Quiz_Random

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

 
 
 
 

2. Liverworts are included in :

 
 
 
 

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

 
 
 
 

4. Centric discoid form of diatom is:

 
 
 
 

5. The plants of Funaria grow :

 
 
 
 

6. Club moss is the common name of :

 
 
 
 

7. Green plants are classified as:

 
 
 
 

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

 
 
 
 

9. Ginkgo biloba is a:

 
 
 
 

10. Heterospory and ligulate leaves are a feature of:

 
 
 
 

11. Funaria is a Bryophyta because :

 
 
 
 

12. Meristele of fern is:

 
 
 
 

13. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

18. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Which part of Riccia bears nurse cells?

 
 
 
 

22. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

27. Bacteria growing on synthetic medium are called:

 
 
 
 

28. Which fixes atmospheric nitrogen?

 
 
 
 

29. Viruses are commonly transmitted in plants through:

 
 
 
 

30. Cleavage polyembryony is found in :

 
 
 
 

31. The chief characteristic of class Ascomycetes is:

 
 
 
 

32. The root nodules of leguminous plants contain:

 
 
 
 

33. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

35. Special feature of pollen grains of Pinus is :

 
 
 
 

36. Majority of lichens are :

 
 
 
 

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

 
 
 
 

38. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. To which class Riccia belongs :

 
 
 
 

42. Which is absent from the xylem of Cycas?

 
 
 
 

43. Ergot of rye is caused by:

 
 
 
 

44. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. Siphonogamy is found in:

 
 
 
 

48. The young leaves of Cycas have :

 
 
 
 

49. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. Enzymes are absent in:

 
 
 
 

54. The antibiotic is obtained from:

 
 
 
 

55. The fungi used as food are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. Yeast belongs to class:

 
 
 
 

60. The fungi are mostly:

 
 
 
 

61. The spur of Pinus roxburghii has :

 
 
 
 

62. Rhizopus and yeast are usually:

 
 
 
 

63. Cycas is similar to a mustard plant :

 
 
 
 

64. The sexual reproductive organs in Rhizopus are:

 
 
 
 

65. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Cryptogams include :

 
 
 
 

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

 
 
 
 

71. Red rot of sugarcane is caused by :

 
 
 
 

72. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

74. In moss, reduction division occurs in :

 
 
 
 

75. The term stele was given by:

 
 
 
 

76. Bacteria differ from viruses in being sensitive to:

 
 
 
 

77. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Facultative parasite is:

 
 
 
 

82. Detailed study of bacteriophage was made by:

 
 
 
 

83. Virus and bacteriophage are made-up of:

 
 
 
 

84. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

86. In moss, conducting tissue is made up of

 
 
 
 

87. Which among the following is a shrub?

 
 
 
 

88. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Polystelic condition is found in:

 
 
 
 

92. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

93. Botulinum toxin effects:

 
 
 
 

94. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

96. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. The sporangiophores in Rhizopus are:

 
 
 
 

100. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

103. The microsporophylls on the cone of Cycas are :

 
 
 
 

104. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. . Tapetum develops in:

 
 
 
 

108. Pythium debaryanum is the causative agent of:

 
 
 
 

109. Mycoplasma was discovered by:

 
 
 
 

110. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

112. Generic name of mango is:

 
 
 
 

113. The fungi are usually:

 
 
 
 

114. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

116. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

118. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

121. Linnaeus is credited with introducing:

 
 
 
 

122. Most primitive embryophytes are placed in:

 
 
 
 

123. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

126. The chief characteristic of bryophyta is that :

 
 
 
 

127. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

129. Mostly type of zygospore in Ulothrix is:

 
 
 
 

130. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

136. Who discovered cyanophages?

 
 
 
 

137. Which of the following is a monocot?

 
 
 
 

138. Mucilaginous canals in Cycas are found in :

 
 
 
 

139. Ethylene oxide is widely used to:

 
 
 
 

140. The male gametes of Pinus are :

 
 
 
 

141. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

143. Soil fertility is lost by the activities of:

 
 
 
 

144. The fungi that grow on wood are called:

 
 
 
 

145. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

148. The leaves of Funaria are :

 
 
 
 

149. Lichen show :

 
 
 
 

150. Pasteur is famous for his:

 
 
 
 

151. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

153. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

155. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

157. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

160. What is a vector?

 
 
 
 

161. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

167. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. In Gymnosperms endosperm is a:

 
 
 
 

174. Cyanophage is a virus that attacks:

 
 
 
 

175. The prothallus of fern represents the plant:

 
 
 
 

176. The zoospores of Ulothrix are :

 
 
 
 

177. Cycas is :

 
 
 
 

178. The spermatozoids of Cycas are :

 
 
 
 

179. Most primitive embryophytes are placed in :

 
 
 
 

180. The fern plant is:

 
 
 
 

181. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. Reproduction in Cycas takes place by :

 
 
 
 

185. LSD is:

 
 
 
 

186. The sporangium of fern contains nearly:

 
 
 
 

187. The development of Selaginella embryo is:

 
 
 
 

188. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

190. Which of the following are included in Tracheophyta?

 
 
 
 

191. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

193. Which is an edible fungus?

 
 
 
 

194. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

197. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

201. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. Zoogametes are not found in:

 
 
 
 

205. Bacteriophages have been used as:

 
 
 
 

206. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

208. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

212. The stele of Dryopteris is a:

 
 
 
 

213. Bacteria are found everywhere, except:

 
 
 
 

214. Nannandria are:

 
 
 
 

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

 
 
 
 

216. Which one of the following statement is wrong?

 
 
 
 

217. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

221. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

224. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

227. Which causes red tide?

 
 
 
 

228. Amoeba is a member of the phylum:

 
 
 
 

229. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

231. Pteridophytes are also known as :

 
 
 
 

232. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

234. The mode of nutrition of bacteria is usually:

 
 
 
 

235. In Cycas which structure is equivalent to stamen?

 
 
 
 

236. Which of the following is a parasitic algae?

 
 
 
 

237. Plasmids are:

 
 
 
 

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

 
 
 
 

239. Which is an exception to cell theory?

 
 
 
 

240. Lichens form the first community in

 
 
 
 

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

 
 
 
 

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

 
 
 
 

243. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. How a fern differs from a moss?

 
 
 
 

249. What is absent in Deuteromycetes?

 
 
 
 

250. Azolla and Salvinia both are:

 
 
 
 

251. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. Ovary is absent in :

 
 
 
 

256. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

258. 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:

 
 
 
 

259. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

266. Metulae are found in:

 
 
 
 

267. All algae have:

 
 
 
 

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

 
 
 
 

269. Fruits are not found in Cycas because:

 
 
 
 

270. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

274. Among the algae kelps are :

 
 
 
 

275. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

277. Lichens reproduce by :

 
 
 
 

278. Choose the correct statement about Spirogyra:

 
 
 
 

279. Which of the following shows heterotrichous habit?

 
 
 
 

280. Selaginella differs from Moss in having:

 
 
 
 

281. One of the distinctive feature of Spirogyra is :

 
 
 
 

282. Spores of which plants have chloroplast:

 
 
 
 

283. The DNA of E coli is:

 
 
 
 

284. Funaria is :

 
 
 
 

285. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

289. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

291. The chloroplast of Chlamydomonas are:

 
 
 
 

292. Fertility of the soil is increased by:

 
 
 
 

293. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

295. The flagella of Chlamydomonas are:

 
 
 
 

296. Little leaf disease of Brinjal is caused by:

 
 
 
 

297. Late blight of potato is caused by :

 
 
 
 

298. Quarantine regulations are concerned with:

 
 
 
 

299. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

302. Proembryo in Pinus is :

 
 
 
 

303. 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:

 
 
 
 

304. Ovules are not found enclosed in ovary of:

 
 
 
 

305. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

307. Most primitive group of vascular plants are:

 
 
 
 

308. Streptomycin is obtained from:

 
 
 
 

309. Virion refers to:

 
 
 
 

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

 
 
 
 

311. Pasteurized milk is:

 
 
 
 

312. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

316. Pteridophyta are also called:

 
 
 
 

317. Clostridium can:

 
 
 
 

318. Kuru, a human disease is caused by:

 
 
 
 

319. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

321. Cycas revoluta is widely grown as :

 
 
 
 

322. The development of sporangium in Selaginella is:

 
 
 
 

323. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

325. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

327. The gametophyte of moss has distinct phases :

 
 
 
 

