Quiz_Random

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

 
 
 
 

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

 
 
 
 

3. Rhizopus belongs to:

 
 
 
 

4. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

6. Fruits are not found in Cycas because:

 
 
 
 

7. Water bloom is generally caused by :

 
 
 
 

8. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. 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:

 
 
 
 

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

 
 
 
 

13. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

19. Sporophyte of Funaria is :

 
 
 
 

20. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

25. Leprosy is caused by:

 
 
 
 

26. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

28. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Heterospory is the production of:

 
 
 
 

32. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

34. The tallest moss in the world is :

 
 
 
 

35. Lichen show :

 
 
 
 

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

 
 
 
 

37. The term stele was given by:

 
 
 
 

38. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

40. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

46. Mixed cropping helps :

 
 
 
 

47. The most primitive vascular plants is:

 
 
 
 

48. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. To which country Antony van Leeuwenhoek belong?

 
 
 
 

52. The disease apple scab is caused by:

 
 
 
 

53. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

54. 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?

 
 
 
 

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

 
 
 
 

56. Ovary is absent in:

 
 
 
 

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

 
 
 
 

58. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

60. The vascular bundles of Cycas stem are :

 
 
 
 

61. Which among the following is a shrub?

 
 
 
 

62. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. Siphonogamy is found in:

 
 
 
 

67. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

69. Cycas is similar to a mustard plant :

 
 
 
 

70. Iodine is obtained from:

 
 
 
 

71. Vascular cryptogams is the term used for:

 
 
 
 

72. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

73. Ergot is obtained from :

 
 
 
 

74. Zoogametes are not found in:

 
 
 
 

75. Which of the following have algal zone?

 
 
 
 

76. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. Most of the lichens are composed of :

 
 
 
 

81. Botulism is a:

 
 
 
 

82. The teeth of peristome of Funaria are :

 
 
 
 

83. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. An alga which is rich in proteins:

 
 
 
 

87. The photosynthetic protists are:

 
 
 
 

88. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

90. The lambda phase is a:

 
 
 
 

91. Where does meiosis occur in yeast?

 
 
 
 

92. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

100. The middle sterile part of capsule is called:

 
 
 
 

101. The chromosomal number in:

 
 
 
 

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

 
 
 
 

103. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. Black rust of wheat is caused by:

 
 
 
 

108. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

111. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

113. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

115. In Pteris, the archegonia are present:

 
 
 
 

116. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

118. Plasmids are:

 
 
 
 

119. Select the wrong statement:

 
 
 
 

120. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

123. Bacteria were first discovered by:

 
 
 
 

124. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

126. Reproduction in Cycas takes place by :

 
 
 
 

127. Spermatophyta are characterized by producing:

 
 
 
 

128. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

140. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

143. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

147. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

149. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

152. Select the wrong statement:

 
 
 
 

153. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

155. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

157. Some biologists have used the term Mycetozoa for:

 
 
 
 

158. Embryophyta includes :

 
 
 
 

159. Bacteriophage consists of:

 
 
 
 

160. All protozoans possess:

 
 
 
 

161. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

167. Number of capsomeres forming capsid of TMV is:

 
 
 
 

168. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

170. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

172. Spermatophyta are characterized by producing:

 
 
 
 

173. Nitrogen-fixing bacteria may be located:

 
 
 
 

174. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

176. Water-borne bacterial diseases are:

 
 
 
 

177. Citrus canker is caused by :

 
 
 
 

178. Green plants are classified as :

 
 
 
 

179. Which part of Riccia bears nurse cells?

 
 
 
 

180. Green plants are classified as:

 
 
 
 

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

 
 
 
 

182. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

185. Water-net is the name of:

 
 
 
 

186. Fruits are not found in :

 
 
 
 

187. Genetic material of TMV is:

 
 
 
 

188. 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?

