Quiz_Random

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

 
 
 
 

2. Vascular tissue is found in :

 
 
 
 

3. Virion refers to:

 
 
 
 

4. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

10. Which of the following applies to Selaginella?

 
 
 
 

11. Cycas revoluta is widely grown as :

 
 
 
 

12. Lichens form the first community in

 
 
 
 

13. The leaves of Funaria are :

 
 
 
 

14. White rust of crucifers is caused by:

 
 
 
 

15. What is the role of nitrifying bacteria?

 
 
 
 

16. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

18. Who named prion?

 
 
 
 

19. Rhizopus and yeast are usually:

 
 
 
 

20. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

22. The megaspore of Selaginella on germination produces:

 
 
 
 

23. The roots of Cycas are :

 
 
 
 

24. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. Which of the following are absent in Mycoplasma?

 
 
 
 

42. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. The vascular bundles of Cycas stem are :

 
 
 
 

46. Bacteriophage consists of:

 
 
 
 

47. Leprosy is caused by:

 
 
 
 

48. Disease resistant plant varieties can be produced by :

 
 
 
 

49. Spirogyra represents the :

 
 
 
 

50. Multicellular and jacketed sex organs are found in :

 
 
 
 

51. Sporophyte of fern is:

 
 
 
 

52. The coralloid roots are :

 
 
 
 

53. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Most primitive embryophytes are placed in:

 
 
 
 

57. Which of the following is sago palm?

 
 
 
 

58. Standard size of a herbarium sheet is:

 
 
 
 

59. Green plants are classified as :

 
 
 
 

60. Clostridium can:

 
 
 
 

61. Fertility of the soil is increased by:

 
 
 
 

62. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

72. The spermatozoids of Cycas are :

 
 
 
 

73. In Cycas microsporangia are borne on:

 
 
 
 

74. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

84. Sleeping sickness disease in man is caused by:

 
 
 
 

85. The young leaves of Cycas have :

 
 
 
 

86. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

88. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Early blight of potato is caused by:

 
 
 
 

92. The microsporophylls on the cone of Cycas are :

 
 
 
 

93.

94. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

96. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

98. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

100. Oswald Tippo’s classification is:

 
 
 
 

101. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

103. In dinoflagellates, the two flagella are:

 
 
 
 

104. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

105. Lichens reproduce by :

 
 
 
 

106. Which of the following is true for Selaginella?

 
 
 
 

107. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

109. The two conjugating gametangia of Rhizopus are:

 
 
 
 

110. 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:

 
 
 
 

111. Club moss is the common name of :

 
 
 
 

112. Most appropriate word for protozoans is:

 
 
 
 

113. Photosynthetic bacteria have:

 
 
 
 

114. How is moss different from fern?

 
 
 
 

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

 
 
 
 

116. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. The truncated cone of HIV consists of:

 
 
 
 

120. Mostly type of zygospore in Ulothrix is:

 
 
 
 

121. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

123. Which fixes atmospheric nitrogen?

 
 
 
 

124. 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:

 
 
 
 

125. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

127. Which among the following is a shrub?

 
 
 
 

128. Synzoospore is produced in:

 
 
 
 

129. Smut of maize is caused by :

 
 
 
 

130. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

132. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

133. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

136. Water-borne bacterial diseases are:

 
 
 
 

137. The lambda phase is a:

 
 
 
 

138. Which of the following have a prokaryotic cell?

 
 
 
 

139. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

143. The antherozoids of Funaria are :

 
 
 
 

144. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

146. Spirogyra differs from moss protonema in having :

 
 
 
 

147. Iodine is obtained from :

 
 
 
 

148. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

152. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

153. Which condition is found in Cycas?

 
 
 
 

154. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

156. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

158. Why is Cycas called a living fossil?

 
 
 
 

159. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

161. Banana bunchy top is caused by :

 
 
 
 

162. Viruses have:

 
 
 
 

163. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168.

 

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

 
 
 
 

170. Usually, bacteria reproduce by:

 
 
 
 

171. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

173. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

176. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

178. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

181. Triple antigen injection or vaccine are for:

 
 
 
 

182. All protozoans possess:

 
 
 
 

183. Sexual reproduction of lichen is due to :

 
 
 
 

184. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

187. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

190. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

192. Vegetative reproduction in Cycas is by means of :

 
 
 
 

193. Antibiotic has been extracted from :

 
 
 
 

194. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

196. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

198. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

201. Cyathia is characterized by:

 
 
 
 

202. The prothallus of fern is:

 
 
 
 

203. Which is an exception to cell theory?

 
 
 
 

204. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

207. Enteric bacteria are those bacteria that live:

 
 
 
 

208. The term stele was given by:

 
 
 
 

209. True sexuality is not found in:

 
 
 
 

210. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

215. Which is absent from the xylem of Cycas?

 
 
 
 

216. Which of the following does not contain chlorophyll?

 
 
 
 

217. Tautonyms are illegitimate in:

 
 
 
 

218. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

222. To which country Antony van Leeuwenhoek belong?

 
 
 
 

223. Diphtheria is caused by:

 
 
 
 

224. Ovary is absent in:

 
 
 
 

225. The fern plant is:

 
 
 
 

226. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

228. Water bloom is generally caused by :

 
 
 
 

229. Penicillin was discovered by:

 
 
 
 

230. Most resistant spore in bacteria is:

 
 
 
 

231. Isomorphic type alternation of generation is found in:

 
 
 
 

232. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

233. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

234. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

236. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

238. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

240. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

242. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

243. Fruiting body of lichens is :

 
 
 
 

244. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

246. Pollination drop is:

 
 
 
 

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

 
 
 
 

248. Some biologists have used the term Mycetozoa for:

 
 
 
 

249. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

253. 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?

 
 
 
 

254. The plants of Funaria grow :

 
 
 
 

255. The fungi are usually:

 
 
 
 

256. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

259. Facultative parasite is:

 
 
 
 

260. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

262. An Hfr bacterium is one that contains:

 
 
 
 

263. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

268. The sporangia of Selaginella are attached:

 
 
 
 

269. Funaria is :

 
 
 
 

270. Chemosynthetic bacteria are:

 
 
 
 

271. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

273. In Selaginella, the microsporangia are:

 
 
 
 

274. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

277. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

279. Pteridophyta are also called:

 
 
 
 

280. Soil fertility is lost by the activities of:

 
 
 
 

281. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. The chief characteristic of class Ascomycetes is:

 
 
 
 

285. Mycoplasma is different from bacteria due to:

 
 
 
 

286. Lichens are the indicator of pollution :

 
 
 
 

287. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

290. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

293. Which is a fungicide?

 
 
 
 

294. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

296. The smallest unit of classification is:

 
 
 
 

297. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

298. The source of litmus is :

 
 
 
 

299. Ergot of rye is caused by:

 
 
 
 

300. Pneumonia is caused by:

 
 
 
 

301. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

305. Longest known virus is:

 
 
 
 

306. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

308. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

310. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

312. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

314. Metulae are found in:

 
 
 
 

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

 
 
 
 

316. Late blight of potato is caused by :

 
 
 
 

317. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

320. Select the correct statement: (NEET 2016)

 
 
 
 

321. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

324. Fern phloem lacks:

 
 
 
 

325. Bryophyta have a special character from other plants:

 
 
 
 

326. The sporangiophores in Rhizopus are:

 
 
 
 

327. 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:

 
 
 
 

328. Facultative saprophyte is:

 
 
 
 

329. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

333. Broad spectrum antibiotic is, which:

 
 
 
 

334. E coli is a:

 
 
 
 

335. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

338. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

340. Green plants are classified as:

 
 
 
 

341. In Cycas which structure is equivalent to stamen?

 
 
 
 

342. The gametophyte of moss has distinct phases :

 
 
 
 

343. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

346. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

348. Redness of red sea is due to :

 
 
 
 

349. Coenogamete is found in:

 
 
 
 

350. Halophiles are the bacteria that require for growth:

 
 
 
 

351. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

352. Bacteria are placed under:

 
 
 
 

353. A gill of Agaricus:

 
 
 
 

354. Pinus is:

 
 
 
 

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

 
 
 
 

356. Funaria are commonly found :

 
 
 
 

357. Linnaeus is credited with introducing:

 
 
 
 

358. Transfusion tissue is present in the leaflet of:

 
 
 
 

359. The prothallus of fern represents the plant:

 
 
 
 

360. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

367. In moss, sporophyte is formed on:

 
 
 
 

368. The ascus of yeast contains:

 
 
 
 

369. Nannandria are:

 
 
 
 

370. The group algae possesses representatives belonging to kingdom:

 
 
 
 

371. Who discovered cyanophages?

 
 
 
 

372. The orders generally have the uniform endings:

 
 
 
 

373. The largest known bacterium is:

 
 
 
 

374. The antibiotic is obtained from:

 
 
 
 

375. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

377. Which part of Riccia bears nurse cells?

 
 
 
 

378. Aflatoxin is produced by:

 
 
 
 

379. The Rhizopus is:

 
 
 
 

380. Black rust of wheat is caused by:

 
 
 
 

381. Cyanophage is a virus that attacks:

 
 
 
 

382. Lichens are pioneers of vegetation in a :

 
 
 
 

383. Ergot is obtained from :

 
 
 
 

384. Which of the following is a heterosporous pteridophyte?

 
 
 
 

385. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

388. Which of the following are included in Tracheophyta?

 
 
 
 

389. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

391. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

393. Saccharomyces is used in:

 
 
 
 

394. The rhizoids of Funaria are :

 
 
 
 

395. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

397. Downy mildew disease is caused by :

 
 
 
 

398. In binomial system most of the words are:

 
 
 
 

399. Cycas is :

 
 
 
 

400. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

402. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

405. Pasteur is famous for his:

 
 
 
 

406. Cycas is similar to a mustard plant :

 
 
 
 

407. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

410. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Bacteria are found everywhere, except:

 
 
 
 

414. Bacteria which are spherical are called:

 
 
 
 

415. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

417. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

419. Climbers are found in genus:

 
 
 
 

420. The mycelium of Rhizopus is:

 
 
 
 

421. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Circular DNA is seen in:

 
 
 
 

425. First animal pathogenic virus was discovered by:

 
 
 
 

426. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

427. Proembryo in Pinus is :

 
 
 
 

428. 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?

 
 
 
 

429. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

440. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

442. Streptomycin is obtained from:

 
 
 
 

443. The gametophyte of fern bears:

 
 
 
 

444. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. Most of the algae are :

 
 
 
 

450. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

452. The development of sporangium in Selaginella is:

 
 
 
 

453. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

454. Anoxygenic photosynthesis occurs in:

 
 
 
 

455. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

458. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

461. Spores of which plants have chloroplast:

 
 
 
 

462. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

467. Who discovered heterothallism in fungi?

 
 
 
 

468. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

470. Which lichen is called Reindeer moss?

 
 
 
 

471. Pseudomycelium is found in:

 
 
 
 

472. Absorptive nutrition is:

 
 
 
 

473. The DNA of E coli is:

 
 
 
 

474. Heterotrichous habit means :

 
 
 
 

475. Desired type of Cycas can be grown by:

 
 
 
 

476. The smallest bacterium is:

 
 
 
 

477. Spermatophyta are characterized by producing:

 
 
 
 

478. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

480. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

484. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

487. Ovules are not found enclosed in ovary of:

 
 
 
 

488. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

490. In a diplontic life cycle:

 
 
 
 

491. Mycoplasmas are not viruses in nature because:

 
 
 
 

492. Chemosynthetic bacteria are:

 
 
 
 

493. Viroids have:

 
 
 
 

494. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

496. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

498. The chloroplast of Chlamydomonas are:

 
 
 
 

499. Water-net is the name of:

 
 
 
 

500. Mycoplasma contains:

 
 
 
 

501. The most primitive vascular plants is:

 
 
 
 

502. Oswald Tippo’s classification was based on :

 
 
 
 

503. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Indusium in Dryopteris is:

 
 
 
 

507. Among the algae kelps are :

 
 
 
 

508. Bacteria growing on synthetic medium are called:

 
 
 
 

509. Number of capsomeres forming capsid of TMV is:

 
 
 
 

510. . Tapetum develops in:

 
 
 
 

511. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

513. Viruses are considered to be:

 
 
 
 

514. Mycoplasma are sensitive to:

 
 
 
 

515. What is absent in Deuteromycetes?

 
 
 
 

516. Cycas is:

 
 
 
 

517. Fern plants are:

 
 
 
 

518. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

520. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

524. Citrus canker is caused by:

 
 
 
 

525. All algae have:

 
 
 
 

526. Lichen show :

 
 
 
 

527. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

529. Detailed study of bacteriophage was made by:

 
 
 
 

530. Which is a gametophytic tissue?

 
 
 
 

531. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

535. Ovules are not found enclosed in ovary in :

 
 
 
 

536. Small epidermal swellings due to infection are called :

 
 
 
 

537. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

539. Placenta in fern is:

 
 
 
 

540. Club moss and Peat moss belong to:

 
 
 
 

541. Pinus gerardiana is :

 
 
 
 

542. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

546. In Funaria, calyptra is derived from :

 
 
 
 

547. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

549. Pasteurization of milk involves heating for:

 
 
 
 

550. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

555. Viruses are commonly transmitted in plants through:

 
 
 
 

556. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

558. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

559. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

561. Saccharomyces is well known for:

 
 
 
 

562. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

566. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

569. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

570. Selaginella differs from Moss in having:

 
 
 
 

571. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

573. In Funaria :

 
 
 
 

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

 
 
 
 

575. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

579. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

581. The lichens growing on rocks are called :

 
 
 
 

582. LSD is:

 
 
 
 

583. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

585. In Gymnocarpeae the fruiting body is :

 
 
 
 

586. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

589. 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?

 
 
 
 

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

 
 
 
 

591. In moss, peristomial teeth are:

 
 
 
 

592. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

595. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

597. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

599. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

604. The sporangium of fern contains nearly:

 
 
 
 

605. Some diseases caused by bacteria are:

 
 
 
 

606. The teeth of peristome of Funaria are :

 
 
 
 

607. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. Mycoplasma are:

 
 
 
 

611. The zygospore in Rhizopus on germination forms:

 
 
 
 

612. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

617. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

620. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

622. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

624. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

626. Leaf spot of groundnut is caused by :

 
 
 
 

627. The chloroplast in Ulothrix is :

 
 
 
 

628. The genetic material of poxvirus is:

 
 
 
 

629. In Pteris, the roots are:

 
 
 
 

630. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

633. The fungi are mostly:

 
 
 
 

634. An alga which is rich in proteins:

 
 
 
 

635. Red rot of sugarcane is caused by :

 
 
 
 

636. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

638. The male gametes of Pinus are :

 
 
 
 

639. Plasmids are:

 
 
 
 

640. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. Which is not true for Escherichia coli?

 
 
 
 

644. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

645. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

647. Pteridophytes are also known as :

 
 
 
 

648. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

650. Who discovered streptomycin?

 
 
 
 

651. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

653. The nucleus of bacteria is:

 
 
 
 

654. Fruits are not found in Cycas because:

 
 
 
 

655. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

657. Acellular slime mold is/are:

 
 
 
 

658. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

660. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

662. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

668. Which statement is wrong in regard to bacteria?

 
 
 
 

669. Bacteria are considered to be plants because they:

 
 
 
 

670. The archegonia of Selaginella are differentiated by:

 
 
 
 

671. Etiology includes the study of :

 
 
 
 

672.

673. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

675. Citrus canker is caused by :

 
 
 
 

676. Most primitive embryophytes are placed in :

 
 
 
 

677. Yeast grows more rapidly in:

 
 
 
 

678. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

681. Pollination in Cycas takes place by :

 
 
 
 

682. Rhizophore of Selaginella is:

 
 
 
 

683. Mixed cropping helps :

 
 
 
 

684. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

686. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

690. Select the wrong statement:

 
 
 
 

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

 
 
 
 

692. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

694. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

697. The sporophyte of Riccia is :

 
 
 
 

698. Asexual reproductive body of Volvox is called:

 
 
 
 

699. Aflatoxin is produced as a product in :

 
 
 
 

700. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

703. In Herpes virus DNA is:

 
 
 
 

704. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

706. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

709. The most important property of yeast is:

 
 
 
 

710. The chief characteristic of bryophyta is that :

 
 
 
 

711. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

716. Cellular slime mold is:

 
 
 
 

717. 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?

 
 
 
 

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

 
 
 
 

719. Generic name of mango is:

 
 
 
 

720. Total parasites belong to:

 
 
 
 

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

 
 
 
 

722. Funaria is :

 
 
 
 

723. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

725. The chromosomal number in:

 
 
 
 

726. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

731. Nitrifying bacteria play an important role by converting:

 
 
 
 

732. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

736. What is streptomycin?

 
 
 
 

737. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

739. Maximum diversity of life forms occurs in :

 
 
 
 

740. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

742. Vascular cryptogams is the term used for:

 
 
 
 

743. Some bacteria cannot be killed easily because of:

 
 
 
 

744. The fungi used as food are:

 
 
 
 

745. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

747. What is a vector?

 
 
 
 

748. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

749. Most primitive group of vascular plants are:

 
 
 
 

750. Which of the following is true for viruses?

 
 
 
 

751. The tallest moss in the world is :

 
 
 
 

752. Majority of lichens are :

 
 
 
 

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

 
 
 
 

754. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

758. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

760. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

766. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

768. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

773. The tree fern is:

 
 
 
 

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

 
 
 
 

775. Psilotum is:

 
 
 
 

776. Which class of Protozoa includes all parasitic forms?

 
 
 
 

777. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

780. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

782. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

785. What are plasmids?

 
 
 
 

786. Select the wrong statement:

 
 
 
 

787. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

799. Enzymes are absent in:

 
 
 
 

800. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

805.

806. Cleavage polyembryony is found in :

 
 
 
 

807. Discovery of penicillin was based on:

 
 
 
 

808. Which is not found in bacteria?

 
 
 
 

809. Penicillin is obtained from:

 
 
 
 

810. John Hutchinson divided dicots into two divisions:

 
 
 
 

811. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

813. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

815. Fern prothallus is:

 
 
 
 

816. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

818. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

820. Saccharomyces ludwigii ascus produces:

 
 
 
 

821. In moss, stomata are found:

 
 
 
 

822. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

824. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

827. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

831. Ulothrix produces :

 
 
 
 

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

 
 
 
 

833. Red rot of sugarcane is caused by:

 
 
 
 

834. In a bacteriophage, DNA is present in:

 
 
 
 

835. Which of the following is a monocot?

 
 
 
 

836. Pollination in Pinus is :

 
 
 
 

837. Methanogens belong to:

 
 
 
 

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

 
 
 
 

839. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

842. Infective part of virus was discovered by:

 
 
 
 

843. In tracheophyta:

 
 
 
 

844. The alga, Spirogyra are found in :

 
 
 
 

845. Vascular cryptogam is the term used for :

 
 
 
 

846. Roots are absent in :

 
 
 
 

847. The first to isolate a plant virus was:

 
 
 
 

848. The ferns are usually found:

 
 
 
 

849. Photoautotrophic bacteria have:

 
 
 
 

850. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

851. Fruits are not found in :

 
 
 
 

852. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

854. Embryophyta includes :

 
 
 
 

855. 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:

 
 
 
 

856. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

858. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

860. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

862. The gametophyte of fern is as:

 
 
 
 

863. Which of the following statements is not correct?

 
 
 
 

864. In moss, reduction division occurs in :