Quiz_Random

1. In tracheophyta:

 
 
 
 

2. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

4. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. The gametophyte of fern is as:

 
 
 
 

12. What is mycorrhiza?

 
 
 
 

13. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

18. Interferon is a:

 
 
 
 

19. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

21. LSD is:

 
 
 
 

22. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

24. Mycoplasma is different from bacteria due to:

 
 
 
 

25. Green plants are classified as:

 
 
 
 

26. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

28. Winged pollen grains are found in :

 
 
 
 

29. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

31. The phloem of vascular system of Cycas is :

 
 
 
 

32. Sleeping sickness disease in man is caused by:

 
 
 
 

33. Black rust of wheat is caused by:

 
 
 
 

34. Which is an edible fungus?

 
 
 
 

35. What is a vector?

 
 
 
 

36. Cycas plant in appearance resembles :

 
 
 
 

37. Select the wrong statement:

 
 
 
 

38. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

40. Most common type of conjugation in Spirogyra is :

 
 
 
 

41. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

43. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

45. Asexual reproductive body of Volvox is called:

 
 
 
 

46. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

47. Ulothrix produces :

 
 
 
 

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

 
 
 
 

49. Metulae are found in:

 
 
 
 

50. Total parasites belong to:

 
 
 
 

51. In Pteris, the archegonia are present:

 
 
 
 

52. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

54. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

55. Bacteria growing on synthetic medium are called:

 
 
 
 

56. Which organisms are the oldest life forms?

 
 
 
 

57. Viroids have:

 
 
 
 

58. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

59. Bacteriophages have been used as:

 
 
 
 

60. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

62. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

66. Liverworts are included in :

 
 
 
 

67. Discovery of penicillin was based on:

 
 
 
 

68. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

70. Lichens are the indicator of pollution :

 
 
 
 

71. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74.

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

 
 
 
 

76. Citrus canker is caused by :

 
 
 
 

77. Fairy ring is the name given to:

 
 
 
 

78. Cycas is similar to a mustard plant :

 
 
 
 

79. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

81. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Pollination in Pinus is :

 
 
 
 

85. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

91. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

93. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. Male gametes in Dryopteris are:

 
 
 
 

97. In moss, calyptra is formed from:

 
 
 
 

98. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

100. The development of Selaginella embryo is:

 
 
 
 

101. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

104. Etiology includes the study of :

 
 
 
 

105. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

108. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Seeds are characteristically found in :

 
 
 
 

113. The spermatozoids of Cycas are :

 
 
 
 

114. Protozoans are considered animals because these are:

 
 
 
 

115. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

117. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

119. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

121. Roots are absent in :

 
 
 
 

122. The term stele was given by:

 
 
 
 

123. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

124. The photosynthetic protists are:

 
 
 
 

125. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

131. The gametophyte of moss has distinct phases :

 
 
 
 

132. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

134. The megasporangium of Selaginella is:

 
 
 
 

135. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

137. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

139. Lichens are indicators of :

 
 
 
 

140. Indusium in Dryopteris is:

 
 
 
 

141. All protozoans possess:

 
 
 
 

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

 
 
 
 

143. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

148. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

150. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

152. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. Which of the following shows heterotrichous habit?

 
 
 
 

158. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

160. The leafy fern plant represents the:

 
 
 
 

161. Leaf spot of groundnut is caused by :

 
 
 
 

162. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

164. 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:

 
 
 
 

165. The sporangium of fern contains nearly:

 
 
 
 

166. Fertility of the soil is increased by:

 
 
 
 

167. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

170. The smallest unit of classification is:

 
 
 
 

171. Cell walls of Gram-positive bacteria contain:

 
 
 
 

172. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

174. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

176. Aflatoxin is produced as a product in :

 
 
 
 

177. Which is a fungicide?

 
 
 
 

178. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

180. Why is Cycas called a living fossil?

 
 
 
 

181. Ethylene oxide is widely used to:

 
 
 
 

182. Lichens form the first community in

 
 
 
 

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

 
 
 
 

184. Viruses have:

 
 
 
 

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

 
 
 
 

186. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

191. Amoeba is a member of the phylum:

 
 
 
 

192. Facultative saprophyte is:

 
 
 
 

193. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

195. To which country Antony van Leeuwenhoek belong?

 
 
 
 

196. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

198. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

200. Which of the following have a prokaryotic cell?

 
 
 
 

201. Which bacteria convert nitrate into nitrogen?

 
 
 
 

202. Gram stain is used to:

 
 
 
 

203. In Funaria :

 
 
 
 

204. The ferns are usually found:

 
 
 
 

205. Botulinum toxin effects:

 
 
 
 

206. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

208. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

210. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

212. Cyathia is characterized by:

 
 
 
 

213. What are plasmids?

 
 
 
 

214. Fern prothallus is:

 
 
 
 

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

 
 
 
 

216. Which class of Protozoa includes all parasitic forms?

 
 
 
 

217. The mode of nutrition of bacteria is usually:

 
 
 
 

218. Vascular tissue is found in :

 
 
 
 

219. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Heterosporous pteridophytes always form:

 
 
 
 

224. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

226. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

228. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

230. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

232. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

234. Mixed cropping helps :

 
 
 
 

235. In moss, reduction division occurs in :

 
 
 
 

236. Rhizoids of Riccia are :

 
 
 
 

237. Pollination drop is:

 
 
 
 

238. Green plants are classified as :

 
 
 
 

239. Spirogyra differs from moss protonema in having :

 
 
 
 

240. The sporangiophores in Rhizopus are:

 
 
 
 

241. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

244. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

245. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

247. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. The two conjugating gametangia of Rhizopus are:

 
 
 
 

251. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

253. Climbers are found in genus:

 
 
 
 

254. Which one of the following is a monocot?

 
 
 
 

255. Club moss is the common name of :

 
 
 
 

256. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

260. The zoospores of Ulothrix are :

 
 
 
 

261. Aflatoxin is produced by:

 
 
 
 

262. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

264. Soil fertility is lost by the activities of:

 
 
 
 

265. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

267. Smallpox is caused by:

 
 
 
 

268. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

270. Which of the following have algal zone?

 
 
 
 

271. The antibiotic is obtained from:

 
 
 
 

272. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

274. Which group of algae have an incipient nucleus?

 
 
 
 

275. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

278. TMV was isolated in crystalline form by:

 
 
 
 

279. E coli is a:

 
 
 
 

280. Banana bunchy top is caused by :

 
 
 
 

281. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

283. Ginkgo biloba is a:

 
 
 
 

284. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

286. Which of the following is a parasitic algae?

 
 
 
 

287. The leaf of Cycas shows:

 
 
 
 

288. Pneumonia is caused by:

 
 
 
 

289. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

292. Placenta in fern is:

 
 
 
 

293. Fruits are not found in:

 
 
 
 

294. Most primitive embryophytes are placed in:

 
 
 
 

295. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

297. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

299. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

301. Which is the correct statement about Selaginella?

 
 
 
 

302. Bacteria which are spherical are called:

 
 
 
 

303. The young leaves of Cycas have :

 
 
 
 

304. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

306. Cycas revoluta is widely grown as :

 
 
 
 

307. Common phycobiont in a lichen is :

 
 
 
 

308. Ovary is absent in :

 
 
 
 

309. What are Cyanobacteria?

 
 
 
 

310. 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:

 
 
 
 

311. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

312. Detailed study of bacteriophage was made by:

 
 
 
 

313. The ascus of yeast contains:

 
 
 
 

314. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

316. Proembryo in Pinus is :

 
 
 
 

317. Which of the following is true for Selaginella?

 
 
 
 

318. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

320. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

323. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. The truncated cone of HIV consists of:

 
 
 
 

327. The lambda phase is a:

 
 
 
 

328. Gymnosperms could also be called as:

 
 
 
 

329. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

334. Spermatophyta are characterized by producing:

 
 
 
 

335. Psilotum is:

 
 
 
 

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

 
 
 
 

337. Bacteria are placed under:

 
 
 
 

338. Typhoid in man is caused by:

 
 
 
 

339. The megaspore of Selaginella on germination produces:

 
 
 
 

340. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

342. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348.

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

 
 
 
 

350. In moss, stomata are found:

 
 
 
 

351. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

354. Milk is converted to curd by:

 
 
 
 

355. Which causes red tide?

 
 
 
 

356. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

359. The chief characteristic of class Ascomycetes is:

 
 
 
 

360. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

363. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

369. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

377. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

379. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

381. Standard size of a herbarium sheet is:

 
 
 
 

382. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

383. Red rot of sugarcane is caused by :

 
 
 
 

384. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

386. Rhizophore of Selaginella is:

 
 
 
 

387. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

390. The development of sporangium in Selaginella is:

 
 
 
 

391. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

394. The chromosomal number in:

 
 
 
 

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

 
 
 
 

396. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

398. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

401. Which of the following is sago palm?

 
 
 
 

402. Generic name of mango is:

 
 
 
 

403. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

405. The fern plant is:

 
 
 
 

406. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

411. Which have the largest antherozoid?

 
 
 
 

412. The disease symptom necrosis refers to :

 
 
 
 

413. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

416. Black rust of wheat is caused by:

 
 
 
 

417. The largest alga is:

 
 
 
 

418. 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?

 
 
 
 

419. The rhizoids of Funaria are :

 
 
 
 

420. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Pinus is:

 
 
 
 

425. White rust of crucifers is caused by:

 
 
 
 

426. In moss, sporophyte is formed on:

 
 
 
 

427. Which of the following lichens is harmful?

 
 
 
 

428. Lichen show :

 
 
 
 

429. Which of the following is a heterosporous pteridophyte?

 
 
 
 

430. Which of the following does not contain chlorophyll?

 
 
 
 

431. The stele of Dryopteris is a:

 
 
 
 

432. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

434. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. Nitrifying bacteria play an important role by converting:

 
 
 
 

438. Ovary is absent in:

 
 
 
 

439. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

441. Pythium debaryanum is the causative agent of:

 
 
 
 

442. Saccharomyces ludwigii ascus produces:

 
 
 
 

443. Chief constituents of bordeaux mixture are :

 
 
 
 

444. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

446. Cycas is different from mango in :

 
 
 
 

447. Rhizopus belongs to:

 
 
 
 

448. The alga, Spirogyra are found in :

 
 
 
 

449. Yeast belongs to class:

 
 
 
 

450. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

452. Saccharomyces is used in:

 
 
 
 

453. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

459. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

460. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

462. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

464. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

467. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

469. Heterospory and ligulate leaves are a feature of:

 
 
 
 

470. Protists which are diploid reproduce sexually by:

 
 
 
 

471. In angiosperms double fertilization represents:

 
 
 
 

472. The central part of Funaria axis is :

 
 
 
 

473. The upper region of moss capsule is :

 
 
 
 

474. Yeast grows more rapidly in:

 
 
 
 

475. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

477. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

479. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

481. First animal pathogenic virus was discovered by:

 
 
 
 

482. Bacteria are found everywhere, except:

 
 
 
 

483. Chemosynthetic bacteria are:

 
 
 
 

484. The smallest bacterium is:

 
 
 
 

485. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

487. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

490. Which of the following is true for viruses?

 
 
 
 

491. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

493. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

496. Embryophyta includes :

 
 
 
 

497. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

499. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

500. Lichens reproduce by :

 
 
 
 

501. Penicillin is obtained from:

 
 
 
 

502. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

505. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

507. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

509. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

510. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

512. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. Methanogens belong to:

 
 
 
 

519. Acellular slime mold is/are:

 
 
 
 

520. 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:

 
 
 
 

521. Plasmids are:

 
 
 
 

522. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

524. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

530. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

532. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

533. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. Which of the following are absent in Mycoplasma?

 
 
 
 

537. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

539. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

541. Cycas is :

 
 
 
 

542. Fern plants are:

 
 
 
 

543. Male gametophyte of Selaginella is found:

 
 
 
 

544. Lichens are ecologically important because :

 
 
 
 

545. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

550. The sporophyte of Riccia is :

 
 
 
 

551. Anoxygenic photosynthesis occurs in:

 
 
 
 

552. The sporophyte of Riccia is represented by :

 
 
 
 

553. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

554. Zoogametes are not found in:

 
 
 
 

555. The genetic material of poxvirus is:

 
 
 
 

556. Centric discoid form of diatom is:

 
 
 
 

557. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

559. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

565. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

567. In moss, conducting tissue is made up of

 
 
 
 

568. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

570. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

572. Antibiotics cure the disease by:

 
 
 
 

573. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

575. Mycoplasma are sensitive to:

 
 
 
 

576. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

578. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

583. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

586. Funaria is :

 
 
 
 

587. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. The fungi that grow on wood are called:

 
 
 
 

591. Embryophyta includes:

 
 
 
 

592. Vegetative reproduction in Cycas is by means of :

 
 
 
 

593. Spermatophyta are characterized by producing:

 
 
 
 

594. The similarity between cyanobacteria and bacteria:

 
 
 
 

595. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

597. In Selaginella, the microsporangia are:

 
 
 
 

598. The nucleus of bacteria is:

 
 
 
 

599. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

604. Most appropriate word for protozoans is:

 
 
 
 

605. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

608. Rhizopus and yeast are usually:

 
 
 
 

609. Which is not found in bacteria?

 
 
 
 

610. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

614. . Tapetum develops in:

 
 
 
 

615. 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:

 
 
 
 

616. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

618. True sexuality is not found in:

 
 
 
 

619. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

623. What is streptomycin?

 
 
 
 

624. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

626. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

628. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

632. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

634. Photosynthetic protists belong to:

 
 
 
 

635. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

637. What is special feature of fern archegonia?

 
 
 
 

638. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

641. Reproduction in Rhizopus is:

 
 
 
 

642. Ectocarpus produces:

 
 
 
 

643. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

646. Cyanophage is a virus that attacks:

 
 
 
 

647. What is absent in Deuteromycetes?

 
 
 
 

648. The gametophyte produced by apospory is :

 
 
 
 

649. Antibiotic has been extracted from :

 
 
 
 

650. Siphonogamy is found in:

 
 
 
 

651. Who named prion?

 
 
 
 

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

 
 
 
 

653. Majority of lichens are :

 
 
 
 

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

 
 
 
 

655. Which is a redwood tree?

 
 
 
 

656. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

658. Polystelic condition is found in:

 
 
 
 

659. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

662. In binomial system most of the words are:

 
 
 
 

663. In Cycas the fertilization is:

 
 
 
 

664. An Hfr bacterium is one that contains:

 
 
 
 

665. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

668. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

675. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

678. Nannandria are:

 
 
 
 

679. Helotism word is used for the symbiosis between :

 
 
 
 

680. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

683. Pollination in Cycas takes place by :

 
 
 
 

684. Heterotrichous habit means :

 
 
 
 

685. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

687. The source of litmus is :

 
 
 
 

688. Pinus microsporophyll bears:

 
 
 
 

689. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

691. Parmelia belongs to :

 
 
 
 

692. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. Virion refers to:

 
 
 
 

696. Viruses are considered to be:

 
 
 
 

697. Most primitive embryophytes are placed in :

 
 
 
 

698. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

700. The fungi are mostly:

 
 
 
 

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

 
 
 
 

702. The fungi are usually:

 
 
 
 

703. Which among the following is a shrub?

 
 
 
 

704. Fern phloem lacks:

 
 
 
 

705. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

707. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

709. Iodine is obtained from :

 
 
 
 

710. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

712. The microsporophylls on the cone of Cycas are :

 
 
 
 

713. Cryptogams include :

 
 
 
 

714.

 

715. Broad spectrum antibiotic is, which:

 
 
 
 

716. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

718. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

720. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

722. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. Some bacteria cannot be killed easily because of:

 
 
 
 

727. The lichens growing on rocks are called :

 
 
 
 

728. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

730. Rice, pea, potato are :

 
 
 
 

731.

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

 
 
 
 

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

 
 
 
 

734. Streptomycin is obtained from:

 
 
 
 

735. Bivalved siliceous shell or frustule occur in:

 
 
 
 

736. The Rhizopus is:

 
 
 
 

737. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

739. Vascular cryptogams is the term used for:

 
 
 
 

740. In Cycas microsporangia are borne on:

 
 
 
 

741. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

746. Most resistant spore in bacteria is:

 
 
 
 

747. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

750. Agar-agar is obtained from:

 
 
 
 

751. Most of the algae are :

 
 
 
 

752. Which fixes atmospheric nitrogen?

 
 
 
 

753. To which class Riccia belongs :

 
 
 
 

754. Select the wrong statement:

 
 
 
 

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

 
 
 
 

756. Mycoplasma are:

 
 
 
 

757. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

760. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

763. The sexual reproductive organs in Rhizopus are:

 
 
 
 

764. Spores of which plants have chloroplast:

 
 
 
 

765. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

768. Meiosis in Ulothrix takes place:

 
 
 
 

769. Black rust of wheat is caused by:

 
 
 
 

770. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

773. Citrus canker is caused by:

 
 
 
 

774. Ovules are not found enclosed in ovary in :

 
 
 
 

775. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

777. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

778. Germ theory of disease was proposed by:

 
 
 
 

779. The fungi used as food are:

 
 
 
 

780. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

782. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

784. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

786. Streptomyces falls under:

 
 
 
 

787. Water bloom is generally caused by :

 
 
 
 

788. Maximum diversity of life forms occurs in :

 
 
 
 

789. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

791. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

793. Saccharomyces is well known for:

 
 
 
 

794. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. Mycoplasmas are not viruses in nature because:

 
 
 
 

798. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

802. Fruits are not found in :

 
 
 
 

803. Botulism is a:

 
 
 
 

804. All algae have:

 
 
 
 

805. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

807. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

810. Ergot is obtained from :

 
 
 
 

811. Cleavage polyembryony is found in :

 
 
 
 

812. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. The prothallus of fern is:

 
 
 
 

816. 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?

 
 
 
 

817. Which of the following are included in Tracheophyta?

 
 
 
 

818. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

820. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

822. The mycelium of Rhizopus is:

 
 
 
 

823. Nitrogen-fixing bacteria may be located:

 
 
 
 

824. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

827. The leaves of Funaria are :

 
 
 
 

828. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

832. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

836. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

840. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. Coenogamete is found in:

 
 
 
 

844. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

845. Early blight of potato is caused by:

 
 
 
 

846. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

848. Clostridium can:

 
 
 
 

849. Vascular cryptogam is the term used for :

 
 
 
 

850. Water-net is the name of:

 
 
 
 

851. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

853. In Cycas:

 
 
 
 

854. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

856. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

858. Funaria is a Bryophyta because :

 
 
 
 

859. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

861. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

864. All archaebacteria lack: