Quiz_Random

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

 
 
 
 

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

 
 
 
 

3. 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:

 
 
 
 

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

 
 
 
 

5. Penicillin was discovered by:

 
 
 
 

6. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

8. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

10. Fruits are not found in Cycas because:

 
 
 
 

11. Which of the following lichens is harmful?

 
 
 
 

12. The prothallus of fern is:

 
 
 
 

13. Lichens are the indicator of pollution :

 
 
 
 

14. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. In tracheophyta:

 
 
 
 

21. Multicellular and jacketed sex organs are found in :

 
 
 
 

22. Halophiles are the bacteria that require for growth:

 
 
 
 

23. Plasmids are:

 
 
 
 

24. Bivalved siliceous shell or frustule occur in:

 
 
 
 

25. Desired type of Cycas can be grown by:

 
 
 
 

26. The phloem of vascular system of Cycas is :

 
 
 
 

27. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

28. The mode of nutrition of bacteria is usually:

 
 
 
 

29. Lichens are indicators of :

 
 
 
 

30. Which is a tautonym?

 
 
 
 

31. Which is not true for Escherichia coli?

 
 
 
 

32. The gametophyte of fern is as:

 
 
 
 

33. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

35. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. The group algae possesses representatives belonging to kingdom:

 
 
 
 

45. Metulae are found in:

 
 
 
 

46. Cycas is :

 
 
 
 

47. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

49. Rice, pea, potato are :

 
 
 
 

50. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

52. Cycas plant in appearance resembles :

 
 
 
 

53. Some diseases caused by bacteria are:

 
 
 
 

54. In Cycas which structure is equivalent to stamen?

 
 
 
 

55. What is special feature of fern archegonia?

 
 
 
 

56. The first to isolate a plant virus was:

 
 
 
 

57. Most primitive group of vascular plants are:

 
 
 
 

58. In moss, reduction division occurs in :

 
 
 
 

59. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

60. The antherozoids of Funaria are :

 
 
 
 

61. Fern prothallus is:

 
 
 
 

62. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

64. What is mycorrhiza?

 
 
 
 

65. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

67. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

68. Wine turns sour because of:

 
 
 
 

69. Which of the following are included in Tracheophyta?

 
 
 
 

70. The most primitive vascular plants is:

 
 
 
 

71. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

73. The fungi are usually:

 
 
 
 

74. Most common type of conjugation in Spirogyra is :

 
 
 
 

75. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

77. To which country Antony van Leeuwenhoek belong?

 
 
 
 

78. Cycas revoluta is widely grown as :

 
 
 
 

79. Which is absent from the xylem of Cycas?

 
 
 
 

80. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

82. Some biologists have used the term Mycetozoa for:

 
 
 
 

83. Oswald Tippo’s classification was based on :

 
 
 
 

84. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

86. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. Sporophyte of fern is:

 
 
 
 

90. Which is a fungicide?

 
 
 
 

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

 
 
 
 

92. Number of capsomeres forming capsid of TMV is:

 
 
 
 

93. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

95. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

100. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

102. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

104. Selaginella differs from Moss in having:

 
 
 
 

105. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

108. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

111. Lichens form the first community in

 
 
 
 

112. In dinoflagellates, the two flagella are:

 
 
 
 

113. Bacteria which are spherical are called:

 
 
 
 

114. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

120. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

122. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

123. The orders generally have the uniform endings:

 
 
 
 

124. The lambda phase is a:

 
 
 
 

125. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

127. In moss, peristomial teeth are:

 
 
 
 

128. Redness of red sea is due to :

 
 
 
 

129. Virus and bacteriophage are made-up of:

 
 
 
 

130. Black rust of wheat is caused by:

 
 
 
 

131. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

134. First animal pathogenic virus was discovered by:

 
 
 
 

135. Sexual reproduction of lichen is due to :

 
 
 
 

136. Smut of maize is caused by :

 
 
 
 

137. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

139. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

143. Acetobacter is useful in:

 
 
 
 

144. The chromosomal number in:

 
 
 
 

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

 
 
 
 

146. Fruiting body of lichens is :

 
 
 
 

147. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

151. Circular DNA is seen in:

 
 
 
 

152. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

153. Bryophyta have been placed in cryptogams because:

 
 
 
 

154. Cleavage polyembryony is found in :

 
 
 
 

155. Streptomyces falls under:

 
 
 
 

156. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

164. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

167. Heterotrichous habit means :

 
 
 
 

168. The gametophyte of moss has distinct phases :

 
 
 
 

169. 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:

 
 
 
 

170. TMV was isolated in crystalline form by:

 
 
 
 

171. Placenta in fern is:

 
 
 
 

172. The sori in Dryopteris are found on:

 
 
 
 

173. Zoogametes are not found in:

 
 
 
 

174. The spur of Pinus roxburghii has :

 
 
 
 

175. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

177. The fungi used as food are:

 
 
 
 

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

 
 
 
 

179. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

182. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

185. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

195. Aflatoxin is produced as a product in :

 
 
 
 

196. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

198. Bacteria are found everywhere, except:

 
 
 
 

199. Pollination in Cycas takes place by :

 
 
 
 

200. Which is a redwood tree?

 
 
 
 

201. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

203. Synzoospore is produced in:

 
 
 
 

204. Ovary is absent in:

 
 
 
 

205. Ovules are not found enclosed in ovary of:

 
 
 
 

206. Pteridophyta are also called:

 
 
 
 

207. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

209. Water-net is the name of:

 
 
 
 

210. LSD is:

 
 
 
 

211. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

215. Vascular cryptogam is the term used for :

 
 
 
 

216. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

218. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

221. Ergot of rye is caused by:

 
 
 
 

222. The sexual reproductive organs in Rhizopus are:

 
 
 
 

223. Woody climbers are known as :

 
 
 
 

224. Bacteria are placed under:

 
 
 
 

225. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

228. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

233. Iodine is obtained from:

 
 
 
 

234. Heterocysts are found in :

 
 
 
 

235. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

237. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

238. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

241. The sporangia of Selaginella are attached:

 
 
 
 

242. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

244. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

249. Which is an exception to cell theory?

 
 
 
 

250. The stele of Dryopteris is a:

 
 
 
 

251. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

253. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

257. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

260. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. The photosynthetic protists are:

 
 
 
 

264. In a diplontic life cycle:

 
 
 
 

265. Lichens show :

 
 
 
 

266. Centric discoid form of diatom is:

 
 
 
 

267. Downy mildew disease is caused by :

 
 
 
 

268. Cycas is similar to a mustard plant :

 
 
 
 

269. Broad spectrum antibiotic is, which:

 
 
 
 

270. Transfusion tissue is present in the leaflet of:

 
 
 
 

271. The largest alga is:

 
 
 
 

272. Usually, bacteria reproduce by:

 
 
 
 

273. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

276. In moss, calyptra is formed from:

 
 
 
 

277. 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:

 
 
 
 

278. The alga, Spirogyra are found in :

 
 
 
 

279. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. Nitrifying bacteria play an important role by converting:

 
 
 
 

285. Yeast is a source of:

 
 
 
 

286. Mixed cropping helps :

 
 
 
 

287. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

289. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

292. In Cycas the fertilization is:

 
 
 
 

293. The spermatozoids of Cycas are :

 
 
 
 

294. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

296. Most appropriate word for protozoans is:

 
 
 
 

297. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

299. Helotism word is used for the symbiosis between :

 
 
 
 

300. The leaf of Cycas shows:

 
 
 
 

301. Pinus gerardiana is :

 
 
 
 

302. The leafy fern plant represents the:

 
 
 
 

303. Early blight of potato is caused by:

 
 
 
 

304. Genetic material of TMV is:

 
 
 
 

305. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

306. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

311. Interferon is a:

 
 
 
 

312. Select the wrong statement:

 
 
 
 

313. Enzymes are absent in:

 
 
 
 

314. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

316. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

321. Meiosis in Ulothrix takes place:

 
 
 
 

322. Meristele of fern is:

 
 
 
 

323. Acellular slime mold is/are:

 
 
 
 

324. Chief constituents of bordeaux mixture are :

 
 
 
 

325. Rhizoids of Riccia are :

 
 
 
 

326. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

328. Amoeba is a member of the phylum:

 
 
 
 

329. 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:

 
 
 
 

330. Red rot of sugarcane is caused by:

 
 
 
 

331. Red rot of sugarcane is caused by :

 
 
 
 

332. The sporangium of fern contains nearly:

 
 
 
 

333. In moss, sporogenous tissue arises from:

 
 
 
 

334. In angiosperms double fertilization represents:

 
 
 
 

335. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

337. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

339. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

341. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

344. Which have the largest antherozoid?

 
 
 
 

345. Fern prothallus produces:

 
 
 
 

346. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

349. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Leprosy is caused by:

 
 
 
 

353. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

354. Bryophyta have a special character from other plants:

 
 
 
 

355. The gametophyte produced by apospory is :

 
 
 
 

356. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

358. E coli is a:

 
 
 
 

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

 
 
 
 

360. The ascus of yeast contains:

 
 
 
 

361. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

363. Who among the following discovered virus?

 
 
 
 

364. The Rhizopus gametes are formed in:

 
 
 
 

365. Mycoplasmas are not viruses in nature because:

 
 
 
 

366. Lichens reproduce by :

 
 
 
 

367. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

369. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

371. The fungi that grow on wood are called:

 
 
 
 

372. Pneumonia is caused by:

 
 
 
 

373. Which of the following is true for Selaginella?

 
 
 
 

374. Which lichen is called Reindeer moss?

 
 
 
 

375. 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?

 
 
 
 

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

 
 
 
 

377. Embryophyta includes:

 
 
 
 

378. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

381. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

382. Maximum diversity of life forms occurs in :

 
 
 
 

383. The Rhizopus is:

 
 
 
 

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

 
 
 
 

385. The prothallus of fern represents the plant:

 
 
 
 

386. Sometimes the bacterial cell is enclosed in:

 
 
 
 

387. The role of meiosis is for:

 
 
 
 

388. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

391. 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:

 
 
 
 

392. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

395. Antibiotic has been extracted from :

 
 
 
 

396. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

399. How is moss different from fern?

 
 
 
 

400. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

402. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

404. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. Which among the following is a shrub?

 
 
 
 

408. To which class Riccia belongs :

 
 
 
 

409. Which statement is wrong in regard to bacteria?

 
 
 
 

410. Who named prion?

 
 
 
 

411. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

416.

417. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

419. The chief characteristic of bryophyta is that :

 
 
 
 

420. NBG of Lucknow is now named as:

 
 
 
 

421. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

423. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

424. Saccharomyces is well known for:

 
 
 
 

425. In Cycas:

 
 
 
 

426. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

427. In Pteris, the roots are:

 
 
 
 

428. Embryophyta includes :

 
 
 
 

429. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

432. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

434. 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?

 
 
 
 

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

 
 
 
 

436. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

438. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

440. All archaebacteria lack:

 
 
 
 

441. Chemosynthetic bacteria are:

 
 
 
 

442. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

444. Roots are absent in :

 
 
 
 

445. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

447. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

449. Facultative parasite is:

 
 
 
 

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

 
 
 
 

451. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

453. What is streptomycin?

 
 
 
 

454. Cap cells are found in the filament of:

 
 
 
 

455. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

458. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

461. What are plasmids?

 
 
 
 

462. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

464. The flagella of Chlamydomonas are:

 
 
 
 

465. Mycoplasma contains:

 
 
 
 

466. Bentham and Hooker placed gymnosperms:

 
 
 
 

467. Most resistant spore in bacteria is:

 
 
 
 

468. In Funaria :

 
 
 
 

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

 
 
 
 

470. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

472. Mucilaginous canals in Cycas are found in :

 
 
 
 

473. Pinus is:

 
 
 
 

474. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478.

 

479. Why is Cycas called a living fossil?

 
 
 
 

480. Clostridium can:

 
 
 
 

481. The teeth of peristome of Funaria are :

 
 
 
 

482. Diploxylic vascular bundles are found in:

 
 
 
 

483. Oswald Tippo’s classification is:

 
 
 
 

484. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

490. The development of Selaginella embryo is:

 
 
 
 

491. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

493. Citrus canker is caused by :

 
 
 
 

494. Funaria is :

 
 
 
 

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

 
 
 
 

496. Select the correct statement: (NEET 2016)

 
 
 
 

497. Which causes red tide?

 
 
 
 

498. The fern plant is:

 
 
 
 

499. Sporophyte of Funaria is :

 
 
 
 

500. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

502. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

505. Seeds are characteristically found in:

 
 
 
 

506. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

508. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

513. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

515. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

517. Which one of the following statement is wrong?

 
 
 
 

518. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

520. The order generally ends with:

 
 
 
 

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

 
 
 
 

522. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

524. Most of the algae are :

 
 
 
 

525. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

530. What is a vector?

 
 
 
 

531. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

533. The DNA of E coli is:

 
 
 
 

534. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

536. Which of the following is a heterosporous pteridophyte?

 
 
 
 

537. Fern plants are:

 
 
 
 

538. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

540. Little leaf disease of Brinjal is caused by:

 
 
 
 

541.

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

 
 
 
 

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

 
 
 
 

544. In Gymnocarpeae the fruiting body is :

 
 
 
 

545. Heterospory is the production of:

 
 
 
 

546. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

552. Majority of lichens are :

 
 
 
 

553. Protistan algae obtain their food as:

 
 
 
 

554. Detailed study of bacteriophage was made by:

 
 
 
 

555. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

559. Select the wrong statement:

 
 
 
 

560. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

561. Methanogens belong to:

 
 
 
 

562. Coenogamete is found in:

 
 
 
 

563. Funaria is a Bryophyta because :

 
 
 
 

564. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. Black rust of wheat is caused by:

 
 
 
 

568. Vascular tissue is found in :

 
 
 
 

569. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

571. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

572. Soil fertility is lost by the activities of:

 
 
 
 

573. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

575. Funaria is :

 
 
 
 

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

 
 
 
 

577. Quarantine regulations are concerned with:

 
 
 
 

578. Spermatophyta are characterized by producing:

 
 
 
 

579. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

583. Infective part of virus was discovered by:

 
 
 
 

584. Total parasites belong to:

 
 
 
 

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

 
 
 
 

586. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

588. Sleeping sickness disease in man is caused by:

 
 
 
 

589. Vegetative reproduction in Cycas is by means of :

 
 
 
 

590. The coralloid roots are :

 
 
 
 

591. Most primitive kind of flower is represented by:

 
 
 
 

592. Rhizopus and yeast are usually:

 
 
 
 

593. Heterospory and ligulate leaves are a feature of:

 
 
 
 

594. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

596. Protozoans are considered animals because these are:

 
 
 
 

597. Some bacteria cannot be killed easily because of:

 
 
 
 

598. What is the role of nitrifying bacteria?

 
 
 
 

599. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

605. In Selaginella, the microsporangia are:

 
 
 
 

606. 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?

 
 
 
 

607. The nucleus of bacteria is:

 
 
 
 

608. Aflatoxin is produced by:

 
 
 
 

609. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

611. In a bacteriophage, DNA is present in:

 
 
 
 

612. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. Virion refers to:

 
 
 
 

620. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

626. Bacteriophage consists of:

 
 
 
 

627. Which of the following is a monocot?

 
 
 
 

628. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

630. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

632. True sexuality is not found in:

 
 
 
 

633. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

635. Viroids have:

 
 
 
 

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

 
 
 
 

637. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

640. Which of the following applies to Selaginella?

 
 
 
 

641. Proembryo in Pinus is :

 
 
 
 

642. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

644. Penicillin is obtained from:

 
 
 
 

645. The chloroplast in Ulothrix is :

 
 
 
 

646. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

648. Mycoplasma are:

 
 
 
 

649. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

651. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

655. Cryptogams include :

 
 
 
 

656. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

661. Typhoid in man is caused by:

 
 
 
 

662. Black rust of wheat is caused by:

 
 
 
 

663. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

666. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

668. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

671. The megaspore of Selaginella on germination produces:

 
 
 
 

672. Which fixes atmospheric nitrogen?

 
 
 
 

673. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

675. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

678. Viruses are considered to be:

 
 
 
 

679. Which is an edible fungus?

 
 
 
 

680. Saccharomyces is used in:

 
 
 
 

681. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

684. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

689. Which one of the following is a monocot?

 
 
 
 

690. Club moss is the common name of :

 
 
 
 

691. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

693. Parmelia belongs to :

 
 
 
 

694. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

696. Botulism is a:

 
 
 
 

697. Common phycobiont in a lichen is :

 
 
 
 

698. John Hutchinson divided dicots into two divisions:

 
 
 
 

699. Etiology includes the study of :

 
 
 
 

700. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

701. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

707. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

709. The plants of Funaria grow :

 
 
 
 

710. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

713. Pasteurization of milk involves heating for:

 
 
 
 

714. Which organisms are the oldest life forms?

 
 
 
 

715. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. The roots of Cycas are :

 
 
 
 

720. Simple polyembryony is found in :

 
 
 
 

721. In Pteris, the archegonia are present:

 
 
 
 

722. How a fern differs from a moss?

 
 
 
 

723. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

725. Yeast grows more rapidly in:

 
 
 
 

726. Among the algae kelps are :

 
 
 
 

727. Fruits are not found in :

 
 
 
 

728. Most primitive embryophytes are placed in :

 
 
 
 

729. Spermatophyta are characterized by producing:

 
 
 
 

730. Mostly type of zygospore in Ulothrix is:

 
 
 
 

731. Funaria are commonly found :

 
 
 
 

732. Facultative saprophyte is:

 
 
 
 

733. Lichens are ecologically important because :

 
 
 
 

734. Germ theory of disease was proposed by:

 
 
 
 

735. Triple antigen injection or vaccine are for:

 
 
 
 

736. Isomorphic type alternation of generation is found in:

 
 
 
 

737. Mycoplasma was discovered by:

 
 
 
 

738. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

740. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

744. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

746. Green plants are classified as:

 
 
 
 

747. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

751. Which condition is found in Cycas?

 
 
 
 

752. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757.

758. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

760. Iodine is obtained from :

 
 
 
 

761. Cycas is:

 
 
 
 

762. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

765. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

768. All protozoans possess:

 
 
 
 

769. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

771. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

774. Milk is converted to curd by:

 
 
 
 

775. Fruits are not found in:

 
 
 
 

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

 
 
 
 

777. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

783. Cocci types of bacteria are:

 
 
 
 

784. Rhizopus belongs to:

 
 
 
 

785. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

788. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

799. The ferns are usually found:

 
 
 
 

800. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

802. Longest known virus is:

 
 
 
 

803. Ovules are not found enclosed in ovary in :

 
 
 
 

804. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

810. Which class of Protozoa includes all parasitic forms?

 
 
 
 

811. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

813. Which of the following have algal zone?

 
 
 
 

814. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

816. Liverworts are included in :

 
 
 
 

817. Reproduction in Cycas takes place by :

 
 
 
 

818. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

819. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

821. Spores of which plants have chloroplast:

 
 
 
 

822. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

824. Which part of Riccia bears nurse cells?

 
 
 
 

825. Psilotum is:

 
 
 
 

826. All algae have:

 
 
 
 

827. The root nodules of leguminous plants contain:

 
 
 
 

828. The leaves of Funaria are :

 
 
 
 

829. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

832. Funaria can be differentiated from Cycas :

 
 
 
 

833. Which of the following are absent in Mycoplasma?

 
 
 
 

834. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

836. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. The fungi are mostly:

 
 
 
 

840. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. Ectocarpus produces:

 
 
 
 

844. In binomial system most of the words are:

 
 
 
 

845. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

847. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

851. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

854. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

855. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

859. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

861. Bacteria differ from viruses in being sensitive to:

 
 
 
 

862. Embryo formation is not known in :

 
 
 
 

863. Each chloroplast in Spirogyra bears :

 
 
 
 

864. Bacteria growing on synthetic medium are called: