Quiz_Random

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

 
 
 
 

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

 
 
 
 

3. Which of the following are included in Tracheophyta?

 
 
 
 

4. Total parasites belong to:

 
 
 
 

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

 
 
 
 

6. The seedless plants which possess vascular tissues are:

 
 
 
 

7. Which class of Protozoa includes all parasitic forms?

 
 
 
 

8. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Infective part of virus was discovered by:

 
 
 
 

12. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

14. The coralloid roots are :

 
 
 
 

15. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

18. Vascular tissue is found in :

 
 
 
 

19. Which is the nuclear material in bacteria?

 
 
 
 

20. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

22. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

24. How is moss different from fern?

 
 
 
 

25. Downy mildew disease is caused by :

 
 
 
 

26. The leaf of Cycas shows:

 
 
 
 

27. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

29. Which is absent from the xylem of Cycas?

 
 
 
 

30. Cellular slime mold is:

 
 
 
 

31. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

36. Common phycobiont in a lichen is :

 
 
 
 

37. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Pollination in Cycas takes place by :

 
 
 
 

43. Where does meiosis occur in yeast?

 
 
 
 

44. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. In moss, conducting tissue is made up of

 
 
 
 

49. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

50.

 

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

 
 
 
 

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

 
 
 
 

53. What is special feature of fern archegonia?

 
 
 
 

54. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Ulothrix produces :

 
 
 
 

58. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

59. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

61. Penicillin was discovered by:

 
 
 
 

62. Which have the largest antherozoid?

 
 
 
 

63. Lichens reproduce by :

 
 
 
 

64. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

68. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

70. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

72. Placenta in fern is:

 
 
 
 

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

 
 
 
 

74. Redness of red sea is due to :

 
 
 
 

75. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

77.

78. Most appropriate word for protozoans is:

 
 
 
 

79. First animal pathogenic virus was discovered by:

 
 
 
 

80. Cyanophage is a virus that attacks:

 
 
 
 

81. 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?

 
 
 
 

82. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

98. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

103. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

105. The lichens growing on rocks are called :

 
 
 
 

106. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

110. Cycas is different from mango in :

 
 
 
 

111. Ovary is absent in:

 
 
 
 

112. . Tapetum develops in:

 
 
 
 

113. Ectocarpus produces:

 
 
 
 

114. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. Why is Cycas called a living fossil?

 
 
 
 

123. Fern prothallus is:

 
 
 
 

124. Detailed study of bacteriophage was made by:

 
 
 
 

125. Pasteurization of milk involves heating for:

 
 
 
 

126. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

128. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

131. In Cycas microsporangia are borne on:

 
 
 
 

132. 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?

 
 
 
 

133. Cycas is :

 
 
 
 

134. Pseudomycelium is found in:

 
 
 
 

135. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

137. Smut of maize is caused by :

 
 
 
 

138. Bacteriophage consists of:

 
 
 
 

139. Which causes red tide?

 
 
 
 

140. Photosynthetic protists belong to:

 
 
 
 

141. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

145. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

148. Which of the following is true for viruses?

 
 
 
 

149. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

152. Ginkgo biloba is a:

 
 
 
 

153. Saccharomyces is well known for:

 
 
 
 

154. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

156. In moss, reduction division occurs in :

 
 
 
 

157. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

159. The group algae possesses representatives belonging to kingdom:

 
 
 
 

160. Some biologists have used the term Mycetozoa for:

 
 
 
 

161. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

163. Who discovered cyanophages?

 
 
 
 

164. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

166. Mycoplasma contains:

 
 
 
 

167. Streptomyces falls under:

 
 
 
 

168. Ergot is obtained from :

 
 
 
 

169. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

171. Which is a tautonym?

 
 
 
 

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

 
 
 
 

173. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

175. Cycas is similar to a mustard plant :

 
 
 
 

176. Cell walls of Gram-positive bacteria contain:

 
 
 
 

177. Linnaeus is credited with introducing:

 
 
 
 

178. Protozoans are considered animals because these are:

 
 
 
 

179. The fungi used as food are:

 
 
 
 

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

 
 
 
 

181. Citrus canker is caused by:

 
 
 
 

182. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

185. Fruits are not found in:

 
 
 
 

186. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

191. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

194. The megaspore of Selaginella on germination produces:

 
 
 
 

195. The megasporangium of Selaginella is:

 
 
 
 

196. Which of the following is true for Selaginella?

 
 
 
 

197. Rhizoids of Riccia are :

 
 
 
 

198. Facultative parasite is:

 
 
 
 

199. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

201. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

203. Pasteurized milk is:

 
 
 
 

204. Rhizopus belongs to:

 
 
 
 

205. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

207. Chief constituents of bordeaux mixture are :

 
 
 
 

208. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

210. Which of the following have a prokaryotic cell?

 
 
 
 

211. An Hfr bacterium is one that contains:

 
 
 
 

212. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. Which of the following are included in Tracheophyta?

 
 
 
 

217. Botulism is a:

 
 
 
 

218. Bryophyta have been placed in cryptogams because:

 
 
 
 

219. Sexual reproduction of lichen is due to :

 
 
 
 

220. Gymnosperms could also be called as:

 
 
 
 

221. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

222. 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:

 
 
 
 

223. Which of the following is a parasitic algae?

 
 
 
 

224. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

226. Absorptive nutrition is:

 
 
 
 

227. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

230. Economic importance of bacteria lies in their being:

 
 
 
 

231. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. Mucilaginous canals in Cycas are found in :

 
 
 
 

237. Rice, pea, potato are :

 
 
 
 

238. The mode of nutrition of bacteria is usually:

 
 
 
 

239. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

241. Helotism word is used for the symbiosis between :

 
 
 
 

242. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

244. Transfusion tissue is present in the leaflet of:

 
 
 
 

245. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. The fungi are usually:

 
 
 
 

249. Sleeping sickness disease in man is caused by:

 
 
 
 

250. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

252. Synzoospore is produced in:

 
 
 
 

253. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

258. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

260. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

262. Acellular slime mold is/are:

 
 
 
 

263. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

268. Bacteria differ from viruses in being sensitive to:

 
 
 
 

269. All archaebacteria lack:

 
 
 
 

270. The source of litmus is :

 
 
 
 

271. Spermatophyta are characterized by producing:

 
 
 
 

272. Meristele of fern is:

 
 
 
 

273. Bivalved siliceous shell or frustule occur in:

 
 
 
 

274. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

276. What is mycorrhiza?

 
 
 
 

277. What are plasmids?

 
 
 
 

278. Which is not found in bacteria?

 
 
 
 

279. Tautonyms are illegitimate in:

 
 
 
 

280. Bacteriophages have been used as:

 
 
 
 

281. Which is an edible fungus?

 
 
 
 

282. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

284. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

286. Heterospory and ligulate leaves are a feature of:

 
 
 
 

287. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

289. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

291. Typhoid in man is caused by:

 
 
 
 

292. Which of the following lichens is harmful?

 
 
 
 

293. Who discovered heterothallism in fungi?

 
 
 
 

294. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

296. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

298. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

301. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

303. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

305. Diphtheria is caused by:

 
 
 
 

306. Spores of which plants have chloroplast:

 
 
 
 

307. In moss, peristomial teeth are:

 
 
 
 

308. In Gymnosperms endosperm is a:

 
 
 
 

309. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

311. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

314. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

320. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

322. The disease apple scab is caused by:

 
 
 
 

323. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. The fungi that grow on wood are called:

 
 
 
 

327. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

329. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

331. Which is an exception to cell theory?

 
 
 
 

332. Cycas is:

 
 
 
 

333. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

337. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

339. The truncated cone of HIV consists of:

 
 
 
 

340. The antherozoids of Funaria are :

 
 
 
 

341. Metulae are found in:

 
 
 
 

342. Liverworts are included in :

 
 
 
 

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

 
 
 
 

344. In moss, sporophyte is formed on:

 
 
 
 

345. Selaginella differs from Moss in having:

 
 
 
 

346. Late blight of potato is caused by:

 
 
 
 

347. Mycoplasma is different from bacteria due to:

 
 
 
 

348. In Herpes virus DNA is:

 
 
 
 

349. How a fern differs from a moss?

 
 
 
 

350. Funaria are commonly found :

 
 
 
 

351. Bacteria are found everywhere, except:

 
 
 
 

352. The smallest unit of classification is:

 
 
 
 

353. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

355. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

357. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

359. Yeast is a source of:

 
 
 
 

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

 
 
 
 

361. Pinus is:

 
 
 
 

362. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

364. The orders generally have the uniform endings:

 
 
 
 

365. TMV was isolated in crystalline form by:

 
 
 
 

366. The chloroplast in Ulothrix is :

 
 
 
 

367. Citrus canker is caused by :

 
 
 
 

368. Yeast belongs to class:

 
 
 
 

369. Which of the following applies to Selaginella?

 
 
 
 

370. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

372. Rhizophore of Selaginella is:

 
 
 
 

373. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

375. Pollination in Pinus is :

 
 
 
 

376. Viroids have:

 
 
 
 

377. The chromosomal number in:

 
 
 
 

378. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

380. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

382. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

384. The zygospore in Rhizopus on germination forms:

 
 
 
 

385. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

387. Water-net is the name of:

 
 
 
 

388. The phloem of vascular system of Cycas is :

 
 
 
 

389. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

391. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

393. Iodine is obtained from:

 
 
 
 

394. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

397. LSD is:

 
 
 
 

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

 
 
 
 

399. In moss, stomata are found:

 
 
 
 

400. Sometimes the bacterial cell is enclosed in:

 
 
 
 

401. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

403. What are Cyanobacteria?

 
 
 
 

404. Aflatoxin is produced as a product in :

 
 
 
 

405. Most primitive group of vascular plants are:

 
 
 
 

406. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

408. Woody climbers are known as :

 
 
 
 

409. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Virion refers to:

 
 
 
 

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

 
 
 
 

415. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

417. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. Lichens show :

 
 
 
 

421. The chloroplast of Chlamydomonas are:

 
 
 
 

422. 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?

 
 
 
 

423. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

424. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

426. The gametophyte of fern is as:

 
 
 
 

427. Aflatoxin is produced by:

 
 
 
 

428. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

432. 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:

 
 
 
 

433. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

436. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

439. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

450. Saccharomyces ludwigii ascus produces:

 
 
 
 

451. The fern plant is:

 
 
 
 

452. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

456. Spirogyra represents the :

 
 
 
 

457. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

460. Facultative saprophyte is:

 
 
 
 

461. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

464. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

466. In moss, sporogenous tissue arises from:

 
 
 
 

467. Black rust of wheat is caused by:

 
 
 
 

468. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

471. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

472. Some diseases caused by bacteria are:

 
 
 
 

473. Vascular cryptogam is the term used for :

 
 
 
 

474. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

477. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

479. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

481. The sporangia of Selaginella are attached:

 
 
 
 

482. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

486. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

489. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

491. Banana bunchy top is caused by :

 
 
 
 

492. Standard size of a herbarium sheet is:

 
 
 
 

493. The two conjugating gametangia of Rhizopus are:

 
 
 
 

494. The antibiotic is obtained from:

 
 
 
 

495. Siphonogamy is found in:

 
 
 
 

496. Fruits are not found in :

 
 
 
 

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

 
 
 
 

498. Chemosynthetic bacteria are:

 
 
 
 

499. Wine turns sour because of:

 
 
 
 

500. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

503. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

505. Milk is converted to curd by:

 
 
 
 

506. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

510. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

512. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

514. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

516. The leafy fern plant represents the:

 
 
 
 

517. Gametophyte is the main plant body in :

 
 
 
 

518. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

520. Majority of lichens are :

 
 
 
 

521. In dinoflagellates, the two flagella are:

 
 
 
 

522. Desired type of Cycas can be grown by:

 
 
 
 

523. The disease symptom necrosis refers to :

 
 
 
 

524. Special feature of pollen grains of Pinus is :

 
 
 
 

525. Azolla and Salvinia both are:

 
 
 
 

526. Photoautotrophic bacteria have:

 
 
 
 

527. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

533. Cap cells are found in the filament of:

 
 
 
 

534. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

540. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. The most primitive vascular plants is:

 
 
 
 

544. Spirogyra is commonly known by the name of ‘Pond scum’ or ‘Pond silk’ 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. Which of the following causes smut disease in wheat?

 
 
 
 

547. What is the role of nitrifying bacteria?

 
 
 
 

548. Number of capsomeres forming capsid of TMV is:

 
 
 
 

549. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

551. Antibiotics cure the disease by:

 
 
 
 

552. Early blight of potato is caused by:

 
 
 
 

553.

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

 
 
 
 

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

 
 
 
 

556. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

558. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

563. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

565. Streptomycin is obtained from:

 
 
 
 

566. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

569. Sporophyte of fern is:

 
 
 
 

570. Heterospory is the production of:

 
 
 
 

571. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

576. Green plants are classified as:

 
 
 
 

577. Embryophyta includes :

 
 
 
 

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

 
 
 
 

579. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

582. The spermatozoids of Cycas are :

 
 
 
 

583. Which is a gametophytic tissue?

 
 
 
 

584. Bacteria were first discovered by:

 
 
 
 

585. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

587. Quarantine regulations are concerned with:

 
 
 
 

588. Select the wrong statement:

 
 
 
 

589. Lichens form the first community in

 
 
 
 

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

 
 
 
 

591. Lichens are ecologically important because :

 
 
 
 

592. NBG of Lucknow is now named as:

 
 
 
 

593. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

596. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

598. Each chloroplast in Spirogyra bears :

 
 
 
 

599. Generic name of mango is:

 
 
 
 

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

 
 
 
 

601. In tracheophyta:

 
 
 
 

602. Which statement is wrong in regard to bacteria?

 
 
 
 

603. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

605. The first to isolate a plant virus was:

 
 
 
 

606. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

608. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

610. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

612. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

615. 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:

 
 
 
 

616. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

620. Most of the algae are :

 
 
 
 

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

 
 
 
 

622. Parmelia belongs to :

 
 
 
 

623. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

624. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. The vascular bundles of Cycas stem are :

 
 
 
 

628. Longest known virus is:

 
 
 
 

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

 
 
 
 

630. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

632. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

634. John Hutchinson divided dicots into two divisions:

 
 
 
 

635. Lichen show :

 
 
 
 

636. The tree fern is:

 
 
 
 

637. The tallest moss in the world is :

 
 
 
 

638. Cryptogams include :

 
 
 
 

639. Chemosynthetic bacteria are:

 
 
 
 

640. Pollination drop is:

 
 
 
 

641. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. The gametophyte produced by apospory is :

 
 
 
 

645. Interferon is a:

 
 
 
 

646. E coli is a:

 
 
 
 

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

 
 
 
 

648. Photosynthetic bacteria have:

 
 
 
 

649. Funaria is :

 
 
 
 

650. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

653. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

655. The Rhizopus is:

 
 
 
 

656. In Funaria :

 
 
 
 

657. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

659. Cycas revoluta is widely grown as :

 
 
 
 

660. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

662. The young leaves of Cycas have :

 
 
 
 

663. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

667. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

671. Oswald Tippo’s classification is:

 
 
 
 

672. Leaf spot of groundnut is caused by :

 
 
 
 

673. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

678. The archegonia in Selaginella develop on:

 
 
 
 

679. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

681. Saccharomyces is used in:

 
 
 
 

682. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

684. The ferns are usually found:

 
 
 
 

685. The largest alga is:

 
 
 
 

686. Select the wrong statement:

 
 
 
 

687. Which of the following does not contain chlorophyll?

 
 
 
 

688. Polystelic condition is found in:

 
 
 
 

689. The ascus of yeast contains:

 
 
 
 

690. Antibiotic has been extracted from :

 
 
 
 

691. The lambda phase is a:

 
 
 
 

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

 
 
 
 

693. Protists which are diploid reproduce sexually by:

 
 
 
 

694. Halophiles are the bacteria that require for growth:

 
 
 
 

695. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

699. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

701. The chief characteristic of class Ascomycetes is:

 
 
 
 

702. Kuru, a human disease is caused by:

 
 
 
 

703. Which lichen is called Reindeer moss?

 
 
 
 

704. Pinus gerardiana is :

 
 
 
 

705. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

706. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

709. Most common type of conjugation in Spirogyra is :

 
 
 
 

710. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

711. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

713. Which among the following is a shrub?

 
 
