Quiz_Random

1. Little leaf disease of Brinjal is caused by:

 
 
 
 

2. First animal pathogenic virus was discovered by:

 
 
 
 

3. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

5. Simple polyembryony is found in :

 
 
 
 

6. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

8. The fungi used as food are:

 
 
 
 

9. The coralloid roots are :

 
 
 
 

10. Which of the following shows heterotrichous habit?

 
 
 
 

11. Bryophyta have been placed in cryptogams because:

 
 
 
 

12.

13. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. Spores of which plants have chloroplast:

 
 
 
 

17. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

22. Heterotrichous habit means :

 
 
 
 

23. Mycoplasma was discovered by:

 
 
 
 

24. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

26. Select the wrong statement:

 
 
 
 

27. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

29. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

31. The most primitive vascular plants is:

 
 
 
 

32. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

34. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

36. Generic name of mango is:

 
 
 
 

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

 
 
 
 

38. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. The prothallus of fern represents the plant:

 
 
 
 

42. Spermatophyta are characterized by producing:

 
 
 
 

43. In Pteris, the roots are:

 
 
 
 

44. All protozoans possess:

 
 
 
 

45. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

46. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

48. Bacteria growing on synthetic medium are called:

 
 
 
 

49. Climbers are found in genus:

 
 
 
 

50. Reproduction in Rhizopus is:

 
 
 
 

51. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

55. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

57. Streptomyces falls under:

 
 
 
 

58. The middle sterile part of capsule is called:

 
 
 
 

59. Most primitive embryophytes are placed in :

 
 
 
 

60. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

62. Which is not found in bacteria?

 
 
 
 

63. Total parasites belong to:

 
 
 
 

64. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Fruits are not found in:

 
 
 
 

68. Economic importance of bacteria lies in their being:

 
 
 
 

69. To which country Antony van Leeuwenhoek belong?

 
 
 
 

70. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. In angiosperms double fertilization represents:

 
 
 
 

75. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

82. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

90. The lambda phase is a:

 
 
 
 

91. TMV was isolated in crystalline form by:

 
 
 
 

92. Which is a redwood tree?

 
 
 
 

93. Azolla and Salvinia both are:

 
 
 
 

94. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

95. Downy mildew disease is caused by :

 
 
 
 

96. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

98. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

103. Pseudomycelium is found in:

 
 
 
 

104. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

106. LSD is:

 
 
 
 

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

 
 
 
 

108. Multicellular and jacketed sex organs are found in :

 
 
 
 

109. Which organisms are the oldest life forms?

 
 
 
 

110. Who discovered heterothallism in fungi?

 
 
 
 

111. In moss, sporogenous tissue arises from:

 
 
 
 

112. Which one of the following statement is wrong?

 
 
 
 

113. Lichen show :

 
 
 
 

114. The vascular bundles of Cycas stem are :

 
 
 
 

115. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. Fruits are not found in :

 
 
 
 

120. The group algae possesses representatives belonging to kingdom:

 
 
 
 

121. The gametophyte produced by apospory is :

 
 
 
 

122. The development of sporangium in Selaginella is:

 
 
 
 

123. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

125. Seeds are characteristically found in:

 
 
 
 

126. Lichens show :

 
 
 
 

127. The disease symptom necrosis refers to :

 
 
 
 

128. Black rust of wheat is caused by:

 
 
 
 

129. Protozoans are considered animals because these are:

 
 
 
 

130. Cycas is similar to a mustard plant :

 
 
 
 

131. Milk is converted to curd by:

 
 
 
 

132. Methanogens belong to:

 
 
 
 

133. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

135. Iodine is obtained from :

 
 
 
 

136. Germination of the seed of Pinus is :

 
 
 
 

137. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

139. In Cycas:

 
 
 
 

140. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

144. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

147. Special feature of pollen grains of Pinus is :

 
 
 
 

148. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

150. Which causes red tide?

 
 
 
 

151. Liverworts are included in :

 
 
 
 

152. Fern phloem lacks:

 
 
 
 

153. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

155. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

157. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

164. Virion refers to:

 
 
 
 

165. Pteridophyta are also called:

 
 
 
 

166. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

168. Bacteria are placed under:

 
 
 
 

169. Interferon is a:

 
 
 
 

170. Most primitive embryophytes are placed in:

 
 
 
 

171. Pollination drop is:

 
 
 
 

172. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

174. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

181. In tracheophyta:

 
 
 
 

182. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

184. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

187. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

190. . Tapetum develops in:

 
 
 
 

191. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

194. Cycas is :

 
 
 
 

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

 
 
 
 

196. Wine turns sour because of:

 
 
 
 

197. The antibiotic is obtained from:

 
 
 
 

198. The fern plant is:

 
 
 
 

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

 
 
 
 

200. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. Which is not true for Escherichia coli?

 
 
 
 

204. Rhizopus belongs to:

 
 
 
 

205. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

208. Saccharomyces is well known for:

 
 
 
 

209. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

211. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

213. Smallpox is caused by:

 
 
 
 

214. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

217. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

219. Some diseases caused by bacteria are:

 
 
 
 

220. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Pythium debaryanum is the causative agent of:

 
 
 
 

224. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

230. Ergot is obtained from :

 
 
 
 

231. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

233. Most appropriate word for protozoans is:

 
 
 
 

234. Yeast is a source of:

 
 
 
 

235. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

239. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

241. Lichens form the first community in

 
 
 
 

242. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

247. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

251. Which of the following is true for viruses?

 
 
 
 

252. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. Photosynthetic protists belong to:

 
 
 
 

256. Who among the following discovered virus?

 
 
 
 

257. Placenta in fern is:

 
 
 
 

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

 
 
 
 

259. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

262. In moss, stomata are found:

 
 
 
 

263. The teeth of peristome of Funaria are :

 
 
 
 

264. Gram stain is used to:

 
 
 
 

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

 
 
 
 

266. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

268. Ovules are not found enclosed in ovary in :

 
 
 
 

269. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

271. Bacteriophage consists of:

 
 
 
 

272.

273. The lichens growing on rocks are called :

 
 
 
 

274. Most primitive group of vascular plants are:

 
 
 
 

275. Discovery of penicillin was based on:

 
 
 
 

276. Late blight of potato is caused by:

 
 
 
 

277. Yeast belongs to class:

 
 
 
 

278. Some bacteria cannot be killed easily because of:

 
 
 
 

279. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. Quarantine regulations are concerned with:

 
 
 
 

284. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

286. The tree fern is:

 
 
 
 

287. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

289. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

292. What is a vector?

 
 
 
 

293. 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:

 
 
 
 

294. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

296. 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?

 
 
 
 

297. The disease apple scab is caused by:

 
 
 
 

298. The Rhizopus is:

 
 
 
 

299. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

301. Most of the algae are :

 
 
 
 

302. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

304. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

306. The prothallus of fern is:

 
 
 
 

307. What is absent in Deuteromycetes?

 
 
 
 

308. Usually, bacteria reproduce by:

 
 
 
 

309. Protistan algae obtain their food as:

 
 
 
 

310. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

312. Botulism is a:

 
 
 
 

313. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

318. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

322. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. Bacteria which are spherical are called:

 
 
 
 

327. The seedless plants which possess vascular tissues are:

 
 
 
 

328. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

331. Anoxygenic photosynthesis occurs in:

 
 
 
 

332. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

334. The root nodules of leguminous plants contain:

 
 
 
 

335. The similarity between cyanobacteria and bacteria:

 
 
 
 

336. Oswald Tippo’s classification is:

 
 
 
 

337. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

339. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

342. In moss, peristomial teeth are:

 
 
 
 

343. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

346. The role of meiosis is for:

 
 
 
 

347. The gametophyte of fern is as:

 
 
 
 

348. Fertility of the soil is increased by:

 
 
 
 

349. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

351. Which of the following does not contain chlorophyll?

 
 
 
 

352. Funaria are commonly found :

 
 
 
 

353. What is mycorrhiza?

 
 
 
 

354. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

358. Cryptogams include :

 
 
 
 

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

 
 
 
 

360. In Funaria, calyptra is derived from :

 
 