 
 
 
 

189. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

190. Spirogyra differs from moss protonema in having :

 
 
 
 

191. How is moss different from fern?

 
 
 
 

192. Virus and bacteriophage are made-up of:

 
 
 
 

193. Placenta in fern is:

 
 
 
 

194. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

196. Mycoplasma is different from bacteria due to:

 
 
 
 

197. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

205. Heterospory and ligulate leaves are a feature of:

 
 
 
 

206. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

209. Mycoplasmas are not viruses in nature because:

 
 
 
 

210. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

215. Which of the following lichens is harmful?

 
 
 
 

216. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

218. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

220. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

226. Club moss is the common name of :

 
 
 
 

227. 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:

 
 
 
 

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

 
 
 
 

229. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

231. Proembryo in Pinus is :

 
 
 
 

232. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

233. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

237. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

239. Each chloroplast in Spirogyra bears :

 
 
 
 

240. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

242. Which condition is found in Cycas?

 
 
 
 

243. The zoospores of Ulothrix are :

 
 
 
 

244. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

252. Which lichen is called Reindeer moss?

 
 
 
 

253.

254. Yeast is a source of:

 
 
 
 

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

 
 
 
 

256. TMV was isolated in crystalline form by:

 
 
 
 

257. Photosynthetic bacteria have:

 
 
 
 

258. All archaebacteria lack:

 
 
 
 

259. Black rust of wheat is caused by:

 
 
 
 

260. Embryo formation is not known in :

 
 
 
 

261. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

264. Fairy ring is the name given to:

 
 
 
 

265. Bivalved siliceous shell or frustule occur in:

 
 
 
 

266. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

268. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

270. Ovary is absent in :

 
 
 
 

271. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

273. Which is not found in bacteria?

 
 
 
 

274. What are plasmids?

 
 
 
 

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

 
 
 
 

276. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

279. Oswald Tippo’s classification is:

 
 
 
 

280. In a bacteriophage, DNA is present in:

 
 
 
 

281. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. Pseudomycelium is found in:

 
 
 
 

285. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

287. The male gametes of Pinus are :

 
 
 
 

288. Triple antigen injection or vaccine are for:

 
 
 
 

289. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

292. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

297. Ectocarpus produces:

 
 
 
 

298. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

301. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

303. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

306. Roots are absent in :

 
 
 
 

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

 
 
 
 

308. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

311. Embryophyta includes:

 
 
 
 

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

 
 
 
 

313. Tautonyms are illegitimate in:

 
 
 
 

314. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

317. Gram stain is used to:

 
 
 
 

318. Lichens show :

 
 
 
 

319. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

321. The Rhizopus is:

 
 
 
 

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

 
 
 
 

323. The antherozoids of Funaria are :

 
 
 
 

324. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

326. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. Streptomyces falls under:

 
 
 
 

333. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

335. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

337. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

340. The flagella of Chlamydomonas are:

 
 
 
 

341. 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:

 
 
 
 

342. E coli is a:

 
 
 
 

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

 
 
 
 

344. The tree fern is:

 
 
 
 

345. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. The sori in Dryopteris are found on:

 
 
 
 

349. To which class Riccia belongs :

 
 
 
 

350. Acetobacter is useful in:

 
 
 
 

351. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

353. Who named prion?

 
 
 
 

354. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

356. Ethylene oxide is widely used to:

 
 
 
 

357. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

359. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

361. Penicillin is obtained from:

 
 
 
 

362. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

364. Which of the following statements is not correct?

 
 
 
 

365. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

367. Cocci types of bacteria are:

 
 
 
 

368. Lichens are ecologically important because :

 
 
 
 

369. Germination of the seed of Pinus is :

 
 
 
 

370. The sexual reproductive organs in Rhizopus are:

 
 
 
 

371. In Funaria, calyptra is derived from :

 
 
 
 

372. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

375. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

377. Maximum diversity of life forms occurs in :

 
 
 
 

378. The ferns are usually found:

 
 
 
 

379. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

380. Asexual reproductive body of Volvox is called:

 
 
 
 

381. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

384. Chemosynthetic bacteria are:

 
 
 
 

385. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

386. 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?

 
 
 
 

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

 
 
 
 

388. Viroids have:

 
 
 
 

389. 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:

 
 
 
 

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

 
 
 
 

391. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

394. The seedless plants which possess vascular tissues are:

 
 
 
 

395. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

397. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

399. Liverworts are included in :

 
 
 
 

400. Helotism word is used for the symbiosis between :

 
 
 
 

401. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

403. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

405. Heterotrichous habit means :

 
 
 
 

406. Photosynthetic protists belong to:

 
 
 
 

407. The development of Selaginella embryo is:

 
 
 
 

408. Rhizoids of Riccia are :

 
 
 
 

409. Which of the following is sago palm?

 
 
 
 

410. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

412. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

414. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

416. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. Mycoplasma contains:

 
 
 
 

421. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

425. Male gametes in Dryopteris are:

 
 
 
 

426. Which is the correct statement about Selaginella?

 
 
 
 

427. Etiology includes the study of :

 
 
 
 

428. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

430. Mycoplasma are sensitive to:

 
 
 
 

431. Spirogyra represents the :

 
 
 
 

432. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

434. In Pteris, the roots are:

 
 
 
 

435. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

438. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

440. Leaf spot of groundnut is caused by :

 
 
 
 

441. Clostridium can:

 
 
 
 

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

 
 
 
 

443. In moss, sporophyte is formed on:

 
 
 
 

444. In a diplontic life cycle:

 
 
 
 

445. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

447. Nitrifying bacteria play an important role by converting:

 
 
 
 

448. The orders generally have the uniform endings:

 
 
 
 

449. 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:

 
 
 
 

450. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

453. Which causes red tide?

 
 
 
 

454. Virion refers to:

 
 
 
 

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

 
 
 
 

456. Protists which are diploid reproduce sexually by:

 
 
 
 

457. An Hfr bacterium is one that contains:

 
 
 
 

458. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

459. What is streptomycin?

 
 
 
 

460. Kuru, a human disease is caused by:

 
 
 
 

461. Fern prothallus is:

 
 
 
 

462. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

467. Diphtheria is caused by:

 
 
 
 

468. Mycoplasma are:

 
 
 
 

469. LSD is:

 
 
 
 

470. The coralloid roots are :

 
 
 
 

471. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

473. Which of the following is a heterosporous pteridophyte?

 
 
 
 

474. Methanogens belong to:

 
 
 
 

475. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

481. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

483. Sporophyte of fern is:

 
 
 
 

484. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

487. Bacteria are placed under:

 
 
 
 

488. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

490. . Tapetum develops in:

 
 
 
 

491. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

494. Azolla growing in paddy fields helps in:

 
 
 
 

495. Bacteriophages have been used as:

 
 
 
 

496. The DNA of E coli is:

 
 
 
 

497. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

501. The order generally ends with:

 
 
 
 

502. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Ovules are not found enclosed in ovary in :

 
 
 
 

507. Psilotum is:

 
 
 
 

508. The chief characteristic of bryophyta is that :

 
 
 
 

509. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

511. Select the correct statement: (NEET 2016)

 
 
 
 

512. Cycas is :

 
 
 
 

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

 
 
 
 

514. Most primitive embryophytes are placed in :

 
 
 
 

515. Generic name of mango is:

 
 
 
 

516. The largest alga is:

 
 
 
 

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

 
 
 
 

518. The microsporophylls on the cone of Cycas are :

 
 
 
 

519. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

525. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

527. The megaspore of Selaginella on germination produces:

 
 
 
 

528. Lichens reproduce by :

 
 
 
 

529. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

531. Soil fertility is lost by the activities of:

 
 
 
 

532. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

534. Cap cells are found in the filament of:

 
 
 
 

535. Which is an exception to cell theory?

 
 
 
 

536. Funaria is :

 
 
 
 

537. Gymnosperms could also be called as:

 
 
 
 

538. Total parasites belong to:

 
 
 
 

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

 
 
 
 

540. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. Which of the following is true for viruses?

 
 
 
 

544. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

546. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Which of the following are absent in Mycoplasma?

 
 
 
 

550. Broad spectrum antibiotic is, which:

 
 
 
 

551.

 

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

 
 
 
 

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

 
 
 
 

554. Endemic plants are characterised by their:

 
 
 
 

555. Which of the following is a monocot?

 
 
 
 

556. Iodine is obtained from :

 
 
 
 

557. Who discovered heterothallism in fungi?

 
 
 
 

558. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

560. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

561. Botulinum toxin effects:

 
 
 
 

562. Redness of red sea is due to :

 
 
 
 

563. Cycas is:

 
 
 
 

564. In Cycas:

 
 
 
 

565. 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:

 
 
 
 

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

 
 
 
 

567. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

570. Which of the following are included in Tracheophyta?

 
 
 
 

571. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

573. What is mycorrhiza?

 
 
 
 

574. In moss, peristomial teeth are:

 
 
 
 

575. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

577. True sexuality is not found in:

 
 
 
 

578. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

581. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

583. One of the distinctive feature of Spirogyra is :

 
 
 
 

584. The megasporangium of Selaginella is:

 
 
 
 

585. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

587. Which have the largest antherozoid?

 
 
 
 

588. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

590. The smallest bacterium is:

 
 
 
 

591. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. Coenogamete is found in:

 
 
 
 

595. Funaria is :

 
 
 
 

596. Which of the following statement is correct?

 
 
 
 

597. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

599. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. In moss, calyptra is formed from:

 
 
 
 

603. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

606. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

608. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

610. Which one of the following is a monocot?

 
 
 
 

611. What is the role of nitrifying bacteria?

 
 
 
 

612. Which is an edible fungus?

 
 
 
 

613. Antibiotics cure the disease by:

 
 
 
 

614. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

616. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. Funaria is a Bryophyta because :

 
 
 
 

620. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

622. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

625. The smallest unit of classification is:

 
 
 
 

626. The Rhizopus gametes are formed in:

 
 
 
 

627. The mycelium of Rhizopus is:

 
 
 
 

628. Fruits are not found in:

 
 
 
 

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

 
 
 
 

630. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

632. Protozoans are considered animals because these are:

 
 
 
 

633. Bryophyta have been placed in cryptogams because:

 
 
 
 

634. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

636. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

638. The leaves of Funaria are :

 
 
 
 

639. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

640. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. The largest known bacterium is:

 
 
 
 

645. Which is absent from the xylem of Cycas?

 
 
 
 

646. Which of the following have a prokaryotic cell?

 
 
 
 

647. The similarity between cyanobacteria and bacteria:

 
 
 
 

648. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

650. The source of litmus is :

 
 
 
 

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

 
 
 
 

652. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

655. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

657. Woody climbers are known as :

 
 
 
 

658. What are Cyanobacteria?

 
 
 
 

659. Enteric bacteria are those bacteria that live:

 
 
 
 

660. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

662. Chemosynthetic bacteria are:

 
 
 
 

663. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

669. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

671. The central part of Funaria axis is :

 
 
 
 

672. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

675. Yeast belongs to class:

 
 
 
 

676. What is a vector?

 
 
 
 

677. Protistan algae obtain their food as:

 
 
 
 

678. Funaria are commonly found :

 
 
 
 

679. Diploxylic vascular bundles are found in:

 
 
 
 

680. Parmelia belongs to :

 
 
 
 

681. Ulothrix produces :

 
 
 
 

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

 
 
 
 

683. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

685. In Gymnosperms endosperm is a:

 
 
 
 

686. The sporophyte of Riccia is represented by :

 
 
 
 

687. Winged seeds are found in :

 
 
 
 

688. Spores of which plants have chloroplast:

 
 
 
 

689. Red rot of sugarcane is caused by :

 
 
 
 

690. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

693. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

696. Multicellular and jacketed sex organs are found in :

 
 
 
 

697. The fungi are mostly:

 
 
 
 

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

 
 
 
 

699. In moss, conducting tissue is made up of

 
 
 
 

700. Lichens are indicators of :

 
 
 
 

701. Lichens form the first community in

 
 
 
 

702. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

704. The prothallus of fern represents the plant:

 
 
 
 

705. Which is the nuclear material in bacteria?

 
 
 
 

706. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

709. The archegonia of Selaginella are differentiated by:

 
 
 
 

710. Why is Cycas called a living fossil?

 
 
 
 

711. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

716. The sporangium of fern contains nearly:

 
 
 
 

717. Infective part of virus was discovered by:

 
 
 
 

718. The spur of Pinus roxburghii has :

 
 
 
 

719. Some diseases caused by bacteria are:

 
 
 
 

720. Bacteria growing on synthetic medium are called:

 
 
 
 

721. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

723. Longest known virus is:

 
 
 
 

724. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

726. Streptomycin is obtained from:

 
 
 
 

727. Azolla and Salvinia both are:

 
 
 
 

728. In moss, stomata are found:

 
 
 
 

729. Viruses are commonly transmitted in plants through:

 
 
 
 

730. Pollination in Pinus is :

 
 
 
 

731. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

734. The nucleus of bacteria is:

 
 
 
 

735.

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

 
 
 
 

737. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

739. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

741. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

745. Majority of lichens are :

 
 
 
 

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

 
 
 
 

747. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

750. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

753. Oswald Tippo’s classification was based on :

 
 
 
 

754. Bacteria are found everywhere, except:

 
 
 
 

755. Male gametophyte of Selaginella is found:

 
 
 
 

756. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

759. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

761. Which bacteria convert nitrate into nitrogen?

 
 
 
 

762. 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:

 
 
 
 

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

 
 
 
 

764. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

768. Fern plants are:

 
 
 
 

769. In moss, sporogenous tissue arises from:

 
 
 
 

770. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

774. Sexual reproduction in Rhizopus is by:

 
 
 
 

775. Pasteur is famous for his:

 
 
 
 

776. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

778. First animal pathogenic virus was discovered by:

 
 
 
 

779. The gametophyte of fern bears:

 
 
 
 

780.

781. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

782. Cleavage polyembryony is found in :

 
 
 
 

783. 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?

 
 
 
 

784. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

785. The archegonia in Selaginella develop on:

 
 
 
 

786. The rhizoids of Funaria are :

 
 
 
 

787. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

789. Wine turns sour because of:

 
 
 
 

790. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. Economic importance of bacteria lies in their being:

 
 
 
 

798. Facultative parasite is:

 
 
 
 

799. Rice, pea, potato are :

 
 
 
 

800. Lichens are pioneers of vegetation in a :

 
 
 
 

801. Who among the following discovered virus?

 
 
 
 

802. The ascus of yeast contains:

 
 
 
 

803. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

805. In moss, reduction division occurs in :

 
 
 
 

806. Discovery of penicillin was based on:

 
 
 
 

807. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

809. Cellular slime mold is:

 
 
 
 

810. Which is a tautonym?

 
 
 
 

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

 
 
 
 

812. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

813. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

816. Most primitive embryophytes are placed in:

 
 
 
 

817. Red rot of sugarcane is caused by :

 
 
 
 

818. NBG of Lucknow is now named as:

 
 
 
 

819. The chief characteristic of class Ascomycetes is:

 
 
 
 

820. Late blight of potato is caused by :

 
 
 
 

821. Which of the following shows heterotrichous habit?

 
 
 
 

822. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

826. Detailed study of bacteriophage was made by:

 
 
 
 

827. Which is a fungicide?

 
 
 
 

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

 
 
 
 

829. Bentham and Hooker placed gymnosperms:

 
 
 
 

830. Smut of maize is caused by :

 
 
 
 

831. Ovules are not found enclosed in ovary of:

 
 
 
 

832. The prothallus of fern is:

 
 
 
 

833. Cryptogams include :

 
 
 
 

834. Viruses have:

 
 
 
 

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

 
 
 
 

836. Usually, bacteria reproduce by:

 
 
 
 

837. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

839. The fungi used as food are:

 
 
 
 

840. The mode of nutrition of bacteria is usually:

 
 
 
 

841. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

843. Nannandria are:

 
 
 
 

844. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

846. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

848. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

850. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

851. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

853. The development of sporangium in Selaginella is:

 
 
 
 

854. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

855. Standard size of a herbarium sheet is:

 
 
 
 

856. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

858. Ginkgo biloba is a:

 
 
 
 

859. Which statement is wrong in regard to bacteria?

 
 
 
 

860. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

862. The stele of Dryopteris is a:

 
 
 
 

863. Pteridophytes are also known as :

 
 
 
 

864. Bacteria are considered to be plants because they: