Quiz_Random

1. Funaria is :

 
 
 
 

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

 
 
 
 

3. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

5. In Herpes virus DNA is:

 
 
 
 

6. What are Cyanobacteria?

 
 
 
 

7. Antibiotic has been extracted from :

 
 
 
 

8. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

10. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

12. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. The largest known bacterium is:

 
 
 
 

16. Yeast belongs to class:

 
 
 
 

17. Lichens reproduce by :

 
 
 
 

18. Smallpox is caused by:

 
 
 
 

19. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. Anoxygenic photosynthesis occurs in:

 
 
 
 

24. Quarantine regulations are concerned with:

 
 
 
 

25. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. Oswald Tippo’s classification was based on :

 
 
 
 

29. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

31. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

37. Acellular slime mold is/are:

 
 
 
 

38. The young leaves of Cycas have :

 
 
 
 

39. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

41. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

51. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

53. Which is the nuclear material in bacteria?

 
 
 
 

54. All protozoans possess:

 
 
 
 

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

 
 
 
 

56. The sporangium of fern contains nearly:

 
 
 
 

57. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

59. 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:

 
 
 
 

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

 
 
 
 

61. Embryophyta includes :

 
 
 
 

62. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

64. Which of the following statement is correct?

 
 
 
 

65. Cell walls of Gram-positive bacteria contain:

 
 
 
 

66. The lichens growing on rocks are called :

 
 
 
 

67. Fern phloem lacks:

 
 
 
 

68. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

70. Which of the following is true for viruses?

 
 
 
 

71. 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:

 
 
 
 

72. Late blight of potato is caused by:

 
 
 
 

73. Pythium debaryanum is the causative agent of:

 
 
 
 

74. In Cycas the fertilization is:

 
 
 
 

75. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. In moss, calyptra is formed from:

 
 
 
 

80. Pollination drop is:

 
 
 
 

81. The alga, Spirogyra are found in :

 
 
 
 

82. Bacteria which are spherical are called:

 
 
 
 

83. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. Leaf spot of groundnut is caused by :

 
 
 
 

88. The word “sea weeds” is used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. Coenogamete is found in:

 
 
 
 

93. Bacteria are considered to be plants because they:

 
 
 
 

94. Which is a gametophytic tissue?

 
 
 
 

95. Spermatophyta are characterized by producing:

 
 
 
 

96. The two conjugating gametangia of Rhizopus are:

 
 
 
 

97. Virion refers to:

 
 
 
 

98. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

100. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

105. The most primitive vascular plants is:

 
 
 
 

106. The gametophyte of moss has distinct phases :

 
 
 
 

107. Roots are absent in :

 
 
 
 

108. The ferns are usually found:

 
 
 
 

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

 
 
 
 

110. The leaves of Funaria are :

 
 
 
 

111. Photosynthetic bacteria have:

 
 
 
 

112. Majority of lichens are :

 
 
 
 

113. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

115. Which of the following applies to Selaginella?

 
 
 
 

116.

 

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

 
 
 
 

118. The prothallus of fern represents the plant:

 
 
 
 

119. Azolla and Salvinia both are:

 
 
 
 

120. Sporophyte of fern is:

 
 
 
 

121. 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?

 
 
 
 

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

 
 
 
 

123. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

125. Sporophyte of Funaria is :

 
 
 
 

126. Cellular slime mold is:

 
 
 
 

127. The fungi are usually:

 
 
 
 

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

 
 
 
 

129. Spores of which plants have chloroplast:

 
 
 
 

130. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

135. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

137. The seedless plants which possess vascular tissues are:

 
 
 
 

138. Maximum diversity of life forms occurs in :

 
 
 
 

139. The smallest bacterium is:

 
 
 
 

140. Ergot is obtained from :

 
 
 
 

141. Mixed cropping helps :

 
 
 
 

142. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

144. . Tapetum develops in:

 
 
 
 

145. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

147. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

149. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

151. Heterosporous pteridophytes always form:

 
 
 
 

152. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

155. The chloroplast of Chlamydomonas are:

 
 
 
 

156. Which among the following is a shrub?

 
 
 
 

157. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

159. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. Which group of algae have an incipient nucleus?

 
 
 
 

163. Meiosis in Ulothrix takes place:

 
 
 
 

164. To which country Antony van Leeuwenhoek belong?

 
 
 
 

165. Which is an edible fungus?

 
 
 
 

166. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

168. Bacteriophage consists of:

 
 
 
 

169. Liverworts are included in :

 
 
 
 

170. Centric discoid form of diatom is:

 
 
 
 

171. 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:

 
 
 
 

172. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

174. Agar-agar is obtained from:

 
 
 
 

175. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

177. Lichens are indicators of :

 
 
 
 

178. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

182. Rhizopus and yeast are usually:

 
 
 
 

183. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

185. Winged pollen grains are found in :

 
 
 
 

186. Water-net is the name of:

 
 
 
 

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

 
 
 
 

188. Which is a redwood tree?

 
 
 
 

189. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

191. Red rot of sugarcane is caused by :

 
 
 
 

192. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

196. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

198. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

200. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

208. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

211. 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?

 
 
 
 

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

 
 
 
 

213. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. The chromosomal number in:

 
 
 
 

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

 
 
 
 

218. 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:

 
 
 
 

219. The archegonia of Selaginella are differentiated by:

 
 
 
 

220. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

222. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

223. Cryptogams include :

 
 
 
 

224. Male gametes in Dryopteris are:

 
 
 
 

225. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

228. Cycas is :

 
 
 
 

229. To which class Riccia belongs :

 
 
 
 

230. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

232. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

233. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

239. Which of the following statements is not correct?

 
 
 
 

240. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

242. The root nodules of leguminous plants contain:

 
 
 
 

243. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

244. Total parasites belong to:

 
 
 
 

245. Sleeping sickness disease in man is caused by:

 
 
 
 

246. Chief constituents of bordeaux mixture are :

 
 
 
 

247. Bryophyta have a special character from other plants:

 
 
 
 

248. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

250. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

253. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

258. Interferon is a:

 
 
 
 

259. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

261. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

266. Mycoplasma are sensitive to:

 
 
 
 

267. In moss, reduction division occurs in :

 
 
 
 

268. Ergot of rye is caused by:

 
 
 
 

269. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

270. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

272. The tree fern is:

 
 
 
 

273. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

278. The ascus of yeast contains:

 
 
 
 

279. Funaria is :

 
 
 
 

280. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

281. Reproduction in Rhizopus is:

 
 
 
 

282. Which is a fungicide?

 
 
 
 

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

 
 
 
 

284. Water-borne bacterial diseases are:

 
 
 
 

285. Rice, pea, potato are :

 
 
 
 

286. Leprosy is caused by:

 
 
 
 

287. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

290. Fruiting body of lichens is :

 
 
 
 

291. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

293. Fern prothallus produces:

 
 
 
 

294. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

297. The central part of Funaria axis is :

 
 
 
 

298. Enzymes are absent in:

 
 
 
 

299. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

301. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

307. 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:

 
 
 
 

308. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

311. NBG of Lucknow is now named as:

 
 
 
 

312. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

313. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

318. The megasporangium of Selaginella is:

 
 
 
 

319. The coralloid roots are :

 
 
 
 

320. Vascular cryptogams is the term used for:

 
 
 
 

321. The megaspore of Selaginella on germination produces:

 
 
 
 

322. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. The order generally ends with:

 
 
 
 

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

 
 
 
 

331. The mycelium of Rhizopus is:

 
 
 
 

332. Select the correct statement: (NEET 2016)

 
 
 
 

333. Bacteriophages have been used as:

 
 
 
 

334. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

337. The fern plant is:

 
 
 
 

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

 
 
 
 

339. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

341. Black rust of wheat is caused by:

 
 
 
 

342. Chemosynthetic bacteria are:

 
 
 
 

343. Some bacteria cannot be killed easily because of:

 
 
 
 

344. Which of the following have algal zone?

 
 
 
 

345. Penicillin was discovered by:

 
 
 
 

346. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

348. The disease symptom necrosis refers to :

 
 
 
 

349. Ectocarpus produces:

 
 
 
 

350. Broad spectrum antibiotic is, which:

 
 
 
 

351. Mostly type of zygospore in Ulothrix is:

 
 
 
 

352. Siphonogamy is found in:

 
 
 
 

353. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

355. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

357. 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?

 
 
 
 

358. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

366. Which part of Riccia bears nurse cells?

 
 
 
 

367. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

369. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

370. Lichens are ecologically important because :

 
 
 
 

371. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

373. 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?

 
 
 
 

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

 
 
 
 

375. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

377. Which condition is found in Cycas?

 
 
 
 

378. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

380. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

382. Bacteria are found everywhere, except:

 
 
 
 

383. Black rust of wheat is caused by:

 
 
 
 

384. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

388. Common phycobiont in a lichen is :

 
 
 
 

389. Azolla growing in paddy fields helps in:

 
 
 
 

390. The plants of Funaria grow :

 
 
 
 

391. How a fern differs from a moss?

 
 
 
 

392. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

394.

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

 
 
 
 

396. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

398. In Cycas:

 
 
 
 

399. White rust of crucifers is caused by:

 
 
 
 

400. Sometimes the bacterial cell is enclosed in:

 
 
 
 

401. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

402. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

406. Plasmids are:

 
 
 
 

407. Heterotrichous habit means :

 
 
 
 

408. 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:

 
 
 
 

409. Endemic plants are characterised by their:

 
 
 
 

410. Which fixes atmospheric nitrogen?

 
 
 
 

411. Which is not true for Escherichia coli?

 
 
 
 

412. Detailed study of bacteriophage was made by:

 
 
 
 

413. Mycoplasma are:

 
 
 
 

414. Oswald Tippo’s classification is:

 
 
 
 

415. Black rust of wheat is caused by:

 
 
 
 

416. The Rhizopus is:

 
 
 
 

417. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

421. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

423. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

425. What is the role of nitrifying bacteria?

 
 
 
 

426. The rhizoids of Funaria are :

 
 
 
 

427. Desired type of Cycas can be grown by:

 
 
 
 

428.

429. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

432. Fern plants are:

 
 
 
 

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

 
 
 
 

434. The photosynthetic protists are:

 
 
 
 

435. Lichens are the indicator of pollution :

 
 
 
 

436. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

438. Mycoplasma is different from bacteria due to:

 
 
 
 

439. Pinus microsporophyll bears:

 
 
 
 

440. Photoautotrophic bacteria have:

 
 
 
 

441. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

444. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

446. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

448. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

450. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

452. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

454. Reserve food in Euglena is:

 
 
 
 

455. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

458. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

460. Reproduction in Cycas takes place by :

 
 
 
 

461. Lichen show :

 
 
 
 

462. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

464. Ovary is absent in :

 
 
 
 

465. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

468. The DNA of E coli is:

 
 
 
 

469. In dinoflagellates, the two flagella are:

 
 
 
 

470. Mucilaginous canals in Cycas are found in :

 
 
 
 

471. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

473. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

480. Gametophyte is the main plant body in :

 
 
 
 

481. Which lichen is called Reindeer moss?

 
 
 
 

482. In Funaria, calyptra is derived from :

 
 
 
 

483. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

485. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

487. Placenta in fern is:

 
 
 
 

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

 
 
 
 

489. Meristele of fern is:

 
 
 
 

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

 
 
 
 

491. Nannandria are:

 
 
 
 

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

 
 
 
 

493. The vascular bundles of Cycas stem are :

 
 
 
 

494. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

496. Which of the following does not contain chlorophyll?

 
 
 
 

497. Which of the following lichens is harmful?

 
 
 
 

498. Number of capsomeres forming capsid of TMV is:

 
 
 
 

499. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

501. Pinus is:

 
 
 
 

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

 
 
 
 

503. Which statement is wrong in regard to bacteria?

 
 
 
 

504. The sporangia of Selaginella are attached:

 
 
 
 

505. Longest known virus is:

 
 
 
 

506. Spermatophyta are characterized by producing:

 
 
 
 

507. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

508. Gram stain is used to:

 
 
 
 

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

 
 
 
 

510.

511. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

513. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

516. Who named prion?

 
 
 
 

517. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

523. Chemosynthetic bacteria are:

 
 
 
 

524. Embryo formation is not known in :

 
 
 
 

525. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

527. Which is the correct statement about Selaginella?

 
 
 
 

528. Lichens show :

 
 
 
 

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

 
 
 
 

530. In moss, conducting tissue is made up of

 
 
 
 

531. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

534. In moss, stomata are found:

 
 
 
 

535. Bacteria differ from viruses in being sensitive to:

 
 
 
 

536. Vegetative reproduction in Cycas is by means of :

 
 
 
 

537. The leafy fern plant represents the:

 
 
 
 

538. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

540. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

542. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

544. Which of the following shows heterotrichous habit?

 
 
 
 

545. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

547. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

549. Cycas plant in appearance resembles :

 
 
 
 

550. Mycoplasmas are not viruses in nature because:

 
 
 
 

551. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

554. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

557. Antibiotics cure the disease by:

 
 
 
 

558. Pollination in Cycas takes place by :

 
 
 
 

559. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. Which is absent from the xylem of Cycas?

 
 
 
 

563. Citrus canker is caused by:

 
 
 
 

564. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

566. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

568. In Pteris, the roots are:

 
 
 
 

569. Club moss is the common name of :

 
 
 
 

570. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

572. Ulothrix produces :

 
 
 
 

573. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

576. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

578. What is mycorrhiza?

 
 
 
 

579. Lichens are pioneers of vegetation in a :

 
 
 
 

580. Facultative saprophyte is:

 
 
 
 

581. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

583. Methanogens belong to:

 
 
 
 

584. The source of litmus is :

 
 
 
 

585. Special feature of pollen grains of Pinus is :

 
 
 
 

586. Ginkgo biloba is a:

 
 
 
 

587. Typhoid in man is caused by:

 
 
 
 

588. Seeds are characteristically found in :

 
 
 
 

589. Proembryo in Pinus is :

 
 
 
 

590. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

593. Climbers are found in genus:

 
 
 
 

594. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

596. Spirogyra differs from moss protonema in having :

 
 
 
 

597. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. Asexual reproductive body of Volvox is called:

 
 
 
 

603. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

605. LSD is:

 
 
 
 

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

 
 
 
 

607. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

608. Who discovered heterothallism in fungi?

 
 
 
 

609. Who among the following discovered virus?

 
 
 
 

610. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. Seeds are characteristically found in:

 
 
 
 

617. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

618. Red rot of sugarcane is caused by:

 
 
 
 

619. Ovules are not found enclosed in ovary in :

 
 
 
 

620. Club moss and Peat moss belong to:

 
 
 
 

621. The mode of nutrition of bacteria is usually:

 
 
 
 

622. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

624. The gametophyte produced by apospory is :

 
 
 
 

625. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

627. Psilotum is:

 
 
 
 

628. Cycas is different from mango in :

 
 
 
 

629. Streptomycin is obtained from:

 
 
 
 

630. Rhizoids of Riccia are :

 
 
 
 

631. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

633. What is streptomycin?

 
 
 
 

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

 
 
 
 

635. Yeast is a source of:

 
 
 
 

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

 
 
 
 

637. In Cycas which structure is equivalent to stamen?

 
 
 
 

638. Where does meiosis occur in yeast?

 
 
 
 

639. The lambda phase is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. Cycas revoluta is widely grown as :

 
 
 
 

644. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

647. Funaria are commonly found :

 
 
 
 

648. The fungi used as food are:

 
 
 
 

649. The development of Selaginella embryo is:

 
 
 
 

650. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

652. Red rot of sugarcane is caused by :

 
 
 
 

653. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

655. Disease resistant plant varieties can be produced by :

 
 
 
 

656. Clostridium can:

 
 
 
 

657. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

662. Protists which are diploid reproduce sexually by:

 
 
 
 

663. Heterospory is the production of:

 
 
 
 

664. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

666. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

668. Parmelia belongs to :

 
 
 
 

669. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

674. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. Wine turns sour because of:

 
 
 
 

678. Kuru, a human disease is caused by:

 
 
 
 

679. Fruits are not found in:

 
 
 
 

680. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

684. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

686. Each chloroplast in Spirogyra bears :

 
 
 
 

687. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

690. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

693. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

695. Generic name of mango is:

 
 
 
 

696. The orders generally have the uniform endings:

 
 
 
 

697. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

699. Linnaeus is credited with introducing:

 
 
 
 

700. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

703. Amoeba is a member of the phylum:

 
 
 
 

704. Which one of the following statement is wrong?

 
 
 
 

705. E coli is a:

 
 
 
 

706. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

711. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. Multicellular and jacketed sex organs are found in :

 
 
 
 

715. Ovary is absent in:

 
 
 
 

716. Which causes red tide?

 
 
 
 

717. The nucleus of bacteria is:

 
 
 
 

718. In tracheophyta:

 
 
 
 

719. Pseudomycelium is found in:

 
 
 
 

720. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

721. The largest alga is:

 
 
 
 

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

 
 
 
 

723. Photosynthetic protists belong to:

 
 
 
 

724. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

727. Economic importance of bacteria lies in their being:

 
 
 
 

728. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

730. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

733. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

736. Transfusion tissue is present in the leaflet of:

 
 
 
 

737. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

739. Embryophyta includes:

 
 
 
 

740. Green plants are classified as :

 
 
 
 

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

 
 
 
 

742. Smut of maize is caused by :

 
 
 
 

743. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

745. Viruses are considered to be:

 
 
 
 

746. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

749. Pinus gerardiana is :

 
 
 
 

750. Among the algae kelps are :

 
 
 
 

751. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Which have the largest antherozoid?

 
 
 
 

755. Protozoans are considered animals because these are:

 
 
 
 

756. The fungi are mostly:

 
 
 
 

757. What is special feature of fern archegonia?

 
 
 
 

758. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

760. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

762. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

765. The development of sporangium in Selaginella is:

 
 
 
 

766. Ethylene oxide is widely used to:

 
 
 
 

767. In Selaginella, the microsporangia are:

 
 
 
 

768. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

774. Which of the following is a heterosporous pteridophyte?

 
 
 
 

775. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

776. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

779. Late blight of potato is caused by :

 
 
 
 

780. Milk is converted to curd by:

 
 
 
 

781. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

783. The middle sterile part of capsule is called:

 
 
 
 

784. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

787. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

789. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

791. In a diplontic life cycle:

 
 
 
 

792. Most primitive group of vascular plants are:

 
 
 
 

793. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

795. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

798. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

800. The archegonia in Selaginella develop on:

 
 
 
 

801. Which of the following is sago palm?

 
 
 
 

802. Saccharomyces ludwigii ascus produces:

 
 
 
 

803. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

805. Nitrogen-fixing bacteria may be located:

 
 
 
 

806. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

809. Pteridophytes are also known as :

 
 
 
 

810. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

812. The sporophyte of Riccia is :

 
 
 
 

813. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

816. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

817. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

819. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

822. Diploxylic vascular bundles are found in:

 
 
 
 

823. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

825. What are plasmids?

 
 
 
 

826. The gametophyte of fern bears:

 
 
 
 

827. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

829. Zoogametes are not found in:

 
 
 
 

830. Absorptive nutrition is:

 
 
 
 

831. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

835. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

837. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

839. The spermatozoids of Cycas are :

 
 
 
 

840. The term stele was given by:

 
 
 
 

841. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

843. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

845. The first to isolate a plant virus was:

 
 
 
 

846. Botulism is a:

 
 
 
 

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

 
 
 
 

848. First animal pathogenic virus was discovered by:

 
 
 
 

849. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

852. Lichens form the first community in

 
 
 
 

853. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

856. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

857. 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:

 
 
 
 

858. Iodine is obtained from:

 
 
 
 

859. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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