Quiz_Random

1. Pasteur is famous for his:

 
 
 
 

2. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Fern plants are:

 
 
 
 

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

 
 
 
 

7. Methanogens belong to:

 
 
 
 

8. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. The sporophyte of Riccia is represented by :

 
 
 
 

15. Proembryo in Pinus is :

 
 
 
 

16. The archegonia of Selaginella are differentiated by:

 
 
 
 

17. Number of capsomeres forming capsid of TMV is:

 
 
 
 

18. Who named prion?

 
 
 
 

19. Green plants are classified as :

 
 
 
 

20. Etiology includes the study of :

 
 
 
 

21. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Red rot of sugarcane is caused by :

 
 
 
 

25. What is special feature of fern archegonia?

 
 
 
 

26. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

28. Cycas is similar to a mustard plant :

 
 
 
 

29. Desired type of Cycas can be grown by:

 
 
 
 

30. 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?

 
 
 
 

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

 
 
 
 

32. Spirogyra differs from moss protonema in having :

 
 
 
 

33. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. The smallest unit of classification is:

 
 
 
 

39. What is a vector?

 
 
 
 

40. Cyathia is characterized by:

 
 
 
 

41. Vascular tissue is found in :

 
 
 
 

42. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

44. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

46. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

48. The fungi are mostly:

 
 
 
 

49. Ovary is absent in:

 
 
 
 

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

 
 
 
 

51. Roots are absent in :

 
 
 
 

52. Germ theory of disease was proposed by:

 
 
 
 

53. Male gametes in Dryopteris are:

 
 
 
 

54. Mostly type of zygospore in Ulothrix is:

 
 
 
 

55. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

60. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

62. Azolla growing in paddy fields helps in:

 
 
 
 

63. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

64. Bacteria are placed under:

 
 
 
 

65. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

67. Spermatophyta are characterized by producing:

 
 
 
 

68. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

70. The sporangium of fern contains nearly:

 
 
 
 

71. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

72. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

74. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

76. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

78. In a bacteriophage, DNA is present in:

 
 
 
 

79. Rice, pea, potato are :

 
 
 
 

80. Generic name of mango is:

 
 
 
 

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

 
 
 
 

82. Who among the following discovered virus?

 
 
 
 

83. Most primitive group of vascular plants are:

 
 
 
 

84. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

90. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

92. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. Bacteria which are spherical are called:

 
 
 
 

100. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

102. Citrus canker is caused by:

 
 
 
 

103. The spur of Pinus roxburghii has :

 
 
 
 

104. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

106. Aflatoxin is produced by:

 
 
 
 

107. Gram stain is used to:

 
 
 
 

108. Enteric bacteria are those bacteria that live:

 
 
 
 

109. Sexual reproduction in Rhizopus is by:

 
 
 
 

110. Which of the following is a parasitic algae?

 
 
 
 

111. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

123. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

127. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

129. Pinus gerardiana is :

 
 
 
 

130. Aflatoxin is produced as a product in :

 
 
 
 

131. Bacteriophages have been used as:

 
 
 
 

132. Most primitive kind of flower is represented by:

 
 
 
 

133. Sleeping sickness disease in man is caused by:

 
 
 
 

134. Milk is converted to curd by:

 
 
 
 

135. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

137. Citrus canker is caused by :

 
 
 
 

138. Transfusion tissue is present in the leaflet of:

 
 
 
 

139. The fern plant is:

 
 
 
 

140. Yeast is a source of:

 
 
 
 

141. Fruits are not found in Cycas because:

 
 
 
 

142. Psilotum is:

 
 
 
 

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

 
 
 
 

144. Which organisms are the oldest life forms?

 
 
 
 

145. Nitrifying bacteria play an important role by converting:

 
 
 
 

146. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

148. Vascular cryptogam is the term used for :

 
 
 
 

149. In Pteris, the roots are:

 
 
 
 

150. Pythium debaryanum is the causative agent of:

 
 
 
 

151. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

154. Sexual reproduction of lichen is due to :

 
 
 
 

155. The Rhizopus is:

 
 
 
 

156. The disease apple scab is caused by:

 
 
 
 

157. Plasmids are:

 
 
 
 

158. Bryophyta have a special character from other plants:

 
 
 
 

159. The largest known bacterium is:

 
 
 
 

160. Disease resistant plant varieties can be produced by :

 
 
 
 

161. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

162. To which country Antony van Leeuwenhoek belong?

 
 
 
 

163. Viruses are considered to be:

 
 
 
 

164. Which of the following have algal zone?

 
 
 
 

165. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

171. Bacteria were first discovered by:

 
 
 
 

172. Which is a redwood tree?

 
 
 
 

173. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

175. The fungi that grow on wood are called:

 
 
 
 

176. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

179. Which part of Riccia bears nurse cells?

 
 
 
 

180. Who discovered cyanophages?

 
 
 
 

181. Pinus microsporophyll bears:

 
 
 
 

182. The tallest moss in the world is :

 
 
 
 

183. Cycas is :

 
 
 
 

184. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

186. Endemic plants are characterised by their:

 
 
 
 

187. Male gametophyte of Selaginella is found:

 
 
 
 

188. The sori in Dryopteris are found on:

 
 
 
 

189. Streptomycin is obtained from:

 
 
 
 

190. Redness of red sea is due to :

 
 
 
 

191. Broad spectrum antibiotic is, which:

 
 
 
 

192. The antherozoids of Funaria are :

 
 
 
 

193. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

195. Among the algae kelps are :

 
 
 
 

196. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

198. Bryophyta have been placed in cryptogams because:

 
 
 
 

199. Most common type of conjugation in Spirogyra is :

 
 
 
 

200. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

202. The largest alga is:

 
 
 
 

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

 
 
 
 

204. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

209. Cryptogams include :

 
 
 
 

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

 
 
 
 

211. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

214. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

216. Vegetative reproduction in Cycas is by means of :

 
 
 
 

217. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

219. Yeast belongs to class:

 
 
 
 

220. Synzoospore is produced in:

 
 
 
 

221. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

223. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

226. The plants of Funaria grow :

 
 
 
 

227. All algae have:

 
 
 
 

228. Which of the following statement is correct?

 
 
 
 

229. Funaria is :

 
 
 
 

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

 
 
 
 

231. What are plasmids?

 
 
 
 

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

 
 
 
 

233. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

239. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

241. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

243. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

261. Which is the nuclear material in bacteria?

 
 
 
 

262. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

264. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

266. Facultative parasite is:

 
 
 
 

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

 
 
 
 

268. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

270. Which is not true for Escherichia coli?

 
 
 
 

271. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

273. Which have the largest antherozoid?

 
 
 
 

274. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

276. Pasteurization of milk involves heating for:

 
 
 
 

277. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

279. Coenogamete is found in:

 
 
 
 

280. Facultative saprophyte is:

 
 
 
 

281. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. The fungi are usually:

 
 
 
 

285. Black rust of wheat is caused by:

 
 
 
 

286. Chemosynthetic bacteria are:

 
 
 
 

287. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

289. Ulothrix produces :

 
 
 
 

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

 
 
 
 

291. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

293. What is streptomycin?

 
 
 
 

294. 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:

 
 
 
 

295. The chloroplast of Chlamydomonas are:

 
 
 
 

296. Which of the following lichens is harmful?

 
 
 
 

297. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

298. Oswald Tippo’s classification is:

 
 
 
 

299. The photosynthetic protists are:

 
 
 
 

300. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

302. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

304. Chief constituents of bordeaux mixture are :

 
 
 
 

305. In Funaria :

 
 
 
 

306. Reserve food in Euglena is:

 
 
 
 

307. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

309. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

311. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

316. Lichen show :

 
 
 
 

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

 
 
 
 

318. Multicellular and jacketed sex organs are found in :

 
 
 
 

319. Lichens are the indicator of pollution :

 
 
 
 

320. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

322. The nucleus of bacteria is:

 
 
 
 

323. One of the distinctive feature of Spirogyra is :

 
 
 
 

324. Clostridium can:

 
 
 
 

325. In moss, sporogenous tissue arises from:

 
 
 
 

326. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

330. Spirogyra represents the :

 
 
 
 

331. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

334. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

336. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

338. Which is a tautonym?

 
 
 
 

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

 
 
 
 

340. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

342. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

345. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

347. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

349. 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?

 
 
 
 

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

 
 
 
 

351. Which of the following statements is not correct?

 
 
 
 

352. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

354. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

355. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

357. Maximum diversity of life forms occurs in :

 
 
 
 

358. In Cycas the fertilization is:

 
 
 
 

359. Embryophyta includes :

 
 
 
 

360. Fern prothallus is:

 
 
 
 

361. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

366. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

369. The young leaves of Cycas have :

 
 
 
 

370. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

374. 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:

 
 
 
 

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

 
 
 
 

376. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

378. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

380. Select the wrong statement:

 
 
 
 

381. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

383. Wine turns sour because of:

 
 
 
 

384. Meiosis in Ulothrix takes place:

 
 
 
 

385. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

389. Climbers are found in genus:

 
 
 
 

390. Red rot of sugarcane is caused by :

 
 
 
 

391. Amoeba is a member of the phylum:

 
 
 
 

392.

 

393. Genetic material of TMV is:

 
 
 
 

394. Mycoplasma is different from bacteria due to:

 
 
 
 

395. Who discovered streptomycin?

 
 
 
 

396. Cap cells are found in the filament of:

 
 
 
 

397. In binomial system most of the words are:

 
 
 
 

398. Which of the following have a prokaryotic cell?

 
 
 
 

399. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

401. The leaves of Funaria are :

 
 
 
 

402. Pollination in Cycas takes place by :

 
 
 
 

403. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

405. Which of the following are included in Tracheophyta?

 
 
 
 

406. Fruits are not found in:

 
 
 
 

407.

408. Which is the correct statement about Selaginella?

 
 
 
 

409. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

412. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

416. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

418. Black rust of wheat is caused by:

 
 
 
 

419. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

421. Vascular cryptogams is the term used for:

 
 
 
 

422. Cellular slime mold is:

 
 
 
 

423. The phloem of vascular system of Cycas is :

 
 
 
 

424. 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:

 
 
 
 

425. Viruses are commonly transmitted in plants through:

 
 
 
 

426. Protistan algae obtain their food as:

 
 
 
 

427. Ovary is absent in :

 
 
 
 

428. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

430. In a diplontic life cycle:

 
 
 
 

431. Isomorphic type alternation of generation is found in:

 
 
 
 

432. Germination of the seed of Pinus is :

 
 
 
 

433. Smallpox is caused by:

 
 
 
 

434. An alga which is rich in proteins:

 
 
 
 

435. Lichens are indicators of :

 
 
 
 

436. The smallest bacterium is:

 
 
 
 

437. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

440. How is moss different from fern?

 
 
 
 

441. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

443. Which of the following are absent in Mycoplasma?

 
 
 
 

444. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

447. All protozoans possess:

 
 
 
 

448. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

450. Which statement is wrong in regard to bacteria?

 
 
 
 

451. Yeast grows more rapidly in:

 
 
 
 

452. Leaf spot of groundnut is caused by :

 
 
 
 

453. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

456. 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:

 
 
 
 

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

 
 
 
 

458. Pteridophytes are also known as :

 
 
 
 

459. Enzymes are absent in:

 
 
 
 

460. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

462. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

464. Ovules are not found enclosed in ovary in :

 
 
 
 

465. Water-net is the name of:

 
 
 
 

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

 
 
 
 

467. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

468. Pasteurized milk is:

 
 
 
 

469. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

471. The group algae possesses representatives belonging to kingdom:

 
 
 
 

472. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

474. Which is a fungicide?

 
 
 
 

475. Black rust of wheat is caused by:

 
 
 
 

476. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

478. The two conjugating gametangia of Rhizopus are:

 
 
 
 

479. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. The prothallus of fern is:

 
 
 
 

483. Funaria is :

 
 
 
 

484. The tree fern is:

 
 
 
 

485. Smut of maize is caused by :

 
 
 
 

486. White rust of crucifers is caused by:

 
 
 
 

487. Protists which are diploid reproduce sexually by:

 
 
 
 

488. Special feature of pollen grains of Pinus is :

 
 
 
 

489. The similarity between cyanobacteria and bacteria:

 
 
 
 

490. Centric discoid form of diatom is:

 
 
 
 

491. Viroids have:

 
 
 
 

492. Gymnosperms could also be called as:

 
 
 
 

493. Mycoplasma contains:

 
 
 
 

494. Mixed cropping helps :

 
 
 
 

495. The flagella of Chlamydomonas are:

 
 
 
 

496. Agar-agar is obtained from:

 
 
 
 

497. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

499. Lichens show :

 
 
 
 

500. What is absent in Deuteromycetes?

 
 
 
 

501. Fern prothallus produces:

 
 
 
 

502. In Selaginella, the microsporangia are:

 
 
 
 

503. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

509. The leaves of Funaria are :

 
 
 
 

510. Which of the following shows heterotrichous habit?

 
 
 
 

511. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514. Antibiotic has been extracted from :

 
 
 
 

515. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

522. To which class Riccia belongs :

 
 
 
 

523. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

529. Which among the following is a shrub?

 
 
 
 

530. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

534. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

536. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

538. Lichens form the first community in

 
 
 
 

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

 
 
 
 

540. True sexuality is not found in:

 
 
 
 

541. Bacteria differ from viruses in being sensitive to:

 
 
 
 

542. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

544. Photosynthetic protists belong to:

 
 
 
 

545. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

547. What is the role of nitrifying bacteria?

 
 
 
 

548. Interferon is a:

 
 
 
 

549. Some bacteria cannot be killed easily because of:

 
 
 
 

550. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

553. In Pteris, the archegonia are present:

 
 
 
 

554. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

556. Cycas is:

 
 
 
 

557. The genetic material of poxvirus is:

 
 
 
 

558. Cycas is different from mango in :

 
 
 
 

559. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

561. Bentham and Hooker placed gymnosperms:

 
 
 
 

562. Detailed study of bacteriophage was made by:

 
 
 
 

563. Simple polyembryony is found in :

 
 
 
 

564. In Funaria, calyptra is derived from :

 
 
 
 

565. Seeds are characteristically found in :

 
 
 
 

566. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

568. Which one of the following statement is wrong?

 
 
 
 

569. Pseudomycelium is found in:

 
 
 
 

570. Azolla and Salvinia both are:

 
 
 
 

571. Which of the following applies to Selaginella?

 
 
 
 

572. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

574. Placenta in fern is:

 
 
 
 

575. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. Select the wrong statement:

 
 
 
 

579. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

581. Pteridophyta are also called:

 
 
 
 

582. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

585. Mycoplasma was discovered by:

 
 
 
 

586. The gametophyte of moss has distinct phases :

 
 
 
 

587. Which of the following is a monocot?

 
 
 
 

588. The lambda phase is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

593. Most primitive embryophytes are placed in:

 
 
 
 

594. Which fixes atmospheric nitrogen?

 
 
 
 

595. Protozoans are considered animals because these are:

 
 
 
 

596. 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?

 
 
 
 

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

 
 
 
 

598. Tautonyms are illegitimate in:

 
 
 
 

599. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

601. Botulinum toxin effects:

 
 
 
 

602. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

606. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

608. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

610. Which group of algae have an incipient nucleus?

 
 
 
 

611. Typhoid in man is caused by:

 
 
 
 

612. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

615. Lichens are ecologically important because :

 
 
 
 

616. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

618. In tracheophyta:

 
 
 
 

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

 
 
 
 

620. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

625. 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:

 
 
 
 

626. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

628. Pinus is:

 
 
 
 

629. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

631. The spermatozoids of Cycas are :

 
 
 
 

632. The root nodules of leguminous plants contain:

 
 
 
 

633. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

638. An Hfr bacterium is one that contains:

 
 
 
 

639. Polystelic condition is found in:

 
 
 
 

640. Anoxygenic photosynthesis occurs in:

 
 
 
 

641. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. Metulae are found in:

 
 
 
 

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

 
 
 
 

646. Saccharomyces is used in:

 
 
 
 

647. Heterospory and ligulate leaves are a feature of:

 
 
 
 

648. Ectocarpus produces:

 
 
 
 

649. The leafy fern plant represents the:

 
 
 
 

650. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

652. Sporophyte of Funaria is :

 
 
 
 

653. Photosynthetic bacteria have:

 
 
 
 

654. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

655. Which is absent from the xylem of Cycas?

 
 
 
 

656. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

659. Heterocysts are found in :

 
 
 
 

660. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

664. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

665. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

668. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

674. The sporangiophores in Rhizopus are:

 
 
 
 

675. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

678. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

680. Majority of lichens are :

 
 
 
 

681. The disease symptom necrosis refers to :

 
 
 
 

682. Most of the algae are :

 
 
 
 

683. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

685. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

687. LSD is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

691. Cocci types of bacteria are:

 
 
 
 

692. The ascus of yeast contains:

 
 
 
 

693. The sexual reproductive organs in Rhizopus are:

 
 
 
 

694. E coli is a:

 
 
 
 

695. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

697. The most primitive vascular plants is:

 
 
 
 

698. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. Cycas revoluta is widely grown as :

 
 
 
 

706. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

708. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

712. Most primitive embryophytes are placed in :

 
 
 
 

713. Pythium debaryanum is the causative agent of:

 
 
 
 

714. TMV was isolated in crystalline form by:

 
 
 
 

715. Botulism is a:

 
 
 
 

716. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. 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:

 
 
 
 

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

 
 
 
 

721. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. The vascular bundles of Cycas stem are :

 
 
 
 

726.

727. Cleavage polyembryony is found in :

 
 
 
 

728. The megasporangium of Selaginella is:

 
 
 
 

729. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

731. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

734. The chromosomal number in:

 
 
 
 

735. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

737. Longest known virus is:

 
 
 
 

738. The fungi used as food are:

 
 
 
 

739. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

741. Bacteria are considered to be plants because they:

 
 
 
 

742. Embryophyta includes:

 
 
 
 

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

 
 
 
 

744. Infective part of virus was discovered by:

 
 
 
 

745. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. Funaria can be differentiated from Cycas :

 
 
 
 

753. Fruits are not found in :

 
 
 
 

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

 
 
 
 

755. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

758. The lichens growing on rocks are called :

 
 
 
 

759. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

766. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

768. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

773. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

775. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

777. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

779. Reproduction in Cycas takes place by :

 
 
 
 

780. Winged pollen grains are found in :

 
 
 
 

781. Which of the following is true for viruses?

 
 
 
 

782. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

785. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

787. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

789. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

791. Fruiting body of lichens is :

 
 
 
 

792. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

796. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

800. The source of litmus is :

 
 
 
 

801. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

803. How a fern differs from a moss?

 
 
 
 

804. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

806. Which one of the following is a monocot?

 
 
 
 

807. The coralloid roots are :

 
 
 
 

808. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

810. NBG of Lucknow is now named as:

 
 
 
 

811. Gametophyte is the main plant body in :

 
 
 
 

812. Iodine is obtained from:

 
 
 
 

813. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

820. Bacteriophage consists of:

 
 
 
 

821. Mycoplasma are sensitive to:

 
 
 
 

822. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

825. Selaginella differs from Moss in having:

 
 
 
 

826. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

828. Nannandria are:

 
 
 
 

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

 
 
 
 

830. First animal pathogenic virus was discovered by:

 
 
 
 

831. Usually, bacteria reproduce by:

 
 
 
 

832. Helotism word is used for the symbiosis between :

 
 
 
 

833. The order generally ends with:

 
 
 
 

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

 
 
 
 

835. In moss, calyptra is formed from:

 
 
 
 

836. The mycelium of Rhizopus is:

 
 
 
 

837. Cyanophage is a virus that attacks:

 
 
 
 

838. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

840. The zygospore in Rhizopus on germination forms:

 
 
 
 

841. 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?

 
 
 
 

842. The sporophyte of Riccia is :

 
 
 
 

843. In Herpes virus DNA is:

 
 
 
 

844. Virion refers to:

 
 
 
 

845. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

847. Iodine is obtained from :

 
 
 
 

848. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

850. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

852. The term stele was given by:

 
 
 
 

853. Winged seeds are found in :

 
 
 
 

854. The male gametes of Pinus are :

 
 
 
 

855. Pollination drop is:

 
 
 
 

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

 
 
 
 

857.

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

 
 
 
 

859. Which is a gametophytic tissue?

 
 
 
 

860. Meristele of fern is:

 
 
 
 

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

 
 
 
 

862. Which lichen is called Reindeer moss?

 
 
 
 

863. The zoospores of Ulothrix are :

 
 
 
 

864. The microsporophylls on the cone of Cycas are :