Quiz_Random

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

 
 
 
 

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

 
 
 
 

3. The disease apple scab is caused by:

 
 
 
 

4. The mode of nutrition of bacteria is usually:

 
 
 
 

5. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

10.

11. The Rhizopus gametes are formed in:

 
 
 
 

12. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

14. Green plants are classified as:

 
 
 
 

15. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

17. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

19. Who among the following discovered virus?

 
 
 
 

20. Lichens show :

 
 
 
 

21. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

23. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Virus and bacteriophage are made-up of:

 
 
 
 

27. Penicillin is obtained from:

 
 
 
 

28. Broad spectrum antibiotic is, which:

 
 
 
 

29. Nitrifying bacteria play an important role by converting:

 
 
 
 

30. Cycas plant in appearance resembles :

 
 
 
 

31. The chief characteristic of bryophyta is that :

 
 
 
 

32. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

34. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

36. Polystelic condition is found in:

 
 
 
 

37. Most primitive embryophytes are placed in :

 
 
 
 

38. Fertility of the soil is increased by:

 
 
 
 

39. Ovary is absent in :

 
 
 
 

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

 
 
 
 

41. The coralloid roots are :

 
 
 
 

42. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

44. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

46. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

48. Cycas is different from mango in :

 
 
 
 

49. In Pteris, the archegonia are present:

 
 
 
 

50. The gametophyte produced by apospory is :

 
 
 
 

51. In Gymnosperms endosperm is a:

 
 
 
 

52. The similarity between cyanobacteria and bacteria:

 
 
 
 

53. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

55. Nannandria are:

 
 
 
 

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

 
 
 
 

57. Which causes red tide?

 
 
 
 

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

 
 
 
 

59. The megaspore of Selaginella on germination produces:

 
 
 
 

60. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

65. The disease symptom necrosis refers to :

 
 
 
 

66. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. Most resistant spore in bacteria is:

 
 
 
 

71. Which of the following statements is not correct?

 
 
 
 

72. The lambda phase is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. The role of meiosis is for:

 
 
 
 

76. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. 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:

 
 
 
 

80. Which is a tautonym?

 
 
 
 

81. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Chief constituents of bordeaux mixture are :

 
 
 
 

85. Fruits are not found in:

 
 
 
 

86. Iodine is obtained from:

 
 
 
 

87. Bacteria differ from viruses in being sensitive to:

 
 
 
 

88. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

90. Mycoplasma is different from bacteria due to:

 
 
 
 

91. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

93. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

95. Which of the following is true for viruses?

 
 
 
 

96. Placenta in fern is:

 
 
 
 

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

 
 
 
 

98. Oswald Tippo’s classification is:

 
 
 
 

99. First animal pathogenic virus was discovered by:

 
 
 
 

100. Yeast belongs to class:

 
 
 
 

101. Saccharomyces is used in:

 
 
 
 

102. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

105. Most common type of conjugation in Spirogyra is :

 
 
 
 

106. Which of the following is true for Selaginella?

 
 
 
 

107. The sporophyte of Riccia is :

 
 
 
 

108. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

110. Club moss is the common name of :

 
 
 
 

111. Which statement is wrong in regard to bacteria?

 
 
 
 

112. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

121. Multicellular and jacketed sex organs are found in :

 
 
 
 

122. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

125. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. 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:

 
 
 
 

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

 
 
 
 

130. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

137. In a diplontic life cycle:

 
 
 
 

138. Facultative saprophyte is:

 
 
 
 

139. Plasmids are:

 
 
 
 

140. Streptomyces falls under:

 
 
 
 

141. An alga which is rich in proteins:

 
 
 
 

142. Saccharomyces ludwigii ascus produces:

 
 
 
 

143. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

145. The spur of Pinus roxburghii has :

 
 
 
 

146. What are plasmids?

 
 
 
 

147. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

149. In tracheophyta:

 
 
 
 

150.

 

151. Why is Cycas called a living fossil?

 
 
 
 

152. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

154. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

159. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

163. Some bacteria cannot be killed easily because of:

 
 
 
 

164. Usually, bacteria reproduce by:

 
 
 
 

165. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

169. Red rot of sugarcane is caused by :

 
 
 
 

170. 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:

 
 
 
 

171. Vascular cryptogam is the term used for :

 
 
 
 

172. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

174. Proembryo in Pinus is :

 
 
 
 

175. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

177. Lichens form the first community in

 
 
 
 

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

 
 
 
 

179. Which is not true for Escherichia coli?

 
 
 
 

180. Which group of algae have an incipient nucleus?

 
 
 
 

181. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. Spermatophyta are characterized by producing:

 
 
 
 

185. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

190. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

192. The most important property of yeast is:

 
 
 
 

193. The term stele was given by:

 
 
 
 

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

 
 
 
 

195. The mycelium of Rhizopus is:

 
 
 
 

196. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

198. Cryptogams include :

 
 
 
 

199. The male gametes of Pinus are :

 
 
 
 

200. Fruits are not found in :

 
 
 
 

201. What is special feature of fern archegonia?

 
 
 
 

202. Pythium debaryanum is the causative agent of:

 
 
 
 

203. Facultative parasite is:

 
 
 
 

204. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

208. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

210. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

219. Botulism is a:

 
 
 
 

220. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. Discovery of penicillin was based on:

 
 
 
 

226. Vascular cryptogams is the term used for:

 
 
 
 

227. Gametophyte is the main plant body in :

 
 
 
 

228. White rust of crucifers is caused by:

 
 
 
 

229. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

232. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

234. Citrus canker is caused by:

 
 
 
 

235. The chromosomal number in:

 
 
 
 

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

 
 
 
 

237. Which is an edible fungus?

 
 
 
 

238. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

240. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

242. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

246. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

248. The stele of Dryopteris is a:

 
 
 
 

249. 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?

 
 
 
 

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

 
 
 
 

251. Lichens reproduce by :

 
 
 
 

252. Virion refers to:

 
 
 
 

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

 
 
 
 

254. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

256. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

259. Cyanophage is a virus that attacks:

 
 
 
 

260. Cycas is:

 
 
 
 

261. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

263. The sporangia of Selaginella are attached:

 
 
 
 

264. Indusium in Dryopteris is:

 
 
 
 

265. The seedless plants which possess vascular tissues are:

 
 
 
 

266. The largest alga is:

 
 
 
 

267.

268. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

270. LSD is:

 
 
 
 

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

 
 
 
 

272. Banana bunchy top is caused by :

 
 
 
 

273. Parmelia belongs to :

 
 
 
 

274. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

276. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

278. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

280. Viruses are commonly transmitted in plants through:

 
 
 
 

281. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

287. Mycoplasma are:

 
 
 
 

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

 
 
 
 

289. Yeast grows more rapidly in:

 
 
 
 

290. Smut of maize is caused by :

 
 
 
 

291. Which of the following have algal zone?

 
 
 
 

292. Cocci types of bacteria are:

 
 
 
 

293. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

295. Gram stain is used to:

 
 
 
 

296. Which of the following is a monocot?

 
 
 
 

297. Saccharomyces is well known for:

 
 
 
 

298. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

299. In dinoflagellates, the two flagella are:

 
 
 
 

300. Mycoplasma was discovered by:

 
 
 
 

301. The phloem of vascular system of Cycas is :

 
 
 
 

302. The sporangiophores in Rhizopus are:

 
 
 
 

303. The smallest bacterium is:

 
 
 
 

304. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

306. Coenogamete is found in:

 
 
 
 

307. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

309. Ectocarpus produces:

 
 
 
 

310. Most of the algae are :

 
 
 
 

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

 
 
 
 

312. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

316. The first to isolate a plant virus was:

 
 
 
 

317. The rhizoids of Funaria are :

 
 
 
 

318. Rhizopus belongs to:

 
 
 
 

319. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

321. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

324. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

326. The fern plant is:

 
 
 
 

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

 
 
 
 

328. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

330. NBG of Lucknow is now named as:

 
 
 
 

331. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

333. Select the wrong statement:

 
 
 
 

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

 
 
 
 

335. Acetobacter is useful in:

 
 
 
 

336. Downy mildew disease is caused by :

 
 
 
 

337. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

340. Fruits are not found in Cycas because:

 
 
 
 

341. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

344. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

345. The genetic material of poxvirus is:

 
 
 
 

346. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

349. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

357. In a bacteriophage, DNA is present in:

 
 
 
 

358. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

360. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

362. Little leaf disease of Brinjal is caused by:

 
 
 
 

363. Anoxygenic photosynthesis occurs in:

 
 
 
 

364.

365. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

367. Each chloroplast in Spirogyra bears :

 
 
 
 

368. The prothallus of fern represents the plant:

 
 
 
 

369. Most primitive embryophytes are placed in:

 
 
 
 

370. Which bacteria convert nitrate into nitrogen?

 
 
 
 

371. Germination of the seed of Pinus is :

 
 
 
 

372. Yeast is a source of:

 
 
 
 

373. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

375. Which condition is found in Cycas?

 
 
 
 

376. Chemosynthetic bacteria are:

 
 
 
 

377. Club moss and Peat moss belong to:

 
 
 
 

378. Halophiles are the bacteria that require for growth:

 
 
 
 

379. Woody climbers are known as :

 
 
 
 

380. Seeds are characteristically found in:

 
 
 
 

381. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

383. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

385. The fungi that grow on wood are called:

 
 
 
 

386. The tree fern is:

 
 
 
 

387. 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?

 
 
 
 

388. Standard size of a herbarium sheet is:

 
 
 
 

389. Antibiotics cure the disease by:

 
 
 
 

390. E coli is a:

 
 
 
 

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

 
 
 
 

392. 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:

 
 
 
 

393. Among the algae kelps are :

 
 
 
 

394. An Hfr bacterium is one that contains:

 
 
 
 

395. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

397. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

399. In moss, conducting tissue is made up of

 
 
 
 

400. Spirogyra represents the :

 
 
 
 

401. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

403. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

408. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

410. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

412. Bacteria are placed under:

 
 
 
 

413. Selaginella differs from Moss in having:

 
 
 
 

414. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

416. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

418. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

420. Viruses are considered to be:

 
 
 
 

421. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

423. Acellular slime mold is/are:

 
 
 
 

424. Ulothrix produces :

 
 
 
 

425. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

429. Winged pollen grains are found in :

 
 
 
 

430. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

432. Ovules are not found enclosed in ovary of:

 
 
 
 

433. The order generally ends with:

 
 
 
 

434. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

439. Nitrogen-fixing bacteria may be located:

 
 
 
 

440. Ovules are not found enclosed in ovary in :

 
 
 
 

441. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

443. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

445. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

447. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

452. Which of the following is sago palm?

 
 
 
 

453. Azolla growing in paddy fields helps in:

 
 
 
 

454. Heterocysts are found in :

 
 
 
 

455. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

459. Which of the following is a parasitic algae?

 
 
 
 

460. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

461. The root nodules of leguminous plants contain:

 
 
 
 

462. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. Which have the largest antherozoid?

 
 
 
 

467. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

469. Pollination drop is:

 
 
 
 

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

 
 
 
 

471. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

473. True sexuality is not found in:

 
 
 
 

474. Funaria can be differentiated from Cycas :

 
 
 
 

475. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

477. The central part of Funaria axis is :

 
 
 
 

478. Which is the nuclear material in bacteria?

 
 
 
 

479. Which of the following is a heterosporous pteridophyte?

 
 
 
 

480. Heterospory is the production of:

 
 
 
 

481. Choose the correct statement about Spirogyra:

 
 
 
 

482. Funaria is :

 
 
 
 

483. Milk is converted to curd by:

 
 
 
 

484. Pythium debaryanum is the causative agent of:

 
 
 
 

485. Mycoplasmas are not viruses in nature because:

 
 
 
 

486. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

488. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

489. Linnaeus is credited with introducing:

 
 
 
 

490. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

493. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

494. Special feature of pollen grains of Pinus is :

 
 
 
 

495. Which among the following is a shrub?

 
 
 
 

496. Sporophyte of fern is:

 
 
 
 

497. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

502. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

504. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. The sori in Dryopteris are found on:

 
 
 
 

508. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

512. Which one of the following is a monocot?

 
 
 
 

513. Male gametophyte of Selaginella is found:

 
 
 
 

514. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

517. All algae have:

 
 
 
 

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

 
 
 
 

519. The spermatozoids of Cycas are :

 
 
 
 

520. Which organisms are the oldest life forms?

 
 
 
 

521. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

523. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

524. The ascus of yeast contains:

 
 
 
 

525. Pseudomycelium is found in:

 
 
 
 

526. Which of the following statement is correct?

 
 
 
 

527. Enteric bacteria are those bacteria that live:

 
 
 
 

528. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. Vascular tissue is found in :

 
 
 
 

533. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. Ergot of rye is caused by:

 
 
 
 

537. What is streptomycin?

 
 
 
 

538. Common phycobiont in a lichen is :

 
 
 
 

539. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

541. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

545. In Funaria, calyptra is derived from :

 
 
 
 

546. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

548. Funaria is :

 
 
 
 

549. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

552. Lichens are the indicator of pollution :

 
 
 
 

553. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

555. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

558. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. Disease resistant plant varieties can be produced by :

 
 
 
 

563. 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?

 
 
 
 

564. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

571. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

574. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

576. Amoeba is a member of the phylum:

 
 
 
 

577. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

581. In angiosperms double fertilization represents:

 
 
 
 

582. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

586. Majority of lichens are :

 
 
 
 

587. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. The largest known bacterium is:

 
 
 
 

591. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

595. Black rust of wheat is caused by:

 
 
 
 

596. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

597. The source of litmus is :

 
 
 
 

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

 
 
 
 

599. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. Leprosy is caused by:

 
 
 
 

604. The fungi are mostly:

 
 
 
 

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

 
 
 
 

606. Bacteria growing on synthetic medium are called:

 
 
 
 

607. The ferns are usually found:

 
 
 
 

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

 
 
 
 

609. Which is the correct statement about Selaginella?

 
 
 
 

610. Which class of Protozoa includes all parasitic forms?

 
 
 
 

611. Most of the lichens are composed of :

 
 
 
 

612. Heterospory and ligulate leaves are a feature of:

 
 
 
 

613. Soil fertility is lost by the activities of:

 
 
 
 

614. Psilotum is:

 
 
 
 

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

 
 
 
 

616. Lichens are indicators of :

 
 
 
 

617. A gill of Agaricus:

 
 
 
 

618. Some biologists have used the term Mycetozoa for:

 
 
 
 

619. The fungi used as food are:

 
 
 
 

620. Bacteria are found everywhere, except:

 
 
 
 

621. Embryophyta includes :

 
 
 
 

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

 
 
 
 

623. Embryophyta includes:

 
 
 
 

624. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

629. Which one of the following statement is wrong?

 
 
 
 

630. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

636. Tautonyms are illegitimate in:

 
 
 
 

637. Detailed study of bacteriophage was made by:

 
 
 
 

638. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

640. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

642. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

646. Lichens are ecologically important because :

 
 
 
 

647. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

650. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

653. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

654. What is mycorrhiza?

 
 
 
 

655. The microsporophylls on the cone of Cycas are :

 
 
 
 

656. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

658. In Cycas microsporangia are borne on:

 
 
 
 

659. The development of sporangium in Selaginella is:

 
 
 
 

660. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

662. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

665. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

668. 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:

 
 
 
 

669. 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?

 
 
 
 

670. Reserve food in Euglena is:

 
 
 
 

671. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

675. Cycas is :

 
 
 
 

676. In Cycas the fertilization is:

 
 
 
 

677. Heterotrichous habit means :

 
 
 
 

678. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

680. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

683. Number of capsomeres forming capsid of TMV is:

 
 
 
 

684. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

686. Funaria is a Bryophyta because :

 
 
 
 

687. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

689. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

691. Water-borne bacterial diseases are:

 
 
 
 

692. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

694. Mycoplasma contains:

 
 
 
 

695. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

698. Cyathia is characterized by:

 
 
 
 

699. The two conjugating gametangia of Rhizopus are:

 
 
 
 

700. Most primitive kind of flower is represented by:

 
 
 
 

701. In Funaria :

 
 
 
 

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

 
 
 
 

703. Ethylene oxide is widely used to:

 
 
 
 

704. Which is not found in bacteria?

 
 
 
 

705. Streptomycin is obtained from:

 
 
 
 

706. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

708. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

710. Pinus is:

 
 
 
 

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

 
 
 
 

712. The leafy fern plant represents the:

 
 
 
 

713. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

715. Fairy ring is the name given to:

 
 
 
 

716. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

718. Most appropriate word for protozoans is:

 
 
 
 

719. Lichen show :

 
 
 
 

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

 
 
 
 

721. The truncated cone of HIV consists of:

 
 
 
 

722. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

724. The leaves of Funaria are :

 
 
 
 

725. Diploxylic vascular bundles are found in:

 
 
 
 

726. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

728. Methanogens belong to:

 
 
 
 

729. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

733. Some diseases caused by bacteria are:

 
 
 
 

734. What is a vector?

 
 
 
 

735. The smallest unit of classification is:

 
 
 
 

736. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

739. Clostridium can:

 
 
 
 

740. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

742. Maximum diversity of life forms occurs in :

 
 
 
 

743. Generic name of mango is:

 
 
 
 

744. The teeth of peristome of Funaria are :

 
 
 
 

745. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

746. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

748. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

750. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

752. In moss, sporophyte is formed on:

 
 
 
 

753. Pteridophytes are also known as :

 
 
 
 

754. Zoogametes are not found in:

 
 
 
 

755. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

758. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

760. The roots of Cycas are :

 
 
 
 

761. Which is absent from the xylem of Cycas?

 
 
 
 

762. Siphonogamy is found in:

 
 
 
 

763. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

765. Late blight of potato is caused by :

 
 
 
 

766. Asexual reproductive body of Volvox is called:

 
 
 
 

767. What is absent in Deuteromycetes?

 
 
 
 

768. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

770. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

772. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

774. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

776. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

778. 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:

 
 
 
 

779. The fungi are usually:

 
 
 
 

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

 
 
 
 

781. Synzoospore is produced in:

 
 
 
 

782. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

784. . Tapetum develops in:

 
 
 
 

785. Viroids have:

 
 
 
 

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

 
 
 
 

787. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

789. Who discovered heterothallism in fungi?

 
 
 
 

790. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. Lichens reproduce by :

 
 
 
 

795. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

797. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

798. Which is a fungicide?

 
 
 
 

799. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

802. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

805. In moss, reduction division occurs in :

 
 
 
 

806. Aflatoxin is produced by:

 
 
 
 

807. Chemosynthetic bacteria are:

 
 
 
 

808. To which country Antony van Leeuwenhoek belong?

 
 
 
 

809. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

811. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

814. Sexual reproduction of lichen is due to :

 
 
 
 

815. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

817. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

819. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

821. Which of the following are included in Tracheophyta?

 
 
 
 

822. The tallest moss in the world is :

 
 
 
 

823. Longest known virus is:

 
 
 
 

824. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

827. Bivalved siliceous shell or frustule occur in:

 
 
 
 

828. Metulae are found in:

 
 
 
 

829. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

831. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

832. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

836. All protozoans possess:

 
 
 
 

837. Interferon is a:

 
 
 
 

838. Sporophyte of Funaria is :

 
 
 
 

839. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

842. Bacteria were first discovered by:

 
 
 
 

843. Simple polyembryony is found in :

 
 
 
 

844. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

846. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

848. Fern plants are:

 
 
 
 

849. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

851. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

852. Heterosporous pteridophytes always form:

 
 
 
 

853. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

857. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

859. Absorptive nutrition is:

 
 
 
 

860. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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