Quiz_Random

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

 
 
 
 

2. What is streptomycin?

 
 
 
 

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

 
 
 
 

4. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Which of the following are included in Tracheophyta?

 
 
 
 

12. NBG of Lucknow is now named as:

 
 
 
 

13. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. Quarantine regulations are concerned with:

 
 
 
 

21. The largest known bacterium is:

 
 
 
 

22. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. What are Cyanobacteria?

 
 
 
 

26. The fungi that grow on wood are called:

 
 
 
 

27. Longest known virus is:

 
 
 
 

28. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Pinus gerardiana is :

 
 
 
 

32. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

37. Green plants are classified as :

 
 
 
 

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

 
 
 
 

39. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

41. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. In moss, conducting tissue is made up of

 
 
 
 

46. Pythium debaryanum is the causative agent of:

 
 
 
 

47. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. The development of Selaginella embryo is:

 
 
 
 

51. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

53. In binomial system most of the words are:

 
 
 
 

54. In moss, sporogenous tissue arises from:

 
 
 
 

55. Interferon is a:

 
 
 
 

56. Some bacteria cannot be killed easily because of:

 
 
 
 

57. Which fixes atmospheric nitrogen?

 
 
 
 

58. Oswald Tippo’s classification is:

 
 
 
 

59. The middle sterile part of capsule is called:

 
 
 
 

60. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Botulinum toxin effects:

 
 
 
 

64. Mycoplasma are sensitive to:

 
 
 
 

65. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

67. The ferns are usually found:

 
 
 
 

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

 
 
 
 

69. Simple polyembryony is found in :

 
 
 
 

70. Bacteriophages have been used as:

 
 
 
 

71. The most important property of yeast is:

 
 
 
 

72. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

73. Sleeping sickness disease in man is caused by:

 
 
 
 

74. The roots of Cycas are :

 
 
 
 

75. Seeds are characteristically found in:

 
 
 
 

76. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. 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?

 
 
 
 

80. Cocci types of bacteria are:

 
 
 
 

81. The lambda phase is a:

 
 
 
 

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

 
 
 
 

83. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

85. Spermatophyta are characterized by producing:

 
 
 
 

86. The source of litmus is :

 
 
 
 

87. E coli is a:

 
 
 
 

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

 
 
 
 

89. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

91. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

92. Which of the following have a prokaryotic cell?

 
 
 
 

93. The truncated cone of HIV consists of:

 
 
 
 

94. Facultative parasite is:

 
 
 
 

95. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

96. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

102. Gymnosperms could also be called as:

 
 
 
 

103. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

105. Nitrifying bacteria play an important role by converting:

 
 
 
 

106. Some diseases caused by bacteria are:

 
 
 
 

107. Citrus canker is caused by:

 
 
 
 

108. The chief characteristic of bryophyta is that :

 
 
 
 

109. In Cycas the fertilization is:

 
 
 
 

110. Metulae are found in:

 
 
 
 

111. Psilotum is:

 
 
 
 

112. Ovules are not found enclosed in ovary in :

 
 
 
 

113. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. Chief constituents of bordeaux mixture are :

 
 
 
 

117. Indusium in Dryopteris is:

 
 
 
 

118. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

120. Detailed study of bacteriophage was made by:

 
 
 
 

121. The leaf of Cycas shows:

 
 
 
 

122. In tracheophyta:

 
 
 
 

123. Liverworts are included in :

 
 
 
 

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

 
 
 
 

125. In Cycas microsporangia are borne on:

 
 
 
 

126. Bacteria differ from viruses in being sensitive to:

 
 
 
 

127. Proembryo in Pinus is :

 
 
 
 

128. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

130. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

132. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

136. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

138. Club moss is the common name of :

 
 
 
 

139. Heterosporous pteridophytes always form:

 
 
 
 

140. The sporangiophores in Rhizopus are:

 
 
 
 

141. Which of the following shows heterotrichous habit?

 
 
 
 

142. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

145. Majority of lichens are :

 
 
 
 

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

 
 
 
 

147. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

153. Iodine is obtained from:

 
 
 
 

154. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157.

 

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

 
 
 
 

159. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

164. The disease apple scab is caused by:

 
 
 
 

165. Which of the following is a heterosporous pteridophyte?

 
 
 
 

166. What are plasmids?

 
 
 
 

167. Synzoospore is produced in:

 
 
 
 

168. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

169. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

172. Photosynthetic protists belong to:

 
 
 
 

173. The antibiotic is obtained from:

 
 
 
 

174. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

179. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

187. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

189. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

194. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

196. Discovery of penicillin was based on:

 
 
 
 

197. Most resistant spore in bacteria is:

 
 
 
 

198. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

200. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

205. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

207. Most primitive group of vascular plants are:

 
 
 
 

208. The root nodules of leguminous plants contain:

 
 
 
 

209. Amoeba is a member of the phylum:

 
 
 
 

210. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

212. Winged seeds are found in :

 
 
 
 

213. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

215. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

217. The lichens growing on rocks are called :

 
 
 
 

218. Bacteria are considered to be plants because they:

 
 
 
 

219. The flagella of Chlamydomonas are:

 
 
 
 

220. Embryo formation is not known in :

 
 
 
 

221. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

224. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

227. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

229. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

231. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

237. Late blight of potato is caused by:

 
 
 
 

238. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

242. Ulothrix produces :

 
 
 
 

243. An Hfr bacterium is one that contains:

 
 
 
 

244. In Cycas which structure is equivalent to stamen?

 
 
 
 

245. Cycas plant in appearance resembles :

 
 
 
 

246. The tallest moss in the world is :

 
 
 
 

247. The sporangia of Selaginella are attached:

 
 
 
 

248. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

251. Little leaf disease of Brinjal is caused by:

 
 
 
 

252. Enteric bacteria are those bacteria that live:

 
 
 
 

253. . Tapetum develops in:

 
 
 
 

254. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

256. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

260. Bacteria were first discovered by:

 
 
 
 

261. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

263. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

264. LSD is:

 
 
 
 

265. Protistan algae obtain their food as:

 
 
 
 

266. Total parasites belong to:

 
 
 
 

267. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

270. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

274. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

276. The zoospores of Ulothrix are :

 
 
 
 

277. In moss, peristomial teeth are:

 
 
 
 

278. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

282. 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:

 
 
 
 

283. The sexual reproductive organs in Rhizopus are:

 
 
 
 

284. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

285. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

287. The sporophyte of Riccia is :

 
 
 
 

288. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

293. Why is Cycas called a living fossil?

 
 
 
 

294. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

298. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

300. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

302. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

306. The young leaves of Cycas have :

 
 
 
 

307. Which is an exception to cell theory?

 
 
 
 

308. Mucilaginous canals in Cycas are found in :

 
 
 
 

309. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

313. Which bacteria convert nitrate into nitrogen?

 
 
 
 

314. Male gametes in Dryopteris are:

 
 
 
 

315. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

316. The vascular bundles of Cycas stem are :

 
 
 
 

317. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

320. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

322. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

325. Siphonogamy is found in:

 
 
 
 

326. Fern plants are:

 
 
 
 

327. Which is a fungicide?

 
 
 
 

328. 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:

 
 
 
 

329. Ergot is obtained from :

 
 
 
 

330. Multicellular and jacketed sex organs are found in :

 
 
 
 

331. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

337. What is a vector?

 
 
 
 

338. Most of the lichens are composed of :

 
 
 
 

339. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

342. In Gymnocarpeae the fruiting body is :

 
 
 
 

343. Ergot of rye is caused by:

 
 
 
 

344. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

346. Which have the largest antherozoid?

 
 
 
 

347. Select the wrong statement:

 
 
 
 

348. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

350. Polystelic condition is found in:

 
 
 
 

351. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

353. What is the role of nitrifying bacteria?

 
 
 
 

354. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. The seedless plants which possess vascular tissues are:

 
 
 
 

358. Roots are absent in :

 
 
 
 

359. Which of the following have algal zone?

 
 
 
 

360. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

362. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

364. Lichens are indicators of :

 
 
 
 

365. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

367. The two conjugating gametangia of Rhizopus are:

 
 
 
 

368. Facultative saprophyte is:

 
 
 
 

369. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

372. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

375. Cleavage polyembryony is found in :

 
 
 
 

376. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

382. Fruiting body of lichens is :

 
 
 
 

383. Green plants are classified as:

 
 
 
 

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

 
 
 
 

385. The antherozoids of Funaria are :

 
 
 
 

386. Climbers are found in genus:

 
 
 
 

387. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

389. The gametophyte produced by apospory is :

 
 
 
 

390. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

394. Asexual reproductive body of Volvox is called:

 
 
 
 

395. The chloroplast of Chlamydomonas are:

 
 
 
 

396. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

398. Seeds are characteristically found in :

 
 
 
 

399. Usually, bacteria reproduce by:

 
 
 
 

400. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

401. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

405. Selaginella differs from Moss in having:

 
 
 
 

406. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

408. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

410. Reproduction in Rhizopus is:

 
 
 
 

411. Lichens are ecologically important because :

 
 
 
 

412. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

415. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

417. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

422. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

425. Which of the following applies to Selaginella?

 
 
 
 

426. Most primitive embryophytes are placed in :

 
 
 
 

427. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

435. The microsporophylls on the cone of Cycas are :

 
 
 
 

436. Leprosy is caused by:

 
 
 
 

437. Halophiles are the bacteria that require for growth:

 
 
 
 

438. Bacteriophage consists of:

 
 
 
 

439. 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?

 
 
 
 

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

 
 
 
 

441. The central part of Funaria axis is :

 
 
 
 

442. The mode of nutrition of bacteria is usually:

 
 
 
 

443. Meristele of fern is:

 
 
 
 

444. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

445. Chemosynthetic bacteria are:

 
 
 
 

446. Mycoplasma are:

 
 
 
 

447. Water bloom is generally caused by :

 
 
 
 

448. In moss, calyptra is formed from:

 
 
 
 

449. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

452. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

454. Cycas is :

 
 
 
 

455. In Funaria :

 
 
 
 

456. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

458. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

460. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

462. Vascular cryptogams is the term used for:

 
 
 
 

463. Fern prothallus produces:

 
 
 
 

464. Bryophyta have a special character from other plants:

 
 
 
 

465. Etiology includes the study of :

 
 
 
 

466. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

468. Mycoplasmas are not viruses in nature because:

 
 
 
 

469. Most primitive kind of flower is represented by:

 
 
 
 

470. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

472. The chief characteristic of class Ascomycetes is:

 
 
 
 

473. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

480. Sexual reproduction in Rhizopus is by:

 
 
 
 

481. Maximum diversity of life forms occurs in :

 
 
 
 

482. White rust of crucifers is caused by:

 
 
 
 

483. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

485. Which of the following is true for viruses?

 
 
 
 

486. 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:

 
 
 
 

487. Germination of the seed of Pinus is :

 
 
 
 

488. The male gametes of Pinus are :

 
 
 
 

489. Vascular cryptogam is the term used for :

 
 
 
 

490. The smallest unit of classification is:

 
 
 
 

491. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

493. Placenta in fern is:

 
 
 
 

494. Yeast is a source of:

 
 
 
 

495. Which of the following are absent in Mycoplasma?

 
 
 
 

496. Zoogametes are not found in:

 
 
 
 

497. Ovary is absent in:

 
 
 
 

498. Who named prion?

 
 
 
 

499. Red rot of sugarcane is caused by :

 
 
 
 

500. Gametophyte is the main plant body in :

 
 
 
 

501. Antibiotics cure the disease by:

 
 
 
 

502. Which is an edible fungus?

 
 
 
 

503. In moss, stomata are found:

 
 
 
 

504. Spirogyra represents the :

 
 
 
 

505. Saccharomyces ludwigii ascus produces:

 
 
 
 

506. Mycoplasma was discovered by:

 
 
 
 

507. Bivalved siliceous shell or frustule occur in:

 
 
 
 

508. Common phycobiont in a lichen is :

 
 
 
 

509. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

511. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. Cycas is similar to a mustard plant :

 
 
 
 

516. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

518. One of the distinctive feature of Spirogyra is :

 
 
 
 

519. Most common type of conjugation in Spirogyra is :

 
 
 
 

520. Funaria is a Bryophyta because :

 
 
 
 

521. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

522. Iodine is obtained from :

 
 
 
 

523. The prothallus of fern represents the plant:

 
 
 
 

524. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

526. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

530. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

532. The plants of Funaria grow :

 
 
 
 

533. The alga, Spirogyra are found in :

 
 
 
 

534. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. Cycas is:

 
 
 
 

538. Lichens are pioneers of vegetation in a :

 
 
 
 

539. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

544. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

546. Which causes red tide?

 
 
 
 

547. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

549. The orders generally have the uniform endings:

 
 
 
 

550. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

553. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

555. Triple antigen injection or vaccine are for:

 
 
 
 

556. Protozoans are considered animals because these are:

 
 
 
 

557. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

558. Virus and bacteriophage are made-up of:

 
 
 
 

559. To which class Riccia belongs :

 
 
 
 

560. Helotism word is used for the symbiosis between :

 
 
 
 

561. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

563. Rhizoids of Riccia are :

 
 
 
 

564. Yeast grows more rapidly in:

 
 
 
 

565. In Pteris, the archegonia are present:

 
 
 
 

566. The Rhizopus gametes are formed in:

 
 
 
 

567. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

569. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

571. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

573. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

575. Most of the algae are :

 
 
 
 

576. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

580. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

583. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

585. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

587. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

589. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

591. Rhizopus and yeast are usually:

 
 
 
 

592. Which organisms are the oldest life forms?

 
 
 
 

593. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

595. Which is absent from the xylem of Cycas?

 
 
 
 

596. The tree fern is:

 
 
 
 

597. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

599. Bacteria are found everywhere, except:

 
 
 
 

600. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

602. Which among the following is a shrub?

 
 
 
 

603. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

605. Absorptive nutrition is:

 
 
 
 

606. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

608. TMV was isolated in crystalline form by:

 
 
 
 

609. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

611. Viroids have:

 
 
 
 

612. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

614. Yeast belongs to class:

 
 
 
 

615. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

620. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

623. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

625. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

627. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

632. The order generally ends with:

 
 
 
 

633. Photoautotrophic bacteria have:

 
 
 
 

634. Saccharomyces is used in:

 
 
 
 

635. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

637. Which is a redwood tree?

 
 
 
 

638. Downy mildew disease is caused by :

 
 
 
 

639. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

642. Cyanophage is a virus that attacks:

 
 
 
 

643. Cap cells are found in the filament of:

 
 
 
 

644. Which of the following statements is not correct?

 
 
 
 

645.

646. Lichens form the first community in

 
 
 
 

647. Pollination in Cycas takes place by :

 
 
 
 

648. Nannandria are:

 
 
 
 

649. Early blight of potato is caused by:

 
 
 
 

650. Which of the following are included in Tracheophyta?

 
 
 
 

651. The teeth of peristome of Funaria are :

 
 
 
 

652. Fruits are not found in:

 
 
 
 

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

 
 
 
 

654. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. Lichen show :

 
 
 
 

659. Embryophyta includes :

 
 
 
 

660. How a fern differs from a moss?

 
 
 
 

661. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

663. All archaebacteria lack:

 
 
 
 

664. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

673. Milk is converted to curd by:

 
 
 
 

674. The nucleus of bacteria is:

 
 
 
 

675. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

677. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

679. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

681. Pasteurized milk is:

 
 
 
 

682. The development of sporangium in Selaginella is:

 
 
 
 

683. The DNA of E coli is:

 
 
 
 

684. Lichens show :

 
 
 
 

685. Sexual reproduction of lichen is due to :

 
 
 
 

686. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

688. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

690. Ectocarpus produces:

 
 
 
 

691. The fungi used as food are:

 
 
 
 

692. Circular DNA is seen in:

 
 
 
 

693. Reproduction in Cycas takes place by :

 
 
 
 

694. In moss, reduction division occurs in :

 
 
 
 

695. How is moss different from fern?

 
 
 
 

696. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

698. Heterocysts are found in :

 
 
 
 

699. Rhizopus belongs to:

 
 
 
 

700. Anoxygenic photosynthesis occurs in:

 
 
 
 

701. The fern plant is:

 
 
 
 

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

 
 
 
 

703. To which country Antony van Leeuwenhoek belong?

 
 
 
 

704. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

705. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

707. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

710. Red rot of sugarcane is caused by:

 
 
 
 

711. Botulism is a:

 
 
 
 

712. Desired type of Cycas can be grown by:

 
 
 
 

713. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

716. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

718. Club moss and Peat moss belong to:

 
 
 
 

719. Where does meiosis occur in yeast?

 
 
 
 

720. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

723. Ethylene oxide is widely used to:

 
 
 
 

724. Disease resistant plant varieties can be produced by :

 
 
 
 

725.

726. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

728. Economic importance of bacteria lies in their being:

 
 
 
 

729. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

731. Which of the following does not contain chlorophyll?

 
 
 
 

732. In Funaria, calyptra is derived from :

 
 
 
 

733. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

735. The smallest bacterium is:

 
 
 
 

736. Which is a tautonym?

 
 
 
 

737.

738. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

744. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

746. All protozoans possess:

 
 
 
 

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

 
 
 
 

748. The leaves of Funaria are :

 
 
 
 

749. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

751. The chloroplast in Ulothrix is :

 
 
 
 

752. The genetic material of poxvirus is:

 
 
 
 

753. Most appropriate word for protozoans is:

 
 
 
 

754. Transfusion tissue is present in the leaflet of:

 
 
 
 

755. Pythium debaryanum is the causative agent of:

 
 
 
 

756. In Selaginella, the microsporangia are:

 
 
 
 

757. 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:

 
 
 
 

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

 
 
 
 

759. The fungi are mostly:

 
 
 
 

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

 
 
 
 

761. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

763. The archegonia in Selaginella develop on:

 
 
 
 

764. A gill of Agaricus:

 
 
 
 

765. Photosynthetic bacteria have:

 
 
 
 

766. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. The similarity between cyanobacteria and bacteria:

 
 
 
 

770. Viruses have:

 
 
 
 

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

 
 
 
 

772. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

775. Lichens reproduce by :

 
 
 
 

776. All algae have:

 
 
 
 

777. The spermatozoids of Cycas are :

 
 
 
 

778. Rhizophore of Selaginella is:

 
 
 
 

779. Bacteria which are spherical are called:

 
 
 
 

780. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

787. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

790. Embryophyta includes:

 
 
 
 

791. Viruses are considered to be:

 
 
 
 

792. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

794. Azolla and Salvinia both are:

 
 
 
 

795. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

797. 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?

 
 
 
 

798. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

800. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. Cryptogams include :

 
 
 
 

805. Gram stain is used to:

 
 
 
 

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

 
 
 
 

807. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

808. Which is not found in bacteria?

 
 
 
 

809. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

813. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

815. In a bacteriophage, DNA is present in:

 
 
 
 

816. The gametophyte of fern bears:

 
 
 
 

817. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

820. What is mycorrhiza?

 
 
 
 

821. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

823. Heterospory and ligulate leaves are a feature of:

 
 
 
 

824. Pinus is:

 
 
 
 

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

 
 
 
 

826. Citrus canker is caused by :

 
 
 
 

827. The chromosomal number in:

 
 
 
 

828. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

829. In Herpes virus DNA is:

 
 
 
 

830. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

834. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

836. What is absent in Deuteromycetes?

 
 
 
 

837. Aflatoxin is produced as a product in :

 
 
 
 

838. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

839. Which part of Riccia bears nurse cells?

 
 
 
 

840. The term stele was given by:

 
 
 
 

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

 
 
 
 

842. Which class of Protozoa includes all parasitic forms?

 
 
 
 

843. The sporangium of fern contains nearly:

 
 
 
 

844. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

846. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

848. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

850. Black rust of wheat is caused by:

 
 
 
 

851. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

853. 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:

 
 
 
 

854. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

856. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

860. 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?

 
 
 
 

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

 
 
 
 

862. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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