Quiz_Random

1. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

2. Bacteria were first discovered by:

 
 
 
 

3. Fern phloem lacks:

 
 
 
 

4. Pinus is:

 
 
 
 

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

 
 
 
 

6. In Pteris, the roots are:

 
 
 
 

7. Parmelia belongs to :

 
 
 
 

8. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

13. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

15. Polystelic condition is found in:

 
 
 
 

16. The stele of Dryopteris is a:

 
 
 
 

17. Which condition is found in Cycas?

 
 
 
 

18. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

20. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

25. Who discovered streptomycin?

 
 
 
 

26. Citrus canker is caused by:

 
 
 
 

27. Cocci types of bacteria are:

 
 
 
 

28. The Rhizopus is:

 
 
 
 

29. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. Bacteriophages have been used as:

 
 
 
 

34. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

36. Most of the lichens are composed of :

 
 
 
 

37. The sexual reproductive organs in Rhizopus are:

 
 
 
 

38. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

40. Spermatophyta are characterized by producing:

 
 
 
 

41. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

43. In Cycas which structure is equivalent to stamen?

 
 
 
 

44. The similarity between cyanobacteria and bacteria:

 
 
 
 

45. Most appropriate word for protozoans is:

 
 
 
 

46. The mycelium of Rhizopus is:

 
 
 
 

47. Indusium in Dryopteris is:

 
 
 
 

48. The prothallus of fern is:

 
 
 
 

49. Kuru, a human disease is caused by:

 
 
 
 

50. Fern plants are:

 
 
 
 

51. Pasteurized milk is:

 
 
 
 

52. Mostly type of zygospore in Ulothrix is:

 
 
 
 

53. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

55. Water-borne bacterial diseases are:

 
 
 
 

56. The DNA of E coli is:

 
 
 
 

57. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

59. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

61. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

63. Penicillin was discovered by:

 
 
 
 

64. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

66. The tree fern is:

 
 
 
 

67. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. In moss, reduction division occurs in :

 
 
 
 

73. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Funaria is :

 
 
 
 

80. The tallest moss in the world is :

 
 
 
 

81. Photoautotrophic bacteria have:

 
 
 
 

82. Generic name of mango is:

 
 
 
 

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

 
 
 
 

84. Embryophyta includes :

 
 
 
 

85. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. Choose the correct statement about Spirogyra:

 
 
 
 

89. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

91. Absorptive nutrition is:

 
 
 
 

92. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

94. Vascular cryptogam is the term used for :

 
 
 
 

95. Maximum diversity of life forms occurs in :

 
 
 
 

96. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

98. Saccharomyces is well known for:

 
 
 
 

99. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

101. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

105. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

107. Which of the following is a parasitic algae?

 
 
 
 

108. Ovules are not found enclosed in ovary of:

 
 
 
 

109. The sporangia of Selaginella are attached:

 
 
 
 

110. Most of the algae are :

 
 
 
 

111. Asexual reproductive body of Volvox is called:

 
 
 
 

112. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

114.

115. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

117. Rhizophore of Selaginella is:

 
 
 
 

118. 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?

 
 
 
 

119. 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?

 
 
 
 

120. Which of the following lichens is harmful?

 
 
 
 

121. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

126. Cycas is:

 
 
 
 

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

 
 
 
 

128. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

132. Meristele of fern is:

 
 
 
 

133. Heterocysts are found in :

 
 
 
 

134. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

136. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

139. 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:

 
 
 
 

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

 
 
 
 

141. Saccharomyces is used in:

 
 
 
 

142. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

144. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

146. Heterospory and ligulate leaves are a feature of:

 
 
 
 

147. Who named prion?

 
 
 
 

148. What are plasmids?

 
 
 
 

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

 
 
 
 

150. Cellular slime mold is:

 
 
 
 

151. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

153. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

160. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

162. Chief constituents of bordeaux mixture are :

 
 
 
 

163. To which country Antony van Leeuwenhoek belong?

 
 
 
 

164. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

169. Who among the following discovered virus?

 
 
 
 

170. The chloroplast in Ulothrix is :

 
 
 
 

171. How is moss different from fern?

 
 
 
 

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

 
 
 
 

173. Male gametophyte of Selaginella is found:

 
 
 
 

174. Fern prothallus is:

 
 
 
 

175. 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?

 
 
 
 

176. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

179. The rhizoids of Funaria are :

 
 
 
 

180. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

183. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

185. The roots of Cycas are :

 
 
 
 

186. Protistan algae obtain their food as:

 
 
 
 

187. In Gymnocarpeae the fruiting body is :

 
 
 
 

188. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

190. Cycas revoluta is widely grown as :

 
 
 
 

191. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

193. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

195. In Cycas:

 
 
 
 

196. The coralloid roots are :

 
 
 
 

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

 
 
 
 

198. Proembryo in Pinus is :

 
 
 
 

199. Pteridophytes are also known as :

 
 
 
 

200. The gametophyte of moss has distinct phases :

 
 
 
 

201. Fruits are not found in :

 
 
 
 

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

 
 
 
 

203. True sexuality is not found in:

 
 
 
 

204. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

206. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

208. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

210. LSD is:

 
 
 
 

211. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

213. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

217. In a diplontic life cycle:

 
 
 
 

218. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

221. Selaginella differs from Moss in having:

 
 
 
 

222. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

228. Pythium debaryanum is the causative agent of:

 
 
 
 

229. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

231. The alga, Spirogyra are found in :

 
 
 
 

232. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

234. In Funaria :

 
 
 
 

235. Nitrifying bacteria play an important role by converting:

 
 
 
 

236. Which statement is wrong in regard to bacteria?

 
 
 
 

237. Diploxylic vascular bundles are found in:

 
 
 
 

238. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

240. Etiology includes the study of :

 
 
 
 

241. The first to isolate a plant virus was:

 
 
 
 

242. Red rot of sugarcane is caused by :

 
 
 
 

243. The development of sporangium in Selaginella is:

 
 
 
 

244. Azolla growing in paddy fields helps in:

 
 
 
 

245. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. Botulism is a:

 
 
 
 

249. Antibiotics cure the disease by:

 
 
 
 

250. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

252. Which part of Riccia bears nurse cells?

 
 
 
 

253. Sporophyte of Funaria is :

 
 
 
 

254. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

257. Mycoplasmas are not viruses in nature because:

 
 
 
 

258. The chromosomal number in:

 
 
 
 

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

 
 
 
 

260. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

264. Majority of lichens are :

 
 
 
 

265. Black rust of wheat is caused by:

 
 
 
 

266. The most important property of yeast is:

 
 
 
 

267. Which of the following is a heterosporous pteridophyte?

 
 
 
 

268. The teeth of peristome of Funaria are :

 
 
 
 

269. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. Male gametes in Dryopteris are:

 
 
 
 

273. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

279. Lichens are pioneers of vegetation in a :

 
 
 
 

280. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. Club moss is the common name of :

 
 
 
 

284. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

286. Which have the largest antherozoid?

 
 
 
 

287. TMV was isolated in crystalline form by:

 
 
 
 

288. Cycas is different from mango in :

 
 
 
 

289. The nucleus of bacteria is:

 
 
 
 

290. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

293. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

298. Total parasites belong to:

 
 
 
 

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

 
 
 
 

300. Each chloroplast in Spirogyra bears :

 
 
 
 

301. Lichens reproduce by :

 
 
 
 

302. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

310. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

312. Little leaf disease of Brinjal is caused by:

 
 
 
 

313. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

316. The fungi used as food are:

 
 
 
 

317. The zoospores of Ulothrix are :

 
 
 
 

318. The spermatozoids of Cycas are :

 
 
 
 

319. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

321. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

323. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

325.

326. Metulae are found in:

 
 
 
 

327. The gametophyte produced by apospory is :

 
 
 
 

328. Cycas is :

 
 
 
 

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

 
 
 
 

330. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

332. The prothallus of fern represents the plant:

 
 
 
 

333. The development of Selaginella embryo is:

 
 
 
 

334. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

338. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

340. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

344. Centric discoid form of diatom is:

 
 
 
 

345. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

347. Isomorphic type alternation of generation is found in:

 
 
 
 

348. The young leaves of Cycas have :

 
 
 
 

349. Plasmids are:

 
 
 
 

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

 
 
 
 

351. Photosynthetic bacteria have:

 
 
 
 

352. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

354. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

356. Most primitive embryophytes are placed in :

 
 
 
 

357. Cell walls of Gram-positive bacteria contain:

 
 
 
 

358. Which one of the following statement is wrong?

 
 
 
 

359. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

362. Reproduction in Rhizopus is:

 
 
 
 

363. In Selaginella, the microsporangia are:

 
 
 
 

364. Select the wrong statement:

 
 
 
 

365. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

367. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

369. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

371. Standard size of a herbarium sheet is:

 
 
 
 

372. Mycoplasma was discovered by:

 
 
 
 

373. The sporangium of fern contains nearly:

 
 
 
 

374. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

375. Gram stain is used to:

 
 
 
 

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

 
 
 
 

377. Clostridium can:

 
 
 
 

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

 
 
 
 

379. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

382.

383. The zygospore in Rhizopus on germination forms:

 
 
 
 

384. What is mycorrhiza?

 
 
 
 

385. Ergot is obtained from :

 
 
 
 

386. Economic importance of bacteria lies in their being:

 
 
 
 

387. Which of the following are included in Tracheophyta?

 
 
 
 

388. 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:

 
 
 
 

389. Which of the following statements is not correct?

 
 
 
 

390. Bryophyta have a special character from other plants:

 
 
 
 

391. Nannandria are:

 
 
 
 

392. Which lichen is called Reindeer moss?

 
 
 
 

393. Nitrogen-fixing bacteria may be located:

 
 
 
 

394. What is special feature of fern archegonia?

 
 
 
 

395. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

396. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

398. Which of the following is a monocot?

 
 
 
 

399. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

402. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

405. Select the wrong statement:

 
 
 
 

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

 
 
 
 

407. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

409. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

411. The term stele was given by:

 
 
 
 

412. Black rust of wheat is caused by:

 
 
 
 

413. Which of the following are included in Tracheophyta?

 
 
 
 

414. Funaria is a Bryophyta because :

 
 
 
 

415. In angiosperms double fertilization represents:

 
 
 
 

416. Bacteria growing on synthetic medium are called:

 
 
 
 

417. 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:

 
 
 
 

418. 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:

 
 
 
 

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

 
 
 
 

420. Mycoplasma is different from bacteria due to:

 
 
 
 

421. The Rhizopus gametes are formed in:

 
 
 
 

422. 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?

 
 
 
 

423. Viroids have:

 
 
 
 

424. The photosynthetic protists are:

 
 
 
 

425. Which is an edible fungus?

 
 
 
 

426. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

429. NBG of Lucknow is now named as:

 
 
 
 

430. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

432. Fruits are not found in:

 
 
 
 

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

 
 
 
 

434. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

435. Soil fertility is lost by the activities of:

 
 
 
 

436. Which fixes atmospheric nitrogen?

 
 
 
 

437. Penicillin is obtained from:

 
 
 
 

438. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

440. Bacteriophage consists of:

 
 
 
 

441. Infective part of virus was discovered by:

 
 
 
 

442. Banana bunchy top is caused by :

 
 
 
 

443. Which organisms are the oldest life forms?

 
 
 
 

444. Pasteur is famous for his:

 
 
 
 

445. Downy mildew disease is caused by :

 
 
 
 

446. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. Enzymes are absent in:

 
 
 
 

450. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

453. Woody climbers are known as :

 
 
 
 

454. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

457. Red rot of sugarcane is caused by:

 
 
 
 

458. The leaves of Funaria are :

 
 
 
 

459. Chemosynthetic bacteria are:

 
 
 
 

460. Select the correct statement: (NEET 2016)

 
 
 
 

461. Spores of which plants have chloroplast:

 
 
 
 

462. The leaves of Funaria are :

 
 
 
 

463. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

465. The gametophyte of fern bears:

 
 
 
 

466. Rhizopus and yeast are usually:

 
 
 
 

467. Lichens show :

 
 
 
 

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

 
 
 
 

469. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

473. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

475. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478. Embryophyta includes:

 
 
 
 

479. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

481. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

483. Lichens are the indicator of pollution :

 
 
 
 

484. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

486. Lichens are indicators of :

 
 
 
 

487. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

490. Ovary is absent in :

 
 
 
 

491. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

494. The disease apple scab is caused by:

 
 
 
 

495. Which of the following is true for viruses?

 
 
 
 

496. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

498. Pollination drop is:

 
 
 
 

499. Spermatophyta are characterized by producing:

 
 
 
 

500. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

503. E coli is a:

 
 
 
 

504. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

505. Some biologists have used the term Mycetozoa for:

 
 
 
 

506. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

508. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

510. Who discovered cyanophages?

 
 
 
 

511. Spirogyra differs from moss protonema in having :

 
 
 
 

512. One of the distinctive feature of Spirogyra is :

 
 
 
 

513. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

515. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

520. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

523. Cryptogams include :

 
 
 
 

524. Some bacteria cannot be killed easily because of:

 
 
 
 

525. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. Who discovered heterothallism in fungi?

 
 
 
 

529. Tautonyms are illegitimate in:

 
 
 
 

530. Which of the following is true for Selaginella?

 
 
 
 

531. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

534. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

536. Lichen show :

 
 
 
 

537. The leafy fern plant represents the:

 
 
 
 

538. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

540. The lambda phase is a:

 
 
 
 

541. Meiosis in Ulothrix takes place:

 
 
 
 

542. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

544. Mixed cropping helps :

 
 
 
 

545. Lichens form the first community in

 
 
 
 

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

 
 
 
 

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

 
 
 
 

548. Facultative parasite is:

 
 
 
 

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

 
 
 
 

550. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

552. Enteric bacteria are those bacteria that live:

 
 
 
 

553. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

554. Ethylene oxide is widely used to:

 
 
 
 

555. An Hfr bacterium is one that contains:

 
 
 
 

556. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. Broad spectrum antibiotic is, which:

 
 
 
 

563. Pinus microsporophyll bears:

 
 
 
 

564. The male gametes of Pinus are :

 
 
 
 

565. Acellular slime mold is/are:

 
 
 
 

566. Virus and bacteriophage are made-up of:

 
 
 
 

567. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

570. Which causes red tide?

 
 
 
 

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

 
 
 
 

572. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

575. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

577. Halophiles are the bacteria that require for growth:

 
 
 
 

578. The flagella of Chlamydomonas are:

 
 
 
 

579. The largest known bacterium is:

 
 
 
 

580. Seeds are characteristically found in :

 
 
 
 

581. Azolla and Salvinia both are:

 
 
 
 

582. Spirogyra represents the :

 
 
 
 

583. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

585. Antibiotic has been extracted from :

 
 
 
 

586. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

588. Cycas plant in appearance resembles :

 
 
 
 

589. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. All protozoans possess:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. Pollination in Cycas takes place by :

 
 
 
 

602. The largest alga is:

 
 
 
 

603. The phloem of vascular system of Cycas is :

 
 
 
 

604. The seedless plants which possess vascular tissues are:

 
 
 
 

605. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

607. The role of meiosis is for:

 
 
 
 

608. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

610. Black rust of wheat is caused by:

 
 
 
 

611. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

615. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

620. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

621. Red rot of sugarcane is caused by :

 
 
 
 

622. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

626. Common phycobiont in a lichen is :

 
 
 
 

627. The ascus of yeast contains:

 
 
 
 

628. The source of litmus is :

 
 
 
 

629. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

630. Yeast is a source of:

 
 
 
 

631. Funaria is :

 
 
 
 

632. Viruses are considered to be:

 
 
 
 

633. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

635. The fungi are mostly:

 
 
 
 

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

 
 
 
 

637. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

639. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

641. Pteridophyta are also called:

 
 
 
 

642. Multicellular and jacketed sex organs are found in :

 
 
 
 

643. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

646. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

648. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

650. Sexual reproduction in Rhizopus is by:

 
 
 
 

651. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

653. Acetobacter is useful in:

 
 
 
 

654. Green plants are classified as:

 
 
 
 

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

 
 
 
 

656. In Cycas microsporangia are borne on:

 
 
 
 

657. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

659. Mycoplasma contains:

 
 
 
 

660. Viruses have:

 
 
 
 

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

 
 
 
 

662. How a fern differs from a moss?

 
 
 
 

663. Placenta in fern is:

 
 
 
 

664. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

666. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

667. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

669. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

670. Which of the following applies to Selaginella?

 
 
 
 

671. John Hutchinson divided dicots into two divisions:

 
 
 
 

672. Interferon is a:

 
 
 
 

673. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

676. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

679. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

681. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

685. Which is a tautonym?

 
 
 
 

686. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

689. Rice, pea, potato are :

 
 
 
 

690. Desired type of Cycas can be grown by:

 
 
 
 

691. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

694. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

696. Fruits are not found in Cycas because:

 
 
 
 

697. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

699. The order generally ends with:

 
 
 
 

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

 
 
 
 

701. Psilotum is:

 
 
 
 

702. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

707. The leaf of Cycas shows:

 
 
 
 

708. Anoxygenic photosynthesis occurs in:

 
 
 
 

709. Roots are absent in :

 
 
 
 

710. Oswald Tippo’s classification was based on :

 
 
 
 

711. Oswald Tippo’s classification is:

 
 
 
 

712. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

715. The gametophyte of fern is as:

 
 
 
 

716. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

721. The two conjugating gametangia of Rhizopus are:

 
 
 
 

722. Which is not true for Escherichia coli?

 
 
 
 

723. Longest known virus is:

 
 
 
 

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

 
 
 
 

725. Most primitive embryophytes are placed in:

 
 
 
 

726. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

727. Most common type of conjugation in Spirogyra is :

 
 
 
 

728. Usually, bacteria reproduce by:

 
 
 
 

729. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

731. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

734. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

737. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

742. The ferns are usually found:

 
 
 
 

743. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

745. Reproduction in Cycas takes place by :

 
 
 
 

746. Lichens reproduce by :

 
 
 
 

747. Late blight of potato is caused by:

 
 
 
 

748. Vascular cryptogams is the term used for:

 
 
 
 

749. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. The sporangiophores in Rhizopus are:

 
 
 
 

753. Early blight of potato is caused by:

 
 
 
 

754. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

756. To which class Riccia belongs :

 
 
 
 

757. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

760. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

762. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

764. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

765. Botulinum toxin effects:

 
 
 
 

766. In Funaria, calyptra is derived from :

 
 
 
 

767. Aflatoxin is produced as a product in :

 
 
 
 

768. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

770. In Herpes virus DNA is:

 
 
 
 

771. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

773. Green plants are classified as :

 
 
 
 

774. Mycoplasma are:

 
 
 
 

775. Seeds are characteristically found in:

 
 
 
 

776. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

778. Which is a fungicide?

 
 
 
 

779. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

783. Bacteria are considered to be plants because they:

 
 
 
 

784. Bacteria are placed under:

 
 
 
 

785. Ulothrix produces :

 
 
 
 

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

 
 
 
 

787. Siphonogamy is found in:

 
 
 
 

788. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

790. Sexual reproduction of lichen is due to :

 
 
 
 

791. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

793. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

796. Milk is converted to curd by:

 
 
 
 

797. An alga which is rich in proteins:

 
 
 
 

798. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

802. 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:

 
 
 
 

803. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

805. Leprosy is caused by:

 
 
 
 

806. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

809. The fungi are usually:

 
 
 
 

810. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

812. White rust of crucifers is caused by:

 
 
 
 

813. 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:

 
 
 
 

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

 
 
 
 

815. Chemosynthetic bacteria are:

 
 
 
 

816. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

822. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

823. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

825. A gill of Agaricus:

 
 
 
 

826. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. In moss, sporophyte is formed on:

 
 
 
 

834. Transfusion tissue is present in the leaflet of:

 
 
 
 

835. Pythium debaryanum is the causative agent of:

 
 
 
 

836. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839.

 

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

 
 
 
 

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

 
 
 
 

842. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

844. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

846. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

851. Winged pollen grains are found in :

 
 
 
 

852. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

854. Winged seeds are found in :

 
 
 
 

855. The spur of Pinus roxburghii has :

 
 
 
 

856. Amoeba is a member of the phylum:

 
 
 
 

857. Coenogamete is found in:

 
 
 
 

858. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

860. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

864. Facultative saprophyte is: