Quiz_Random

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

 
 
 
 

2. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

4. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

6. The chief characteristic of bryophyta is that :

 
 
 
 

7. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

9. Seeds are characteristically found in:

 
 
 
 

10. In Funaria :

 
 
 
 

11. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

13. Which is a tautonym?

 
 
 
 

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

 
 
 
 

15. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

17. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Vascular tissue is found in :

 
 
 
 

22. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

24. Winged seeds are found in :

 
 
 
 

25. Proembryo in Pinus is :

 
 
 
 

26. The sporophyte of Riccia is represented by :

 
 
 
 

27. Pinus is:

 
 
 
 

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

 
 
 
 

29. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

31. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Chemosynthetic bacteria are:

 
 
 
 

35. The group algae possesses representatives belonging to kingdom:

 
 
 
 

36. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

37. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

47. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Chemosynthetic bacteria are:

 
 
 
 

51. The leaves of Funaria are :

 
 
 
 

52. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

54. Germination of the seed of Pinus is :

 
 
 
 

55. 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:

 
 
 
 

56. Which causes red tide?

 
 
 
 

57. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

59. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

62. Select the correct statement: (NEET 2016)

 
 
 
 

63. Cell walls of Gram-positive bacteria contain:

 
 
 
 

64. Quarantine regulations are concerned with:

 
 
 
 

65. Funaria is :

 
 
 
 

66. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. Antibiotic has been extracted from :

 
 
 
 

71. What is absent in Deuteromycetes?

 
 
 
 

72. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

74. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

76. In Gymnocarpeae the fruiting body is :

 
 
 
 

77. Halophiles are the bacteria that require for growth:

 
 
 
 

78. Aflatoxin is produced by:

 
 
 
 

79. The lambda phase is a:

 
 
 
 

80. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. The sexual reproductive organs in Rhizopus are:

 
 
 
 

84. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. Climbers are found in genus:

 
 
 
 

88. Most primitive embryophytes are placed in :

 
 
 
 

89. Pasteurization of milk involves heating for:

 
 
 
 

90. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

93. In moss, reduction division occurs in :

 
 
 
 

94. Endemic plants are characterised by their:

 
 
 
 

95. Which statement is wrong in regard to bacteria?

 
 
 
 

96. Smut of maize is caused by :

 
 
 
 

97. The roots of Cycas are :

 
 
 
 

98. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

99. Indusium in Dryopteris is:

 
 
 
 

100. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

103. Heterospory is the production of:

 
 
 
 

104. Green plants are classified as:

 
 
 
 

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

 
 
 
 

106. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

108. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. Green plants are classified as :

 
 
 
 

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

 
 
 
 

118. Viruses are commonly transmitted in plants through:

 
 
 
 

119. Most of the lichens are composed of :

 
 
 
 

120. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

125. Select the wrong statement:

 
 
 
 

126. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

130. Which of the following statement is correct?

 
 
 
 

131. The fungi are mostly:

 
 
 
 

132. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

134. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

136. Ergot is obtained from :

 
 
 
 

137. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

139. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

142. 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:

 
 
 
 

143. Fruits are not found in :

 
 
 
 

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

 
 
 
 

145. Ovary is absent in:

 
 
 
 

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

 
 
 
 

147. In a bacteriophage, DNA is present in:

 
 
 
 

148. Among the algae kelps are :

 
 
 
 

149. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

151. Cycas revoluta is widely grown as :

 
 
 
 

152. The spur of Pinus roxburghii has :

 
 
 
 

153. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. Absorptive nutrition is:

 
 
 
 

158. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

160. The most primitive vascular plants is:

 
 
 
 

161. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

164. Which of the following is a heterosporous pteridophyte?

 
 
 
 

165. The development of sporangium in Selaginella is:

 
 
 
 

166. Who discovered heterothallism in fungi?

 
 
 
 

167. Usually, bacteria reproduce by:

 
 
 
 

168. Which is not true for Escherichia coli?

 
 
 
 

169. Which is the nuclear material in bacteria?

 
 
 
 

170. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

172. Saccharomyces ludwigii ascus produces:

 
 
 
 

173. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

175. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

181. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

185. The genetic material of poxvirus is:

 
 
 
 

186. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Genetic material of TMV is:

 
 
 
 

190. Synzoospore is produced in:

 
 
 
 

191. . Tapetum develops in:

 
 
 
 

192. Streptomyces falls under:

 
 
 
 

193. The disease apple scab is caused by:

 
 
 
 

194. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

196. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. Plasmids are:

 
 
 
 

207. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

209. Nannandria are:

 
 
 
 

210. Pneumonia is caused by:

 
 
 
 

211. Lichens form the first community in

 
 
 
 

212. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

218. Botulinum toxin effects:

 
 
 
 

219. Leaf spot of groundnut is caused by :

 
 
 
 

220. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Siphonogamy is found in:

 
 
 
 

224. Detailed study of bacteriophage was made by:

 
 
 
 

225. Roots are absent in :

 
 
 
 

226. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

227. The seedless plants which possess vascular tissues are:

 
 
 
 

228. Cycas is different from mango in :

 
 
 
 

229. Sporophyte of fern is:

 
 
 
 

230. Bacteria are found everywhere, except:

 
 
 
 

231. In Herpes virus DNA is:

 
 
 
 

232. Fruits are not found in:

 
 
 
 

233. Ovules are not found enclosed in ovary in :

 
 
 
 

234. Placenta in fern is:

 
 
 
 

235. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

240. Who among the following discovered virus?

 
 
 
 

241. Diploxylic vascular bundles are found in:

 
 
 
 

242. The order generally ends with:

 
 
 
 

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

 
 
 
 

244. In Pteris, the roots are:

 
 
 
 

245. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

246. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

247. Milk is converted to curd by:

 
 
 
 

248. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

251. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

254. Which of the following have algal zone?

 
 
 
 

255. Circular DNA is seen in:

 
 
 
 

256. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

258. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

260. Lichens reproduce by :

 
 
 
 

261. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

266. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

268. Which is a redwood tree?

 
 
 
 

269. Bacteria are placed under:

 
 
 
 

270. In Selaginella, the microsporangia are:

 
 
 
 

271. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

273. 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:

 
 
 
 

274. What are Cyanobacteria?

 
 
 
 

275. Pasteurized milk is:

 
 
 
 

276. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

278. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. Iodine is obtained from:

 
 
 
 

282. In moss, sporophyte is formed on:

 
 
 
 

283. Nitrifying bacteria play an important role by converting:

 
 
 
 

284. Mycoplasma are sensitive to:

 
 
 
 

285. Embryophyta includes :

 
 
 
 

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

 
 
 
 

287. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

290. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

293. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

297. Mostly type of zygospore in Ulothrix is:

 
 
 
 

298. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

300. Longest known virus is:

 
 
 
 

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

 
 
 
 

302. Yeast is a source of:

 
 
 
 

303. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

305. Virus and bacteriophage are made-up of:

 
 
 
 

306. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

311. Multicellular and jacketed sex organs are found in :

 
 
 
 

312. Which is an exception to cell theory?

 
 
 
 

313. The chloroplast in Ulothrix is :

 
 
 
 

314. What is a vector?

 
 
 
 

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

 
 
 
 

316. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

318. All algae have:

 
 
 
 

319. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

321. Tautonyms are illegitimate in:

 
 
 
 

322. Fertility of the soil is increased by:

 
 
 
 

323. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

325. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

327. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

329. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

330. The chief characteristic of class Ascomycetes is:

 
 
 
 

331. Botulism is a:

 
 
 
 

332. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. The coralloid roots are :

 
 
 
 

336. Lichens show :

 
 
 
 

337. The tree fern is:

 
 
 
 

338. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

340. The sporangium of fern contains nearly:

 
 
 
 

341. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

345. Gametophyte is the main plant body in :

 
 
 
 

346. Parmelia belongs to :

 
 
 
 

347. Spermatophyta are characterized by producing:

 
 
 
 

348. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

350. The alga, Spirogyra are found in :

 
 
 
 

351. 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:

 
 
 
 

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

 
 
 
 

353. Cryptogams include :

 
 
 
 

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

 
 
 
 

355. Leprosy is caused by:

 
 
 
 

356. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

359. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

361. Virion refers to:

 
 
 
 

362. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

365. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

367. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

369. Azolla growing in paddy fields helps in:

 
 
 
 

370. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

373. In Cycas:

 
 
 
 

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

 
 
 
 

375. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

376. Protistan algae obtain their food as:

 
 
 
 

377. Enzymes are absent in:

 
 
 
 

378. Which condition is found in Cycas?

 
 
 
 

379. 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?

 
 
 
 

380. 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:

 
 
 
 

381. Nitrogen-fixing bacteria may be located:

 
 
 
 

382. What are plasmids?

 
 
 
 

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

 
 
 
 

384. Mycoplasma are:

 
 
 
 

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

 
 
 
 

386. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

388. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

390. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

392. The gametophyte of fern bears:

 
 
 
 

393. Ethylene oxide is widely used to:

 
 
 
 

394. Germ theory of disease was proposed by:

 
 
 
 

395. 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:

 
 
 
 

396. Fruits are not found in Cycas because:

 
 
 
 

397. The fern plant is:

 
 
 
 

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

 
 
 
 

399. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

401.

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

 
 
 
 

403. The upper region of moss capsule is :

 
 
 
 

404. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

410. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Soil fertility is lost by the activities of:

 
 
 
 

414. Ovules are not found enclosed in ovary in :

 
 
 
 

415. The spermatozoids of Cycas are :

 
 
 
 

416. Pinus microsporophyll bears:

 
 
 
 

417. Antibiotics cure the disease by:

 
 
 
 

418. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

419. Azolla and Salvinia both are:

 
 
 
 

420. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

422. Which of the following shows heterotrichous habit?

 
 
 
 

423. Disease resistant plant varieties can be produced by :

 
 
 
 

424. Metulae are found in:

 
 
 
 

425. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

427. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

429. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. The stele of Dryopteris is a:

 
 
 
 

434. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

436. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

437. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

439. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

441. Total parasites belong to:

 
 
 
 

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

 
 
 
 

443. Bacteria are considered to be plants because they:

 
 
 
 

444. Reserve food in Euglena is:

 
 
 
 

445. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

453. Triple antigen injection or vaccine are for:

 
 
 
 

454. Protozoans are considered animals because these are:

 
 
 
 

455. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

461. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. Clostridium can:

 
 
 
 

466. Male gametophyte of Selaginella is found:

 
 
 
 

467. Pteridophytes are also known as :

 
 
 
 

468. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. Select the wrong statement:

 
 
 
 

475. The archegonia of Selaginella are differentiated by:

 
 
 
 

476. Viruses have:

 
 
 
 

477. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

479. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. Most common type of conjugation in Spirogyra is :

 
 
 
 

483. The sporangiophores in Rhizopus are:

 
 
 
 

484. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. Methanogens belong to:

 
 
 
 

489. All archaebacteria lack:

 
 
 
 

490. Aflatoxin is produced as a product in :

 
 
 
 

491. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

493. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

495. Funaria is :

 
 
 
 

496. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

499. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

501. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

504. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

506. 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:

 
 
 
 

507. Pasteur is famous for his:

 
 
 
 

508. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

511. The mycelium of Rhizopus is:

 
 
 
 

512. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

514. The phloem of vascular system of Cycas is :

 
 
 
 

515. Discovery of penicillin was based on:

 
 
 
 

516. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

518. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

522. Which one of the following statement is wrong?

 
 
 
 

523. The rhizoids of Funaria are :

 
 
 
 

524. In moss, peristomial teeth are:

 
 
 
 

525. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

527. The photosynthetic protists are:

 
 
 
 

528. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

531. The largest alga is:

 
 
 
 

532. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

535. Which fixes atmospheric nitrogen?

 
 
 
 

536. Lichens are ecologically important because :

 
 
 
 

537. Citrus canker is caused by :

 
 
 
 

538. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

541. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

543. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

544. 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?

 
 
 
 

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

 
 
 
 

546. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

548. Citrus canker is caused by:

 
 
 
 

549. The fungi used as food are:

 
 
 
 

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

 
 
 
 

551. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

552. Which of the following is a parasitic algae?

 
 
 
 

553. Penicillin is obtained from:

 
 
 
 

554. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

559. Which of the following is sago palm?

 
 
 
 

560. In moss, conducting tissue is made up of

 
 
 
 

561. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

563. Generic name of mango is:

 
 
 
 

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

 
 
 
 

565. In moss, calyptra is formed from:

 
 
 
 

566. The plants of Funaria grow :

 
 
 
 

567. Which is an edible fungus?

 
 
 
 

568. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

570. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

573. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

575. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

577. Which is not found in bacteria?

 
 
 
 

578. Yeast grows more rapidly in:

 
 
 
 

579. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

580. The term stele was given by:

 
 
 
 

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

 
 
 
 

582. Which of the following have a prokaryotic cell?

 
 
 
 

583. Rice, pea, potato are :

 
 
 
 

584. Ergot of rye is caused by:

 
 
 
 

585. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

586. What is the role of nitrifying bacteria?

 
 
 
 

587. Banana bunchy top is caused by :

 
 
 
 

588. The two conjugating gametangia of Rhizopus are:

 
 
 
 

589. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

591. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

593. Which is a gametophytic tissue?

 
 
 
 

594. The sporophyte of Riccia is :

 
 
 
 

595. Standard size of a herbarium sheet is:

 
 
 
 

596. Viroids have:

 
 
 
 

597. Who named prion?

 
 
 
 

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

 
 
 
 

599. Heterotrichous habit means :

 
 
 
 

600. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

602. Lichens are indicators of :

 
 
 
 

603. The lichens growing on rocks are called :

 
 
 
 

604. Pollination in Pinus is :

 
 
 
 

605. In tracheophyta:

 
 
 
 

606. Pollination drop is:

 
 
 
 

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

 
 
 
 

608. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

610. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

613. The leafy fern plant represents the:

 
 
 
 

614. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

616. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

618. Sexual reproduction in Rhizopus is by:

 
 
 
 

619. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

622. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

625. Cycas is:

 
 
 
 

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

 
 
 
 

627. To which country Antony van Leeuwenhoek belong?

 
 
 
 

628. All protozoans possess:

 
 
 
 

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

 
 
 
 

630. The antibiotic is obtained from:

 
 
 
 

631. Little leaf disease of Brinjal is caused by:

 
 
 
 

632. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

634. Liverworts are included in :

 
 
 
 

635. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

638. Ulothrix produces :

 
 
 
 

639. Bryophyta have a special character from other plants:

 
 
 
 

640. Meristele of fern is:

 
 
 
 

641. Funaria are commonly found :

 
 
 
 

642. Vascular cryptogam is the term used for :

 
 
 
 

643. Pseudomycelium is found in:

 
 
 
 

644. The gametophyte produced by apospory is :

 
 
 
 

645. Facultative parasite is:

 
 
 
 

646. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

650. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

652. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

655. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. Amoeba is a member of the phylum:

 
 
 
 

659. Redness of red sea is due to :

 
 
 
 

660. Cocci types of bacteria are:

 
 
 
 

661. Interferon is a:

 
 
 
 

662. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

664. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

666. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

668. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

670. In moss, stomata are found:

 
 
 
 

671. Acellular slime mold is/are:

 
 
 
 

672. Who discovered cyanophages?

 
 
 
 

673. Mycoplasmas are not viruses in nature because:

 
 
 
 

674. Fern prothallus is:

 
 
 
 

675. Photosynthetic protists belong to:

 
 
 
 

676. Lichen show :

 
 
 
 

677. Which of the following is true for Selaginella?

 
 
 
 

678. LSD is:

 
 
 
 

679. The orders generally have the uniform endings:

 
 
 
 

680. 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?

 
 
 
 

681. Seeds are characteristically found in :

 
 
 
 

682. Mycoplasma contains:

 
 
 
 

683. The fungi are usually:

 
 
 
 

684. Why is Cycas called a living fossil?

 
 
 
 

685. In Cycas the fertilization is:

 
 
 
 

686.

 

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

 
 
 
 

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

 
 
 
 

689. Late blight of potato is caused by:

 
 
 
 

690. Which is the correct statement about Selaginella?

 
 
 
 

691. Pinus gerardiana is :

 
 
 
 

692. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

699. Photosynthetic bacteria have:

 
 
 
 

700. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

702. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. Which of the following statements is not correct?

 
 
 
 

706. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

708. Sporophyte of Funaria is :

 
 
 
 

709. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

716. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

718. The tallest moss in the world is :

 
 
 
 

719. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

721. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

723. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

725. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

726. Cellular slime mold is:

 
 
 
 

727. Pteridophyta are also called:

 
 
 
 

728. Which one of the following is a monocot?

 
 
 
 

729. Coenogamete is found in:

 
 
 
 

730. Number of capsomeres forming capsid of TMV is:

 
 
 
 

731. Funaria can be differentiated from Cycas :

 
 
 
 

732.

733. Red rot of sugarcane is caused by:

 
 
 
 

734. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

736. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

742. Transfusion tissue is present in the leaflet of:

 
 
 
 

743. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

746.

747. The largest known bacterium is:

 
 
 
 

748. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

755. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

756. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

758. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

762. The flagella of Chlamydomonas are:

 
 
 
 

763. Isomorphic type alternation of generation is found in:

 
 
 
 

764. Spermatophyta are characterized by producing:

 
 
 
 

765. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

768. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

770. The megasporangium of Selaginella is:

 
 
 
 

771. Woody climbers are known as :

 
 
 
 

772. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

774. In binomial system most of the words are:

 
 
 
 

775. An Hfr bacterium is one that contains:

 
 
 
 

776. Water-net is the name of:

 
 
 
 

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

 
 
 
 

778. In Funaria, calyptra is derived from :

 
 
 
 

779. Lichens reproduce by :

 
 
 
 

780. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

782. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

784. Which is a fungicide?

 
 
 
 

785. The central part of Funaria axis is :

 
 
 
 

786. Ovary is absent in :

 
 
 
 

787. Sometimes the bacterial cell is enclosed in:

 
 
 
 

788. Which of the following does not contain chlorophyll?

 
 
 
 

789. Cycas is :

 
 
 
 

790. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

792. Most of the algae are :

 
 
 
 

793. Water bloom is generally caused by :

 
 
 
 

794. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

798. Water-borne bacterial diseases are:

 
 
 
 

799. The zoospores of Ulothrix are :

 
 
 
 

800. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

802. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

804. Maximum diversity of life forms occurs in :

 
 
 
 

805. Fruiting body of lichens is :

 
 
 
 

806. Centric discoid form of diatom is:

 
 
 
 

807. Viruses are considered to be:

 
 
 
 

808. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

811. How is moss different from fern?

 
 
 
 

812. Rhizopus belongs to:

 
 
 
 

813. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

815. The teeth of peristome of Funaria are :

 
 
 
 

816. The chromosomal number in:

 
 
 
 

817. Mixed cropping helps :

 
 
 
 

818. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

821. Which group of algae have an incipient nucleus?

 
 
 
 

822. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

824. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

828. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

832. Smallpox is caused by:

 
 
 
 

833. Winged pollen grains are found in :

 
 
 
 

834. Reproduction in Rhizopus is:

 
 
 
 

835. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. Mycoplasma is different from bacteria due to:

 
 
 
 

840. Cyanophage is a virus that attacks:

 
 
 
 

841. The disease symptom necrosis refers to :

 
 
 
 

842. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

844. Oswald Tippo’s classification was based on :

 
 
 
 

845. The archegonia in Selaginella develop on:

 
 
 
 

846. Which of the following is a monocot?

 
 
 
 

847. Common phycobiont in a lichen is :

 
 
 
 

848. The chloroplast of Chlamydomonas are:

 
 
 
 

849. Embryo formation is not known in :

 
 
 
 

850. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

852. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

855. The development of Selaginella embryo is:

 
 
 
 

856. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

858. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

860. The middle sterile part of capsule is called:

 
 
 
 

861. In angiosperms double fertilization represents:

 
 
 
 

862. Economic importance of bacteria lies in their being:

 
 
 
 

863. Bryophyta have been placed in cryptogams because:

 
 
 
 

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