Quiz_Random

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

 
 
 
 

2. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

4. Most of the algae are :

 
 
 
 

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

 
 
 
 

6. Fern phloem lacks:

 
 
 
 

7. Pollination in Pinus is :

 
 
 
 

8. The sporangium of fern contains nearly:

 
 
 
 

9. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

11. Infective part of virus was discovered by:

 
 
 
 

12. Vascular cryptogams is the term used for:

 
 
 
 

13. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

18. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

20. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

22. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. All archaebacteria lack:

 
 
 
 

29. Endemic plants are characterised by their:

 
 
 
 

30. Sporophyte of fern is:

 
 
 
 

31. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

36. The chloroplast of Chlamydomonas are:

 
 
 
 

37. Chemosynthetic bacteria are:

 
 
 
 

38. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

43. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

45. Mycoplasma contains:

 
 
 
 

46. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

48. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

55. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Proembryo in Pinus is :

 
 
 
 

59. 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?

 
 
 
 

60. The first to isolate a plant virus was:

 
 
 
 

61. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Special feature of pollen grains of Pinus is :

 
 
 
 

65. Simple polyembryony is found in :

 
 
 
 

66. In Cycas microsporangia are borne on:

 
 
 
 

67. The largest known bacterium is:

 
 
 
 

68. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Who among the following discovered virus?

 
 
 
 

72. Methanogens belong to:

 
 
 
 

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

 
 
 
 

74. The mode of nutrition of bacteria is usually:

 
 
 
 

75. Cycas plant in appearance resembles :

 
 
 
 

76. The fern plant is:

 
 
 
 

77. Which condition is found in Cycas?

 
 
 
 

78.

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

 
 
 
 

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

 
 
 
 

81. Bacteriophages have been used as:

 
 
 
 

82. Cell walls of Gram-positive bacteria contain:

 
 
 
 

83. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. The archegonia in Selaginella develop on:

 
 
 
 

89. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Aflatoxin is produced by:

 
 
 
 

95. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

97.

 

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

 
 
 
 

99. The fungi are usually:

 
 
 
 

100. The prothallus of fern represents the plant:

 
 
 
 

101. Etiology includes the study of :

 
 
 
 

102. An Hfr bacterium is one that contains:

 
 
 
 

103. Nannandria are:

 
 
 
 

104. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

106. Funaria is :

 
 
 
 

107. What is mycorrhiza?

 
 
 
 

108. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Lichens reproduce by :

 
 
 
 

113. Lichens form the first community in

 
 
 
 

114. Reproduction in Rhizopus is:

 
 
 
 

115. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

117. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

123. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

125. The flagella of Chlamydomonas are:

 
 
 
 

126. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

129. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

132. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

136.

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

 
 
 
 

138. Green plants are classified as :

 
 
 
 

139. Heterotrichous habit means :

 
 
 
 

140. Select the wrong statement:

 
 
 
 

141. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

144. The fungi are mostly:

 
 
 
 

145. Sexual reproduction of lichen is due to :

 
 
 
 

146. The vascular bundles of Cycas stem are :

 
 
 
 

147. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

149. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

150. The zoospores of Ulothrix are :

 
 
 
 

151. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

153. Which is a gametophytic tissue?

 
 
 
 

154. Ovary is absent in :

 
 
 
 

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

 
 
 
 

156. Cryptogams include :

 
 
 
 

157. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

161. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

164. Water bloom is generally caused by :

 
 
 
 

165. The genetic material of poxvirus is:

 
 
 
 

166. Selaginella differs from Moss in having:

 
 
 
 

167. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

169. Which is not true for Escherichia coli?

 
 
 
 

170. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

171. Funaria is :

 
 
 
 

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

 
 
 
 

173. The ascus of yeast contains:

 
 
 
 

174. Pasteurization of milk involves heating for:

 
 
 
 

175. The seedless plants which possess vascular tissues are:

 
 
 
 

176. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

178. Fruiting body of lichens is :

 
 
 
 

179. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

182. Choose the correct statement about Spirogyra:

 
 
 
 

183. Total parasites belong to:

 
 
 
 

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

 
 
 
 

185. Circular DNA is seen in:

 
 
 
 

186. Pasteurized milk is:

 
 
 
 

187. The smallest bacterium is:

 
 
 
 

188. Number of capsomeres forming capsid of TMV is:

 
 
 
 

189. Climbers are found in genus:

 
 
 
 

190. Protistan algae obtain their food as:

 
 
 
 

191. The source of litmus is :

 
 
 
 

192. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

194. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

197. Viruses have:

 
 
 
 

198. Citrus canker is caused by:

 
 
 
 

199. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

202. Pollination drop is:

 
 
 
 

203. Funaria are commonly found :

 
 
 
 

204. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

206. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

211. The gametophyte of fern is as:

 
 
 
 

212. The leaves of Funaria are :

 
 
 
 

213. What is special feature of fern archegonia?

 
 
 
 

214. 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:

 
 
 
 

215. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

219. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Seeds are characteristically found in:

 
 
 
 

224. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

226. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

227. Bacteria are placed under:

 
 
 
 

228. Among the algae kelps are :

 
 
 
 

229. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

231. What are plasmids?

 
 
 
 

232. Bacteria differ from viruses in being sensitive to:

 
 
 
 

233. Most primitive embryophytes are placed in :

 
 
 
 

234. Which of the following have algal zone?

 
 
 
 

235. Which is an exception to cell theory?

 
 
 
 

236. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

238. The spur of Pinus roxburghii has :

 
 
 
 

239. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

241. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

244. Rice, pea, potato are :

 
 
 
 

245. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

249. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

251. Mostly type of zygospore in Ulothrix is:

 
 
 
 

252. Bryophyta have been placed in cryptogams because:

 
 
 
 

253. In Cycas the fertilization is:

 
 
 
 

254. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

256. Virion refers to:

 
 
 
 

257. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

259. Which part of Riccia bears nurse cells?

 
 
 
 

260. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

262. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

264. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. The similarity between cyanobacteria and bacteria:

 
 
 
 

268. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

270. Zoogametes are not found in:

 
 
 
 

271. The role of meiosis is for:

 
 
 
 

272. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

274. Bentham and Hooker placed gymnosperms:

 
 
 
 

275. Pythium debaryanum is the causative agent of:

 
 
 
 

276. Triple antigen injection or vaccine are for:

 
 
 
 

277. Rhizopus belongs to:

 
 
 
 

278. Lichens show :

 
 
 
 

279. John Hutchinson divided dicots into two divisions:

 
 
 
 

280. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

282. Where does meiosis occur in yeast?

 
 
 
 

283. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

285. The rhizoids of Funaria are :

 
 
 
 

286. In Gymnosperms endosperm is a:

 
 
 
 

287. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

292. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

294. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

297. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

299. The male gametes of Pinus are :

 
 
 
 

300. Cleavage polyembryony is found in :

 
 
 
 

301. Banana bunchy top is caused by :

 
 
 
 

302. Ginkgo biloba is a:

 
 
 
 

303. Gram stain is used to:

 
 
 
 

304. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

307. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

309. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

311. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

314. LSD is:

 
 
 
 

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

 
 
 
 

316. Pollination in Cycas takes place by :

 
 
 
 

317. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

319. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

321. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

323. Bacteria are considered to be plants because they:

 
 
 
 

324. Red rot of sugarcane is caused by :

 
 
 
 

325. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

327. The smallest unit of classification is:

 
 
 
 

328. Ethylene oxide is widely used to:

 
 
 
 

329. Generic name of mango is:

 
 
 
 

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

 
 
 
 

331. Heterocysts are found in :

 
 
 
 

332. Roots are absent in :

 
 
 
 

333. In binomial system most of the words are:

 
 
 
 

334. The two conjugating gametangia of Rhizopus are:

 
 
 
 

335. In tracheophyta:

 
 
 
 

336. Which is not found in bacteria?

 
 
 
 

337. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

340. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

342. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

345. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

346. Enteric bacteria are those bacteria that live:

 
 
 
 

347. Spermatophyta are characterized by producing:

 
 
 
 

348. Cycas is similar to a mustard plant :

 
 
 
 

349. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

356. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

358. Diphtheria is caused by:

 
 
 
 

359. Select the wrong statement:

 
 
 
 

360. Most primitive group of vascular plants are:

 
 
 
 

361. Centric discoid form of diatom is:

 
 
 
 

362. Which among the following is a shrub?

 
 
 
 

363. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

365. Most of the lichens are composed of :

 
 
 
 

366. The chloroplast in Ulothrix is :

 
 
 
 

367. Spores of which plants have chloroplast:

 
 
 
 

368. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

370. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

372. Iodine is obtained from :

 
 
 
 

373. Smallpox is caused by:

 
 
 
 

374. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

376. Which of the following statements is not correct?

 
 
 
 

377. Transfusion tissue is present in the leaflet of:

 
 
 
 

378. Lichens are pioneers of vegetation in a :

 
 
 
 

379. Virus and bacteriophage are made-up of:

 
 
 
 

380. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

383. The truncated cone of HIV consists of:

 
 
 
 

384. Sporophyte of Funaria is :

 
 
 
 

385. The archegonia of Selaginella are differentiated by:

 
 
 
 

386. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

388. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

391. Photoautotrophic bacteria have:

 
 
 
 

392. The largest alga is:

 
 
 
 

393. One of the distinctive feature of Spirogyra is :

 
 
 
 

394. Agar-agar is obtained from:

 
 
 
 

395. Botulism is a:

 
 
 
 

396. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

399. Winged pollen grains are found in :

 
 
 
 

400. Soil fertility is lost by the activities of:

 
 
 
 

401. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. Most appropriate word for protozoans is:

 
 
 
 

408. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

412. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

416. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

418. Little leaf disease of Brinjal is caused by:

 
 
 
 

419. Chief constituents of bordeaux mixture are :

 
 
 
 

420. The prothallus of fern is:

 
 
 
 

421. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

423. Ovary is absent in:

 
 
 
 

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

 
 
 
 

425. Meristele of fern is:

 
 
 
 

426. Rhizopus and yeast are usually:

 
 
 
 

427. How a fern differs from a moss?

 
 
 
 

428. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

430. Milk is converted to curd by:

 
 
 
 

431. Majority of lichens are :

 
 
 
 

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

 
 
 
 

433. Fertility of the soil is increased by:

 
 
 
 

434. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

435. Water-net is the name of:

 
 
 
 

436. Protozoans are considered animals because these are:

 
 
 
 

437. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

440. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

442. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

443. Synzoospore is produced in:

 
 
 
 

444. The coralloid roots are :

 
 
 
 

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

 
 
 
 

446. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

448.

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

 
 
 
 

450. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

453. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

459. Plasmids are:

 
 
 
 

460. 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?

 
 
 
 

461. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. Yeast grows more rapidly in:

 
 
 
 

466. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

467. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

469. Select the correct statement: (NEET 2016)

 
 
 
 

470. The young leaves of Cycas have :

 
 
 
 

471. Some bacteria cannot be killed easily because of:

 
 
 
 

472. Multicellular and jacketed sex organs are found in :

 
 
 
 

473. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

479. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

480. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

483. Wine turns sour because of:

 
 
 
 

484. All protozoans possess:

 
 
 
 

485. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

491. Spermatophyta are characterized by producing:

 
 
 
 

492. Lichens reproduce by :

 
 
 
 

493. Quarantine regulations are concerned with:

 
 
 
 

494. The megaspore of Selaginella on germination produces:

 
 
 
 

495. Fruits are not found in Cycas because:

 
 
 
 

496. In Gymnocarpeae the fruiting body is :

 
 
 
 

497. In moss, calyptra is formed from:

 
 
 
 

498. Heterospory is the production of:

 
 
 
 

499. The nucleus of bacteria is:

 
 
 
 

500. All algae have:

 
 
 
 

501. Some biologists have used the term Mycetozoa for:

 
 
 
 

502. Ulothrix produces :

 
 
 
 

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

 
 
 
 

504. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. Seeds are characteristically found in :

 
 
 
 

508. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

510. In Selaginella, the microsporangia are:

 
 
 
 

511. Mycoplasmas are not viruses in nature because:

 
 
 
 

512. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

514. Common phycobiont in a lichen is :

 
 
 
 

515. The teeth of peristome of Funaria are :

 
 
 
 

516. Cocci types of bacteria are:

 
 
 
 

517. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

522. The lambda phase is a:

 
 
 
 

523. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

530. Ergot of rye is caused by:

 
 
 
 

531. Embryophyta includes :

 
 
 
 

532. Downy mildew disease is caused by :

 
 
 
 

533. Black rust of wheat is caused by:

 
 
 
 

534. In Cycas which structure is equivalent to stamen?

 
 
 
 

535. Mucilaginous canals in Cycas are found in :

 
 
 
 

536. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

538. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

540. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

542. In moss, peristomial teeth are:

 
 
 
 

543. 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:

 
 
 
 

544. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

547. The ferns are usually found:

 
 
 
 

548. Lichens are ecologically important because :

 
 
 
 

549. Oswald Tippo’s classification is:

 
 
 
 

550. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

552. The fungi used as food are:

 
 
 
 

553. TMV was isolated in crystalline form by:

 
 
 
 

554. Iodine is obtained from:

 
 
 
 

555. Which organisms are the oldest life forms?

 
 
 
 

556. Pasteur is famous for his:

 
 
 
 

557. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

559. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

561. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

563. Sleeping sickness disease in man is caused by:

 
 
 
 

564. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

566. The upper region of moss capsule is :

 
 
 
 

567. Disease resistant plant varieties can be produced by :

 
 
 
 

568. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

570. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

571. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

573. Bacteria growing on synthetic medium are called:

 
 
 
 

574. Heterospory and ligulate leaves are a feature of:

 
 
 
 

575. Heterosporous pteridophytes always form:

 
 
 
 

576. The leaves of Funaria are :

 
 
 
 

577. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

579. Protists which are diploid reproduce sexually by:

 
 
 
 

580. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

583. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

585. The most important property of yeast is:

 
 
 
 

586. The order generally ends with:

 
 
 
 

587. What are Cyanobacteria?

 
 
 
 

588. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

592. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

594. In dinoflagellates, the two flagella are:

 
 
 
 

595. In moss, reduction division occurs in :

 
 
 
 

596. The central part of Funaria axis is :

 
 
 
 

597. Vascular tissue is found in :

 
 
 
 

598. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

603. The antibiotic is obtained from:

 
 
 
 

604. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

606. Facultative parasite is:

 
 
 
 

607. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

611. The sporangia of Selaginella are attached:

 
 
 
 

612. Linnaeus is credited with introducing:

 
 
 
 

613. Pseudomycelium is found in:

 
 
 
 

614. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

616. The leaf of Cycas shows:

 
 
 
 

617. Green plants are classified as:

 
 
 
 

618. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

622. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

625. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

627. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

630. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

632. Lichens are indicators of :

 
 
 
 

633. Liverworts are included in :

 
 
 
 

634. Sometimes the bacterial cell is enclosed in:

 
 
 
 

635. Azolla growing in paddy fields helps in:

 
 
 
 

636. E coli is a:

 
 
 
 

637. Antibiotics cure the disease by:

 
 
 
 

638. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

640. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

642. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

646. Which causes red tide?

 
 
 
 

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

 
 
 
 

648. In Pteris, the roots are:

 
 
 
 

649. Most common type of conjugation in Spirogyra is :

 
 
 
 

650. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

653. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

657. The disease apple scab is caused by:

 
 
 
 

658. The most primitive vascular plants is:

 
 
 
 

659. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

661. Which of the following are absent in Mycoplasma?

 
 
 
 

662. Embryo formation is not known in :

 
 
 
 

663. Streptomyces falls under:

 
 
 
 

664. Which lichen is called Reindeer moss?

 
 
 
 

665. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

666. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

670. Fern prothallus produces:

 
 
 
 

671. 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:

 
 
 
 

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

 
 
 
 

673. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

676. In angiosperms double fertilization represents:

 
 
 
 

677. Psilotum is:

 
 
 
 

678. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

680. Mycoplasma was discovered by:

 
 
 
 

681. The term stele was given by:

 
 
 
 

682. An alga which is rich in proteins:

 
 
 
 

683. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

688. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

690. The spermatozoids of Cycas are :

 
 
 
 

691. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

693. Interferon is a:

 
 
 
 

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

 
 
 
 

695. The gametophyte of moss has distinct phases :

 
 
 
 

696. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

700. Siphonogamy is found in:

 
 
 
 

701. Leprosy is caused by:

 
 
 
 

702. Fern plants are:

 
 
 
 

703. Which is a tautonym?

 
 
 
 

704. 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?

 
 
 
 

705. In a diplontic life cycle:

 
 
 
 

706. The group algae possesses representatives belonging to kingdom:

 
 
 
 

707. Funaria can be differentiated from Cycas :

 
 
 
 

708. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

710. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

712. Which is a fungicide?

 
 
 
 

713. Yeast is a source of:

 
 
 
 

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

 
 
 
 

715. Cycas revoluta is widely grown as :

 
 
 
 

716. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. Which of the following is true for Selaginella?

 
 
 
 

720. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

723. Which is a redwood tree?

 
 
 
 

724. Gametophyte is the main plant body in :

 
 
 
 

725. First animal pathogenic virus was discovered by:

 
 
 
 

726. Mycoplasma is different from bacteria due to:

 
 
 
 

727. Which of the following are included in Tracheophyta?

 
 
 
 

728. Penicillin is obtained from:

 
 
 
 

729. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

732. Detailed study of bacteriophage was made by:

 
 
 
 

733. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

736. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

739. Photosynthetic protists belong to:

 
 
 
 

740. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

742. Botulinum toxin effects:

 
 
 
 

743. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

745. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

748. The roots of Cycas are :

 
 
 
 

749. Pinus gerardiana is :

 
 
 
 

750. Each chloroplast in Spirogyra bears :

 
 
 
 

751. 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:

 
 
 
 

752. Metulae are found in:

 
 
 
 

753. Cycas is different from mango in :

 
 
 
 

754. Which of the following lichens is harmful?

 
 
 
 

755. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

757. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

759. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

762. The antherozoids of Funaria are :

 
 
 
 

763. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

765. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

768. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

774. The chromosomal number in:

 
 
 
 

775. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

777. Which is the correct statement about Selaginella?

 
 
 
 

778. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

780. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

782. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

788. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

791. Placenta in fern is:

 
 
 
 

792. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

794. Viroids have:

 
 
 
 

795. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

797. 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:

 
 
 
 

798. Small epidermal swellings due to infection are called :

 
 
 
 

799. The development of Selaginella embryo is:

 
 
 
 

800. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

802. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

804. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. A gill of Agaricus:

 
 
 
 

808. In Funaria, calyptra is derived from :

 
 
 
 

809. 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?

 
 
 
 

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

 
 
 
 

811. True sexuality is not found in:

 
 
 
 

812. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

819. Pteridophyta are also called:

 
 
 
 

820. Nitrifying bacteria play an important role by converting:

 
 
 
 

821. Fruits are not found in:

 
 
 
 

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

 
 
 
 

823. Viruses are commonly transmitted in plants through:

 
 
 
 

824. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

827. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

830. The Rhizopus is:

 
 
 
 

831. Mycoplasma are:

 
 
 
 

832. Late blight of potato is caused by :

 
 
 
 

833. Oswald Tippo’s classification was based on :

 
 
 
 

834. Fruits are not found in :

 
 
 
 

835. Vascular cryptogam is the term used for :

 
 
 
 

836. Maximum diversity of life forms occurs in :

 
 
 
 

837. Cycas is:

 
 
 
 

838. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

840. Pythium debaryanum is the causative agent of:

 
 
 
 

841. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

844. The plants of Funaria grow :

 
 
 
 

845. Early blight of potato is caused by:

 
 
 
 

846. Chemosynthetic bacteria are:

 
 
 
 

847. Winged seeds are found in :

 
 
 
 

848. Polystelic condition is found in:

 
 
 
 

849. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

850. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

852. How is moss different from fern?

 
 
 
 

853. Meiosis in Ulothrix takes place:

 
 
 
 

854. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

861. Which one of the following is a monocot?

 
 
 
 

862. 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:

 
 
 
 

863. The tallest moss in the world is :

 
 
 
 

864. Broad spectrum antibiotic is, which: