Quiz_Random

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

 
 
 
 

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

 
 
 
 

3. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

5. Broad spectrum antibiotic is, which:

 
 
 
 

6. Pasteur is famous for his:

 
 
 
 

7. Ginkgo biloba is a:

 
 
 
 

8. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

10. The similarity between cyanobacteria and bacteria:

 
 
 
 

11. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

17. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

19. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

20. Maximum diversity of life forms occurs in :

 
 
 
 

21. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

26. Siphonogamy is found in:

 
 
 
 

27. Centric discoid form of diatom is:

 
 
 
 

28. Wine turns sour because of:

 
 
 
 

29. The largest alga is:

 
 
 
 

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

 
 
 
 

31. Diphtheria is caused by:

 
 
 
 

32. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

43. Funaria is :

 
 
 
 

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

 
 
 
 

45. Photoautotrophic bacteria have:

 
 
 
 

46. The tallest moss in the world is :

 
 
 
 

47. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

49. The genetic material of poxvirus is:

 
 
 
 

50. Rhizoids of Riccia are :

 
 
 
 

51. What are plasmids?

 
 
 
 

52. Sporophyte of Funaria is :

 
 
 
 

53. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

54. 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:

 
 
 
 

55. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

57. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

59. White rust of crucifers is caused by:

 
 
 
 

60. The mycelium of Rhizopus is:

 
 
 
 

61. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

63. One of the distinctive feature of Spirogyra is :

 
 
 
 

64. The most important property of yeast is:

 
 
 
 

65. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. The disease apple scab is caused by:

 
 
 
 

70. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

72. The tree fern is:

 
 
 
 

73. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

81. Zoogametes are not found in:

 
 
 
 

82. All protozoans possess:

 
 
 
 

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

 
 
 
 

84. Metulae are found in:

 
 
 
 

85. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

87. Which of the following shows heterotrichous habit?

 
 
 
 

88. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

97. Chief constituents of bordeaux mixture are :

 
 
 
 

98. Fairy ring is the name given to:

 
 
 
 

99. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

101. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

106. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

109. Asexual reproductive body of Volvox is called:

 
 
 
 

110. Longest known virus is:

 
 
 
 

111. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

114. Late blight of potato is caused by:

 
 
 
 

115. Black rust of wheat is caused by:

 
 
 
 

116. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

118. LSD is:

 
 
 
 

119. Ovules are not found enclosed in ovary of:

 
 
 
 

120. Pneumonia is caused by:

 
 
 
 

121. Amoeba is a member of the phylum:

 
 
 
 

122. Spirogyra differs from moss protonema in having :

 
 
 
 

123. Select the wrong statement:

 
 
 
 

124. Nannandria are:

 
 
 
 

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

 
 
 
 

126. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

128. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

131. Acellular slime mold is/are:

 
 
 
 

132. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

134. Lichens are pioneers of vegetation in a :

 
 
 
 

135. Transfusion tissue is present in the leaflet of:

 
 
 
 

136.

137. Cellular slime mold is:

 
 
 
 

138. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

142. Bacteria are found everywhere, except:

 
 
 
 

143.

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

 
 
 
 

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

 
 
 
 

146. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

153.

 

154. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

158. The fungi are usually:

 
 
 
 

159. In moss, sporophyte is formed on:

 
 
 
 

160. Circular DNA is seen in:

 
 
 
 

161. The first to isolate a plant virus was:

 
 
 
 

162. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

166. The chromosomal number in:

 
 
 
 

167. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

170. Heterosporous pteridophytes always form:

 
 
 
 

171. Heterospory and ligulate leaves are a feature of:

 
 
 
 

172. Bacteria growing on synthetic medium are called:

 
 
 
 

173. Cell walls of Gram-positive bacteria contain:

 
 
 
 

174. Ulothrix produces :

 
 
 
 

175. In Pteris, the archegonia are present:

 
 
 
 

176. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

180. Fruits are not found in:

 
 
 
 

181. The phloem of vascular system of Cycas is :

 
 
 
 

182. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

185. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Yeast grows more rapidly in:

 
 
 
 

190. Facultative saprophyte is:

 
 
 
 

191. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

193. Lichens are ecologically important because :

 
 
 
 

194. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

196. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

197. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

199. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

202. 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:

 
 
 
 

203. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

205. Majority of lichens are :

 
 
 
 

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

 
 
 
 

207. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

218. Yeast is a source of:

 
 
 
 

219. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

221. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

223. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

227. Polystelic condition is found in:

 
 
 
 

228. The root nodules of leguminous plants contain:

 
 
 
 

229. Pseudomycelium is found in:

 
 
 
 

230. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

232. Psilotum is:

 
 
 
 

233. Bivalved siliceous shell or frustule occur in:

 
 
 
 

234. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

236. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

239. Leprosy is caused by:

 
 
 
 

240. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

243. Spermatophyta are characterized by producing:

 
 
 
 

244. Synzoospore is produced in:

 
 
 
 

245. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. Mixed cropping helps :

 
 
 
 

249. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

253. Select the wrong statement:

 
 
 
 

254. How is moss different from fern?

 
 
 
 

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

 
 
 
 

256. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

257. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

261. Protists which are diploid reproduce sexually by:

 
 
 
 

262. Select the correct statement: (NEET 2016)

 
 
 
 

263. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

265. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

267. Sometimes the bacterial cell is enclosed in:

 
 
 
 

268. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. The sporangium of fern contains nearly:

 
 
 
 

273. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

275. Which organisms are the oldest life forms?

 
 
 
 

276. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

278. Which is a tautonym?

 
 
 
 

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

 
 
 
 

280. Which of the following statements is not correct?

 
 
 
 

281. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. The alga, Spirogyra are found in :

 
 
 
 

285.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

289. How a fern differs from a moss?

 
 
 
 

290. Late blight of potato is caused by :

 
 
 
 

291. Which among the following is a shrub?

 
 
 
 

292. Bryophyta have been placed in cryptogams because:

 
 
 
 

293. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

298. An alga which is rich in proteins:

 
 
 
 

299. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

301. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

303. Bacteriophage consists of:

 
 
 
 

304. Ovary is absent in :

 
 
 
 

305. 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?

 
 
 
 

306. In moss, stomata are found:

 
 
 
 

307. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

309. The term stele was given by:

 
 
 
 

310. Which of the following are absent in Mycoplasma?

 
 
 
 

311. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

313. Ovary is absent in:

 
 
 
 

314. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

322. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

325. Fern prothallus is:

 
 
 
 

326. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

330. Pinus is:

 
 
 
 

331. Lichens reproduce by :

 
 
 
 

332. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

338. Streptomyces falls under:

 
 
 
 

339. Which of the following is a monocot?

 
 
 
 

340. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

342. 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?

 
 
 
 

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

 
 
 
 

344. Vegetative reproduction in Cycas is by means of :

 
 
 
 

345. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

347. The young leaves of Cycas have :

 
 
 
 

348. . Tapetum develops in:

 
 
 
 

349. The sporophyte of Riccia is :

 
 
 
 

350. Germ theory of disease was proposed by:

 
 
 
 

351. Plasmids are:

 
 
 
 

352. The spur of Pinus roxburghii has :

 
 
 
 

353. Etiology includes the study of :

 
 
 
 

354. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

359. Liverworts are included in :

 
 
 
 

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

 
 
 
 

361. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

363. The photosynthetic protists are:

 
 
 
 

364. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

366. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

367. Vascular cryptogams is the term used for:

 
 
 
 

368. Cleavage polyembryony is found in :

 
 
 
 

369. In angiosperms double fertilization represents:

 
 
 
 

370. Cycas plant in appearance resembles :

 
 
 
 

371. Selaginella differs from Moss in having:

 
 
 
 

372. Who discovered streptomycin?

 
 
 
 

373. Aflatoxin is produced by:

 
 
 
 

374. Meristele of fern is:

 
 
 
 

375. Some bacteria cannot be killed easily because of:

 
 
 
 

376. Penicillin was discovered by:

 
 
 
 

377. The orders generally have the uniform endings:

 
 
 
 

378. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

380. Rhizopus belongs to:

 
 
 
 

381. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

383. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

385. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

386. Yeast belongs to class:

 
 
 
 

387. The megaspore of Selaginella on germination produces:

 
 
 
 

388. An Hfr bacterium is one that contains:

 
 
 
 

389. Which is an edible fungus?

 
 
 
 

390. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

392. Number of capsomeres forming capsid of TMV is:

 
 
 
 

393. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

395. Kuru, a human disease is caused by:

 
 
 
 

396. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

398. Roots are absent in :

 
 
 
 

399. The chloroplast of Chlamydomonas are:

 
 
 
 

400. In moss, sporogenous tissue arises from:

 
 
 
 

401. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

403. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

405. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

407. Gram stain is used to:

 
 
 
 

408. Cycas revoluta is widely grown as :

 
 
 
 

409. Green plants are classified as :

 
 
 
 

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

 
 
 
 

411. 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?

 
 
 
 

412. The gametophyte of fern bears:

 
 
 
 

413. Pythium debaryanum is the causative agent of:

 
 
 
 

414. A gill of Agaricus:

 
 
 
 

415. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

416. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

417. In a bacteriophage, DNA is present in:

 
 
 
 

418. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

420. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. Halophiles are the bacteria that require for growth:

 
 
 
 

424. Embryophyta includes :

 
 
 
 

425. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

426. Which part of Riccia bears nurse cells?

 
 
 
 

427. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

430. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

432. Lichens show :

 
 
 
 

433. The leafy fern plant represents the:

 
 
 
 

434. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. Tautonyms are illegitimate in:

 
 
 
 

438. Spirogyra represents the :

 
 
 
 

439. Coenogamete is found in:

 
 
 
 

440. The roots of Cycas are :

 
 
 
 

441. Lichens are the indicator of pollution :

 
 
 
 

442. Bacteria differ from viruses in being sensitive to:

 
 
 
 

443. The two conjugating gametangia of Rhizopus are:

 
 
 
 

444. Facultative parasite is:

 
 
 
 

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

 
 
 
 

446. In Cycas which structure is equivalent to stamen?

 
 
 
 

447. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

450. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

453. Why is Cycas called a living fossil?

 
 
 
 

454. Most of the algae are :

 
 
 
 

455. The sporangia of Selaginella are attached:

 
 
 
 

456. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

458. The development of sporangium in Selaginella is:

 
 
 
 

459. Cyanophage is a virus that attacks:

 
 
 
 

460. The sexual reproductive organs in Rhizopus are:

 
 
 
 

461. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. The group algae possesses representatives belonging to kingdom:

 
 
 
 

466. Protistan algae obtain their food as:

 
 
 
 

467. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

470. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

472. The smallest unit of classification is:

 
 
 
 

473. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

476. In Gymnosperms endosperm is a:

 
 
 
 

477. Economic importance of bacteria lies in their being:

 
 
 
 

478. Sexual reproduction in Rhizopus is by:

 
 
 
 

479. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

483. Simple polyembryony is found in :

 
 
 
 

484. The ferns are usually found:

 
 
 
 

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

 
 
 
 

486. Club moss is the common name of :

 
 
 
 

487. What is streptomycin?

 
 
 
 

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

 
 
 
 

489. Red rot of sugarcane is caused by:

 
 
 
 

490. Discovery of penicillin was based on:

 
 
 
 

491. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

496. Lichens form the first community in

 
 
 
 

497. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

503. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. The order generally ends with:

 
 
 
 

507. Ergot of rye is caused by:

 
 
 
 

508. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

510. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

512. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

516. In Selaginella, the microsporangia are:

 
 
 
 

517. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. The male gametes of Pinus are :

 
 
 
 

522. The DNA of E coli is:

 
 
 
 

523. Chemosynthetic bacteria are:

 
 
 
 

524. The leaves of Funaria are :

 
 
 
 

525. Water-net is the name of:

 
 
 
 

526. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

528. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

530. Detailed study of bacteriophage was made by:

 
 
 
 

531. The source of litmus is :

 
 
 
 

532. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

534. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. Embryophyta includes:

 
 
 
 

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

 
 
 
 

539. Most primitive kind of flower is represented by:

 
 
 
 

540. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

542. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

544. The flagella of Chlamydomonas are:

 
 
 
 

545. Among the algae kelps are :

 
 
 
 

546. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

548. Photosynthetic bacteria have:

 
 
 
 

549. The archegonia of Selaginella are differentiated by:

 
 
 
 

550. Oswald Tippo’s classification is:

 
 
 
 

551. Which is a gametophytic tissue?

 
 
 
 

552. Total parasites belong to:

 
 
 
 

553. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

555. To which country Antony van Leeuwenhoek belong?

 
 
 
 

556. Bacteria were first discovered by:

 
 
 
 

557. Banana bunchy top is caused by :

 
 
 
 

558. Which causes red tide?

 
 
 
 

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

 
 
 
 

560. The ascus of yeast contains:

 
 
 
 

561. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

563. Ethylene oxide is widely used to:

 
 
 
 

564. Cyathia is characterized by:

 
 
 
 

565. Which class of Protozoa includes all parasitic forms?

 
 
 
 

566. Cryptogams include :

 
 
 
 

567. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

569. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

571. All algae have:

 
 
 
 

572. Bacteriophages have been used as:

 
 
 
 

573. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

575. The sori in Dryopteris are found on:

 
 
 
 

576. The gametophyte of moss has distinct phases :

 
 
 
 

577. Which of the following applies to Selaginella?

 
 
 
 

578. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

583. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

585. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

588. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

592. Some biologists have used the term Mycetozoa for:

 
 
 
 

593. John Hutchinson divided dicots into two divisions:

 
 
 
 

594. The role of meiosis is for:

 
 
 
 

595. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

597. Lichens reproduce by :

 
 
 
 

598. Placenta in fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. 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:

 
 
 
 

602. Black rust of wheat is caused by:

 
 
 
 

603. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

604. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

606. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

611. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

615. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

617. Vascular cryptogam is the term used for :

 
 
 
 

618. Heterospory is the production of:

 
 
 
 

619. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

621. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

625. Quarantine regulations are concerned with:

 
 
 
 

626. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

628. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

631. The fungi used as food are:

 
 
 
 

632. Ectocarpus produces:

 
 
 
 

633. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

638. Bacteria which are spherical are called:

 
 
 
 

639. 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?

 
 
 
 

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

 
 
 
 

641. Some diseases caused by bacteria are:

 
 
 
 

642. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

644. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

647. Enteric bacteria are those bacteria that live:

 
 
 
 

648. Virus and bacteriophage are made-up of:

 
 
 
 

649. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

651. The fern plant is:

 
 
 
 

652. Red rot of sugarcane is caused by :

 
 
 
 

653. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

655. Which bacteria convert nitrate into nitrogen?

 
 
 
 

656. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

658. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

660. Genetic material of TMV is:

 
 
 
 

661. Sleeping sickness disease in man is caused by:

 
 
 
 

662. 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:

 
 
 
 

663. Leaf spot of groundnut is caused by :

 
 
 
 

664. Viroids have:

 
 
 
 

665. Mycoplasma contains:

 
 
 
 

666. Which statement is wrong in regard to bacteria?

 
 
 
 

667. What is absent in Deuteromycetes?

 
 
 
 

668. The middle sterile part of capsule is called:

 
 
 
 

669. Standard size of a herbarium sheet is:

 
 
 
 

670. Which of the following is a heterosporous pteridophyte?

 
 
 
 

671. The disease symptom necrosis refers to :

 
 
 
 

672. Saccharomyces is used in:

 
 
 
 

673. Green plants are classified as:

 
 
 
 

674. Which of the following lichens is harmful?

 
 
 
 

675. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

677. The rhizoids of Funaria are :

 
 
 
 

678. Pollination in Pinus is :

 
 
 
 

679. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

681. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

683. The mode of nutrition of bacteria is usually:

 
 
 
 

684. Mycoplasma are:

 
 
 
 

685. Fertility of the soil is increased by:

 
 
 
 

686. The truncated cone of HIV consists of:

 
 
 
 

687. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

690. Water-borne bacterial diseases are:

 
 
 
 

691. Which lichen is called Reindeer moss?

 
 
 
 

692. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

696. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

698. Disease resistant plant varieties can be produced by :

 
 
 
 

699. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

704. Diploxylic vascular bundles are found in:

 
 
 
 

705. The coralloid roots are :

 
 
 
 

706. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

708. Special feature of pollen grains of Pinus is :

 
 
 
 

709. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

710. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

713. E coli is a:

 
 
 
 

714. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

718. The seedless plants which possess vascular tissues are:

 
 
 
 

719. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

721. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

723. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

725. Cocci types of bacteria are:

 
 
 
 

726. Cycas is different from mango in :

 
 
 
 

727. Who named prion?

 
 
 
 

728. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

730. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

732. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

736. Seeds are characteristically found in :

 
 
 
 

737. Embryo formation is not known in :

 
 
 
 

738. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

740. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

742. Pollination drop is:

 
 
 
 

743. The lambda phase is a:

 
 
 
 

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

 
 
 
 

745. Fern phloem lacks:

 
 
 
 

746. In moss, reduction division occurs in :

 
 
 
 

747. Rice, pea, potato are :

 
 
 
 

748. In Cycas:

 
 
 
 

749. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. Chemosynthetic bacteria are:

 
 
 
 

753. Which is a redwood tree?

 
 
 
 

754. The plants of Funaria grow :

 
 
 
 

755. Most resistant spore in bacteria is:

 
 
 
 

756. Viruses have:

 
 
 
 

757. The zoospores of Ulothrix are :

 
 
 
 

758. In Cycas microsporangia are borne on:

 
 
 
 

759. Antibiotics cure the disease by:

 
 
 
 

760. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

766. Penicillin is obtained from:

 
 
 
 

767. Protozoans are considered animals because these are:

 
 
 
 

768. Cycas is:

 
 
 
 

769. Saccharomyces ludwigii ascus produces:

 
 
 
 

770. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

772. Which fixes atmospheric nitrogen?

 
 
 
 

773. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

775. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

778. Fern prothallus produces:

 
 
 
 

779. The vascular bundles of Cycas stem are :

 
 
 
 

780. The most primitive vascular plants is:

 
 
 
 

781. Mycoplasma was discovered by:

 
 
 
 

782. Which is not true for Escherichia coli?

 
 
 
 

783. Which of the following is sago palm?

 
 
 
 

784. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

786. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

788. Typhoid in man is caused by:

 
 
 
 

789. Pasteurized milk is:

 
 
 
 

790. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. 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:

 
 
 
 

795. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

799. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

801. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

803. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

806. Smut of maize is caused by :

 
 
 
 

807. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

809. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

811. What is a vector?

 
 
 
 

812. Helotism word is used for the symbiosis between :

 
 
 
 

813. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

815. Most of the lichens are composed of :

 
 
 
 

816. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

817. Funaria is :

 
 
 
 

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

 
 
 
 

819. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

821. In Cycas the fertilization is:

 
 
 
 

822. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

824. Smallpox is caused by:

 
 
 
 

825. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

827. Male gametophyte of Selaginella is found:

 
 
 
 

828. Photosynthetic protists belong to:

 
 
 
 

829. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

832. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

836. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

841. 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:

 
 
 
 

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

 
 
 
 

843. Which of the following have a prokaryotic cell?

 
 
 
 

844. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

846. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

852. Which is a fungicide?

 
 
 
 

853. Fern plants are:

 
 
 
 

854. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

855. In Funaria :

 
 
 
 

856. In moss, conducting tissue is made up of

 
 
 
 

857. The gametophyte produced by apospory is :

 
 
 
 

858. Oswald Tippo’s classification was based on :

 
 
 
 

859. Mycoplasmas are not viruses in nature because:

 
 
 
 

860. Which of the following is true for viruses?

 
 
 
 

861. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

863. Heterocysts are found in :

 
 
 
 

864. The teeth of peristome of Funaria are :