Quiz_Random

1. 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?

 
 
 
 

2. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

4. The antibiotic is obtained from:

 
 
 
 

5. First animal pathogenic virus was discovered by:

 
 
 
 

6. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

8. Which is a gametophytic tissue?

 
 
 
 

9. What are Cyanobacteria?

 
 
 
 

10. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Facultative parasite is:

 
 
 
 

16. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Which condition is found in Cycas?

 
 
 
 

25. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

27. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Funaria are commonly found :

 
 
 
 

31. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

33. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

41. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

46. Which is not true for Escherichia coli?

 
 
 
 

47. Select the correct statement: (NEET 2016)

 
 
 
 

48. All archaebacteria lack:

 
 
 
 

49. Funaria can be differentiated from Cycas :

 
 
 
 

50. Bacteria were first discovered by:

 
 
 
 

51. Number of capsomeres forming capsid of TMV is:

 
 
 
 

52. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

54. Cycas revoluta is widely grown as :

 
 
 
 

55. Simple polyembryony is found in :

 
 
 
 

56. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

58. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

60. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

62. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

64. Embryophyta includes :

 
 
 
 

65. Zoogametes are not found in:

 
 
 
 

66. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

68. Ovules are not found enclosed in ovary of:

 
 
 
 

69. Mycoplasma are:

 
 
 
 

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

 
 
 
 

71. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

73. Winged pollen grains are found in :

 
 
 
 

74. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

82. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

84. The gametophyte produced by apospory is :

 
 
 
 

85. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

87. Which is an exception to cell theory?

 
 
 
 

88. Winged seeds are found in :

 
 
 
 

89. What is a vector?

 
 
 
 

90. Lichens form the first community in

 
 
 
 

91. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

96. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

98. Sometimes the bacterial cell is enclosed in:

 
 
 
 

99. Black rust of wheat is caused by:

 
 
 
 

100. Pasteurized milk is:

 
 
 
 

101. Mostly type of zygospore in Ulothrix is:

 
 
 
 

102. Late blight of potato is caused by :

 
 
 
 

103. Selaginella differs from Moss in having:

 
 
 
 

104. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

109. Club moss and Peat moss belong to:

 
 
 
 

110. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

111. Rhizoids of Riccia are :

 
 
 
 

112. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

115. Etiology includes the study of :

 
 
 
 

116. Which of the following have algal zone?

 
 
 
 

117. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

119. Why is Cycas called a living fossil?

 
 
 
 

120. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

124. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. Fruits are not found in :

 
 
 
 

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

 
 
 
 

130. The chief characteristic of class Ascomycetes is:

 
 
 
 

131. Metulae are found in:

 
 
 
 

132. Which is a fungicide?

 
 
 
 

133. Virion refers to:

 
 
 
 

134. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

140. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

144. In Cycas:

 
 
 
 

145. Halophiles are the bacteria that require for growth:

 
 
 
 

146. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

150. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

153. The lambda phase is a:

 
 
 
 

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

 
 
 
 

155. Fruits are not found in Cycas because:

 
 
 
 

156. Which of the following is sago palm?

 
 
 
 

157. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

159. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

161. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

163. Water-net is the name of:

 
 
 
 

164. Cycas is :

 
 
 
 

165. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

169. In Cycas microsporangia are borne on:

 
 
 
 

170. The similarity between cyanobacteria and bacteria:

 
 
 
 

171. Heterocysts are found in :

 
 
 
 

172. Who named prion?

 
 
 
 

173. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

175. Photosynthetic bacteria have:

 
 
 
 

176. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

182. Bentham and Hooker placed gymnosperms:

 
 
 
 

183. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

186. The fungi are usually:

 
 
 
 

187. Which of the following is a parasitic algae?

 
 
 
 

188. Sexual reproduction of lichen is due to :

 
 
 
 

189. The leaves of Funaria are :

 
 
 
 

190. The photosynthetic protists are:

 
 
 
 

191. Green plants are classified as :

 
 
 
 

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

 
 
 
 

193. Penicillin was discovered by:

 
 
 
 

194. Fern plants are:

 
 
 
 

195. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

197. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. Pinus is:

 
 
 
 

201. Embryophyta includes:

 
 
 
 

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

 
 
 
 

203. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. Endemic plants are characterised by their:

 
 
 
 

207. In Selaginella, the microsporangia are:

 
 
 
 

208. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

210. What is absent in Deuteromycetes?

 
 
 
 

211. The nucleus of bacteria is:

 
 
 
 

212. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

213. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

215. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

217. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

219. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

222. Plasmids are:

 
 
 
 

223. What is mycorrhiza?

 
 
 
 

224. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

228. Majority of lichens are :

 
 
 
 

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

 
 
 
 

230. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

233. The sporophyte of Riccia is :

 
 
 
 

234. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

236. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

239. Lichens are the indicator of pollution :

 
 
 
 

240. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

242. The flagella of Chlamydomonas are:

 
 
 
 

243. 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:

 
 
 
 

244. Mycoplasma was discovered by:

 
 
 
 

245. Ergot of rye is caused by:

 
 
 
 

246. Ectocarpus produces:

 
 
 
 

247. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

249. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

252. 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:

 
 
 
 

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

 
 
 
 

254. Ovules are not found enclosed in ovary in :

 
 
 
 

255. Fern prothallus produces:

 
 
 
 

256. In Cycas the fertilization is:

 
 
 
 

257. . Tapetum develops in:

 
 
 
 

258. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

262. Climbers are found in genus:

 
 
 
 

263. Some bacteria cannot be killed easily because of:

 
 
 
 

264. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

266. The ferns are usually found:

 
 
 
 

267. How is moss different from fern?

 
 
 
 

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

 
 
 
 

269. Sporophyte of Funaria is :

 
 
 
 

270. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

272. Ovary is absent in :

 
 
 
 

273. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

277. Synzoospore is produced in:

 
 
 
 

278. Heterospory is the production of:

 
 
 
 

279. Smallpox is caused by:

 
 
 
 

280. The fern plant is:

 
 
 
 

281. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

286. Which of the following shows heterotrichous habit?

 
 
 
 

287. Woody climbers are known as :

 
 
 
 

288. Azolla growing in paddy fields helps in:

 
 
 
 

289. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

291. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

293. Interferon is a:

 
 
 
 

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

 
 
 
 

295. Which is the correct statement about Selaginella?

 
 
 
 

296. Chief constituents of bordeaux mixture are :

 
 
 
 

297.

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

 
 
 
 

299. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

300. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

302. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

306. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. Early blight of potato is caused by:

 
 
 
 

310. Desired type of Cycas can be grown by:

 
 
 
 

311. Viruses are considered to be:

 
 
 
 

312. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

314. Where does meiosis occur in yeast?

 
 
 
 

315. The sori in Dryopteris are found on:

 
 
 
 

316. Oswald Tippo’s classification was based on :

 
 
 
 

317. Which of the following statements is not correct?

 
 
 
 

318. The zoospores of Ulothrix are :

 
 
 
 

319. Fern prothallus is:

 
 
 
 

320. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

324. Vegetative reproduction in Cycas is by means of :

 
 
 
 

325. Reproduction in Cycas takes place by :

 
 
 
 

326. Placenta in fern is:

 
 
 
 

327. Citrus canker is caused by:

 
 
 
 

328. Water-borne bacterial diseases are:

 
 
 
 

329. Gram stain is used to:

 
 
 
 

330. Cycas is similar to a mustard plant :

 
 
 
 

331. Who discovered heterothallism in fungi?

 
 
 
 

332. The young leaves of Cycas have :

 
 
 
 

333. 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?

 
 
 
 

334. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

336. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

338. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

339. Azolla and Salvinia both are:

 
 
 
 

340. The coralloid roots are :

 
 
 
 

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

 
 
 
 

342. Asexual reproductive body of Volvox is called:

 
 
 
 

343. The plants of Funaria grow :

 
 
 
 

344. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

346. LSD is:

 
 
 
 

347. Nannandria are:

 
 
 
 

348. Tautonyms are illegitimate in:

 
 
 
 

349. Bacteria differ from viruses in being sensitive to:

 
 
 
 

350. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

353. Which of the following is a monocot?

 
 
 
 

354. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

358. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. Red rot of sugarcane is caused by :

 
 
 
 

362. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

366. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

370. Saccharomyces is used in:

 
 
 
 

371. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

372. The source of litmus is :

 
 
 
 

373. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

376. Which group of algae have an incipient nucleus?

 
 
 
 

377. Isomorphic type alternation of generation is found in:

 
 
 
 

378. Multicellular and jacketed sex organs are found in :

 
 
 
 

379. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

383. Protozoans are considered animals because these are:

 
 
 
 

384. The largest alga is:

 
 
 
 

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

 
 
 
 

386. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

390. Lichens are pioneers of vegetation in a :

 
 
 
 

391. The prothallus of fern is:

 
 
 
 

392. In moss, sporogenous tissue arises from:

 
 
 
 

393. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

395. Acetobacter is useful in:

 
 
 
 

396. Parmelia belongs to :

 
 
 
 

397. Enzymes are absent in:

 
 
 
 

398. Each chloroplast in Spirogyra bears :

 
 
 
 

399. Generic name of mango is:

 
 
 
 

400. Who among the following discovered virus?

 
 
 
 

401. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

403. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

405. Which fixes atmospheric nitrogen?

 
 
 
 

406. The term stele was given by:

 
 
 
 

407. Fruits are not found in:

 
 
 
 

408. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

411. Rhizopus and yeast are usually:

 
 
 
 

412. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

414. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

417. In moss, calyptra is formed from:

 
 
 
 

418. Which of the following lichens is harmful?

 
 
 
 

419. The spur of Pinus roxburghii has :

 
 
 
 

420. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. In tracheophyta:

 
 
 
 

424. Most of the algae are :

 
 
 
 

425. Pteridophytes are also known as :

 
 
 
 

426. Which of the following are absent in Mycoplasma?

 
 
 
 

427. Economic importance of bacteria lies in their being:

 
 
 
 

428. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. Lichens show :

 
 
 
 

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

 
 
 
 

433. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

435. Viruses have:

 
 
 
 

436. Reproduction in Rhizopus is:

 
 
 
 

437. Some diseases caused by bacteria are:

 
 
 
 

438. Redness of red sea is due to :

 
 
 
 

439. In moss, reduction division occurs in :

 
 
 
 

440. The fungi used as food are:

 
 
 
 

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

 
 
 
 

442. The central part of Funaria axis is :

 
 
 
 

443. Lichens are ecologically important because :

 
 
 
 

444. Diphtheria is caused by:

 
 
 
 

445. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

448. True sexuality is not found in:

 
 
 
 

449. Mycoplasmas are not viruses in nature because:

 
 
 
 

450. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

452. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

454. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

456. Spermatophyta are characterized by producing:

 
 
 
 

457. Which of the following have a prokaryotic cell?

 
 
 
 

458. The fungi are mostly:

 
 
 
 

459. Green plants are classified as:

 
 
 
 

460. Bacteriophages have been used as:

 
 
 
 

461. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

464. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

467. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

469. Ergot is obtained from :

 
 
 
 

470. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

476. Iodine is obtained from:

 
 
 
 

477. Soil fertility is lost by the activities of:

 
 
 
 

478. In moss, stomata are found:

 
 
 
 

479. Cleavage polyembryony is found in :

 
 
 
 

480. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

482. Pinus gerardiana is :

 
 
 
 

483. Streptomycin is obtained from:

 
 
 
 

484. Infective part of virus was discovered by:

 
 
 
 

485. Siphonogamy is found in:

 
 
 
 

486. Banana bunchy top is caused by :

 
 
 
 

487. Which organisms are the oldest life forms?

 
 
 
 

488. Anoxygenic photosynthesis occurs in:

 
 
 
 

489. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

492. Diploxylic vascular bundles are found in:

 
 
 
 

493. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

496. The vascular bundles of Cycas stem are :

 
 
 
 

497. Cycas is:

 
 
 
 

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

 
 
 
 

499. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

504. Enteric bacteria are those bacteria that live:

 
 
 
 

505. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

507.

 

508. Pneumonia is caused by:

 
 
 
 

509. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

511. 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?

 
 
 
 

512. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

513. Pythium debaryanum is the causative agent of:

 
 
 
 

514. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

516. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

517. The sporangium of fern contains nearly:

 
 
 
 

518. Lichen show :

 
 
 
 

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

 
 
 
 

520. The roots of Cycas are :

 
 
 
 

521. The middle sterile part of capsule is called:

 
 
 
 

522. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

524. Ovary is absent in:

 
 
 
 

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

 
 
 
 

526. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

529. Spores of which plants have chloroplast:

 
 
 
 

530. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

532. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

534. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

536. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

539. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

541. Which statement is wrong in regard to bacteria?

 
 
 
 

542. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

544. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

545. Fern phloem lacks:

 
 
 
 

546. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Pasteurization of milk involves heating for:

 
 
 
 

550. What is the role of nitrifying bacteria?

 
 
 
 

551. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

554. Lichens reproduce by :

 
 
 
 

555. Methanogens belong to:

 
 
 
 

556. Clostridium can:

 
 
 
 

557. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

559. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

561. Rhizophore of Selaginella is:

 
 
 
 

562. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

563. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

565. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

567. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. The two conjugating gametangia of Rhizopus are:

 
 
 
 

573. Seeds are characteristically found in :

 
 
 
 

574. In moss, peristomial teeth are:

 
 
 
 

575. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. The DNA of E coli is:

 
 
 
 

579. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

581. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

584. The archegonia in Selaginella develop on:

 
 
 
 

585. Which lichen is called Reindeer moss?

 
 
 
 

586. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

588. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

590. In binomial system most of the words are:

 
 
 
 

591. Bivalved siliceous shell or frustule occur in:

 
 
 
 

592. In Funaria :

 
 
 
 

593. E coli is a:

 
 
 
 

594. 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:

 
 
 
 

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

 
 
 
 

596. Common phycobiont in a lichen is :

 
 
 
 

597. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

599. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

605. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. All protozoans possess:

 
 
 
 

611. The most primitive vascular plants is:

 
 
 
 

612. Bryophyta have a special character from other plants:

 
 
 
 

613. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

615. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

621. Meristele of fern is:

 
 
 
 

622. Botulinum toxin effects:

 
 
 
 

623. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

629. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

631. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

633. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

638. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. The group algae possesses representatives belonging to kingdom:

 
 
 
 

645. Leprosy is caused by:

 
 
 
 

646. Which of the following does not contain chlorophyll?

 
 
 
 

647. Most primitive embryophytes are placed in :

 
 
 
 

648. Iodine is obtained from :

 
 
 
 

649. The gametophyte of fern bears:

 
 
 
 

650. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

654. Cycas is different from mango in :

 
 
 
 

655. The leaf of Cycas shows:

 
 
 
 

656. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

658. Most of the lichens are composed of :

 
 
 
 

659. Nitrifying bacteria play an important role by converting:

 
 
 
 

660. An Hfr bacterium is one that contains:

 
 
 
 

661. The zygospore in Rhizopus on germination forms:

 
 
 
 

662. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

664. To which class Riccia belongs :

 
 
 
 

665. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

667. Wine turns sour because of:

 
 
 
 

668. Bacteria are found everywhere, except:

 
 
 
 

669. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

671. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

674. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

676. 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:

 
 
 
 

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

 
 
 
 

678. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

682. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

688. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

689. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

692. In Herpes virus DNA is:

 
 
 
 

693. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

695. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

697. Longest known virus is:

 
 
 
 

698. Centric discoid form of diatom is:

 
 
 
 

699. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

701.

702. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

704. Sleeping sickness disease in man is caused by:

 
 
 
 

705. The fungi that grow on wood are called:

 
 
 
 

706. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

709. Ginkgo biloba is a:

 
 
 
 

710. The leafy fern plant represents the:

 
 
 
 

711. Broad spectrum antibiotic is, which:

 
 
 
 

712. Ovules are not found enclosed in ovary in :

 
 
 
 

713. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

714. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

716. Milk is converted to curd by:

 
 
 
 

717. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

719. Ethylene oxide is widely used to:

 
 
 
 

720. Heterotrichous habit means :

 
 
 
 

721. Psilotum is:

 
 
 
 

722. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

724. Helotism word is used for the symbiosis between :

 
 
 
 

725. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

727. Most primitive embryophytes are placed in:

 
 
 
 

728. Bacteria which are spherical are called:

 
 
 
 

729. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

731. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

733. 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:

 
 
 
 

734. The archegonia of Selaginella are differentiated by:

 
 
 
 

735. The gametophyte of fern is as:

 
 
 
 

736. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

740. The microsporophylls on the cone of Cycas are :

 
 
 
 

741. Who discovered cyanophages?

 
 
 
 

742. The tallest moss in the world is :

 
 
 
 

743. Pinus microsporophyll bears:

 
 
 
 

744. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

747. The Rhizopus is:

 
 
 
 

748. Which is a tautonym?

 
 
 
 

749. The disease apple scab is caused by:

 
 
 
 

750. The stele of Dryopteris is a:

 
 
 
 

751. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. In dinoflagellates, the two flagella are:

 
 
 
 

755. Amoeba is a member of the phylum:

 
 
 
 

756. Cyathia is characterized by:

 
 
 
 

757. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

758. Smut of maize is caused by :

 
 
 
 

759. The root nodules of leguminous plants contain:

 
 
 
 

760. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

762. Which causes red tide?

 
 
 
 

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

 
 
 
 

764. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

766. 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?

 
 
 
 

767. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

770. Vascular cryptogams is the term used for:

 
 
 
 

771. Rhizopus belongs to:

 
 
 
 

772. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

774. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

776. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

778. The antherozoids of Funaria are :

 
 
 
 

779. Aflatoxin is produced by:

 
 
 
 

780. The order generally ends with:

 
 
 
 

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

 
 
 
 

782. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

785. The lichens growing on rocks are called :

 
 
 
 

786. In Pteris, the roots are:

 
 
 
 

787. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

789. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

794. Pollination drop is:

 
 
 
 

795. Mucilaginous canals in Cycas are found in :

 
 
 
 

796. Vascular cryptogam is the term used for :

 
 
 
 

797. The orders generally have the uniform endings:

 
 
 
 

798. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

800. In a diplontic life cycle:

 
 
 
 

801. 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:

 
 
 
 

802. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

805. The role of meiosis is for:

 
 
 
 

806. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

808. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

811. Pollination in Pinus is :

 
 
 
 

812. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

814. The sexual reproductive organs in Rhizopus are:

 
 
 
 

815. Vascular tissue is found in :

 
 
 
 

816. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

820. Which of the following statement is correct?

 
 
 
 

821. Most common type of conjugation in Spirogyra is :

 
 
 
 

822. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

824. What is streptomycin?

 
 
 
 

825. The smallest bacterium is:

 
 
 
 

826. Which of the following is true for Selaginella?

 
 
 
 

827. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

829. Cyanophage is a virus that attacks:

 
 
 
 

830. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

832. Viruses are commonly transmitted in plants through:

 
 
 
 

833. Small epidermal swellings due to infection are called :

 
 
 
 

834. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

837. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

839. The gametophyte of moss has distinct phases :

 
 
 
 

840. The chromosomal number in:

 
 
 
 

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

 
 
 
 

842. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

843. In Gymnosperms endosperm is a:

 
 
 
 

844. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

846. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

852.

853. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

856. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

859. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

862. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

864. Which one of the following is a monocot?