Quiz_Random

1. Selaginella differs from Moss in having:

 
 
 
 

2. The truncated cone of HIV consists of:

 
 
 
 

3. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Sleeping sickness disease in man is caused by:

 
 
 
 

7. Viruses have:

 
 
 
 

8.

9. Which is the nuclear material in bacteria?

 
 
 
 

10. Wine turns sour because of:

 
 
 
 

11. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

13. Funaria is a Bryophyta because :

 
 
 
 

14. The DNA of E coli is:

 
 
 
 

15. Cell walls of Gram-positive bacteria contain:

 
 
 
 

16. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

17. In Cycas:

 
 
 
 

18. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

20. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

22. The vascular bundles of Cycas stem are :

 
 
 
 

23. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. NBG of Lucknow is now named as:

 
 
 
 

27. The microsporophylls on the cone of Cycas are :

 
 
 
 

28. Which bacteria convert nitrate into nitrogen?

 
 
 
 

29. Viruses are considered to be:

 
 
 
 

30. The leaf of Cycas shows:

 
 
 
 

31. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

36. The spermatozoids of Cycas are :

 
 
 
 

37. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

38. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Saccharomyces is well known for:

 
 
 
 

43. All protozoans possess:

 
 
 
 

44. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

46. All archaebacteria lack:

 
 
 
 

47. Bacteria growing on synthetic medium are called:

 
 
 
 

48. Spirogyra represents the :

 
 
 
 

49. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

51. Transfusion tissue is present in the leaflet of:

 
 
 
 

52. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

54. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

56. Fairy ring is the name given to:

 
 
 
 

57. The fungi used as food are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Pteridophyta are also called:

 
 
 
 

61. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

63. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Pasteurization of milk involves heating for:

 
 
 
 

68. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

70. The term stele was given by:

 
 
 
 

71. Helotism word is used for the symbiosis between :

 
 
 
 

72. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

74. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

76. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

78. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Vascular tissue is found in :

 
 
 
 

82. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

84. Anoxygenic photosynthesis occurs in:

 
 
 
 

85. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. The fungi are mostly:

 
 
 
 

89. Iodine is obtained from:

 
 
 
 

90. Reserve food in Euglena is:

 
 
 
 

91. Saccharomyces is used in:

 
 
 
 

92. Which causes red tide?

 
 
 
 

93. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

95. Early blight of potato is caused by:

 
 
 
 

96. The flagella of Chlamydomonas are:

 
 
 
 

97. Bentham and Hooker placed gymnosperms:

 
 
 
 

98. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

100. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

103. Which is a fungicide?

 
 
 
 

104. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

109. Fern prothallus is:

 
 
 
 

110. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

112. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

115. Gram stain is used to:

 
 
 
 

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

 
 
 
 

117. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

119. Cleavage polyembryony is found in :

 
 
 
 

120. Which of the following does not contain chlorophyll?

 
 
 
 

121. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

123. Methanogens belong to:

 
 
 
 

124. Liverworts are included in :

 
 
 
 

125. Enteric bacteria are those bacteria that live:

 
 
 
 

126. The two conjugating gametangia of Rhizopus are:

 
 
 
 

127. Rice, pea, potato are :

 
 
 
 

128. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

131. The central part of Funaria axis is :

 
 
 
 

132. Funaria is :

 
 
 
 

133. Red rot of sugarcane is caused by :

 
 
 
 

134. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. Total parasites belong to:

 
 
 
 

142. Viroids have:

 
 
 
 

143. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

145. In binomial system most of the words are:

 
 
 
 

146. Which group of algae have an incipient nucleus?

 
 
 
 

147. The Rhizopus is:

 
 
 
 

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

 
 
 
 

149. Sometimes the bacterial cell is enclosed in:

 
 
 
 

150. Quarantine regulations are concerned with:

 
 
 
 

151. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

154. Mycoplasma contains:

 
 
 
 

155. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

159. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

161. Proembryo in Pinus is :

 
 
 
 

162. Plasmids are:

 
 
 
 

163. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

166. What is a vector?

 
 
 
 

167. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

170. What is streptomycin?

 
 
 
 

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

 
 
 
 

172. Most primitive kind of flower is represented by:

 
 
 
 

173. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

175. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

177. Bacteria were first discovered by:

 
 
 
 

178. What are Cyanobacteria?

 
 
 
 

179. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

181. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. The megasporangium of Selaginella is:

 
 
 
 

185. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

187. Azolla growing in paddy fields helps in:

 
 
 
 

188. Ovules are not found enclosed in ovary in :

 
 
 
 

189. Lichens form the first community in

 
 
 
 

190. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

193. The mycelium of Rhizopus is:

 
 
 
 

194. Desired type of Cycas can be grown by:

 
 
 
 

195. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

198. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

200. In Selaginella, the microsporangia are:

 
 
 
 

201. 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:

 
 
 
 

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

 
 
 
 

203. The coralloid roots are :

 
 
 
 

204. The phloem of vascular system of Cycas is :

 
 
 
 

205. Genetic material of TMV is:

 
 
 
 

206. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

210. Which organisms are the oldest life forms?

 
 
 
 

211. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

213. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

215. In Pteris, the roots are:

 
 
 
 

216. Majority of lichens are :

 
 
 
 

217. Which is an edible fungus?

 
 
 
 

218. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

220. 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:

 
 
 
 

221. The sporangiophores in Rhizopus are:

 
 
 
 

222. Ginkgo biloba is a:

 
 
 
 

223. Male gametes in Dryopteris are:

 
 
 
 

224. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

227. The plants of Funaria grow :

 
 
 
 

228. Enzymes are absent in:

 
 
 
 

229. Acellular slime mold is/are:

 
 
 
 

230. The middle sterile part of capsule is called:

 
 
 
 

231. Which is a tautonym?

 
 
 
 

232. Amoeba is a member of the phylum:

 
 
 
 

233. Which of the following is true for Selaginella?

 
 
 
 

234. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

236. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

238. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

241. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

243. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

245. Detailed study of bacteriophage was made by:

 
 
 
 

246. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. Cellular slime mold is:

 
 
 
 

251. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

254. Ergot is obtained from :

 
 
 
 

255. In moss, reduction division occurs in :

 
 
 
 

256. The nucleus of bacteria is:

 
 
 
 

257. The prothallus of fern represents the plant:

 
 
 
 

258. TMV was isolated in crystalline form by:

 
 
 
 

259. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

266. Mucilaginous canals in Cycas are found in :

 
 
 
 

267. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

269. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

274. Ethylene oxide is widely used to:

 
 
 
 

275. In a bacteriophage, DNA is present in:

 
 
 
 

276. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

283. Chemosynthetic bacteria are:

 
 
 
 

284. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

288. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

291. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

296. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

298. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

301. Male gametophyte of Selaginella is found:

 
 
 
 

302. Chemosynthetic bacteria are:

 
 
 
 

303. Bryophyta have a special character from other plants:

 
 
 
 

304. Pythium debaryanum is the causative agent of:

 
 
 
 

305. Little leaf disease of Brinjal is caused by:

 
 
 
 

306. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

308. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

310. Psilotum is:

 
 
 
 

311. The gametophyte of fern is as:

 
 
 
 

312. Most primitive group of vascular plants are:

 
 
 
 

313. The prothallus of fern is:

 
 
 
 

314. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

317. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

319. Each chloroplast in Spirogyra bears :

 
 
 
 

320. Mycoplasma is different from bacteria due to:

 
 
 
 

321. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

323. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

325. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

327. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. Which among the following is a shrub?

 
 
 
 

333. Meristele of fern is:

 
 
 
 

334. Among the algae kelps are :

 
 
 
 

335. Gymnosperms could also be called as:

 
 
 
 

336. The ferns are usually found:

 
 
 
 

337. Synzoospore is produced in:

 
 
 
 

338. Spermatophyta are characterized by producing:

 
 
 
 

339. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

340. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

346. In Funaria :

 
 
 
 

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

 
 
 
 

348. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

350. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

354. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

360. The chromosomal number in:

 
 
 
 

361. Spermatophyta are characterized by producing:

 
 
 
 

362. The gametophyte of moss has distinct phases :

 
 
 
 

363. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

367. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

370. Water bloom is generally caused by :

 
 
 
 

371. Soil fertility is lost by the activities of:

 
 
 
 

372. Lichens reproduce by :

 
 
 
 

373. Water-borne bacterial diseases are:

 
 
 
 

374. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

377. Ergot of rye is caused by:

 
 
 
 

378. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

383. The source of litmus is :

 
 
 
 

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

 
 
 
 

385. Photoautotrophic bacteria have:

 
 
 
 

386. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

388. The alga, Spirogyra are found in :

 
 
 
 

389. Chief constituents of bordeaux mixture are :

 
 
 
 

390. Lichens are the indicator of pollution :

 
 
 
 

391. 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:

 
 
 
 

392. Rhizopus and yeast are usually:

 
 
 
 

393. Which of the following is a monocot?

 
 
 
 

394. Facultative parasite is:

 
 
 
 

395. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

401. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

404. Longest known virus is:

 
 
 
 

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

 
 
 
 

406. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

408. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

409. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

411. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

413. Asexual reproductive body of Volvox is called:

 
 
 
 

414. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

416. Pythium debaryanum is the causative agent of:

 
 
 
 

417. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. Ovary is absent in:

 
 
 
 

421. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

427. Lichens are pioneers of vegetation in a :

 
 
 
 

428. Spores of which plants have chloroplast:

 
 
 
 

429. LSD is:

 
 
 
 

430. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

431. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

433. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. 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?

 
 
 
 

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

 
 
 
 

439. The antibiotic is obtained from:

 
 
 
 

440. Woody climbers are known as :

 
 
 
 

441. The chief characteristic of bryophyta is that :

 
 
 
 

442. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

444. Most of the lichens are composed of :

 
 
 
 

445. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

451. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

452. In Cycas the fertilization is:

 
 
 
 

453. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

456. Which is absent from the xylem of Cycas?

 
 
 
 

457. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

460. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

463. An English surgeon believed that microorganisms of the air caused infection in the wound and to avoid the infection, he used carbolic acid and hence he became the father of modern antiseptic surgery. His name is:

 
 
 
 

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

 
 
 
 

465. Mixed cropping helps :

 
 
 
 

466. Infective part of virus was discovered by:

 
 
 
 

467. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

469. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

471. Which of the following are included in Tracheophyta?

 
 
 
 

472. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

474. Most common type of conjugation in Spirogyra is :

 
 
 
 

475. Which of the following lichens is harmful?

 
 
 
 

476. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

477. The sori in Dryopteris are found on:

 
 
 
 

478. Penicillin was discovered by:

 
 
 
 

479. The largest alga is:

 
 
 
 

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

 
 
 
 

481. Select the wrong statement:

 
 
 
 

482. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. Lichens reproduce by :

 
 
 
 

486. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

490. Fruits are not found in Cycas because:

 
 
 
 

491. Roots are absent in :

 
 
 
 

492. The lambda phase is a:

 
 
 
 

493. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

496. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

498. Bacteria which are spherical are called:

 
 
 
 

499. Who discovered heterothallism in fungi?

 
 
 
 

500. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

502. In tracheophyta:

 
 
 
 

503. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

511. Milk is converted to curd by:

 
 
 
 

512. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

514. Special feature of pollen grains of Pinus is :

 
 
 
 

515. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. Lichen show :

 
 
 
 

519. 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?

 
 
 
 

520. The leaves of Funaria are :

 
 
 
 

521. Pinus is:

 
 
 
 

522. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. Winged seeds are found in :

 
 
 
 

529. Leprosy is caused by:

 
 
 
 

530. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

532. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

534. The sporangium of fern contains nearly:

 
 
 
 

535. 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:

 
 
 
 

536. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

538. Late blight of potato is caused by :

 
 
 
 

539. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

544. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

548. Viruses are commonly transmitted in plants through:

 
 
 
 

549. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

551. Yeast is a source of:

 
 
 
 

552. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

553. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

555. In Cycas microsporangia are borne on:

 
 
 
 

556. Discovery of penicillin was based on:

 
 
 
 

557. The mode of nutrition of bacteria is usually:

 
 
 
 

558. Nitrogen-fixing bacteria may be located:

 
 
 
 

559. What is absent in Deuteromycetes?

 
 
 
 

560. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

562. Which one of the following statement is wrong?

 
 
 
 

563. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. Citrus canker is caused by:

 
 
 
 

568. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

570. Which is a gametophytic tissue?

 
 
 
 

571. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

572. Streptomycin is obtained from:

 
 
 
 

573. The largest known bacterium is:

 
 
 
 

574. Which of the following statements is not correct?

 
 
 
 

575. In angiosperms double fertilization represents:

 
 
 
 

576. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

578. Cycas is:

 
 
 
 

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

 
 
 
 

580. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

585. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

589. Embryo formation is not known in :

 
 
 
 

590. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

591. Fern plants are:

 
 
 
 

592. Virion refers to:

 
 
 
 

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

 
 
 
 

594. The first to isolate a plant virus was:

 
 
 
 

595. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. Generic name of mango is:

 
 
 
 

602. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

604. E coli is a:

 
 
 
 

605. Pneumonia is caused by:

 
 
 
 

606. Fruits are not found in:

 
 
 
 

607. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

609. Leaf spot of groundnut is caused by :

 
 
 
 

610. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

612. Climbers are found in genus:

 
 
 
 

613. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. Cycas is different from mango in :

 
 
 
 

619. The stele of Dryopteris is a:

 
 
 
 

620. Small epidermal swellings due to infection are called :

 
 
 
 

621. Protists which are diploid reproduce sexually by:

 
 
 
 

622. Most primitive embryophytes are placed in :

 
 
 
 

623. The photosynthetic protists are:

 
 
 
 

624. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

626. 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?

 
 
 
 

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

 
 
 
 

628. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

630. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

632. Heterocysts are found in :

 
 
 
 

633. Which of the following are included in Tracheophyta?

 
 
 
 

634. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

636. Club moss and Peat moss belong to:

 
 
 
 

637. In dinoflagellates, the two flagella are:

 
 
 
 

638. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

639. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

648. First animal pathogenic virus was discovered by:

 
 
 
 

649. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

652. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

655. Fruits are not found in :

 
 
 
 

656. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

657. Pseudomycelium is found in:

 
 
 
 

658. Pinus microsporophyll bears:

 
 
 
 

659. Mycoplasma are:

 
 
 
 

660. Which fixes atmospheric nitrogen?

 
 
 
 

661. Which of the following are absent in Mycoplasma?

 
 
 
 

662. Heterospory is the production of:

 
 
 
 

663. Reproduction in Cycas takes place by :

 
 
 
 

664. The young leaves of Cycas have :

 
 
 
 

665. Cyanophage is a virus that attacks:

 
 
 
 

666. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

668. Which is the correct statement about Selaginella?

 
 
 
 

669. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

670. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

673. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

678. Black rust of wheat is caused by:

 
 
 
 

679. Bacteriophages have been used as:

 
 
 
 

680. Ulothrix produces :

 
 
 
 

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

 
 
 
 

682. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. Lichens are indicators of :

 
 
 
 

687. Tautonyms are illegitimate in:

 
 
 
 

688. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

690. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

693. Embryophyta includes:

 
 
 
 

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

 
 
 
 

695. 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:

 
 
 
 

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

 
 
 
 

697. Streptomyces falls under:

 
 
 
 

698. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

700. Oswald Tippo’s classification is:

 
 
 
 

701. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. Some diseases caused by bacteria are:

 
 
 
 

706. How a fern differs from a moss?

 
 
 
 

707. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

709. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

711. Redness of red sea is due to :

 
 
 
 

712. In Herpes virus DNA is:

 
 
 
 

713. The ascus of yeast contains:

 
 
 
 

714. In moss, sporophyte is formed on:

 
 
 
 

715. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

717. The spur of Pinus roxburghii has :

 
 
 
 

718. Polystelic condition is found in:

 
 
 
 

719. Reproduction in Rhizopus is:

 
 
 
 

720. Winged pollen grains are found in :

 
 
 
 

721. Botulism is a:

 
 
 
 

722. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

727. Fertility of the soil is increased by:

 
 
 
 

728. Funaria can be differentiated from Cycas :

 
 
 
 

729. Pollination drop is:

 
 
 
 

730. Mostly type of zygospore in Ulothrix is:

 
 
 
 

731. Typhoid in man is caused by:

 
 
 
 