328. Leaf spot of groundnut is caused by :

 
 
 
 

329. Funaria is :

 
 
 
 

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

 
 
 
 

331. Coenogamete is found in:

 
 
 
 

332. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

334. Black rust of wheat is caused by:

 
 
 
 

335. Which of the following is true for Selaginella?

 
 
 
 

336. The archegonia of Selaginella are differentiated by:

 
 
 
 

337. The central part of Funaria axis is :

 
 
 
 

338. Some biologists have used the term Mycetozoa for:

 
 
 
 

339. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

341. The lichens growing on rocks are called :

 
 
 
 

342. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

345. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

347. Fruits are not found in:

 
 
 
 

348. Which lichen is called Reindeer moss?

 
 
 
 

349. In moss, peristomial teeth are:

 
 
 
 

350. The source of litmus is :

 
 
 
 

351. Wine turns sour because of:

 
 
 
 

352. Mycoplasmas are not viruses in nature because:

 
 
 
 

353. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

354. Late blight of potato is caused by:

 
 
 
 

355. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

359.

 

360. How is moss different from fern?

 
 
 
 

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

 
 
 
 

362. The two conjugating gametangia of Rhizopus are:

 
 
 
 

363. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

364. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

366. Rhizoids of Riccia are :

 
 
 
 

367. Fern prothallus is:

 
 
 
 

368. Sporophyte of Funaria is :

 
 
 
 

369. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

372. Embryo formation is not known in :

 
 
 
 

373. The orders generally have the uniform endings:

 
 
 
 

374. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

376. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

378. Winged seeds are found in :

 
 
 
 

379. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

381. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

384. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

386. Enteric bacteria are those bacteria that live:

 
 
 
 

387. Indusium in Dryopteris is:

 
 
 
 

388. The most primitive vascular plants is:

 
 
 
 

389. In angiosperms double fertilization represents:

 
 
 
 

390. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

393. Black rust of wheat is caused by:

 
 
 
 

394. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

396. Lichens are ecologically important because :

 
 
 
 

397. Heterospory is the production of:

 
 
 
 

398. Fairy ring is the name given to:

 
 
 
 

399. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

401. The chromosomal number in:

 
 
 
 

402. Which is the correct statement about Selaginella?

 
 
 
 

403. Acellular slime mold is/are:

 
 
 
 

404. Botulism is a:

 
 
 
 

405. Which is a tautonym?

 
 
 
 

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

 
 
 
 

407. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

410. Broad spectrum antibiotic is, which:

 
 
 
 

411. Seeds are characteristically found in :

 
 
 
 

412. An Hfr bacterium is one that contains:

 
 
 
 

413. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

415. All protozoans possess:

 
 
 
 

416. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

419. All archaebacteria lack:

 
 
 
 

420. Lichens are the indicator of pollution :

 
 
 
 

421. E coli is a:

 
 
 
 

422. Small epidermal swellings due to infection are called :

 
 
 
 

423. Chief constituents of bordeaux mixture are :

 
 
 
 

424. Oswald Tippo’s classification was based on :

 
 
 
 

425. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

427. The largest alga is:

 
 
 
 

428. Standard size of a herbarium sheet is:

 
 
 
 

429. Which of the following lichens is harmful?

 
 
 
 

430. Ulothrix produces :

 
 
 
 

431. Sleeping sickness disease in man is caused by:

 
 
 
 

432. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

435. Gram stain is used to:

 
 
 
 

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

 
 
 
 

437. Isomorphic type alternation of generation is found in:

 
 
 
 

438. Embryophyta includes :

 
 
 
 

439. The disease symptom necrosis refers to :

 
 
 
 

440. Saccharomyces is used in:

 
 
 
 

441. Bentham and Hooker placed gymnosperms:

 
 
 
 

442. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

444. Which statement is wrong in regard to bacteria?

 
 
 
 

445. The mycelium of Rhizopus is:

 
 
 
 

446. The antherozoids of Funaria are :

 
 
 
 

447. Which class of Protozoa includes all parasitic forms?

 
 
 
 

448. Helotism word is used for the symbiosis between :

 
 
 
 

449. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

452. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

456. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

459. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

467. The megaspore of Selaginella on germination produces:

 
 
 
 

468. In Selaginella, the microsporangia are:

 
 
 
 

469. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

471. Which is not true for Escherichia coli?

 
 
 
 

472. Bivalved siliceous shell or frustule occur in:

 
 
 
 

473. Cocci types of bacteria are:

 
 
 
 

474. Red rot of sugarcane is caused by:

 
 
 
 

475. The archegonia in Selaginella develop on:

 
 
 
 

476. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

483. Ovules are not found enclosed in ovary in :

 
 
 
 

484. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

486. The Rhizopus gametes are formed in:

 
 
 
 

487. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

489. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

495. Nitrogen-fixing bacteria may be located:

 
 
 
 

496. The smallest unit of classification is:

 
 
 
 

497. Bacteria are considered to be plants because they:

 
 
 
 

498. Pollination in Cycas takes place by :

 
 
 
 

499. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

504. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

512. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. Black rust of wheat is caused by:

 
 
 
 

519. Vascular tissue is found in :

 
 
 
 

520. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

522. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

525. Each chloroplast in Spirogyra bears :

 
 
 
 

526. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

528. Cycas is:

 
 
 
 

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

 
 
 
 

530. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

532. Germ theory of disease was proposed by:

 
 
 
 

533. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

540. Mycoplasma is different from bacteria due to:

 
 
 
 

541. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

543. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

546. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

548. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

553. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

555. Which is a fungicide?

 
 
 
 

556. Pollination in Pinus is :

 
 
 
 

557. Ovules are not found enclosed in ovary in :

 
 
 
 

558. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

560. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

564. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. 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?

 
 
 
 

568. Oswald Tippo’s classification is:

 
 
 
 

569. Mycoplasma contains:

 
 
 
 

570. Fern phloem lacks:

 
 
 
 

571. Woody climbers are known as :

 
 
 
 

572. The middle sterile part of capsule is called:

 
 
 
 

573. The ascus of yeast contains:

 
 
 
 

574. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

577. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

579. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

583. Bacteria were first discovered by:

 
 
 
 

584. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

586. Anoxygenic photosynthesis occurs in:

 
 
 
 

587. The coralloid roots are :

 
 
 
 

588. In Pteris, the roots are:

 
 
 
 

589. Most of the algae are :

 
 
 
 

590. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

595. Most of the lichens are composed of :

 
 
 
 

596. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

598. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. Which is not found in bacteria?

 
 
 
 

602. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

604. Select the wrong statement:

 
 
 
 

605. The phloem of vascular system of Cycas is :

 
 
 
 

606. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

611. Photoautotrophic bacteria have:

 
 
 
 

612. What is streptomycin?

 
 
 
 

613. Sexual reproduction of lichen is due to :

 
 
 
 

614. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

616. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. 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:

 
 
 
 

620. Reproduction in Rhizopus is:

 
 
 
 

621. In tracheophyta:

 
 
 
 

622. Cellular slime mold is:

 
 
 
 

623. Where does meiosis occur in yeast?

 
 
 
 

624. Acetobacter is useful in:

 
 
 
 

625. Lichens show :

 
 
 
 

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

 
 
 
 

627. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

631. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

633. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

637. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

638.

639. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. Ectocarpus produces:

 
 
 
 

645. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

647. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

649. Diphtheria is caused by:

 
 
 
 

650. 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:

 
 
 
 

651. Some bacteria cannot be killed easily because of:

 
 
 
 

652. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. Mycoplasma are sensitive to:

 
 
 
 

659. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

661. Lichens reproduce by :

 
 
 
 

662. Redness of red sea is due to :

 
 
 
 

663. Who among the following discovered virus?

 
 
 
 

664. 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?

 
 
 
 

665. Transfusion tissue is present in the leaflet of:

 
 
 
 

666. Fruits are not found in :

 
 
 
 

667. Viruses have:

 
 
 
 

668. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

670. The Rhizopus is:

 
 
 
 

671. In Cycas the fertilization is:

 
 
 
 

672. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

676. Which of the following are absent in Mycoplasma?

 
 
 
 

677. In Funaria :

 
 
 
 

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

 
 
 
 

679. Lichens are pioneers of vegetation in a :

 
 
 
 

680. Seeds are characteristically found in:

 
 
 
 

681. Which of the following have algal zone?

 
 
 
 

682. Antibiotics cure the disease by:

 
 
 
 

683. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

689. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

691. Longest known virus is:

 
 
 
 

692. Bacteriophage consists of:

 
 
 
 

693. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

695. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

697. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

699. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

701. Sexual reproduction in Rhizopus is by:

 
 
 
 

702. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

706. Downy mildew disease is caused by :

 
 
 
 

707. Disease resistant plant varieties can be produced by :

 
 
 
 

708. Chemosynthetic bacteria are:

 
 
 
 

709. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

712. Which organisms are the oldest life forms?

 
 
 
 

713. In Cycas microsporangia are borne on:

 
 
 
 

714. In Gymnocarpeae the fruiting body is :

 
 
 
 

715. Genetic material of TMV is:

 
 
 
 

716. The order generally ends with:

 
 
 
 

717. The role of meiosis is for:

 
 
 
 

718. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

719. The group algae possesses representatives belonging to kingdom:

 
 
 
 

720. Male gametophyte of Selaginella is found:

 
 
 
 

721. Maximum diversity of life forms occurs in :

 
 
 
 

722. In Pteris, the archegonia are present:

 
 
 
 

723. Usually, bacteria reproduce by:

 
 
 
 

724. Methanogens belong to:

 
 
 
 

725. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

727. Placenta in fern is:

 
 
 
 

728. Saccharomyces ludwigii ascus produces:

 
 
 
 

729. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

732. Which of the following are included in Tracheophyta?

 
 
 
 

733. 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?

 
 
 
 

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

 
 
 
 

735. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. Azolla growing in paddy fields helps in:

 
 
 
 

739. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

741. Psilotum is:

 
 
 
 

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

 
 
 
 

743. The photosynthetic protists are:

 
 
 
 

744. Asexual reproductive body of Volvox is called:

 
 
 
 

745. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

747. The lambda phase is a:

 
 
 
 

748. Pollination drop is:

 
 
 
 

749. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

750. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Pythium debaryanum is the causative agent of:

 
 
 
 

758. Gametophyte is the main plant body in :

 
 
 
 

759. Diploxylic vascular bundles are found in:

 
 
 
 

760. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

762. In Funaria, calyptra is derived from :

 
 
 
 

763. The disease apple scab is caused by:

 
 
 
 

764. Green plants are classified as :

 
 
 
 

765. Tautonyms are illegitimate in:

 
 
 
 

766. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

774. The largest known bacterium is:

 
 
 
 

775. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

778. In moss, stomata are found:

 
 
 
 

779. Rhizopus belongs to:

 
 
 
 

780. The alga, Spirogyra are found in :

 
 
 
 

781. Pinus gerardiana is :

 
 
 
 

782. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

787. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

789. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

791. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

792. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

794. Which of the following statement is correct?

 
 
 
 

795. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

797. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

799. Embryophyta includes:

 
 
 
 

800. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

802. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

803. Protistan algae obtain their food as:

 
 
 
 

804.

805. The gametophyte of fern is as:

 
 
 
 

806. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

808.

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

 
 
 
 

810. 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:

 
 
 
 

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

 
 
 
 

812. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

814. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

817. Heterosporous pteridophytes always form:

 
 
 
 

818. In Cycas:

 
 
 
 

819. Lichens are indicators of :

 
 
 
 

820. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

823. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

825. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

827. Bacteria are placed under:

 
 
 
 

828. Mycoplasma are:

 
 
 
 

829. TMV was isolated in crystalline form by:

 
 
 
 

830. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

832. Select the wrong statement:

 
 
 
 

833. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

834. What are plasmids?

 
 
 
 

835. Cycas plant in appearance resembles :

 
 
 
 

836. Saccharomyces is well known for:

 
 
 
 

837. Most resistant spore in bacteria is:

 
 
 
 

838. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

842. Agar-agar is obtained from:

 
 
 
 

843. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

844. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

846. Spirogyra represents the :

 
 
 
 

847. Common phycobiont in a lichen is :

 
 
 
 

848. True sexuality is not found in:

 
 
 
 

849. Typhoid in man is caused by:

 
 
 
 

850. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

852. Pinus is:

 
 
 
 

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

 
 
 
 

854. Water-borne bacterial diseases are:

 
 
 
 

855. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

858. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

860. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

862. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

864. Who discovered streptomycin?