Quiz_Random

1. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. Heterotrichous habit means :

 
 
 
 

5. Protistan algae obtain their food as:

 
 
 
 

6. Sexual reproduction of lichen is due to :

 
 
 
 

7. 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:

 
 
 
 

8. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

10. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

12. Enteric bacteria are those bacteria that live:

 
 
 
 

13. Protists which are diploid reproduce sexually by:

 
 
 
 

14. Viruses are considered to be:

 
 
 
 

15. Maximum diversity of life forms occurs in :

 
 
 
 

16. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

19. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. Pneumonia is caused by:

 
 
 
 

26. Heterocysts are found in :

 
 
 
 

27. Sometimes the bacterial cell is enclosed in:

 
 
 
 

28. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. 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:

 
 
 
 

36. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

38. Funaria is :

 
 
 
 

39. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

41. Bacteria are placed under:

 
 
 
 

42. The mode of nutrition of bacteria is usually:

 
 
 
 

43. Which one of the following statement is wrong?

 
 
 
 

44. An Hfr bacterium is one that contains:

 
 
 
 

45. Fruiting body of lichens is :

 
 
 
 

46. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Some diseases caused by bacteria are:

 
 
 
 

50. What is the role of nitrifying bacteria?

 
 
 
 

51. The tallest moss in the world is :

 
 
 
 

52. Transfusion tissue is present in the leaflet of:

 
 
 
 

53. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

55. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

57. The leaves of Funaria are :

 
 
 
 

58. The truncated cone of HIV consists of:

 
 
 
 

59. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

61. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

63. The leaf of Cycas shows:

 
 
 
 

64. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

66. Liverworts are included in :

 
 
 
 

67. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

69. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

74. The fungi are mostly:

 
 
 
 

75. The plants of Funaria grow :

 
 
 
 

76. Choose the correct statement about Spirogyra:

 
 
 
 

77. Lichens reproduce by :

 
 
 
 

78. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

80. The roots of Cycas are :

 
 
 
 

81. Yeast is a source of:

 
 
 
 

82. Virus and bacteriophage are made-up of:

 
 
 
 

83. Cycas is :

 
 
 
 

84. The phloem of vascular system of Cycas is :

 
 
 
 

85. The leafy fern plant represents the:

 
 
 
 

86. Pythium debaryanum is the causative agent of:

 
 
 
 

87. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

89. 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:

 
 
 
 

90. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

91. Photoautotrophic bacteria have:

 
 
 
 

92. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Pasteur is famous for his:

 
 
 
 

96. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

98. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. The root nodules of leguminous plants contain:

 
 
 
 

102. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

105. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

107. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

109. Yeast belongs to class:

 
 
 
 

110. Saccharomyces ludwigii ascus produces:

 
 
 
 

111. Milk is converted to curd by:

 
 
 
 

112. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

114. Etiology includes the study of :

 
 
 
 

115. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. Lichens form the first community in

 
 
 
 

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

 
 
 
 

124. Most primitive embryophytes are placed in:

 
 
 
 

125. The photosynthetic protists are:

 
 
 
 

126. Which group of algae have an incipient nucleus?

 
 
 
 

127. Iodine is obtained from:

 
 
 
 

128. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

129. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

131. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

134. The disease symptom necrosis refers to :

 
 
 
 

135. Green plants are classified as :

 
 
 
 

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

 
 
 
 

137. The smallest unit of classification is:

 
 
 
 

138. Nitrifying bacteria play an important role by converting:

 
 
 
 

139. The sporangium of fern contains nearly:

 
 
 
 

140. Which of the following is sago palm?

 
 
 
 

141. Lichens are ecologically important because :

 
 
 
 

142. Some bacteria cannot be killed easily because of:

 
 
 
 

143. 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?

 
 
 
 

144. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

146. Sleeping sickness disease in man is caused by:

 
 
 
 

147. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

151. Placenta in fern is:

 
 
 
 

152. Endemic plants are characterised by their:

 
 
 
 

153. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

155. Special feature of pollen grains of Pinus is :

 
 
 
 

156. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

158. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

160. Bacteria were first discovered by:

 
 
 
 

161. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

163. Desired type of Cycas can be grown by:

 
 
 
 

164. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

166. The gametophyte of fern is as:

 
 
 
 

167. The flagella of Chlamydomonas are:

 
 
 
 

168. Spirogyra represents the :

 
 
 
 

169. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

171. Roots are absent in :

 
 
 
 

172. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

175. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

181. Acetobacter is useful in:

 
 
 
 

182. Most resistant spore in bacteria is:

 
 
 
 

183. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

185. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Most of the algae are :

 
 
 
 

190. An alga which is rich in proteins:

 
 
 
 

191. Triple antigen injection or vaccine are for:

 
 
 
 

192. How a fern differs from a moss?

 
 
 
 

193. The archegonia of Selaginella are differentiated by:

 
 
 
 

194. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

197. Which of the following is true for viruses?

 
 
 
 

198. Mixed cropping helps :

 
 
 
 

199. Water-net is the name of:

 
 
 
 

200. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

202. Anoxygenic photosynthesis occurs in:

 
 
 
 

203. Which is absent from the xylem of Cycas?

 
 
 
 

204. The tree fern is:

 
 
 
 

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

 
 
 
 

206. Methanogens belong to:

 
 
 
 

207. Pinus microsporophyll bears:

 
 
 
 

208. Vascular cryptogam is the term used for :

 
 
 
 

209. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

211. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

214. Lichens show :

 
 
 
 

215. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

218. Clostridium can:

 
 
 
 

219. The seedless plants which possess vascular tissues are:

 
 
 
 

220. Gram stain is used to:

 
 
 
 

221. Select the wrong statement:

 
 
 
 

222. Penicillin is obtained from:

 
 
 
 

223. Rhizopus and yeast are usually:

 
 
 
 

224. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

228. Amoeba is a member of the phylum:

 
 
 
 

229. Acellular slime mold is/are:

 
 
 
 

230. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

232. Detailed study of bacteriophage was made by:

 
 
 
 

233. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

235. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

237. The sporangia of Selaginella are attached:

 
 
 
 

238. Pinus is:

 
 
 
 

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

 
 
 
 

240. Ovary is absent in:

 
 
 
 

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

 
 
 
 

242. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

244.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. Funaria can be differentiated from Cycas :

 
 
 
 

249. Funaria is :

 
 
 
 

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

 
 
 
 

251. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

254. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

256. The Rhizopus gametes are formed in:

 
 
 
 

257. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

258. Nannandria are:

 
 
 
 

259. Late blight of potato is caused by :

 
 
 
 

260. Funaria is a Bryophyta because :

 
 
 
 

261. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

265. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

268. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

271. Saccharomyces is well known for:

 
 
 
 

272. The zoospores of Ulothrix are :

 
 
 
 

273. Ginkgo biloba is a:

 
 
 
 

274. Leaf spot of groundnut is caused by :

 
 
 
 

275. Among the algae kelps are :

 
 
 
 

276. Tautonyms are illegitimate in:

 
 
 
 

277. Bryophyta have a special character from other plants:

 
 
 
 

278. Centric discoid form of diatom is:

 
 
 
 

279. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. Enzymes are absent in:

 
 
 
 

284. The most important property of yeast is:

 
 
 
 

285. Which statement is wrong in regard to bacteria?

 
 
 
 

286. The fungi that grow on wood are called:

 
 
 
 

287. The teeth of peristome of Funaria are :

 
 
 
 

288. Ovary is absent in :

 
 
 
 

289. Sporophyte of Funaria is :

 
 
 
 

290. Citrus canker is caused by :

 
 
 
 

291. Diploxylic vascular bundles are found in:

 
 
 
 

292. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

296. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

298. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

301. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

304. The two conjugating gametangia of Rhizopus are:

 
 
 
 

305. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

307. Which is a fungicide?

 
 
 
 

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

 
 
 
 

309. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

317. Chief constituents of bordeaux mixture are :

 
 
 
 

318. Spirogyra differs from moss protonema in having :

 
 
 
 

319. What is absent in Deuteromycetes?

 
 
 
 

320. Standard size of a herbarium sheet is:

 
 
 
 

321. Fern plants are:

 
 
 
 

322. Genetic material of TMV is:

 
 
 
 

323. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

327. 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?

 
 
 
 

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

 
 
 
 

329. Cell walls of Gram-positive bacteria contain:

 
 
 
 

330. In Pteris, the roots are:

 
 
 
 

331. Who discovered streptomycin?

 
 
 
 

332. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. Ectocarpus produces:

 
 
 
 

336. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

340. Black rust of wheat is caused by:

 
 
 
 

341. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

342. Rhizophore of Selaginella is:

 
 
 
 

343. Asexual reproductive body of Volvox is called:

 
 
 
 

344. Pollination drop is:

 
 
 
 

345. Embryophyta includes :

 
 
 
 

346. The sexual reproductive organs in Rhizopus are:

 
 
 
 

347. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

350. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

352. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. The zygospore in Rhizopus on germination forms:

 
 
 
 

356. Fruits are not found in :

 
 
 
 

357. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

360. Germ theory of disease was proposed by:

 
 
 
 

361. Which lichen is called Reindeer moss?

 
 
 
 

362. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

364. The chief characteristic of class Ascomycetes is:

 
 
 
 

365. Photosynthetic protists belong to:

 
 
 
 

366. Generic name of mango is:

 
 
 
 

367. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

369. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

371. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

373. . Tapetum develops in:

 
 
 
 

374. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

376. The largest known bacterium is:

 
 
 
 

377. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

381. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

383. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

385. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

386. How is moss different from fern?

 
 
 
 

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

 
 
 
 

388. The sori in Dryopteris are found on:

 
 
 
 

389. Climbers are found in genus:

 
 
 
 

390. Cryptogams include :

 
 
 
 

391. Which of the following statements is not correct?

 
 
 
 

392. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

394. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

396. Mycoplasma is different from bacteria due to:

 
 
 
 

397. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

399. Vascular cryptogams is the term used for:

 
 
 
 

400. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

403. Linnaeus is credited with introducing:

 
 
 
 

404. In moss, calyptra is formed from:

 
 
 
 

405. All protozoans possess:

 
 
 
 

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

 
 
 
 

407. Fern prothallus is:

 
 
 
 

408. Banana bunchy top is caused by :

 
 
 
 

409. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

411. In moss, reduction division occurs in :

 
 
 
 

412. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

414. Which organisms are the oldest life forms?

 
 
 
 

415. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

418. Most common type of conjugation in Spirogyra is :

 
 
 
 

419. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

421. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

426. Circular DNA is seen in:

 
 
 
 

427. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

430. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

432. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

433. Which is the nuclear material in bacteria?

 
 
 
 

434. Which is a redwood tree?

 
 
 
 

435. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

440. Each chloroplast in Spirogyra bears :

 
 
 
 

441. Mostly type of zygospore in Ulothrix is:

 
 
 
 

442. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. Quarantine regulations are concerned with:

 
 
 
 

450. In tracheophyta:

 
 
 
 

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

 
 
 
 

452. Reproduction in Rhizopus is:

 
 
 
 

453. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

457. Viroids have:

 
 
 
 

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

 
 
 
 

459. In dinoflagellates, the two flagella are:

 
 
 
 

460. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

461. 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:

 
 
 
 

462. The fungi are usually:

 
 
 
 

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

 
 
 
 

464. Bacteriophage consists of:

 
 
 
 

465. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

467. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

470. Plasmids are:

 
 
 
 

471. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

473. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

479. The gametophyte of fern bears:

 
 
 
 

480. Bacteriophages have been used as:

 
 
 
 

481. The upper region of moss capsule is :

 
 
 
 

482. Most of the lichens are composed of :

 
 
 
 

483. Lichen show :

 
 
 
 

484. Which of the following is true for Selaginella?

 
 
 
 

485. Which of the following shows heterotrichous habit?

 
 
 
 

486. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

488. Ulothrix produces :

 
 
 
 

489. Which of the following are absent in Mycoplasma?

 
 
 
 

490. The development of Selaginella embryo is:

 
 
 
 

491. Green plants are classified as:

 
 
 
 

492. Photosynthetic bacteria have:

 
 
 
 

493. Water bloom is generally caused by :

 
 
 
 

494. Ovules are not found enclosed in ovary of:

 
 
 
 

495.

 

496. Chemosynthetic bacteria are:

 
 
 
 

497. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

499. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

503. 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:

 
 
 
 

504. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. Longest known virus is:

 
 
 
 

508. Meristele of fern is:

 
 
 
 

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

 
 
 
 

510. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

517. In Pteris, the archegonia are present:

 
 
 
 

518. Spores of which plants have chloroplast:

 
 
 
 

519. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

522. Mucilaginous canals in Cycas are found in :

 
 
 
 

523. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

525. The chromosomal number in:

 
 
 
 

526. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

528. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. What is streptomycin?

 
 
 
 

533. Which causes red tide?

 
 
 
 

534. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

539. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

541. Which is a tautonym?

 
 
 
 

542. Cyathia is characterized by:

 
 
 
 

543. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

546. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

548. Discovery of penicillin was based on:

 
 
 
 

549. In a diplontic life cycle:

 
 
 
 

550. Embryophyta includes:

 
 
 
 

551. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

554. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

557. Which of the following is a heterosporous pteridophyte?

 
 
 
 

558. The archegonia in Selaginella develop on:

 
 
 
 

559. LSD is:

 
 
 
 

560. Which bacteria convert nitrate into nitrogen?

 
 
 
 

561. Lichens are pioneers of vegetation in a :

 
 
 
 

562. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

566. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

568. E coli is a:

 
 
 
 

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

 
 
 
 

570. Winged seeds are found in :

 
 
 
 

571. Cleavage polyembryony is found in :

 
 
 
 

572. Sexual reproduction in Rhizopus is by:

 
 
 
 

573. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

577. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

579. Water-borne bacterial diseases are:

 
 
 
 

580. Who among the following discovered virus?

 
 
 
 

581. Seeds are characteristically found in:

 
 
 
 

582. Viruses are commonly transmitted in plants through:

 
 
 
 

583. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

588. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

590. What is mycorrhiza?

 
 
 
 

591. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

596. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

599. Majority of lichens are :

 
 
 
 

600. Who discovered cyanophages?

 
 
 
 

601. The stele of Dryopteris is a:

 
 
 
 

602. The megasporangium of Selaginella is:

 
 
 
 

603. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

605. Botulinum toxin effects:

 
 
 
 

606. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

609. Lichens are the indicator of pollution :

 
 
 
 

610. What is a vector?

 
 
 
 

611. Ovules are not found enclosed in ovary in :

 
 
 
 

612. The term stele was given by:

 
 
 
 

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

 
 
 
 

614. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

616. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

621. Why is Cycas called a living fossil?

 
 
 
 

622. In a bacteriophage, DNA is present in:

 
 
 
 

623. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

626. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

629. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

631. Psilotum is:

 
 
 
 

632. Facultative saprophyte is:

 
 
 
 

633. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

635. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

641. Isomorphic type alternation of generation is found in:

 
 
 
 

642. In moss, peristomial teeth are:

 
 
 
 

643. Fern phloem lacks:

 
 
 
 

644. Early blight of potato is caused by:

 
 
 
 

645. The fern plant is:

 
 
 
 

646. The similarity between cyanobacteria and bacteria:

 
 
 
 

647. The lambda phase is a:

 
 
 
 

648. Cycas is similar to a mustard plant :

 
 
 
 

649. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

652. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

656. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

659. Spermatophyta are characterized by producing:

 
 
 
 

660. In moss, sporogenous tissue arises from:

 
 
 
 

661. The development of sporangium in Selaginella is:

 
 
 
 

662. Fruits are not found in:

 
 
 
 

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

 
 
 
 

664. The antibiotic is obtained from:

 
 
 
 

665. The genetic material of poxvirus is:

 
 
 
 

666. In angiosperms double fertilization represents:

 
 
 
 

667. The most primitive vascular plants is:

 
 
 
 

668. Where does meiosis occur in yeast?

 
 
 
 

669. Broad spectrum antibiotic is, which:

 
 
 
 

670. Saccharomyces is used in:

 
 
 
 

671. Fern prothallus produces:

 
 
 
 

672. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

679. Facultative parasite is:

 
 
 
 

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

 
 
 
 

681. Cap cells are found in the filament of:

 
 
 
 

682. Kuru, a human disease is caused by:

 
 
 
 

683. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

687. Ovules are not found enclosed in ovary in :

 
 
 
 

688. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

690. Which is not true for Escherichia coli?

 
 
 
 

691. Bacteria are considered to be plants because they:

 
 
 
 

692. True sexuality is not found in:

 
 
 
 

693. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

695. In Funaria :

 
 
 
 

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

 
 
 
 

697. Which of the following have a prokaryotic cell?

 
 
 
 

698. Soil fertility is lost by the activities of:

 
 
 
 

699. Embryo formation is not known in :

 
 
 
 

700. What are plasmids?

 
 
 
 

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

 
 
 
 

702. The rhizoids of Funaria are :

 
 
 
 

703. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

704. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

708. One of the distinctive feature of Spirogyra is :

 
 
 
 

709. Pasteurization of milk involves heating for:

 
 
 
 

710. Who discovered heterothallism in fungi?

 
 
 
 

711. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

717. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

719. Funaria are commonly found :

 
 
 
 

720. Select the correct statement: (NEET 2016)

 
 
 
 

721. What are Cyanobacteria?

 
 
 
 

722. Gametophyte is the main plant body in :

 
 
 
 

723. Pteridophytes are also known as :

 
 
 
 

724.

725. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

727. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

730. Pollination in Pinus is :

 
 
 
 

731. The vascular bundles of Cycas stem are :

 
 
 
 

732. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

733. Male gametophyte of Selaginella is found:

 
 
 
 

734. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

736. Bentham and Hooker placed gymnosperms:

 
 
 
 

737. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

738. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

739. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

740. Which among the following is a shrub?

 
 
 
 

741. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

745. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

748. Wine turns sour because of:

 
 
 
 

749. Simple polyembryony is found in :

 
 
 
 

750. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

756. Diphtheria is caused by:

 
 
 
 

757. Chemosynthetic bacteria are:

 
 
 
 

758. Interferon is a:

 
 
 
 

759. The ferns are usually found:

 
 
 
 

760. Antibiotic has been extracted from :

 
 
 
 

761. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

763. The fungi used as food are:

 
 
 
 

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

 
 
 
 

765. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

767. Cycas is:

 
 
 
 

768. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

770. Most primitive group of vascular plants are:

 
 
 
 

771. Meiosis in Ulothrix takes place:

 
 
 
 

772. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

774. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

776. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

778. 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?

 
 
 
 

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

 
 
 
 

780. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

782. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

784. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

788. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

791. The group algae possesses representatives belonging to kingdom:

 
 
 
 

792. Spermatophyta are characterized by producing:

 
 
 
 

793. Mycoplasma are:

 
 
 
 

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

 
 
 
 

795. Lichens reproduce by :

 
 
 
 

796. Which of the following lichens is harmful?

 
 
 
 

797. The leaves of Funaria are :

 
 
 
 

798. Winged pollen grains are found in :

 
 
 
 

799. The middle sterile part of capsule is called:

 
 
 
 

800. Synzoospore is produced in:

 
 
 
 

801. 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?

 
 
 
 

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

 
 
 
 

803. Botulism is a:

 
 
 
 

804. Which of the following are included in Tracheophyta?

 
 
 
 

805. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

807. In Herpes virus DNA is:

 
 
 
 

808. Pseudomycelium is found in:

 
 
 
 

809. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

812. Cocci types of bacteria are:

 
 
 
 

813. Male gametes in Dryopteris are:

 
 
 
 

814. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

816. Which of the following is a monocot?

 
 
 
 

817. Reserve food in Euglena is:

 
 
 
 

818. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

819. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

821. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

823. The role of meiosis is for:

 
 
 
 

824. All algae have:

 
 
 
 

825.

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

 
 
 
 

827. The spermatozoids of Cycas are :

 
 
 
 

828. To which class Riccia belongs :

 
 
 
 

829. In Gymnocarpeae the fruiting body is :

 
 
 
 

830. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

836. Siphonogamy is found in:

 
 
 
 

837. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

839. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. 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:

 
 
 
 

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

 
 
 
 

845. In Cycas:

 
 
 
 

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

 
 
 
 

847. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

851. The ascus of yeast contains:

 
 
 
 

852. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

857. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

859. The gametophyte produced by apospory is :

 
 
 
 

860. Some biologists have used the term Mycetozoa for:

 
 
 
 

861. Black rust of wheat is caused by:

 
 
 
 

862. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

864. Indusium in Dryopteris is: