Quiz_Random

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

 
 
 
 

2. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

4. Enzymes are absent in:

 
 
 
 

5. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

7. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. The chief characteristic of bryophyta is that :

 
 
 
 

11. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

13. What are Cyanobacteria?

 
 
 
 

14. Which of the following is true for Selaginella?

 
 
 
 

15. Red rot of sugarcane is caused by:

 
 
 
 

16. In tracheophyta:

 
 
 
 

17. Pneumonia is caused by:

 
 
 
 

18. TMV was isolated in crystalline form by:

 
 
 
 

19. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

21. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

22. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

24. Antibiotics cure the disease by:

 
 
 
 

25. The similarity between cyanobacteria and bacteria:

 
 
 
 

26. Fern prothallus produces:

 
 
 
 

27. Transfusion tissue is present in the leaflet of:

 
 
 
 

28. Sleeping sickness disease in man is caused by:

 
 
 
 

29. The Rhizopus gametes are formed in:

 
 
 
 

30. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

35. The photosynthetic protists are:

 
 
 
 

36. Funaria can be differentiated from Cycas :

 
 
 
 

37. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

39. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

41. Yeast is a source of:

 
 
 
 

42. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

43. The phloem of vascular system of Cycas is :

 
 
 
 

44. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

46. Vegetative reproduction in Cycas is by means of :

 
 
 
 

47. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. The lambda phase is a:

 
 
 
 

54. To which class Riccia belongs :

 
 
 
 

55. Early blight of potato is caused by:

 
 
 
 

56. Kuru, a human disease is caused by:

 
 
 
 

57. The antherozoids of Funaria are :

 
 
 
 

58. Discovery of penicillin was based on:

 
 
 
 

59. Roots are absent in :

 
 
 
 

60. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Lichens reproduce by :

 
 
 
 

64. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

66.

 

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

 
 
 
 

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

 
 
 
 

69. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

71. Botulinum toxin effects:

 
 
 
 

72. Banana bunchy top is caused by :

 
 
 
 

73. Generic name of mango is:

 
 
 
 

74. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

75. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

77. Climbers are found in genus:

 
 
 
 

78. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

80. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

82. Citrus canker is caused by :

 
 
 
 

83. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

85. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. Red rot of sugarcane is caused by :

 
 
 
 

89. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

91. In Gymnocarpeae the fruiting body is :

 
 
 
 

92. 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:

 
 
 
 

93. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

95. Lichens form the first community in

 
 
 
 

96. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

98. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. Which of the following are absent in Mycoplasma?

 
 
 
 

102. Which of the following is a heterosporous pteridophyte?

 
 
 
 

103. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

106. Select the correct statement: (NEET 2016)

 
 
 
 

107. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

110. 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:

 
 
 
 

111. Nitrifying bacteria play an important role by converting:

 
 
 
 

112. Pteridophyta are also called:

 
 
 
 

113. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

120. 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:

 
 
 
 

121. Cleavage polyembryony is found in :

 
 
 
 

122. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

125. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

127. Meristele of fern is:

 
 
 
 

128. Green plants are classified as:

 
 
 
 

129. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

131.

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

 
 
 
 

133. Ovary is absent in :

 
 
 
 

134. Pasteur is famous for his:

 
 
 
 

135. The megaspore of Selaginella on germination produces:

 
 
 
 

136. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

138. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

140. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

143. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

146. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

148. The tallest moss in the world is :

 
 
 
 

149. Longest known virus is:

 
 
 
 

150. The fern plant is:

 
 
 
 

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

 
 
 
 

152. The sori in Dryopteris are found on:

 
 
 
 

153. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. How is moss different from fern?

 
 
 
 

158. Cycas is different from mango in :

 
 
 
 

159. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. Heterotrichous habit means :

 
 
 
 

163. Mycoplasma is different from bacteria due to:

 
 
 
 

164. The sporangia of Selaginella are attached:

 
 
 
 

165. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

167. Coenogamete is found in:

 
 
 
 

168. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

170. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

172. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

175. 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:

 
 
 
 

176. Cycas plant in appearance resembles :

 
 
 
 

177. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

179. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

181. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

187. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

189. The group algae possesses representatives belonging to kingdom:

 
 
 
 

190. Mycoplasma are:

 
 
 
 

191. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

193. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

195. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

197. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. Which of the following is a parasitic algae?

