Quiz_Random

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

 
 
 
 

2. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

4. Psilotum is:

 
 
 
 

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

 
 
 
 

6. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

13. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

15. Oswald Tippo’s classification was based on :

 
 
 
 

16. Funaria is :

 
 
 
 

17. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Chemosynthetic bacteria are:

 
 
 
 

22. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

24. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Gametophyte is the main plant body in :

 
 
 
 

28. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

33. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. Pteridophytes are also known as :

 
 
 
 

38. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

40. Most of the algae are :

 
 
 
 

41. The teeth of peristome of Funaria are :

 
 
 
 

42. The word “sea weeds” is used for:

 
 
 
 

43. The Rhizopus is:

 
 
 
 

44. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. The fungi are mostly:

 
 
 
 

48. Which class of Protozoa includes all parasitic forms?

 
 
 
 

49. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

51. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

53. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. The sporangiophores in Rhizopus are:

 
 
 
 

57. Pollination drop is:

 
 
 
 

58. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

60. Lichens reproduce by :

 
 
 
 

61. 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:

 
 
 
 

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

 
 
 
 

63. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. The chief characteristic of class Ascomycetes is:

 
 
 
 

67. Polystelic condition is found in:

 
 
 
 

68. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

70. Which of the following are included in Tracheophyta?

 
 
 
 

71. Ovary is absent in:

 
 
 
 

72. Chief constituents of bordeaux mixture are :

 
 
 
 

73. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

75. Fern prothallus produces:

 
 
 
 

76. Which of the following statements is not correct?

 
 
 
 

77. Which of the following is true for viruses?

 
 
 
 

78. Pasteurized milk is:

 
 
 
 

79. Fern prothallus is:

 
 
 
 

80. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Cocci types of bacteria are:

 
 
 
 

85. Bryophyta have a special character from other plants:

 
 
 
 

86. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

87. Bacteriophage consists of:

 
 
 
 

88. 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?

 
 
 
 

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

 
 
 
 

90. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

92. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

94. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. Which is a gametophytic tissue?

 
 
 
 

99. Cleavage polyembryony is found in :

 
 
 
 

100. 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:

 
 
 
 

101. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

103. Spirogyra differs from moss protonema in having :

 
 
 
 

104. The stele of Dryopteris is a:

 
 
 
 

105. Which of the following have algal zone?

 
 
 
 

106. Pollination in Cycas takes place by :

 
 
 
 

107. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

114. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

116. The orders generally have the uniform endings:

 
 
 
 

117. Ectocarpus produces:

 
 
 
 

118. Facultative saprophyte is:

 
 
 
 

119. In Cycas:

 
 
 
 

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

 
 
 
 

121. Ovules are not found enclosed in ovary in :

 
 
 
 

122. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

125. Penicillin was discovered by:

 
 
 
 

126. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

130. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

132. Proembryo in Pinus is :

 
 
 
 

133. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. In moss, peristomial teeth are:

 
 
 
 

139. Black rust of wheat is caused by:

 
 
 
 

140. The photosynthetic protists are:

 
 
 
 

141. Soil fertility is lost by the activities of:

 
 
 
 

142. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

144. Helotism word is used for the symbiosis between :

 
 
 
 

145. Who named prion?

 
 
 
 

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

 
 
 
 

147. Which is the nuclear material in bacteria?

 
 
 
 

148. Cryptogams include :

 
 
 
 

149. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

150. Spermatophyta are characterized by producing:

 
 
 
 

151. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

154. Enzymes are absent in:

 
 
 
 

155. Sleeping sickness disease in man is caused by:

 
 
 
 

156. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

158. Roots are absent in :

 
 
 
 

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

 
 
 
 

160. Clostridium can:

 
 
 
 

161. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

163. Virus and bacteriophage are made-up of:

 
 
 
 

164. Viruses are commonly transmitted in plants through:

 
 
 
 

165. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

167. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

169. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

171. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

174. Maximum diversity of life forms occurs in :

 
 
 
 

175. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

177. Plasmids are:

 
 
 
 

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

 
 
 
 

179. Red rot of sugarcane is caused by:

 
 
 
 

180. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

181. In Herpes virus DNA is:

 
 
 
 

182. The most important property of yeast is:

 
 
 
 

183. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

185. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

191. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

193. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

195. Most primitive kind of flower is represented by:

 
 
 
 

196. In Gymnocarpeae the fruiting body is :

 
 
 
 

197. Broad spectrum antibiotic is, which:

 
 
 
 

198. Winged seeds are found in :

 
 
 
 

199. Select the wrong statement:

 
 
 
 

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

 
 
 
 

201. Most resistant spore in bacteria is:

 
 
 
 

202. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

204. Pythium debaryanum is the causative agent of:

 
 
 
 

205. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

207. Selaginella differs from Moss in having:

 
 
 
 

208. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

210. Rhizophore of Selaginella is:

 
 
 
 

211. Which is an edible fungus?

 
 
 
 

212. Azolla growing in paddy fields helps in:

 
 
 
 

213. The sporangium of fern contains nearly:

 
 
 
 

214. Which of the following shows heterotrichous habit?

 
 
 
 

215. The rhizoids of Funaria are :

 
 
 
 

216. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

218. What is the role of nitrifying bacteria?

 
 
 
 

219. NBG of Lucknow is now named as:

 
 
 
 

220. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

222. Most primitive embryophytes are placed in :

 
 
 
 

223. Photoautotrophic bacteria have:

 
 
 
 

224. Agar-agar is obtained from:

 
 
 
 

225. The leaves of Funaria are :

 
 
 
 

226. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

229. Sexual reproduction of lichen is due to :

 
 
 
 

230. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

232. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. Saccharomyces is used in:

 
 
 
 

236. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

239. Anoxygenic photosynthesis occurs in:

 
 
 
 

240. Meiosis in Ulothrix takes place:

 
 
 
 

241. 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?

 
 
 
 

242. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

244. In binomial system most of the words are:

 
 
 
 

245. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

247. 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?

 
 
 
 

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

 
 
 
 

249.

250. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

252. Cycas is different from mango in :

 
 
 
 

253. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

255. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

257. Ovary is absent in :

 
 
 
 

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

 
 
 
 

259. Viruses have:

 
 
 
 

260. Genetic material of TMV is:

 
 
 
 

261. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

264. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

266. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

268. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

270. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

274. The lambda phase is a:

 
 
 
 

275. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

277. What is a vector?

 
 
 
 

278. Which organisms are the oldest life forms?

 
 
 
 

279. Bacteriophages have been used as:

 
 
 
 

280. Fern plants are:

 
 
 
 

281. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

283. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

285. Bacteria differ from viruses in being sensitive to:

 
 
 
 

286. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

289. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

290. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

292. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

294. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

297. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

299. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

303. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

305. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

307. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

309. Banana bunchy top is caused by :

 
 
 
 

310.

311. Which of the following is a monocot?

 
 
 
 

312. Rhizopus and yeast are usually:

 
 
 
 

313. Winged pollen grains are found in :

 
 
 
 

314. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

317. The plants of Funaria grow :

 
 
 
 

318. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

320. Halophiles are the bacteria that require for growth:

 
 
 
 

321. Yeast is a source of:

 
 
 
 

322. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. Climbers are found in genus:

 
 
 
 

327. 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?

 
 
 
 

328. Select the wrong statement:

 
 
 
 

329. Ginkgo biloba is a:

 
 
 
 

330. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

332. Protistan algae obtain their food as:

 
 
 
 

333. Pseudomycelium is found in:

 
 
 
 

334. Linnaeus is credited with introducing:

 
 
 
 

335. Virion refers to:

 
 
 
 

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

 
 
 
 

337. The chloroplast in Ulothrix is :

 
 
 
 

338. In Funaria :

 
 
 
 

339. How is moss different from fern?

 
 
 
 

340. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. Germ theory of disease was proposed by:

 
 
 
 

344. Red rot of sugarcane is caused by :

 
 
 
 

345. Zoogametes are not found in:

 
 
 
 

346. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

350. Generic name of mango is:

 
 
 
 

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

 
 
 
 

352. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

354. Most appropriate word for protozoans is:

 
 