732. 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:

 
 
 
 

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

 
 
 
 

734. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

740. Which one of the following is a monocot?

 
 
 
 

741. Most appropriate word for protozoans is:

 
 
 
 

742. Embryophyta includes :

 
 
 
 

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

 
 
 
 

744. The fern plant is:

 
 
 
 

745. The antherozoids of Funaria are :

 
 
 
 

746. Mycoplasma are sensitive to:

 
 
 
 

747. Rhizopus belongs to:

 
 
 
 

748. In Cycas which structure is equivalent to stamen?

 
 
 
 

749. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

750. An alga which is rich in proteins:

 
 
 
 

751. Antibiotic has been extracted from :

 
 
 
 

752. The most important property of yeast is:

 
 
 
 

753. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Mycoplasmas are not viruses in nature because:

 
 
 
 

758. Select the wrong statement:

 
 
 
 

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

 
 
 
 

760.

 

761. Cycas is similar to a mustard plant :

 
 
 
 

762. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

764. The sporophyte of Riccia is represented by :

 
 
 
 

765. Who discovered cyanophages?

 
 
 
 

766. Green plants are classified as:

 
 
 
 

767. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

769. Bacteria differ from viruses in being sensitive to:

 
 
 
 

770. Absorptive nutrition is:

 
 
 
 

771. Vascular cryptogams is the term used for:

 
 
 
 

772. Which of the following have a prokaryotic cell?

 
 
 
 

773. Nannandria are:

 
 
 
 

774. Standard size of a herbarium sheet is:

 
 
 
 

775. Ovules are not found enclosed in ovary of:

 
 
 
 

776. Who named prion?

 
 
 
 

777. Placenta in fern is:

 
 
 
 

778.

779. The gametophyte produced by apospory is :

 
 
 
 

780. Zoogametes are not found in:

 
 
 
 

781. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

783. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

785. The group algae possesses representatives belonging to kingdom:

 
 
 
 

786. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

788. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

796. Which have the largest antherozoid?

 
 
 
 

797. Yeast grows more rapidly in:

 
 
 
 

798. Which condition is found in Cycas?

 
 
 
 

799. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

801. The sporophyte of Riccia is :

 
 
 
 

802. Seeds are characteristically found in :

 
 
 
 

803. What is special feature of fern archegonia?

 
 
 
 

804. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

806. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

807. The male gametes of Pinus are :

 
 
 
 

808. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

810. Triple antigen injection or vaccine are for:

 
 
 
 

811. Which of the following statement is correct?

 
 
 
 

812. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. The similarity between cyanobacteria and bacteria:

 
 
 
 

816. Bacteria are placed under:

 
 
 
 

817. Interferon is a:

 
 
 
 

818. The root nodules of leguminous plants contain:

 
 
 
 

819. Metulae are found in:

 
 
 
 

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

 
 
 
 

821. The seedless plants which possess vascular tissues are:

 
 
 
 

822. Which of the following have algal zone?

 
 
 
 

823. Acetobacter is useful in:

 
 
 
 

824. Which lichen is called Reindeer moss?

 
 
 
 

825. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

828. In Funaria, calyptra is derived from :

 
 
 
 

829. White rust of crucifers is caused by:

 
 
 
 

830. In moss, sporogenous tissue arises from:

 
 
 
 

831. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

833. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

835. Most of the algae are :

 
 
 
 

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

 
 
 
 

837. The chief characteristic of class Ascomycetes is:

 
 
 
 

838. Late blight of potato is caused by:

 
 
 
 

839. Cycas is :

 
 
 
 

840. Yeast belongs to class:

 
 
 
 

841. Penicillin is obtained from:

 
 
 
 

842. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

844. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

847. Bacteria are considered to be plants because they:

 
 
 
 

848. The fungi are usually:

 
 
 
 

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

 
 
 
 

850. Ectocarpus produces:

 
 
 
 

851. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

853. Black rust of wheat is caused by:

 
 
 
 

854. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

856. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

860. How is moss different from fern?

 
 
 
 

861. Bivalved siliceous shell or frustule occur in:

 
 
 
 

862. Smut of maize is caused by :

 
 
 
 

863. Nitrifying bacteria play an important role by converting:

 
 
 
 

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