Quiz_Random

1. Lichens form the first community in

 
 
 
 

2. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. The Rhizopus is:

 
 
 
 

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

 
 
 
 

7. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

9. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

11. Longest known virus is:

 
 
 
 

12. Heterosporous pteridophytes always form:

 
 
 
 

13. Ovary is absent in:

 
 
 
 

14. Smut of maize is caused by :

 
 
 
 

15. Methanogens belong to:

 
 
 
 

16. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

17. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. The gametophyte of fern bears:

 
 
 
 

21. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

23. Roots are absent in :

 
 
 
 

24. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Which group of algae have an incipient nucleus?

 
 
 
 

28. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. TMV was isolated in crystalline form by:

 
 
 
 

33. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

35. Which of the following applies to Selaginella?

 
 
 
 

36. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

38. Cycas is :

 
 
 
 

39. LSD is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

44. In Selaginella, the microsporangia are:

 
 
 
 

45. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

50. Cycas is:

 
 
 
 

51. Rhizophore of Selaginella is:

 
 
 
 

52. Funaria are commonly found :

 
 
 
 

53. To which class Riccia belongs :

 
 
 
 

54. In tracheophyta:

 
 
 
 

55. The seedless plants which possess vascular tissues are:

 
 
 
 

56. What are plasmids?

 
 
 
 

57. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

58. Fern phloem lacks:

 
 
 
 

59. The leafy fern plant represents the:

 
 
 
 

60. Which one of the following is a monocot?

 
 
 
 

61. Saccharomyces ludwigii ascus produces:

 
 
 
 

62. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

69. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. The nucleus of bacteria is:

 
 
 
 

73. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

75. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

77. Liverworts are included in :

 
 
 
 

78. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. Etiology includes the study of :

 
 
 
 

89. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

91.

92. White rust of crucifers is caused by:

 
 
 
 

93. Lichen show :

 
 
 
 

94. Cycas revoluta is widely grown as :

 
 
 
 

95. Which of the following does not contain chlorophyll?

 
 
 
 

96. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

98.

 

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

 
 
 
 

100. What are Cyanobacteria?

 
 
 
 

101. An alga which is rich in proteins:

 
 
 
 

102. Halophiles are the bacteria that require for growth:

 
 
 
 

103. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

105. Most primitive embryophytes are placed in:

 
 
 
 

106. Iodine is obtained from :

 
 
 
 

107. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

109. Helotism word is used for the symbiosis between :

 
 
 
 

110. Chemosynthetic bacteria are:

 
 
 
 

111. Who discovered streptomycin?

 
 
 
 

112. Virion refers to:

 
 
 
 

113. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

115. What is the role of nitrifying bacteria?

 
 
 
 

116. The tree fern is:

 
 
 
 

117. Which is a tautonym?

 
 
 
 

118. . Tapetum develops in:

 
 
 
 

119. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

121. Winged seeds are found in :

 
 
 
 

122. Embryophyta includes:

 
 
 
 

123. Black rust of wheat is caused by:

 
 
 
 

124. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

126. Yeast is a source of:

 
 
 
 

127. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

130. Ovules are not found enclosed in ovary of:

 
 
 
 

131. The ferns are usually found:

 
 
 
 

132. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

134. Sporophyte of Funaria is :

 
 
 
 

135. Which causes red tide?

 
 
 
 

136. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

140. The zygospore in Rhizopus on germination forms:

 
 
 
 

141. Botulism is a:

 
 
 
 

142. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

144. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

146. Heterospory and ligulate leaves are a feature of:

 
 
 
 

147. Little leaf disease of Brinjal is caused by:

 
 
 
 

148. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

150. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

152. Which fixes atmospheric nitrogen?

 
 
 
 

153. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

156. How a fern differs from a moss?

 
 
 
 

157. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

160. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

163. Vascular cryptogam is the term used for :

 
 
 
 

164. Yeast belongs to class:

 
 
 
 

165. The sporangia of Selaginella are attached:

 
 
 
 

166. The genetic material of poxvirus is:

 
 
 
 

167. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

169. The zoospores of Ulothrix are :

 
 
 
 

170. The chief characteristic of bryophyta is that :

 
 
 
 

171. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

173. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

175. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

177. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

179. The fungi that grow on wood are called:

 
 
 
 

180. 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?

 
 
 
 

181. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

183. Spirogyra differs from moss protonema in having :

 
 
 
 

184. The two conjugating gametangia of Rhizopus are:

 
 
 
 

185. In moss, sporophyte is formed on:

 
 
 
 

186. The orders generally have the uniform endings:

 
 
 
 

187. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

190. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

192. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

194. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

198. Funaria is :

 
 
 
 

199. Bacteria are placed under:

 
 
 
 

200. The leaf of Cycas shows:

 
 
 
 

201. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

203. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

205. All protozoans possess:

 
 
 
 

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

 
 
 
 

207. Fern prothallus is:

 
 
 
 

208. Soil fertility is lost by the activities of:

 
 
 
 

209. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

211. Cycas plant in appearance resembles :

 
 
 
 

212. The tallest moss in the world is :

 
 
 
 

213. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. Botulinum toxin effects:

 
 
 
 

221. Aflatoxin is produced by:

 
 
 
 

222. Discovery of penicillin was based on:

 
 
 
 

223. Gram stain is used to:

 
 
 
 

224. Ectocarpus produces:

 
 
 
 

225. Pythium debaryanum is the causative agent of:

 
 
 
 

226. Which of the following statements is not correct?

 
 
 
 

227. Sleeping sickness disease in man is caused by:

 
 
 
 

228. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

230. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

232. Which have the largest antherozoid?

 
 
 
 

233. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

235. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

237. The roots of Cycas are :

 
 
 
 

238.

239. Reproduction in Cycas takes place by :

 
 
 
 

240. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

242. Fruits are not found in :

 
 
 
 

243. The smallest unit of classification is:

 
 
 
 

244. The order generally ends with:

 
 
 
 

245. Fruits are not found in:

 
 
 
 

246. Most of the algae are :

 
 
 
 

247. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

249. The plants of Funaria grow :

 
 
 
 

250. Lichens are indicators of :

 
 
 
 

251. Facultative saprophyte is:

 
 
 
 

252. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

254. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

256. Why is Cycas called a living fossil?

 
 
 
 

257. 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:

 
 
 
 

258. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

260. Mycoplasma contains:

 
 
 
 

261. A gill of Agaricus:

 
 
 
 

262. Enteric bacteria are those bacteria that live:

 
 
 
 

263. The phloem of vascular system of Cycas is :

 
 
 
 

264. Reproduction in Rhizopus is:

 
 
 
 

265. Maximum diversity of life forms occurs in :

 
 
 
 

266. 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:

 
 
 
 

267. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

270. The fungi used as food are:

 
 
 
 

271. 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?

 
 
 
 

272. Bivalved siliceous shell or frustule occur in:

 
 
 
 

273. Which is an edible fungus?

 
 
 
 

274. Male gametophyte of Selaginella is found:

 
 
 
 

275. The smallest bacterium is:

 
 
 
 

276. The development of sporangium in Selaginella is:

 
 
 
 

277. Funaria is :

 
 
 
 

278. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. Placenta in fern is:

 
 
 
 

282. Oswald Tippo’s classification is:

 
 
 
 

283. Endemic plants are characterised by their:

 
 
 
 

284. The archegonia of Selaginella are differentiated by:

 
 
 
 

285. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

288. Pinus is:

 
 
 
 

289. The group algae possesses representatives belonging to kingdom:

 
 
 
 

290. Cap cells are found in the filament of:

 
 
 
 

291. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

294. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299. The mycelium of Rhizopus is:

 
 
 
 

300. Which of the following have a prokaryotic cell?

 
 
 
 

301. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

304. Simple polyembryony is found in :

 
 
 
 

305. Ginkgo biloba is a:

 
 
 
 

306. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

308. Pinus gerardiana is :

 
 
 
 

309. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

311. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

313. First animal pathogenic virus was discovered by:

 
 
 
 

314. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

316. The lambda phase is a:

 
 
 
 

317. Bacteria are found everywhere, except:

 
 
 
 

318. Common phycobiont in a lichen is :

 
 
 
 

319. The source of litmus is :

 
 
 
 

320. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

322. What is absent in Deuteromycetes?

 
 
 
 

323. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

325. Cyanophage is a virus that attacks:

 
 
 
 

326. The DNA of E coli is:

 
 
 
 

327. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

329. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

331. Climbers are found in genus:

 
 
 
 

332. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. Majority of lichens are :

 
 
 
 

336. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

338. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

340. Generic name of mango is:

 
 
 
 

341. Which of the following is a monocot?

 
 
 
 

342. The leaves of Funaria are :

 
 
 
 

343. 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?

 
 
 
 

344. The largest alga is:

 
 
 
 

345.

346. Which is absent from the xylem of Cycas?

 
 
 
 

347. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

350. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

354. Which lichen is called Reindeer moss?

 
 
 
 

355. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

358. Spores of which plants have chloroplast:

 
 
 
 

359. Bacteriophage consists of:

 
 
 
 

360. Parmelia belongs to :

 
 
 
 

361. In moss, stomata are found:

 
 
 
 

362. Bacteria differ from viruses in being sensitive to:

 
 
 
 

363. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

368. Red rot of sugarcane is caused by:

 
 
 
 

369. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

371. The gametophyte of moss has distinct phases :

 
 
 
 

372. Funaria is a Bryophyta because :

 
 
 
 

373. The fern plant is:

 
 
 
 

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

 
 
 
 

375. Lichens reproduce by :

 
 
 
 

376. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

382. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

384. Azolla growing in paddy fields helps in:

 
 
 
 

385. In Gymnocarpeae the fruiting body is :

 
 
 
 

386. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

388. Redness of red sea is due to :

 
 
 
 

389. Genetic material of TMV is:

 
 
 
 

390. The ascus of yeast contains:

 
 
 
 

391. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

396. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

398. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

401. Protozoans are considered animals because these are:

 
 
 
 

402. Green plants are classified as:

 
 
 
 

403. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

405. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

407. Cyathia is characterized by:

 
 
 
 

408. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

415. Which is the nuclear material in bacteria?

 
 
 
 

416. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

424. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

426. Plasmids are:

 
 
 
 

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

 
 
 
 

428. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

430. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

432. In Cycas microsporangia are borne on:

 
 
 
 

433. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

435. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

437. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

440. Nitrogen-fixing bacteria may be located:

 
 
 
 

441. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

443. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

446. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. The sexual reproductive organs in Rhizopus are:

 
 
 
 

450. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

452. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Fern plants are:

 
 
 
 

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

 
 
 
 

457. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

459. Clostridium can:

 
 
 
 

460. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

462. Fertility of the soil is increased by:

 
 
 
 

463. Disease resistant plant varieties can be produced by :

 
 
 
 

464. Coenogamete is found in:

 
 
 
 

465. What is a vector?

 
 
 
 

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

 
 
 
 

467. Reserve food in Euglena is:

 
 
 
 

468. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

470. Most primitive group of vascular plants are:

 
 
 
 

471. To which country Antony van Leeuwenhoek belong?

 
 
 
 

472. Viruses are commonly transmitted in plants through:

 
 
 
 

473. Which organisms are the oldest life forms?

 
 
 
 

474. Mycoplasmas are not viruses in nature because:

 
 
 
 

475. Proembryo in Pinus is :

 
 
 
 

476. Each chloroplast in Spirogyra bears :

 
 
 
 

477. In moss, peristomial teeth are:

 
 
 
 

478. All archaebacteria lack:

 
 
 
 

479. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. In angiosperms double fertilization represents:

 
 
 
 

483. Virus and bacteriophage are made-up of:

 
 
 
 

484. Which is an exception to cell theory?

 
 
 
 

485. Select the correct statement: (NEET 2016)

 
 
 
 

486. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

488. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

490. Which is not found in bacteria?

 
 
 
 

491. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

495. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

497. Cocci types of bacteria are:

 
 
 
 

498. 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:

 
 
 
 

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

 
 
 
 

500. Heterocysts are found in :

 
 
 
 

501. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

503. Some diseases caused by bacteria are:

 
 
 
 

504. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

509. Ergot is obtained from :

 
 
 
 

510. Which statement is wrong in regard to bacteria?

 
 
 
 

511. Pollination in Cycas takes place by :

 
 
 
 

512. Mycoplasma is different from bacteria due to:

 
 
 
 

513. Fern prothallus produces:

 
 
 
 

514. Which is a fungicide?

 
 
 
 

515. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

517. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

520. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

522. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

526. Ulothrix produces :

 
 
 
 

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

 
 
 
 

528. Cryptogams include :

 
 
 
 

529. Facultative parasite is:

 
 
 
 

530. Heterotrichous habit means :

 
 
 
 

531. What is mycorrhiza?

 
 
 
 

532. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

534. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

535. Pseudomycelium is found in:

 
 
 
 

536. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

538. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

540. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

542. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

545. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

547. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

550. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

551. The rhizoids of Funaria are :

 
 
 
 

552. The sporangiophores in Rhizopus are:

 
 
 
 

553. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

555. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

557. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

561. The disease symptom necrosis refers to :

 
 
 
 

562. Photoautotrophic bacteria have:

 
 
 
 

563. Which of the following are included in Tracheophyta?

 
 
 
 

564. Which part of Riccia bears nurse cells?

 
 
 
 

565. Rhizopus and yeast are usually:

 
 
 
 

566. Most of the lichens are composed of :

 
 
 
 

567. Special feature of pollen grains of Pinus is :

 
 
 
 

568. Which one of the following statement is wrong?

 
 
 
 

569. Seeds are characteristically found in:

 
 
 
 

570. The male gametes of Pinus are :

 
 
 
 

571. Vascular cryptogams is the term used for:

 
 
 
 

572. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

574. Smallpox is caused by:

 
 
 
 

575. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

576. Pythium debaryanum is the causative agent of:

 
 
 
 

577. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

581. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

582. The lichens growing on rocks are called :

 
 
 
 

583. Green plants are classified as :

 
 
 
 

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

 
 
 
 

585. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

587. Viruses have:

 
 
 
 

588. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

590. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

593. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

595. Yeast grows more rapidly in:

 
 
 
 

596. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

600. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

601. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

604. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

609. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

611. Chemosynthetic bacteria are:

 
 
 
 

612. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

614. Red rot of sugarcane is caused by :

 
 
 
 

615. Pasteurized milk is:

 
 
 
 

616. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

621. Which of the following is a heterosporous pteridophyte?

 
 
 
 

622. The truncated cone of HIV consists of:

 
 
 
 

623. What is special feature of fern archegonia?

 
 
 
 

624. Total parasites belong to:

 
 
 
 

625. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

629. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. Male gametes in Dryopteris are:

 
 
 
 

635. Bryophyta have been placed in cryptogams because:

 
 
 
 

636. Most appropriate word for protozoans is:

 
 
 
 

637. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

640. The sporophyte of Riccia is represented by :

 
 
 
 

641. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

650. Select the wrong statement:

 
 
 
 

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

 
 
 
 

652. The largest known bacterium is:

 
 
 
 

653. Citrus canker is caused by :

 
 
 
 

654. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

656. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

658. The prothallus of fern is:

 
 
 
 

659. Cell walls of Gram-positive bacteria contain:

 
 
 
 

660. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

664. Pasteur is famous for his:

 
 
 
 

665. Broad spectrum antibiotic is, which:

 
 
 
 

666. The fungi are mostly:

 
 
 
 

667. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. Rice, pea, potato are :

 
 
 
 

673. Meiosis in Ulothrix takes place:

 
 
 
 

674. Aflatoxin is produced as a product in :

 
 
 
 

675. Sometimes the bacterial cell is enclosed in:

 
 
 
 

676. Which of the following is a parasitic algae?

 
 
 
 

677. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

678. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

680. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

682. Pinus microsporophyll bears:

 
 
 
 

683. Spermatophyta are characterized by producing:

 
 
 
 

684. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

686. Linnaeus is credited with introducing:

 
 
 
 

687. Fairy ring is the name given to:

 
 
 
 

688. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

692. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

694. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

699. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

702. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

704. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

709. E coli is a:

 
 
 
 

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

 
 
 
 

711. The alga, Spirogyra are found in :

 
 
 
 

712. Bentham and Hooker placed gymnosperms:

 
 
 
 

713. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

715. Antibiotics cure the disease by:

 
 
 
 

716. Which of the following is true for Selaginella?

 
 
 
 

717. The flagella of Chlamydomonas are:

 
 
 
 

718. Meristele of fern is:

 
 
 
 

719. Amoeba is a member of the phylum:

 
 
 
 

720. 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:

 
 
 
 

721. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

728. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

730. In Herpes virus DNA is:

 
 
 
 

731. In a diplontic life cycle:

 
 
 
 

732. 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:

 
 
 
 

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

 
 
 
 

734. Which of the following statement is correct?

 
 
 
 

735. Black rust of wheat is caused by:

 
 
 
 

736. Bacteriophages have been used as:

 
 
 
 

737. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

739. Number of capsomeres forming capsid of TMV is:

 
 
 
 

740. The archegonia in Selaginella develop on:

 
 
 
 

741. Photosynthetic bacteria have:

 
 
 
 

742. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

744. Woody climbers are known as :

 
 
 
 

745. The young leaves of Cycas have :

 
 
 
 

746. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

747. In a bacteriophage, DNA is present in:

 
 
 
 

748. Germ theory of disease was proposed by:

 
 
 
 

749. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

751. In Cycas:

 
 
 
 

752. Pteridophytes are also known as :

 
 
 
 

753. The sori in Dryopteris are found on:

 
 
 
 

754. All algae have:

 
 
 
 

755. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

760. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

763. What is streptomycin?

 
 
 
 

764. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

765. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

767. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

770. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

772. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

774. In binomial system most of the words are:

 
 
 
 

775. In Funaria :

 
 
 
 

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

 
 
 
 

777. Pasteurization of milk involves heating for:

 
 
 
 

778. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

781. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

783. Lichens show :

 
 
 
 

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

 
 
 
 

785. Which is the correct statement about Selaginella?

 
 
 
 

786. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

789. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

794. Bacteria were first discovered by:

 
 
 
 

795. Bacteria which are spherical are called:

 
 
 
 

796. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

798. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

801. The chloroplast in Ulothrix is :

 
 
 
 

802. Sexual reproduction in Rhizopus is by:

 
 
 
 

803. Choose the correct statement about Spirogyra:

 
 
 
 

804. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

806. The chromosomal number in:

 
 
 
 

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

 
 
 
 

808. Centric discoid form of diatom is:

 
 
 
 

809. Lichens are pioneers of vegetation in a :

 
 
 
 

810. Chief constituents of bordeaux mixture are :

 
 
 
 

811. Economic importance of bacteria lies in their being:

 
 
 
 

812. The term stele was given by:

 
 
 
 

813. 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?

 
 
 
 

814. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

816. Fruits are not found in Cycas because:

 
 
 
 

817. Acetobacter is useful in:

 
 
 
 

818. Psilotum is:

 
 
 
 

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

 
 
 
 

820. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

828. Early blight of potato is caused by:

 
 
 
 

829. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. Gymnosperms could also be called as:

 
 
 
 

834. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. Germination of the seed of Pinus is :

 
 
 
 

840. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

846. Spirogyra represents the :

 
 
 
 

847. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

849. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

851. Which of the following are absent in Mycoplasma?

 
 
 
 

852. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

853. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

857. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

859. Tautonyms are illegitimate in:

 
 
 
 

860. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. How is moss different from fern?

 
 
 
 

864. Vegetative reproduction in Cycas is by means of :