 
 

714. All protozoans possess:

 
 
 
 

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

 
 
 
 

716. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

720. Fairy ring is the name given to:

 
 
 
 

721. Nitrogen-fixing bacteria may be located:

 
 
 
 

722. In Cycas which structure is equivalent to stamen?

 
 
 
 

723. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

724. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

728. Amoeba is a member of the phylum:

 
 
 
 

729. Methanogens belong to:

 
 
 
 

730. Embryophyta includes:

 
 
 
 

731. The most important property of yeast is:

 
 
 
 

732. Leprosy is caused by:

 
 
 
 

733. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

736. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

739. Triple antigen injection or vaccine are for:

 
 
 
 

740. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

742. The mycelium of Rhizopus is:

 
 
 
 

743. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

746. The prothallus of fern represents the plant:

 
 
 
 

747. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

751. Climbers are found in genus:

 
 
 
 

752. The rhizoids of Funaria are :

 
 
 
 

753. Who among the following discovered virus?

 
 
 
 

754. Ethylene oxide is widely used to:

 
 
 
 

755. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

758. Bacteria are considered to be plants because they:

 
 
 
 

759. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

761. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

763. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

765. The sporangiophores in Rhizopus are:

 
 
 
 

766. Spirogyra differs from moss protonema in having :

 
 
 
 

767. Botulinum toxin effects:

 
 
 
 

768. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

770. Viruses have:

 
 
 
 

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

 
 
 
 

772. Reproduction in Rhizopus is:

 
 
 
 

773. Vegetative reproduction in Cycas is by means of :

 
 
 
 

774. Seeds are characteristically found in :

 
 
 
 

775. Most primitive embryophytes are placed in:

 
 
 
 

776. Black rust of wheat is caused by:

 
 
 
 

777. 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:

 
 
 
 

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

 
 
 
 

779. In Pteris, the archegonia are present:

 
 
 
 

780.

781. Mycoplasmas are not viruses in nature because:

 
 
 
 

782. Broad spectrum antibiotic is, which:

 
 
 
 

783. Agar-agar is obtained from:

 
 
 
 

784. Who named prion?

 
 
 
 

785. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

787. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

789. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

791. All algae have:

 
 
 
 

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

 
 
 
 

793. Discovery of penicillin was based on:

 
 
 
 

794. The sexual reproductive organs in Rhizopus are:

 
 
 
 

795. Which of the following have algal zone?

 
 
 
 

796. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

798. Red rot of sugarcane is caused by :

 
 
 
 

799. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

802. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

805. What is a vector?

 
 
 
 

806. Plasmids are:

 
 
 
 

807. Clostridium can:

 
 
 
 

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

 
 
 
 

809. 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?

 
 
 
 

810. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

812. Enteric bacteria are those bacteria that live:

 
 
 
 

813. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

816. The genetic material of poxvirus is:

 
 
 
 

817. Roots are absent in :

 
 
 
 

818. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

820. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

823. 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:

 
 
 
 

824. Ovules are not found enclosed in ovary of:

 
 
 
 

825. The smallest bacterium is:

 
 
 
 

826. Mycoplasma are:

 
 
 
 

827. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

830. What is streptomycin?

 
 
 
 

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

 
 
 
 

832. Pteridophyta are also called:

 
 
 
 

833. Protistan algae obtain their food as:

 
 
 
 

834. Fern prothallus produces:

 
 
 
 

835. 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:

 
 
 
 

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

 
 
 
 

837. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

839. Bacteria growing on synthetic medium are called:

 
 
 
 

840. Winged seeds are found in :

 
 
 
 

841. Ovary is absent in :

 
 
 
 

842. In Gymnocarpeae the fruiting body is :

 
 
 
 

843. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

847. Azolla growing in paddy fields helps in:

 
 
 
 

848. Rhizopus and yeast are usually:

 
 
 
 

849. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

851. Which of the following are absent in Mycoplasma?

 
 
 
 

852. Asexual reproductive body of Volvox is called:

 
 
 
 

853. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

857. Which of the following statement is correct?

 
 
 
 

858. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

860. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. Maximum diversity of life forms occurs in :

 
 
 
 

864. Red rot of sugarcane is caused by :