Quiz_Random

1. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Acellular slime mold is/are:

 
 
 
 

9. Most primitive kind of flower is represented by:

 
 
 
 

10. Common phycobiont in a lichen is :

 
 
 
 

11. In Pteris, the roots are:

 
 
 
 

12. Ovules are not found enclosed in ovary in :

 
 
 
 

13. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

15. Cell walls of Gram-positive bacteria contain:

 
 
 
 

16. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

18. The largest known bacterium is:

 
 
 
 

19. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

21. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Funaria is :

 
 
 
 

25. Funaria is :

 
 
 
 

26. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Vegetative reproduction in Cycas is by means of :

 
 
 
 

30. Gram stain is used to:

 
 
 
 

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

 
 
 
 

32. Which is an edible fungus?

 
 
 
 

33. Embryophyta includes :

 
 
 
 

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

 
 
 
 

35. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. Bacteria growing on synthetic medium are called:

 
 
 
 

39. Most appropriate word for protozoans is:

 
 
 
 

40. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

42. Bacteria differ from viruses in being sensitive to:

 
 
 
 

43. Fern prothallus produces:

 
 
 
 

44. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

46. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

48. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Ulothrix produces :

 
 
 
 

53. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. The Rhizopus is:

 
 
 
 

60. Fruiting body of lichens is :

 
 
 
 

61. Pasteurized milk is:

 
 
 
 

62. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

64. Photosynthetic protists belong to:

 
 
 
 

65. In Cycas the fertilization is:

 
 
 
 

66. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

68. Viroids have:

 
 
 
 

69. Who discovered heterothallism in fungi?

 
 
 
 

70. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

79. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

80. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

82. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Which of the following are included in Tracheophyta?

 
 
 
 

86. Usually, bacteria reproduce by:

 
 
 
 

87. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

89. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

91. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

102. Which one of the following statement is wrong?

 
 
 
 

103. The largest alga is:

 
 
 
 

104. Penicillin is obtained from:

 
 
 
 

105. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

107. Pollination in Pinus is :

 
 
 
 

108. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

110. Which is not true for Escherichia coli?

 
 
 
 

111. Kuru, a human disease is caused by:

 
 
 
 

112. Mycoplasmas are not viruses in nature because:

 
 
 
 

113. Methanogens belong to:

 
 
 
 

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

 
 
 
 

115. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

117. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

119. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

121. Most resistant spore in bacteria is:

 
 
 
 

122. Lichens form the first community in

 
 
 
 

123. White rust of crucifers is caused by:

 
 
 
 

124. Germination of the seed of Pinus is :

 
 
 
 

125. The gametophyte of moss has distinct phases :

 
 
 
 

126. Which is the correct statement about Selaginella?

 
 
 
 

127. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

132. The term stele was given by:

 
 
 
 

133. Gymnosperms could also be called as:

 
 
 
 

134. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

137. Germ theory of disease was proposed by:

 
 
 
 

138. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

140. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

143. In angiosperms double fertilization represents:

 
 
 
 

144. Select the wrong statement:

 
 
 
 

145. Lichens are the indicator of pollution :

 
 
 
 

146. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

147. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

149. Male gametophyte of Selaginella is found:

 
 
 
 

150. Funaria can be differentiated from Cycas :

 
 
 
 

151. To which country Antony van Leeuwenhoek belong?

 
 
 
 

152. Why is Cycas called a living fossil?

 
 
 
 

153. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

156. The phloem of vascular system of Cycas is :

 
 
 
 

157. Ovary is absent in :

 
 
 
 

158. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

160. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

162. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

167. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

170. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. Nitrifying bacteria play an important role by converting:

 
 
 
 

174. The antibiotic is obtained from:

 
 
 
 

175. Green plants are classified as:

 
 
 
 

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

 
 
 
 

177. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

179. In moss, stomata are found:

 
 
 
 

180. Mycoplasma are sensitive to:

 
 
 
 

181. The roots of Cycas are :

 
 
 
 

182. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

184. The fern plant is:

 
 
 
 

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

 
 
 
 

186. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

191. Pteridophyta are also called:

 
 
 
 

192. Soil fertility is lost by the activities of:

 
 
 
 

193. The development of sporangium in Selaginella is:

 
 
 
 

194. In Cycas which structure is equivalent to stamen?

 
 
 
 

195. Cleavage polyembryony is found in :

 
 
 
 

196. Among the algae kelps are :

 
 
 
 

197. Which condition is found in Cycas?

 
 
 
 

198. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. Maximum diversity of life forms occurs in :

 
 
 
 

205. The leaves of Funaria are :

 
 
 
 

206. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

208. Oswald Tippo’s classification was based on :

 
 
 
 

209. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

211. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

212. Citrus canker is caused by:

 
 
 
 

213. 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?

 
 
 
 

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

 
 
 
 

215. The male gametes of Pinus are :

 
 
 
 

216. Sporophyte of Funaria is :

 
 
 
 

217. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

219. Which of the following is true for Selaginella?

 
 
 
 

220. The smallest bacterium is:

 
 
 
 

221. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

224. The disease apple scab is caused by:

 
 
 
 

225. The young leaves of Cycas have :

 
 
 
 

226. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

227. The archegonia of Selaginella are differentiated by:

 
 
 
 

228. Leprosy is caused by:

 
 
 
 

229. 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:

 
 
 
 

230. Heterosporous pteridophytes always form:

 
 
 
 

231. Pinus is:

 
 
 
 

232. In dinoflagellates, the two flagella are:

 
 
 
 

233. Red rot of sugarcane is caused by:

 
 
 
 

234. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

236. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

237.

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

 
 
 
 

239. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

241. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

243. How is moss different from fern?

 
 
 
 

244. Ergot of rye is caused by:

 
 
 
 

245. Protists which are diploid reproduce sexually by:

 
 
 
 

246. Chemosynthetic bacteria are:

 
 
 
 

247. Fairy ring is the name given to:

 
 
 
 

248. Plasmids are:

 
 
 
 

249. Synzoospore is produced in:

 
 
 
 

250. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

253. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. Virus and bacteriophage are made-up of:

 
 
 
 

257. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

258. Cycas is:

 
 
 
 

259. Liverworts are included in :

 
 
 
 

260. Placenta in fern is:

 
 
 
 

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

 
 
 
 

262. Enteric bacteria are those bacteria that live:

 
 
 
 

263. Spores of which plants have chloroplast:

 
 
 
 

264. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

269. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

271. Pollination drop is:

 
 
 
 

272. In tracheophyta:

 
 
 
 

273. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

275. Late blight of potato is caused by :

 
 
 
 

276. The sporangia of Selaginella are attached:

 
 
 
 

277. Rhizopus and yeast are usually:

 
 
 
 

278. Facultative parasite is:

 
 
 
 

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

 
 
 
 

280. Mucilaginous canals in Cycas are found in :

 
 
 
 

281. All archaebacteria lack:

 
 
 
 

282. In Funaria :

 
 
 
 

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

 
 
 
 

284. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

287. Which of the following is a parasitic algae?

 
 
 
 

288. What is streptomycin?

 
 
 
 

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

 
 
 
 

290. Isomorphic type alternation of generation is found in:

 
 
 
 

291. The two conjugating gametangia of Rhizopus are:

 
 
 
 

292. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

295. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

297. Cocci types of bacteria are:

 
 
 
 

298. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

300. Which is a gametophytic tissue?

 
 
 
 

301. Select the wrong statement:

 
 
 
 

302. Metulae are found in:

 
 
 
 

303. Lichens show :

 
 
 
 

304. Funaria are commonly found :

 
 
 
 

305. Agar-agar is obtained from:

 
 
 
 

306. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

308. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

311. Vascular tissue is found in :

 
 
 
 

312. Leaf spot of groundnut is caused by :

 
 
 
 

313. Lichens are indicators of :

 
 
 
 

314. In Cycas:

 
 
 
 

315. The genetic material of poxvirus is:

 
 
 
 

316. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

317. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

319. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

322. Black rust of wheat is caused by:

 
 
 
 

323. Helotism word is used for the symbiosis between :

 
 
 
 

324. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

326. Antibiotics cure the disease by:

 
 
 
 

327. Linnaeus is credited with introducing:

 
 
 
 

328. In moss, reduction division occurs in :

 
 
 
 

329. The lambda phase is a:

 
 
 
 

330. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

332. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

337. Aflatoxin is produced by:

 
 
 
 

338. Photoautotrophic bacteria have:

 
 
 
 

339. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

341. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

343. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

345. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

347. What is mycorrhiza?

 
 
 
 

348. Pinus gerardiana is :

 
 
 
 

349. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Botulism is a:

 
 
 
 

353. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

355. Cryptogams include :

 
 
 
 

356. Heterotrichous habit means :

 
 
 
 

357. Bacteriophage consists of:

 
 
 
 

358. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. Typhoid in man is caused by:

 
 
 
 

362. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

364. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

368. Viruses have:

 
 
 
 

369. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

371. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

374. Select the correct statement: (NEET 2016)

 
 
 
 

375. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

377. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

382. The fungi are usually:

 
 
 
 

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

 
 
 
 

384. The truncated cone of HIV consists of:

 
 
 
 

385. Roots are absent in :

 
 
 
 

386. Each chloroplast in Spirogyra bears :

 
 
 
 

387. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

389. The rhizoids of Funaria are :

 
 
 
 

390. Spirogyra differs from moss protonema in having :

 
 
 
 

391. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

393. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

395. 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?

 
 
 
 

396. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

398. Meiosis in Ulothrix takes place:

 
 
 
 

399. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

402. The group algae possesses representatives belonging to kingdom:

 
 
 
 

403. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

405. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

407. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Small epidermal swellings due to infection are called :

 
 
 
 

414. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

416. Cycas plant in appearance resembles :

 
 
 
 

417. Nannandria are:

 
 
 
 

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

 
 
 
 

419. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

421. Which of the following shows heterotrichous habit?

 
 
 
 

422. The ascus of yeast contains:

 
 
 
 

423. Pinus microsporophyll bears:

 
 
 
 

424. The microsporophylls on the cone of Cycas are :

 
 
 
 

425. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

427. Sporophyte of fern is:

 
 
 
 

428. Discovery of penicillin was based on:

 
 
 
 

429. Male gametes in Dryopteris are:

 
 
 
 

430. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

432. Which of the following is a heterosporous pteridophyte?

 
 
 
 

433. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

435. Reproduction in Rhizopus is:

 
 
 
 

436. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

442. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

446. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

452. The tree fern is:

 
 
 
 

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

 
 
 
 

454. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

456. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

457. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

458. Bentham and Hooker placed gymnosperms:

 
 
 
 

459. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

461. Spermatophyta are characterized by producing:

 
 
 
 

462. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

464. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

465. The mycelium of Rhizopus is:

 
 
 
 

466. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

470. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

473. Green plants are classified as :

 
 
 
 

474. The gametophyte produced by apospory is :

 
 
 
 

475. Cycas revoluta is widely grown as :

 
 
 
 

476. The gametophyte of fern is as:

 
 
 
 

477. Ergot is obtained from :

 
 
 
 

478. Lichen show :

 
 
 
 

479. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. The chromosomal number in:

 
 
 
 

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

 
 
 
 

484. To which class Riccia belongs :

 
 
 
 

485. One of the distinctive feature of Spirogyra is :

 
 
 
 

486. Which of the following does not contain chlorophyll?

 
 
 
 

487. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

488. Asexual reproductive body of Volvox is called:

 
 
 
 

489. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

493. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

496. Wine turns sour because of:

 
 
 
 

497. Chemosynthetic bacteria are:

 
 
 
 

498. The coralloid roots are :

 
 
 
 

499. The leaves of Funaria are :

 
 
 
 

500. Rhizophore of Selaginella is:

 
 
 
 

501. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

503. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

505. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

509. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

511. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

515. Mycoplasma contains:

 
 
 
 

516. Protistan algae obtain their food as:

 
 
 
 

517. Which of the following is a monocot?

 
 
 
 

518. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

520. Oswald Tippo’s classification is:

 
 
 
 

521. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

524. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

529. Some bacteria cannot be killed easily because of:

 
 
 
 

530. In Selaginella, the microsporangia are:

 
 
 
 

531. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

534. Water-net is the name of:

 
 
 
 

535. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

538. What is a vector?

 
 
 
 

539. Which bacteria convert nitrate into nitrogen?

 
 
 
 

540. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

546. Mycoplasma was discovered by:

 
 
 
 

547. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

551. Which of the following are included in Tracheophyta?

 
 
 
 

552. Red rot of sugarcane is caused by :

 
 
 
 

553. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

555. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

558. The fungi used as food are:

 
 
 
 

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

 
 
 
 

560. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

561. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

563. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

565. Which of the following lichens is harmful?

 
 
 
 

566. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

568. Late blight of potato is caused by:

 
 
 
 

569. Centric discoid form of diatom is:

 
 
 
 

570. Downy mildew disease is caused by :

 
 
 
 

571. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

573. Ovules are not found enclosed in ovary in :

 
 
 
 

574. Cycas is :

 
 
 
 

575. Fern plants are:

 
 
 
 

576. Pythium debaryanum is the causative agent of:

 
 
 
 

577. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

579. . Tapetum develops in:

 
 
 
 

580. Acetobacter is useful in:

 
 
 
 

581. Which class of Protozoa includes all parasitic forms?

 
 
 
 

582. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

585. Virion refers to:

 
 
 
 

586. A gill of Agaricus:

 
 
 
 

587. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

589. Which is a fungicide?

 
 
 
 

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

 
 
 
 

591. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

593. Yeast belongs to class:

 
 
 
 

594. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

599. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

604. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

608. Facultative saprophyte is:

 
 
 
 

609. Heterospory is the production of:

 
 
 
 

610. Which of the following applies to Selaginella?

 
 
 
 

611. Interferon is a:

 
 
 
 

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

 
 
 
 

613. 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:

 
 
 
 

614. The similarity between cyanobacteria and bacteria:

 
 
 
 

615. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

617. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

619. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

622. Embryophyta includes:

 
 
 
 

623. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

625. Ovary is absent in:

 
 
 
 

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

 
 
 
 

627. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

630. Which one of the following is a monocot?

 
 
 
 

631. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

633. Which fixes atmospheric nitrogen?

 
 
 
 

634. Which is an exception to cell theory?

 
 
 
 

635. The prothallus of fern is:

 
 
 
 

636. Selaginella differs from Moss in having:

 
 
 
 

637. 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:

 
 
 
 

638. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

639. Pythium debaryanum is the causative agent of:

 
 
 
 

640. Multicellular and jacketed sex organs are found in :

 
 
 
 

641. NBG of Lucknow is now named as:

 
 
 
 

642.

643. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

645. Pteridophytes are also known as :

 
 
 
 

646. The chloroplast in Ulothrix is :

 
 
 
 

647. Cycas is different from mango in :

 
 
 
 

648. What are Cyanobacteria?

 
 
 
 

649. 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:

 
 
 
 

650. Which of the following have a prokaryotic cell?

 
 
 
 

651. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

653. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

656. All protozoans possess:

 
 
 
 

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

 
 
 
 

658. Special feature of pollen grains of Pinus is :

 
 
 
 

659. The sporophyte of Riccia is represented by :

 
 
 
 

660. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

663. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

665. Fern phloem lacks:

 
 
 
 

666. Woody climbers are known as :

 
 
 
 

667. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

670. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

672. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

674. The source of litmus is :

 
 
 
 

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

 
 
 
 

676. The Rhizopus gametes are formed in:

 
 
 
 

677. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

679. The sporangiophores in Rhizopus are:

 
 
 
 

680. True sexuality is not found in:

 
 
 
 

681. What is the role of nitrifying bacteria?

 
 
 
 

682. The spur of Pinus roxburghii has :

 
 
 
 

683. Seeds are characteristically found in:

 
 
 
 

684. First animal pathogenic virus was discovered by:

 
 
 
 

685. Climbers are found in genus:

 
 
 
 

686. Clostridium can:

 
 
 
 

687. The plants of Funaria grow :

 
 
 
 

688. 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:

 
 
 
 

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

 
 
 
 

690. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

692. The gametophyte of fern bears:

 
 
 
 

693. Fruits are not found in:

 
 
 
 

694. Azolla and Salvinia both are:

 
 
 
 

695. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

698. Most primitive embryophytes are placed in :

 
 
 
 

699. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

701. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

708. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

711. Fern prothallus is:

 
 
 
 

712. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

714. LSD is:

 
 
 
 

715. 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:

 
 
 
 

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

 
 
 
 

717. The ferns are usually found:

 
 
 
 

718. The alga, Spirogyra are found in :

 
 
 
 

719. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

721. Yeast is a source of:

 
 
 
 

722. Which is a redwood tree?

 
 
 
 

723. Which have the largest antherozoid?

 
 
 
 

724. Meristele of fern is:

 
 
 
 

725. Amoeba is a member of the phylum:

 
 
 
 

726. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. 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:

 
 
 
 

730. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

733.

734. The upper region of moss capsule is :

 
 
 
 

735. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

741. The chloroplast of Chlamydomonas are:

 
 
 
 

742. Bacteria which are spherical are called:

 
 
 
 

743. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

747. Lichens are ecologically important because :

 
 
 
 

748. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

749. The sori in Dryopteris are found on:

 
 
 
 

750. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

753. Fruits are not found in Cycas because:

 
 
 
 

754. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. The leaf of Cycas shows:

 
 
 
 

758. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

760. The most primitive vascular plants is:

 
 
 
 

761. Pasteur is famous for his:

 
 
 
 

762. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

767. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

769. Which of the following statement is correct?

 
 
 
 

770. Chief constituents of bordeaux mixture are :

 
 
 
 

771. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

774. All algae have:

 
 
 
 

775. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

778. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

780. Viruses are commonly transmitted in plants through:

 
 
 
 

781. Total parasites belong to:

 
 
 
 

782. Yeast grows more rapidly in:

 
 
 
 

783. The teeth of peristome of Funaria are :

 
 
 
 

784. Simple polyembryony is found in :

 
 
 
 

785. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

787.

 

788. Bacteria were first discovered by:

 
 
 
 

789. Heterocysts are found in :

 
 
 
 

790. Winged pollen grains are found in :

 
 
 
 

791. Psilotum is:

 
 
 
 

792. Fruits are not found in :

 
 
 
 

793. How a fern differs from a moss?

 
 
 
 

794. Banana bunchy top is caused by :

 
 
 
 

795. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

799. The order generally ends with:

 
 
 
 

800. Enzymes are absent in:

 
 
 
 

801. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

811. Spermatophyta are characterized by producing:

 
 
 
 

812. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

814. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

816. Number of capsomeres forming capsid of TMV is:

 
 
 
 

817. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

819. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

821. The archegonia in Selaginella develop on:

 
 
 
 

822. Desired type of Cycas can be grown by:

 
 
 
 

823. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

825. Mycoplasma are:

 
 
 
 

826. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

828. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

830. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

831. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

832. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

835. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

836. Cap cells are found in the filament of:

 
 
 
 

837. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

842. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

844. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

846. Seeds are characteristically found in :

 
 
 
 

847. Reproduction in Cycas takes place by :

 
 
 
 

848. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

852. The middle sterile part of capsule is called:

 
 
 
 

853. The megaspore of Selaginella on germination produces:

 
 
 
 

854. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

856. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

860. Polystelic condition is found in:

 
 
 
 

861. Choose the correct statement about Spirogyra:

 
 
 
 

862. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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