Quiz_Random

1. 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?

 
 
 
 

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

 
 
 
 

3. What is special feature of fern archegonia?

 
 
 
 

4. Lichens form the first community in

 
 
 
 

5. Black rust of wheat is caused by:

 
 
 
 

6. Chemosynthetic bacteria are:

 
 
 
 

7. The lambda phase is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. Aflatoxin is produced as a product in :

 
 
 
 

11. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Meristele of fern is:

 
 
 
 

16. Winged seeds are found in :

 
 
 
 

17. Woody climbers are known as :

 
 
 
 

18. Most of the lichens are composed of :

 
 
 
 

19. The smallest bacterium is:

 
 
 
 

20. Ulothrix produces :

 
 
 
 

21. Total parasites belong to:

 
 
 
 

22. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

29. In tracheophyta:

 
 
 
 

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

 
 
 
 

31. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

33. The flagella of Chlamydomonas are:

 
 
 
 

34. The photosynthetic protists are:

 
 
 
 

35. Methanogens belong to:

 
 
 
 

36. Funaria can be differentiated from Cycas :

 
 
 
 

37. Which of the following shows heterotrichous habit?

 
 
 
 

38. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. The fungi used as food are:

 
 
 
 

42. Fruits are not found in :

 
 
 
 

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

 
 
 
 

44.

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

 
 
 
 

46. Bacteria which are spherical are called:

 
 
 
 

47. The chief characteristic of class Ascomycetes is:

 
 
 
 

48. Ginkgo biloba is a:

 
 
 
 

49. Fairy ring is the name given to:

 
 
 
 

50. LSD is:

 
 
 
 

51. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

53. Spermatophyta are characterized by producing:

 
 
 
 

54. Citrus canker is caused by :

 
 
 
 

55. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

57. Facultative saprophyte is:

 
 
 
 

58. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

59. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

60. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

62. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. Heterosporous pteridophytes always form:

 
 
 
 

67. Mycoplasma are:

 
 
 
 

68. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

70. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

72. The role of meiosis is for:

 
 
 
 

73. The sporangium of fern contains nearly:

 
 
 
 

74. The word “sea weeds” is used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

79. Yeast belongs to class:

 
 
 
 

80. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

81. Nitrifying bacteria play an important role by converting:

 
 
 
 

82. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

87. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

92. Most primitive embryophytes are placed in:

 
 
 
 

93. Late blight of potato is caused by:

 
 
 
 

94. Acetobacter is useful in:

 
 
 
 

95. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. Siphonogamy is found in:

 
 
 
 

100. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

102. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

104. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. Which of the following have algal zone?

 
 
 
 

108. Cyanophage is a virus that attacks:

 
 
 
 

109. The Rhizopus is:

 
 
 
 

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

 
 
 
 

111. Embryophyta includes:

 
 
 
 

112. The source of litmus is :

 
 
 
 

113. The gametophyte of moss has distinct phases :

 
 
 
 

114. Viruses have:

 
 
 
 

115. Each chloroplast in Spirogyra bears :

 
 
 
 

116. Special feature of pollen grains of Pinus is :

 
 
 
 

117. Nitrogen-fixing bacteria may be located:

 
 
 
 

118. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

120. Water-borne bacterial diseases are:

 
 
 
 

121. Liverworts are included in :

 
 
 
 

122. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

124. In moss, stomata are found:

 
 
 
 

125. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

127. Which one of the following is a monocot?

 
 
 
 

128. Mycoplasma was discovered by:

 
 
 
 

129. Pasteurized milk is:

 
 
 
 

130. The microsporophylls on the cone of Cycas are :

 
 
 
 

131. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

133. In moss, sporogenous tissue arises from:

 
 
 
 

134. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

137. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. Cycas plant in appearance resembles :

 
 
 
 

142. Most common type of conjugation in Spirogyra is :

 
 
 
 

143. Funaria is a Bryophyta because :

 
 
 
 

144. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

147. Sometimes the bacterial cell is enclosed in:

 
 
 
 

148. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

151. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

153. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

155. Among the algae kelps are :

 
 
 
 

156. The spermatozoids of Cycas are :

 
 
 
 

157. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

164. Most primitive embryophytes are placed in :

 
 
 
 

165. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. The sporophyte of Riccia is :

 
 
 
 

169. Sporophyte of Funaria is :

 
 
 
 

170. Which lichen is called Reindeer moss?

 
 
 
 

171. Bivalved siliceous shell or frustule occur in:

 
 
 
 

172. Streptomycin is obtained from:

 
 
 
 

173. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

175. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

178. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

181. Maximum diversity of life forms occurs in :

 
 
 
 

182. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

185. Green plants are classified as :

 
 
 
 

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

 
 
 
 

187. Aflatoxin is produced by:

 
 
 
 

188. Smut of maize is caused by :

 
 
 
 

189. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

191. Photoautotrophic bacteria have:

 
 
 
 

192. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

194. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

197. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

202. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

205. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

209. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

210. The fern plant is:

 
 
 
 

211. Which among the following is a shrub?

 
 
 
 

212. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

214. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

216. Metulae are found in:

 
 
 
 

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

 
 
 
 

218. Placenta in fern is:

 
 
 
 

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

 
 
 
 

220. Water-net is the name of:

 
 
 
 

221. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

223. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

226. Discovery of penicillin was based on:

 
 
 
 

227. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

228. Etiology includes the study of :

 
 
 
 

229. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

231. Ergot is obtained from :

 
 
 
 

232. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

233. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

235. All algae have:

 
 
 
 

236. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

240. Cleavage polyembryony is found in :

 
 
 
 

241. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

244. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

246. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

248. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

251. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

253. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

257. Anoxygenic photosynthesis occurs in:

 
 
 
 

258. The chloroplast in Ulothrix is :

 
 
 
 

259. Leaf spot of groundnut is caused by :

 
 
 
 

260. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

270. Nannandria are:

 
 
 
 

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

 
 
 
 

272. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

274. In Selaginella, the microsporangia are:

 
 
 
 

275. In moss, calyptra is formed from:

 
 
 
 

276. Streptomyces falls under:

 
 
 
 

277. Citrus canker is caused by:

 
 
 
 

278. Rhizoids of Riccia are :

 
 
 
 

279. The tree fern is:

 
 
 
 

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

 
 
 
 

281. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

286. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

291. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

293. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

295. Roots are absent in :

 
 
 
 

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

 
 
 
 

297. Psilotum is:

 
 
 
 

298. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

300. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

302. Which statement is wrong in regard to bacteria?

 
 
 
 

303. Penicillin is obtained from:

 
 
 
 

304. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

307. Saccharomyces is well known for:

 
 
 
 

308. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

309. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

312. Milk is converted to curd by:

 
 
 
 

313. Pasteurization of milk involves heating for:

 
 
 
 

314. What is streptomycin?

 
 
 
 

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

 
 
 
 

316. Diploxylic vascular bundles are found in:

 
 
 
 

317. The sexual reproductive organs in Rhizopus are:

 
 
 
 

318. The leaf of Cycas shows:

 
 
 
 

319. Cellular slime mold is:

 
 
 
 

320. Majority of lichens are :

 
 
 
 

321. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

323. The term stele was given by:

 
 
 
 

324. 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:

 
 
 
 

325. The sori in Dryopteris are found on:

 
 
 
 

326. Sleeping sickness disease in man is caused by:

 
 
 
 

327. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

334. The most primitive vascular plants is:

 
 
 
 

335. What is mycorrhiza?

 
 
 
 

336. What are plasmids?

 
 
 
 

337. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

341. Absorptive nutrition is:

 
 
 
 

342. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

343. Photosynthetic bacteria have:

 
 
 
 

344. The similarity between cyanobacteria and bacteria:

 
 
 
 

345. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

347. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

349. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Centric discoid form of diatom is:

 
 
 
 

353. Banana bunchy top is caused by :

 
 
 
 

354. Who discovered cyanophages?

 
 
 
 

355. Generic name of mango is:

 
 
 
 

356. Early blight of potato is caused by:

 
 
 
 

357. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

359. Tautonyms are illegitimate in:

 
 
 
 

360. The leaves of Funaria are :

 
 
 
 

361. Bacteriophage consists of:

 
 
 
 

362. Cycas is :

 
 
 
 

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

 
 
 
 

364. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

365. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

368. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

371. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

377. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

379. In Gymnosperms endosperm is a:

 
 
 
 

380. Cryptogams include :

 
 
 
 

381. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

383. Winged pollen grains are found in :

 
 
 
 

384. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

386. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

389. Cell walls of Gram-positive bacteria contain:

 
 
 
 

390. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

392. Fertility of the soil is increased by:

 
 
 
 

393. Club moss and Peat moss belong to:

 
 
 
 

394. The teeth of peristome of Funaria are :

 
 
 
 

395. 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?

 
 
 
 

396. Funaria is :

 
 
 
 

397. Gametophyte is the main plant body in :

 
 
 
 

398. 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?

 
 
 
 

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

 
 
 
 

400. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

404. Select the wrong statement:

 
 
 
 

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

 
 
 
 

406. Which of the following applies to Selaginella?

 
 
 
 

407. Ergot of rye is caused by:

 
 
 
 

408. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

410. Broad spectrum antibiotic is, which:

 
 
 
 

411. In moss, reduction division occurs in :

 
 
 
 

412. The zygospore in Rhizopus on germination forms:

 
 
 
 

413. First animal pathogenic virus was discovered by:

 
 
 
 

414. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

416.

 

417. Genetic material of TMV is:

 
 
 
 

418. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

422. Lichens are the indicator of pollution :

 
 
 
 

423. Polystelic condition is found in:

 
 
 
 

424. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

426. Seeds are characteristically found in:

 
 
 
 

427. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. The archegonia in Selaginella develop on:

 
 
 
 

434. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

436. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

439. Which group of algae have an incipient nucleus?

 
 
 
 

440. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

441. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

448. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

454. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

455. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

457. The antherozoids of Funaria are :

 
 
 
 

458. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

460. Multicellular and jacketed sex organs are found in :

 
 
 
 

461. Indusium in Dryopteris is:

 
 
 
 

462. Halophiles are the bacteria that require for growth:

 
 
 
 

463. Ovary is absent in:

 
 
 
 

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

 
 
 
 

465. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

469. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

471. Coenogamete is found in:

 
 
 
 

472. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

475. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

477. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

483. Protozoans are considered animals because these are:

 
 
 
 

484. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

486. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

488. Diphtheria is caused by:

 
 
 
 

489. 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:

 
 
 
 

490. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

492. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

494. Funaria is :

 
 
 
 

495. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498. Sexual reproduction in Rhizopus is by:

 
 
 
 

499. Helotism word is used for the symbiosis between :

 
 
 
 

500. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

504. What is the role of nitrifying bacteria?

 
 
 
 

505. The prothallus of fern is:

 
 
 
 

506. Pollination drop is:

 
 
 
 

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

 
 
 
 

508. Where does meiosis occur in yeast?

 
 
 
 

509. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

511. Botulism is a:

 
 
 
 

512. The roots of Cycas are :

 
 
 
 

513. Which of the following lichens is harmful?

 
 
 
 

514. 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:

 
 
 
 

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

 
 
 
 

516. In a bacteriophage, DNA is present in:

 
 
 
 

517. 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?

 
 
 
 

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

 
 
 
 

519. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

522. Most primitive kind of flower is represented by:

 
 
 
 

523.

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

 
 
 
 

525. Smallpox is caused by:

 
 
 
 

526. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

529. Rice, pea, potato are :

 
 
 
 

530. Saccharomyces is used in:

 
 
 
 

531. Ectocarpus produces:

 
 
 
 

532. In a diplontic life cycle:

 
 
 
 

533. Zoogametes are not found in:

 
 
 
 

534. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

536. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

540. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. Cycas is:

 
 
 
 

544. To which country Antony van Leeuwenhoek belong?

 
 
 
 

545. Pseudomycelium is found in:

 
 
 
 

546. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

552. Mycoplasmas are not viruses in nature because:

 
 
 
 

553. Why is Cycas called a living fossil?

 
 
 
 

554. Bacteria growing on synthetic medium are called:

 
 
 
 

555. The disease symptom necrosis refers to :

 
 
 
 

556. Reserve food in Euglena is:

 
 
 
 

557.

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

 
 
 
 

559. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

561. Soil fertility is lost by the activities of:

 
 
 
 

562. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

569. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

571. Pasteur is famous for his:

 
 
 
 

572. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

574. Synzoospore is produced in:

 
 
 
 

575. Fern prothallus produces:

 
 
 
 

576. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

577. The spur of Pinus roxburghii has :

 
 
 
 

578. Simple polyembryony is found in :

 
 
 
 

579. In Pteris, the roots are:

 
 
 
 

580. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

582. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

585. The smallest unit of classification is:

 
 
 
 

586. Which of the following are included in Tracheophyta?

 
 
 
 

587. Select the wrong statement:

 
 
 
 

588. Virion refers to:

 
 
 
 

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

 
 
 
 

590. Cyathia is characterized by:

 
 
 
 

591. Ovary is absent in :

 
 
 
 

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

 
 
 
 

593. Botulinum toxin effects:

 
 
 
 

594. To which class Riccia belongs :

 
 
 
 

595. Meiosis in Ulothrix takes place:

 
 
 
 

596. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

597. Bentham and Hooker placed gymnosperms:

 
 
 
 

598. Lichens are indicators of :

 
 
 
 

599. Rhizopus belongs to:

 
 
 
 

600. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. 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:

 
 
 
 

604. The fungi are usually:

 
 
 
 

605. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

608. Azolla and Salvinia both are:

 
 
 
 

609. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

611. Heterotrichous habit means :

 
 
 
 

612. Longest known virus is:

 
 
 
 

613. Reproduction in Cycas takes place by :

 
 
 
 

614. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

616. Seeds are characteristically found in :

 
 
 
 

617. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

619. In Funaria :

 
 
 
 

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

 
 
 
 

621. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

624. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Which of the following is a heterosporous pteridophyte?

 
 
 
 

628. Which bacteria convert nitrate into nitrogen?

 
 
 
 

629. Iodine is obtained from :

 
 
 
 

630. The rhizoids of Funaria are :

 
 
 
 

631. Ovules are not found enclosed in ovary in :

 
 
 
 

632. Fern plants are:

 
 
 
 

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

 
 
 
 

634. Bacteria are considered to be plants because they:

 
 
 
 

635. The development of Selaginella embryo is:

 
 
 
 

636. Enzymes are absent in:

 
 
 
 

637. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

638. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

641. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

643. Pythium debaryanum is the causative agent of:

 
 
 
 

644. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

647. Mucilaginous canals in Cycas are found in :

 
 
 
 

648. The mode of nutrition of bacteria is usually:

 
 
 
 

649. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

653. Cycas is different from mango in :

 
 
 
 

654. In Herpes virus DNA is:

 
 
 
 

655. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

657. Photosynthetic protists belong to:

 
 
 
 

658. Lichens show :

 
 
 
 

659. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

662. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

663. The central part of Funaria axis is :

 
 
 
 

664. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

666. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

668. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

671. All protozoans possess:

 
 
 
 

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

 
 
 
 

673. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

675. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

677. Heterospory is the production of:

 
 
 
 

678. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

680. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

681. Small epidermal swellings due to infection are called :

 
 
 
 

682. Pollination in Cycas takes place by :

 
 
 
 

683. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. Wine turns sour because of:

 
 
 
 

687. Some bacteria cannot be killed easily because of:

 
 
 
 

688. Which of the following is a monocot?

 
 
 
 

689. In moss, peristomial teeth are:

 
 
 
 

690. Fern prothallus is:

 
 
 
 

691. Which of the following does not contain chlorophyll?

 
 
 
 

692. Germ theory of disease was proposed by:

 
 
 
 

693. The sporangia of Selaginella are attached:

 
 
 
 

694. Mycoplasma are sensitive to:

 
 
 
 

695. The lichens growing on rocks are called :

 
 
 
 

696. Cocci types of bacteria are:

 
 
 
 

697. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

702. The chromosomal number in:

 
 
 
 

703. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

706. What is a vector?

 
 
 
 

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

 
 
 
 

708. Isomorphic type alternation of generation is found in:

 
 
 
 

709. The root nodules of leguminous plants contain:

 
 
 
 

710. Saccharomyces ludwigii ascus produces:

 
 
 
 

711. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

715. . Tapetum develops in:

 
 
 
 

716. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

718. The development of sporangium in Selaginella is:

 
 
 
 

719. Some diseases caused by bacteria are:

 
 
 
 

720. Ovules are not found enclosed in ovary in :

 
 
 
 

721. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. In binomial system most of the words are:

 
 
 
 

726. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

731. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

734. Agar-agar is obtained from:

 
 
 
 

735. Transfusion tissue is present in the leaflet of:

 
 
 
 

736. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

738. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

739. The disease apple scab is caused by:

 
 
 
 

740. Leprosy is caused by:

 
 
 
 

741. One of the distinctive feature of Spirogyra is :

 
 
 
 

742. The gametophyte produced by apospory is :

 
 
 
 

743. Vegetative reproduction in Cycas is by means of :

 
 
 
 

744. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

746. Redness of red sea is due to :

 
 
 
 

747. The phloem of vascular system of Cycas is :

 
 
 
 

748. Vascular cryptogam is the term used for :

 
 
 
 

749. 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:

 
 
 
 

750. Typhoid in man is caused by:

 
 
 
 

751. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

753. Clostridium can:

 
 
 
 

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

 
 
 
 

755. Vascular cryptogams is the term used for:

 
 
 
 

756. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

758. Male gametes in Dryopteris are:

 
 
 
 

759. Pinus gerardiana is :

 
 
 
 

760. Iodine is obtained from:

 
 
 
 

761. Gram stain is used to:

 
 
 
 

762. Which causes red tide?

 
 
 
 

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

 
 
 
 

764. Triple antigen injection or vaccine are for:

 
 
 
 

765. Heterospory and ligulate leaves are a feature of:

 
 
 
 

766. The archegonia of Selaginella are differentiated by:

 
 
 
 

767. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

769. Which is an exception to cell theory?

 
 
 
 

770. Pinus is:

 
 
 
 

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

 
 
 
 

772. The stele of Dryopteris is a:

 
 
 
 

773. In Cycas:

 
 
 
 

774. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

776. Bacteria differ from viruses in being sensitive to:

 
 
 
 

777. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

779. Infective part of virus was discovered by:

 
 
 
 

780. Viroids have:

 
 
 
 

781. The megaspore of Selaginella on germination produces:

 
 
 
 

782. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

787. Which of the following statement is correct?

 
 
 
 

788. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

790. Protistan algae obtain their food as:

 
 
 
 

791. Which class of Protozoa includes all parasitic forms?

 
 
 
 

792. What are Cyanobacteria?

 
 
 
 

793. 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:

 
 
 
 

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

 
 
 
 

795. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

797. Which is the correct statement about Selaginella?

 
 
 
 

798. Azolla growing in paddy fields helps in:

 
 
 
 

799. Pollination in Pinus is :

 
 
 
 

800. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

803. The largest alga is:

 
 
 
 

804. Amoeba is a member of the phylum:

 
 
 
 

805. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

807. The first to isolate a plant virus was:

 
 
 
 

808. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

811. Proembryo in Pinus is :

 
 
 
 

812. Sporophyte of fern is:

 
 
 
 

813. Lichens are ecologically important because :

 
 
 
 

814. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

817. Embryophyta includes :

 
 
 
 

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

 
 
 
 

819. Bryophyta have a special character from other plants:

 
 
 
 

820. The fungi are mostly:

 
 
 
 

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

 
 
 
 

822. Oswald Tippo’s classification is:

 
 
 
 

823. Reproduction in Rhizopus is:

 
 
 
 

824. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

826. Who named prion?

 
 
 
 

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

 
 
 
 

828. The chief characteristic of bryophyta is that :

 
 
 
 

829. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

832. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

835. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

837. Which is an edible fungus?

 
 
 
 

838. Who discovered streptomycin?

 
 
 
 

839. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

845. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

846. Fruits are not found in Cycas because:

 
 
 
 

847. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. Which is a tautonym?

 
 
 
 

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

 
 
 
 

852. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

854. Lichens reproduce by :

 
 
 
 

855. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

857. Green plants are classified as:

 
 
 
 

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

 
 
 
 

859. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

861. Yeast grows more rapidly in:

 
 
 
 

862. Economic importance of bacteria lies in their being:

 
 
 
 

863. Most resistant spore in bacteria is:

 
 
 
 

864. Parmelia belongs to :