Quiz_Random

1. Which is a tautonym?

 
 
 
 

2. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Wine turns sour because of:

 
 
 
 

6. Fairy ring is the name given to:

 
 
 
 

7. The antibiotic is obtained from:

 
 
 
 

8. Gymnosperms could also be called as:

 
 
 
 

9. Bacteria differ from viruses in being sensitive to:

 
 
 
 

10. What is a vector?

 
 
 
 

11. In Cycas:

 
 
 
 

12. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Citrus canker is caused by:

 
 
 
 

18. Late blight of potato is caused by:

 
 
 
 

19. To which country Antony van Leeuwenhoek belong?

 
 
 
 

20. The similarity between cyanobacteria and bacteria:

 
 
 
 

21. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

23. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. The genetic material of poxvirus is:

 
 
 
 

28. Plasmids are:

 
 
 
 

29. The photosynthetic protists are:

 
 
 
 

30. Yeast belongs to class:

 
 
 
 

31. In Funaria :

 
 
 
 

32. The ascus of yeast contains:

 
 
 
 

33. Roots are absent in :

 
 
 
 

34. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. Heterocysts are found in :

 
 
 
 

38. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

40. Black rust of wheat is caused by:

 
 
 
 

41. Pteridophytes are also known as :

 
 
 
 

42. Winged seeds are found in :

 
 
 
 

43. Bacteria are considered to be plants because they:

 
 
 
 

44. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. In moss, sporophyte is formed on:

 
 
 
 

51. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

52. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

55. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Which of the following statements is not correct?

 
 
 
 

59. In dinoflagellates, the two flagella are:

 
 
 
 

60. Which of the following is a heterosporous pteridophyte?

 
 
 
 

61. Which is not found in bacteria?

 
 
 
 

62. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

64. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. The young leaves of Cycas have :

 
 
 
 

68. Heterospory is the production of:

 
 
 
 

69. Which of the following statement is correct?

 
 
 
 

70. The teeth of peristome of Funaria are :

 
 
 
 

71. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

73. Woody climbers are known as :

 
 
 
 

74. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. The alga, Spirogyra are found in :

 
 
 
 

79. Which one of the following is a monocot?

 
 
 
 

80. Fern plants are:

 
 
 
 

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

 
 
 
 

82. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Downy mildew disease is caused by :

 
 
 
 

86. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. The most primitive vascular plants is:

 
 
 
 

90. Lichen show :

 
 
 
 

91. Most primitive embryophytes are placed in :

 
 
 
 

92. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

94. Yeast is a source of:

 
 
 
 

95. Cycas is:

 
 
 
 

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

 
 
 
 

97. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

100. Which is a fungicide?

 
 
 
 

101. 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:

 
 
 
 

102. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

104. The megasporangium of Selaginella is:

 
 
 
 

105. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

107. Tautonyms are illegitimate in:

 
 
 
 

108. Liverworts are included in :

 
 
 
 

109. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

114. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. A gill of Agaricus:

 
 
 
 

123. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

125. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

127. Siphonogamy is found in:

 
 
 
 

128. Little leaf disease of Brinjal is caused by:

 
 
 
 

129. Lichens form the first community in

 
 
 
 

130. Late blight of potato is caused by :

 
 
 
 

131.

 

132. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

133. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

135. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

137. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

139. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

141. Gram stain is used to:

 
 
 
 

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

 
 
 
 

143. Iodine is obtained from:

 
 
 
 

144. Some diseases caused by bacteria are:

 
 
 
 

145. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

146.

147. In moss, peristomial teeth are:

 
 
 
 

148. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

151. Germination of the seed of Pinus is :

 
 
 
 

152. In Gymnocarpeae the fruiting body is :

 
 
 
 

153. The order generally ends with:

 
 
 
 

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

 
 
 
 

155. Mucilaginous canals in Cycas are found in :

 
 
 
 

156. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

159. 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:

 
 
 
 

160. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

164. The archegonia in Selaginella develop on:

 
 
 
 

165. The roots of Cycas are :

 
 
 
 

166. The mycelium of Rhizopus is:

 
 
 
 

167. Small epidermal swellings due to infection are called :

 
 
 
 

168. The middle sterile part of capsule is called:

 
 
 
 

169. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. Longest known virus is:

 
 
 
 

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

 
 
 
 

175. The Rhizopus is:

 
 
 
 

176. Which of the following is true for viruses?

 
 
 
 

177. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

179. In a bacteriophage, DNA is present in:

 
 
 
 

180. Streptomyces falls under:

 
 
 
 

181. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

183. What is mycorrhiza?

 
 
 
 

184. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

187. Redness of red sea is due to :

 
 
 
 

188. The central part of Funaria axis is :

 
 
 
 

189. In Pteris, the archegonia are present:

 
 
 
 

190. The stele of Dryopteris is a:

 
 
 
 

191. John Hutchinson divided dicots into two divisions:

 
 
 
 

192. Bacteria which are spherical are called:

 
 
 
 

193. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

195. Embryophyta includes :

 
 
 
 

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

 
 
 
 

197. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. Aflatoxin is produced by:

 
 
 
 

201. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

203. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

205.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

209. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

211. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

212. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

217. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

219. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Mycoplasma are:

 
 
 
 

224. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

226. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

229. Number of capsomeres forming capsid of TMV is:

 
 
 
 

230. Etiology includes the study of :

 
 
 
 

231. Mostly type of zygospore in Ulothrix is:

 
 
 
 

232. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. Absorptive nutrition is:

 
 
 
 

237. Viroids have:

 
 
 
 

238. The fungi that grow on wood are called:

 
 
 
 

239. Circular DNA is seen in:

 
 
 
 

240. Funaria are commonly found :

 
 
 
 

241. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

243. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

245. The sporophyte of Riccia is represented by :

 
 
 
 

246. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

248. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

252. Which is the nuclear material in bacteria?

 
 
 
 

253. Who discovered cyanophages?

 
 
 
 

254. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

255. 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?

 
 
 
 

256. Fruits are not found in Cycas because:

 
 
 
 

257. The mode of nutrition of bacteria is usually:

 
 
 
 

258. Choose the correct statement about Spirogyra:

 
 
 
 

259. Nitrogen-fixing bacteria may be located:

 
 
 
 

260. 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?

 
 
 
 

261. Which of the following is a parasitic algae?

 
 
 
 

262. Lichens are pioneers of vegetation in a :

 
 
 
 

263. The upper region of moss capsule is :

 
 
 
 

264. Some bacteria cannot be killed easily because of:

 
 
 
 

265. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

268. Yeast grows more rapidly in:

 
 
 
 

269. Mycoplasmas are not viruses in nature because:

 
 
 
 

270. Botulism is a:

 
 
 
 

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

 
 
 
 

272. Kuru, a human disease is caused by:

 
 
 
 

273. Red rot of sugarcane is caused by :

 
 
 
 

274. The plants of Funaria grow :

 
 
 
 

275. All protozoans possess:

 
 
 
 

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

 
 
 
 

277. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

283. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

285. What are Cyanobacteria?

 
 
 
 

286. Lichens are the indicator of pollution :

 
 
 
 

287. The lichens growing on rocks are called :

 
 
 
 

288. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

290.

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

 
 
 
 

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

 
 
 
 

293. Pasteurized milk is:

 
 
 
 

294. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

296. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

298. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

301. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

303. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

306. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

308. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

310. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

314. Cyathia is characterized by:

 
 
 
 

315. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

317. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

320. Water-net is the name of:

 
 
 
 

321. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

324. Generic name of mango is:

 
 
 
 

325. An alga which is rich in proteins:

 
 
 
 

326. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

328. Fruits are not found in :

 
 
 
 

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

 
 
 
 

330. Viruses have:

 
 
 
 

331. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

333. Clostridium can:

 
 
 
 

334. In moss, calyptra is formed from:

 
 
 
 

335. Which is an edible fungus?

 
 
 
 

336. The spermatozoids of Cycas are :

 
 
 
 

337. Standard size of a herbarium sheet is:

 
 
 
 

338. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

345. Ovules are not found enclosed in ovary in :

 
 
 
 

346. Lichens show :

 
 
 
 

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

 
 
 
 

348. Acellular slime mold is/are:

 
 
 
 

349. Sometimes the bacterial cell is enclosed in:

 
 
 
 

350. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

352. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

360. Bacteria were first discovered by:

 
 
 
 

361. In moss, reduction division occurs in :

 
 
 
 

362. Genetic material of TMV is:

 
 
 
 

363. Green plants are classified as :

 
 
 
 

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

 
 
 
 

365. The vascular bundles of Cycas stem are :

 
 
 
 

366. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

371. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

374. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

375. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

377. Which of the following does not contain chlorophyll?

 
 
 
 

378. 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?

 
 
 
 

379. The sexual reproductive organs in Rhizopus are:

 
 
 
 

380. Fern prothallus produces:

 
 
 
 

381. Pollination drop is:

 
 
 
 

382. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

384. Facultative parasite is:

 
 
 
 

385. What are plasmids?

 
 
 
 

386. 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:

 
 
 
 

387. The ferns are usually found:

 
 
 
 

388. Enteric bacteria are those bacteria that live:

 
 
 
 

389. Who discovered streptomycin?

 
 
 
 

390. Reserve food in Euglena is:

 
 
 
 

391. Sexual reproduction of lichen is due to :

 
 
 
 

392. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

394. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

396. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

398. Lichens are indicators of :

 
 
 
 

399. The lambda phase is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

402. Lichens are ecologically important because :

 
 
 
 

403. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

405. Cycas plant in appearance resembles :

 
 
 
 

406. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

411. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

413. Oswald Tippo’s classification is:

 
 
 
 

414. Which of the following have a prokaryotic cell?

 
 
 
 

415. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

418. Pollination in Pinus is :

 
 
 
 

419. The Rhizopus gametes are formed in:

 
 
 
 

420. Bacteria growing on synthetic medium are called:

 
 
 
 

421. Agar-agar is obtained from:

 
 
 
 

422. NBG of Lucknow is now named as:

 
 
 
 

423. 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:

 
 
 
 

424. Most of the algae are :

 
 
 
 

425. The zygospore in Rhizopus on germination forms:

 
 
 
 

426. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

430. Who named prion?

 
 
 
 

431. What is special feature of fern archegonia?

 
 
 
 

432. The leaves of Funaria are :

 
 
 
 

433. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

435. Club moss is the common name of :

 
 
 
 

436. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

438. Fruiting body of lichens is :

 
 
 
 

439. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

441. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

445. Pinus gerardiana is :

 
 
 
 

446. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

450. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

453. Club moss and Peat moss belong to:

 
 
 
 

454. What is the role of nitrifying bacteria?

 
 
 
 

455. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

456. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

460. Why is Cycas called a living fossil?

 
 
 
 

461. In Pteris, the roots are:

 
 
 
 

462. Which among the following is a shrub?

 
 
 
 

463. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

465. The leafy fern plant represents the:

 
 
 
 

466. Germ theory of disease was proposed by:

 
 
 
 

467. The seedless plants which possess vascular tissues are:

 
 
 
 

468. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

470. Proembryo in Pinus is :

 
 
 
 

471. Spermatophyta are characterized by producing:

 
 
 
 

472. The fungi used as food are:

 
 
 
 

473. Pollination in Cycas takes place by :

 
 
 
 

474. Funaria is :

 
 
 
 

475. Sporophyte of Funaria is :

 
 
 
 

476. Embryo formation is not known in :

 
 
 
 

477. Seeds are characteristically found in:

 
 
 
 

478. All algae have:

 
 
 
 

479. Which is a redwood tree?

 
 
 
 

480. Rice, pea, potato are :

 
 
 
 

481. Synzoospore is produced in:

 
 
 
 

482. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

484. Which have the largest antherozoid?

 
 
 
 

485. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. Virus and bacteriophage are made-up of:

 
 
 
 

489. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

495. Metulae are found in:

 
 
 
 

496. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

500. 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:

 
 
 
 

501. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

503. The rhizoids of Funaria are :

 
 
 
 

504. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

506. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

508. Which of the following have algal zone?

 
 
 
 

509. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

511. The role of meiosis is for:

 
 
 
 

512. Which statement is wrong in regard to bacteria?

 
 
 
 

513. The tree fern is:

 
 
 
 

514. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

517. Nannandria are:

 
 
 
 

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

 
 
 
 

519. Asexual reproductive body of Volvox is called:

 
 
 
 

520. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

522. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

526. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

528. E coli is a:

 
 
 
 

529. Penicillin is obtained from:

 
 
 
 

530. Infective part of virus was discovered by:

 
 
 
 

531. Heterospory and ligulate leaves are a feature of:

 
 
 
 

532. Saccharomyces ludwigii ascus produces:

 
 
 
 

533. Which is not true for Escherichia coli?

 
 
 
 

534. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

538. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

539. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

541. The chromosomal number in:

 
 
 
 

542. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

544. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

546. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

548. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

550. Pasteur is famous for his:

 
 
 
 

551. Which part of Riccia bears nurse cells?

 
 
 
 

552. Diphtheria is caused by:

 
 
 
 

553. Chemosynthetic bacteria are:

 
 
 
 

554. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

556. TMV was isolated in crystalline form by:

 
 
 
 

557. Select the wrong statement:

 
 
 
 

558. Heterotrichous habit means :

 
 
 
 

559. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

561. Methanogens belong to:

 
 
 
 

562. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

563. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

565. The megaspore of Selaginella on germination produces:

 
 
 
 

566. Spermatophyta are characterized by producing:

 
 
 
 

567. The disease apple scab is caused by:

 
 
 
 

568. Ulothrix produces :

 
 
 
 

569. The sporangium of fern contains nearly:

 
 
 
 

570. Cycas is similar to a mustard plant :

 
 
 
 

571. Meristele of fern is:

 
 
 
 

572. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

574. Placenta in fern is:

 
 
 
 

575. Meiosis in Ulothrix takes place:

 
 
 
 

576. Total parasites belong to:

 
 
 
 

577. Among the algae kelps are :

 
 
 
 

578. 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:

 
 
 
 

579. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

580. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

582. Usually, bacteria reproduce by:

 
 
 
 

583. Smut of maize is caused by :

 
 
 
 

584. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

585. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

587. Red rot of sugarcane is caused by :

 
 
 
 

588. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

593. The gametophyte of fern is as:

 
 
 
 

594. The term stele was given by:

 
 
 
 

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

 
 
 
 

596. Interferon is a:

 
 
 
 

597. The chief characteristic of class Ascomycetes is:

 
 
 
 

598. Climbers are found in genus:

 
 
 
 

599. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

605. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

608. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

611. Early blight of potato is caused by:

 
 
 
 

612. The development of Selaginella embryo is:

 
 
 
 

613. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

615. The largest alga is:

 
 
 
 

616. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

620. The fern plant is:

 
 
 
 

621. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

625. Where does meiosis occur in yeast?

 
 
 
 

626. 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?

 
 
 
 

627. Multicellular and jacketed sex organs are found in :

 
 
 
 

628. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

631. Special feature of pollen grains of Pinus is :

 
 
 
 

632. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

634. Cell walls of Gram-positive bacteria contain:

 
 
 
 

635. Most primitive group of vascular plants are:

 
 
 
 

636. Cocci types of bacteria are:

 
 
 
 

637. The disease symptom necrosis refers to :

 
 
 
 

638. Embryophyta includes:

 
 
 
 

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

 
 
 
 

640. 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:

 
 
 
 

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

 
 
 
 

642. Bentham and Hooker placed gymnosperms:

 
 
 
 

643. Most common type of conjugation in Spirogyra is :

 
 
 
 

644. Lichens reproduce by :

 
 
 
 

645. The fungi are mostly:

 
 
 
 

646. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

648. Ergot of rye is caused by:

 
 
 
 

649. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

651. The archegonia of Selaginella are differentiated by:

 
 
 
 

652. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

654. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

656. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

657. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

665. The tallest moss in the world is :

 
 
 
 

666. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

668. Bivalved siliceous shell or frustule occur in:

 
 
 
 

669. Male gametes in Dryopteris are:

 
 
 
 

670. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

673. Which lichen is called Reindeer moss?

 
 
 
 

674. Discovery of penicillin was based on:

 
 
 
 

675. The coralloid roots are :

 
 
 
 

676. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

681. Antibiotics cure the disease by:

 
 
 
 

682. Select the wrong statement:

 
 
 
 

683. Select the correct statement: (NEET 2016)

 
 
 
 

684. Fern prothallus is:

 
 
 
 

685. Heterosporous pteridophytes always form:

 
 
 
 

686. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

688. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

691. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

697. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

703. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

705. Amoeba is a member of the phylum:

 
 
 
 

706. In Cycas microsporangia are borne on:

 
 
 
 

707. Azolla and Salvinia both are:

 
 
 
 

708. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

712. In Cycas which structure is equivalent to stamen?

 
 
 
 

713. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

716. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

718. Sexual reproduction in Rhizopus is by:

 
 
 
 

719. The orders generally have the uniform endings:

 
 
 
 

720. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

722. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. Which of the following lichens is harmful?

 
 
 
 

726. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

728. The flagella of Chlamydomonas are:

 
 
 
 

729. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

733. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

735. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

740. Centric discoid form of diatom is:

 
 
 
 

741. The first to isolate a plant virus was:

 
 
 
 

742. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

744. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

747. Funaria is a Bryophyta because :

 
 
 
 

748. LSD is:

 
 
 
 

749. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

754. Ectocarpus produces:

 
 
 
 

755. Pythium debaryanum is the causative agent of:

 
 
 
 

756. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

761. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

763. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

765. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

768. Selaginella differs from Moss in having:

 
 
 
 

769. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

771. Pinus is:

 
 
 
 

772. In moss, sporogenous tissue arises from:

 
 
 
 

773. Spirogyra differs from moss protonema in having :

 
 
 
 

774. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

777. Desired type of Cycas can be grown by:

 
 
 
 

778. Which of the following are included in Tracheophyta?

 
 
 
 

779. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

781. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

783. Fern phloem lacks:

 
 
 
 

784. Spores of which plants have chloroplast:

 
 
 
 

785. Smallpox is caused by:

 
 
 
 

786. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

788. Green plants are classified as:

 
 
 
 

789. Vegetative reproduction in Cycas is by means of :

 
 
 
 

790. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

792. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

795. The male gametes of Pinus are :

 
 
 
 

796. Fertility of the soil is increased by:

 
 
 
 

797. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

800. Ginkgo biloba is a:

 
 
 
 

801. Cellular slime mold is:

 
 
 
 

802. Ovary is absent in :

 
 
 
 

803. Which of the following is true for Selaginella?

 
 
 
 

804. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

806. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

809. The DNA of E coli is:

 
 
 
 

810. Which of the following is sago palm?

 
 
 
 

811. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

813. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

816. What is streptomycin?

 
 
 
 

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

 
 
 
 

818. Most primitive embryophytes are placed in:

 
 
 
 

819. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

823. Viruses are commonly transmitted in plants through:

 
 
 
 

824. The microsporophylls on the cone of Cycas are :

 
 
 
 

825. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

827. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

830. Which is a gametophytic tissue?

 
 
 
 

831. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

834. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

836. Viruses are considered to be:

 
 
 
 

837. Coenogamete is found in:

 
 
 
 

838. Penicillin was discovered by:

 
 
 
 

839. Which condition is found in Cycas?

 
 
 
 

840. What is absent in Deuteromycetes?

 
 
 
 

841. Ergot is obtained from :

 
 
 
 

842. Who discovered heterothallism in fungi?

 
 
 
 

843. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

845. Pasteurization of milk involves heating for:

 
 
 
 

846. Which bacteria convert nitrate into nitrogen?

 
 
 
 

847. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. Gametophyte is the main plant body in :

 
 
 
 

851. Protozoans are considered animals because these are:

 
 
 
 

852. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

858. Which of the following applies to Selaginella?

 
 
 
 

859. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. Fruits are not found in:

 
 
 
 

864. Mycoplasma is different from bacteria due to: