Quiz_Random

1. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Pollination in Cycas takes place by :

 
 
 
 

6. Most of the lichens are composed of :

 
 
 
 

7. Which lichen is called Reindeer moss?

 
 
 
 

8. Lichen show :

 
 
 
 

9. Amoeba is a member of the phylum:

 
 
 
 

10. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

12. The ascus of yeast contains:

 
 
 
 

13. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. Zoogametes are not found in:

 
 
 
 

17. The disease symptom necrosis refers to :

 
 
 
 

18. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

20. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Diphtheria is caused by:

 
 
 
 

25. 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?

 
 
 
 

26. John Hutchinson divided dicots into two divisions:

 
 
 
 

27. Ovules are not found enclosed in ovary in :

 
 
 
 

28. Heterospory is the production of:

 
 
 
 

29. Water-borne bacterial diseases are:

 
 
 
 

30. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

32. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Fruits are not found in:

 
 
 
 

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

 
 
 
 

38. Sexual reproduction in Rhizopus is by:

 
 
 
 

39. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

41. Funaria are commonly found :

 
 
 
 

42. Fairy ring is the name given to:

 
 
 
 

43. Penicillin is obtained from:

 
 
 
 

44. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Viruses have:

 
 
 
 

50. Discovery of penicillin was based on:

 
 
 
 

51. Gram stain is used to:

 
 
 
 

52. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

54. Which among the following is a shrub?

 
 
 
 

55. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Photosynthetic protists belong to:

 
 
 
 

59. Iodine is obtained from:

 
 
 
 

60. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

62. Which statement is wrong in regard to bacteria?

 
 
 
 

63. Which of the following is a monocot?

 
 
 
 

64. Placenta in fern is:

 
 
 
 

65. Sexual reproduction of lichen is due to :

 
 
 
 

66. Bacteria were first discovered by:

 
 
 
 

67. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Embryo formation is not known in :

 
 
 
 

72. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. How is moss different from fern?

 
 
 
 

77. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. Pasteurization of milk involves heating for:

 
 
 
 

81. Mycoplasma contains:

 
 
 
 

82. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

83. In moss, reduction division occurs in :

 
 
 
 

84. The chief characteristic of class Ascomycetes is:

 
 
 
 

85. The word “sea weeds” is used for:

 
 
 
 

86. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. The largest alga is:

 
 
 
 

90. Pollination drop is:

 
 
 
 

91. The DNA of E coli is:

 
 
 
 

92. Ergot is obtained from :

 
 
 
 

93. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

95. Which is absent from the xylem of Cycas?

 
 
 
 

96. Citrus canker is caused by:

 
 
 
 

97. The chromosomal number in:

 
 
 
 

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

 
 
 
 

99. Embryophyta includes :

 
 
 
 

100. Fruiting body of lichens is :

 
 
 
 

101. Rhizophore of Selaginella is:

 
 
 
 

102. Which of the following does not contain chlorophyll?

 
 
 
 

103. Pinus is:

 
 
 
 

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

 
 
 
 

105. The upper region of moss capsule is :

 
 
 
 

106. Seeds are characteristically found in :

 
 
 
 

107. Ovules are not found enclosed in ovary in :

 
 
 
 

108. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Polystelic condition is found in:

 
 
 
 

113. The similarity between cyanobacteria and bacteria:

 
 
 
 

114. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. Redness of red sea is due to :

 
 
 
 

120. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

122. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

125. Bacteriophage consists of:

 
 
 
 

126. Roots are absent in :

 
 
 
 

127. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

128. Siphonogamy is found in:

 
 
 
 

129. In Herpes virus DNA is:

 
 
 
 

130. Methanogens belong to:

 
 
 
 

131. Absorptive nutrition is:

 
 
 
 

132. In moss, calyptra is formed from:

 
 
 
 

133. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. The development of sporangium in Selaginella is:

 
 
 
 

139. Woody climbers are known as :

 
 
 
 

140. Longest known virus is:

 
 
 
 

141. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

144. The gametophyte of fern is as:

 
 
 
 

145.

146. Ginkgo biloba is a:

 
 
 
 

147. Fern prothallus is:

 
 
 
 

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

 
 
 
 

149. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

153. Usually, bacteria reproduce by:

 
 
 
 

154. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

155. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

156. Which is a fungicide?

 
 
 
 

157. The order generally ends with:

 
 
 
 

158. Which of the following is a parasitic algae?

 
 
 
 

159. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

161. The truncated cone of HIV consists of:

 
 
 
 

162. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

167. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

171. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

172. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

174. The vascular bundles of Cycas stem are :

 
 
 
 

175. Cycas is similar to a mustard plant :

 
 
 
 

176. Ergot of rye is caused by:

 
 
 
 

177. What is the role of nitrifying bacteria?

 
 
 
 

178. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

181. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

183. In Cycas:

 
 
 
 

184. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

186. Mycoplasma are sensitive to:

 
 
 
 

187. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

188. Yeast grows more rapidly in:

 
 
 
 

189. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

191. Facultative saprophyte is:

 
 
 
 

192. Club moss and Peat moss belong to:

 
 
 
 

193. The Rhizopus is:

 
 
 
 

194. The sporangiophores in Rhizopus are:

 
 
 
 

195. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

199. Nitrogen-fixing bacteria may be located:

 
 
 
 

200. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

202. Which of the following applies to Selaginella?

 
 
 
 

203. The mycelium of Rhizopus is:

 
 
 
 

204. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

206. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

208. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

210. Maximum diversity of life forms occurs in :

 
 
 
 

211. The leafy fern plant represents the:

 
 
 
 

212. Ovary is absent in:

 
 
 
 

213. 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:

 
 
 
 

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

 
 
 
 

215. The sexual reproductive organs in Rhizopus are:

 
 
 
 

216. Pseudomycelium is found in:

 
 
 
 

217. Which of the following have a prokaryotic cell?

 
 
 
 

218. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

221. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

223. In moss, stomata are found:

 
 
 
 

224. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

226. Which of the following is a heterosporous pteridophyte?

 
 
 
 

227. Which is the correct statement about Selaginella?

 
 
 
 

228. Tautonyms are illegitimate in:

 
 
 
 

229. The alga, Spirogyra are found in :

 
 
 
 

230. Streptomycin is obtained from:

 
 
 
 

231. Protozoans are considered animals because these are:

 
 
 
 

232. Agar-agar is obtained from:

 
 
 
 

233. Which is an exception to cell theory?

 
 
 
 

234. Nitrifying bacteria play an important role by converting:

 
 
 
 

235. Enteric bacteria are those bacteria that live:

 
 
 
 

236. Lichens are indicators of :

 
 
 
 

237. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

239. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

247. Germ theory of disease was proposed by:

 
 
 
 

248. The root nodules of leguminous plants contain:

 
 
 
 

249. Little leaf disease of Brinjal is caused by:

 
 
 
 

250. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

252. The megaspore of Selaginella on germination produces:

 
 
 
 

253. Heterotrichous habit means :

 
 
 
 

254. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

256. Ovary is absent in :

 
 
 
 

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

 
 
 
 

258. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

260. Funaria is :

 
 
 
 

261. Cryptogams include :

 
 
 
 

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

 
 
 
 

263. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

265. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

267. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

270. 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:

 
 
 
 

271. Sporophyte of fern is:

 
 
 
 

272. 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:

 
 
 
 

273. The microsporophylls on the cone of Cycas are :

 
 
 
 

274. The sporangia of Selaginella are attached:

 
 
 
 

275. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

283. 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:

 
 
 
 

284. The genetic material of poxvirus is:

 
 
 
 

285. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

290. Why is Cycas called a living fossil?

 
 
 
 

291. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

295. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

297. The megasporangium of Selaginella is:

 
 
 
 

298. Bacteria growing on synthetic medium are called:

 
 
 
 

299. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

302. Fern prothallus produces:

 
 
 
 

303. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

305. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

307. Which of the following is sago palm?

 
 
 
 

308. Bryophyta have been placed in cryptogams because:

 
 
 
 

309. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

311. Winged pollen grains are found in :

 
 
 
 

312. Select the wrong statement:

 
 
 
 

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

 
 
 
 

314. White rust of crucifers is caused by:

 
 
 
 

315. Fruits are not found in Cycas because:

 
 
 
 

316. The sori in Dryopteris are found on:

 
 
 
 

317. Pinus gerardiana is :

 
 
 
 

318. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

320. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

322. The Rhizopus gametes are formed in:

 
 
 
 

323. Linnaeus is credited with introducing:

 
 
 
 

324. The first to isolate a plant virus was:

 
 
 
 

325. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

328. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

333. The smallest bacterium is:

 
 
 
 

334. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

336. Endemic plants are characterised by their:

 
 
 
 

337. Which of the following statements is not correct?

 
 
 
 

338. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

340. The mode of nutrition of bacteria is usually:

 
 
 
 

341. Majority of lichens are :

 
 
 
 

342. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

344. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

349. The gametophyte produced by apospory is :

 
 
 
 

350. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

353. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

355. Which bacteria convert nitrate into nitrogen?

 
 
 
 

356.

357. Generic name of mango is:

 
 
 
 

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

 
 
 
 

359. In Cycas which structure is equivalent to stamen?

 
 
 
 

360. What is mycorrhiza?

 
 
 
 

361. Who discovered streptomycin?

 
 
 
 

362. Detailed study of bacteriophage was made by:

 
 
 
 

363. Typhoid in man is caused by:

 
 
 
 

364. All algae have:

 
 
 
 

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

 
 
 
 

366. Cycas is :

 
 
 
 

367. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

370. Black rust of wheat is caused by:

 
 
 
 

371. Meiosis in Ulothrix takes place:

 
 
 
 

372. 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?

 
 
 
 

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

 
 
 
 

374. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

377. Pythium debaryanum is the causative agent of:

 
 
 
 

378. Pythium debaryanum is the causative agent of:

 
 
 
 

379. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

382. Plasmids are:

 
 
 
 

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

 
 
 
 

384. Facultative parasite is:

 
 
 
 

385. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

390. Downy mildew disease is caused by :

 
 
 
 

391. Which class of Protozoa includes all parasitic forms?

 
 
 
 

392. Most of the algae are :

 
 
 
 

393. 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:

 
 
 
 

394. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

396. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

398. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

400. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

402. Choose the correct statement about Spirogyra:

 
 
 
 

403. Clostridium can:

 
 
 
 

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

 
 
 
 

405. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

406. Vegetative reproduction in Cycas is by means of :

 
 
 
 

407. In moss, peristomial teeth are:

 
 
 
 

408. Enzymes are absent in:

 
 
 
 

409. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

411. Which is not found in bacteria?

 
 
 
 

412. The tree fern is:

 
 
 
 

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

 
 
 
 

414. The most primitive vascular plants is:

 
 
 
 

415. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

419. Who named prion?

 
 
 
 

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

 
 
 
 

421. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

423. In tracheophyta:

 
 
 
 

424. Circular DNA is seen in:

 
 
 
 

425. E coli is a:

 
 
 
 

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

 
 
 
 

427. Most resistant spore in bacteria is:

 
 
 
 

428. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

432. Anoxygenic photosynthesis occurs in:

 
 
 
 

433. Which is not true for Escherichia coli?

 
 
 
 

434. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

436. Lichens show :

 
 
 
 

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

 
 
 
 

438. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

441. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

445. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

448. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. Milk is converted to curd by:

 
 
 
 

452. Most primitive kind of flower is represented by:

 
 
 
 

453. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

455. Climbers are found in genus:

 
 
 
 

456. Rice, pea, potato are :

 
 
 
 

457. Acellular slime mold is/are:

 
 
 
 

458. Cyanophage is a virus that attacks:

 
 
 
 

459. Special feature of pollen grains of Pinus is :

 
 
 
 

460. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

464. Most appropriate word for protozoans is:

 
 
 
 

465. In Pteris, the archegonia are present:

 
 
 
 

466. Vascular tissue is found in :

 
 
 
 

467. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

469. Antibiotics cure the disease by:

 
 
 
 

470. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

471. In moss, conducting tissue is made up of

 
 
 
 

472. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

474. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

476. Early blight of potato is caused by:

 
 
 
 

477. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

483. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

485. Mycoplasma was discovered by:

 
 
 
 

486. The zygospore in Rhizopus on germination forms:

 
 
 
 

487. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

489. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

491. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

494. Coenogamete is found in:

 
 
 
 

495. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

496. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

498. Red rot of sugarcane is caused by:

 
 
 
 

499. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

501. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

505. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

508. The seedless plants which possess vascular tissues are:

 
 
 
 

509. The source of litmus is :

 
 
 
 

510. Meristele of fern is:

 
 
 
 

511. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

513. The stele of Dryopteris is a:

 
 
 
 

514. Which of the following are included in Tracheophyta?

 
 
 
 

515. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

517. The development of Selaginella embryo is:

 
 
 
 

518. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

520. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

523. Most primitive embryophytes are placed in:

 
 
 
 

524. The coralloid roots are :

 
 
 
 

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

 
 
 
 

526. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

528. Smallpox is caused by:

 
 
 
 

529. LSD is:

 
 
 
 

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

 
 
 
 

531. Lichens form the first community in

 
 
 
 

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

 
 
 
 

533. Who among the following discovered virus?

 
 
 
 

534. Azolla growing in paddy fields helps in:

 
 
 
 

535. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

537. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

539. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. The antibiotic is obtained from:

 
 
 
 

544. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

546. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

548. How a fern differs from a moss?

 
 
 
 

549. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

551. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

553. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

557. The leaves of Funaria are :

 
 
 
 

558. Spermatophyta are characterized by producing:

 
 
 
 

559. Penicillin was discovered by:

 
 
 
 

560. Germination of the seed of Pinus is :

 
 
 
 

561. Cyathia is characterized by:

 
 
 
 

562. What is a vector?

 
 
 
 

563. Lichens reproduce by :

 
 
 
 

564. What are Cyanobacteria?

 
 
 
 

565.

566. Pasteurized milk is:

 
 
 
 

567. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

569. Winged seeds are found in :

 
 
 
 

570. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

572. 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:

 
 
 
 

573. The plants of Funaria grow :

 
 
 
 

574. Water-net is the name of:

 
 
 
 

575. Sometimes the bacterial cell is enclosed in:

 
 
 
 

576. Saccharomyces ludwigii ascus produces:

 
 
 
 

577. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

581. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

583. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

585. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

586. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

589. Standard size of a herbarium sheet is:

 
 
 
 

590. Some biologists have used the term Mycetozoa for:

 
 
 
 

591. An Hfr bacterium is one that contains:

 
 
 
 

592. Pollination in Pinus is :

 
 
 
 

593. Rhizopus and yeast are usually:

 
 
 
 

594. Number of capsomeres forming capsid of TMV is:

 
 
 
 

595. Bivalved siliceous shell or frustule occur in:

 
 
 
 

596. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

598. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

600. The spermatozoids of Cycas are :

 
 
 
 

601. The gametophyte of moss has distinct phases :

 
 
 
 

602. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

606. Cycas plant in appearance resembles :

 
 
 
 

607. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. NBG of Lucknow is now named as:

 
 
 
 

611. Most common type of conjugation in Spirogyra is :

 
 
 
 

612. What is streptomycin?

 
 
 
 

613. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

617. Spirogyra represents the :

 
 
 
 

618. Antibiotic has been extracted from :

 
 
 
 

619. 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?

 
 
 
 

620. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

622. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

628. In Selaginella, the microsporangia are:

 
 
 
 

629.

 

630. Sporophyte of Funaria is :

 
 
 
 

631. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

633. The chloroplast in Ulothrix is :

 
 
 
 

634. The lichens growing on rocks are called :

 
 
 
 

635. Saccharomyces is used in:

 
 
 
 

636. Which fixes atmospheric nitrogen?

 
 
 
 

637. The leaf of Cycas shows:

 
 
 
 

638. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

641. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

646. Which is a tautonym?

 
 
 
 

647. Selaginella differs from Moss in having:

 
 
 
 

648. Yeast belongs to class:

 
 
 
 

649. A gill of Agaricus:

 
 
 
 

650. Which is a gametophytic tissue?

 
 
 
 

651. The fungi are usually:

 
 
 
 

652. Smut of maize is caused by :

 
 
 
 

653. The disease apple scab is caused by:

 
 
 
 

654. The fern plant is:

 
 
 
 

655. Simple polyembryony is found in :

 
 
 
 

656. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

670. The fungi used as food are:

 
 
 
 

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

 
 
 
 

672. Which of the following are absent in Mycoplasma?

 
 
 
 

673. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

676. Virion refers to:

 
 
 
 

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

 
 
 
 

678. Seeds are characteristically found in:

 
 
 
 

679. In Gymnosperms endosperm is a:

 
 
 
 

680. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

682. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

684. In Gymnocarpeae the fruiting body is :

 
 
 
 

685. Pinus microsporophyll bears:

 
 
 
 

686. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

688. The fungi that grow on wood are called:

 
 
 
 

689. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

691. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

694. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

697. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

701. 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?

