Quiz_Random

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

 
 
 
 

2. The root nodules of leguminous plants contain:

 
 
 
 

3. Saccharomyces ludwigii ascus produces:

 
 
 
 

4. Gram stain is used to:

 
 
 
 

5. In Cycas the fertilization is:

 
 
 
 

6. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

9. Ovules are not found enclosed in ovary in :

 
 
 
 

10. Discovery of penicillin was based on:

 
 
 
 

11. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. The central part of Funaria axis is :

 
 
 
 

15. What is streptomycin?

 
 
 
 

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

 
 
 
 

17. The mode of nutrition of bacteria is usually:

 
 
 
 

18. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Fern prothallus is:

 
 
 
 

22. What is the role of nitrifying bacteria?

 
 
 
 

23. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

25. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

27. The tree fern is:

 
 
 
 

28. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

30. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. White rust of crucifers is caused by:

 
 
 
 

34. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. The word “sea weeds” is used for:

 
 
 
 

44. 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:

 
 
 
 

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

 
 
 
 

46. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

48. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

50. The rhizoids of Funaria are :

 
 
 
 

51. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. The DNA of E coli is:

 
 
 
 

57. The gametophyte of fern bears:

 
 
 
 

58.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

62. Ectocarpus produces:

 
 
 
 

63. Cycas revoluta is widely grown as :

 
 
 
 

64. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

65. Virus and bacteriophage are made-up of:

 
 
 
 

66. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

68. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

70. Which group of algae have an incipient nucleus?

 
 
 
 

71. Each chloroplast in Spirogyra bears :

 
 
 
 

72. The gametophyte produced by apospory is :

 
 
 
 

73. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Which of the following is true for viruses?

 
 
 
 

82. Longest known virus is:

 
 
 
 

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

 
 
 
 

84. Lichens are indicators of :

 
 
 
 

85. Special feature of pollen grains of Pinus is :

 
 
 
 

86. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

87. The spur of Pinus roxburghii has :

 
 
 
 

88. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

90. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

93. Green plants are classified as :

 
 
 
 

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

 
 
 
 

95. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

97. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

99. Water bloom is generally caused by :

 
 
 
 

100. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

103. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

105. Chemosynthetic bacteria are:

 
 
 
 

106. Saccharomyces is used in:

 
 
 
 

107. Majority of lichens are :

 
 
 
 

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

 
 
 
 

109. Pollination in Cycas takes place by :

 
 
 
 

110. Cycas is similar to a mustard plant :

 
 
 
 

111. Fruits are not found in Cycas because:

 
 
 
 

112. In Funaria, calyptra is derived from :

 
 
 
 

113. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

117. 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:

 
 
 
 

118. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

120. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

122. Lichen show :

 
 
 
 

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

 
 
 
 

124. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

125. Most primitive group of vascular plants are:

 
 
 
 

126. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

130. Which of the following statements is not correct?

 
 
 
 

131. The disease apple scab is caused by:

 
 
 
 

132. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

135. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

136. All algae have:

 
 
 
 

137. Heterotrichous habit means :

 
 
 
 

138. Green plants are classified as:

 
 
 
 

139. Streptomycin is obtained from:

 
 
 
 

140. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

142. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

144. Water-net is the name of:

 
 
 
 

145. Ulothrix produces :

 
 
 
 

146. Banana bunchy top is caused by :

 
 
 
 

147. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

151. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

153. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

155. Psilotum is:

 
 
 
 

156. Nannandria are:

 
 
 
 

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

 
 
 
 

158. The sporangium of fern contains nearly:

 
 
 
 

159. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

161. Most of the algae are :

 
 
 
 

162. Fern prothallus produces:

 
 
 
 

163. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

164. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

169. Which is a tautonym?

 
 
 
 

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

 
 
 
 

171. The archegonia in Selaginella develop on:

 
 
 
 

172. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

174. Penicillin was discovered by:

 
 
 
 

175. Spermatophyta are characterized by producing:

 
 
 
 

176. The largest alga is:

 
 
 
 

177. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

179. Yeast belongs to class:

 
 
 
 

180. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

182. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

187. Which causes red tide?

 
 
 
 

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

 
 
 
 

189. 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:

 
 
 
 

190. Lichens form the first community in

 
 
 
 

191. Tautonyms are illegitimate in:

 
 
 
 

192. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

194. Which is a gametophytic tissue?

 
 
 
 

195. True sexuality is not found in:

 
 
 
 

196. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

198. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

201. To which country Antony van Leeuwenhoek belong?

 
 
 
 

202. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

204. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

206. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

208. The chromosomal number in:

 
 
 
 

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

 
 
 
 

210. Cycas is :

 
 
 
 

211. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

213. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

215. Cellular slime mold is:

 
 
 
 

216. Pythium debaryanum is the causative agent of:

 
 
 
 

217. Virion refers to:

 
 
 
 

218. Metulae are found in:

 
 
 
 

219. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

221. All protozoans possess:

 
 
 
 

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

 
 
 
 

223. Male gametes in Dryopteris are:

 
 
 
 

224. Pteridophytes are also known as :

 
 
 
 

225. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

230. Plasmids are:

 
 
 
 

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

 
 
 
 

232. The roots of Cycas are :

 
 
 
 

233. Pinus is:

 
 
 
 

234. Select the wrong statement:

 
 
 
 

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

 
 
 
 

236. What is special feature of fern archegonia?

 
 
 
 

237. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

239. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

243. Seeds are characteristically found in:

 
 
 
 

244. Which of the following is sago palm?

 
 
 
 

245. Asexual reproductive body of Volvox is called:

 
 
 
 

246. Viruses are considered to be:

 
 
 
 

247. Viruses have:

 
 
 
 

248. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

250. Chief constituents of bordeaux mixture are :

 
 
 
 

251. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

253. All archaebacteria lack:

 
 
 
 

254. Economic importance of bacteria lies in their being:

 
 
 
 

255. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

258. Fruits are not found in:

 
 
 
 

259. Vascular cryptogams is the term used for:

 
 
 
 

260. Mycoplasma are:

 
 
 
 

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

 
 
 
 

262. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

265. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

266. Red rot of sugarcane is caused by :

 
 
 
 

267. Isomorphic type alternation of generation is found in:

 
 
 
 

268. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

270. Spirogyra represents the :

 
 
 
 

271. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

273. Lichens are ecologically important because :

 
 
 
 

274. The chief characteristic of class Ascomycetes is:

 
 
 
 

275. Meristele of fern is:

 
 
 
 

276. Which of the following are included in Tracheophyta?

 
 
 
 

277. The two conjugating gametangia of Rhizopus are:

 
 
 
 

278. Which fixes atmospheric nitrogen?

 
 
 
 

279. A gill of Agaricus:

 
 
 
 

280. Mixed cropping helps :

 
 
 
 

281. Who discovered cyanophages?

 
 
 
 

282. Which condition is found in Cycas?

 
 
 
 

283. Among the algae kelps are :

 
 
 
 

284. Reserve food in Euglena is:

 
 
 
 

285. Leaf spot of groundnut is caused by :

 
 
 
 

286. Most primitive embryophytes are placed in:

 
 
 
 

287. Spores of which plants have chloroplast:

 
 
 
 

288. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

290. Bivalved siliceous shell or frustule occur in:

 
 
 
 

291. Red rot of sugarcane is caused by:

 
 
 
 

292. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

294. Vascular tissue is found in :

 
 
 
 

295. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

297. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

302. How is moss different from fern?

 
 
 
 

303. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

305. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

306. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

308. E coli is a:

 
 
 
 

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

 
 
 
 

310. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

312. Liverworts are included in :

 
 
 
 

313. The Rhizopus is:

 
 
 
 

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

 
 
 
 

315. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

317. In Funaria :

 
 
 
 

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

 
 
 
 

319. Placenta in fern is:

 
 
 
 

320. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

322. Club moss and Peat moss belong to:

 
 
 
 

323. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

325. Azolla growing in paddy fields helps in:

 
 
 
 

326. The ferns are usually found:

 
 
 
 

327. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

331. What is absent in Deuteromycetes?

 
 
 
 

332. The fungi are mostly:

 
 
 
 

333. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. The coralloid roots are :

 
 
 
 

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

 
 
 
 

338. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

340. The leaf of Cycas shows:

 
 
 
 

341. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

343. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

345. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

353. Funaria are commonly found :

 
 
 
 

354. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

358. Genetic material of TMV is:

 
 
 
 

359. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

362. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

364. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

366. Bacteriophages have been used as:

 
 
 
 

367. Which bacteria convert nitrate into nitrogen?

 
 
 
 

368. The photosynthetic protists are:

 
 
 
 

369. Indusium in Dryopteris is:

 
 
 
 

370. Infective part of virus was discovered by:

 
 
 
 

371. The fungi used as food are:

 
 
 
 

372. Cycas is different from mango in :

 
 
 
 

373. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

375. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

377. Pneumonia is caused by:

 
 
 
 

378. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

380. Facultative parasite is:

 
 
 
 

381. Most common type of conjugation in Spirogyra is :

 
 
 
 

382. Diphtheria is caused by:

 
 
 
 

383. The leaves of Funaria are :

 
 
 
 

384. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

386. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

388. Late blight of potato is caused by :

 
 
 
 

389. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

391. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

393. Who discovered streptomycin?

 
 
 
 

394. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

397. Lichens are the indicator of pollution :

 
 
 
 

398. Funaria can be differentiated from Cycas :

 
 
 
 

399. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

401. The most important property of yeast is:

 
 
 
 

402. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

404. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

406. Embryophyta includes :

 
 
 
 

407. 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:

 
 
 
 

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

 
 
 
 

409. Which lichen is called Reindeer moss?

 
 
 
 

410. Heterocysts are found in :

 
 
 
 

411. What is a vector?

 
 
 
 

412. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

415. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

417. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. Smallpox is caused by:

 
 
 
 

421. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

426. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

428. Where does meiosis occur in yeast?

 
 
 
 

429. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

431. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

435. Which is an exception to cell theory?

 
 
 
 

436. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

437. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

439. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

441. The order generally ends with:

 
 
 
 

442. The flagella of Chlamydomonas are:

 
 
 
 

443. The term stele was given by:

 
 
 
 

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

 
 
 
 

445. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

447. 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?

 
 
 
 

448. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. Generic name of mango is:

 
 
 
 

452. Reproduction in Rhizopus is:

 
 
 
 

453. Red rot of sugarcane is caused by :

 
 
 
 

454. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

457. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. Ethylene oxide is widely used to:

 
 
 
 

463. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

467. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

469. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

471. Bacteria were first discovered by:

 
 
 
 

472. Simple polyembryony is found in :

 
 
 
 

473. The megaspore of Selaginella on germination produces:

 
 
 
 

474. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

476. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. Selaginella differs from Moss in having:

 
 
 
 

481. Late blight of potato is caused by:

 
 
 
 

482. Sleeping sickness disease in man is caused by:

 
 
 
 

483. The vascular bundles of Cycas stem are :

 
 
 
 

484. The role of meiosis is for:

 
 
 
 

485. Clostridium can:

 
 
 
 

486. Oswald Tippo’s classification is:

 
 
 
 

487. In moss, stomata are found:

 
 
 
 

488. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

490. Which of the following is a parasitic algae?

 
 
 
 

491. The lambda phase is a:

 
 
 
 

492. Spermatophyta are characterized by producing:

 
 
 
 

493. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

495. Enzymes are absent in:

 
 
 
 

496. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

500. Germ theory of disease was proposed by:

 
 
 
 

501. The development of Selaginella embryo is:

 
 
 
 

502. Which is absent from the xylem of Cycas?

 
 
 
 

503. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Which have the largest antherozoid?

 
 
 
 

507. In tracheophyta:

 
 
 
 

508. Interferon is a:

 
 
 
 

509. The similarity between cyanobacteria and bacteria:

 
 
 
 

510.