 
 
 
 

201. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. In Cycas which structure is equivalent to stamen?

 
 
 
 

205. Each chloroplast in Spirogyra bears :

 
 
 
 

206. The teeth of peristome of Funaria are :

 
 
 
 

207. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

209. The DNA of E coli is:

 
 
 
 

210. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

212. The male gametes of Pinus are :

 
 
 
 

213. Black rust of wheat is caused by:

 
 
 
 

214. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

215. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

218. Bryophyta have been placed in cryptogams because:

 
 
 
 

219. Vascular cryptogams is the term used for:

 
 
 
 

220. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

226. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

227. The young leaves of Cycas have :

 
 
 
 

228. The mode of nutrition of bacteria is usually:

 
 
 
 

229. The first to isolate a plant virus was:

 
 
 
 

230. Which causes red tide?

 
 
 
 

231. Enteric bacteria are those bacteria that live:

 
 
 
 

232. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

234. Metulae are found in:

 
 
 
 

235. Water-borne bacterial diseases are:

 
 
 
 

236. Most common type of conjugation in Spirogyra is :

 
 
 
 

237. In moss, sporophyte is formed on:

 
 
 
 

238. Which of the following is true for viruses?

 
 
 
 

239. Fruits are not found in:

 
 
 
 

240. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

242. Cycas is :

 
 
 
 

243. Streptomyces falls under:

 
 
 
 

244. The stele of Dryopteris is a:

 
 
 
 

245. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

247. Desired type of Cycas can be grown by:

 
 
 
 

248. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

252. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

254. Most primitive group of vascular plants are:

 
 
 
 

255. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

257. Most of the lichens are composed of :

 
 
 
 

258. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

262. Who discovered cyanophages?

 
 
 
 

263. The rhizoids of Funaria are :

 
 
 
 

264. Ovary is absent in:

 
 
 
 

265. Choose the correct statement about Spirogyra:

 
 
 
 

266. Placenta in fern is:

 
 
 
 

267. What is the role of nitrifying bacteria?

 
 
 
 

268. What is special feature of fern archegonia?

 
 
 
 

269. Liverworts are included in :

 
 
 
 

270. Virion refers to:

 
 
 
 

271. The flagella of Chlamydomonas are:

 
 
 
 

272. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

277. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

282. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

285. The leaves of Funaria are :

 
 
 
 

286. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

288. Rhizopus and yeast are usually:

 
 
 
 

289. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

291. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

293. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

295. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

298. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

300. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

302. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

311. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

312. Who discovered heterothallism in fungi?

 
 
 
 

313. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

315. Which is a fungicide?

 
 
 
 

316. Which part of Riccia bears nurse cells?

 
 
 
 

317. Seeds are characteristically found in :

 
 
 
 

318. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

320. Multicellular and jacketed sex organs are found in :

 
 
 
 

321. Selaginella differs from Moss in having:

 
 
 
 

322. How a fern differs from a moss?

 
 
 
 

323. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

325. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

327. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

329. Pollination in Pinus is :

 
 
 
 

330. The antibiotic is obtained from:

 
 
 
 

331. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

332. Most of the algae are :

 
 
 
 

333. The sexual reproductive organs in Rhizopus are:

 
 
 
 

334. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

337. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

339. Endemic plants are characterised by their:

 
 
 
 

340. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

342. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

345. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. Fruits are not found in Cycas because:

 
 
 
 

349. Pinus is:

 
 
 
 

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

 
 
 
 

351. The orders generally have the uniform endings:

 
 
 
 

352. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

362. Protists which are diploid reproduce sexually by:

 
 
 
 

363. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

367. In a bacteriophage, DNA is present in:

 
 
 
 

368. Acellular slime mold is/are:

 
 
 
 

369. Halophiles are the bacteria that require for growth:

 
 
 
 

370. Special feature of pollen grains of Pinus is :

 
 
 
 

371. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

373. 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?

 
 
 
 

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

 
 
 
 

375. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

380. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

383. Pollination drop is:

 
 
 
 

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

 
 
 
 

385. Interferon is a:

 
 
 
 

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

 
 
 
 

387. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

391. Typhoid in man is caused by:

 
 
 
 

392. Pollination in Cycas takes place by :

 
 
 
 

393. The ferns are usually found:

 
 
 
 

394. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

397. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

398. Which of the following are included in Tracheophyta?

 
 
 
 

399. Streptomycin is obtained from:

 
 
 
 

400. In Gymnosperms endosperm is a:

 
 
 
 

401. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

403. The gametophyte of moss has distinct phases :

 
 
 
 

404. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

406. Genetic material of TMV is:

 
 
 
 

407. Botulism is a:

 
 
 
 

408. Bivalved siliceous shell or frustule occur in:

 
 
 
 

409. In Cycas:

 
 
 
 

410. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. The chloroplast of Chlamydomonas are:

 
 
 
 

414. Which among the following is a shrub?

 
 
 
 

415. LSD is:

 
 
 
 

416. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. Which of the following have a prokaryotic cell?

 
 
 
 

421. Which of the following lichens is harmful?

 
 
 
 

422. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

425. Viruses are considered to be:

 
 
 
 

426. Small epidermal swellings due to infection are called :

 
 
 
 

427. The central part of Funaria axis is :

 
 
 
 

428. Bryophyta have a special character from other plants:

 
 
 
 

429. The chief characteristic of class Ascomycetes is:

 
 
 
 

430. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

432. Gymnosperms could also be called as:

 
 
 
 

433. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. Photoautotrophic bacteria have:

 
 
 
 

438. The fungi that grow on wood are called:

 
 
 
 

439. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

442. Anoxygenic photosynthesis occurs in:

 
 
 
 

443.

444. The microsporophylls on the cone of Cycas are :

 
 
 
 

445. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

450. Black rust of wheat is caused by:

 
 
 
 

451. Bentham and Hooker placed gymnosperms:

 
 
 
 

452. In a diplontic life cycle:

 
 
 
 

453. Asexual reproductive body of Volvox is called:

 
 
 
 

454. Mycoplasma contains:

 
 
 
 

455. The term stele was given by:

 
 
 
 

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

 
 
 
 

457. The megasporangium of Selaginella is:

 
 
 
 

458. Who among the following discovered virus?

 
 
 
 

459. Wine turns sour because of:

 
 
 
 

460. Psilotum is:

 
 
 
 

461. Which is the correct statement about Selaginella?

 
 
 
 

462. The leafy fern plant represents the:

 
 
 
 

463. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

465. Indusium in Dryopteris is:

 
 
 
 

466. The fungi used as food are:

 
 
 
 

467. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

469. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

471. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

473. Fern plants are:

 
 
 
 

474. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

477. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. Pythium debaryanum is the causative agent of:

 
 
 
 

481. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

483. Ethylene oxide is widely used to:

 
 
 
 

484. Infective part of virus was discovered by:

 
 
 
 

485. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. Rhizopus belongs to:

 
 
 
 

489. Pasteurized milk is:

 
 
 
 

490. Smallpox is caused by:

 
 
 
 

491. Agar-agar is obtained from:

 
 
 
 

492. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

494. Rice, pea, potato are :

 
 
 
 

495. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498. Photosynthetic bacteria have:

 
 
 
 

499. Yeast grows more rapidly in:

 
 
 
 

500. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

502. The plants of Funaria grow :

 
 
 
 

503. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

504. The zoospores of Ulothrix are :

 
 
 
 

505. Penicillin was discovered by:

 
 
 
 

506. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

508. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

511. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

513. 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:

 
 
 
 

514. Viroids have:

 
 
 
 

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

 
 
 
 

516. Which is a redwood tree?

 
 
 
 

517. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

520. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

525. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

527. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

530. The development of sporangium in Selaginella is:

 
 
 
 

531. Which one of the following is a monocot?

 
 
 
 

532. The order generally ends with:

 
 
 
 

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

 
 
 
 

534. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

536. Which condition is found in Cycas?

 
 
 
 

537. What is streptomycin?

 
 
 
 

538. The genetic material of poxvirus is:

 
 
 
 

539. Cycas is:

 
 
 
 

540. Which of the following statement is correct?

 
 
 
 

541. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

542. Gram stain is used to:

 
 
 
 

543. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Sporophyte of Funaria is :

 
 
 
 

550. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

552. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

554. Chief constituents of bordeaux mixture are :

 
 
 
 

555. An Hfr bacterium is one that contains:

 
 
 
 

556. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

559. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. The coralloid roots are :

 
 
 
 

563. Sexual reproduction of lichen is due to :

 
 
 
 

564. Standard size of a herbarium sheet is:

 
 
 
 

565. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

570. One of the distinctive feature of Spirogyra is :

 
 
 
 

571. Viruses have:

 
 
 
 

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

 
 
 
 

573. Green plants are classified as :

 
 
 
 

574. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

576. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

578. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

580. Funaria is :

 
 
 
 

581. The Rhizopus is:

 
 
 
 

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

 
 
 
 

583. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

585. Who named prion?

 
 
 
 

586. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

593. Leprosy is caused by:

 
 
 
 

594. Why is Cycas called a living fossil?

 
 
 
 

595. The truncated cone of HIV consists of:

 
 
 
 

596. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

598. Bacteria are considered to be plants because they:

 
 
 
 

599. Black rust of wheat is caused by:

 
 
 
 

600. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. Cryptogams include :

 
 
 
 

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

 
 
 
 

605. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

607. All protozoans possess:

 
 
 
 

608. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

613. Diphtheria is caused by:

 
 
 
 

614. Usually, bacteria reproduce by:

 
 
 
 

615. Some biologists have used the term Mycetozoa for:

 
 
 
 

616. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

618. The spermatozoids of Cycas are :

 
 
 
 

619. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

623. The most primitive vascular plants is:

 
 
 
 

624. Chemosynthetic bacteria are:

 
 
 
 

625. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

628. Bacteria are placed under:

 
 
 
 

629. The lichens growing on rocks are called :

 
 
 
 

630.

631. Bacteria growing on synthetic medium are called:

 
 
 
 

632. The most important property of yeast is:

 
 
 
 

633. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

635. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

636. Triple antigen injection or vaccine are for:

 
 
 
 

637. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

639. Circular DNA is seen in:

 
 
 
 

640. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

642. The two conjugating gametangia of Rhizopus are:

 
 
 
 

643. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

645. The smallest bacterium is:

 
 
 
 

646. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

648. 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:

 
 
 
 

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

 
 
 
 

650. Male gametes in Dryopteris are:

 
 
 
 

651. Amoeba is a member of the phylum:

 
 
 
 

652. Sporophyte of fern is:

 
 
 
 

653. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

655. Sometimes the bacterial cell is enclosed in:

 
 
 
 

656. Saccharomyces is well known for:

 
 
 
 

657. Select the wrong statement:

 
 
 
 

658. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

661. In moss, sporogenous tissue arises from:

 
 
 
 

662. Bacteria were first discovered by:

 
 
 
 

663. . Tapetum develops in:

 
 
 
 

664. Lichen show :

 
 
 
 

665. Leaf spot of groundnut is caused by :

 
 
 
 

666. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

669. Most primitive embryophytes are placed in :

 
 
 
 

670. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

674. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

676. Most primitive embryophytes are placed in:

 
 
 
 

677. The largest alga is:

 
 
 
 

678. Mostly type of zygospore in Ulothrix is:

 
 
 
 

679. Bacteria which are spherical are called:

 
 
 
 

680. Number of capsomeres forming capsid of TMV is:

 
 
 
 

681. Broad spectrum antibiotic is, which:

 
 
 
 

682. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

685. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

687. Cycas revoluta is widely grown as :

 
 
 
 

688. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

693. 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:

 
 
 
 

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

 
 
 
 

695. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

697. Water-net is the name of:

 
 
 
 

698. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

700. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

702. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

706. The seedless plants which possess vascular tissues are:

 
 
 
 

707. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

709. Cycas is similar to a mustard plant :

 
 
 
 

710. Heterosporous pteridophytes always form:

 
 
 
 

711. Azolla and Salvinia both are:

 
 
 
 

712. Ectocarpus produces:

 
 
 
 

713. Methanogens belong to:

 
 
 
 

714. The smallest unit of classification is:

 
 
 
 

715. Some bacteria cannot be killed easily because of:

 
 
 
 

716. Bacteria differ from viruses in being sensitive to:

 
 
 
 

717. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

720. Embryophyta includes :

 
 
 
 

721. Economic importance of bacteria lies in their being:

 
 
 
 

722. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

724. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

725. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

728. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

733. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

736. Cellular slime mold is:

 
 
 
 

737. To which country Antony van Leeuwenhoek belong?

 
 
 
 

738. Antibiotic has been extracted from :

 
 
 
 

739. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

741. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

743. In moss, reduction division occurs in :

 
 
 
 

744. What is a vector?

 
 
 
 

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

 
 
 
 

746. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

748. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

750. In Funaria :

 
 
 
 

751. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

755. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

758. An alga which is rich in proteins:

 
 
 
 

759. First animal pathogenic virus was discovered by:

 
 
 
 

760. 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?

 
 
 
 

761. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

763. Tautonyms are illegitimate in:

 
 
 
 

764. Plasmids are:

 
 
 
 

765. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

770. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

772. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

778. The vascular bundles of Cycas stem are :

 
 
 
 

779. Redness of red sea is due to :

 
 
 
 

780. Woody climbers are known as :

 
 
 
 

781. Mucilaginous canals in Cycas are found in :

 
 
 
 

782. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

785. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

789. Little leaf disease of Brinjal is caused by:

 
 
 
 

790. Meiosis in Ulothrix takes place:

 
 
 
 

791. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

796. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

799. The sporophyte of Riccia is :

 
 
 
 

800. Spores of which plants have chloroplast:

 
 
 
 

801. In Selaginella, the microsporangia are:

 
 
 
 

802. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

804. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

806. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

808. Fruits are not found in :

 
 
 
 

809. Late blight of potato is caused by:

 
 
 
 

810. Heterospory is the production of:

 
 
 
 

811. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

813. Parmelia belongs to :

 
 
 
 

814. In Pteris, the archegonia are present:

 
 
 
 

815. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

817. Lichens show :

 
 
 
 

818. Photosynthetic protists belong to:

 
 
 
 

819. Which of the following does not contain chlorophyll?

 
 
 
 

820. Heterospory and ligulate leaves are a feature of:

 
 
 
 

821. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

823. Aflatoxin is produced as a product in :

 
 
 
 

824. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

826. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

829. The gametophyte of fern bears:

 
 
 
 

830. Which one of the following statement is wrong?

 
 
 
 

831. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

833. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

836. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. Club moss and Peat moss belong to:

 
 
 
 

840. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

842. Smut of maize is caused by :

 
 
 
 

843. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

846. Cell walls of Gram-positive bacteria contain:

 
 
 
 

847. Clostridium can:

 
 
 
 

848. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

850. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

851. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

853. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

855. Ergot is obtained from :

 
 
 
 

856. Winged pollen grains are found in :

 
 
 
 

857. The chloroplast in Ulothrix is :

 
 
 
 

858. Viruses are commonly transmitted in plants through:

 
 
 
 

859. Disease resistant plant varieties can be produced by :

 
 
 
 

860. What is absent in Deuteromycetes?

 
 
 
 

861. The fungi are usually:

 
 
 
 

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

 
 
 
 

863. Fern prothallus is:

 
 
 
 

864. The tree fern is: