Quiz_Random

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. The disease apple scab is caused by:

 
 
 
 

6. Bentham and Hooker placed gymnosperms:

 
 
 
 

7. Cycas revoluta is widely grown as :

 
 
 
 

8. The tallest moss in the world is :

 
 
 
 

9. 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:

 
 
 
 

10. The most primitive vascular plants is:

 
 
 
 

11. Agar-agar is obtained from:

 
 
 
 

12. Among the algae kelps are :

 
 
 
 

13. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. Photosynthetic protists belong to:

 
 
 
 

17. Ovules are not found enclosed in ovary in :

 
 
 
 

18. Economic importance of bacteria lies in their being:

 
 
 
 

19. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. The leaf of Cycas shows:

 
 
 
 

25. 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?

 
 
 
 

26. The group algae possesses representatives belonging to kingdom:

 
 
 
 

27. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

29. The leaves of Funaria are :

 
 
 
 

30. Cellular slime mold is:

 
 
 
 

31. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

33. Black rust of wheat is caused by:

 
 
 
 

34. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

36. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. The male gametes of Pinus are :

 
 
 
 

41. Green plants are classified as :

 
 
 
 

42. One of the distinctive feature of Spirogyra is :

 
 
 
 

43. Bacteria were first discovered by:

 
 
 
 

44. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Disease resistant plant varieties can be produced by :

 
 
 
 

50. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

52. The sporophyte of Riccia is represented by :

 
 
 
 

53. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

54. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

62. Late blight of potato is caused by:

 
 
 
 

63. In Cycas which structure is equivalent to stamen?

 
 
 
 

64. In Funaria :

 
 
 
 

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

 
 
 
 

66. Cryptogams include :

 
 
 
 

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

 
 
 
 

68. Bacteria growing on synthetic medium are called:

 
 
 
 

69. Fruits are not found in :

 
 
 
 

70. Cap cells are found in the filament of:

 
 
 
 

71. In moss, sporogenous tissue arises from:

 
 
 
 

72. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

73. Methanogens belong to:

 
 
 
 

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

 
 
 
 

75. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

76. Winged pollen grains are found in :

 
 
 
 

77. Yeast grows more rapidly in:

 
 
 
 

78. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

79. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

81. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. Which of the following shows heterotrichous habit?

 
 
 
 

87. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Green plants are classified as:

 
 
 
 

91. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Bacteria are placed under:

 
 
 
 

95. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

97. Why is Cycas called a living fossil?

 
 
 
 

98. Siphonogamy is found in:

 
 
 
 

99. Oswald Tippo’s classification is:

 
 
 
 

100. The gametophyte of fern is as:

 
 
 
 

101. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

105. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

107. Azolla and Salvinia both are:

 
 
 
 

108. The chromosomal number in:

 
 
 
 

109. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Tautonyms are illegitimate in:

 
 
 
 

113. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

115. Which condition is found in Cycas?

 
 
 
 

116. Which causes red tide?

 
 
 
 

117. Acetobacter is useful in:

 
 
 
 

118. Generic name of mango is:

 
 
 
 

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

 
 
 
 

120. Lichens form the first community in

 
 
 
 

121. In Selaginella, the microsporangia are:

 
 
 
 

122. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

123. Which of the following is true for Selaginella?

 
 
 
 

124. Which of the following are included in Tracheophyta?

 
 
 
 

125. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

135. Nannandria are:

 
 
 
 

136. Mostly type of zygospore in Ulothrix is:

 
 
 
 

137. The tree fern is:

 
 
 
 

138. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

140. The Rhizopus is:

 
 
 
 

141. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

144. Cyathia is characterized by:

 
 
 
 

145. Who among the following discovered virus?

 
 
 
 

146. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

150. The prothallus of fern is:

 
 
 
 

151. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

153. The ferns are usually found:

 
 
 
 

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

 
 
 
 

155. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

157. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

160. Usually, bacteria reproduce by:

 
 
 
 

161. Ovary is absent in:

 
 
 
 

162. Viruses are considered to be:

 
 
 
 

163. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

166. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

171. Which is not true for Escherichia coli?

 
 
 
 

172. Fern prothallus produces:

 
 
 
 

173. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

176. Most resistant spore in bacteria is:

 
 
 
 

177. What is streptomycin?

 
 
 
 

178. Fruits are not found in:

 
 
 
 

179. Facultative parasite is:

 
 
 
 

180. First animal pathogenic virus was discovered by:

 
 
 
 

181. Photosynthetic bacteria have:

 
 
 
 

182. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

185. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

187. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

191. Which of the following is a parasitic algae?

 
 
 
 

192. Red rot of sugarcane is caused by :

 
 
 
 

193. Which of the following statements is not correct?

 
 
 
 

194. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

196. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

198. Yeast belongs to class:

 
 
 
 

199. Gymnosperms could also be called as:

 
 
 
 

200. Which is a tautonym?

 
 
 
 

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

 
 
 
 

202. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. What is special feature of fern archegonia?

 
 
 
 

207. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

209. Which of the following applies to Selaginella?

 
 
 
 

210. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

211. Black rust of wheat is caused by:

 
 
 
 

212. Small epidermal swellings due to infection are called :

 
 
 
 

213. Which is an exception to cell theory?

 
 
 
 

214. Yeast is a source of:

 
 
 
 

215. Germination of the seed of Pinus is :

 
 
 
 

216. Some bacteria cannot be killed easily because of:

 
 
 
 

217. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. Most of the lichens are composed of :

 
 
 
 

221. How is moss different from fern?

 
 
 
 

222. Synzoospore is produced in:

 
 
 
 

223. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

225. The truncated cone of HIV consists of:

 
 
 
 

226. The young leaves of Cycas have :

 
 
 
 

227. The sporangia of Selaginella are attached:

 
 
 
 

228. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

230. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

233. Bacteria are found everywhere, except:

 
 
 
 

234. Ginkgo biloba is a:

 
 
 
 

235. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

237. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

240. Spermatophyta are characterized by producing:

 
 
 
 

241. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

243. Lichens are pioneers of vegetation in a :

 
 
 
 

244. Isomorphic type alternation of generation is found in:

 
 
 
 

245. Ergot is obtained from :

 
 
 
 

246. In Cycas:

 
 
 
 

247. LSD is:

 
 
 
 

248. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

251. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

252. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. Downy mildew disease is caused by :

 
 
 
 

256. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

259. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. The most important property of yeast is:

 
 
 
 

264. The two conjugating gametangia of Rhizopus are:

 
 
 
 

265. Lichens are ecologically important because :

 
 
 
 

266. What are plasmids?

 
 
 
 

267. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

271. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

274. Pinus gerardiana is :

 
 
 
 

275. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

277. . Tapetum develops in:

 
 
 
 

278. Water-borne bacterial diseases are:

 
 
 
 

279. What is the role of nitrifying bacteria?

 
 
 
 

280. Which is the correct statement about Selaginella?

 
 
 
 

281. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. The development of sporangium in Selaginella is:

 
 
 
 

285. Pollination drop is:

 
 
 
 

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

 
 
 
 

287. Which is a redwood tree?

 
 
 
 

288. The term stele was given by:

 
 
 
 

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

 
 
 
 

290. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

292. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

295. Antibiotics cure the disease by:

 
 
 
 

296. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

300. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

302. Rhizopus belongs to:

 
 
 
 

303. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

305. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

307. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

309. Cycas is:

 
 
 
 

310. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

313. The stele of Dryopteris is a:

 
 
 
 

314. 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:

 
 
 
 

315. The coralloid roots are :

 
 
 
 

316. Ovules are not found enclosed in ovary in :

 
 
 
 

317. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

319. Ovary is absent in :

 
 
 
 

320. The disease symptom necrosis refers to :

 
 
 
 

321. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

323. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. The phloem of vascular system of Cycas is :

 
 
 
 

327. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

330. Liverworts are included in :

 
 
 
 

331. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

342. In tracheophyta:

 
 
 
 

343. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

347. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

351. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

353. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

355. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

357. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

359. The smallest bacterium is:

 
 
 
 

360. Roots are absent in :

 
 
 
 

361. Funaria is :

 
 
 
 

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

 
 
 
 

363. Citrus canker is caused by:

 
 
 
 

364. In Cycas the fertilization is:

 
 
 
 

365. The nucleus of bacteria is:

 
 
 
 

366. Which statement is wrong in regard to bacteria?

 
 
 
 

367. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

370. Spirogyra differs from moss protonema in having :

 
 
 
 

371. Mycoplasma are:

 
 
 
 

372. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

374. Cycas is :

 
 
 
 

375. The fungi are usually:

 
 
 
 

376. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

378. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

382. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

386. Most common type of conjugation in Spirogyra is :

 
 
 
 

387. Mycoplasma contains:

 
 
 
 

388. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

390. Funaria is a Bryophyta because :

 
 
 
 

391. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

393. The microsporophylls on the cone of Cycas are :

 
 
 
 

394. Sexual reproduction in Rhizopus is by:

 
 
 
 

395. Ulothrix produces :

 
 
 
 

396. The teeth of peristome of Funaria are :

 
 
 
 

397. Aflatoxin is produced as a product in :

 
 
 
 

398. Streptomycin is obtained from:

 
 
 
 

399. Smallpox is caused by:

 
 
 
 

400. Rice, pea, potato are :

 
 
 
 

401.

402. Diploxylic vascular bundles are found in:

 
 
 
 

403. Which is absent from the xylem of Cycas?

 
 
 
 

404. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

408. Lichens are indicators of :

 
 
 
 

409. Fern plants are:

 
 
 
 

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

 
 
 
 

411. The megasporangium of Selaginella is:

 
 
 
 

412. Seeds are characteristically found in :

 
 
 
 

413. Absorptive nutrition is:

 
 
 
 

414. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

416. All algae have:

 
 
 
 

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

 
 
 
 

418. Late blight of potato is caused by :

 
 
 
 

419. True sexuality is not found in:

 
 
 
 

420. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. Red rot of sugarcane is caused by :

 
 
 
 

424. Which is not found in bacteria?

 
 
 
 

425. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

428. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. Cycas plant in appearance resembles :

 
 
 
 

432. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

435. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

438. Male gametes in Dryopteris are:

 
 
 
 

439. Pasteurization of milk involves heating for:

 
 
 
 

440. The fungi used as food are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

446. The largest known bacterium is:

 
 
 
 

447. 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?

 
 
 
 

448. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. All protozoans possess:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Which of the following are included in Tracheophyta?

 
 
 
 

456. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

458. The fungi that grow on wood are called:

 
 
 
 

459. The lichens growing on rocks are called :

 
 
 
 

460. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

462. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. The chief characteristic of class Ascomycetes is:

 
 
 
 

466. The sori in Dryopteris are found on:

 
 
 
 

467. Mycoplasmas are not viruses in nature because:

 
 
 
 

468. Lichens reproduce by :

 
 
 
 

469. Bivalved siliceous shell or frustule occur in:

 
 
 
 

470. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

472. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

474. Selaginella differs from Moss in having:

 
 
 
 

475. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

477. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

482. The root nodules of leguminous plants contain:

 
 
 
 

483. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

486. Fertility of the soil is increased by:

 
 
 
 

487. In Gymnosperms endosperm is a:

 
 
 
 

488. Select the wrong statement:

 
 
 
 

489. Fern prothallus is:

 
 
 
 

490. Mycoplasma was discovered by:

 
 
 
 

491.

492. Streptomyces falls under:

 
 
 
 

493. The largest alga is:

 
 
 
 

494. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

496. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

499. Lichens show :

 
 
 
 

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

 
 
 
 

501. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

504. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

508. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

509. Protistan algae obtain their food as:

 
 
 
 

510. Leprosy is caused by:

 
 
 
 

511. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

512. Virion refers to:

 
 
 
 

513. The gametophyte of moss has distinct phases :

 
 
 
 

514. Milk is converted to curd by:

 
 
 
 

515. Coenogamete is found in:

 
 
 
 

516. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

518. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. The sporophyte of Riccia is :

 
 
 
 

522. Most primitive kind of flower is represented by:

 
 
 
 

523. In a bacteriophage, DNA is present in:

 
 
 
 

524. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. Pythium debaryanum is the causative agent of:

 
 
 
 

529. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. In moss, calyptra is formed from:

 
 
 
 

533. Common phycobiont in a lichen is :

 
 
 
 

534. Most of the algae are :

 
 
 
 

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

 
 
 
 

536. Bacteria differ from viruses in being sensitive to:

 
 
 
 

537. Oswald Tippo’s classification was based on :

 
 
 
 

538. Pythium debaryanum is the causative agent of:

 
 
 
 

539. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

541. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

543. In moss, peristomial teeth are:

 
 
 
 

544. The antibiotic is obtained from:

 
 
 
 

545. Mucilaginous canals in Cycas are found in :

 
 
 
 

546. Desired type of Cycas can be grown by:

 
 
 
 

547. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

549. Reproduction in Rhizopus is:

 
 
 
 

550. Nitrifying bacteria play an important role by converting:

 
 
 
 

551. Viruses are commonly transmitted in plants through:

 
 
 
 

552. Which of the following does not contain chlorophyll?

 
 
 
 

553. To which class Riccia belongs :

 
 
 
 

554. Who named prion?

 
 
 
 

555. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

557. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

559. Most primitive embryophytes are placed in:

 
 
 
 

560. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

564. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

566. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

568. Which of the following is true for viruses?

 
 
 
 

569. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

571. The chloroplast of Chlamydomonas are:

 
 
 
 

572. Enzymes are absent in:

 
 
 
 

573. Placenta in fern is:

 
 
 
 

574. The archegonia of Selaginella are differentiated by:

 
 
 
 

575. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

580. The fern plant is:

 
 
 
 

581. The lambda phase is a:

 
 
 
 

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

 
 
 
 

583. Most primitive group of vascular plants are:

 
 
 
 

584. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

591. Funaria can be differentiated from Cycas :

 
 
 
 

592. Quarantine regulations are concerned with:

 
 
 
 

593. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

595. Which bacteria convert nitrate into nitrogen?

 
 
 
 

596. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

599. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. Seeds are characteristically found in:

 
 
 
 

603. Bacteriophage consists of:

 
 
 
 

604. Bacteriophages have been used as:

 
 
 
 

605. Gametophyte is the main plant body in :

 
 
 
 

606. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. Iodine is obtained from:

 
 
 
 

611. Citrus canker is caused by :

 
 
 
 

612. Fairy ring is the name given to:

 
 
 
 

613. 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?

 
 
 
 

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

 
 
 
 

615. Protists which are diploid reproduce sexually by:

 
 
 
 

616. Meiosis in Ulothrix takes place:

 
 
 
 

617. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

619. The zoospores of Ulothrix are :

 
 
 
 

620. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

625. Cyanophage is a virus that attacks:

 
 
 
 

626. Psilotum is:

 
 
 
 

627. All archaebacteria lack:

 
 
 
 

628. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

630. 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:

 
 
 
 

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

 
 
 
 

632. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

634. Water-net is the name of:

 
 
 
 

635. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

637. Embryophyta includes :

 
 
 
 

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

 
 
 
 

639. The prothallus of fern represents the plant:

 
 
 
 

640. Amoeba is a member of the phylum:

 
 
 
 

641. Which lichen is called Reindeer moss?

 
 
 
 

642. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

644. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

646. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

648. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

650. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

653. The flagella of Chlamydomonas are:

 
 
 
 

654. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

656. The gametophyte of fern bears:

 
 
 
 

657. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

659. 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:

 
 
 
 

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

 
 
 
 

661. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

662. Halophiles are the bacteria that require for growth:

 
 
 
 

663. The fungi are mostly:

 
 
 
 

664. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

667. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

669. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

671. Gram stain is used to:

 
 
 
 

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

 
 
 
 

673. Bryophyta have been placed in cryptogams because:

 
 
 
 

674. Kuru, a human disease is caused by:

 
 
 
 

675. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

677. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

679. Acellular slime mold is/are:

 
 
 
 

680. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

684. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

686. The role of meiosis is for:

 
 
 
 

687. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

690. Which is an edible fungus?

 
 
 
 

691. Azolla growing in paddy fields helps in:

 
 
 
 

692. Reproduction in Cycas takes place by :

 
 
 
 

693. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

695. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

697. Sexual reproduction of lichen is due to :

 
 
 
 

698. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

700. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

703. In moss, conducting tissue is made up of

 
 
 
 

704. Endemic plants are characterised by their:

 
 
 
 

705. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

707. Broad spectrum antibiotic is, which:

 
 
 
 

708. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

710. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

712. Aflatoxin is produced by:

 
 
 
 

713. Sometimes the bacterial cell is enclosed in:

 
 
 
 

714. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

718. The central part of Funaria axis is :

 
 
 
 

719. A gill of Agaricus:

 
 
 
 

720. Bacteria which are spherical are called:

 
 
 
 

721. Clostridium can:

 
 
 
 

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

 
 
 
 

723.

724. Simple polyembryony is found in :

 
 
 
 

725. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

728. The order generally ends with:

 
 
 
 

729. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

731. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

733. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

737. 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:

 
 
 
 

738. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

740. The chloroplast in Ulothrix is :

 
 
 
 

741. What is a vector?

 
 
 
 

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

 
 
 
 

743. Winged seeds are found in :

 
 
 
 

744. Which have the largest antherozoid?

 
 
 
 

745. Facultative saprophyte is:

 
 
 
 

746. Which is a gametophytic tissue?

 
 
 
 

747.

 

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

 
 
 
 

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

 
 
 
 

750. Which of the following lichens is harmful?

 
 
 
 

751. Special feature of pollen grains of Pinus is :

 
 
 
 

752. Funaria is :

 
 
 
 

753. In moss, reduction division occurs in :

 
 
 
 

754. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

756. The zygospore in Rhizopus on germination forms:

 
 
 
 

757. Maximum diversity of life forms occurs in :

 
 
 
 

758. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

760. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. Multicellular and jacketed sex organs are found in :

 
 
 
 

765. Heterospory and ligulate leaves are a feature of:

 
 
 
 

766. Which of the following is sago palm?

 
 
 
 

767. The DNA of E coli is:

 
 
 
 

768. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. Vascular cryptogam is the term used for :

 
 
 
 

772. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

774. Germ theory of disease was proposed by:

 
 
 
 

775. Longest known virus is:

 
 
 
 

776. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

777. The source of litmus is :

 
 
 
 

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

 
 
 
 

779. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

781. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

783. 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:

 
 
 
 

784. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

786. Select the correct statement: (NEET 2016)

 
 
 
 

787. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

789. Which of the following have a prokaryotic cell?

 
 
 
 

790. Pneumonia is caused by:

 
 
 
 

791. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

793. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

794. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

798. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

802. Interferon is a:

 
 
 
 

803. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

805. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

806. Majority of lichens are :

 
 
 
 

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

 
 
 
 

808. Which organisms are the oldest life forms?

 
 
 
 

809. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

818. Lichen show :

 
 
 
 

819. To which country Antony van Leeuwenhoek belong?

 
 
 
 

820. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

822. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

824. The mode of nutrition of bacteria is usually:

 
 
 
 

825. Soil fertility is lost by the activities of:

 
 
 
 

826. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

828. Which fixes atmospheric nitrogen?

 
 
 
 

829. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

831. Pinus microsporophyll bears:

 
 
 
 

832. Typhoid in man is caused by:

 
 
 
 

833. Who discovered cyanophages?

 
 
 
 

834. Ergot of rye is caused by:

 
 
 
 

835. The genetic material of poxvirus is:

 
 
 
 

836. Meristele of fern is:

 
 
 
 

837. 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:

 
 
 
 

838. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

840. Redness of red sea is due to :

 
 
 
 

841. Discovery of penicillin was based on:

 
 
 
 

842. The sporangiophores in Rhizopus are:

 
 
 
 

843. Photoautotrophic bacteria have:

 
 
 
 

844. Chemosynthetic bacteria are:

 
 
 
 

845. Heterocysts are found in :

 
 
 
 

846. Some biologists have used the term Mycetozoa for:

 
 
 
 

847. Which is a fungicide?

 
 
 
 

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

 
 
 
 

849. Which class of Protozoa includes all parasitic forms?

 
 
 
 

850. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

852. An Hfr bacterium is one that contains:

 
 
 
 

853. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

857. The seedless plants which possess vascular tissues are:

 
 
 
 

858. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

860. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. Most appropriate word for protozoans is:

 
 
 
 

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