Quiz_Random

1. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

3. The DNA of E coli is:

 
 
 
 

4. Which class of Protozoa includes all parasitic forms?

 
 
 
 

5. Rhizopus belongs to:

 
 
 
 

6. Isomorphic type alternation of generation is found in:

 
 
 
 

7. What is streptomycin?

 
 
 
 

8. The term stele was given by:

 
 
 
 

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

 
 
 
 

10. What are plasmids?

 
 
 
 

11. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

13. Which of the following is a heterosporous pteridophyte?

 
 
 
 

14. Clostridium can:

 
 
 
 

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

 
 
 
 

16. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

22. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. In Pteris, the archegonia are present:

 
 
 
 

26. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

28. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

33. Cap cells are found in the filament of:

 
 
 
 

34. The leaf of Cycas shows:

 
 
 
 

35. Mycoplasmas are not viruses in nature because:

 
 
 
 

36. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Downy mildew disease is caused by :

 
 
 
 

41. Lichens are indicators of :

 
 
 
 

42. Club moss and Peat moss belong to:

 
 
 
 

43. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

45. Reserve food in Euglena is:

 
 
 
 

46. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Milk is converted to curd by:

 
 
 
 

50. In moss, peristomial teeth are:

 
 
 
 

51. Which is a tautonym?

 
 
 
 

52. Most of the algae are :

 
 
 
 

53. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

58. Select the wrong statement:

 
 
 
 

59. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Which is a gametophytic tissue?

 
 
 
 

64. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Male gametes in Dryopteris are:

 
 
 
 

68. . Tapetum develops in:

 
 
 
 

69. Nitrogen-fixing bacteria may be located:

 
 
 
 

70. Which of the following is a parasitic algae?

 
 
 
 

71. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Vegetative reproduction in Cycas is by means of :

 
 
 
 

75. Reproduction in Rhizopus is:

 
 
 
 

76. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

81. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

83. E coli is a:

 
 
 
 

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

 
 
 
 

85. Indusium in Dryopteris is:

 
 
 
 

86. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

88. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

90. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

92. In Cycas:

 
 
 
 

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

 
 
 
 

94. The fern plant is:

 
 
 
 

95. Bryophyta have a special character from other plants:

 
 
 
 

96. Most primitive embryophytes are placed in:

 
 
 
 

97. The middle sterile part of capsule is called:

 
 
 
 

98. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

100. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

102. The sporophyte of Riccia is :

 
 
 
 

103. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

105. Bacteriophages have been used as:

 
 
 
 

106. The coralloid roots are :

 
 
 
 

107. Banana bunchy top is caused by :

 
 
 
 

108. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

110. The archegonia of Selaginella are differentiated by:

 
 
 
 

111. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

115. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. True sexuality is not found in:

 
 
 
 

119. Most of the lichens are composed of :

 
 
 
 

120. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

123. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

127. Fern plants are:

 
 
 
 

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

 
 
 
 

129. The fungi that grow on wood are called:

 
 
 
 

130. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

132. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

134. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. What is special feature of fern archegonia?

 
 
 
 

139. Male gametophyte of Selaginella is found:

 
 
 
 

140. Pollination in Cycas takes place by :

 
 
 
 

141. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

146. Infective part of virus was discovered by:

 
 
 
 

147. In tracheophyta:

 
 
 
 

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

 
 
 
 

149. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

151. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

154. The sexual reproductive organs in Rhizopus are:

 
 
 
 

155. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

160. 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?

 
 
 
 

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

 
 
 
 

162. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

164. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

166. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

168. Pteridophyta are also called:

 
 
 
 

169. The smallest unit of classification is:

 
 
 
 

170. Some diseases caused by bacteria are:

 
 
 
 

171. Leaf spot of groundnut is caused by :

 
 
 
 

172. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

176. The nucleus of bacteria is:

 
 
 
 

177. Botulism is a:

 
 
 
 

178. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

180. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

182. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

184. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

186. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

190. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

191. In moss, reduction division occurs in :

 
 
 
 

192. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

195. The photosynthetic protists are:

 
 
 
 

196. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

197. Select the wrong statement:

 
 
 
 

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

 
 
 
 

199. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

202. Cyanophage is a virus that attacks:

 
 
 
 

203. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

211. In Gymnosperms endosperm is a:

 
 
 
 

212. 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?