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

 
 
 
 

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

 
 
 
 

513. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

516. Citrus canker is caused by:

 
 
 
 

517. Multicellular and jacketed sex organs are found in :

 
 
 
 

518. In Gymnocarpeae the fruiting body is :

 
 
 
 

519. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

521. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

523. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

525. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

527. Woody climbers are known as :

 
 
 
 

528. Fern phloem lacks:

 
 
 
 

529. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. Amoeba is a member of the phylum:

 
 
 
 

533. Funaria is :

 
 
 
 

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

 
 
 
 

535. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

539. In a diplontic life cycle:

 
 
 
 

540. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

542. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

546. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Protists which are diploid reproduce sexually by:

 
 
 
 

550. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

552. Chemosynthetic bacteria are:

 
 
 
 

553. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

556. The prothallus of fern represents the plant:

 
 
 
 

557. The development of sporangium in Selaginella is:

 
 
 
 

558. Funaria is :

 
 
 
 

559. Select the wrong statement:

 
 
 
 

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

 
 
 
 

561. Sporophyte of Funaria is :

 
 
 
 

562. Yeast is a source of:

 
 
 
 

563. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

565. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

569. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

571. . Tapetum develops in:

 
 
 
 

572. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

574. Antibiotic has been extracted from :

 
 
 
 

575. Gametophyte is the main plant body in :

 
 
 
 

576. Which of the following have a prokaryotic cell?

 
 
 
 

577. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

580. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

582. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

585. Bryophyta have a special character from other plants:

 
 
 
 

586. Ovules are not found enclosed in ovary in :

 
 
 
 

587. Most appropriate word for protozoans is:

 
 
 
 

588. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

590. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

593. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

595. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

597. Pythium debaryanum is the causative agent of:

 
 
 
 

598. In Pteris, the archegonia are present:

 
 
 
 

599. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. Pollination in Pinus is :

 
 
 
 

603. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

606. LSD is:

 
 
 
 

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

 
 
 
 

608. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

610. The seedless plants which possess vascular tissues are:

 
 
 
 

611. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

613. Small epidermal swellings due to infection are called :

 
 
 
 

614. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

616. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

622. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

625. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

627. Linnaeus is credited with introducing:

 
 
 
 

628. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

631. Siphonogamy is found in:

 
 
 
 

632. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

637. Absorptive nutrition is:

 
 
 
 

638.

 

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

 
 
 
 

640. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

642. Pteridophyta are also called:

 
 
 
 

643. Desired type of Cycas can be grown by:

 
 
 
 

644. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

647. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

650. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

654. Choose the correct statement about Spirogyra:

 
 
 
 

655. An Hfr bacterium is one that contains:

 
 
 
 

656. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

658. Heterosporous pteridophytes always form:

 
 
 
 

659. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

661. Quarantine regulations are concerned with:

 
 
 
 

662. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

665. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

669. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. The sporophyte of Riccia is represented by :

 
 
 
 

673. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

676. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

678. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

680. The source of litmus is :

 
 
 
 

681. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

684. Embryophyta includes:

 
 
 
 

685. Lichens are pioneers of vegetation in a :

 
 
 
 

686. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

688. In moss, calyptra is formed from:

 
 
 
 

689. Heterospory is the production of:

 
 
 
 

690. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

691. Rhizophore of Selaginella is:

 
 
 
 

692. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

694. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

696. The genetic material of poxvirus is:

 
 
 
 

697. Fairy ring is the name given to:

 
 
 
 

698. The prothallus of fern is:

 
 
 
 

699. Which of the following is a monocot?

 
 
 
 

700. Which part of Riccia bears nurse cells?

 
 
 
 

701. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

704. Rhizoids of Riccia are :

 
 
 
 

705. Roots are absent in :

 
 
 
 

706. In Cycas which structure is equivalent to stamen?

 
 
 
 

707. 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?

