
 

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

 
 
 
 

349. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

354. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

356. The microsporophylls on the cone of Cycas are :

 
 
 
 

357. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. Leprosy is caused by:

 
 
 
 

362. A gill of Agaricus:

 
 
 
 

363. The chief characteristic of bryophyta is that :

 
 
 
 

364. Botulism is a:

 
 
 
 

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

 
 
 
 

366. Acetobacter is useful in:

 
 
 
 

367. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

370. Synzoospore is produced in:

 
 
 
 

371. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

374.

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

 
 
 
 

376. Select the wrong statement:

 
 
 
 

377. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

379. Red rot of sugarcane is caused by :

 
 
 
 

380. Ovary is absent in :

 
 
 
 

381. The archegonia of Selaginella are differentiated by:

 
 
 
 

382. LSD is:

 
 
 
 

383. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

386. Funaria can be differentiated from Cycas :

 
 
 
 

387. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

389. Rhizoids of Riccia are :

 
 
 
 

390. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

392. Sometimes the bacterial cell is enclosed in:

 
 
 
 

393. Mycoplasma is different from bacteria due to:

 
 
 
 

394. Embryophyta includes:

 
 
 
 

395. In Selaginella, the microsporangia are:

 
 
 
 

396. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

398. Spermatophyta are characterized by producing:

 
 
 
 

399. Mycoplasmas are not viruses in nature because:

 
 
 
 

400. The megaspore of Selaginella on germination produces:

 
 
 
 

401. What is a vector?

 
 
 
 

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

 
 
 
 

403. The tallest moss in the world is :

 
 
 
 

404. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

406. Late blight of potato is caused by :

 
 
 
 

407. Cellular slime mold is:

 
 
 
 

408. Bacteria are placed under:

 
 
 
 

409. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Which of the following is a heterosporous pteridophyte?

 
 
 
 

414. Bacteriophages have been used as:

 
 
 
 

415. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

417. The leaves of Funaria are :

 
 
 
 

418. Penicillin was discovered by:

 
 
 
 

419. Nitrogen-fixing bacteria may be located:

 
 
 
 

420. TMV was isolated in crystalline form by:

 
 
 
 

421. The archegonia in Selaginella develop on:

 
 
 
 

422. Longest known virus is:

 
 
 
 

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

 
 
 
 

424. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

428. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

430. Yeast is a source of:

 
 
 
 

431. Pinus gerardiana is :

 
 
 
 

432. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

434. Ergot of rye is caused by:

 
 
 
 

435. Chemosynthetic bacteria are:

 
 
 
 

436. Black rust of wheat is caused by:

 
 
 
 

437. Nitrifying bacteria play an important role by converting:

 
 
 
 

438. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

441. Green plants are classified as :

 
 
 
 

442. Which is not found in bacteria?

 
 
 
 

443. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

446. The upper region of moss capsule is :

 
 
 
 

447. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

449. The antibiotic is obtained from:

 
 
 
 

450. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

454. Among the algae kelps are :

 
 
 
 

455. Facultative parasite is:

 
 
 
 

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

 
 
 
 

457. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

459. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

461. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

463. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

468. Ovules are not found enclosed in ovary of:

 
 
 
 

469. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

473. The megasporangium of Selaginella is:

 
 
 
 

474. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

476. Which of the following are absent in Mycoplasma?

 
 
 
 

477. Which group of algae have an incipient nucleus?

 
 
 
 

478. Funaria is :

 
 
 
 

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

 
 
 
 

480. Mostly type of zygospore in Ulothrix is:

 
 
 
 

481. 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:

 
 
 
 

482. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

484. The order generally ends with:

 
 
 
 

485. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. Fern phloem lacks:

 
 
 
 

489. In a diplontic life cycle:

 
 
 
 

490. Which condition is found in Cycas?

 
 
 
 

491. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

493. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

496. To which class Riccia belongs :

 
 
 
 

497. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

499. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

501. Proembryo in Pinus is :

 
 
 
 

502. The young leaves of Cycas have :

 
 
 
 

503. Smallpox is caused by:

 
 
 
 

504. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

506. Disease resistant plant varieties can be produced by :

 
 
 
 

507. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

509. The sori in Dryopteris are found on:

 
 
 
 

510. The roots of Cycas are :

 
 
 
 

511. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

513.

514. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

516. All algae have:

 
 
 
 

517. Endemic plants are characterised by their:

 
 
 
 

518. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

522. Pasteur is famous for his:

 
 
 
 

523. Sporophyte of Funaria is :

 
 
 
 

524. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

527. Cocci types of bacteria are:

 
 
 
 

528. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

533. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. Lichens reproduce by :

 
 
 
 

538. The most primitive vascular plants is:

 
 
 
 

539. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. In angiosperms double fertilization represents:

 
 
 
 

543. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

545. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

551. Seeds are characteristically found in :

 
 
 
 

552. Mucilaginous canals in Cycas are found in :

 
 
 
 

553. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

558. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. Black rust of wheat is caused by:

 
 
 
 

563. Which among the following is a shrub?

 
 
 
 

564. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. Most primitive embryophytes are placed in :

 
 
 
 

568. Protistan algae obtain their food as:

 
 
 
 

569. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. Chemosynthetic bacteria are:

 
 
 
 

573. Ergot is obtained from :

 
 
 
 

574. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

576. Streptomyces falls under:

 
 
 
 

577. Lichens reproduce by :

 
 
 
 

578. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

580. Which is the nuclear material in bacteria?

 
 
 
 

581. Anoxygenic photosynthesis occurs in:

 
 
 
 

582. Number of capsomeres forming capsid of TMV is:

 
 
 
 

583. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

587. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

589. Most primitive embryophytes are placed in:

 
 
 
 

590. Viroids have:

 
 
 
 

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

 
 
 
 

592. Which is an edible fungus?

 
 
 
 

593. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

596. The term stele was given by:

 
 
 
 

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

 
 
 
 

598. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

599. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

601. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

603. Tautonyms are illegitimate in:

 
 
 
 

604. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

606. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

609. Red rot of sugarcane is caused by:

 
 
 
 

610. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

614. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

617. Acellular slime mold is/are:

 
 
 
 

618. Maximum diversity of life forms occurs in :

 
 
 
 

619. The mode of nutrition of bacteria is usually:

 
 
 
 

620. Meiosis in Ulothrix takes place:

 
 
 
 

621. Most primitive group of vascular plants are:

 
 
 
 

622. Penicillin is obtained from:

 
 
 
 

623. 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:

 
 
 
 

624. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

630. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

632. Which of the following statement is correct?

 
 
 
 

633. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

635. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

639. Heterocysts are found in :

 
 
 
 

640. First animal pathogenic virus was discovered by:

 
 
 
 

641. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

646. Fern plants are:

 
 
 
 

647. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

649. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

651. Which is a tautonym?

 
 
 
 

652. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

654. Bryophyta have a special character from other plants:

 
 
 
 

655. Which one of the following statement is wrong?

 
 
 
 

656. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

659. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

661. Bacteria which are spherical are called:

 
 
 
 

662. 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?

 
 
 
 

663. The central part of Funaria axis is :

 
 
 
 

664. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

668. Who discovered heterothallism in fungi?

 
 
 
 

669. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. 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:

 
 
 
 

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

 
 
 
 

674. Protists which are diploid reproduce sexually by:

 
 
 
 

675. Iodine is obtained from:

 
 
 
 

676. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

678. Cyathia is characterized by:

 
 
 
 

679. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

682. Which of the following lichens is harmful?

 
 
 
 

683. Saccharomyces ludwigii ascus produces:

 
 
 
 

684. The teeth of peristome of Funaria are :

 
 
 
 

685. The disease symptom necrosis refers to :

 
 
 
 

686. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

688. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

690. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

692. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

694. Sexual reproduction of lichen is due to :

 
 
 
 

695. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

697. Which organisms are the oldest life forms?

 
 
 
 

698. Most appropriate word for protozoans is:

 
 
 
 

699. The fungi are mostly:

 
 
 
 

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

 
 
 
 

701. The lichens growing on rocks are called :

 
 
 
 

702. Coenogamete is found in:

 
 
 
 

703. Cryptogams include :

 
 
 
 

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

 
 
 
 

705. Azolla and Salvinia both are:

 
 
 
 

706. In Funaria, calyptra is derived from :

 
 
 
 

707. Embryophyta includes :

 
 
 
 

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

 
 
 
 

709. Milk is converted to curd by:

 
 
 
 

710. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

712. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

714. Which of the following statements is not correct?

 
 
 
 

715. Who discovered cyanophages?

 
 
 
 

716. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

718. The chief characteristic of class Ascomycetes is:

 
 
 
 

719.

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

 
 
 
 

721. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

724. Which fixes atmospheric nitrogen?

 
 
 
 

725. Pythium debaryanum is the causative agent of:

 
 
 
 

726. The fern plant is:

 
 
 
 

727. Reserve food in Euglena is:

 
 
 
 

728. Plasmids are:

 
 
 
 

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

 
 
 
 

730. Meristele of fern is:

 
 
 
 

731. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

734. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

736. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

737. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

739. What is streptomycin?

 
 
 
 

740. In moss, stomata are found:

 
 
 
 

741. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

745. The spur of Pinus roxburghii has :

 
 
 
 

746. The source of litmus is :

 
 
 
 

747. Linnaeus is credited with introducing:

 
 
 
 

748. Club moss and Peat moss belong to:

 
 
 
 

749. Reproduction in Rhizopus is:

 
 
 
 

750. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

752. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

754. Which is a gametophytic tissue?

 
 
 
 

755. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

758. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

760. Pteridophytes are also known as :

 
 
 
 

761. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

763. Most of the algae are :

 
 
 
 

764. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

766. Vascular tissue is found in :

 
 
 
 

767. Generic name of mango is:

 
 
 
 

768. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

770. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

772. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

774. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

776. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

779. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

782. Late blight of potato is caused by:

 
 
 
 

783. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

785. In a bacteriophage, DNA is present in:

 
 
 
 

786. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

788. In Gymnocarpeae the fruiting body is :

 
 
 
 

789. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. The sporangiophores in Rhizopus are:

 
 
 
 

793. Mycoplasma was discovered by:

 
 
 
 

794. Select the correct statement: (NEET 2016)

 
 
 
 

795. 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:

 
 
 
 

796. Lichens show :

 
 
 
 

797. Majority of lichens are :

 
 
 
 

798. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

800. Viruses have:

 
 
 
 

801. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. An alga which is rich in proteins:

 
 
 
 

805. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

807. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

809. Which is a fungicide?

 
 
 
 

810. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

812. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

814. Fern prothallus produces:

 
 
 
 

815. Lichens are indicators of :

 
 
 
 

816. Seeds are characteristically found in:

 
 
 
 

817. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

820. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

824. Bacteria growing on synthetic medium are called:

 
 
 
 

825. The photosynthetic protists are:

 
 
 
 

826. Gymnosperms could also be called as:

 
 
 
 

827. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

834. Lichens form the first community in

 
 
 
 

835. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

840. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

842. Funaria is :

 
 
 
 

843. How a fern differs from a moss?

 
 
 
 

844. In Funaria :

 
 
 
 

845. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

847. Pollination in Pinus is :

 
 
 
 

848. In moss, conducting tissue is made up of

 
 
 
 

849. In moss, peristomial teeth are:

 
 
 
 

850. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

851. Select the wrong statement:

 
 
 
 

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

 
 
 
 

853. Sleeping sickness disease in man is caused by:

 
 
 
 

854. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

855. In Pteris, the archegonia are present:

 
 
 
 

856. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

858. The group algae possesses representatives belonging to kingdom:

 
 
 
 

859. Ovules are not found enclosed in ovary in :

 
 
 
 

860. Heterospory is the production of:

 
 
 
 

861. Embryo formation is not known in :

 
 
 
 

862. In tracheophyta:

 
 
 
 

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

 
 
 
 

864. Pasteurization of milk involves heating for: