Quiz_Random

1. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

2. Streptomyces falls under:

 
 
 
 

3. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

9. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

18. The plants of Funaria grow :

 
 
 
 

19. The spur of Pinus roxburghii has :

 
 
 
 

20. Ethylene oxide is widely used to:

 
 
 
 

21. Pseudomycelium is found in:

 
 
 
 

22. Most primitive embryophytes are placed in :

 
 
 
 

23. Gametophyte is the main plant body in :

 
 
 
 

24. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

26. Spermatophyta are characterized by producing:

 
 
 
 

27. Fern phloem lacks:

 
 
 
 

28. In moss, stomata are found:

 
 
 
 

29. Most of the lichens are composed of :

 
 
 
 

30. What are Cyanobacteria?

 
 
 
 

31. The coralloid roots are :

 
 
 
 

32. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. The nucleus of bacteria is:

 
 
 
 

36. Ovules are not found enclosed in ovary of:

 
 
 
 

37. Cocci types of bacteria are:

 
 
 
 

38. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

40. Nitrifying bacteria play an important role by converting:

 
 
 
 

41. Germ theory of disease was proposed by:

 
 
 
 

42. The gametophyte of moss has distinct phases :

 
 
 
 

43. Cyanophage is a virus that attacks:

 
 
 
 

44. The fern plant is:

 
 
 
 

45. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

47. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

49. The group algae possesses representatives belonging to kingdom:

 
 
 
 

50. Fertility of the soil is increased by:

 
 
 
 

51. 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:

 
 
 
 

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

 
 
 
 

53. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Vascular tissue is found in :

 
 
 
 

59. The lambda phase is a:

 
 
 
 

60. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

62. Most primitive embryophytes are placed in:

 
 
 
 

63. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

65. Funaria is :

 
 
 
 

66. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Downy mildew disease is caused by :

 
 
 
 

75. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

77. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Mycoplasmas are not viruses in nature because:

 
 
 
 

85. Select the wrong statement:

 
 
 
 

86. Penicillin was discovered by:

 
 
 
 

87. Who discovered cyanophages?

 
 
 
 

88. Rice, pea, potato are :

 
 
 
 

89. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

91. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

93. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

95. How a fern differs from a moss?

 
 
 
 

96. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. Usually, bacteria reproduce by:

 
 
 
 

100. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

104. Cycas is:

 
 
 
 

105. Diploxylic vascular bundles are found in:

 
 
 
 

106. Generic name of mango is:

 
 
 
 

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

 
 
 
 

108. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

111. Fruiting body of lichens is :

 
 
 
 

112. Rhizoids of Riccia are :

 
 
 
 

113. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

115. Antibiotics cure the disease by:

 
 
 
 

116. Most resistant spore in bacteria is:

 
 
 
 

117. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

121. 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:

 
 
 
 

122. Saccharomyces is well known for:

 
 
 
 

123. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

126. Leaf spot of groundnut is caused by :

 
 
 
 

127. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

129. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

132. Some biologists have used the term Mycetozoa for:

 
 
 
 

133. The chief characteristic of class Ascomycetes is:

 
 
 
 

134. Ulothrix produces :

 
 
 
 

135. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. The prothallus of fern represents the plant:

 
 
 
 

139. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

140. Absorptive nutrition is:

 
 
 
 

141. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

143. Which of the following are included in Tracheophyta?

 
 
 
 

144. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

150. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

152. Mycoplasma was discovered by:

 
 
 
 

153. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

155. Cycas plant in appearance resembles :

 
 
 
 

156. Which bacteria convert nitrate into nitrogen?

 
 
 
 

157. Cycas revoluta is widely grown as :

 
 
 
 

158. In dinoflagellates, the two flagella are:

 
 
 
 

159. Facultative parasite is:

 
 
 
 

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

 
 
 
 

161. Botulism is a:

 
 
 
 

162. Gymnosperms could also be called as:

 
 
 
 

163. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

165. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

167. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

170. Which of the following is true for Selaginella?

 
 
 
 

171. Water bloom is generally caused by :

 
 
 
 

172. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

174. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

176. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

179. Agar-agar is obtained from:

 
 
 
 

180. The sori in Dryopteris are found on:

 
 
 
 

181. Saccharomyces is used in:

 
 
 
 

182. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

184. Ergot of rye is caused by:

 
 
 
 

185. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

187. Fern prothallus is:

 
 
 
 

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

 
 
 
 

189. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

191. John Hutchinson divided dicots into two divisions:

 
 
 
 

192. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

194. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

197. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. Red rot of sugarcane is caused by :

 
 
 
 

201. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

202. Citrus canker is caused by :

 
 
 
 

203. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

205. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

207. The gametophyte of fern is as:

 
 
 
 

208. Disease resistant plant varieties can be produced by :

 
 
 
 

209. 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:

 
 
 
 

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

 
 
 
 

211. The rhizoids of Funaria are :

 
 
 
 

212. Who named prion?

 
 
 
 

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

 
 
 
 

214. Which have the largest antherozoid?

 
 
 
 

215. The tallest moss in the world is :

 
 
 
 

216. Which is the correct statement about Selaginella?

 
 
 
 

217. 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?

 
 
 
 

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

 
 
 
 

219. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

221. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

223. Soil fertility is lost by the activities of:

 
 
 
 

224. Which class of Protozoa includes all parasitic forms?

 
 
 
 

225. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

228. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

230. 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?

 
 
 
 

231. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

233. The truncated cone of HIV consists of:

 
 
 
 

234. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

239. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

246. The megaspore of Selaginella on germination produces:

 
 
 
 

247. Which is an edible fungus?

 
 
 
 

248. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

250. Gram stain is used to:

 
 
 
 

251. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

253. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. Number of capsomeres forming capsid of TMV is:

 
 
 
 

257. Club moss is the common name of :

 
 
 
 

258. An Hfr bacterium is one that contains:

 
 
 
 

259. The sexual reproductive organs in Rhizopus are:

 
 
 
 

260. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

262. The term stele was given by:

 
 
 
 

263. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. Streptomycin is obtained from:

 
 
 
 

268. In Gymnosperms endosperm is a:

 
 
 
 

269. Acellular slime mold is/are:

 
 
 
 

270. Placenta in fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. In Selaginella, the microsporangia are:

 
 
 
 

276. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

278. Most appropriate word for protozoans is:

 
 
 
 

279. Nitrogen-fixing bacteria may be located:

 
 
 
 

280. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. What is a vector?

 
 
 
 

285. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

288. The roots of Cycas are :

 
 
 
 

289. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

293. The fungi are mostly:

 
 
 
 

294. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

296. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

298. One of the distinctive feature of Spirogyra is :

 
 
 
 

299. Total parasites belong to:

 
 
 
 

300. Helotism word is used for the symbiosis between :

 
 
 
 

301. The leaves of Funaria are :

 
 
 
 

302. Green plants are classified as :

 
 
 
 

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

 
 
 
 

304. The central part of Funaria axis is :

 
 
 
 

305. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

307. Azolla and Salvinia both are:

 
 
 
 

308. The young leaves of Cycas have :

 
 
 
 

309. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

310. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

312. Meristele of fern is:

 
 
 
 

313. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

315. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

321. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

323. Pollination drop is:

 
 
 
 

324. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

326. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. Cellular slime mold is:

 
 
 
 

330. The zoospores of Ulothrix are :

 
 
 
 

331. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

333. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

335. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

337. The root nodules of leguminous plants contain:

 
 
 
 

338. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

341. Ovary is absent in:

 
 
 
 

342. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

343. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

345. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

350. In Funaria :

 
 
 
 

351. The genetic material of poxvirus is:

 
 
 
 

352.

 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. Embryophyta includes:

 
 
 
 

358. Pollination in Cycas takes place by :

 
 
 
 

359. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

361. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

363. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

365. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

367. Isomorphic type alternation of generation is found in:

 
 
 
 

368. In moss, reduction division occurs in :

 
 
 
 

369. Spores of which plants have chloroplast:

 
 
 
 

370. Meiosis in Ulothrix takes place:

 
 
 
 

371. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

375. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

377. Who discovered streptomycin?

 
 
 
 

378. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

380. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

381. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

382. Penicillin is obtained from:

 
 
 
 

383. Sporophyte of Funaria is :

 
 
 
 

384. Which of the following are included in Tracheophyta?

 
 
 
 

385. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

387. Pasteurization of milk involves heating for:

 
 
 
 

388. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

391. Pteridophyta are also called:

 
 
 
 

392. Which of the following lichens is harmful?

 
 
 
 

393. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

396. Among the algae kelps are :

 
 
 
 

397. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

399. Coenogamete is found in:

 
 
 
 

400. Black rust of wheat is caused by:

 
 
 
 

401. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

403. Viroids have:

 
 
 
 

404. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. The fungi used as food are:

 
 
 
 

408. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

410. Detailed study of bacteriophage was made by:

 
 
 
 

411. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

416. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

418. Photosynthetic protists belong to:

 
 
 
 

419. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

421. Which lichen is called Reindeer moss?

 
 
 
 

422. Winged pollen grains are found in :

 
 
 
 

423.

424. 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?

 
 
 
 

425. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

428. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

430. The development of sporangium in Selaginella is:

 
 
 
 

431. The most important property of yeast is:

 
 
 
 

432. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

434. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

435. Iodine is obtained from:

 
 
 
 

436. The largest alga is:

 
 
 
 

437. Bryophyta have a special character from other plants:

 
 
 
 

438. First animal pathogenic virus was discovered by:

 
 
 
 

439. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

441. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

443. Typhoid in man is caused by:

 
 
 
 

444. Which is not found in bacteria?

 
 
 
 

445. Mycoplasma are:

 
 
 
 

446. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

452. Cleavage polyembryony is found in :

 
 
 
 

453. Yeast is a source of:

 
 
 
 

454. Desired type of Cycas can be grown by:

 
 
 
 

455. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

457. Male gametophyte of Selaginella is found:

 
 
 
 

458. Pasteurized milk is:

 
 
 
 

459. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. Protists which are diploid reproduce sexually by:

 
 
 
 

467. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

471. 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:

 
 
 
 

472. Smut of maize is caused by :

 
 
 
 

473. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

475. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

477. Psilotum is:

 
 
 
 

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

 
 
 
 

479. The chief characteristic of bryophyta is that :

 
 
 
 

480. Triple antigen injection or vaccine are for:

 
 
 
 

481. The similarity between cyanobacteria and bacteria:

 
 
 
 

482. Water-borne bacterial diseases are:

 
 
 
 

483. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

485. Bacteriophage consists of:

 
 
 
 

486. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

488. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

489. The ascus of yeast contains:

 
 
 
 

490. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

492. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

495. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

497. Lichens form the first community in

 
 
 
 

498. Lichens show :

 
 
 
 

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

 
 
 
 

500. Spirogyra differs from moss protonema in having :

 
 
 
 

501. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

504. What are plasmids?

 
 
 
 

505. Lichen show :

 
 
 
 

506. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

508. Smallpox is caused by:

 
 
 
 

509. Lichens are indicators of :

 
 
 
 

510. Chemosynthetic bacteria are:

 
 
 
 

511. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

513. 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?

 
 
 
 

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

 
 
 
 

515. The phloem of vascular system of Cycas is :

 
 
 
 

516. Methanogens belong to:

 
 
 
 

517. What is streptomycin?

 
 
 
 

518. Enzymes are absent in:

 
 
 
 

519. All algae have:

 
 
 
 

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

 
 
 
 

521. Which fixes atmospheric nitrogen?

 
 
 
 

522. Funaria is a Bryophyta because :

 
 
 
 

523. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

529. Selaginella differs from Moss in having:

 
 
 
 

530. Viruses are considered to be:

 
 
 
 

531. What is mycorrhiza?

 
 
 
 

532. In Gymnocarpeae the fruiting body is :

 
 
 
 

533. Fruits are not found in:

 
 
 
 

534. To which class Riccia belongs :

 
 
 
 

535. The sporophyte of Riccia is represented by :

 
 
 
 

536. Which of the following is sago palm?

 
 
 
 

537. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

545. Viruses have:

 
 
 
 

546. Which group of algae have an incipient nucleus?

 
 
 
 

547. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

549. The upper region of moss capsule is :

 
 
 
 

550. The disease apple scab is caused by:

 
 
 
 

551. Which of the following is a heterosporous pteridophyte?

 
 
 
 

552. The first to isolate a plant virus was:

 
 
 
 

553. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

555. Most common type of conjugation in Spirogyra is :

 
 
 
 

556. Most of the algae are :

 
 
 
 

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

 
 
 
 

558. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

565. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

567. How is moss different from fern?

 
 
 
 

568. Infective part of virus was discovered by:

 
 
 
 

569. LSD is:

 
 
 
 

570. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

572. Parmelia belongs to :

 
 
 
 

573. The two conjugating gametangia of Rhizopus are:

 
 
 
 

574. Bacteria were first discovered by:

 
 
 
 

575. Leprosy is caused by:

 
 
 
 

576. Quarantine regulations are concerned with:

 
 
 
 

577. The smallest bacterium is:

 
 
 
 

578. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

580.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

584. Economic importance of bacteria lies in their being:

 
 
 
 

585. Which of the following are absent in Mycoplasma?

 
 
 
 

586. Ovules are not found enclosed in ovary in :

 
 
 
 

587. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

589. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

591. Which of the following have a prokaryotic cell?

 
 
 
 

592. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

594. The megasporangium of Selaginella is:

 
 
 
 

595. Roots are absent in :

 
 
 
 

596. Pollination in Pinus is :

 
 
 
 

597. Longest known virus is:

 
 
 
 

598. Rhizopus and yeast are usually:

 
 
 
 

599. Winged seeds are found in :

 
 
 
 

600. The chloroplast of Chlamydomonas are:

 
 
 
 

601. Why is Cycas called a living fossil?

 
 
 
 

602. Club moss and Peat moss belong to:

 
 
 
 

603. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

606. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

609. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

612. In moss, peristomial teeth are:

 
 
 
 

613. The spermatozoids of Cycas are :

 
 
 
 

614. Fern prothallus produces:

 
 
 
 

615. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

620. Fern plants are:

 
 
 
 

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

 
 
 
 

622. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

624. All archaebacteria lack:

 
 
 
 

625. Water-net is the name of:

 
 
 
 

626. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

629. In a diplontic life cycle:

 
 
 
 

630. The teeth of peristome of Funaria are :

 
 
 
 

631. Bacteriophages have been used as:

 
 
 
 

632. The orders generally have the uniform endings:

 
 
 
 

633. The sporangia of Selaginella are attached:

 
 
 
 

634. Which is a tautonym?

 
 
 
 

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

 
 
 
 

636. Which condition is found in Cycas?

 
 
 
 

637. Antibiotic has been extracted from :

 
 
 
 

638. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

641. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

643. Yeast grows more rapidly in:

 
 
 
 

644. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

650. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

652. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

654. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

660. In moss, sporogenous tissue arises from:

 
 
 
 

661. The leaves of Funaria are :

 
 
 
 

662. Which is an exception to cell theory?

 
 
 
 

663. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

666. The role of meiosis is for:

 
 
 
 

667. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

668. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. The order generally ends with:

 
 
 
 

673. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. Amoeba is a member of the phylum:

 
 
 
 

678. Some diseases caused by bacteria are:

 
 
 
 

679. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

681. Plasmids are:

 
 
 
 

682. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

685. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

688. 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:

 
 
 
 

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

 
 
 
 

690. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

692. Virion refers to:

 
 
 
 

693. Lichens are the indicator of pollution :

 
 
 
 

694. Circular DNA is seen in:

 
 
 
 

695. The stele of Dryopteris is a:

 
 
 
 

696. Botulinum toxin effects:

 
 
 
 

697. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

699. Metulae are found in:

 
 
 
 

700. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

702. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

704. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

708. Climbers are found in genus:

 
 
 
 

709. Bacteria are found everywhere, except:

 
 
 
 

710. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

712. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

714. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

715. True sexuality is not found in:

 
 
 
 

716. Interferon is a:

 
 
 
 

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

 
 
 
 

718. Siphonogamy is found in:

 
 
 
 

719. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

723. Liverworts are included in :

 
 
 
 

724. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

726. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

728. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

730. Germination of the seed of Pinus is :

 
 
 
 

731. Ergot is obtained from :

 
 
 
 

732. Proembryo in Pinus is :

 
 
 
 

733. Cycas is :

 
 
 
 

734. Bacteria differ from viruses in being sensitive to:

 
 
 
 

735. Reserve food in Euglena is:

 
 
 
 

736. Cyathia is characterized by:

 
 
 
 

737. Which among the following is a shrub?

 
 
 
 

738. Which of the following have algal zone?

 
 
 
 

739. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

742. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

743. The chromosomal number in:

 
 
 
 

744. The antherozoids of Funaria are :

 
 
 
 

745. Oswald Tippo’s classification is:

 
 
 
 

746. Mostly type of zygospore in Ulothrix is:

 
 
 
 

747. The archegonia of Selaginella are differentiated by:

 
 
 
 

748. The source of litmus is :

 
 
 
 

749. All protozoans possess:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. Zoogametes are not found in:

 
 
 
 

753. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

756. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

759. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

761. Late blight of potato is caused by:

 
 
 
 

762. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

764. In moss, calyptra is formed from:

 
 
 
 

765. Chief constituents of bordeaux mixture are :

 
 
 
 

766. The microsporophylls on the cone of Cycas are :

 
 
 
 

767. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

772. Ovary is absent in :

 
 
 
 

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

 
 
 
 

774. The photosynthetic protists are:

 
 
 
 

775. Sexual reproduction of lichen is due to :

 
 
 
 

776. Majority of lichens are :

 
 
 
 

777. Cycas is similar to a mustard plant :

 
 
 
 

778. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

781. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

782. Lichens reproduce by :

 
 
 
 

783. The mycelium of Rhizopus is:

 
 
 
 

784. In Cycas:

 
 
 
 

785. The disease symptom necrosis refers to :

 
 
 
 

786. The seedless plants which possess vascular tissues are:

 
 
 
 

787. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

790. Pinus is:

 
 
 
 

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

 
 
 
 

792. Who discovered heterothallism in fungi?

 
 
 
 

793. Maximum diversity of life forms occurs in :

 
 
 
 

794. Select the wrong statement:

 
 
 
 

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

 
 
 
 

796. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

799. Little leaf disease of Brinjal is caused by:

 
 
 
 

800. Pteridophytes are also known as :

 
 
 
 

801. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

803. Woody climbers are known as :

 
 
 
 

804. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

806. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

812. Diphtheria is caused by:

 
 
 
 

813. Embryophyta includes :

 
 
 
 

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

 
 
 
 

815. Nannandria are:

 
 
 
 

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

 
 
 
 

817. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

820. Iodine is obtained from :

 
 
 
 

821. Embryo formation is not known in :

 
 
 
 

822. The fungi are usually:

 
 
 
 

823. The mode of nutrition of bacteria is usually:

 
 
 
 

824. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

828.

829. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

831. Vascular cryptogams is the term used for:

 
 
 
 

832. Which is a gametophytic tissue?

 
 
 
 

833. Discovery of penicillin was based on:

 
 
 
 

834. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

841. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

843. Asexual reproductive body of Volvox is called:

 
 
 
 

844. Which statement is wrong in regard to bacteria?

 
 
 
 

845. The leafy fern plant represents the:

 
 
 
 

846. The ferns are usually found:

 
 
 
 

847. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

848. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

850. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

853. 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:

 
 
 
 

854. Milk is converted to curd by:

 
 
 
 

855. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

860. The tree fern is:

 
 
 
 

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

 
 
 
 

862. Vegetative reproduction in Cycas is by means of :

 
 
 
 

863. Polystelic condition is found in:

 
 
 
 

864. Select the correct statement: (NEET 2016)