Quiz_Random

1. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Cycas is :

 
 
 
 

7. Most common type of conjugation in Spirogyra is :

 
 
 
 

8. Diphtheria is caused by:

 
 
 
 

9. In Funaria :

 
 
 
 

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

 
 
 
 

11. Cell walls of Gram-positive bacteria contain:

 
 
 
 

12. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

17. 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:

 
 
 
 

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

 
 
 
 

19. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

21. The lambda phase is a:

 
 
 
 

22. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

23. Club moss and Peat moss belong to:

 
 
 
 

24. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

26. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. What are Cyanobacteria?

 
 
 
 

30. Woody climbers are known as :

 
 
 
 

31. Azolla and Salvinia both are:

 
 
 
 

32. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. Halophiles are the bacteria that require for growth:

 
 
 
 

40. Leaf spot of groundnut is caused by :

 
 
 
 

41. The source of litmus is :

 
 
 
 

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

 
 
 
 

43. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

44. John Hutchinson divided dicots into two divisions:

 
 
 
 

45. Pollination in Cycas takes place by :

 
 
 
 

46. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

48.

49. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Fruiting body of lichens is :

 
 
 
 

53. The fungi used as food are:

 
 
 
 

54. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

56. In a diplontic life cycle:

 
 
 
 

57. The roots of Cycas are :

 
 
 
 

58. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

60. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

61. Clostridium can:

 
 
 
 

62. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

68. Select the wrong statement:

 
 
 
 

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

 
 
 
 

70. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

77. Rhizopus and yeast are usually:

 
 
 
 

78. Which one of the following is a monocot?

 
 
 
 

79. The leaves of Funaria are :

 
 
 
 

80. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. Downy mildew disease is caused by :

 
 
 
 

88. Late blight of potato is caused by :

 
 
 
 

89. Funaria is :

 
 
 
 

90. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

92. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Streptomycin is obtained from:

 
 
 
 

96. Most of the lichens are composed of :

 
 
 
 

97. Which is a gametophytic tissue?

 
 
 
 

98. The smallest unit of classification is:

 
 
 
 

99. Smut of maize is caused by :

 
 
 
 

100. Spores of which plants have chloroplast:

 
 
 
 

101. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

103. Iodine is obtained from:

 
 
 
 

104. The root nodules of leguminous plants contain:

 
 
 
 

105. Antibiotic has been extracted from :

 
 
 
 

106. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Funaria is :

 
 
 
 

113. Lichen show :

 
 
 
 

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

 
 
 
 

115. Citrus canker is caused by :

 
 
 
 

116. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

120. Roots are absent in :

 
 
 
 

121. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. Yeast belongs to class:

 
 
 
 

129. Maximum diversity of life forms occurs in :

 
 
 
 

130. Nannandria are:

 
 
 
 

131. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

136. Plasmids are:

 
 
 
 

137. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

139. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

141. Linnaeus is credited with introducing:

 
 
 
 

142. Lichens are ecologically important because :

 
 
 
 

143. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

145. Ectocarpus produces:

 
 
 
 

146. Ethylene oxide is widely used to:

 
 
 
 

147. Triple antigen injection or vaccine are for:

 
 
 
 

148. Viruses have:

 
 
 
 

149. Pneumonia is caused by:

 
 
 
 

150. Placenta in fern is:

 
 
 
 

151. Fairy ring is the name given to:

 
 
 
 

152. Wine turns sour because of:

 
 
 
 

153. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

155. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

157. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

160. Cyanophage is a virus that attacks:

 
 
 
 

161. Cryptogams include :

 
 
 
 

162. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

164. 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?

 
 
 
 

165. Among the algae kelps are :

 
 
 
 

166. Most resistant spore in bacteria is:

 
 
 
 

167. Which lichen is called Reindeer moss?

 
 
 
 

168. Vegetative reproduction in Cycas is by means of :

 
 
 
 

169. In moss, sporophyte is formed on:

 
 
 
 

170. Black rust of wheat is caused by:

 
 
 
 

171. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

173. Which is a tautonym?

 
 
 
 

174. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

178. Enteric bacteria are those bacteria that live:

 
 
 
 

179. Aflatoxin is produced by:

 
 
 
 

180. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

182. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

184. The stele of Dryopteris is a:

 
 
 
 

185. Oswald Tippo’s classification is:

 
 
 
 

186. Male gametes in Dryopteris are:

 
 
 
 

187. Which part of Riccia bears nurse cells?

 
 
 
 

188. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

192. The smallest bacterium is:

 
 
 
 

193. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

196. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

198. Club moss is the common name of :

 
 
 
 

199. The disease apple scab is caused by:

 
 
 
 

200. Where does meiosis occur in yeast?

 
 
 
 

201. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

206. Bacteriophage consists of:

 
 
 
 

207. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

210. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

212. The flagella of Chlamydomonas are:

 
 
 
 

213. In binomial system most of the words are:

 
 
 
 

214. Fruits are not found in :

 
 
 
 

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

 
 
 
 

216. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

218. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Ulothrix produces :

 
 
 
 

224. Gametophyte is the main plant body in :

 
 
 
 

225. What is a vector?

 
 
 
 

226. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

228. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

231. Seeds are characteristically found in :

 
 
 
 

232. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. Which of the following applies to Selaginella?

 
 
 
 

236. Bacteria are placed under:

 
 
 
 

237. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

240. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

242. In Gymnosperms endosperm is a:

 
 
 
 

243. 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?

 
 
 
 

244. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

247. Yeast is a source of:

 
 
 
 

248. Rhizophore of Selaginella is:

 
 
 
 

249. Parmelia belongs to :

 
 
 
 

250. Mycoplasmas are not viruses in nature because:

 
 
 
 

251. 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:

 
 
 
 

252. The spermatozoids of Cycas are :

 
 
 
 

253. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

255. Bacteria differ from viruses in being sensitive to:

 
 
 
 

256. Spirogyra differs from moss protonema in having :

 
 
 
 

257. Winged seeds are found in :

 
 
 
 

258. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

265. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

274. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

277. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. Which of the following statement is correct?

 
 
 
 

282. Cycas revoluta is widely grown as :

 
 
 
 

283. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

286. Which of the following lichens is harmful?

 
 
 
 

287. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

288. Viroids have:

 
 
 
 

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

 
 
 
 

290. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

295. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

297. Climbers are found in genus:

 
 
 
 

298. Germination of the seed of Pinus is :

 
 
 
 

299. The group algae possesses representatives belonging to kingdom:

 
 
 
 

300. Who among the following discovered virus?

 
 
 
 

301. The prothallus of fern is:

 
 
 
 

302. Which of the following is true for Selaginella?

 
 
 
 

303. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

305. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

307. Germ theory of disease was proposed by:

 
 
 
 

308. Late blight of potato is caused by:

 
 
 
 

309. Ovules are not found enclosed in ovary in :

 
 
 
 

310. Protistan algae obtain their food as:

 
 
 
 

311. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

313. Select the correct statement: (NEET 2016)

 
 
 
 

314. 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:

 
 
 
 

315. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

317. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

321. Who discovered heterothallism in fungi?

 
 
 
 

322. Each chloroplast in Spirogyra bears :

 
 
 
 

323. The antherozoids of Funaria are :

 
 
 
 

324. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

326. The lichens growing on rocks are called :

 
 
 
 

327. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

329. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. In Cycas the fertilization is:

 
 
 
 

333. Nitrogen-fixing bacteria may be located:

 
 
 
 

334. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

336. Longest known virus is:

 
 
 
 

337. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

339. One of the distinctive feature of Spirogyra is :

 
 
 
 

340. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. What is special feature of fern archegonia?

 
 
 
 

344. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

347. The coralloid roots are :

 
 
 
 

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

 
 
 
 

349. Interferon is a:

 
 
 
 

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

 
 
 
 

351. To which country Antony van Leeuwenhoek belong?

 
 
 
 

352. Protists which are diploid reproduce sexually by:

 
 
 
 

353. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

355. Siphonogamy is found in:

 
 
 
 

356. All algae have:

 
 
 
 

357. Absorptive nutrition is:

 
 
 
 

358. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

363. Rhizoids of Riccia are :

 
 
 
 

364. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

366. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

368. Disease resistant plant varieties can be produced by :

 
 
 
 

369. Which of the following are included in Tracheophyta?

 
 
 
 

370. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

372. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

374. The chief characteristic of class Ascomycetes is:

 
 
 
 

375. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

380. Which is an edible fungus?

 
 
 
 

381. Methanogens belong to:

 
 
 
 

382. Some diseases caused by bacteria are:

 
 
 
 

383. What is absent in Deuteromycetes?

 
 
 
 

384. Polystelic condition is found in:

 
 
 
 

385. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

389. Viruses are commonly transmitted in plants through:

 
 
 
 

390. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

393. 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:

 
 
 
 

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

 
 
 
 

395. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

397. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

399. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

401. Pteridophytes are also known as :

 
 
 
 

402. The DNA of E coli is:

 
 
 
 

403. LSD is:

 
 
 
 

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

 
 
 
 

405. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

408. Lichens form the first community in

 
 
 
 

409. Virus and bacteriophage are made-up of:

 
 
 
 

410. Streptomyces falls under:

 
 
 
 

411. Bacteria are considered to be plants because they:

 
 
 
 

412. Rhizopus belongs to:

 
 
 
 

413. Synzoospore is produced in:

 
 
 
 

414. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

416. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

418. Most of the algae are :

 
 
 
 

419. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

421. Centric discoid form of diatom is:

 
 
 
 

422. True sexuality is not found in:

 
 
 
 

423. Common phycobiont in a lichen is :

 
 
 
 

424. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

426. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

428. Ovary is absent in :

 
 
 
 

429. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

432. Bryophyta have been placed in cryptogams because:

 
 
 
 

433. In a bacteriophage, DNA is present in:

 
 
 
 

434. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

436. Diploxylic vascular bundles are found in:

 
 
 
 

437. In Cycas which structure is equivalent to stamen?

 
 
 
 

438. Red rot of sugarcane is caused by :

 
 
 
 

439. Small epidermal swellings due to infection are called :

 
 
 
 

440. Cellular slime mold is:

 
 
 
 

441. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

446. Facultative parasite is:

 
 
 
 

447.

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

 
 
 
 

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

 
 
 
 

450. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

451. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

453. The orders generally have the uniform endings:

 
 
 
 

454. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

456. The Rhizopus gametes are formed in:

 
 
 
 

457. TMV was isolated in crystalline form by:

 
 
 
 

458. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

460. The fungi are mostly:

 
 
 
 

461. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

463. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

465. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

468. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

471. Citrus canker is caused by:

 
 
 
 

472. The sporophyte of Riccia is :

 
 
 
 

473. Etiology includes the study of :

 
 
 
 

474. The chief characteristic of bryophyta is that :

 
 
 
 

475. Water bloom is generally caused by :

 
 
 
 

476. The leaves of Funaria are :

 
 
 
 

477. Liverworts are included in :

 
 
 
 

478. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

480. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

482. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

484. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

490. Heterospory is the production of:

 
 
 
 

491. How is moss different from fern?

 
 
 
 

492. White rust of crucifers is caused by:

 
 
 
 

493. Which is a fungicide?

 
 
 
 

494. Why is Cycas called a living fossil?

 
 
 
 

495. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

499. The term stele was given by:

 
 
 
 

500. Pasteurization of milk involves heating for:

 
 
 
 

501. Metulae are found in:

 
 
 
 

502. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

505. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

507. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

510. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

512. Nitrifying bacteria play an important role by converting:

 
 
 
 

513. Meristele of fern is:

 
 
 
 

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

 
 
 
 

515. Spermatophyta are characterized by producing:

 
 
 
 

516. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

518.

 

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

 
 
 
 

520. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

522. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

524. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

525. How a fern differs from a moss?

 
 
 
 

526. Desired type of Cycas can be grown by:

 
 
 
 

527. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

529. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

533. Agar-agar is obtained from:

 
 
 
 

534. Redness of red sea is due to :

 
 
 
 

535. Special feature of pollen grains of Pinus is :

 
 
 
 

536. Spermatophyta are characterized by producing:

 
 
 
 

537. Green plants are classified as :

 
 
 
 

538. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

540. Cycas is different from mango in :

 
 
 
 

541. The fern plant is:

 
 
 
 

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

 
 
 
 

543. Coenogamete is found in:

 
 
 
 

544. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

546. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

548. Pinus is:

 
 
 
 

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

 
 
 
 

550. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

554. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

556. Pasteurized milk is:

 
 
 
 

557. The teeth of peristome of Funaria are :

 
 
 
 

558. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

560. Which is absent from the xylem of Cycas?

 
 
 
 

561. All protozoans possess:

 
 
 
 

562. Red rot of sugarcane is caused by:

 
 
 
 

563. 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:

 
 
 
 

564. Heterotrichous habit means :

 
 
 
 

565. Azolla growing in paddy fields helps in:

 
 
 
 

566. The sporangiophores in Rhizopus are:

 
 
 
 

567. Vascular cryptogams is the term used for:

 
 
 
 

568. In moss, calyptra is formed from:

 
 
 
 

569. In Cycas:

 
 
 
 

570. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

573. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

576. The megaspore of Selaginella on germination produces:

 
 
 
 

577. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

580. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

582. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

584. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

585. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

587. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. Antibiotics cure the disease by:

 
 
 
 

591. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

593. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

597. 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?

 
 
 
 

598. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. Sporophyte of Funaria is :

 
 
 
 

603. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

609. Kuru, a human disease is caused by:

 
 
 
 

610. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

611. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

614. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

616. Chief constituents of bordeaux mixture are :

 
 
 
 

617. Pollination drop is:

 
 
 
 

618. Majority of lichens are :

 
 
 
 

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

 
 
 
 

620. All archaebacteria lack:

 
 
 
 

621. Which of the following does not contain chlorophyll?

 
 
 
 

622. The chromosomal number in:

 
 
 
 

623. Generic name of mango is:

 
 
 
 

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

 
 
 
 

625. Who named prion?

 
 
 
 

626. Black rust of wheat is caused by:

 
 
 
 

627. 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?

 
 
 
 

628. Cycas is:

 
 
 
 

629. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

631. The first to isolate a plant virus was:

 
 
 
 

632. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

637. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

640. 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:

 
 
 
 

641. In moss, sporogenous tissue arises from:

 
 
 
 

642. The mycelium of Rhizopus is:

 
 
 
 

643. What is the role of nitrifying bacteria?

 
 
 
 

644. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

647. The antibiotic is obtained from:

 
 
 
 

648. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

650. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

652. Selaginella differs from Moss in having:

 
 
 
 

653. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

656. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

663. Ovary is absent in:

 
 
 
 

664. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

667. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

669. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

675. Embryophyta includes:

 
 
 
 

676. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

678. Which of the following statements is not correct?

 
 
 
 

679. The mode of nutrition of bacteria is usually:

 
 
 
 

680. Bacteriophages have been used as:

 
 
 
 

681. What is streptomycin?

 
 
 
 

682. Bacteria are found everywhere, except:

 
 
 
 

683. The disease symptom necrosis refers to :

 
 
 
 

684. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

686. Yeast grows more rapidly in:

 
 
 
 

687. The order generally ends with:

 
 
 
 

688. Pinus gerardiana is :

 
 
 
 

689. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

692. The role of meiosis is for:

 
 
 
 

693. Milk is converted to curd by:

 
 
 
 

694. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

698. In moss, peristomial teeth are:

 
 
 
 

699. Most primitive group of vascular plants are:

 
 
 
 

700. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

704. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

706. Total parasites belong to:

 
 
 
 

707. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

708. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

710. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

712. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

714. Number of capsomeres forming capsid of TMV is:

 
 
 
 

715. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

717. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

719. The two conjugating gametangia of Rhizopus are:

 
 
 
 

720. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

723. Cocci types of bacteria are:

 
 
 
 

724. Ergot of rye is caused by:

 
 
 
 

725. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

727. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

729. Which is not true for Escherichia coli?

 
 
 
 

730. The ferns are usually found:

 
 
 
 

731. The vascular bundles of Cycas stem are :

 
 
 
 

732. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

733. Zoogametes are not found in:

 
 
 
 

734. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. Ergot is obtained from :

 
 
 
 

739. . Tapetum develops in:

 
 
 
 

740. Most primitive kind of flower is represented by:

 
 
 
 

741. Banana bunchy top is caused by :

 
 
 
 

742. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

745. Gymnosperms could also be called as:

 
 
 
 

746. The sporangium of fern contains nearly:

 
 
 
 

747. Isomorphic type alternation of generation is found in:

 
 
 
 

748. Which condition is found in Cycas?

 
 
 
 

749. Heterosporous pteridophytes always form:

 
 
 
 

750. Fern prothallus produces:

 
 
 
 

751. Embryophyta includes :

 
 
 
 

752. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

755. Water-net is the name of:

 
 
 
 

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

 
 
 
 

757. Photoautotrophic bacteria have:

 
 
 
 

758. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

759. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

761. Mycoplasma is different from bacteria due to:

 
 
 
 

762. Discovery of penicillin was based on:

 
 
 
 

763. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

765. Mucilaginous canals in Cycas are found in :

 
 
 
 

766. Pteridophyta are also called:

 
 
 
 

767. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

768. The gametophyte of fern bears:

 
 
 
 

769. Who discovered streptomycin?

 
 
 
 

770. The nucleus of bacteria is:

 
 
 
 

771.

772. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

776. Bivalved siliceous shell or frustule occur in:

 
 
 
 

777. In moss, reduction division occurs in :

 
 
 
 

778. Saccharomyces is well known for:

 
 
 
 

779. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

781. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

785. Which is an exception to cell theory?

 
 
 
 

786. Bacteria growing on synthetic medium are called:

 
 
 
 

787. Bentham and Hooker placed gymnosperms:

 
 
 
 

788. The fungi that grow on wood are called:

 
 
 
 

789. What are plasmids?

 
 
 
 

790. Sometimes the bacterial cell is enclosed in:

 
 
 
 

791. Sporophyte of fern is:

 
 
 
 

792. Cycas is similar to a mustard plant :

 
 
 
 

793. The development of sporangium in Selaginella is:

 
 
 
 

794. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. The Rhizopus is:

 
 
 
 

798. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

800. The upper region of moss capsule is :

 
 
 
 

801. Typhoid in man is caused by:

 
 
 
 

802. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

806. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

807. Heterospory and ligulate leaves are a feature of:

 
 
 
 

808. Some bacteria cannot be killed easily because of:

 
 
 
 

809. Pollination in Pinus is :

 
 
 
 

810. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

813. In Selaginella, the microsporangia are:

 
 
 
 

814. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

815. Most appropriate word for protozoans is:

 
 
 
 

816. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

819. The truncated cone of HIV consists of:

 
 
 
 

820. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

826. Funaria can be differentiated from Cycas :

 
 
 
 

827. The archegonia in Selaginella develop on:

 
 
 
 

828. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

831. The gametophyte of moss has distinct phases :

 
 
 
 

832. Chemosynthetic bacteria are:

 
 
 
 

833. Acetobacter is useful in:

 
 
 
 

834. Which bacteria convert nitrate into nitrogen?

 
 
 
 

835. Funaria are commonly found :

 
 
 
 

836. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

838. Asexual reproductive body of Volvox is called:

 
 
 
 

839. In Pteris, the archegonia are present:

 
 
 
 

840. Lichens show :

 
 
 
 

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

 
 
 
 

842. The spur of Pinus roxburghii has :

 
 
 
 

843. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

846. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

848. The young leaves of Cycas have :

 
 
 
 

849. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

852. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

855. Psilotum is:

 
 
 
 

856. The fungi are usually:

 
 
 
 

857. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

859. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. Fern prothallus is:

 
 
 
 

864. The photosynthetic protists are: