Quiz_Random

1. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. True sexuality is not found in:

 
 
 
 

6. The disease apple scab is caused by:

 
 
 
 

7. Fairy ring is the name given to:

 
 
 
 

8. Cellular slime mold is:

 
 
 
 

9. Generic name of mango is:

 
 
 
 

10. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

12. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

14. In Gymnosperms endosperm is a:

 
 
 
 

15. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

17. Which of the following are absent in Mycoplasma?

 
 
 
 

18. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

20. Streptomyces falls under:

 
 
 
 

21. Bacteria are considered to be plants because they:

 
 
 
 

22. Endemic plants are characterised by their:

 
 
 
 

23. Woody climbers are known as :

 
 
 
 

24. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. Protozoans are considered animals because these are:

 
 
 
 

29. Synzoospore is produced in:

 
 
 
 

30. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

32. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Bacteriophages have been used as:

 
 
 
 

36. All protozoans possess:

 
 
 
 

37. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

44. The lichens growing on rocks are called :

 
 
 
 

45. Which is a redwood tree?

 
 
 
 

46. The spur of Pinus roxburghii has :

 
 
 
 

47. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Ectocarpus produces:

 
 
 
 

51. Pinus microsporophyll bears:

 
 
 
 

52. The archegonia of Selaginella are differentiated by:

 
 
 
 

53. In Selaginella, the microsporangia are:

 
 
 
 

54. Cycas is :

 
 
 
 

55. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

57. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

59. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

61. Late blight of potato is caused by:

 
 
 
 

62. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Most of the algae are :

 
 
 
 

66. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

68. Lichens are indicators of :

 
 
 
 

69. The vascular bundles of Cycas stem are :

 
 
 
 

70. Winged seeds are found in :

 
 
 
 

71. The word “sea weeds” is used for:

 
 
 
 

72. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

74. In dinoflagellates, the two flagella are:

 
 
 
 

75. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

77. Sexual reproduction of lichen is due to :

 
 
 
 

78. One of the distinctive feature of Spirogyra is :

 
 
 
 

79. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

85. The phloem of vascular system of Cycas is :

 
 
 
 

86. The mode of nutrition of bacteria is usually:

 
 
 
 

87. Standard size of a herbarium sheet is:

 
 
 
 

88. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. The flagella of Chlamydomonas are:

 
 
 
 

92. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

94. Which is a gametophytic tissue?

 
 
 
 

95. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

97. Most resistant spore in bacteria is:

 
 
 
 

98. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

99. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

100. Pneumonia is caused by:

 
 
 
 

101. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

103. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

108. Amoeba is a member of the phylum:

 
 
 
 

109. Fruits are not found in :

 
 
 
 

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

 
 
 
 

111. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

115. Pollination drop is:

 
 
 
 

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

 
 
 
 

117. Early blight of potato is caused by:

 
 
 
 

118. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

121. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

124. Seeds are characteristically found in:

 
 
 
 

125. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

127. Why is Cycas called a living fossil?

 
 
 
 

128. Interferon is a:

 
 
 
 

129. Rhizopus belongs to:

 
 
 
 

130. The gametophyte of moss has distinct phases :

 
 
 
 

131. Cycas is different from mango in :

 
 
 
 

132. Cycas plant in appearance resembles :

 
 
 
 

133. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

136. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

138. In tracheophyta:

 
 
 
 

139. Antibiotic has been extracted from :

 
 
 
 

140. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

143. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

145. In angiosperms double fertilization represents:

 
 
 
 

146. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. Plasmids are:

 
 
 
 

150. . Tapetum develops in:

 
 
 
 

151.

152. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

154. Meiosis in Ulothrix takes place:

 
 
 
 

155. Most primitive embryophytes are placed in:

 
 
 
 

156. Fern prothallus produces:

 
 
 
 

157. Diphtheria is caused by:

 
 
 
 

158. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

161. The term stele was given by:

 
 
 
 

162. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. In Cycas the fertilization is:

 
 
 
 

166. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

168. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

170. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. How is moss different from fern?

 
 
 
 

174. Most primitive embryophytes are placed in :

 
 
 
 

175. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

181. Reproduction in Rhizopus is:

 
 
 
 

182. Pasteurized milk is:

 
 
 
 

183. 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:

 
 
 
 

184. Which is the correct statement about Selaginella?

 
 
 
 

185. The largest known bacterium is:

 
 
 
 

186. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. The alga, Spirogyra are found in :

 
 
 
 

190. Which is a fungicide?

 
 
 
 

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

 
 
 
 

192. The lambda phase is a:

 
 
 
 

193. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

196. Select the wrong statement:

 
 
 
 

197. Saccharomyces is well known for:

 
 
 
 

198. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

200. Facultative saprophyte is:

 
 
 
 

201. 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?

 
 
 
 

202. Viroids have:

 
 
 
 

203. Sometimes the bacterial cell is enclosed in:

 
 
 
 

204. Who discovered heterothallism in fungi?

 
 
 
 

205. Cocci types of bacteria are:

 
 
 
 

206. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

208. Cryptogams include :

 
 
 
 

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

 
 
 
 

210. Citrus canker is caused by:

 
 
 
 

211. Triple antigen injection or vaccine are for:

 
 
 
 

212. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

213. Linnaeus is credited with introducing:

 
 
 
 

214. The stele of Dryopteris is a:

 
 
 
 

215. The Rhizopus is:

 
 
 
 

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

 
 
 
 

217. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

219. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

221. The chief characteristic of bryophyta is that :

 
 
 
 

222. Ulothrix produces :

 
 
 
 

223. Meristele of fern is:

 
 
 
 

224. Select the correct statement: (NEET 2016)

 
 
 
 

225. Banana bunchy top is caused by :

 
 
 
 

226. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

228. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

229. Bacteria are found everywhere, except:

 
 
 
 

230. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

232. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

234. Metulae are found in:

 
 
 
 

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

 
 
 
 

236. Green plants are classified as:

 
 
 
 

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

 
 
 
 

238. What are plasmids?

 
 
 
 

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

 
 
 
 

240. In Cycas microsporangia are borne on:

 
 
 
 

241. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

243. The order generally ends with:

 
 
 
 

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

 
 
 
 

245. Special feature of pollen grains of Pinus is :

 
 
 
 

246. The ascus of yeast contains:

 
 
 
 

247. LSD is:

 
 
 
 

248. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

250. Azolla and Salvinia both are:

 
 
 
 

251. Wine turns sour because of:

 
 
 
 

252. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

258. Enteric bacteria are those bacteria that live:

 
 
 
 

259. Cycas is similar to a mustard plant :

 
 
 
 

260. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. Viruses have:

 
 
 
 

264. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

268. Climbers are found in genus:

 
 
 
 

269. Lichen show :

 
 
 
 

270. Which one of the following statement is wrong?

 
 
 
 

271. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

273. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

277. Mucilaginous canals in Cycas are found in :

 
 
 
 

278. Some diseases caused by bacteria are:

 
 
 
 

279. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

280. The leaves of Funaria are :

 
 
 
 

281. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

283. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

287. Who named prion?

 
 
 
 

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

 
 
 
 

289. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

293. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

294. Embryophyta includes:

 
 
 
 

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

 
 
 
 

296. Roots are absent in :

 
 
 
 

297. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

299. The orders generally have the uniform endings:

 
 
 
 

300. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

301. 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?

 
 
 
 

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

 
 
 
 

303. Spermatophyta are characterized by producing:

 
 
 
 

304. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

306. The prothallus of fern represents the plant:

 
 
 
 

307. Which is not found in bacteria?

 
 
 
 

308. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

310. Cyathia is characterized by:

 
 
 
 

311. Which of the following statements is not correct?

 
 
 
 

312. The fungi used as food are:

 
 
 
 

313. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

315. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. Ovary is absent in :

 
 
 
 

320. In Pteris, the archegonia are present:

 
 
 
 

321. The group algae possesses representatives belonging to kingdom:

 
 
 
 

322. Ergot of rye is caused by:

 
 
 
 

323. Which is the nuclear material in bacteria?

 
 
 
 

324. Psilotum is:

 
 
 
 

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

 
 
 
 

326. The most primitive vascular plants is:

 
 
 
 

327. In moss, calyptra is formed from:

 
 
 
 

328. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

331. Which of the following statement is correct?

 
 
 
 

332. The central part of Funaria axis is :

 
 
 
 

333. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

335. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

338. Rice, pea, potato are :

 
 
 
 

339. An Hfr bacterium is one that contains:

 
 
 
 

340. What is special feature of fern archegonia?

 
 
 
 

341. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

343. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

345. Sporophyte of fern is:

 
 
 
 

346. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

349. In a bacteriophage, DNA is present in:

 
 
 
 

350. The sporangia of Selaginella are attached:

 
 
 
 

351. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

354. What is absent in Deuteromycetes?

 
 
 
 

355. Helotism word is used for the symbiosis between :

 
 
 
 

356. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

358. The gametophyte produced by apospory is :

 
 
 
 

359. Proembryo in Pinus is :

 
 
 
 

360. Quarantine regulations are concerned with:

 
 
 
 

361. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

367. The tallest moss in the world is :

 
 
 
 

368. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

370. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

372. Heterospory and ligulate leaves are a feature of:

 
 
 
 

373. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

375. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. Mycoplasma are:

 
 
 
 

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

 
 
 
 

380. Bacteria which are spherical are called:

 
 
 
 

381. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

384. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

386. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

389. Common phycobiont in a lichen is :

 
 
 
 

390. Fern phloem lacks:

 
 
 
 

391. Lichens are pioneers of vegetation in a :

 
 
 
 

392. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

393. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

395. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

397. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

399. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

401. Lichens are ecologically important because :

 
 
 
 

402. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

403. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

406. Where does meiosis occur in yeast?

 
 
 
 

407. Which bacteria convert nitrate into nitrogen?

 
 
 
 

408. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

409. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

411. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

416. Redness of red sea is due to :

 
 
 
 

417. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

418. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

421. Which have the largest antherozoid?

 
 
 
 

422. Green plants are classified as :

 
 
 
 

423. The young leaves of Cycas have :

 
 
 
 

424. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

426. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

430. Lichens form the first community in

 
 
 
 

431. Methanogens belong to:

 
 
 
 

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

 
 
 
 

433. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

435. Funaria is a Bryophyta because :

 
 
 
 

436. Ovules are not found enclosed in ovary of:

 
 
 
 

437. How a fern differs from a moss?

 
 
 
 

438. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

439. Mycoplasma was discovered by:

 
 
 
 

440. Longest known virus is:

 
 
 
 

441. Fern prothallus is:

 
 
 
 

442. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

445. Gram stain is used to:

 
 
 
 

446. Kuru, a human disease is caused by:

 
 
 
 

447. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

450. The sexual reproductive organs in Rhizopus are:

 
 
 
 

451. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

454. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

455. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

457. Germination of the seed of Pinus is :

 
 
 
 

458. Which is an edible fungus?

 
 
 
 

459. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

461. 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:

 
 
 
 

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

 
 
 
 

463. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. Ginkgo biloba is a:

 
 
 
 

467. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

469. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

472. Cycas is:

 
 
 
 

473. Fruits are not found in:

 
 
 
 

474.

 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. Coenogamete is found in:

 
 
 
 

481. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

486. Smallpox is caused by:

 
 
 
 

487. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

489. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

491. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

493. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

496. Streptomycin is obtained from:

 
 
 
 

497. Anoxygenic photosynthesis occurs in:

 
 
 
 

498. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

500. The coralloid roots are :

 
 
 
 

501. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

503. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. Tautonyms are illegitimate in:

 
 
 
 

508. Photosynthetic bacteria have:

 
 
 
 

509. The root nodules of leguminous plants contain:

 
 
 
 

510. 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:

 
 
 
 

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

 
 
 
 

512. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

517. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

519. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

521. Which is absent from the xylem of Cycas?

 
 
 
 

522. What is the role of nitrifying bacteria?

 
 
 
 

523. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

527. Spirogyra differs from moss protonema in having :

 
 
 
 

528. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

531. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

534. Which among the following is a shrub?

 
 
 
 

535. Zoogametes are not found in:

 
 
 
 

536. Sexual reproduction in Rhizopus is by:

 
 
 
 

537. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

539. E coli is a:

 
 
 
 

540. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

542. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

544. Smut of maize is caused by :

 
 
 
 

545. Nitrifying bacteria play an important role by converting:

 
 
 
 

546. Some biologists have used the term Mycetozoa for:

 
 
 
 

547. What is a vector?

 
 
 
 

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

 
 
 
 

549. In moss, conducting tissue is made up of

 
 
 
 

550. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

552. Reproduction in Cycas takes place by :

 
 
 
 

553. Mycoplasma are sensitive to:

 
 
 
 

554. The fungi are mostly:

 
 
 
 

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

 
 
 
 

556. 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:

 
 
 
 

557. Which of the following shows heterotrichous habit?

 
 
 
 

558. Maximum diversity of life forms occurs in :

 
 
 
 

559. The chromosomal number in:

 
 
 
 

560. To which country Antony van Leeuwenhoek belong?

 
 
 
 

561. To which class Riccia belongs :

 
 
 
 

562. Most of the lichens are composed of :

 
 
 
 

563. 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:

 
 
 
 

564. The similarity between cyanobacteria and bacteria:

 
 
 
 

565. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

567. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

569. In moss, reduction division occurs in :

 
 
 
 

570. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

573. All archaebacteria lack:

 
 
 
 

574. Chemosynthetic bacteria are:

 
 
 
 

575. Clostridium can:

 
 
 
 

576. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

581. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

584. What is mycorrhiza?

 
 
 
 

585. Small epidermal swellings due to infection are called :

 
 
 
 

586. Mycoplasma contains:

 
 
 
 

587. Bryophyta have been placed in cryptogams because:

 
 
 
 

588. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

591. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

597. Nitrogen-fixing bacteria may be located:

 
 
 
 

598. Ergot is obtained from :

 
 
 
 

599. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. Bacteria growing on synthetic medium are called:

 
 
 
 

603. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

606. Leaf spot of groundnut is caused by :

 
 
 
 

607. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

609. Funaria is :

 
 
 
 

610. The ferns are usually found:

 
 
 
 

611. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

617. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

622. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

624. In Cycas:

 
 
 
 

625. Pteridophytes are also known as :

 
 
 
 

626. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

628. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

630. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. Fertility of the soil is increased by:

 
 
 
 

635. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

637. Photoautotrophic bacteria have:

 
 
 
 

638. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

640. The Rhizopus gametes are formed in:

 
 
 
 

641. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

651. Red rot of sugarcane is caused by :

 
 
 
 

652. The gametophyte of fern is as:

 
 
 
 

653. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

656. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

658. Who among the following discovered virus?

 
 
 
 

659. Aflatoxin is produced as a product in :

 
 
 
 

660. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

662. Yeast grows more rapidly in:

 
 
 
 

663. The development of Selaginella embryo is:

 
 
 
 

664. Pollination in Cycas takes place by :

 
 
 
 

665. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

668.

669. Which of the following are included in Tracheophyta?

 
 
 
 

670. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

671. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

673. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

675. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

677. TMV was isolated in crystalline form by:

 
 
 
 

678. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

680. Total parasites belong to:

 
 
 
 

681. John Hutchinson divided dicots into two divisions:

 
 
 
 

682. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

684. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

688. Diploxylic vascular bundles are found in:

 
 
 
 

689. Most appropriate word for protozoans is:

 
 
 
 

690. Pythium debaryanum is the causative agent of:

 
 
 
 

691. The development of sporangium in Selaginella is:

 
 
 
 

692. Most primitive kind of flower is represented by:

 
 
 
 

693. Mycoplasmas are not viruses in nature because:

 
 
 
 

694. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

697. In Cycas which structure is equivalent to stamen?

 
 
 
 

698. Water-net is the name of:

 
 
 
 

699. Some bacteria cannot be killed easily because of:

 
 
 
 

700. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

702. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

704. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

707. Reserve food in Euglena is:

 
 
 
 

708. Heterocysts are found in :

 
 
 
 

709. Centric discoid form of diatom is:

 
 
 
 

710. The seedless plants which possess vascular tissues are:

 
 
 
 

711. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

713. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

716. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. Funaria is :

 
 
 
 

720. Ovules are not found enclosed in ovary in :

 
 
 
 

721. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

724. Leprosy is caused by:

 
 
 
 

725. Vegetative reproduction in Cycas is by means of :

 
 
 
 

726. Which of the following applies to Selaginella?

 
 
 
 

727. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

730. The megasporangium of Selaginella is:

 
 
 
 

731. Water bloom is generally caused by :

 
 
 
 

732. Which of the following are included in Tracheophyta?

 
 
 
 

733. 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:

 
 
 
 

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

 
 
 
 

735. Which of the following is true for Selaginella?

 
 
 
 

736. The chloroplast in Ulothrix is :

 
 
 
 

737. Rhizophore of Selaginella is:

 
 
 
 

738. Little leaf disease of Brinjal is caused by:

 
 
 
 

739. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

741. Which is an exception to cell theory?

 
 
 
 

742. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

745. Seeds are characteristically found in :

 
 
 
 

746. Nannandria are:

 
 
 
 

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

 
 
 
 

748. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

759. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. Water-borne bacterial diseases are:

 
 
 
 

765. Virion refers to:

 
 
 
 

766. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

770. In moss, stomata are found:

 
 
 
 

771. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

774. Saccharomyces ludwigii ascus produces:

 
 
 
 

775.

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

 
 
 
 

777. Multicellular and jacketed sex organs are found in :

 
 
 
 

778. Red rot of sugarcane is caused by:

 
 
 
 

779. Photosynthetic protists belong to:

 
 
 
 

780. Germ theory of disease was proposed by:

 
 
 
 

781. The truncated cone of HIV consists of:

 
 
 
 

782. Chief constituents of bordeaux mixture are :

 
 
 
 

783. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

785. Pythium debaryanum is the causative agent of:

 
 
 
 

786. What is streptomycin?

 
 
 
 

787. The disease symptom necrosis refers to :

 
 
 
 

788. Yeast is a source of:

 
 
 
 

789. Facultative parasite is:

 
 
 
 

790. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

795. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

797. 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:

 
 
 
 

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

 
 
 
 

799. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

800. 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?

 
 
 
 

801. Placenta in fern is:

 
 
 
 

802. Iodine is obtained from:

 
 
 
 

803. An alga which is rich in proteins:

 
 
 
 

804. The sporangium of fern contains nearly:

 
 
 
 

805. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

807. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

809. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

811. Which part of Riccia bears nurse cells?

 
 
 
 

812. Spores of which plants have chloroplast:

 
 
 
 

813. Gametophyte is the main plant body in :

 
 
 
 

814. Liverworts are included in :

 
 
 
 

815. The source of litmus is :

 
 
 
 

816. Among the algae kelps are :

 
 
 
 

817. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

819. Bacteria were first discovered by:

 
 
 
 

820. First animal pathogenic virus was discovered by:

 
 
 
 

821. Each chloroplast in Spirogyra bears :

 
 
 
 

822. Embryophyta includes :

 
 
 
 

823. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

825. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

827. Typhoid in man is caused by:

 
 
 
 

828. Heterotrichous habit means :

 
 
 
 

829. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

831. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

833. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

835. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

837. Botulism is a:

 
 
 
 

838. The sporangiophores in Rhizopus are:

 
 
 
 

839. The plants of Funaria grow :

 
 
 
 

840. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

842. Gymnosperms could also be called as:

 
 
 
 

843. The upper region of moss capsule is :

 
 
 
 

844. Who discovered cyanophages?

 
 
 
 

845. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

847. The archegonia in Selaginella develop on:

 
 
 
 

848. The chief characteristic of class Ascomycetes is:

 
 
 
 

849. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

852. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

855. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

857. Which causes red tide?

 
 
 
 

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

 
 
 
 

859. Agar-agar is obtained from:

 
 
 
 

860. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. Detailed study of bacteriophage was made by:

 
 
 
 

864. Parmelia belongs to :