 
 
 
 

708. Which of the following does not contain chlorophyll?

 
 
 
 

709. Cleavage polyembryony is found in :

 
 
 
 

710. Meiosis in Ulothrix takes place:

 
 
 
 

711. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. Methanogens belong to:

 
 
 
 

715. Photosynthetic bacteria have:

 
 
 
 

716. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

718. Most primitive kind of flower is represented by:

 
 
 
 

719. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

721. Leprosy is caused by:

 
 
 
 

722. Redness of red sea is due to :

 
 
 
 

723. Usually, bacteria reproduce by:

 
 
 
 

724. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

726. Mucilaginous canals in Cycas are found in :

 
 
 
 

727. 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?

 
 
 
 

728. In Cycas microsporangia are borne on:

 
 
 
 

729. Which one of the following statement is wrong?

 
 
 
 

730. Which of the following lichens is harmful?

 
 
 
 

731. Bacteria are placed under:

 
 
 
 

732. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

735. Wine turns sour because of:

 
 
 
 

736. The tallest moss in the world is :

 
 
 
 

737. 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:

 
 
 
 

738. The nucleus of bacteria is:

 
 
 
 

739. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

740. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

742. Disease resistant plant varieties can be produced by :

 
 
 
 

743. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

746. Botulism is a:

 
 
 
 

747. The chloroplast of Chlamydomonas are:

 
 
 
 

748. Which of the following have algal zone?

 
 
 
 

749. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

751. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

759. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

761. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

763. In binomial system most of the words are:

 
 
 
 

764. Cycas is:

 
 
 
 

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

 
 
 
 

766. Photosynthetic protists belong to:

 
 
 
 

767. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

769. The phloem of vascular system of Cycas is :

 
 
 
 

770. Nitrifying bacteria play an important role by converting:

 
 
 
 

771. Fertility of the soil is increased by:

 
 
 
 

772. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

776. Which is a redwood tree?

 
 
 
 

777. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

780. Nitrogen-fixing bacteria may be located:

 
 
 
 

781. Some bacteria cannot be killed easily because of:

 
 
 
 

782. Cyathia is characterized by:

 
 
 
 

783. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

785. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

787. Penicillin is obtained from:

 
 
 
 

788.

789. Pollination drop is:

 
 
 
 

790. Number of capsomeres forming capsid of TMV is:

 
 
 
 

791. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

793. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

798. The teeth of peristome of Funaria are :

 
 
 
 

799. Acetobacter is useful in:

 
 
 
 

800. The sori in Dryopteris are found on:

 
 
 
 

801. Helotism word is used for the symbiosis between :

 
 
 
 

802. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

804. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

805. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

807. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

811. Select the correct statement: (NEET 2016)

 
 
 
 

812. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

814. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

815. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

818. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

820. Lichens show :

 
 
 
 

821. Saccharomyces is well known for:

 
 
 
 

822. Ovary is absent in:

 
 
 
 

823. 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?

 
 
 
 

824. Who discovered heterothallism in fungi?

 
 
 
 

825. Facultative saprophyte is:

 
 
 
 

826. Vegetative reproduction in Cycas is by means of :

 
 
 
 

827. Total parasites belong to:

 
 
 
 

828. The lichens growing on rocks are called :

 
 
 
 

829. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

837. Mycoplasma contains:

 
 
 
 

838. Fruits are not found in :

 
 
 
 

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

 
 
 
 

840. The smallest bacterium is:

 
 
 
 

841. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

845. Downy mildew disease is caused by :

 
 
 
 

846. Polystelic condition is found in:

 
 
 
 

847. The plants of Funaria grow :

 
 
 
 

848. Which of the following is true for Selaginella?

 
 
 
 

849. The chloroplast in Ulothrix is :

 
 
 
 

850. The Rhizopus gametes are formed in:

 
 
 
 

851. 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:

 
 
 
 

852. In moss, conducting tissue is made up of

 
 
 
 

853. Yeast grows more rapidly in:

 
 
 
 

854. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

856. Halophiles are the bacteria that require for growth:

 
 
 
 

857. The megasporangium of Selaginella is:

 
 
 
 

858. Some biologists have used the term Mycetozoa for:

 
 
 
 

859. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

861. Bentham and Hooker placed gymnosperms:

 
 
 
 

862. The spermatozoids of Cycas are :

 
 
 
 

863. The ascus of yeast contains:

 
 
 
 

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