 
 

355. All archaebacteria lack:

 
 
 
 

356. First animal pathogenic virus was discovered by:

 
 
 
 

357. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. In moss, sporogenous tissue arises from:

 
 
 
 

362. Heterocysts are found in :

 
 
 
 

363. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

366. The most primitive vascular plants is:

 
 
 
 

367. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

370. Chemosynthetic bacteria are:

 
 
 
 

371. Red rot of sugarcane is caused by :

 
 
 
 

372. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

375. Embryophyta includes :

 
 
 
 

376. John Hutchinson divided dicots into two divisions:

 
 
 
 

377. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380. Penicillin is obtained from:

 
 
 
 

381. In Selaginella, the microsporangia are:

 
 
 
 

382. Pinus is:

 
 
 
 

383. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

385. The leafy fern plant represents the:

 
 
 
 

386. Etiology includes the study of :

 
 
 
 

387. Early blight of potato is caused by:

 
 
 
 

388. Which causes red tide?

 
 
 
 

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

 
 
 
 

390. Milk is converted to curd by:

 
 
 
 

391. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

397.

 

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

 
 
 
 

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

 
 
 
 

400. Mycoplasma are:

 
 
 
 

401. Bacteria are considered to be plants because they:

 
 
 
 

402. Pinus microsporophyll bears:

 
 
 
 

403. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

405. Typhoid in man is caused by:

 
 
 
 

406. Interferon is a:

 
 
 
 

407. The upper region of moss capsule is :

 
 
 
 

408. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

411. Transfusion tissue is present in the leaflet of:

 
 
 
 

412. Yeast belongs to class:

 
 
 
 

413. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

415. Cycas plant in appearance resembles :

 
 
 
 

416. Pasteurization of milk involves heating for:

 
 
 
 

417. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

419. Viroids have:

 
 
 
 

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

 
 
 
 

421. Which of the following statement is correct?

 
 
 
 

422. Which of the following does not contain chlorophyll?

 
 
 
 

423. The chief characteristic of bryophyta is that :

 
 
 
 

424. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

426. Metulae are found in:

 
 
 
 

427. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. The fungi are usually:

 
 
 
 

438. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

442. Disease resistant plant varieties can be produced by :

 
 
 
 

443. Which is a redwood tree?

 
 
 
 

444. Embryophyta includes:

 
 
 
 

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

 
 
 
 

446. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

447. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

449. Triple antigen injection or vaccine are for:

 
 
 
 

450. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

452. Spores of which plants have chloroplast:

 
 
 
 

453. 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:

 
 
 
 

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

 
 
 
 

455. Lichens form the first community in

 
 
 
 

456. The chloroplast of Chlamydomonas are:

 
 
 
 

457. Woody climbers are known as :

 
 
 
 

458. Meristele of fern is:

 
 
 
 

459. All protozoans possess:

 
 
 
 

460. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

463. True sexuality is not found in:

 
 
 
 

464. An alga which is rich in proteins:

 
 
 
 

465. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

467. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

471. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

473. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

476. Male gametophyte of Selaginella is found:

 
 
 
 

477. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

479. Diphtheria is caused by:

 
 
 
 

480. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

491. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

495. Bivalved siliceous shell or frustule occur in:

 
 
 
 

496. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

498. The leaf of Cycas shows:

 
 
 
 

499. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

503. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

505. Special feature of pollen grains of Pinus is :

 
 
 
 

506. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

508. Vascular tissue is found in :

 
 
 
 

509. Streptomyces falls under:

 
 
 
 

510. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

512. Common phycobiont in a lichen is :

 
 
 
 

513. Most of the lichens are composed of :

 
 
 
 

514. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

517. Circular DNA is seen in:

 
 
 
 

518. The truncated cone of HIV consists of:

 
 
 
 

519. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

521. Some bacteria cannot be killed easily because of:

 
 
 
 

522. Antibiotics cure the disease by:

 
 
 
 

523. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

524. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

527. Redness of red sea is due to :

 
 
 
 

528. Saccharomyces ludwigii ascus produces:

 
 
 
 

529. Heterosporous pteridophytes always form:

 
 
 
 

530. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

532. Absorptive nutrition is:

 
 
 
 

533. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. The megaspore of Selaginella on germination produces:

 
 
 
 

537. Bentham and Hooker placed gymnosperms:

 
 
 
 

538. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

539. Rhizopus belongs to:

 
 
 
 

540. The mode of nutrition of bacteria is usually:

 
 
 
 

541. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

543. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

545. 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:

 
 
 
 

546. The phloem of vascular system of Cycas is :

 
 
 
 

547. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

549. The similarity between cyanobacteria and bacteria:

 
 
 
 

550. Which of the following are included in Tracheophyta?

 
 
 
 

551. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

554. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

556. Pythium debaryanum is the causative agent of:

 
 
 
 

557. Isomorphic type alternation of generation is found in:

 
 
 
 

558. Placenta in fern is:

 
 
 
 

559. 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:

 
 
 
 

560. In a diplontic life cycle:

 
 
 
 

561. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

563. The roots of Cycas are :

 
 
 
 

564. Water-net is the name of:

 
 
 
 

565. The source of litmus is :

 
 
 
 

566. The genetic material of poxvirus is:

 
 
 
 

567. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

570. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

572. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

574. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

577. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

579. Ethylene oxide is widely used to:

 
 
 
 

580. Who discovered cyanophages?

 
 
 
 

581. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

586. In angiosperms double fertilization represents:

 
 
 
 

587. Cycas is :

 
 
 
 

588. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

589. Economic importance of bacteria lies in their being:

 
 
 
 

590. Late blight of potato is caused by:

 
 
 
 

591. Gram stain is used to:

 
 
 
 

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

 
 
 
 

593. The megasporangium of Selaginella is:

 
 
 
 

594. White rust of crucifers is caused by:

 
 
 
 

595. Which is not found in bacteria?

 
 
 
 

596. Heterospory is the production of:

 
 
 
 

597. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

599. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

600. Tautonyms are illegitimate in:

 
 
 
 

601. All algae have:

 
 
 
 

602. The order generally ends with:

 
 
 
 

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

 
 
 
 

604. The spermatozoids of Cycas are :

 
 
 
 

605. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

607. Protozoans are considered animals because these are:

 
 
 
 

608. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

611. Usually, bacteria reproduce by:

 
 
 
 

612. Liverworts are included in :

 
 
 
 

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

 
 
 
 

614. The zoospores of Ulothrix are :

 
 
 
 

615. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

617. Ergot of rye is caused by:

 
 
 
 

618. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

620. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

622. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

623. The sori in Dryopteris are found on:

 
 
 
 

624. 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:

 
 
 
 

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

 
 
 
 

626. Bryophyta have been placed in cryptogams because:

 
 
 
 

627. The sporangia of Selaginella are attached:

 
 
 
 

628. The sporophyte of Riccia is represented by :

 
 
 
 

629. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

633. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. The flagella of Chlamydomonas are:

 
 
 
 

637. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

640. Which is a fungicide?

 
 
 
 

641. Each chloroplast in Spirogyra bears :

 
 
 
 

642. What are plasmids?

 
 
 
 

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

 
 
 
 

644. Desired type of Cycas can be grown by:

 
 
 
 

645. The zygospore in Rhizopus on germination forms:

 
 
 
 

646. Total parasites belong to:

 
 
 
 

647. The fungi used as food are:

 
 
 
 

648. 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:

 
 
 
 

649. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

656. The development of sporangium in Selaginella is:

 
 
 
 

657. The first to isolate a plant virus was:

 
 
 
 

658. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

660. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

662. The DNA of E coli is:

 
 
 
 

663. Lichens are ecologically important because :

 
 
 
 

664. Which one of the following is a monocot?

 
 
 
 

665. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

668. The tree fern is:

 
 
 
 

669. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

671. Bacteria are placed under:

 
 
 
 

672. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

674. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

676. Vegetative reproduction in Cycas is by means of :

 
 
 
 

677. Detailed study of bacteriophage was made by:

 
 
 
 

678. Which of the following have a prokaryotic cell?

 
 
 
 

679. The coralloid roots are :

 
 
 
 

680. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

683. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

685. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

687. Nitrifying bacteria play an important role by converting:

 
 
 
 

688. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

691. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

694. Fairy ring is the name given to:

 
 
 
 

695. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

701. The archegonia of Selaginella are differentiated by:

 
 
 
 

702. Which among the following is a shrub?

 
 
 
 

703. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

709. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

712. Heterotrichous habit means :

 
 
 
 

713.

714. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

715. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

717. The sexual reproductive organs in Rhizopus are:

 
 
 
 

718. Fruits are not found in :

 
 
 
 

719. Amoeba is a member of the phylum:

 
 
 
 

720. Why is Cycas called a living fossil?

 
 
 
 

721. Choose the correct statement about Spirogyra:

 
 
 
 

722. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

727. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

730. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

732. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

734. Cap cells are found in the filament of:

 
 
 
 

735. Which of the following is sago palm?

 
 
 
 

736. Black rust of wheat is caused by:

 
 
 
 

737. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

739. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

741. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

744. Cycas revoluta is widely grown as :

 
 
 
 

745. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

746. Methanogens belong to:

 
 
 
 

747. Cyathia is characterized by:

 
 
 
 

748. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. Fern phloem lacks:

 
 
 
 

753. A gill of Agaricus:

 
 
 
 

754. The spur of Pinus roxburghii has :

 
 
 
 

755. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

757. Coenogamete is found in:

 
 
 
 

758. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

760. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

763. In tracheophyta:

 
 
 
 

764. Infective part of virus was discovered by:

 
 
 
 

765. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. One of the distinctive feature of Spirogyra is :

 
 
 
 

770. Wine turns sour because of:

 
 
 
 

771. The smallest bacterium is:

 
 
 
 

772. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

774. Photosynthetic protists belong to:

 
 
 
 

775. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

777. The role of meiosis is for:

 
 
 
 

778. The male gametes of Pinus are :

 
 
 
 

779. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

780. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

781. Nannandria are:

 
 
 
 

782. Fruits are not found in:

 
 
 
 

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

 
 
 
 

784. Lichen show :

 
 
 
 

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

 
 
 
 

786. Sexual reproduction in Rhizopus is by:

 
 
 
 

787. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

791. Iodine is obtained from :

 
 
 
 

792. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

794. Majority of lichens are :

 
 
 
 

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

 
 
 
 

796. Late blight of potato is caused by :

 
 
 
 

797. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

799. Pteridophyta are also called:

 
 
 
 

800. What is mycorrhiza?

 
 
 
 

801. Mycoplasma was discovered by:

 
 
 
 

802. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

804. Club moss and Peat moss belong to:

 
 
 
 

805. The antherozoids of Funaria are :

 
 
 
 

806. Ovules are not found enclosed in ovary in :

 
 
 
 

807. Fruiting body of lichens is :

 
 
 
 

808. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

810. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

812. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. Lichens are indicators of :

 
 
 
 

816. Bacteria are found everywhere, except:

 
 
 
 

817. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

819. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

824. Select the correct statement: (NEET 2016)

 
 
 
 

825. The gametophyte of moss has distinct phases :

 
 
 
 

826. Mostly type of zygospore in Ulothrix is:

 
 
 
 

827. Saccharomyces is well known for:

 
 
 
 

828. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

830. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

832. The tallest moss in the world is :

 
 
 
 

833. The antibiotic is obtained from:

 
 
 
 

834. Smut of maize is caused by :

 
 
 
 

835. Yeast grows more rapidly in:

 
 
 
 

836. LSD is:

 
 
 
 

837. Which of the following lichens is harmful?

 
 
 
 

838. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

839. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

840. Mucilaginous canals in Cycas are found in :

 
 
 
 

841. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

843. Bacteria were first discovered by:

 
 
 
 

844. How a fern differs from a moss?

 
 
 
 

845. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

849. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

852. TMV was isolated in crystalline form by:

 
 
 
 

853. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

857. Funaria is :

 
 
 
 

858. Cycas is:

 
 
 
 

859. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

864. Cycas is similar to a mustard plant :