Quiz_Random

1. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. Enzymes are absent in:

 
 
 
 

5. Heterospory is the production of:

 
 
 
 

6. In Cycas:

 
 
 
 

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

 
 
 
 

8. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

9. Which of the following shows heterotrichous habit?

 
 
 
 

10. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

12. Cyanophage is a virus that attacks:

 
 
 
 

13. The chloroplast of Chlamydomonas are:

 
 
 
 

14. Ergot of rye is caused by:

 
 
 
 

15. 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?

 
 
 
 

16. Fern prothallus produces:

 
 
 
 

17. What is streptomycin?

 
 
 
 

18. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

20. Most common type of conjugation in Spirogyra is :

 
 
 
 

21. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

23. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Gametophyte is the main plant body in :

 
 
 
 

27. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Most primitive embryophytes are placed in:

 
 
 
 

31. Vascular tissue is found in :

 
 
 
 

32. The Rhizopus is:

 
 
 
 

33. The mycelium of Rhizopus is:

 
 
 
 

34.

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

 
 
 
 

36. Which of the following statement is correct?

 
 
 
 

37. The source of litmus is :

 
 
 
 

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

 
 
 
 

39. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

41. Most primitive kind of flower is represented by:

 
 
 
 

42. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

44. Milk is converted to curd by:

 
 
 
 

45. Gymnosperms could also be called as:

 
 
 
 

46. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Which is not true for Escherichia coli?

 
 
 
 

51. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Photosynthetic bacteria have:

 
 
 
 

55. The antherozoids of Funaria are :

 
 
 
 

56. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

61. Spirogyra differs from moss protonema in having :

 
 
 
 

62. Aflatoxin is produced by:

 
 
 
 

63. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Which fixes atmospheric nitrogen?

 
 
 
 

68. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

70. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. Acellular slime mold is/are:

 
 
 
 

74. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

76. Spermatophyta are characterized by producing:

 
 
 
 

77. Spermatophyta are characterized by producing:

 
 
 
 

78. Bacteriophage consists of:

 
 
 
 

79. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Broad spectrum antibiotic is, which:

 
 
 
 

83. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

85. Fruits are not found in :

 
 
 
 

86. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

91. Water bloom is generally caused by :

 
 
 
 

92. Psilotum is:

 
 
 
 

93. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. Pollination in Cycas takes place by :

 
 
 
 

97. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

99. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

101. Lichen show :

 
 
 
 

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

 
 
 
 

103. All algae have:

 
 
 
 

104. Pinus microsporophyll bears:

 
 
 
 

105. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

106. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

111. Photoautotrophic bacteria have:

 
 
 
 

112. 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:

 
 
 
 

113. In Selaginella, the microsporangia are:

 
 
 
 

114. 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?

 
 
 
 

115. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

120. Streptomyces falls under:

 
 
 
 

121. Ovary is absent in :

 
 
 
 

122. Which is a tautonym?

 
 
 
 

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

 
 
 
 

124. All protozoans possess:

 
 
 
 

125. Funaria is a Bryophyta because :

 
 
 
 

126. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

128. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

130. Club moss and Peat moss belong to:

 
 
 
 

131. The sexual reproductive organs in Rhizopus are:

 
 
 
 

132. Clostridium can:

 
 
 
 

133. Late blight of potato is caused by :

 
 
 
 

134. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

136. Interferon is a:

 
 
 
 

137. Roots are absent in :

 
 
 
 

138. Anoxygenic photosynthesis occurs in:

 
 
 
 

139. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

142. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

145. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

147. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

150. Iodine is obtained from:

 
 
 
 

151. The megaspore of Selaginella on germination produces:

 
 
 
 

152. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

153. Seeds are characteristically found in :

 
 
 
 

154. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

156. The fungi used as food are:

 
 
 
 

157. Bacteria are considered to be plants because they:

 
 
 
 

158. The role of meiosis is for:

 
 
 
 

159. Metulae are found in:

 
 
 
 

160. Which of the following is true for Selaginella?

 
 
 
 

161. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. Funaria are commonly found :

 
 
 
 

166. Streptomycin is obtained from:

 
 
 
 

167. Who discovered cyanophages?

 
 
 
 

168. Little leaf disease of Brinjal is caused by:

 
 
 
 

169. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

171. The truncated cone of HIV consists of:

 
 
 
 

172. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

174. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

177. Azolla and Salvinia both are:

 
 
 
 

178. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

180. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

183. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

185. The smallest bacterium is:

 
 
 
 

186. Green plants are classified as :

 
 
 
 

187. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

189. Germ theory of disease was proposed by:

 
 
 
 

190. Lichens are ecologically important because :

 
 
 
 

191. The antibiotic is obtained from:

 
 
 
 

192. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

193. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

199. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. Water-borne bacterial diseases are:

 
 
 
 

207. Antibiotics cure the disease by:

 
 
 
 

208. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

212. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. The disease apple scab is caused by:

 
 
 
 

221. In Cycas the fertilization is:

 
 
 
 

222. Vascular cryptogam is the term used for :

 
 
 
 

223. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

225. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

228. Cycas is :

 
 
 
 

229. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

231. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

238. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

240. Number of capsomeres forming capsid of TMV is:

 
 
 
 

241. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

246. Select the correct statement: (NEET 2016)

 
 
 
 

247. Pteridophyta are also called:

 
 
 
 

248. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

249. Leaf spot of groundnut is caused by :

 
 
 
 

250. Most of the algae are :

 
 
 
 

251. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

254. Gram stain is used to:

 
 
 
 

255. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

257. Citrus canker is caused by:

 
 
 
 

258. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

261. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

263. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

266. Bacteria are placed under:

 
 
 
 

267. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

269. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. Cycas revoluta is widely grown as :

 
 
 
 

273. Some diseases caused by bacteria are:

 
 
 
 

274. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

279. Cleavage polyembryony is found in :

 
 
 
 

280. The order generally ends with:

 
 
 
 

281. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

285. Mostly type of zygospore in Ulothrix is:

 
 
 
 

286. Black rust of wheat is caused by:

 
 
 
 

287. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

292. Cycas is similar to a mustard plant :

 
 
 
 

293. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

295. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

297. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

299. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

301. The coralloid roots are :

 
 
 
 

302. Smut of maize is caused by :

 
 
 
 

303. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

305. Botulinum toxin effects:

 
 
 
 

306. The Rhizopus gametes are formed in:

 
 
 
 

307. Some biologists have used the term Mycetozoa for:

 
 
 
 

308. Synzoospore is produced in:

 
 
 
 

309. John Hutchinson divided dicots into two divisions:

 
 
 
 

310. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

312. Oswald Tippo’s classification was based on :

 
 
 
 

313. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

316. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

325. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

327. Methanogens belong to:

 
 
 
 

328. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

330. In a bacteriophage, DNA is present in:

 
 
 
 

331. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

333. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

335. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

337. Which is a fungicide?

 
 
 
 

338. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

340. Small epidermal swellings due to infection are called :

 
 
 
 

341. 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?

 
 
 
 

342. Water-net is the name of:

 
 
 
 

343. Meristele of fern is:

 
 
 
 

344. Placenta in fern is:

 
 
 
 

345. Ovules are not found enclosed in ovary in :

 
 
 
 

346. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

348. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

349. Usually, bacteria reproduce by:

 
 
 
 

350. White rust of crucifers is caused by:

 
 
 
 

351. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

353. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

355. Cryptogams include :

 
 
 
 

356. 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:

 
 
 
 

357. Lichens form the first community in

 
 
 
 

358. What are Cyanobacteria?

 
 
 
 

359.

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

 
 
 
 

361. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

363. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

366. Meiosis in Ulothrix takes place:

 
 
 
 

367. Funaria can be differentiated from Cycas :

 
 
 
 

368. Pasteur is famous for his:

 
 
 
 

369. What are plasmids?

 
 
 
 

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

 
 
 
 

371. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

373. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

376. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

378. Nitrogen-fixing bacteria may be located:

 
 
 
 

379. The sporophyte of Riccia is :

 
 
 
 

380. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

382. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

384. The fungi that grow on wood are called:

 
 
 
 

385. Penicillin was discovered by:

 
 
 
 

386. One of the distinctive feature of Spirogyra is :

 
 
 
 

387. Germination of the seed of Pinus is :

 
 
 
 

388. Reproduction in Rhizopus is:

 
 
 
 

389. Pollination drop is:

 
 
 
 

390. Facultative parasite is:

 
 
 
 

391. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

393. How is moss different from fern?

 
 
 
 

394. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

396. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

397. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

402. The sporangia of Selaginella are attached:

 
 
 
 

403. The nucleus of bacteria is:

 
 
 
 

404. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. Woody climbers are known as :

 
 
 
 

408. The gametophyte of fern is as:

 
 
 
 

409. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

411. Which of the following are included in Tracheophyta?

 
 
 
 

412. Embryophyta includes:

 
 
 
 

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

 
 
 
 

414. Select the wrong statement:

 
 
 
 

415. Zoogametes are not found in:

 
 
 
 

416. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. Reproduction in Cycas takes place by :

 
 
 
 

424. Club moss is the common name of :

 
 
 
 

425. Plasmids are:

 
 
 
 

426. Lichens reproduce by :

 
 
 
 

427. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

429. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

432. Cyathia is characterized by:

 
 
 
 

433. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

435. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

438. The lichens growing on rocks are called :

 
 
 
 

439. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

444. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

447. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

449. Desired type of Cycas can be grown by:

 
 
 
 

450. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

453. The disease symptom necrosis refers to :

 
 
 
 

454. Pinus gerardiana is :

 
 
 
 

455. Cocci types of bacteria are:

 
 
 
 

456. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

458. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

461. Seeds are characteristically found in:

 
 
 
 

462. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. The archegonia of Selaginella are differentiated by:

 
 
 
 

466. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

468. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

470. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. Green plants are classified as:

 
 
 
 

475. Cycas is different from mango in :

 
 
 
 

476. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

478. Which bacteria convert nitrate into nitrogen?

 
 
 
 

479. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

484. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

486. Economic importance of bacteria lies in their being:

 
 
 
 

487. Iodine is obtained from :

 
 
 
 

488. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

490. Ovary is absent in:

 
 
 
 

491. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

493. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

496. Protozoans are considered animals because these are:

 
 
 
 

497. Rice, pea, potato are :

 
 
 
 

498. The lambda phase is a:

 
 
 
 

499. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

501. Fruits are not found in Cycas because:

 
 
 
 

502. Quarantine regulations are concerned with:

 
 
 
 

503. Endemic plants are characterised by their:

 
 
 
 

504. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

509. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

512. Rhizoids of Riccia are :

 
 
 
 

513. Standard size of a herbarium sheet is:

 
 
 
 

514. The ferns are usually found:

 
 
 
 

515. Fern plants are:

 
 
 
 

516. The term stele was given by:

 
 
 
 

517. The fungi are mostly:

 
 
 
 

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

 
 
 
 

519. Yeast is a source of:

 
 
 
 

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

 
 
 
 

521. The orders generally have the uniform endings:

 
 
 
 

522. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

525. The spermatozoids of Cycas are :

 
 
 
 

526. Bryophyta have a special character from other plants:

 
 
 
 

527. NBG of Lucknow is now named as:

 
 
 
 

528.

 

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

 
 
 
 

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

 
 
 
 

531. Bacteria are found everywhere, except:

 
 
 
 

532. The chromosomal number in:

 
 
 
 

533. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. Triple antigen injection or vaccine are for:

 
 
 
 

537. Heterocysts are found in :

 
 
 
 

538. Which one of the following statement is wrong?

 
 
 
 

539. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. Vascular cryptogams is the term used for:

 
 
 
 

543. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

545. Linnaeus is credited with introducing:

 
 
 
 

546. The seedless plants which possess vascular tissues are:

 
 
 
 

547. Reserve food in Euglena is:

 
 
 
 

548. Etiology includes the study of :

 
 
 
 

549. Absorptive nutrition is:

 
 
 
 

550. Spores of which plants have chloroplast:

 
 
 
 

551. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

556. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

559. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

561. Multicellular and jacketed sex organs are found in :

 
 
 
 

562. Citrus canker is caused by :

 
 
 
 

563. Winged seeds are found in :

 
 
 
 

564. Smallpox is caused by:

 
 
 
 

565. Virion refers to:

 
 
 
 

566. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

568. In binomial system most of the words are:

 
 
 
 

569. Funaria is :

 
 
 
 

570. Which of the following is a monocot?

 
 
 
 

571. Bacteriophages have been used as:

 
 
 
 

572. Pasteurized milk is:

 
 
 
 

573. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

575. Halophiles are the bacteria that require for growth:

 
 
 
 

576. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

580. Helotism word is used for the symbiosis between :

 
 
 
 

581. The first to isolate a plant virus was:

 
 
 
 

582. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

586. The central part of Funaria axis is :

 
 
 
 

587. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

589. Pasteurization of milk involves heating for:

 
 
 
 

590. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

592. Which among the following is a shrub?

 
 
 
 

593. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

595. The megasporangium of Selaginella is:

 
 
 
 

596. Viruses have:

 
 
 
 

597. Select the wrong statement:

 
 
 
 

598. The tallest moss in the world is :

 
 
 
 

599. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. In moss, sporophyte is formed on:

 
 
 
 

603. Transfusion tissue is present in the leaflet of:

 
 
 
 

604. Banana bunchy top is caused by :

 
 
 
 

605. Embryophyta includes :

 
 
 
 

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

 
 
 
 

607. The leaves of Funaria are :

 
 
 
 

608. Typhoid in man is caused by:

 
 
 
 

609. Which is an exception to cell theory?

 
 
 
 

610. Lichens show :

 
 
 
 

611. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

613. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

615. In moss, stomata are found:

 
 
 
 

616. The smallest unit of classification is:

 
 
 
 

617. Fern phloem lacks:

 
 
 
 

618. Pythium debaryanum is the causative agent of:

 
 
 
 

619. 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?

 
 
 
 

620. First animal pathogenic virus was discovered by:

 
 
 
 

621. Ovules are not found enclosed in ovary in :

 
 
 
 

622. Siphonogamy is found in:

 
 
 
 

623. Virus and bacteriophage are made-up of:

 
 
 
 

624. The microsporophylls on the cone of Cycas are :

 
 
 
 

625. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

627. Chemosynthetic bacteria are:

 
 
 
 

628. Tautonyms are illegitimate in:

 
 
 
 

629. LSD is:

 
 
 
 

630. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

635. Pneumonia is caused by:

 
 
 
 

636. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

638. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

639. Choose the correct statement about Spirogyra:

 
 
 
 

640. Cycas is:

 
 
 
 

641. Which of the following is a parasitic algae?

 
 
 
 

642. Polystelic condition is found in:

 
 
 
 

643. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

645. In moss, reduction division occurs in :

 
 
 
 

646. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

648. Fern prothallus is:

 
 
 
 

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

 
 
 
 

650. Sexual reproduction of lichen is due to :

 
 
 
 

651. Most of the lichens are composed of :

 
 
 
 

652. The development of sporangium in Selaginella is:

 
 
 
 

653. . Tapetum develops in:

 
 
 
 

654. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

656. Which condition is found in Cycas?

 
 
 
 

657. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. Which lichen is called Reindeer moss?

 
 
 
 

661. The upper region of moss capsule is :

 
 
 
 

662. Centric discoid form of diatom is:

 
 
 
 

663. The tree fern is:

 
 
 
 

664. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

667. True sexuality is not found in:

 
 
 
 

668. Downy mildew disease is caused by :

 
 
 
 

669. Longest known virus is:

 
 
 
 

670. In angiosperms double fertilization represents:

 
 
 
 

671. Pinus is:

 
 
 
 

672. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

675. Selaginella differs from Moss in having:

 
 
 
 

676. Late blight of potato is caused by:

 
 
 
 

677. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

679. In Funaria :

 
 
 
 

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

 
 
 
 

681. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

683. Which have the largest antherozoid?

 
 
 
 

684. Winged pollen grains are found in :

 
 
 
 

685. The fern plant is:

 
 
 
 

686. The rhizoids of Funaria are :

 
 
 
 

687. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

692. Protistan algae obtain their food as:

 
 
 
 

693. Enteric bacteria are those bacteria that live:

 
 
 
 

694. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

695. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

696. The group algae possesses representatives belonging to kingdom:

 
 
 
 

697. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

701. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

702. Mycoplasma contains:

 
 
 
 

703. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

705. Maximum diversity of life forms occurs in :

 
 
 
 

706. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

707. The zygospore in Rhizopus on germination forms:

 
 
 
 

708. Disease resistant plant varieties can be produced by :

 
 
 
 

709. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

712. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

714. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

715. The chloroplast in Ulothrix is :

 
 
 
 

716. The mode of nutrition of bacteria is usually:

 
 
 
 

717. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

719. Which statement is wrong in regard to bacteria?

 
 
 
 

720. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

723. The plants of Funaria grow :

 
 
 
 

724. Oswald Tippo’s classification is:

 
 
 
 

725. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

728. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

730. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

736. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

740. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

742. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

745. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

747. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

749. The young leaves of Cycas have :

 
 
 
 

750. Mycoplasmas are not viruses in nature because:

 
 
 
 

751. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

753. The sporophyte of Riccia is represented by :

 
 
 
 

754. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

756. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

757. 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:

 
 
 
 

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

 
 
 
 

759. Lichens are indicators of :

 
 
 
 

760. Protists which are diploid reproduce sexually by:

 
 
 
 

761. Sporophyte of Funaria is :

 
 
 
 

762. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

765. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

767. Climbers are found in genus:

 
 
 
 

768. Which one of the following is a monocot?

 
 
 
 

769. E coli is a:

 
 
 
 

770. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

772. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

775. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

777. Parmelia belongs to :

 
 
 
 

778. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

780. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

782. The prothallus of fern represents the plant:

 
 
 
 

783. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

785. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

787. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

790. The largest alga is:

 
 
 
 

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

 
 
 
 

792. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

794. The gametophyte produced by apospory is :

 
 
 
 

795. The ascus of yeast contains:

 
 
 
 

796. 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:

 
 
 
 

797. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

799. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

801. Which is the nuclear material in bacteria?

 
 
 
 

802. Who named prion?

 
 
 
 

803. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

809. Among the algae kelps are :

 
 
 
 

810. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

812. Viroids have:

 
 
 
 

813. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

817. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

821. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

824. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

826. Pollination in Pinus is :

 
 
 
 

827. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

829. Cellular slime mold is:

 
 
 
 

830. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

832. Lichens are pioneers of vegetation in a :

 
 
 
 

833. Acetobacter is useful in:

 
 
 
 

834. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

836. 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:

 
 
 
 

837. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

839. The alga, Spirogyra are found in :

 
 
 
 

840. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

842. Funaria is :

 
 
 
 

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

 
 
 
 

844.

845. Spirogyra represents the :

 
 
 
 

846. In Pteris, the roots are:

 
 
 
 

847. The gametophyte of moss has distinct phases :

 
 
 
 

848. Mycoplasma was discovered by:

 
 
 
 

849. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

851. In Pteris, the archegonia are present:

 
 
 
 

852. 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:

 
 
 
 

853. Lichens reproduce by :

 
 
 
 

854. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

856. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

860. The chief characteristic of bryophyta is that :

 
 
 
 

861. Lichens are the indicator of pollution :

 
 
 
 

862. Liverworts are included in :

 
 
 
 

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

 
 
 
 

864. The leaf of Cycas shows: