Quiz_Random

1. In Funaria, calyptra is derived from :

 
 
 
 

2. Germination of the seed of Pinus is :

 
 
 
 

3. Early blight of potato is caused by:

 
 
 
 

4. How is moss different from fern?

 
 
 
 

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

 
 
 
 

6. Bacteria which are spherical are called:

 
 
 
 

7. Which of the following does not contain chlorophyll?

 
 
 
 

8. The roots of Cycas are :

 
 
 
 

9. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

11. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Winged seeds are found in :

 
 
 
 

16. The Rhizopus is:

 
 
 
 

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

 
 
 
 

18. Which have the largest antherozoid?

 
 
 
 

19. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. The lambda phase is a:

 
 
 
 

23. Which of the following shows heterotrichous habit?

 
 
 
 

24. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

26. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

28. Fern prothallus produces:

 
 
 
 

29. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

30. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

36. Mycoplasma was discovered by:

 
 
 
 

37. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

39. Pollination in Pinus is :

 
 
 
 

40. Which among the following is a shrub?

 
 
 
 

41. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

43. Water-net is the name of:

 
 
 
 

44. Quarantine regulations are concerned with:

 
 
 
 

45. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

47. Nitrifying bacteria play an important role by converting:

 
 
 
 

48. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

50. Reproduction in Cycas takes place by :

 
 
 
 

51. Chemosynthetic bacteria are:

 
 
 
 

52. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

54. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Lichens reproduce by :

 
 
 
 

58. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. Zoogametes are not found in:

 
 
 
 

62. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

64. Climbers are found in genus:

 
 
 
 

65. All protozoans possess:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

68. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

70. Mycoplasmas are not viruses in nature because:

 
 
 
 

71. Typhoid in man is caused by:

 
 
 
 

72. Which of the following have algal zone?

 
 
 
 

73. The source of litmus is :

 
 
 
 

74. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. John Hutchinson divided dicots into two divisions:

 
 
 
 

78. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

80. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

82. Total parasites belong to:

 
 
 
 

83. TMV was isolated in crystalline form by:

 
 
 
 

84. The fungi are mostly:

 
 
 
 

85. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. Funaria can be differentiated from Cycas :

 
 
 
 

89. The mycelium of Rhizopus is:

 
 
 
 

90. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

92. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

93. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

95. Cap cells are found in the filament of:

 
 
 
 

96.

 

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

 
 
 
 

98. Which is a redwood tree?

 
 
 
 

99. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

101. Lichens show :

 
 
 
 

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

 
 
 
 

103. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

106. Nannandria are:

 
 
 
 

107. 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?

 
 
 
 

108. What is mycorrhiza?

 
 
 
 

109. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

114. Virion refers to:

 
 
 
 

115. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

116. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. . Tapetum develops in:

 
 
 
 

120. Smut of maize is caused by :

 
 
 
 

121. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

124. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

127. The microsporophylls on the cone of Cycas are :

 
 
 
 

128. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

132. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

143. Mycoplasma contains:

 
 
 
 

144. Which one of the following statement is wrong?

 
 
 
 

145. Generic name of mango is:

 
 
 
 

146. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

148. The spur of Pinus roxburghii has :

 
 
 
 

149. Bacteriophage consists of:

 
 
 
 

150. Pteridophyta are also called:

 
 
 
 

151. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

153. Saccharomyces ludwigii ascus produces:

 
 
 
 

154. Iodine is obtained from :

 
 
 
 

155. In binomial system most of the words are:

 
 
 
 

156. Saccharomyces is well known for:

 
 
 
 

157. Mycoplasma is different from bacteria due to:

 
 
 
 

158. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

160. The leafy fern plant represents the:

 
 
 
 

161. Meristele of fern is:

 
 
 
 

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

 
 
 
 

163. Bacteriophages have been used as:

 
 
 
 

164. Citrus canker is caused by:

 
 
 
 

165. The largest alga is:

 
 
 
 

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

 
 
 
 

167. Late blight of potato is caused by :

 
 
 
 

168. Antibiotic has been extracted from :

 
 
 
 

169. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

171. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

175. Yeast belongs to class:

 
 
 
 

176. Lichens are indicators of :

 
 
 
 

177. 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:

 
 
 
 

178. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

180. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

182. Downy mildew disease is caused by :

 
 
 
 

183. The tree fern is:

 
 
 
 

184. The middle sterile part of capsule is called:

 
 
 
 

185. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

187. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

189. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

192. Gametophyte is the main plant body in :

 
 
 
 

193. E coli is a:

 
 
 
 

194. Diphtheria is caused by:

 
 
 
 

195. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

197. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

199. Spermatophyta are characterized by producing:

 
 
 
 

200. Psilotum is:

 
 
 
 

201. Which is a gametophytic tissue?

 
 
 
 

202. Fertility of the soil is increased by:

 
 
 
 

203. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

205. The central part of Funaria axis is :

 
 
 
 

206. Who named prion?

 
 
 
 

207. Pinus gerardiana is :

 
 
 
 

208. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

211. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

215. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

217. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

221. Broad spectrum antibiotic is, which:

 
 
 
 

222. Protozoans are considered animals because these are:

 
 
 
 

223. Pollination in Cycas takes place by :

 
 
 
 

224. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

226. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

229. Lichens form the first community in

 
 
 
 

230. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

231. 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:

 
 
 
 

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

 
 
 
 

233. The sporophyte of Riccia is :

 
 
 
 

234. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

237. Botulinum toxin effects:

 
 
 
 

238. The rhizoids of Funaria are :

 
 
 
 

239. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

241. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

242. Siphonogamy is found in:

 
 
 
 

243. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

247. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

249. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

251. The leaves of Funaria are :

 
 
 
 

252. Winged pollen grains are found in :

 
 
 
 

253. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. A gill of Agaricus:

 
 
 
 

257. Roots are absent in :

 
 
 
 

258. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

261. The smallest bacterium is:

 
 
 
 

262. The disease apple scab is caused by:

 
 
 
 

263. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

266. Why is Cycas called a living fossil?

 
 
 
 

267. Ovary is absent in:

 
 
 
 

268. Virus and bacteriophage are made-up of:

 
 
 
 

269. Vascular cryptogam is the term used for :

 
 
 
 

270. Cell walls of Gram-positive bacteria contain:

 
 
 
 

271. Which of the following lichens is harmful?

 
 
 
 

272. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. Yeast grows more rapidly in:

 
 
 
 

276. In moss, sporogenous tissue arises from:

 
 
 
 

277. 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:

 
 
 
 

278. The spermatozoids of Cycas are :

 
 
 
 

279. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

282. Fern prothallus is:

 
 
 
 

283. Lichen show :

 
 
 
 

284. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

286. All algae have:

 
 
 
 

287. Plasmids are:

 
 
 
 

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

 
 
 
 

289. Gram stain is used to:

 
 
 
 

290. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

292. White rust of crucifers is caused by:

 
 
 
 

293. Rhizopus belongs to:

 
 
 
 

294. Azolla and Salvinia both are:

 
 
 
 

295. Most primitive embryophytes are placed in:

 
 
 
 

296. Which condition is found in Cycas?

 
 
 
 

297. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

301. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

304. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

311. Enteric bacteria are those bacteria that live:

 
 
 
 

312. Germ theory of disease was proposed by:

 
 
 
 

313. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

315. The sporangia of Selaginella are attached:

 
 
 
 

316. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

317. Facultative parasite is:

 
 
 
 

318. Clostridium can:

 
 
 
 

319. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

323. The gametophyte of fern bears:

 
 
 
 

324. Club moss is the common name of :

 
 
 
 

325. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

326. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

333. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

337. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

339. Which of the following is true for viruses?

 
 
 
 

340. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

342. Most of the lichens are composed of :

 
 
 
 

343. Bryophyta have been placed in cryptogams because:

 
 
 
 

344. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

345. Pinus microsporophyll bears:

 
 
 
 

346. Which part of Riccia bears nurse cells?

 
 
 
 

347. To which class Riccia belongs :

 
 
 
 

348. The megasporangium of Selaginella is:

 
 
 
 

349. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

353. Most primitive kind of flower is represented by:

 
 
 
 

354. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

358. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

369.

370. The coralloid roots are :

 
 
 
 

371. Lichens are pioneers of vegetation in a :

 
 
 
 

372. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380.

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

 
 
 
 

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

 
 
 
 

383. Oswald Tippo’s classification is:

 
 
 
 

384. The zygospore in Rhizopus on germination forms:

 
 
 
 

385. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

388. The sori in Dryopteris are found on:

 
 
 
 

389. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

398. In dinoflagellates, the two flagella are:

 
 
 
 

399. Mixed cropping helps :

 
 
 
 

400. What is the role of nitrifying bacteria?

 
 
 
 

401. Which one of the following is a monocot?

 
 
 
 

402. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

404. Vascular tissue is found in :

 
 
 
 

405. Woody climbers are known as :

 
 
 
 

406. Viruses are commonly transmitted in plants through:

 
 
 
 

407. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

412. Which bacteria convert nitrate into nitrogen?

 
 
 
 

413. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

415. The sexual reproductive organs in Rhizopus are:

 
 
 
 

416. To which country Antony van Leeuwenhoek belong?

 
 
 
 

417. Which organisms are the oldest life forms?

 
 
 
 

418. The zoospores of Ulothrix are :

 
 
 
 

419. Viruses have:

 
 
 
 

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

 
 
 
 

421. An Hfr bacterium is one that contains:

 
 
 
 

422. The nucleus of bacteria is:

 
 
 
 

423. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

425. Metulae are found in:

 
 
 
 

426. Lichens are the indicator of pollution :

 
 
 
 

427. Which of the following are absent in Mycoplasma?

 
 
 
 

428. Who among the following discovered virus?

 
 
 
 

429. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

431. Cellular slime mold is:

 
 
 
 

432. Sometimes the bacterial cell is enclosed in:

 
 
 
 

433. Pasteur is famous for his:

 
 
 
 

434. Halophiles are the bacteria that require for growth:

 
 
 
 

435. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

437. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

439. Number of capsomeres forming capsid of TMV is:

 
 
 
 

440. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

442. Green plants are classified as:

 
 
 
 

443. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

447. The gametophyte of moss has distinct phases :

 
 
 
 

448. Rice, pea, potato are :

 
 
 
 

449. Embryophyta includes:

 
 
 
 

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

 
 
 
 

451. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

453. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

455. Red rot of sugarcane is caused by:

 
 
 
 

456. Cryptogams include :

 
 
 
 

457. The disease symptom necrosis refers to :

 
 
 
 

458. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

461. Pollination drop is:

 
 
 
 

462. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

464. In Gymnosperms endosperm is a:

 
 
 
 

465. Transfusion tissue is present in the leaflet of:

 
 
 
 

466. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

468. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. Some bacteria cannot be killed easily because of:

 
 
 
 

475. Heterospory is the production of:

 
 
 
 

476. Each chloroplast in Spirogyra bears :

 
 
 
 

477. One of the distinctive feature of Spirogyra is :

 
 
 
 

478. The ascus of yeast contains:

 
 
 
 

479. The similarity between cyanobacteria and bacteria:

 
 
 
 

480. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

482. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. Milk is converted to curd by:

 
 
 
 

486. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

489. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

493. What is streptomycin?

 
 
 
 

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

 
 
 
 

495. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

497. Yeast is a source of:

 
 
 
 

498. Which is a tautonym?

 
 
 
 

499. The chloroplast of Chlamydomonas are:

 
 
 
 

500. In moss, stomata are found:

 
 
 
 

501. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

503. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

505. Cycas revoluta is widely grown as :

 
 
 
 

506. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

510. Parmelia belongs to :

 
 
 
 

511. Lichens are ecologically important because :

 
 
 
 

512. Select the correct statement: (NEET 2016)

 
 
 
 

513. First animal pathogenic virus was discovered by:

 
 
 
 

514. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

516. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

519. Economic importance of bacteria lies in their being:

 
 
 
 

520. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

523. In moss, calyptra is formed from:

 
 
 
 

524. In Cycas microsporangia are borne on:

 
 
 
 

525. 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?

 
 
 
 

526. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

528. Majority of lichens are :

 
 
 
 

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

 
 
 
 

530. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

532. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

534. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

536. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

538. Citrus canker is caused by :

 
 
 
 

539. Club moss and Peat moss belong to:

 
 
 
 

540. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

542. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

544. The group algae possesses representatives belonging to kingdom:

 
 
 
 

545. Amoeba is a member of the phylum:

 
 
 
 

546. Bacteria are considered to be plants because they:

 
 
 
 

547. In Cycas:

 
 
 
 

548. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

552. Lichens reproduce by :

 
 
 
 

553. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

556. The chromosomal number in:

 
 
 
 

557. Rhizopus and yeast are usually:

 
 
 
 

558. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

560. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

562. True sexuality is not found in:

 
 
 
 

563. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

564. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

566. Bacteria were first discovered by:

 
 
 
 

567. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. Funaria is :

 
 
 
 

573. Anoxygenic photosynthesis occurs in:

 
 
 
 

574. The young leaves of Cycas have :

 
 
 
 

575. In Selaginella, the microsporangia are:

 
 
 
 

576. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

578. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

579. Heterocysts are found in :

 
 
 
 

580. Mycoplasma are sensitive to:

 
 
 
 

581. The chief characteristic of bryophyta is that :

 
 
 
 

582. Which of the following are included in Tracheophyta?

 
 
 
 

583. The gametophyte of fern is as:

 
 
 
 

584. Kuru, a human disease is caused by:

 
 
 
 

585. Iodine is obtained from:

 
 
 
 

586. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

588. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

591. Antibiotics cure the disease by:

 
 
 
 

592. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

593. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

595. Pasteurized milk is:

 
 
 
 

596. Photosynthetic protists belong to:

 
 
 
 

597. The vascular bundles of Cycas stem are :

 
 
 
 

598. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

603. Spermatophyta are characterized by producing:

 
 
 
 

604. Ulothrix produces :

 
 
 
 

605. The prothallus of fern represents the plant:

 
 
 
 

606. Which of the following is a monocot?

 
 
 
 

607. Green plants are classified as :

 
 
 
 

608. The sporangiophores in Rhizopus are:

 
 
 
 

609. The leaf of Cycas shows:

 
 
 
 

610. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

612. Which is the correct statement about Selaginella?

 
 
 
 

613. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. Genetic material of TMV is:

 
 
 
 

617. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

619. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

622. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

624. Mucilaginous canals in Cycas are found in :

 
 
 
 

625. Detailed study of bacteriophage was made by:

 
 
 
 

626. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

633. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

638. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

640. Protists which are diploid reproduce sexually by:

 
 
 
 

641. Pinus is:

 
 
 
 

642. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

644. Viruses are considered to be:

 
 
 
 

645. Red rot of sugarcane is caused by :

 
 
 
 

646. Black rust of wheat is caused by:

 
 
 
 

647. Placenta in fern is:

 
 
 
 

648. Cyathia is characterized by:

 
 
 
 

649. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

650. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

652. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

653. Which causes red tide?

 
 
 
 

654. In a bacteriophage, DNA is present in:

 
 
 
 

655. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

660. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

662. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

664. Funaria are commonly found :

 
 
 
 

665. 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?

 
 
 
 

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

 
 
 
 

667. The DNA of E coli is:

 
 
 
 

668. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

670. Which is not true for Escherichia coli?

 
 
 
 

671. Isomorphic type alternation of generation is found in:

 
 
 
 

672. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

676. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

678. Botulism is a:

 
 
 
 

679. What are Cyanobacteria?

 
 
 
 

680. The order generally ends with:

 
 
 
 

681. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

683. Most resistant spore in bacteria is:

 
 
 
 

684. Sexual reproduction in Rhizopus is by:

 
 
 
 

685. Spores of which plants have chloroplast:

 
 
 
 

686. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

688. Who discovered cyanophages?

 
 
 
 

689. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

691. What is a vector?

 
 
 
 

692. The chief characteristic of class Ascomycetes is:

 
 
 
 

693. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

694. Absorptive nutrition is:

 
 
 
 

695. LSD is:

 
 
 
 

696. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

698. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

701. Which of the following is sago palm?

 
 
 
 

702. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

707. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

710. Soil fertility is lost by the activities of:

 
 
 
 

711. Seeds are characteristically found in :

 
 
 
 

712. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

714. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

717. Leprosy is caused by:

 
 
 
 

718. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

724. Which is not found in bacteria?

 
 
 
 

725. Vegetative reproduction in Cycas is by means of :

 
 
 
 

726. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

728. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

730. 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:

 
 
 
 

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

 
 
 
 

732. 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:

 
 
 
 

733. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

735. Male gametes in Dryopteris are:

 
 
 
 

736. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

738. Triple antigen injection or vaccine are for:

 
 
 
 

739. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

741. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

744. The phloem of vascular system of Cycas is :

 
 
 
 

745. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

747. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

749. Aflatoxin is produced by:

 
 
 
 

750. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

752. The teeth of peristome of Funaria are :

 
 
 
 

753. The development of Selaginella embryo is:

 
 
 
 

754. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Fairy ring is the name given to:

 
 
 
 

758. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. The stele of Dryopteris is a:

 
 
 
 

765.

766. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

772. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

774. All archaebacteria lack:

 
 
 
 

775. Select the wrong statement:

 
 
 
 

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

 
 
 
 

777. Agar-agar is obtained from:

 
 
 
 

778. In moss, peristomial teeth are:

 
 
 
 

779. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

781. Cycas is different from mango in :

 
 
 
 

782. Cycas is similar to a mustard plant :

 
 
 
 

783. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

785. Endemic plants are characterised by their:

 
 
 
 

786. Which is a fungicide?

 
 
 
 

787. Viroids have:

 
 
 
 

788. 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?

 
 
 
 

789. The largest known bacterium is:

 
 
 
 

790. Embryophyta includes :

 
 
 
 

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

 
 
 
 

792. Spirogyra represents the :

 
 
 
 

793. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

796. The antibiotic is obtained from:

 
 
 
 

797. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

803. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

805. Pythium debaryanum is the causative agent of:

 
 
 
 

806. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

810. Which is an edible fungus?

 
 
 
 

811. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

814. The mode of nutrition of bacteria is usually:

 
 
 
 

815. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

819. Which of the following is true for Selaginella?

 
 
 
 

820. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

821. Who discovered heterothallism in fungi?

 
 
 
 

822. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

824. Azolla growing in paddy fields helps in:

 
 
 
 

825. Methanogens belong to:

 
 
 
 

826. In tracheophyta:

 
 
 
 

827. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

829. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

831. Little leaf disease of Brinjal is caused by:

 
 
 
 

832. The fungi used as food are:

 
 
 
 

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

 
 
 
 

834. Heterosporous pteridophytes always form:

 
 
 
 

835. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

837. Ovary is absent in :

 
 
 
 

838. Common phycobiont in a lichen is :

 
 
 
 

839. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

841. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

842. Fruits are not found in:

 
 
 
 

843. Chief constituents of bordeaux mixture are :

 
 
 
 

844. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

846. Linnaeus is credited with introducing:

 
 
 
 

847. Liverworts are included in :

 
 
 
 

848. The ferns are usually found:

 
 
 
 

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

 
 
 
 

850. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

852. The truncated cone of HIV consists of:

 
 
 
 

853. Seeds are characteristically found in:

 
 
 
 

854. Most appropriate word for protozoans is:

 
 
 
 

855. Which of the following are included in Tracheophyta?

 
 
 
 

856. Cocci types of bacteria are:

 
 
 
 

857. Cycas is :

 
 
 
 

858. Select the wrong statement:

 
 
 
 

859. Discovery of penicillin was based on:

 
 
 
 

860. Selaginella differs from Moss in having:

 
 
 
 

861. In a diplontic life cycle:

 
 
 
 

862. The term stele was given by:

 
 
 
 

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

 
 
 
 

864. Standard size of a herbarium sheet is: