Quiz_Random

1. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. The young leaves of Cycas have :

 
 
 
 

6. The term stele was given by:

 
 
 
 

7. Fruiting body of lichens is :

 
 
 
 

8. Chief constituents of bordeaux mixture are :

 
 
 
 

9. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

11. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Climbers are found in genus:

 
 
 
 

15. Most primitive kind of flower is represented by:

 
 
 
 

16. In Gymnosperms endosperm is a:

 
 
 
 

17. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. In moss, stomata are found:

 
 
 
 

25. Acellular slime mold is/are:

 
 
 
 

26. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

37. Lichens reproduce by :

 
 
 
 

38. Most resistant spore in bacteria is:

 
 
 
 

39. LSD is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Which is absent from the xylem of Cycas?

 
 
 
 

43. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

49. In Gymnocarpeae the fruiting body is :

 
 
 
 

50. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

52. Economic importance of bacteria lies in their being:

 
 
 
 

53. Spermatophyta are characterized by producing:

 
 
 
 

54. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

60. The fungi that grow on wood are called:

 
 
 
 

61. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Aflatoxin is produced as a product in :

 
 
 
 

65. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

68. Funaria is :

 
 
 
 

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

 
 
 
 

70. Bacteria are considered to be plants because they:

 
 
 
 

71. Placenta in fern is:

 
 
 
 

72. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. In tracheophyta:

 
 
 
 

76. Sporophyte of fern is:

 
 
 
 

77. The Rhizopus is:

 
 
 
 

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

 
 
 
 

79. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

80. In Cycas the fertilization is:

 
 
 
 

81. Iodine is obtained from:

 
 
 
 

82. Ovary is absent in :

 
 
 
 

83. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

85. Tautonyms are illegitimate in:

 
 
 
 

86. Gametophyte is the main plant body in :

 
 
 
 

87. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Viruses are commonly transmitted in plants through:

 
 
 
 

91. Viruses have:

 
 
 
 

92. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Which among the following is a shrub?

 
 
 
 

96. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

98. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

100. Cycas is :

 
 
 
 

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

 
 
 
 

102. Cap cells are found in the filament of:

 
 
 
 

103. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

104. Photosynthetic protists belong to:

 
 
 
 

105. Pollination drop is:

 
 
 
 

106. Cleavage polyembryony is found in :

 
 
 
 

107. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

109. The ferns are usually found:

 
 
 
 

110. In Cycas:

 
 
 
 

111. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

114. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

117. Most of the algae are :

 
 
 
 

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

 
 
 
 

119. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. 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:

 
 
 
 

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

 
 
 
 

124. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

126. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

128. Usually, bacteria reproduce by:

 
 
 
 

129. Bryophyta have a special character from other plants:

 
 
 
 

130. What are plasmids?

 
 
 
 

131. Choose the correct statement about Spirogyra:

 
 
 
 

132. 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:

 
 
 
 

133. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

135. Mycoplasma is different from bacteria due to:

 
 
 
 

136. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

139. The development of Selaginella embryo is:

 
 
 
 

140. Antibiotic has been extracted from :

 
 
 
 

141. In Cycas microsporangia are borne on:

 
 
 
 

142. Cycas is:

 
 
 
 

143. Fruits are not found in:

 
 
 
 

144. Which group of algae have an incipient nucleus?

 
 
 
 

145. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

148. The photosynthetic protists are:

 
 
 
 

149. Azolla growing in paddy fields helps in:

 
 
 
 

150. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

153. The prothallus of fern is:

 
 
 
 

154. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

155. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

157. Downy mildew disease is caused by :

 
 
 
 

158. Vascular cryptogam is the term used for :

 
 
 
 

159. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

160. Woody climbers are known as :

 
 
 
 

161. Gram stain is used to:

 
 
 
 

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

 
 
 
 

163. Fruits are not found in Cycas because:

 
 
 
 

164. Antibiotics cure the disease by:

 
 
 
 

165. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

169. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

175. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

178. Little leaf disease of Brinjal is caused by:

 
 
 
 

179.

 

180. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

182. The most primitive vascular plants is:

 
 
 
 

183. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Ovary is absent in:

 
 
 
 

190. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

192. Most of the lichens are composed of :

 
 
 
 

193. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

195. The fungi are usually:

 
 
 
 

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

 
 
 
 

197. Embryophyta includes:

 
 
 
 

198. Some biologists have used the term Mycetozoa for:

 
 
 
 

199. Protistan algae obtain their food as:

 
 
 
 

200. Bryophyta have been placed in cryptogams because:

 
 
 
 

201. Spores of which plants have chloroplast:

 
 
 
 

202. Spirogyra represents the :

 
 
 
 

203. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

205. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

208. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

211. Pneumonia is caused by:

 
 
 
 

212. The disease apple scab is caused by:

 
 
 
 

213. Which is the correct statement about Selaginella?

 
 
 
 

214. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

217. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

221. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

224. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

226. Black rust of wheat is caused by:

 
 
 
 

227. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

229. Mycoplasmas are not viruses in nature because:

 
 
 
 

230. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

239. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

241. Psilotum is:

 
 
 
 

242. Which of the following are absent in Mycoplasma?

 
 
 
 

243. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

245. What is a vector?

 
 
 
 

246. Nitrogen-fixing bacteria may be located:

 
 
 
 

247. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

249. Mixed cropping helps :

 
 
 
 

250. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

252. Standard size of a herbarium sheet is:

 
 
 
 

253. Zoogametes are not found in:

 
 
 
 

254. The orders generally have the uniform endings:

 
 
 
 

255. Cell walls of Gram-positive bacteria contain:

 
 
 
 

256. Mycoplasma are:

 
 
 
 

257. Which of the following is sago palm?

 
 
 
 

258. Bacteria growing on synthetic medium are called:

 
 
 
 

259. Who among the following discovered virus?

 
 
 
 

260. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. The rhizoids of Funaria are :

 
 
 
 

264. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. Ovules are not found enclosed in ovary in :

 
 
 
 

268. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

270. 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:

 
 
 
 

271. Which is a tautonym?

 
 
 
 

272. Germ theory of disease was proposed by:

 
 
 
 

273. The truncated cone of HIV consists of:

 
 
 
 

274. Cyanophage is a virus that attacks:

 
 
 
 

275. Roots are absent in :

 
 
 
 

276. Reproduction in Rhizopus is:

 
 
 
 

277. Facultative saprophyte is:

 
 
 
 

278. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

280. The two conjugating gametangia of Rhizopus are:

 
 
 
 

281. The largest alga is:

 
 
 
 

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

 
 
 
 

283. First animal pathogenic virus was discovered by:

 
 
 
 

284. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

286. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

289. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

291. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

293. Pseudomycelium is found in:

 
 
 
 

294. The tallest moss in the world is :

 
 
 
 

295. Rhizoids of Riccia are :

 
 
 
 

296. Quarantine regulations are concerned with:

 
 
 
 

297. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

299. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

300. Liverworts are included in :

 
 
 
 

301. E coli is a:

 
 
 
 

302. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

304. Acetobacter is useful in:

 
 
 
 

305. The antibiotic is obtained from:

 
 
 
 

306. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

308. In moss, calyptra is formed from:

 
 
 
 

309. Selaginella differs from Moss in having:

 
 
 
 

310. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

313. Most primitive embryophytes are placed in:

 
 
 
 

314. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. The microsporophylls on the cone of Cycas are :

 
 
 
 

320. Which of the following is a heterosporous pteridophyte?

 
 
 
 

321. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

324. Vegetative reproduction in Cycas is by means of :

 
 
 
 

325. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

331. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

334. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

335. The mycelium of Rhizopus is:

 
 
 
 

336. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

340. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

342. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

344. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

346. The roots of Cycas are :

 
 
 
 

347. The zygospore in Rhizopus on germination forms:

 
 
 
 

348. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

349. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Metulae are found in:

 
 
 
 

353. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

356. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

359. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

361. Which of the following lichens is harmful?

 
 
 
 

362. In moss, sporophyte is formed on:

 
 
 
 

363. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

365. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

368. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

370. Etiology includes the study of :

 
 
 
 

371. Ethylene oxide is widely used to:

 
 
 
 

372.

373. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

375. . Tapetum develops in:

 
 
 
 

376. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

378. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

382. Cycas revoluta is widely grown as :

 
 
 
 

383. In Herpes virus DNA is:

 
 
 
 

384. Funaria is :

 
 
 
 

385. The DNA of E coli is:

 
 
 
 

386. Which one of the following is a monocot?

 
 
 
 

387. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

389. Early blight of potato is caused by:

 
 
 
 

390. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

392. Who discovered cyanophages?

 
 
 
 

393. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

395. Protozoans are considered animals because these are:

 
 
 
 

396. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

401. 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?

 
 
 
 

402. The sexual reproductive organs in Rhizopus are:

 
 
 
 

403. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

411. Which of the following have a prokaryotic cell?

 
 
 
 

412. Embryophyta includes :

 
 
 
 

413. Which of the following have algal zone?

 
 
 
 

414. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

418. Lichens reproduce by :

 
 
 
 

419. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

422. Endemic plants are characterised by their:

 
 
 
 

423. Botulinum toxin effects:

 
 
 
 

424. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

426. Late blight of potato is caused by:

 
 
 
 

427. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

429. Longest known virus is:

 
 
 
 

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

 
 
 
 

431. Cryptogams include :

 
 
 
 

432. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

434. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. Citrus canker is caused by:

 
 
 
 

438. The genetic material of poxvirus is:

 
 
 
 

439. Penicillin is obtained from:

 
 
 
 

440. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

443. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

445. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. Milk is converted to curd by:

 
 
 
 

450. The archegonia in Selaginella develop on:

 
 
 
 

451. Amoeba is a member of the phylum:

 
 
 
 

452. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

454. Water-net is the name of:

 
 
 
 

455. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

459. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. Who discovered streptomycin?

 
 
 
 

463. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

467. An alga which is rich in proteins:

 
 
 
 

468. Red rot of sugarcane is caused by :

 
 
 
 

469. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

473. The order generally ends with:

 
 
 
 

474. Wine turns sour because of:

 
 
 
 

475. Pteridophytes are also known as :

 
 
 
 

476. Among the algae kelps are :

 
 
 
 

477. Which bacteria convert nitrate into nitrogen?

 
 
 
 

478. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

481. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

483. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

485. Heterotrichous habit means :

 
 
 
 

486. Spermatophyta are characterized by producing:

 
 
 
 

487. Which organisms are the oldest life forms?

 
 
 
 

488. The sori in Dryopteris are found on:

 
 
 
 

489. 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?

 
 
 
 

490. The mode of nutrition of bacteria is usually:

 
 
 
 

491. In a diplontic life cycle:

 
 
 
 

492. The vascular bundles of Cycas stem are :

 
 
 
 

493. Viruses are considered to be:

 
 
 
 

494. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

497. Rhizophore of Selaginella is:

 
 
 
 

498. Nannandria are:

 
 
 
 

499. Yeast is a source of:

 
 
 
 

500. Which of the following is a parasitic algae?

 
 
 
 

501. In moss, conducting tissue is made up of

 
 
 
 

502. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

504. Winged pollen grains are found in :

 
 
 
 

505. Ergot of rye is caused by:

 
 
 
 

506. Iodine is obtained from :

 
 
 
 

507. The coralloid roots are :

 
 
 
 

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

 
 
 
 

509. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

513. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

515. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

524. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

526. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

528. Water-borne bacterial diseases are:

 
 
 
 

529. The chief characteristic of bryophyta is that :

 
 
 
 

530. Azolla and Salvinia both are:

 
 
 
 

531. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

533. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

535. Saccharomyces is well known for:

 
 
 
 

536. In Funaria :

 
 
 
 

537. Red rot of sugarcane is caused by :

 
 
 
 

538. Seeds are characteristically found in:

 
 
 
 

539. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. Bentham and Hooker placed gymnosperms:

 
 
 
 

543. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

545. Virion refers to:

 
 
 
 

546. Which is a fungicide?

 
 
 
 

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

 
 
 
 

548. Vascular cryptogams is the term used for:

 
 
 
 

549. Parmelia belongs to :

 
 
 
 

550. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

552. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

554. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

557. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

559. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

561. One of the distinctive feature of Spirogyra is :

 
 
 
 

562. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

565. 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?

 
 
 
 

566. How is moss different from fern?

 
 
 
 

567. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

569. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

571. Ovules are not found enclosed in ovary of:

 
 
 
 

572. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

575. The leaves of Funaria are :

 
 
 
 

576. Siphonogamy is found in:

 
 
 
 

577. The source of litmus is :

 
 
 
 

578. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

580. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

582. Infective part of virus was discovered by:

 
 
 
 

583. The chloroplast in Ulothrix is :

 
 
 
 

584. The ascus of yeast contains:

 
 
 
 

585. Lichens form the first community in

 
 
 
 

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

 
 
 
 

587. Ulothrix produces :

 
 
 
 

588. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

590. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

593. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

598. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

600. Black rust of wheat is caused by:

 
 
 
 

601. Methanogens belong to:

 
 
 
 

602. The role of meiosis is for:

 
 
 
 

603. Green plants are classified as :

 
 
 
 

604. Discovery of penicillin was based on:

 
 
 
 

605. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

611. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

614. Mucilaginous canals in Cycas are found in :

 
 
 
 

615. In moss, reduction division occurs in :

 
 
 
 

616. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

618. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

619. Some bacteria cannot be killed easily because of:

 
 
 
 

620. In dinoflagellates, the two flagella are:

 
 
 
 

621. Redness of red sea is due to :

 
 
 
 

622. Pasteurized milk is:

 
 
 
 

623. Botulism is a:

 
 
 
 

624. Pollination in Cycas takes place by :

 
 
 
 

625. The alga, Spirogyra are found in :

 
 
 
 

626. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

627. Enzymes are absent in:

 
 
 
 

628. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

632. Plasmids are:

 
 
 
 

633. Ergot is obtained from :

 
 
 
 

634. Heterospory is the production of:

 
 
 
 

635. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

638. Photoautotrophic bacteria have:

 
 
 
 

639. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

641. Which fixes atmospheric nitrogen?

 
 
 
 

642. Fern prothallus is:

 
 
 
 

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

 
 
 
 

644. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

646. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

647. Generic name of mango is:

 
 
 
 

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

 
 
 
 

649. Nitrifying bacteria play an important role by converting:

 
 
 
 

650. The middle sterile part of capsule is called:

 
 
 
 

651. Vascular tissue is found in :

 
 
 
 

652. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

656. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

658. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

660. Most common type of conjugation in Spirogyra is :

 
 
 
 

661. Clostridium can:

 
 
 
 

662. The lambda phase is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

666. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

669. How a fern differs from a moss?

 
 
 
 

670. Lichen show :

 
 
 
 

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

 
 
 
 

672. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

676. Sporophyte of Funaria is :

 
 
 
 

677. Diphtheria is caused by:

 
 
 
 

678. Photosynthetic bacteria have:

 
 
 
 

679. Which have the largest antherozoid?

 
 
 
 

680. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

683. Penicillin was discovered by:

 
 
 
 

684. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

686. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

689. Some diseases caused by bacteria are:

 
 
 
 

690. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

692. Ginkgo biloba is a:

 
 
 
 

693. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

695. Male gametes in Dryopteris are:

 
 
 
 

696. The root nodules of leguminous plants contain:

 
 
 
 

697. 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:

 
 
 
 

698. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

701. Rhizopus belongs to:

 
 
 
 

702. Late blight of potato is caused by :

 
 
 
 

703.

704. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

706. Which of the following is true for viruses?

 
 
 
 

707. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

708. Broad spectrum antibiotic is, which:

 
 
 
 

709. Select the wrong statement:

 
 
 
 

710. In binomial system most of the words are:

 
 
 
 

711. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

715. Fern prothallus produces:

 
 
 
 

716. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. White rust of crucifers is caused by:

 
 
 
 

720. Embryo formation is not known in :

 
 
 
 

721. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. The plants of Funaria grow :

 
 
 
 

727. Sleeping sickness disease in man is caused by:

 
 
 
 

728. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

730. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

732. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

735. The sporangia of Selaginella are attached:

 
 
 
 

736. All protozoans possess:

 
 
 
 

737. The leafy fern plant represents the:

 
 
 
 

738. Which one of the following statement is wrong?

 
 
 
 

739. Kuru, a human disease is caused by:

 
 
 
 

740. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

742. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

744. Special feature of pollen grains of Pinus is :

 
 
 
 

745. The sporophyte of Riccia is represented by :

 
 
 
 

746. Club moss is the common name of :

 
 
 
 

747. The group algae possesses representatives belonging to kingdom:

 
 
 
 

748. Who named prion?

 
 
 
 

749. The antherozoids of Funaria are :

 
 
 
 

750. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Germination of the seed of Pinus is :

 
 
 
 

755. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

758. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

760. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

761. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

763. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

766. Which is an exception to cell theory?

 
 
 
 

767. The similarity between cyanobacteria and bacteria:

 
 
 
 

768. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

770. 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:

 
 
 
 

771. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

772. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

774. The disease symptom necrosis refers to :

 
 
 
 

775. The gametophyte of moss has distinct phases :

 
 
 
 

776. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

778. The fungi used as food are:

 
 
 
 

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

 
 
 
 

780. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

783. Transfusion tissue is present in the leaflet of:

 
 
 
 

784. Indusium in Dryopteris is:

 
 
 
 

785. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

788. The Rhizopus gametes are formed in:

 
 
 
 

789. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

791. In Cycas which structure is equivalent to stamen?

 
 
 
 

792. Meristele of fern is:

 
 
 
 

793. What is streptomycin?

 
 
 
 

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

 
 
 
 

795. The chief characteristic of class Ascomycetes is:

 
 
 
 

796. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

799. Most primitive embryophytes are placed in :

 
 
 
 

800. Spirogyra differs from moss protonema in having :

 
 
 
 

801. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. The prothallus of fern represents the plant:

 
 
 
 

805. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. Streptomyces falls under:

 
 
 
 

809. Saccharomyces ludwigii ascus produces:

 
 
 
 

810. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

812. The spur of Pinus roxburghii has :

 
 
 
 

813. Which causes red tide?

 
 
 
 

814. Interferon is a:

 
 
 
 

815. In Pteris, the archegonia are present:

 
 
 
 

816. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

820. Red rot of sugarcane is caused by:

 
 
 
 

821. Diploxylic vascular bundles are found in:

 
 
 
 

822. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

824. Black rust of wheat is caused by:

 
 
 
 

825. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

827. Where does meiosis occur in yeast?

 
 
 
 

828. Mostly type of zygospore in Ulothrix is:

 
 
 
 

829. An Hfr bacterium is one that contains:

 
 
 
 

830. Sometimes the bacterial cell is enclosed in:

 
 
 
 

831. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

832. The tree fern is:

 
 
 
 

833. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

835. Lichens show :

 
 
 
 

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

 
 
 
 

837.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

841. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

845. Bacteria are found everywhere, except:

 
 
 
 

846. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

848. Fern plants are:

 
 
 
 

849. The chloroplast of Chlamydomonas are:

 
 
 
 

850. Soil fertility is lost by the activities of:

 
 
 
 

851. Cycas plant in appearance resembles :

 
 
 
 

852. The fern plant is:

 
 
 
 

853. Synzoospore is produced in:

 
 
 
 

854. Pteridophyta are also called:

 
 
 
 

855. The gametophyte of fern is as:

 
 
 
 

856. Small epidermal swellings due to infection are called :

 
 
 
 

857. Which class of Protozoa includes all parasitic forms?

 
 
 
 

858. What is special feature of fern archegonia?

 
 
 
 

859. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

861. Lichens are indicators of :

 
 
 
 

862. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

864. The leaves of Funaria are :