Quiz_Random

1. Usually, bacteria reproduce by:

 
 
 
 

2. Pasteurization of milk involves heating for:

 
 
 
 

3. The young leaves of Cycas have :

 
 
 
 

4. Male gametes in Dryopteris are:

 
 
 
 

5. Heterocysts are found in :

 
 
 
 

6. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

9. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

10. What is streptomycin?

 
 
 
 

11. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Protistan algae obtain their food as:

 
 
 
 

15. The tallest moss in the world is :

 
 
 
 

16. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

17. The alga, Spirogyra are found in :

 
 
 
 

18. Which of the following is true for Selaginella?

 
 
 
 

19. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

21. Ethylene oxide is widely used to:

 
 
 
 

22. The Rhizopus is:

 
 
 
 

23. Metulae are found in:

 
 
 
 

24. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

26. Most primitive embryophytes are placed in:

 
 
 
 

27. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

29. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

38. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Black rust of wheat is caused by:

 
 
 
 

43. All algae have:

 
 
 
 

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

 
 
 
 

45. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

47. Fern plants are:

 
 
 
 

48. Photosynthetic bacteria have:

 
 
 
 

49. Facultative parasite is:

 
 
 
 

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

 
 
 
 

51. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

55. Circular DNA is seen in:

 
 
 
 

56. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

57. Late blight of potato is caused by :

 
 
 
 

58. The disease symptom necrosis refers to :

 
 
 
 

59. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

61. Which of the following is a monocot?

 
 
 
 

62. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

64. Lichens reproduce by :

 
 
 
 

65. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

68. Green plants are classified as :

 
 
 
 

69. Roots are absent in :

 
 
 
 

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

 
 
 
 

71. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Oswald Tippo’s classification was based on :

 
 
 
 

75. Heterosporous pteridophytes always form:

 
 
 
 

76. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

83. The zygospore in Rhizopus on germination forms:

 
 
 
 

84. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

86. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

88. Cycas is :

 
 
 
 

89. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

91. Liverworts are included in :

 
 
 
 

92. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. Which of the following have algal zone?

 
 
 
 

97. Virus and bacteriophage are made-up of:

 
 
 
 

98. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

100. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

105. Which is an edible fungus?

 
 
 
 

106. The development of sporangium in Selaginella is:

 
 
 
 

107. Most primitive kind of flower is represented by:

 
 
 
 

108. Cleavage polyembryony is found in :

 
 
 
 

109. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

115. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. Selaginella differs from Moss in having:

 
 
 
 

119. Antibiotics cure the disease by:

 
 
 
 

120. The fungi that grow on wood are called:

 
 
 
 

121. Which is a fungicide?

 
 
 
 

122. Mycoplasmas are not viruses in nature because:

 
 
 
 

123. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

125. Ovary is absent in :

 
 
 
 

126. Aflatoxin is produced by:

 
 
 
 

127. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

129. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

131. The spur of Pinus roxburghii has :

 
 
 
 

132. 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:

 
 
 
 

133. Red rot of sugarcane is caused by:

 
 
 
 

134. Which of the following is sago palm?

 
 
 
 

135. Maximum diversity of life forms occurs in :

 
 
 
 

136. Lichens are indicators of :

 
 
 
 

137. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. 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:

 
 
 
 

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

 
 
 
 

143. Economic importance of bacteria lies in their being:

 
 
 
 

144. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

148. The root nodules of leguminous plants contain:

 
 
 
 

149. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

151. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

154. Chief constituents of bordeaux mixture are :

 
 
 
 

155. In moss, conducting tissue is made up of

 
 
 
 

156. Who among the following discovered virus?

 
 
 
 

157. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

159. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

164. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

169. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

172. The roots of Cycas are :

 
 
 
 

173. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

175. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

178. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

180. Streptomyces falls under:

 
 
 
 

181. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

185. Pythium debaryanum is the causative agent of:

 
 
 
 

186. Bryophyta have a special character from other plants:

 
 
 
 

187. Club moss is the common name of :

 
 
 
 

188. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

190. The stele of Dryopteris is a:

 
 
 
 

191. TMV was isolated in crystalline form by:

 
 
 
 

192. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

194. What is the role of nitrifying bacteria?

 
 
 
 

195. Cyanophage is a virus that attacks:

 
 
 
 

196. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. The sporangium of fern contains nearly:

 
 
 
 

204. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

206. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

208. Pollination drop is:

 
 
 
 

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

 
 
 
 

210. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

212. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

215. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. Which of the following does not contain chlorophyll?

 
 
 
 

221. Endemic plants are characterised by their:

 
 
 
 

222. Ginkgo biloba is a:

 
 
 
 

223. Generic name of mango is:

 
 
 
 

224. Little leaf disease of Brinjal is caused by:

 
 
 
 

225. The prothallus of fern is:

 
 
 
 

226. Soil fertility is lost by the activities of:

 
 
 
 

227. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

229. Lichen show :

 
 
 
 

230. NBG of Lucknow is now named as:

 
 
 
 

231. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

234. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

236. Wine turns sour because of:

 
 
 
 

237. In Gymnosperms endosperm is a:

 
 
 
 

238. Mycoplasma are sensitive to:

 
 
 
 

239. The sori in Dryopteris are found on:

 
 
 
 

240. Ergot is obtained from :

 
 
 
 

241. Diploxylic vascular bundles are found in:

 
 
 
 

242. Pythium debaryanum is the causative agent of:

 
 
 
 

243. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

245. The Rhizopus gametes are formed in:

 
 
 
 

246. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. In a diplontic life cycle:

 
 
 
 

251. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

253. Mycoplasma are:

 
 
 
 

254. Winged seeds are found in :

 
 
 
 

255. The mode of nutrition of bacteria is usually:

 
 
 
 

256. Where does meiosis occur in yeast?

 
 
 
 

257. Ovules are not found enclosed in ovary in :

 
 
 
 

258. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

260. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

265. Water-net is the name of:

 
 
 
 

266. What are Cyanobacteria?

 
 
 
 

267. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

269. Which is a tautonym?

 
 
 
 

270.

271. The prothallus of fern represents the plant:

 
 
 
 

272. Some bacteria cannot be killed easily because of:

 
 
 
 

273. Who discovered cyanophages?

 
 
 
 

274. Funaria are commonly found :

 
 
 
 

275. The male gametes of Pinus are :

 
 
 
 

276. Ovary is absent in:

 
 
 
 

277. The DNA of E coli is:

 
 
 
 

278. Which organisms are the oldest life forms?

 
 
 
 

279. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

280. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

282. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

284. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

286. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

289. The sexual reproductive organs in Rhizopus are:

 
 
 
 

290. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

292. Viruses are considered to be:

 
 
 
 

293. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

296. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

298. Fern prothallus is:

 
 
 
 

299. The chromosomal number in:

 
 
 
 

300. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

303. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

308. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

310. Lichens are ecologically important because :

 
 
 
 

311. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

314. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319.

320. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

324. The chloroplast of Chlamydomonas are:

 
 
 
 

325. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

327. Ovules are not found enclosed in ovary in :

 
 
 
 

328. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

330. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

332. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

334. In Pteris, the archegonia are present:

 
 
 
 

335.

336. Fruiting body of lichens is :

 
 
 
 

337. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

339. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

341. All protozoans possess:

 
 
 
 

342. In Cycas:

 
 
 
 

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

 
 
 
 

344. In Funaria :

 
 
 
 

345. Cryptogams include :

 
 
 
 

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

 
 
 
 

347. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

348. Sometimes the bacterial cell is enclosed in:

 
 
 
 

349. Protists which are diploid reproduce sexually by:

 
 
 
 

350. Among the algae kelps are :

 
 
 
 

351. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

354. Which of the following is true for viruses?

 
 
 
 

355. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

357. Green plants are classified as:

 
 
 
 

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

 
 
 
 

359. Pinus is:

 
 
 
 

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

 
 
 
 

361. Desired type of Cycas can be grown by:

 
 
 
 

362. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

364. Embryophyta includes :

 
 
 
 

365. 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:

 
 
 
 

366. LSD is:

 
 
 
 

367. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

371. 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:

 
 
 
 

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

 
 
 
 

373. Diphtheria is caused by:

 
 
 
 

374. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

376. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

378. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

380. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

382. Spirogyra represents the :

 
 
 
 

383. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

385. Antibiotic has been extracted from :

 
 
 
 

386. In moss, stomata are found:

 
 
 
 

387. The gametophyte of moss has distinct phases :

 
 
 
 

388. Which of the following are included in Tracheophyta?

 
 
 
 

389. The largest alga is:

 
 
 
 

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

 
 
 
 

391. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

398. Yeast grows more rapidly in:

 
 
 
 

399. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

401. Iodine is obtained from:

 
 
 
 

402. Which class of Protozoa includes all parasitic forms?

 
 
 
 

403. The seedless plants which possess vascular tissues are:

 
 
 
 

404. Interferon is a:

 
 
 
 

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

 
 
 
 

406. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

408. Heterospory and ligulate leaves are a feature of:

 
 
 
 

409. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Most of the algae are :

 
 
 
 

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

 
 
 
 

415. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

417. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

419. Genetic material of TMV is:

 
 
 
 

420. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

422. The lambda phase is a:

 
 
 
 

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

 
 
 
 

424. The first to isolate a plant virus was:

 
 
 
 

425. Sexual reproduction of lichen is due to :

 
 
 
 

426. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

428. Standard size of a herbarium sheet is:

 
 
 
 

429. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

431. Select the wrong statement:

 
 
 
 

432. Linnaeus is credited with introducing:

 
 
 
 

433. Ulothrix produces :

 
 
 
 

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

 
 
 
 

435. Placenta in fern is:

 
 
 
 

436. Enzymes are absent in:

 
 
 
 

437. Who named prion?

 
 
 
 

438. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

440. Pollination in Cycas takes place by :

 
 
 
 

441. What are plasmids?

 
 
 
 

442. Cycas is different from mango in :

 
 
 
 

443. Pseudomycelium is found in:

 
 
 
 

444. In binomial system most of the words are:

 
 
 
 

445. 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:

 
 
 
 

446. The development of Selaginella embryo is:

 
 
 
 

447. Woody climbers are known as :

 
 
 
 

448. Azolla growing in paddy fields helps in:

 
 
 
 

449. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

451. Funaria is :

 
 
 
 

452. Reserve food in Euglena is:

 
 
 
 

453. The megaspore of Selaginella on germination produces:

 
 
 
 

454. The microsporophylls on the cone of Cycas are :

 
 
 
 

455. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

457. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

459. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

461. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

463. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

467. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

469. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

470. Iodine is obtained from :

 
 
 
 

471. In moss, calyptra is formed from:

 
 
 
 

472. Embryo formation is not known in :

 
 
 
 

473. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

481. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

483. Sporophyte of Funaria is :

 
 
 
 

484. The tree fern is:

 
 
 
 

485. Kuru, a human disease is caused by:

 
 
 
 

486. Which lichen is called Reindeer moss?

 
 
 
 

487. John Hutchinson divided dicots into two divisions:

 
 
 
 

488. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

490. Cycas plant in appearance resembles :

 
 
 
 

491. Spirogyra differs from moss protonema in having :

 
 
 
 

492. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

494. What is a vector?

 
 
 
 

495. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

502. Funaria can be differentiated from Cycas :

 
 
 
 

503. Lichens reproduce by :

 
 
 
 

504. The nucleus of bacteria is:

 
 
 
 

505. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

510. Fruits are not found in :

 
 
 
 

511. The ferns are usually found:

 
 
 
 

512. The mycelium of Rhizopus is:

 
 
 
 

513. Which of the following statements is not correct?

 
 
 
 

514. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

516. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

518. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

520. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

522. An Hfr bacterium is one that contains:

 
 
 
 

523. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

525. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

527. In a bacteriophage, DNA is present in:

 
 
 
 

528. Reproduction in Cycas takes place by :

 
 
 
 

529. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

531. The fungi used as food are:

 
 
 
 

532. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

534. Saccharomyces is well known for:

 
 
 
 

535. Vascular cryptogam is the term used for :

 
 
 
 

536. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

538. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

539. Pteridophytes are also known as :

 
 
 
 

540. Sleeping sickness disease in man is caused by:

 
 
 
 

541. Meristele of fern is:

 
 
 
 

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

 
 
 
 

543. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

545. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

547. Yeast belongs to class:

 
 
 
 

548. Lichens form the first community in

 
 
 
 

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

 
 
 
 

550. Water bloom is generally caused by :

 
 
 
 

551. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

553. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

555. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

556. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

558. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

564. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

569. In moss, peristomial teeth are:

 
 
 
 

570. In Pteris, the roots are:

 
 
 
 

571. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

572. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

574. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

576. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

577. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

579. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

581. 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?

 
 
 
 

582. Cycas is similar to a mustard plant :

 
 
 
 

583. Embryophyta includes:

 
 
 
 

584. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

586. White rust of crucifers is caused by:

 
 
 
 

587. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

589. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

591. Bacteriophages have been used as:

 
 
 
 

592. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

594. Leaf spot of groundnut is caused by :

 
 
 
 

595. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

596. Which one of the following statement is wrong?

 
 
 
 

597. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

599. Most resistant spore in bacteria is:

 
 
 
 

600. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

604. Which of the following lichens is harmful?

 
 
 
 

605. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

607. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

609. Rice, pea, potato are :

 
 
 
 

610. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

612. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

618. Which is a gametophytic tissue?

 
 
 
 

619. Which bacteria convert nitrate into nitrogen?

 
 
 
 

620. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

622. Cap cells are found in the filament of:

 
 
 
 

623. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

626. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

628. In Gymnocarpeae the fruiting body is :

 
 
 
 

629. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

631. Saccharomyces is used in:

 
 
 
 

632. Select the wrong statement:

 
 
 
 

633. The middle sterile part of capsule is called:

 
 
 
 

634. Methanogens belong to:

 
 
 
 

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

 
 
 
 

636. Vascular tissue is found in :

 
 
 
 

637. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

641. In Selaginella, the microsporangia are:

 
 
 
 

642. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

644. Zoogametes are not found in:

 
 
 
 

645. Pasteur is famous for his:

 
 
 
 

646. Banana bunchy top is caused by :

 
 
 
 

647. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

649. Chemosynthetic bacteria are:

 
 
 
 

650. Citrus canker is caused by:

 
 
 
 

651. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

653. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

656. The smallest bacterium is:

 
 
 
 

657. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. To which class Riccia belongs :

 
 
 
 

661. Facultative saprophyte is:

 
 
 
 

662. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

666. All archaebacteria lack:

 
 
 
 

667. Most of the lichens are composed of :

 
 
 
 

668. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

670. Who discovered heterothallism in fungi?

 
 
 
 

671. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

675. The truncated cone of HIV consists of:

 
 
 
 

676. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

679. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

680. Most primitive group of vascular plants are:

 
 
 
 

681. . Tapetum develops in:

 
 
 
 

682. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

685. The disease apple scab is caused by:

 
 
 
 

686. The sporangia of Selaginella are attached:

 
 
 
 

687. In Cycas microsporangia are borne on:

 
 
 
 

688. Photosynthetic protists belong to:

 
 
 
 

689. Gram stain is used to:

 
 
 
 

690. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

692. Some diseases caused by bacteria are:

 
 
 
 

693. Bacteria are placed under:

 
 
 
 

694. In moss, reduction division occurs in :

 
 
 
 

695. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

699. Simple polyembryony is found in :

 
 
 
 

700. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

707. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

710. Disease resistant plant varieties can be produced by :

 
 
 
 

711. The lichens growing on rocks are called :

 
 
 
 

712. In tracheophyta:

 
 
 
 

713. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

715. Triple antigen injection or vaccine are for:

 
 
 
 

716. Winged pollen grains are found in :

 
 
 
 

717. 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:

 
 
 
 

718. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

720. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

722. Proembryo in Pinus is :

 
 
 
 

723. Fruits are not found in:

 
 
 
 

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

 
 
 
 

725. The chloroplast in Ulothrix is :

 
 
 
 

726. Select the correct statement: (NEET 2016)

 
 
 
 

727. The megasporangium of Selaginella is:

 
 
 
 

728. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

730. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

732. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

735. Nitrogen-fixing bacteria may be located:

 
 
 
 

736. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

738. The leafy fern plant represents the:

 
 
 
 

739. Most appropriate word for protozoans is:

 
 
 
 

740. Club moss and Peat moss belong to:

 
 
 
 

741. Yeast is a source of:

 
 
 
 

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

 
 
 
 

743. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

746. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

748. In Cycas which structure is equivalent to stamen?

 
 
 
 

749. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

751. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

760. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

761. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

766. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

768. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

772. Helotism word is used for the symbiosis between :

 
 
 
 

773. Photoautotrophic bacteria have:

 
 
 
 

774. The spermatozoids of Cycas are :

 
 
 
 

775. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

777. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

779. The coralloid roots are :

 
 
 
 

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

 
 
 
 

781. Rhizophore of Selaginella is:

 
 
 
 

782.

 

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

 
 
 
 

784. Aflatoxin is produced as a product in :

 
 
 
 

785. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

787. Which is a redwood tree?

 
 
 
 

788. The fungi are usually:

 
 
 
 

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

 
 
 
 

790. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

791. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

793. Sporophyte of fern is:

 
 
 
 

794. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. 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?

 
 
 
 

798. The chief characteristic of bryophyta is that :

 
 
 
 

799. Transfusion tissue is present in the leaflet of:

 
 
 
 

800. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

803. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

805. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

807. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

809. Azolla and Salvinia both are:

 
 
 
 

810. Rhizopus belongs to:

 
 
 
 

811. Spores of which plants have chloroplast:

 
 
 
 

812. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. Which have the largest antherozoid?

 
 
 
 

816. Psilotum is:

 
 
 
 

817. The flagella of Chlamydomonas are:

 
 
 
 

818. Mucilaginous canals in Cycas are found in :

 
 
 
 

819. Which is an exception to cell theory?

 
 
 
 

820. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

823. Lichens show :

 
 
 
 

824. The sporangiophores in Rhizopus are:

 
 
 
 

825. Pasteurized milk is:

 
 
 
 

826. The fungi are mostly:

 
 
 
 

827. The upper region of moss capsule is :

 
 
 
 

828. Cell walls of Gram-positive bacteria contain:

 
 
 
 

829. Which is the nuclear material in bacteria?

 
 
 
 

830. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

832. In Funaria, calyptra is derived from :

 
 
 
 

833. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

836. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

841. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

844. The fern plant is:

 
 
 
 

845. Vascular cryptogams is the term used for:

 
 
 
 

846. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

847. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

851. Lichens are pioneers of vegetation in a :

 
 
 
 

852. 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?

 
 
 
 

853. Bacteria were first discovered by:

 
 
 
 

854. Siphonogamy is found in:

 
 
 
 

855. Ovules are not found enclosed in ovary of:

 
 
 
 

856. Early blight of potato is caused by:

 
 
 
 

857. Polystelic condition is found in:

 
 
 
 

858. To which country Antony van Leeuwenhoek belong?

 
 
 
 

859. Climbers are found in genus:

 
 
 
 

860. Longest known virus is:

 
 
 
 

861. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

863. What is mycorrhiza?

 
 
 
 

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