 
 

361. The DNA of E coli is:

 
 
 
 

362. The stele of Dryopteris is a:

 
 
 
 

363. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

365. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

369. In a diplontic life cycle:

 
 
 
 

370. The source of litmus is :

 
 
 
 

371. Mycoplasma are:

 
 
 
 

372. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

374. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380. Broad spectrum antibiotic is, which:

 
 
 
 

381. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

384. Which fixes atmospheric nitrogen?

 
 
 
 

385. The mycelium of Rhizopus is:

 
 
 
 

386. Sporophyte of Funaria is :

 
 
 
 

387. Which have the largest antherozoid?

 
 
 
 

388. The first to isolate a plant virus was:

 
 
 
 

389. The chromosomal number in:

 
 
 
 

390. How is moss different from fern?

 
 
 
 

391. Synzoospore is produced in:

 
 
 
 

392. In dinoflagellates, the two flagella are:

 
 
 
 

393. Ulothrix produces :

 
 
 
 

394. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

396. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

399. In moss, reduction division occurs in :

 
 
 
 

400. Desired type of Cycas can be grown by:

 
 
 
 

401. Mycoplasmas are not viruses in nature because:

 
 
 
 

402. Metulae are found in:

 
 
 
 

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

 
 
 
 

404. Citrus canker is caused by :

 
 
 
 

405. Fern plants are:

 
 
 
 

406. Redness of red sea is due to :

 
 
 
 

407. Pinus gerardiana is :

 
 
 
 

408. Vascular tissue is found in :

 
 
 
 

409. Which is an exception to cell theory?

 
 
 
 

410. Bacteriophages have been used as:

 
 
 
 

411. Ginkgo biloba is a:

 
 
 
 

412. In binomial system most of the words are:

 
 
 
 

413. What are Cyanobacteria?

 
 
 
 

414. Chief constituents of bordeaux mixture are :

 
 
 
 

415. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

418. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

422. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

425. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

429. Isomorphic type alternation of generation is found in:

 
 
 
 

430. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

435. Nitrogen-fixing bacteria may be located:

 
 
 
 

436. Which is absent from the xylem of Cycas?

 
 
 
 

437. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

439. The truncated cone of HIV consists of:

 
 
 
 

440. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

442. Saccharomyces is used in:

 
 
 
 

443. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

447. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

449. Which condition is found in Cycas?

 
 
 
 

450. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

453. All archaebacteria lack:

 
 
 
 

454. What is streptomycin?

 
 
 
 

455. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

457. The central part of Funaria axis is :

 
 
 
 

458. Lichens are pioneers of vegetation in a :

 
 
 
 

459. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

460. Genetic material of TMV is:

 
 
 
 

461. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

463. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

465. The tallest moss in the world is :

 
 
 
 

466. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

468. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

470. Cycas revoluta is widely grown as :

 
 
 
 

471. The sori in Dryopteris are found on:

 
 
 
 

472. The fungi are mostly:

 
 
 
 

473. Germ theory of disease was proposed by:

 
 
 
 

474. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478. Water-borne bacterial diseases are:

 
 
 
 

479. Protists which are diploid reproduce sexually by:

 
 
 
 

480. Penicillin was discovered by:

 
 
 
 

481. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. Asexual reproductive body of Volvox is called:

 
 
 
 

486. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

488. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

490. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

493. Sleeping sickness disease in man is caused by:

 
 
 
 

494. Pteridophytes are also known as :

 
 
 
 

495. Lichens are ecologically important because :

 
 
 
 

496. Ovary is absent in:

 
 
 
 

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

 
 
 
 

498. Lichens are indicators of :

 
 
 
 

499. In moss, calyptra is formed from:

 
 
 
 

500. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

504. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

506. The fungi are usually:

 
 
 
 

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

 
 
 
 

508. Who discovered cyanophages?

 
 
 
 

509. Which one of the following is a monocot?

 
 
 
 

510. Which of the following is a heterosporous pteridophyte?

 
 
 
 

511. Enzymes are absent in:

 
 
 
 

512. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. Antibiotics cure the disease by:

 
 
 
 

516. Common phycobiont in a lichen is :

 
 
 
 

517. Winged seeds are found in :

 
 
 
 

518. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. Gymnosperms could also be called as:

 
 
 
 

522. The megaspore of Selaginella on germination produces:

 
 
 
 

523. Heterospory and ligulate leaves are a feature of:

 
 
 
 

524. Facultative parasite is:

 
 
 
 

525. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

530. Viruses have:

 
 
 
 

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

 
 
 
 

532. Most resistant spore in bacteria is:

 
 
 
 

533. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

535. Male gametophyte of Selaginella is found:

 
 
 
 

536. Majority of lichens are :

 
 
 
 

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

 
 
 
 

538. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

540. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

542. What is special feature of fern archegonia?

 
 
 
 

543. What are plasmids?

 
 
 
 

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

 
 
 
 

545. Which statement is wrong in regard to bacteria?

 
 
 
 

546. The smallest bacterium is:

 
 
 
 

547. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

550. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

552. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

553. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

555. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

557. Fern prothallus produces:

 
 
 
 

558. Viruses are considered to be:

 
 
 
 

559. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

564. Which of the following have a prokaryotic cell?

 
 
 
 

565. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

567. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

570. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

572. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

577. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

580. Siphonogamy is found in:

 
 
 
 

581. Pasteurization of milk involves heating for:

 
 
 
 

582. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

584. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

588. Late blight of potato is caused by :

 
 
 
 

589. Funaria is a Bryophyta because :

 
 
 
 

590. Among the algae kelps are :

 
 
 
 

591. In Funaria :

 
 
 
 

592. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

594. Water-net is the name of:

 
 
 
 

595. The largest known bacterium is:

 
 
 
 

596. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

598. Roots are absent in :

 
 
 
 

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

 
 
 
 

600. Mycoplasma are sensitive to:

 
 
 
 

601. Fruits are not found in Cycas because:

 
 
 
 

602. Pinus is:

 
 
 
 

603. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

606. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

609. 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:

 
 
 
 

610. Which of the following lichens is harmful?

 
 
 
 

611. Leaf spot of groundnut is caused by :

 
 
 
 

612. The photosynthetic protists are:

 
 
 
 

613. 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:

 
 
 
 

614. The order generally ends with:

 
 
 
 

615. An Hfr bacterium is one that contains:

 
 
 
 

616. Pollination in Pinus is :

 
 
 
 

617. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

619. The gametophyte of moss has distinct phases :

 
 
 
 

620. Meristele of fern is:

 
 
 
 

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

 
 
 
 

622. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

624. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

626. The gametophyte of fern bears:

 
 
 
 

627. The male gametes of Pinus are :

 
 
 
 

628. Reserve food in Euglena is:

 
 
 
 

629. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

631. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

633. An alga which is rich in proteins:

 
 
 
 

634. The genetic material of poxvirus is:

 
 
 
 

635. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

639. Yeast grows more rapidly in:

 
 
 
 

640.

 

641. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. The chief characteristic of bryophyta is that :

 
 
 
 

645. Absorptive nutrition is:

 
 
 
 

646. What is the role of nitrifying bacteria?

 
 
 
 

647. Green plants are classified as :

 
 
 
 

648. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

650. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

652. Which is a fungicide?

 
 
 
 

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

 
 
 
 

654. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

656.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. Agar-agar is obtained from:

 
 
 
 

661. Cap cells are found in the filament of:

 
 
 
 

662. The archegonia of Selaginella are differentiated by:

 
 
 
 

663. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

665. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

666. Pollination in Cycas takes place by :

 
 
 
 

667. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

671. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

672. Rhizoids of Riccia are :

 
 
 
 

673. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

675. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

677. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

678. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

680. Diploxylic vascular bundles are found in:

 
 
 
 

681. NBG of Lucknow is now named as:

 
 
 
 

682. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. The term stele was given by:

 
 
 
 

687. Black rust of wheat is caused by:

 
 
 
 

688. Gametophyte is the main plant body in :

 
 
 
 

689. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

691. Mycoplasma is different from bacteria due to:

 
 
 
 

692. The zoospores of Ulothrix are :

 
 
 
 

693. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

695. The sporangiophores in Rhizopus are:

 
 
 
 

696. Nannandria are:

 
 
 
 

697. Helotism word is used for the symbiosis between :

 
 
 
 

698. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

700. Oswald Tippo’s classification was based on :

 
 
 
 

701. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

703. Chemosynthetic bacteria are:

 
 
 
 

704. Funaria is :

 
 
 
 

705. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

709. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. Which is an edible fungus?

 
 
 
 

715. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

718. Aflatoxin is produced by:

 
 
 
 

719. Cyanophage is a virus that attacks:

 
 
 
 

720. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

722. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. Transfusion tissue is present in the leaflet of:

 
 
 
 

730. Spirogyra differs from moss protonema in having :

 
 
 
 

731. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

734. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

736. Water bloom is generally caused by :

 
 
 
 

737. Pasteurized milk is:

 
 
 
 

738. Pinus microsporophyll bears:

 
 
 
 

739. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

744. Club moss and Peat moss belong to:

 
 
 
 

745. Embryophyta includes:

 
 
 
 

746. The sporangium of fern contains nearly:

 
 
 
 

747. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

751. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Soil fertility is lost by the activities of:

 
 
 
 

755. The rhizoids of Funaria are :

 
 
 
 

756. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

759. All algae have:

 
 
 
 

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

 
 
 
 

761. Maximum diversity of life forms occurs in :

 
 
 
 

762. Some biologists have used the term Mycetozoa for:

 
 
 
 

763. Sexual reproduction in Rhizopus is by:

 
 
 
 

764. Bivalved siliceous shell or frustule occur in:

 
 
 
 

765. 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?

 
 
 
 

766. Chemosynthetic bacteria are:

 
 
 
 

767. Fruiting body of lichens is :

 
 
 
 

768. Proembryo in Pinus is :

 
 
 
 

769. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

773. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

775. Viroids have:

 
 
 
 

776. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

779. Which bacteria convert nitrate into nitrogen?

 
 
 
 

780. Streptomycin is obtained from:

 
 
 
 

781. Vascular cryptogam is the term used for :

 
 
 
 

782. Male gametes in Dryopteris are:

 
 
 
 

783. Cellular slime mold is:

 
 
 
 

784. The chief characteristic of class Ascomycetes is:

 
 
 
 

785. Cycas is:

 
 
 
 

786. Etiology includes the study of :

 
 
 
 

787. Zoogametes are not found in:

 
 
 
 

788. Circular DNA is seen in:

 
 
 
 

789. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

791. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

793. Embryophyta includes :

 
 
 
 

794. Plasmids are:

 
 
 
 

795. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

797. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

800. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

802. Pneumonia is caused by:

 
 
 
 

803. The young leaves of Cycas have :

 
 
 
 

804. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. Number of capsomeres forming capsid of TMV is:

 
 
 
 

808. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

811. The megasporangium of Selaginella is:

 
 
 
 

812. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

817. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

819. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

821. 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?

 
 
 
 

822. The ferns are usually found:

 
 
 
 

823. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

825. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

829. The alga, Spirogyra are found in :

 
 
 
 

830. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

832. Choose the correct statement about Spirogyra:

 
 
 
 

833. 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?

 
 
 
 

834. 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:

 
 
 
 

835. Kuru, a human disease is caused by:

 
 
 
 

836. In Selaginella, the microsporangia are:

 
 
 
 

837. Red rot of sugarcane is caused by:

 
 
 
 

838. Saccharomyces ludwigii ascus produces:

 
 
 
 

839. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

842. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

845. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

847. Amoeba is a member of the phylum:

 
 
 
 

848. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

851. Green plants are classified as:

 
 
 
 

852. Bentham and Hooker placed gymnosperms:

 
 
 
 

853. The antherozoids of Funaria are :

 
 
 
 

854. The sexual reproductive organs in Rhizopus are:

 
 
 
 

855. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

857. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

859. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

861. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

863. Cycas is different from mango in :

 
 
 
 

864. attract the antherozoids of Funaria towards their archegonium: