Quiz_Random

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

 
 
 
 

2. Anoxygenic photosynthesis occurs in:

 
 
 
 

3. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Each chloroplast in Spirogyra bears :

 
 
 
 

7. Which of the following applies to Selaginella?

 
 
 
 

8. The leaves of Funaria are :

 
 
 
 

9. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

11. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

13. Mycoplasma are:

 
 
 
 

14. Parmelia belongs to :

 
 
 
 

15. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

17. 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:

 
 
 
 

18. Who named prion?

 
 
 
 

19. Facultative parasite is:

 
 
 
 

20. The first to isolate a plant virus was:

 
 
 
 

21. Zoogametes are not found in:

 
 
 
 

22. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

24. The teeth of peristome of Funaria are :

 
 
 
 

25. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. In moss, peristomial teeth are:

 
 
 
 

31. All archaebacteria lack:

 
 
 
 

32. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Soil fertility is lost by the activities of:

 
 
 
 

36. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. The largest alga is:

 
 
 
 

40. Gymnosperms could also be called as:

 
 
 
 

41. The mycelium of Rhizopus is:

 
 
 
 

42. First animal pathogenic virus was discovered by:

 
 
 
 

43. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. To which country Antony van Leeuwenhoek belong?

 
 
 
 

48. The gametophyte of fern bears:

 
 
 
 

49. Ulothrix produces :

 
 
 
 

50. Ovary is absent in:

 
 
 
 

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

 
 
 
 

52. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

54. True sexuality is not found in:

 
 
 
 

55. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. In moss, stomata are found:

 
 
 
 

60. Nannandria are:

 
 
 
 

61. How is moss different from fern?

 
 
 
 

62. Lichens are indicators of :

 
 
 
 

63.

64. Triple antigen injection or vaccine are for:

 
 
 
 

65. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

67. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

75. Roots are absent in :

 
 
 
 

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

 
 
 
 

77. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

83. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

91. The prothallus of fern represents the plant:

 
 
 
 

92. Majority of lichens are :

 
 
 
 

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

 
 
 
 

94. The fungi used as food are:

 
 
 
 

95. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. The alga, Spirogyra are found in :

 
 
 
 

99. Photosynthetic protists belong to:

 
 
 
 

100. The truncated cone of HIV consists of:

 
 
 
 

101. Which of the following shows heterotrichous habit?

 
 
 
 

102. The prothallus of fern is:

 
 
 
 

103. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

105. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

107. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

109. Most of the algae are :

 
 
 
 

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

 
 
 
 

111. In moss, reduction division occurs in :

 
 
 
 

112. Mucilaginous canals in Cycas are found in :

 
 
 
 

113. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

115. Chemosynthetic bacteria are:

 
 
 
 

116. Which of the following statements is not correct?

 
 
 
 

117. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

124. Plasmids are:

 
 
 
 

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

 
 
 
 

126. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

128. 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:

 
 
 
 

129. The genetic material of poxvirus is:

 
 
 
 

130. The fungi are usually:

 
 
 
 

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

 
 
 
 

132. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

134. Multicellular and jacketed sex organs are found in :

 
 
 
 

135. . Tapetum develops in:

 
 
 
 

136. In dinoflagellates, the two flagella are:

 
 
 
 

137. Select the wrong statement:

 
 
 
 

138. Which among the following is a shrub?

 
 
 
 

139. Photosynthetic bacteria have:

 
 
 
 

140. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

142. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

145. Enteric bacteria are those bacteria that live:

 
 
 
 

146. Pseudomycelium is found in:

 
 
 
 

147. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

149. The fungi are mostly:

 
 
 
 

150. Viruses have:

 
 
 
 

151. The megasporangium of Selaginella is:

 
 
 
 

152. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

154. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

159. Quarantine regulations are concerned with:

 
 
 
 

160. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

163. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

164. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

166. Cycas is:

 
 
 
 

167. Which statement is wrong in regard to bacteria?

 
 
 
 

168. Most primitive embryophytes are placed in :

 
 
 
 

169. Viroids have:

 
 
 
 

170. Which is absent from the xylem of Cycas?

 
 
 
 

171. Psilotum is:

 
 
 
 

172. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

174. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

178. The smallest bacterium is:

 
 
 
 

179. Which of the following is sago palm?

 
 
 
 

180. Which is an edible fungus?

 
 
 
 

181. Water-net is the name of:

 
 
 
 

182. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

186. Redness of red sea is due to :

 
 
 
 

187. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

189. 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?

 
 
 
 

190. Which of the following statement is correct?

 
 
 
 

191. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

193. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

195. Club moss is the common name of :

 
 
 
 

196. Which is a fungicide?

 
 
 
 

197.

 

198. Water-borne bacterial diseases are:

 
 
 
 

199. Which part of Riccia bears nurse cells?

 
 
 
 

200. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. 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:

 
 
 
 

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

 
 
 
 

206. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

208. The zoospores of Ulothrix are :

 
 
 
 

209. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

211. Vegetative reproduction in Cycas is by means of :

 
 
 
 

212. What is a vector?

 
 
 
 

213. Which have the largest antherozoid?

 
 
 
 

214. Acetobacter is useful in:

 
 
 
 

215. Most appropriate word for protozoans is:

 
 
 
 

216. Circular DNA is seen in:

 
 
 
 

217. Embryophyta includes :

 
 
 
 

218. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

220. Who discovered heterothallism in fungi?

 
 
 
 

221. The microsporophylls on the cone of Cycas are :

 
 
 
 

222. Antibiotics cure the disease by:

 
 
 
 

223. Chief constituents of bordeaux mixture are :

 
 
 
 

224. Sporophyte of Funaria is :

 
 
 
 

225. Vascular cryptogams is the term used for:

 
 
 
 

226. Why is Cycas called a living fossil?

 
 
 
 

227. Heterotrichous habit means :

 
 
 
 

228. Winged seeds are found in :

 
 
 
 

229. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

234. The fungi that grow on wood are called:

 
 
 
 

235. Virion refers to:

 
 
 
 

236. Which bacteria convert nitrate into nitrogen?

 
 
 
 

237. Meristele of fern is:

 
 
 
 

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

 
 
 
 

239. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

242. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

245. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

247. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

249. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

251. Bivalved siliceous shell or frustule occur in:

 
 
 
 

252. The ascus of yeast contains:

 
 
 
 

253. Mycoplasma was discovered by:

 
 
 
 

254. Rhizopus and yeast are usually:

 
 
 
 

255. The tree fern is:

 
 
 
 

256. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

258. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

260. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

262. Funaria is :

 
 
 
 

263. The lambda phase is a:

 
 
 
 

264. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. Gram stain is used to:

 
 
 
 

268. Common phycobiont in a lichen is :

 
 
 
 

269. A gill of Agaricus:

 
 
 
 

270. Rice, pea, potato are :

 
 
 
 

271. The spermatozoids of Cycas are :

 
 
 
 

272. The Rhizopus is:

 
 
 
 

273. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

275. The order generally ends with:

 
 
 
 

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

 
 
 
 

277. Which of the following are included in Tracheophyta?

 
 
 
 

278. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. The antibiotic is obtained from:

 
 
 
 

282. 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?

 
 
 
 

283. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

285. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

288. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

291. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

292. The stele of Dryopteris is a:

 
 
 
 

293. Number of capsomeres forming capsid of TMV is:

 
 
 
 

294. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299. Clostridium can:

 
 
 
 

300. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

301. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

305. Fruits are not found in :

 
 
 
 

306. Which is a tautonym?

 
 
 
 

307. In Funaria, calyptra is derived from :

 
 
 
 

308. Cycas is :

 
 
 
 

309. Some biologists have used the term Mycetozoa for:

 
 
 
 

310. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

314. Bacteria differ from viruses in being sensitive to:

 
 
 
 

315. Placenta in fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

320. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

323. Seeds are characteristically found in :

 
 
 
 

324. The largest known bacterium is:

 
 
 
 

325. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

327. The sporangia of Selaginella are attached:

 
 
 
 

328. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

334. Selaginella differs from Moss in having:

 
 
 
 

335. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

338. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

340. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

342. Who discovered streptomycin?

 
 
 
 

343. An Hfr bacterium is one that contains:

 
 
 
 

344. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

351. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

354. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. The roots of Cycas are :

 
 
 
 

358. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. The role of meiosis is for:

 
 
 
 

365. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

368. Azolla and Salvinia both are:

 
 
 
 

369. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

373. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

375. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

379. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

381. Reserve food in Euglena is:

 
 
 
 

382. Climbers are found in genus:

 
 
 
 

383. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

385. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

389. Green plants are classified as:

 
 
 
 

390. Vascular tissue is found in :

 
 
 
 

391. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

397. The middle sterile part of capsule is called:

 
 
 
 

398. Interferon is a:

 
 
 
 

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

 
 
 
 

400. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

402. Amoeba is a member of the phylum:

 
 
 
 

403. 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:

 
 
 
 

404. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

410. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Ovules are not found enclosed in ovary in :

 
 
 
 

414. E coli is a:

 
 
 
 

415. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

417. Longest known virus is:

 
 
 
 

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

 
 
 
 

419. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

421. Special feature of pollen grains of Pinus is :

 
 
 
 

422. Which group of algae have an incipient nucleus?

 
 
 
 

423. Heterosporous pteridophytes always form:

 
 
 
 

424. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. The smallest unit of classification is:

 
 
 
 

432. Germination of the seed of Pinus is :

 
 
 
 

433. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

435. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

437. Ectocarpus produces:

 
 
 
 

438. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

440. Cycas is similar to a mustard plant :

 
 
 
 

441. Ovules are not found enclosed in ovary in :

 
 
 
 

442.

443. Which of the following is a parasitic algae?

 
 
 
 

444. Bacteria were first discovered by:

 
 
 
 

445. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

447. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

449. Pythium debaryanum is the causative agent of:

 
 
 
 

450. Choose the correct statement about Spirogyra:

 
 
 
 

451. Ovules are not found enclosed in ovary of:

 
 
 
 

452. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

454. Fern phloem lacks:

 
 
 
 

455. What is the role of nitrifying bacteria?

 
 
 
 

456. Sometimes the bacterial cell is enclosed in:

 
 
 
 

457. Protozoans are considered animals because these are:

 
 
 
 

458. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. Mycoplasma is different from bacteria due to:

 
 
 
 

466. Isomorphic type alternation of generation is found in:

 
 
 
 

467. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

469. Select the wrong statement:

 
 
 
 

470. Fairy ring is the name given to:

 
 
 
 

471. Endemic plants are characterised by their:

 
 
 
 

472. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

474. Disease resistant plant varieties can be produced by :

 
 
 
 

475. Spirogyra differs from moss protonema in having :

 
 
 
 

476. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

478. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

481. Typhoid in man is caused by:

 
 
 
 

482. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. The term stele was given by:

 
 
 
 

486. Leprosy is caused by:

 
 
 
 

487. Bacteria which are spherical are called:

 
 
 
 

488. Nitrifying bacteria play an important role by converting:

 
 
 
 

489. Transfusion tissue is present in the leaflet of:

 
 
 
 

490. Most primitive embryophytes are placed in:

 
 
 
 

491. Enzymes are absent in:

 
 
 
 

492. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

494. Fruits are not found in Cycas because:

 
 
 
 

495. Funaria is :

 
 
 
 

496. Cellular slime mold is:

 
 
 
 

497. All algae have:

 
 
 
 

498. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

501. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

503. Bacteria growing on synthetic medium are called:

 
 
 
 

504. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

510. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

512. The megaspore of Selaginella on germination produces:

 
 
 
 

513. In Gymnosperms endosperm is a:

 
 
 
 

514. Botulinum toxin effects:

 
 
 
 

515. Spirogyra represents the :

 
 
 
 

516. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

518. The rhizoids of Funaria are :

 
 
 
 

519. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

522. The chloroplast of Chlamydomonas are:

 
 
 
 

523. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

527. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

529. Which of the following does not contain chlorophyll?

 
 
 
 

530. Penicillin was discovered by:

 
 
 
 

531. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

533. Pollination in Pinus is :

 
 
 
 

534. What are Cyanobacteria?

 
 
 
 

535. Embryophyta includes:

 
 
 
 

536. Among the algae kelps are :

 
 
 
 

537. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

539. The chief characteristic of class Ascomycetes is:

 
 
 
 

540. Who among the following discovered virus?

 
 
 
 

541. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

546. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

551. Tautonyms are illegitimate in:

 
 
 
 

552. What is absent in Deuteromycetes?

 
 
 
 

553. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

555. Bacteria are considered to be plants because they:

 
 
 
 

556. The nucleus of bacteria is:

 
 
 
 

557. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

563. Red rot of sugarcane is caused by :

 
 
 
 

564. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

566. Fern plants are:

 
 
 
 

567. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

570. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

571. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

573. In Pteris, the archegonia are present:

 
 
 
 

574. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

577.

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

 
 
 
 

579. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

582. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

585. Bacteria are placed under:

 
 
 
 

586. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

587. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

591. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

595. Polystelic condition is found in:

 
 
 
 

596. Aflatoxin is produced by:

 
 
 
 

597. The disease apple scab is caused by:

 
 
 
 

598. Diphtheria is caused by:

 
 
 
 

599. Total parasites belong to:

 
 
 
 

600. The development of Selaginella embryo is:

 
 
 
 

601. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

603. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

605. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

606. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

608. White rust of crucifers is caused by:

 
 
 
 

609. Smallpox is caused by:

 
 
 
 

610. Proembryo in Pinus is :

 
 
 
 

611. The young leaves of Cycas have :

 
 
 
 

612. Lichens form the first community in

 
 
 
 

613. Ginkgo biloba is a:

 
 
 
 

614. Metulae are found in:

 
 
 
 

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

 
 
 
 

616. The similarity between cyanobacteria and bacteria:

 
 
 
 

617. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

620. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

623. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

625. Male gametophyte of Selaginella is found:

 
 
 
 

626. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

628. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

630. Mostly type of zygospore in Ulothrix is:

 
 
 
 

631. In a diplontic life cycle:

 
 
 
 

632. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

634. The gametophyte of fern is as:

 
 
 
 

635. Pinus microsporophyll bears:

 
 
 
 

636. 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?

 
 
 
 

637. The Rhizopus gametes are formed in:

 
 
 
 

638. In moss, conducting tissue is made up of

 
 
 
 

639. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

640. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. Aflatoxin is produced as a product in :

 
 
 
 

646. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

649. Coenogamete is found in:

 
 
 
 

650. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

652. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

654. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. Methanogens belong to:

 
 
 
 

659. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

662. Seeds are characteristically found in:

 
 
 
 

663. Which organisms are the oldest life forms?

 
 
 
 

664. The antherozoids of Funaria are :

 
 
 
 

665. Little leaf disease of Brinjal is caused by:

 
 
 
 

666. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

668. The archegonia of Selaginella are differentiated by:

 
 
 
 

669. The most primitive vascular plants is:

 
 
 
 

670. Ethylene oxide is widely used to:

 
 
 
 

671. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

674. Select the correct statement: (NEET 2016)

 
 
 
 

675. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

677. Standard size of a herbarium sheet is:

 
 
 
 

678. Germ theory of disease was proposed by:

 
 
 
 

679. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

681. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

684. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

686. Virus and bacteriophage are made-up of:

 
 
 
 

687. Economic importance of bacteria lies in their being:

 
 
 
 

688. Which is an exception to cell theory?

 
 
 
 

689. The development of sporangium in Selaginella is:

 
 
 
 

690. Pythium debaryanum is the causative agent of:

 
 
 
 

691. Oswald Tippo’s classification is:

 
 
 
 

692. Yeast belongs to class:

 
 
 
 

693. The zygospore in Rhizopus on germination forms:

 
 
 
 

694. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

696. Simple polyembryony is found in :

 
 
 
 

697. In a bacteriophage, DNA is present in:

 
 
 
 

698. Pollination in Cycas takes place by :

 
 
 
 

699. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

702. Downy mildew disease is caused by :

 
 
 
 

703. Halophiles are the bacteria that require for growth:

 
 
 
 

704. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

707. Lichens reproduce by :

 
 
 
 

708. In tracheophyta:

 
 
 
 

709. Ovary is absent in :

 
 
 
 

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

 
 
 
 

711. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

715. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

718. NBG of Lucknow is now named as:

 
 
 
 

719. Bryophyta have been placed in cryptogams because:

 
 
 
 

720. Small epidermal swellings due to infection are called :

 
 
 
 

721. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

724. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

726. Cycas plant in appearance resembles :

 
 
 
 

727. Pasteur is famous for his:

 
 
 
 

728. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

730. Citrus canker is caused by:

 
 
 
 

731. In moss, calyptra is formed from:

 
 
 
 

732. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

734. Fruits are not found in:

 
 
 
 

735. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. The ferns are usually found:

 
 
 
 

739. Fern prothallus is:

 
 
 
 

740. One of the distinctive feature of Spirogyra is :

 
 
 
 

741. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

743. Cycas revoluta is widely grown as :

 
 
 
 

744. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

746. Most primitive group of vascular plants are:

 
 
 
 

747. Leaf spot of groundnut is caused by :

 
 
 
 

748. The chromosomal number in:

 
 
 
 

749. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

751. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

753. Photoautotrophic bacteria have:

 
 
 
 

754. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Which class of Protozoa includes all parasitic forms?

 
 
 
 

758. In moss, sporophyte is formed on:

 
 
 
 

759. 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:

 
 
 
 

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

 
 
 
 

761. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

762. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

763. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

765. 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:

 
 
 
 

766. Pneumonia is caused by:

 
 
 
 

767. Bacteriophages have been used as:

 
 
 
 

768. The most important property of yeast is:

 
 
 
 

769. Protistan algae obtain their food as:

 
 
 
 

770. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

772. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

774. Lichen show :

 
 
 
 

775. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

776. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

778. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

782. Funaria are commonly found :

 
 
 
 

783. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

785. The upper region of moss capsule is :

 
 
 
 

786. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

791. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

792. Which of the following is true for viruses?

 
 
 
 

793. Spores of which plants have chloroplast:

 
 
 
 

794. The sori in Dryopteris are found on:

 
 
 
 

795. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

797. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

799. LSD is:

 
 
 
 

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

 
 
 
 

801. Which causes red tide?

 
 
 
 

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

 
 
 
 

803. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

810. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

812. Bacteriophage consists of:

 
 
 
 

813. In Selaginella, the microsporangia are:

 
 
 
 

814. Green plants are classified as :

 
 
 
 

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

 
 
 
 

816. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

818. In angiosperms double fertilization represents:

 
 
 
 

819. In Cycas microsporangia are borne on:

 
 
 
 

820. Lichens are the indicator of pollution :

 
 
 
 

821. Desired type of Cycas can be grown by:

 
 
 
 

822. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

825. The spur of Pinus roxburghii has :

 
 
 
 

826. Saccharomyces is well known for:

 
 
 
 

827. Liverworts are included in :

 
 
 
 

828. Cleavage polyembryony is found in :

 
 
 
 

829. The leaves of Funaria are :

 
 
 
 

830. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

832. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

836. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. Lichens show :

 
 
 
 

840. All protozoans possess:

 
 
 
 

841. What is special feature of fern archegonia?

 
 
 
 

842. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

844. Pollination drop is:

 
 
 
 

845. How a fern differs from a moss?

 
 
 
 

846. Sleeping sickness disease in man is caused by:

 
 
 
 

847. Which is not true for Escherichia coli?

 
 
 
 

848. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

850. Red rot of sugarcane is caused by:

 
 
 
 

851. Most resistant spore in bacteria is:

 
 
 
 

852. The central part of Funaria axis is :

 
 
 
 

853. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

855. 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?

 
 
 
 

856. Sporophyte of fern is:

 
 
 
 

857. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

859. Pinus gerardiana is :

 
 
 
 

860. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. The source of litmus is :

 
 
 
 

864. Antibiotic has been extracted from :