Quiz_Random

1. TMV was isolated in crystalline form by:

 
 
 
 

2. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Parmelia belongs to :

 
 
 
 

6. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

8. Embryo formation is not known in :

 
 
 
 

9. Heterocysts are found in :

 
 
 
 

10. 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?

 
 
 
 

11. Red rot of sugarcane is caused by :

 
 
 
 

12. Where does meiosis occur in yeast?

 
 
 
 

13. Which condition is found in Cycas?

 
 
 
 

14. Rhizopus belongs to:

 
 
 
 

15. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

17. Mostly type of zygospore in Ulothrix is:

 
 
 
 

18. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

24. 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?

 
 
 
 

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

 
 
 
 

26. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

28. Which of the following is a monocot?

 
 
 
 

29. The gametophyte of fern bears:

 
 
 
 

30. Redness of red sea is due to :

 
 
 
 

31. Which fixes atmospheric nitrogen?

 
 
 
 

32.

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

 
 
 
 

34. The tallest moss in the world is :

 
 
 
 

35. Which is an edible fungus?

 
 
 
 

36. Mucilaginous canals in Cycas are found in :

 
 
 
 

37. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

44. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. Lichens are the indicator of pollution :

 
 
 
 

52. Bacteria were first discovered by:

 
 
 
 

53. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Yeast is a source of:

 
 
 
 

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

 
 
 
 

59. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

61. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

69. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

71. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

73. Which is the correct statement about Selaginella?

 
 
 
 

74. Azolla growing in paddy fields helps in:

 
 
 
 

75. Liverworts are included in :

 
 
 
 

76. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

78. How is moss different from fern?

 
 
 
 

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

 
 
 
 

80. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

82. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. In Cycas microsporangia are borne on:

 
 
 
 

86. Majority of lichens are :

 
 
 
 

87. Photosynthetic protists belong to:

 
 
 
 

88. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Indusium in Dryopteris is:

 
 
 
 

92. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

94. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

97. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

100. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

102. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

103. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. 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:

 
 
 
 

108. Funaria can be differentiated from Cycas :

 
 
 
 

109. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

111. Fern plants are:

 
 
 
 

112. The stele of Dryopteris is a:

 
 
 
 

113. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. Cyathia is characterized by:

 
 
 
 

117. The fern plant is:

 
 
 
 

118. Chief constituents of bordeaux mixture are :

 
 
 
 

119. Yeast grows more rapidly in:

 
 
 
 

120. The megasporangium of Selaginella is:

 
 
 
 

121. Funaria is :

 
 
 
 

122. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

124. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

127. Heterotrichous habit means :

 
 
 
 

128. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

130. The leaves of Funaria are :

 
 
 
 

131. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

133. In dinoflagellates, the two flagella are:

 
 
 
 

134. Vegetative reproduction in Cycas is by means of :

 
 
 
 

135. Pasteur is famous for his:

 
 
 
 

136. Sometimes the bacterial cell is enclosed in:

 
 
 
 

137. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

139. The smallest unit of classification is:

 
 
 
 

140. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

142. Which causes red tide?

 
 
 
 

143. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

145. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

148. Saccharomyces is used in:

 
 
 
 

149. The archegonia in Selaginella develop on:

 
 
 
 

150. Which class of Protozoa includes all parasitic forms?

 
 
 
 

151. Metulae are found in:

 
 
 
 

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

 
 
 
 

153. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

155. Protistan algae obtain their food as:

 
 
 
 

156. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

157. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

160. Pollination drop is:

 
 
 
 

161. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

163. Most of the algae are :

 
 
 
 

164. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

171. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

174. The Rhizopus is:

 
 
 
 

175. Red rot of sugarcane is caused by:

 
 
 
 

176. Which among the following is a shrub?

 
 
 
 

177. Smallpox is caused by:

 
 
 
 

178. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

181. Which of the following is sago palm?

 
 
 
 

182. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

186. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

188. Synzoospore is produced in:

 
 
 
 

189. All algae have:

 
 
 
 

190. The chloroplast of Chlamydomonas are:

 
 
 
 

191. 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:

 
 
 
 

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

 
 
 
 

193. E coli is a:

 
 
 
 

194. Pasteurization of milk involves heating for:

 
 
 
 

195. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. The ferns are usually found:

 
 
 
 

201. Cycas plant in appearance resembles :

 
 
 
 

202. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

204. Which have the largest antherozoid?

 
 
 
 

205. Lichens form the first community in

 
 
 
 

206. Linnaeus is credited with introducing:

 
 
 
 

207. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

210. The zygospore in Rhizopus on germination forms:

 
 
 
 

211. Simple polyembryony is found in :

 
 
 
 

212. Desired type of Cycas can be grown by:

 
 
 
 

213. Sporophyte of Funaria is :

 
 
 
 

214. 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?

 
 
 
 

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

 
 
 
 

216. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. Bacteria differ from viruses in being sensitive to:

 
 
 
 

221. Mycoplasmas are not viruses in nature because:

 
 
 
 

222. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

230. The orders generally have the uniform endings:

 
 
 
 

231. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

232. How a fern differs from a moss?

 
 
 
 

233. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

235. The fungi are mostly:

 
 
 
 

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

 
 
 
 

237. In a bacteriophage, DNA is present in:

 
 
 
 

238. The nucleus of bacteria is:

 
 
 
 

239. Male gametophyte of Selaginella is found:

 
 
 
 

240. 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:

 
 
 
 

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

 
 
 
 

242. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

244. The rhizoids of Funaria are :

 
 
 
 

245. In Cycas which structure is equivalent to stamen?

 
 
 
 

246. White rust of crucifers is caused by:

 
 
 
 

247. Azolla and Salvinia both are:

 
 
 
 

248. Most appropriate word for protozoans is:

 
 
 
 

249. Endemic plants are characterised by their:

 
 
 
 

250. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

252. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. Disease resistant plant varieties can be produced by :

 
 
 
 

256. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

258. The root nodules of leguminous plants contain:

 
 
 
 

259. Cycas is different from mango in :

 
 
 
 

260. Botulism is a:

 
 
 
 

261. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

263. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

265. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

268. Select the correct statement: (NEET 2016)

 
 
 
 

269. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

271. Botulinum toxin effects:

 
 
 
 

272. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. Each chloroplast in Spirogyra bears :

 
 
 
 

276. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

278. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

280. Seeds are characteristically found in:

 
 
 
 

281. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

283. Roots are absent in :

 
 
 
 

284. In Funaria :

 
 
 
 

285. Water bloom is generally caused by :

 
 
 
 

286. Halophiles are the bacteria that require for growth:

 
 
 
 

287. Mycoplasma was discovered by:

 
 
 
 

288. Funaria is :

 
 
 
 

289. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

291. Pythium debaryanum is the causative agent of:

 
 
 
 

292. In moss, sporogenous tissue arises from:

 
 
 
 

293. In tracheophyta:

 
 
 
 

294. Lichens are pioneers of vegetation in a :

 
 
 
 

295. Which is a tautonym?

 
 
 
 

296. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

300. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

302. Fruits are not found in Cycas because:

 
 
 
 

303. True sexuality is not found in:

 
 
 
 

304. The photosynthetic protists are:

 
 
 
 

305. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

307. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

309. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

310. Ginkgo biloba is a:

 
 
 
 

311. Vascular cryptogams is the term used for:

 
 
 
 

312. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

314. An alga which is rich in proteins:

 
 
 
 

315. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

317. Gram stain is used to:

 
 
 
 

318. Leaf spot of groundnut is caused by :

 
 
 
 

319. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

322. All protozoans possess:

 
 
 
 

323. The order generally ends with:

 
 
 
 

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

 
 
 
 

325. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

327. Gametophyte is the main plant body in :

 
 
 
 

328. LSD is:

 
 
 
 

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

 
 
 
 

330. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

332. The roots of Cycas are :

 
 
 
 

333. Oswald Tippo’s classification is:

 
 
 
 

334. The truncated cone of HIV consists of:

 
 
 
 

335. Embryophyta includes:

 
 
 
 

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

 
 
 
 

337. In Cycas the fertilization is:

 
 
 
 

338. Chemosynthetic bacteria are:

 
 
 
 

339. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. Black rust of wheat is caused by:

 
 
 
 

344. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

346. The prothallus of fern is:

 
 
 
 

347. Selaginella differs from Moss in having:

 
 
 
 

348. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

350. Pinus is:

 
 
 
 

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

 
 
 
 

352. The ascus of yeast contains:

 
 
 
 

353. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

355. Lichens reproduce by :

 
 
 
 

356. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

357. Nitrifying bacteria play an important role by converting:

 
 
 
 

358. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

360. Fruiting body of lichens is :

 
 
 
 

361. A gill of Agaricus:

 
 
 
 

362. Which of the following have a prokaryotic cell?

 
 
 
 

363. Which lichen is called Reindeer moss?

 
 
 
 

364. Detailed study of bacteriophage was made by:

 
 
 
 

365. Which is an exception to cell theory?

 
 
 
 

366. Bacteriophages have been used as:

 
 
 
 

367. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

369. Meristele of fern is:

 
 
 
 

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

 
 
 
 

371. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

375. Pteridophytes are also known as :

 
 
 
 

376. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

379. In moss, stomata are found:

 
 
 
 

380. The disease apple scab is caused by:

 
 
 
 

381. The role of meiosis is for:

 
 
 
 

382. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

386. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

388. Penicillin was discovered by:

 
 
 
 

389. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

392. Viroids have:

 
 
 
 

393. Select the wrong statement:

 
 
 
 

394. The lambda phase is a:

 
 
 
 

395. Isomorphic type alternation of generation is found in:

 
 
 
 

396. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

398. The source of litmus is :

 
 
 
 

399. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

401. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

402. The upper region of moss capsule is :

 
 
 
 

403. Citrus canker is caused by:

 
 
 
 

404. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. Cryptogams include :

 
 
 
 

408. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Total parasites belong to:

 
 
 
 

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

 
 
 
 

415. Photosynthetic bacteria have:

 
 
 
 

416. The sporangium of fern contains nearly:

 
 
 
 

417. The leaves of Funaria are :

 
 
 
 

418. Polystelic condition is found in:

 
 
 
 

419. The largest known bacterium is:

 
 
 
 

420. Male gametes in Dryopteris are:

 
 
 
 

421. 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:

 
 
 
 

422. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

424. Clostridium can:

 
 
 
 

425. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

426. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

430. Etiology includes the study of :

 
 
 
 

431. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

434. The alga, Spirogyra are found in :

 
 
 
 

435. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

439. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

442. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

444. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

446. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

448. Pollination in Cycas takes place by :

 
 
 
 

449. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

452. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

454. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

456. The male gametes of Pinus are :

 
 
 
 

457. Little leaf disease of Brinjal is caused by:

 
 
 
 

458. Embryophyta includes :

 
 
 
 

459. Placenta in fern is:

 
 
 
 

460. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

462. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

464. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

466. The archegonia of Selaginella are differentiated by:

 
 
 
 

467. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

471. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. Generic name of mango is:

 
 
 
 

475. Heterospory and ligulate leaves are a feature of:

 
 
 
 

476. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. The sori in Dryopteris are found on:

 
 
 
 

483. The young leaves of Cycas have :

 
 
 
 

484. In Gymnocarpeae the fruiting body is :

 
 
 
 

485. Lichen show :

 
 
 
 

486. Ergot is obtained from :

 
 
 
 

487. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

490. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

492. The prothallus of fern represents the plant:

 
 
 
 

493. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

495. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

497. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

499. Red rot of sugarcane is caused by :

 
 
 
 

500. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

503. Spirogyra represents the :

 
 
 
 

504. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

506. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

508. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

510. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

513. The tree fern is:

 
 
 
 

514. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

517. Leprosy is caused by:

 
 
 
 

518. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

520. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

527. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

529. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

531. In a diplontic life cycle:

 
 
 
 

532. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

534. Fruits are not found in:

 
 
 
 

535. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

537. Club moss is the common name of :

 
 
 
 

538. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

543. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

547. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

549. Virion refers to:

 
 
 
 

550. Streptomyces falls under:

 
 
 
 

551. In moss, peristomial teeth are:

 
 
 
 

552. First animal pathogenic virus was discovered by:

 
 
 
 

553. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

557. Pseudomycelium is found in:

 
 
 
 

558. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

560. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

562.

 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

569. Black rust of wheat is caused by:

 
 
 
 

570. Cycas is similar to a mustard plant :

 
 
 
 

571. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

573. Cleavage polyembryony is found in :

 
 
 
 

574. Methanogens belong to:

 
 
 
 

575. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

577. Late blight of potato is caused by :

 
 
 
 

578. In moss, reduction division occurs in :

 
 
 
 

579. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

582. Which is absent from the xylem of Cycas?

 
 
 
 

583. Fern phloem lacks:

 
 
 
 

584. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

587. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

589.

590. Absorptive nutrition is:

 
 
 
 

591. Yeast belongs to class:

 
 
 
 

592. Virus and bacteriophage are made-up of:

 
 
 
 

593. Plasmids are:

 
 
 
 

594. Citrus canker is caused by :

 
 
 
 

595. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

599. Psilotum is:

 
 
 
 

600. In angiosperms double fertilization represents:

 
 
 
 

601. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

603. Fruits are not found in :

 
 
 
 

604. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

606. What are plasmids?

 
 
 
 

607. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

609. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

611. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

613. The leaf of Cycas shows:

 
 
 
 

614. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

615. Viruses are considered to be:

 
 
 
 

616. Cycas revoluta is widely grown as :

 
 
 
 

617. Which part of Riccia bears nurse cells?

 
 
 
 

618. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

620. Common phycobiont in a lichen is :

 
 
 
 

621. Which of the following is true for viruses?

 
 
 
 

622. Usually, bacteria reproduce by:

 
 
 
 

623. Which of the following is a parasitic algae?

 
 
 
 

624. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

626. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

627. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

632. What is special feature of fern archegonia?

 
 
 
 

633. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

637. In Funaria, calyptra is derived from :

 
 
 
 

638. Who named prion?

 
 
 
 

639. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

641. Sporophyte of fern is:

 
 
 
 

642. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. All archaebacteria lack:

 
 
 
 

646. Most primitive embryophytes are placed in:

 
 
 
 

647. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

650. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

653. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

656. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

659. Photoautotrophic bacteria have:

 
 
 
 

660. Acetobacter is useful in:

 
 
 
 

661. Cyanophage is a virus that attacks:

 
 
 
 

662. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

665. The largest alga is:

 
 
 
 

666. Late blight of potato is caused by:

 
 
 
 

667. Seeds are characteristically found in :

 
 
 
 

668. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

669. Which of the following applies to Selaginella?

 
 
 
 

670. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

672. Ergot of rye is caused by:

 
 
 
 

673. Vascular cryptogam is the term used for :

 
 
 
 

674. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

680. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

682. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

684. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

686. Facultative parasite is:

 
 
 
 

687. Some biologists have used the term Mycetozoa for:

 
 
 
 

688. The Rhizopus gametes are formed in:

 
 
 
 

689. Lichens are indicators of :

 
 
 
 

690. Some diseases caused by bacteria are:

 
 
 
 

691. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

693. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

697. Spirogyra differs from moss protonema in having :

 
 
 
 

698. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

700. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

702. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

704. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

706.

707. Pteridophyta are also called:

 
 
 
 

708. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

710. Penicillin is obtained from:

 
 
 
 

711. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

718. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

720. The seedless plants which possess vascular tissues are:

 
 
 
 

721. The gametophyte produced by apospory is :

 
 
 
 

722. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

724. The antherozoids of Funaria are :

 
 
 
 

725. Bryophyta have a special character from other plants:

 
 
 
 

726. Oswald Tippo’s classification was based on :

 
 
 
 

727. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

729. Ulothrix produces :

 
 
 
 

730. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

732. Standard size of a herbarium sheet is:

 
 
 
 

733. The first to isolate a plant virus was:

 
 
 
 

734. The flagella of Chlamydomonas are:

 
 
 
 

735. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

737. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

739. Milk is converted to curd by:

 
 
 
 

740. Aflatoxin is produced by:

 
 
 
 

741. Early blight of potato is caused by:

 
 
 
 

742. The megaspore of Selaginella on germination produces:

 
 
 
 

743. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

745. Mycoplasma contains:

 
 
 
 

746. Heterosporous pteridophytes always form:

 
 
 
 

747. The fungi are usually:

 
 
 
 

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

 
 
 
 

749. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

753. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

760. Anoxygenic photosynthesis occurs in:

 
 
 
 

761. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. Interferon is a:

 
 
 
 

765. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

767. Genetic material of TMV is:

 
 
 
 

768. Why is Cycas called a living fossil?

 
 
 
 

769. Water-net is the name of:

 
 
 
 

770. Who discovered streptomycin?

 
 
 
 

771. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

772. Which statement is wrong in regard to bacteria?

 
 
 
 

773. The smallest bacterium is:

 
 
 
 

774. Wine turns sour because of:

 
 
 
 

775. The phloem of vascular system of Cycas is :

 
 
 
 

776. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

779. Proembryo in Pinus is :

 
 
 
 

780. An Hfr bacterium is one that contains:

 
 
 
 

781. The fungi used as food are:

 
 
 
 

782. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

784. The antibiotic is obtained from:

 
 
 
 

785. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

787. Which is the nuclear material in bacteria?

 
 
 
 

788. Number of capsomeres forming capsid of TMV is:

 
 
 
 

789. The spermatozoids of Cycas are :

 
 
 
 

790. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

792. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

794. Which of the following are absent in Mycoplasma?

 
 
 
 

795. Bryophyta have been placed in cryptogams because:

 
 
 
 

796. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

798. 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:

 
 
 
 

799. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

801. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

805. Spores of which plants have chloroplast:

 
 
 
 

806. 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?

 
 
 
 

807. In moss, conducting tissue is made up of

 
 
 
 

808. Green plants are classified as :

 
 
 
 

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

 
 
 
 

810. Which one of the following statement is wrong?

 
 
 
 

811. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

813. Diploxylic vascular bundles are found in:

 
 
 
 

814. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

815. Nannandria are:

 
 
 
 

816. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

818. Lichens reproduce by :

 
 
 
 

819. Pythium debaryanum is the causative agent of:

 
 
 
 

820. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

822. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

824. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

827. Meiosis in Ulothrix takes place:

 
 
 
 

828. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

829. Antibiotic has been extracted from :

 
 
 
 

830. Banana bunchy top is caused by :

 
 
 
 

831. Ovary is absent in:

 
 
 
 

832. The mode of nutrition of bacteria is usually:

 
 
 
 

833. Ovary is absent in :

 
 
 
 

834. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

837. Sleeping sickness disease in man is caused by:

 
 
 
 

838. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

840. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

842. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

848. Longest known virus is:

 
 
 
 

849. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

853. The sexual reproductive organs in Rhizopus are:

 
 
 
 

854. The gametophyte of fern is as:

 
 
 
 

855. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

857. Agar-agar is obtained from:

 
 
 
 

858. Gymnosperms could also be called as:

 
 
 
 

859. Which is not found in bacteria?

 
 
 
 

860. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

862. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

864. Centric discoid form of diatom is: