Quiz_Random

1. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

3. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Synzoospore is produced in:

 
 
 
 

7. Protozoans are considered animals because these are:

 
 
 
 

8. The archegonia in Selaginella develop on:

 
 
 
 

9. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

11. The spermatozoids of Cycas are :

 
 
 
 

12. Which of the following are absent in Mycoplasma?

 
 
 
 

13. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

19. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

21. Vascular cryptogams is the term used for:

 
 
 
 

22. Tautonyms are illegitimate in:

 
 
 
 

23.

 

24.

25. The largest known bacterium is:

 
 
 
 

26. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

27. Rhizophore of Selaginella is:

 
 
 
 

28. The middle sterile part of capsule is called:

 
 
 
 

29. The chromosomal number in:

 
 
 
 

30. Aflatoxin is produced as a product in :

 
 
 
 

31. Black rust of wheat is caused by:

 
 
 
 

32. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

34. Ovary is absent in :

 
 
 
 

35. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

37. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Woody climbers are known as :

 
 
 
 

41. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

43. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

45. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

47. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. The ferns are usually found:

 
 
 
 

53. Typhoid in man is caused by:

 
 
 
 

54. The lambda phase is a:

 
 
 
 

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

 
 
 
 

56. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Centric discoid form of diatom is:

 
 
 
 

65. Black rust of wheat is caused by:

 
 
 
 

66. Fruits are not found in Cycas because:

 
 
 
 

67. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. Pinus gerardiana is :

 
 
 
 

71. Etiology includes the study of :

 
 
 
 

72. Enzymes are absent in:

 
 
 
 

73. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Which is not found in bacteria?

 
 
 
 

79. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

81. The antibiotic is obtained from:

 
 
 
 

82. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. The ascus of yeast contains:

 
 
 
 

86. The archegonia of Selaginella are differentiated by:

 
 
 
 

87. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

89. Lichens are pioneers of vegetation in a :

 
 
 
 

90. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

92. All algae have:

 
 
 
 

93. The stele of Dryopteris is a:

 
 
 
 

94. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

96. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

98. Spermatophyta are characterized by producing:

 
 
 
 

99. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

102. Vascular tissue is found in :

 
 
 
 

103. Bacteria are placed under:

 
 
 
 

104. Late blight of potato is caused by:

 
 
 
 

105. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

109. Who discovered cyanophages?

 
 
 
 

110. Kuru, a human disease is caused by:

 
 
 
 

111. Gram stain is used to:

 
 
 
 

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

 
 
 
 

113. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. The gametophyte of fern is as:

 
 
 
 

117. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. The sexual reproductive organs in Rhizopus are:

 
 
 
 

123. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

125. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

132. The development of sporangium in Selaginella is:

 
 
 
 

133. Cap cells are found in the filament of:

 
 
 
 

134. Who discovered streptomycin?

 
 
 
 

135. To which country Antony van Leeuwenhoek belong?

 
 
 
 

136. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

144. Bacteria differ from viruses in being sensitive to:

 
 
 
 

145. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

147. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

151. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

153. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

156. Most of the lichens are composed of :

 
 
 
 

157. Yeast is a source of:

 
 
 
 

158. Select the wrong statement:

 
 
 
 

159. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. Viruses have:

 
 
 
 

163. Fruiting body of lichens is :

 
 
 
 

164. Which of the following is a parasitic algae?

 
 
 
 

165. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

167. Acellular slime mold is/are:

 
 
 
 

168. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

170. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. Which class of Protozoa includes all parasitic forms?

 
 
 
 

174. Mixed cropping helps :

 
 
 
 

175. Coenogamete is found in:

 
 
 
 

176. Which group of algae have an incipient nucleus?

 
 
 
 

177. The vascular bundles of Cycas stem are :

 
 
 
 

178. Ovary is absent in:

 
 
 
 

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

 
 
 
 

180. Generic name of mango is:

 
 
 
 

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

 
 
 
 

182. In Funaria, calyptra is derived from :

 
 
 
 

183. Cleavage polyembryony is found in :

 
 
 
 

184. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

186. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Ergot of rye is caused by:

 
 
 
 

190. Germination of the seed of Pinus is :

 
 
 
 

191. Which is an edible fungus?

 
 
 
 

192. The seedless plants which possess vascular tissues are:

 
 
 
 

193. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

197. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

199. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

200. Usually, bacteria reproduce by:

 
 
 
 

201. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

203. The megasporangium of Selaginella is:

 
 
 
 

204. Which of the following shows heterotrichous habit?

 
 
 
 

205. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

207. Each chloroplast in Spirogyra bears :

 
 
 
 

208. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

210. Black rust of wheat is caused by:

 
 
 
 

211. Triple antigen injection or vaccine are for:

 
 
 
 

212. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

214. A plasmid found in some bacteria can integrate reversibly with the chromosome of its host and then it behaves as part of the host chromosome, multiplying with it What is this plasmid known as?

 
 
 
 

215. How a fern differs from a moss?

 
 
 
 

216. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

217. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

224. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

227. Proembryo in Pinus is :

 
 
 
 

228. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

231. Cycas is similar to a mustard plant :

 
 
 
 

232. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

234. The similarity between cyanobacteria and bacteria:

 
 
 
 

235. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

237. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

242. Green plants are classified as:

 
 
 
 

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

 
 
 
 

244. Embryophyta includes:

 
 
 
 

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

 
 
 
 

246. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

248. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

250. Saccharomyces ludwigii ascus produces:

 
 
 
 

251. Which is the correct statement about Selaginella?

 
 
 
 

252. Most resistant spore in bacteria is:

 
 
 
 

253. The leafy fern plant represents the:

 
 
 
 

254. Heterocysts are found in :

 
 
 
 

255. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

256. Cell walls of Gram-positive bacteria contain:

 
 
 
 

257. The first to isolate a plant virus was:

 
 
 
 

258. Why is Cycas called a living fossil?

 
 
 
 

259. Fruits are not found in :

 
 
 
 

260. Botulism is a:

 
 
 
 

261. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

263. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

270. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

274. 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:

 
 
 
 

275. Acetobacter is useful in:

 
 
 
 

276. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

278. In tracheophyta:

 
 
 
 

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

 
 
 
 

280. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. The two conjugating gametangia of Rhizopus are:

 
 
 
 

284. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

285. The zygospore in Rhizopus on germination forms:

 
 
 
 

286. 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:

 
 
 
 

287. The teeth of peristome of Funaria are :

 
 
 
 

288. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

290. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

293. Multicellular and jacketed sex organs are found in :

 
 
 
 

294. Some bacteria cannot be killed easily because of:

 
 
 
 

295. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

297. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

299. Fern plants are:

 
 
 
 

300. Fern prothallus is:

 
 
 
 

301. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

304. 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:

 
 
 
 

305. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

310. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

311. The spur of Pinus roxburghii has :

 
 
 
 

312. Anoxygenic photosynthesis occurs in:

 
 
 
 

313. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

315. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

317. Meiosis in Ulothrix takes place:

 
 
 
 

318. Heterosporous pteridophytes always form:

 
 
 
 

319. Bryophyta have a special character from other plants:

 
 
 
 

320. Azolla growing in paddy fields helps in:

 
 
 
 

321. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

323. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

325. Fern prothallus produces:

 
 
 
 

326. Citrus canker is caused by :

 
 
 
 

327. The fern plant is:

 
 
 
 

328. Ethylene oxide is widely used to:

 
 
 
 

329. Which one of the following is a monocot?

 
 
 
 

330. The fungi used as food are:

 
 
 
 

331. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

333. The plants of Funaria grow :

 
 
 
 

334. What is mycorrhiza?

 
 
 
 

335. Amoeba is a member of the phylum:

 
 
 
 

336. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

338. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

339. Winged seeds are found in :

 
 
 
 

340. 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?

 
 
 
 

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

 
 
 
 

342. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

344. In a bacteriophage, DNA is present in:

 
 
 
 

345. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

347. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

353. Maximum diversity of life forms occurs in :

 
 
 
 

354. Sexual reproduction in Rhizopus is by:

 
 
 
 

355. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

358. Cycas plant in appearance resembles :

 
 
 
 

359. The disease symptom necrosis refers to :

 
 
 
 

360. Funaria are commonly found :

 
 
 
 

361. The mode of nutrition of bacteria is usually:

 
 
 
 

362. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

364. In moss, peristomial teeth are:

 
 
 
 

365. Cocci types of bacteria are:

 
 
 
 

366. Pinus is:

 
 
 
 

367. Which is an exception to cell theory?

 
 
 
 

368. Lichens show :

 
 
 
 

369. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

373. Banana bunchy top is caused by :

 
 
 
 

374. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

377. Roots are absent in :

 
 
 
 

378. Cyathia is characterized by:

 
 
 
 

379. In moss, sporogenous tissue arises from:

 
 
 
 

380. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

382. Mycoplasma was discovered by:

 
 
 
 

383. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

389. In Funaria :

 
 
 
 

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

 
 
 
 

391. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

395. Oswald Tippo’s classification was based on :

 
 
 
 

396. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

399. Funaria is :

 
 
 
 

400. Which of the following does not contain chlorophyll?

 
 
 
 

401. Bacteriophages have been used as:

 
 
 
 

402. Which bacteria convert nitrate into nitrogen?

 
 
 
 

403. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

405. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

407. The prothallus of fern represents the plant:

 
 
 
 

408. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

411. Downy mildew disease is caused by :

 
 
 
 

412. The chloroplast of Chlamydomonas are:

 
 
 
 

413. 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?

 
 
 
 

414. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

417. In dinoflagellates, the two flagella are:

 
 
 
 

418. Which is a fungicide?

 
 
 
 

419. The rhizoids of Funaria are :

 
 
 
 

420. First animal pathogenic virus was discovered by:

 
 
 
 

421. Common phycobiont in a lichen is :

 
 
 
 

422. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

424. Metulae are found in:

 
 
 
 

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

 
 
 
 

426. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

427. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

430. In moss, stomata are found:

 
 
 
 

431. The flagella of Chlamydomonas are:

 
 
 
 

432. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

435. Cycas is :

 
 
 
 

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

 
 
 
 

437. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

438. In angiosperms double fertilization represents:

 
 
 
 

439. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

440. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

442. Diploxylic vascular bundles are found in:

 
 
 
 

443. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

448. Late blight of potato is caused by :

 
 
 
 

449. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

451. The term stele was given by:

 
 
 
 

452. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

454. Protistan algae obtain their food as:

 
 
 
 

455. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

458. The role of meiosis is for:

 
 
 
 

459. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

461. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

463. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. Detailed study of bacteriophage was made by:

 
 
 
 

467. Majority of lichens are :

 
 
 
 

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

 
 
 
 

469. Mucilaginous canals in Cycas are found in :

 
 
 
 

470. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

473. Saccharomyces is well known for:

 
 
 
 

474. The most important property of yeast is:

 
 
 
 

475. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478. The genetic material of poxvirus is:

 
 
 
 

479. Most appropriate word for protozoans is:

 
 
 
 

480. Embryo formation is not known in :

 
 
 
 

481. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

483. Which is a gametophytic tissue?

 
 
 
 

484. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. Lichen show :

 
 
 
 

489. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

491. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

494. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

496. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

498. Spirogyra represents the :

 
 
 
 

499. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

502. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

504. Meristele of fern is:

 
 
 
 

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

 
 
 
 

506. The coralloid roots are :

 
 
 
 

507. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

510. The sporangiophores in Rhizopus are:

 
 
 
 

511. Enteric bacteria are those bacteria that live:

 
 
 
 

512. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

514. Which of the following statements is not correct?

 
 
 
 

515. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

517. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. Which is the nuclear material in bacteria?

 
 
 
 

522. Vegetative reproduction in Cycas is by means of :

 
 
 
 

523. Funaria is :

 
 
 
 

524. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

526. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

529. Virion refers to:

 
 
 
 

530. Lichens reproduce by :

 
 
 
 

531. Streptomycin is obtained from:

 
 
 
 

532. Which statement is wrong in regard to bacteria?

 
 
 
 

533. Infective part of virus was discovered by:

 
 
 
 

534. Fertility of the soil is increased by:

 
 
 
 

535. Broad spectrum antibiotic is, which:

 
 
 
 

536. The fungi that grow on wood are called:

 
 
 
 

537. Methanogens belong to:

 
 
 
 

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

 
 
 
 

539. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

545. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

547. Selaginella differs from Moss in having:

 
 
 
 

548. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

553. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

555. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

558. E coli is a:

 
 
 
 

559. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

561. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

563. Penicillin is obtained from:

 
 
 
 

564. Chemosynthetic bacteria are:

 
 
 
 

565. Mostly type of zygospore in Ulothrix is:

 
 
 
 

566. The upper region of moss capsule is :

 
 
 
 

567. The chief characteristic of class Ascomycetes is:

 
 
 
 

568. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

570. The young leaves of Cycas have :

 
 
 
 

571. The smallest unit of classification is:

 
 
 
 

572. Nannandria are:

 
 
 
 

573. The sporophyte of Riccia is :

 
 
 
 

574. Sleeping sickness disease in man is caused by:

 
 
 
 

575. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

580. Diphtheria is caused by:

 
 
 
 

581. Desired type of Cycas can be grown by:

 
 
 
 

582. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

584. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

586. Iodine is obtained from :

 
 
 
 

587. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

591. The orders generally have the uniform endings:

 
 
 
 

592. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

595. The sporophyte of Riccia is represented by :

 
 
 
 

596. Mycoplasma are:

 
 
 
 

597. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

598. Ovules are not found enclosed in ovary in :

 
 
 
 

599. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

600. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

601. Total parasites belong to:

 
 
 
 

602. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

609. The Rhizopus is:

 
 
 
 

610. Small epidermal swellings due to infection are called :

 
 
 
 

611. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

613. The root nodules of leguminous plants contain:

 
 
 
 

614. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

616. Photoautotrophic bacteria have:

 
 
 
 

617. In Cycas which structure is equivalent to stamen?

 
 
 
 

618. Rhizopus belongs to:

 
 
 
 

619.

620. What is a vector?

 
 
 
 

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

 
 
 
 

622. Milk is converted to curd by:

 
 
 
 

623. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

625. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

627. Mycoplasmas are not viruses in nature because:

 
 
 
 

628. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

630. What are plasmids?

 
 
 
 

631. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

633. Longest known virus is:

 
 
 
 

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

 
 
 
 

635. Pinus microsporophyll bears:

 
 
 
 

636. All protozoans possess:

 
 
 
 

637. Fruits are not found in:

 
 
 
 

638. Placenta in fern is:

 
 
 
 

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

 
 
 
 

640. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. In moss, conducting tissue is made up of

 
 
 
 

644. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

645. Disease resistant plant varieties can be produced by :

 
 
 
 

646. Number of capsomeres forming capsid of TMV is:

 
 
 
 

647. The disease apple scab is caused by:

 
 
 
 

648. Ovules are not found enclosed in ovary in :

 
 
 
 

649. Liverworts are included in :

 
 
 
 

650. In Gymnosperms endosperm is a:

 
 
 
 

651. Select the wrong statement:

 
 
 
 

652. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

656. Who discovered heterothallism in fungi?

 
 
 
 

657. Green plants are classified as :

 
 
 
 

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

 
 
 
 

659. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

662. Ergot is obtained from :

 
 
 
 

663. Red rot of sugarcane is caused by :

 
 
 
 

664. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

665. How is moss different from fern?

 
 
 
 

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

 
 
 
 

667. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

669. Streptomyces falls under:

 
 
 
 

670. Climbers are found in genus:

 
 
 
 

671. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

673. Quarantine regulations are concerned with:

 
 
 
 

674. Cryptogams include :

 
 
 
 

675. Aflatoxin is produced by:

 
 
 
 

676. Water-net is the name of:

 
 
 
 

677. The chloroplast in Ulothrix is :

 
 
 
 

678. Photosynthetic protists belong to:

 
 
 
 

679. Some biologists have used the term Mycetozoa for:

 
 
 
 

680. The tree fern is:

 
 
 
 

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

 
 
 
 

682. The sporangia of Selaginella are attached:

 
 
 
 

683. The leaves of Funaria are :

 
 
 
 

684. Male gametophyte of Selaginella is found:

 
 
 
 

685. Sporophyte of Funaria is :

 
 
 
 

686. The antherozoids of Funaria are :

 
 
 
 

687. Pollination drop is:

 
 
 
 

688. 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:

 
 
 
 

689. Pollination in Cycas takes place by :

 
 
 
 

690. Special feature of pollen grains of Pinus is :

 
 
 
 

691. Bacteria are considered to be plants because they:

 
 
 
 

692. Which one of the following statement is wrong?

 
 
 
 

693. The Rhizopus gametes are formed in:

 
 
 
 

694. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

696. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

701. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

708. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

710. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

712. Ectocarpus produces:

 
 
 
 

713.

714. 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:

 
 
 
 

715. Psilotum is:

 
 
 
 

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

 
 
 
 

717. Cycas revoluta is widely grown as :

 
 
 
 

718. Economic importance of bacteria lies in their being:

 
 
 
 

719. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

723. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

725. Soil fertility is lost by the activities of:

 
 
 
 

726. Facultative saprophyte is:

 
 
 
 

727. The source of litmus is :

 
 
 
 

728. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

731. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

733. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

735. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

739. Among the algae kelps are :

 
 
 
 

740. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

743. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

748. In Pteris, the roots are:

 
 
 
 

749. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

751. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

753. Most primitive kind of flower is represented by:

 
 
 
 

754. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

759. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

761. The phloem of vascular system of Cycas is :

 
 
 
 

762. Isomorphic type alternation of generation is found in:

 
 
 
 

763. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

765. The prothallus of fern is:

 
 
 
 

766. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

768. Which of the following statement is correct?

 
 
 
 

769. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

771. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

774. Endemic plants are characterised by their:

 
 
 
 

775. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

778. Leaf spot of groundnut is caused by :

 
 
 
 

779. Absorptive nutrition is:

 
 
 
 

780. What is the role of nitrifying bacteria?

 
 
 
 

781. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

783. LSD is:

 
 
 
 

784. Most of the algae are :

 
 
 
 

785. Most primitive group of vascular plants are:

 
 
 
 

786. An Hfr bacterium is one that contains:

 
 
 
 

787. Ulothrix produces :

 
 
 
 

788. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

790. In Cycas:

 
 
 
 

791. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

795. Seeds are characteristically found in :

 
 
 
 

796. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

798. Interferon is a:

 
 
 
 

799. Halophiles are the bacteria that require for growth:

 
 
 
 

800. Clostridium can:

 
 
 
 

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

 
 
 
 

802. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

805. Cycas is different from mango in :

 
 
 
 

806. Smallpox is caused by:

 
 
 
 

807. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

809. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

811. Club moss and Peat moss belong to:

 
 
 
 

812. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

817. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

820. Mycoplasma contains:

 
 
 
 

821. . Tapetum develops in:

 
 
 
 

822. Seeds are characteristically found in:

 
 
 
 

823. Lichens form the first community in

 
 
 
 

824. Some diseases caused by bacteria are:

 
 
 
 

825. Who named prion?

 
 
 
 

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

 
 
 
 

827. Pteridophytes are also known as :

 
 
 
 

828. Sporophyte of fern is:

 
 
 
 

829. To which class Riccia belongs :

 
 
 
 

830. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

832. Cycas is:

 
 
 
 

833. One of the distinctive feature of Spirogyra is :

 
 
 
 

834. Nitrogen-fixing bacteria may be located:

 
 
 
 

835. Agar-agar is obtained from:

 
 
 
 

836. The fungi are usually:

 
 
 
 

837. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

839. Most primitive embryophytes are placed in:

 
 
 
 

840. Early blight of potato is caused by:

 
 
 
 

841. Pasteur is famous for his:

 
 
 
 

842. Funaria is a Bryophyta because :

 
 
 
 

843. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

845. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

849. Who among the following discovered virus?

 
 
 
 

850. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

852. Indusium in Dryopteris is:

 
 
 
 

853. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

856. Pollination in Pinus is :

 
 
 
 

857. Lichens are the indicator of pollution :

 
 
 
 

858. Embryophyta includes :

 
 
 
 

859. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

862. 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?

 
 
 
 

863. Protists which are diploid reproduce sexually by:

 
 
 
 

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