 
 
 
 

702. Funaria is :

 
 
 
 

703. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

704. Banana bunchy top is caused by :

 
 
 
 

705. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

711. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

717. The roots of Cycas are :

 
 
 
 

718. The prothallus of fern is:

 
 
 
 

719. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

721. Pteridophyta are also called:

 
 
 
 

722. Vascular cryptogam is the term used for :

 
 
 
 

723. Rhizopus belongs to:

 
 
 
 

724. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

727. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

732. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

735. Most primitive group of vascular plants are:

 
 
 
 

736. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

738. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

743. Wine turns sour because of:

 
 
 
 

744. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

746. What are plasmids?

 
 
 
 

747. Isomorphic type alternation of generation is found in:

 
 
 
 

748. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

750. Saccharomyces is well known for:

 
 
 
 

751. The leaves of Funaria are :

 
 
 
 

752. The prothallus of fern represents the plant:

 
 
 
 

753. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

755. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

757. Cellular slime mold is:

 
 
 
 

758. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

760. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

763. The two conjugating gametangia of Rhizopus are:

 
 
 
 

764. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

766. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

770. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

772. The archegonia of Selaginella are differentiated by:

 
 
 
 

773. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

775. Who discovered heterothallism in fungi?

 
 
 
 

776. What is absent in Deuteromycetes?

 
 
 
 

777. Which is the nuclear material in bacteria?

 
 
 
 

778. The orders generally have the uniform endings:

 
 
 
 

779. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

781. Transfusion tissue is present in the leaflet of:

 
 
 
 

782. Psilotum is:

 
 
 
 

783. In Pteris, the roots are:

 
 
 
 

784. The photosynthetic protists are:

 
 
 
 

785. Male gametophyte of Selaginella is found:

 
 
 
 

786. Late blight of potato is caused by:

 
 
 
 

787. First animal pathogenic virus was discovered by:

 
 
 
 

788. In Funaria :

 
 
 
 

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

 
 
 
 

790. Protistan algae obtain their food as:

 
 
 
 

791. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

792. Embryophyta includes:

 
 
 
 

793. Interferon is a:

 
 
 
 

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

 
 
 
 

795. Cycas is:

 
 
 
 

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

 
 
 
 

797. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

799. The lambda phase is a:

 
 
 
 

800. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

802. To which country Antony van Leeuwenhoek belong?

 
 
 
 

803. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. Synzoospore is produced in:

 
 
 
 

808. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

810. The spur of Pinus roxburghii has :

 
 
 
 

811. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

814. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

817. Water bloom is generally caused by :

 
 
 
 

818. Yeast is a source of:

 
 
 
 

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

 
 
 
 

820. Oswald Tippo’s classification was based on :

 
 
 
 

821. Metulae are found in:

 
 
 
 

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

 
 
 
 

823. In dinoflagellates, the two flagella are:

 
 
 
 

824. All protozoans possess:

 
 
 
 

825. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

827. Select the wrong statement:

 
 
 
 

828. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

831. Leprosy is caused by:

 
 
 
 

832. Reserve food in Euglena is:

 
 
 
 

833. An alga which is rich in proteins:

 
 
 
 

834. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

836. Red rot of sugarcane is caused by :

 
 
 
 

837. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

840. Which causes red tide?

 
 
 
 

841. Reproduction in Rhizopus is:

 
 
 
 

842. The antherozoids of Funaria are :

 
 
 
 

843. Some diseases caused by bacteria are:

 
 
 
 

844. Late blight of potato is caused by :

 
 
 
 

845. Helotism word is used for the symbiosis between :

 
 
 
 

846. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

848. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

850. Green plants are classified as:

 
 
 
 

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

 
 
 
 

852. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

854. Green plants are classified as :

 
 
 
 

855. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

858. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

861. Bacteria are placed under:

 
 
 
 

862. Which is an edible fungus?

 
 
 
 

863. Fern phloem lacks:

 
 
 
 

864. Which of the following statement is correct?