 
 
 
 

213. Diploxylic vascular bundles are found in:

 
 
 
 

214. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

215. Viroids have:

 
 
 
 

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

 
 
 
 

217. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. Streptomyces falls under:

 
 
 
 

221. The plants of Funaria grow :

 
 
 
 

222. Water-borne bacterial diseases are:

 
 
 
 

223. Diphtheria is caused by:

 
 
 
 

224. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

227. Asexual reproductive body of Volvox is called:

 
 
 
 

228. The chloroplast in Ulothrix is :

 
 
 
 

229. The upper region of moss capsule is :

 
 
 
 

230. Heterospory and ligulate leaves are a feature of:

 
 
 
 

231. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

234. Water-net is the name of:

 
 
 
 

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

 
 
 
 

236. Which among the following is a shrub?

 
 
 
 

237. Placenta in fern is:

 
 
 
 

238. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

240. The order generally ends with:

 
 
 
 

241. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

243. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

245. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

250.

251. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

253. Aflatoxin is produced as a product in :

 
 
 
 

254. First animal pathogenic virus was discovered by:

 
 
 
 

255. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

259. Nitrifying bacteria play an important role by converting:

 
 
 
 

260. All algae have:

 
 
 
 

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

 
 
 
 

262. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

264. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. Mixed cropping helps :

 
 
 
 

268. Standard size of a herbarium sheet is:

 
 
 
 

269. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

274. Polystelic condition is found in:

 
 
 
 

275. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

279. Embryo formation is not known in :

 
 
 
 

280. Agar-agar is obtained from:

 
 
 
 

281. Enzymes are absent in:

 
 
 
 

282. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

284. The alga, Spirogyra are found in :

 
 
 
 

285. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

289. Spermatophyta are characterized by producing:

 
 
 
 

290.

291. Ulothrix produces :

 
 
 
 

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

 
 
 
 

293. John Hutchinson divided dicots into two divisions:

 
 
 
 

294. Reproduction in Cycas takes place by :

 
 
 
 

295. Which fixes atmospheric nitrogen?

 
 
 
 

296. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

298. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

300. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

302. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

304. Chemosynthetic bacteria are:

 
 
 
 

305. Roots are absent in :

 
 
 
 

306. Vascular tissue is found in :

 
 
 
 

307. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

311. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

312. 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:

 
 
 
 

313. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

315. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

317. The fungi used as food are:

 
 
 
 

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

 
 
 
 

319. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

322. Redness of red sea is due to :

 
 
 
 

323. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

324. One of the distinctive feature of Spirogyra is :

 
 
 
 

325. In binomial system most of the words are:

 
 
 
 

326. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

328. Which of the following have algal zone?

 
 
 
 

329. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. The mycelium of Rhizopus is:

 
 
 
 

333. The antibiotic is obtained from:

 
 
 
 

334. Nannandria are:

 
 
 
 

335. Which lichen is called Reindeer moss?

 
 
 
 

336. Green plants are classified as:

 
 
 
 

337. Ovules are not found enclosed in ovary of:

 
 
 
 

338. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

340. Most primitive group of vascular plants are:

 
 
 
 

341. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

343. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

346. Gametophyte is the main plant body in :

 
 
 
 

347. Rice, pea, potato are :

 
 
 
 

348. Meiosis in Ulothrix takes place:

 
 
 
 

349. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

350. Chief constituents of bordeaux mixture are :

 
 
 
 

351. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

354. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. How is moss different from fern?

 
 
 
 

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

 
 
 
 

359. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

368. Maximum diversity of life forms occurs in :

 
 
 
 

369. Most appropriate word for protozoans is:

 
 
 
 

370. The root nodules of leguminous plants contain:

 
 
 
 

371. 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?

 
 
 
 

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

 
 
 
 

373. Cleavage polyembryony is found in :

 
 
 
 

374. Lichen show :

 
 
 
 

375. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

379. The rhizoids of Funaria are :

 
 
 
 

380. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

383. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

385.

 

386. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

387. Which one of the following is a monocot?

 
 
 
 

388. In moss, stomata are found:

 
 
 
 

389. Which have the largest antherozoid?

 
 
 
 

390. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

391. All protozoans possess:

 
 
 
 

392. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

394. The microsporophylls on the cone of Cycas are :

 
 
 
 

395. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

397. Protists which are diploid reproduce sexually by:

 
 
 
 

398. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

399. Enteric bacteria are those bacteria that live:

 
 
 
 

400. The most primitive vascular plants is:

 
 
 
 

401. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

405. White rust of crucifers is caused by:

 
 
 
 

406. Virion refers to:

 
 
 
 

407. Mycoplasma are:

 
 
 
 

408.

409. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

411. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

413. Which of the following lichens is harmful?

 
 
 
 

414. Which of the following are included in Tracheophyta?

 
 
 
 

415. The development of Selaginella embryo is:

 
 
 
 

416. Common phycobiont in a lichen is :

 
 
 
 

417. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

421. To which class Riccia belongs :

 
 
 
 

422. Who discovered cyanophages?

 
 
 
 

423. The first to isolate a plant virus was:

 
 
 
 

424. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

427. Circular DNA is seen in:

 
 
 
 

428. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

430. Germ theory of disease was proposed by:

 
 
 
 

431. Where does meiosis occur in yeast?

 
 
 
 

432. In Gymnocarpeae the fruiting body is :

 
 
 
 

433. Black rust of wheat is caused by:

 
 
 
 

434. Halophiles are the bacteria that require for growth:

 
 
 
 

435. The zygospore in Rhizopus on germination forms:

 
 
 
 

436. Acetobacter is useful in:

 
 
 
 

437. The tree fern is:

 
 
 
 

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

 
 
 
 

439. Fruits are not found in:

 
 
 
 

440. Sometimes the bacterial cell is enclosed in:

 
 
 
 

441. Streptomycin is obtained from:

 
 
 
 

442. Funaria is :

 
 
 
 

443. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

444. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. Lichens reproduce by :

 
 
 
 

450. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

452. Lichens reproduce by :

 
 
 
 

453. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

455. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

457. The largest alga is:

 
 
 
 

458. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

461. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

463. Metulae are found in:

 
 
 
 

464. Desired type of Cycas can be grown by:

 
 
 
 

465. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

468. Facultative saprophyte is:

 
 
 
 

469. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

473. Embryophyta includes:

 
 
 
 

474. The Rhizopus gametes are formed in:

 
 
 
 

475. Oswald Tippo’s classification is:

 
 
 
 

476. Simple polyembryony is found in :

 
 
 
 

477. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

479. Photoautotrophic bacteria have:

 
 
 
 

480. Saccharomyces ludwigii ascus produces:

 
 
 
 

481. Germination of the seed of Pinus is :

 
 
 
 

482. Interferon is a:

 
 
 
 

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

 
 
 
 

484. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

486. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

492. Genetic material of TMV is:

 
 
 
 

493. Which is absent from the xylem of Cycas?

 
 
 
 

494. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

495. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

500. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

502. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

509. The lambda phase is a:

 
 
 
 

510. Late blight of potato is caused by :

 
 
 
 

511. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

513. The source of litmus is :

 
 
 
 

514. The disease symptom necrosis refers to :

 
 
 
 

515. Total parasites belong to:

 
 
 
 

516. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

519. Ovary is absent in:

 
 
 
 

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

 
 
 
 

521. Methanogens belong to:

 
 
 
 

522. The sporangia of Selaginella are attached:

 
 
 
 

523. Funaria are commonly found :

 
 
 
 

524. Viruses have:

 
 
 
 

525. The disease apple scab is caused by:

 
 
 
 

526. The smallest bacterium is:

 
 
 
 

527. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. Viruses are considered to be:

 
 
 
 

533. The archegonia in Selaginella develop on:

 
 
 
 

534. Funaria is a Bryophyta because :

 
 
 
 

535. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

537. Yeast grows more rapidly in:

 
 
 
 

538. Penicillin is obtained from:

 
 
 
 

539. Fern prothallus is:

 
 
 
 

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

 
 
 
 

541. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

543. Rhizophore of Selaginella is:

 
 
 
 

544. Bacteriophage consists of:

 
 
 
 

545. Which of the following is sago palm?

 
 
 
 

546. Majority of lichens are :

 
 
 
 

547. Smallpox is caused by:

 
 
 
 

548. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

550. Meristele of fern is:

 
 
 
 

551. Ectocarpus produces:

 
 
 
 

552. Which one of the following statement is wrong?

 
 
 
 

553. LSD is:

 
 
 
 

554. Virus and bacteriophage are made-up of:

 
 
 
 

555. Cycas plant in appearance resembles :

 
 
 
 

556. Bryophyta have been placed in cryptogams because:

 
 
 
 

557. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

563. In Herpes virus DNA is:

 
 
 
 

564. Which is a redwood tree?

 
 
 
 

565. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

569. Which bacteria convert nitrate into nitrogen?

 
 
 
 

570. The leaves of Funaria are :

 
 
 
 

571. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

573. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

575. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

577. Wine turns sour because of:

 
 
 
 

578. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

580. Vascular cryptogam is the term used for :

 
 
 
 

581. Why is Cycas called a living fossil?

 
 
 
 

582. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

584. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

587. Photosynthetic protists belong to:

 
 
 
 

588. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

595. Which of the following is true for Selaginella?

 
 
 
 

596. Bivalved siliceous shell or frustule occur in:

 
 
 
 

597. In moss, conducting tissue is made up of

 
 
 
 

598. Iodine is obtained from :

 
 
 
 

599. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

604. 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:

 
 
 
 

605. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

607. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

609. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

611. Most resistant spore in bacteria is:

 
 
 
 

612. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

614. Amoeba is a member of the phylum:

 
 
 
 

615. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

617. Which is an edible fungus?

 
 
 
 

618. In Selaginella, the microsporangia are:

 
 
 
 

619. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

621. Ovules are not found enclosed in ovary in :

 
 
 
 

622. The young leaves of Cycas have :

 
 
 
 

623. The gametophyte of fern bears:

 
 
 
 

624. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

628. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

631. 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:

 
 
 
 

632. Discovery of penicillin was based on:

 
 
 
 

633. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

639. The sporangium of fern contains nearly:

 
 
 
 

640. Gymnosperms could also be called as:

 
 
 
 

641. Usually, bacteria reproduce by:

 
 
 
 

642. Yeast is a source of:

 
 
 
 

643. Which of the following does not contain chlorophyll?

 
 
 
 

644. Sleeping sickness disease in man is caused by:

 
 
 
 

645. What is a vector?

 
 
 
 

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

 
 
 
 

647. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

650. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

652. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

653. Cocci types of bacteria are:

 
 
 
 

654. The zoospores of Ulothrix are :

 
 
 
 

655. The sporangiophores in Rhizopus are:

 
 
 
 

656. Funaria is :

 
 
 
 

657. Protistan algae obtain their food as:

 
 
 
 

658. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

660. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

662. Pinus is:

 
 
 
 

663. The tallest moss in the world is :

 
 
 
 

664. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

667. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

669. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

676. What is mycorrhiza?

 
 
 
 

677. Ergot is obtained from :

 
 
 
 

678. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

680. Cycas is :

 
 
 
 

681. Bacteria are found everywhere, except:

 
 
 
 

682. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

687. Most common type of conjugation in Spirogyra is :

 
 
 
 

688. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

691. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

693. The fungi are mostly:

 
 
 
 

694. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

696. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

698. Zoogametes are not found in:

 
 
 
 

699. 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?

 
 
 
 

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

 
 
 
 

701. In moss, calyptra is formed from:

 
 
 
 

702. 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:

 
 
 
 

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

 
 
 
 

704. The Rhizopus is:

 
 
 
 

705. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

707. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

709. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

711. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

716. The lichens growing on rocks are called :

 
 
 
 

717. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

718. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

721. Mycoplasma are sensitive to:

 
 
 
 

722. Little leaf disease of Brinjal is caused by:

 
 
 
 

723. Which is not found in bacteria?

 
 
 
 

724. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

726. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

727. What is the role of nitrifying bacteria?

 
 
 
 

728. Cell walls of Gram-positive bacteria contain:

 
 
 
 

729. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

731. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

733. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

736. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

738. Disease resistant plant varieties can be produced by :

 
 
 
 

739. The chief characteristic of class Ascomycetes is:

 
 
 
 

740. Which is not true for Escherichia coli?

 
 
 
 

741. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

743. Who named prion?

 
 
 
 

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

 
 
 
 

745. The gametophyte of fern is as:

 
 
 
 

746. Pasteurization of milk involves heating for:

 
 
 
 

747. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

749. Which of the following is true for viruses?

 
 
 
 

750. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

752. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

754. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

756. Pollination drop is:

 
 
 
 

757. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

759. Most primitive kind of flower is represented by:

 
 
 
 

760. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

762. Yeast belongs to class:

 
 
 
 

763. Water bloom is generally caused by :

 
 
 
 

764. Generic name of mango is:

 
 
 
 

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

 
 
 
 

766. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. Iodine is obtained from:

 
 
 
 

770. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

774. Lichens are ecologically important because :

 
 
 
 

775. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

780. Ovary is absent in :

 
 
 
 

781. Pseudomycelium is found in:

 
 
 
 

782. 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:

 
 
 
 

783. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

785. Longest known virus is:

 
 
 
 

786. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

788. What is absent in Deuteromycetes?

 
 
 
 

789. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

791. Which condition is found in Cycas?

 
 
 
 

792. Smut of maize is caused by :

 
 
 
 

793. In Pteris, the roots are:

 
 
 
 

794. Typhoid in man is caused by:

 
 
 
 

795. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

797. The chief characteristic of bryophyta is that :

 
 
 
 

798. Anoxygenic photosynthesis occurs in:

 
 
 
 

799. Leprosy is caused by:

 
 
 
 

800. The sori in Dryopteris are found on:

 
 
 
 

801. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

802. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

804. Plasmids are:

 
 
 
 

805. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

807. Botulinum toxin effects:

 
 
 
 

808. The prothallus of fern represents the plant:

 
 
 
 

809. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

811. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

814. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

818. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

820. Special feature of pollen grains of Pinus is :

 
 
 
 

821. Pteridophytes are also known as :

 
 
 
 

822. Woody climbers are known as :

 
 
 
 

823. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

825. Pinus microsporophyll bears:

 
 
 
 

826. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

829. The ascus of yeast contains:

 
 
 
 

830. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. What are Cyanobacteria?

 
 
 
 

834. Some bacteria cannot be killed easily because of:

 
 
 
 

835. Liverworts are included in :

 
 
 
 

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

 
 
 
 

837. Lichens form the first community in

 
 
 
 

838. The seedless plants which possess vascular tissues are:

 
 
 
 

839. Pythium debaryanum is the causative agent of:

 
 
 
 

840. In Funaria, calyptra is derived from :

 
 
 
 

841. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

845. Black rust of wheat is caused by:

 
 
 
 

846. Among the algae kelps are :

 
 
 
 

847. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

852. Saccharomyces is used in:

 
 
 
 

853. Cyathia is characterized by:

 
 
 
 

854. Broad spectrum antibiotic is, which:

 
 
 
 

855. Etiology includes the study of :

 
 
 
 

856. The genetic material of poxvirus is:

 
 
 
 

857. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

860. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

862. Parmelia belongs to :

 
 
 
 

863. Black rust of wheat is caused by:

 
 
 
 

864. Citrus canker is caused by :