Quiz_Random

1. The disease symptom necrosis refers to :

 
 
 
 

2. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

4. The stele of Dryopteris is a:

 
 
 
 

5. The largest alga is:

 
 
 
 

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

 
 
 
 

7. The order generally ends with:

 
 
 
 

8. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

9. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Pollination drop is:

 
 
 
 

13. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

18. Disease resistant plant varieties can be produced by :

 
 
 
 

19. Pinus is:

 
 
 
 

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

 
 
 
 

21. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

27. 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:

 
 
 
 

28. Azolla and Salvinia both are:

 
 
 
 

29. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Ovules are not found enclosed in ovary in :

 
 
 
 

35. The DNA of E coli is:

 
 
 
 

36. Most appropriate word for protozoans is:

 
 
 
 

37. The flagella of Chlamydomonas are:

 
 
 
 

38. Milk is converted to curd by:

 
 
 
 

39. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

41. Chief constituents of bordeaux mixture are :

 
 
 
 

42. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

43. In Gymnosperms endosperm is a:

 
 
 
 

44. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

49. Fruits are not found in:

 
 
 
 

50. How is moss different from fern?

 
 
 
 

51. The sporophyte of Riccia is :

 
 
 
 

52.

53. Protists which are diploid reproduce sexually by:

 
 
 
 

54. Select the wrong statement:

 
 
 
 

55. Which is a tautonym?

 
 
 
 

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

 
 
 
 

57. Which causes red tide?

 
 
 
 

58. The antherozoids of Funaria are :

 
 
 
 

59. Which of the following are included in Tracheophyta?

 
 
 
 

60. Embryophyta includes:

 
 
 
 

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

 
 
 
 

62. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

64. Synzoospore is produced in:

 
 
 
 

65. Oswald Tippo’s classification is:

 
 
 
 

66. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

68. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

70. Which lichen is called Reindeer moss?

 
 
 
 

71. Nannandria are:

 
 
 
 

72. The roots of Cycas are :

 
 
 
 

73. Oswald Tippo’s classification was based on :

 
 
 
 

74. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

76. The word “sea weeds” is used for:

 
 
 
 

77. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. Vascular tissue is found in :

 
 
 
 

81. Cap cells are found in the filament of:

 
 
 
 

82. Bentham and Hooker placed gymnosperms:

 
 
 
 

83. Which of the following is a heterosporous pteridophyte?

 
 
 
 

84. . Tapetum develops in:

 
 
 
 

85. Ergot is obtained from :

 
 
 
 

86. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. In Funaria, calyptra is derived from :

 
 
 
 

90. Fertility of the soil is increased by:

 
 
 
 

91. Broad spectrum antibiotic is, which:

 
 
 
 

92. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

94. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

96. Most of the lichens are composed of :

 
 
 
 

97. An Hfr bacterium is one that contains:

 
 
 
 

98. Viruses are considered to be:

 
 
 
 

99. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

102. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

109. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

114. Most of the algae are :

 
 
 
 

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

 
 
 
 

116. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

118. Bacteria are found everywhere, except:

 
 
 
 

119. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

121. Yeast is a source of:

 
 
 
 

122. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

126. LSD is:

 
 
 
 

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

 
 
 
 

128. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

129. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. Clostridium can:

 
 
 
 

134. Most resistant spore in bacteria is:

 
 
 
 

135. The leaves of Funaria are :

 
 
 
 

136. Which of the following are absent in Mycoplasma?

 
 
 
 

137. Transfusion tissue is present in the leaflet of:

 
 
 
 

138. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

142. Enteric bacteria are those bacteria that live:

 
 
 
 

143. The two conjugating gametangia of Rhizopus are:

 
 
 
 

144. Seeds are characteristically found in:

 
 
 
 

145. In a diplontic life cycle:

 
 
 
 

146. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

150. The most important property of yeast is:

 
 
 
 

151. Agar-agar is obtained from:

 
 
 
 

152. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

158. Viroids have:

 
 
 
 

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

 
 
 
 

160. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

162. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

163. Absorptive nutrition is:

 
 
 
 

164. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

167. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

169. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

171. Parthenium hysterophorus is a native of South America but it grows luxuriantly in most of the area of India. In India, it is considered as:

 
 
 
 

172. Fern prothallus produces:

 
 
 
 

173. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

175. Methanogens belong to:

 
 
 
 

176. The smallest unit of classification is:

 
 
 
 

177. Lichens are indicators of :

 
 
 
 

178. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

179. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

181. Streptomycin is obtained from:

 
 
 
 

182. 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:

 
 
 
 

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

 
 
 
 

184. Photosynthetic protists belong to:

 
 
 
 

185. Why is Cycas called a living fossil?

 
 
 
 

186. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

188. The role of meiosis is for:

 
 
 
 

189. Endemic plants are characterised by their:

 
 
 
 

190. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

192. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

195. Which is not found in bacteria?

 
 
 
 

196. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

201. Gametophyte is the main plant body in :

 
 
 
 

202. Which is an edible fungus?

 
 
 
 

203. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

205. The fungi are usually:

 
 
 
 

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

 
 
 
 

207. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

209. Ovary is absent in:

 
 
 
 

210. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

212. Which part of Riccia bears nurse cells?

 
 
 
 

213. Metulae are found in:

 
 
 
 

214. Bryophyta have a special character from other plants:

 
 
 
 

215. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

218. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

221. Pinus gerardiana is :

 
 
 
 

222. Linnaeus is credited with introducing:

 
 
 
 

223. Lichen show :

 
 
 
 

224. Parmelia belongs to :

 
 
 
 

225. Multicellular and jacketed sex organs are found in :

 
 
 
 

226. In Cycas which structure is equivalent to stamen?

 
 
 
 

227. In Cycas microsporangia are borne on:

 
 
 
 

228. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

231. Genetic material of TMV is:

 
 
 
 

232. Bacteria are considered to be plants because they:

 
 
 
 

233. How a fern differs from a moss?

 
 
 
 

234. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

236. Lichens show :

 
 
 
 

237. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

239. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

241. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

242. Botulism is a:

 
 
 
 

243. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

245. Cycas is:

 
 
 
 

246. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

248. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

250. Gram stain is used to:

 
 
 
 

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

 
 
 
 

252. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

254. Mycoplasma are:

 
 
 
 

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

 
 
 
 

256. Lichens form the first community in

 
 
 
 

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

 
 
 
 

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

 
 
 
 

259. Diphtheria is caused by:

 
 
 
 

260. Rhizophore of Selaginella is:

 
 
 
 

261. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

266. Standard size of a herbarium sheet is:

 
 
 
 

267. The sporangia of Selaginella are attached:

 
 
 
 

268. E coli is a:

 
 
 
 

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

 
 
 
 

270. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

274. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

278. In Pteris, the archegonia are present:

 
 
 
 

279. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

281. The upper region of moss capsule is :

 
 
 
 

282. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

283. Gymnosperms could also be called as:

 
 
 
 

284. In Gymnocarpeae the fruiting body is :

 
 
 
 

285. Select the wrong statement:

 
 
 
 

286. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

288. Facultative saprophyte is:

 
 
 
 

289. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

290. The chloroplast of Chlamydomonas are:

 
 
 
 

291. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

296. What are plasmids?

 
 
 
 

297. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

299. Which among the following is a shrub?

 
 
 
 

300. Quarantine regulations are concerned with:

 
 
 
 

301. Rice, pea, potato are :

 
 
 
 

302. Sporophyte of fern is:

 
 
 
 

303. In moss, reduction division occurs in :

 
 
 
 

304. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

308. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

312. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

316. The megaspore of Selaginella on germination produces:

 
 
 
 

317. Which is not true for Escherichia coli?

 
 
 
 

318. Who named prion?

 
 
 
 

319. Viruses have:

 
 
 
 

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

 
 
 
 

321. The lichens growing on rocks are called :

 
 
 
 

322. Asexual reproductive body of Volvox is called:

 
 
 
 

323. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

325. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

327. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

331. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

334. Bacteria are placed under:

 
 
 
 

335. Select the correct statement: (NEET 2016)

 
 
 
 

336. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

338. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

342. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

344. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

346. The lambda phase is a:

 
 
 
 

347. Mycoplasma was discovered by:

 
 
 
 

348. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

350. The leafy fern plant represents the:

 
 
 
 

351. Which of the following is true for viruses?

 
 
 
 

352.

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

 
 
 
 

354. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

356. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

359. The most primitive vascular plants is:

 
 
 
 

360. Ginkgo biloba is a:

 
 
 
 

361. The first to isolate a plant virus was:

 
 
 
 

362. Bacteria which are spherical are called:

 
 
 
 

363. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

365. Climbers are found in genus:

 
 
 
 

366. Most primitive group of vascular plants are:

 
 
 
 

367. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

369. Pteridophyta are also called:

 
 
 
 

370. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

373. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

375. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380. To which class Riccia belongs :

 
 
 
 

381. The fern plant is:

 
 
 
 

382. Lichens reproduce by :

 
 
 
 

383. The smallest bacterium is:

 
 
 
 

384. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

386. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

388. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

390. 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:

 
 
 
 

391. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

394. Which is a redwood tree?

 
 
 
 

395. Little leaf disease of Brinjal is caused by:

 
 
 
 

396. Psilotum is:

 
 
 
 

397. Red rot of sugarcane is caused by :

 
 
 
 

398. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

401. The sexual reproductive organs in Rhizopus are:

 
 
 
 

402. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

406. In Cycas:

 
 
 
 

407. The fungi that grow on wood are called:

 
 
 
 

408. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

411. Circular DNA is seen in:

 
 
 
 

412. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

415. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

417. Pollination in Cycas takes place by :

 
 
 
 

418. Aflatoxin is produced as a product in :

 
 
 
 

419. Bacteriophages have been used as:

 
 
 
 

420. Spermatophyta are characterized by producing:

 
 
 
 

421. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Ergot of rye is caused by:

 
 
 
 

425.

 

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

 
 
 
 

427. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. The seedless plants which possess vascular tissues are:

 
 
 
 

432. Photoautotrophic bacteria have:

 
 
 
 

433. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

435. Ovary is absent in :

 
 
 
 

436. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

438. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

441. Cyathia is characterized by:

 
 
 
 

442. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

445. The gametophyte of moss has distinct phases :

 
 
 
 

446. What is a vector?

 
 
 
 

447. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

449. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

453. Which one of the following statement is wrong?

 
 
 
 

454. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

456. To which country Antony van Leeuwenhoek belong?

 
 
 
 

457. Typhoid in man is caused by:

 
 
 
 

458. Fern prothallus is:

 
 
 
 

459. Which of the following is a monocot?

 
 
 
 

460.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

464. Green plants are classified as :

 
 
 
 

465. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

467. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

469. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

471. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478. The mode of nutrition of bacteria is usually:

 
 
 
 

479. Which group of algae have an incipient nucleus?

 
 
 
 

480. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

482. Facultative parasite is:

 
 
 
 

483. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

485. Seeds are characteristically found in :

 
 
 
 

486. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

488. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

491. Virion refers to:

 
 
 
 

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

 
 
 
 

493. Protozoans are considered animals because these are:

 
 
 
 

494. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

496. Placenta in fern is:

 
 
 
 

497. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

500. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

502. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

504. Reserve food in Euglena is:

 
 
 
 

505. The development of Selaginella embryo is:

 
 
 
 

506. All algae have:

 
 
 
 

507. Selaginella differs from Moss in having:

 
 
 
 

508. Funaria can be differentiated from Cycas :

 
 
 
 

509. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

511. The fungi are mostly:

 
 
 
 

512. Each chloroplast in Spirogyra bears :

 
 
 
 

513. Saccharomyces is used in:

 
 
 
 

514. The central part of Funaria axis is :

 
 
 
 

515. Yeast belongs to class:

 
 
 
 

516. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

518. Diploxylic vascular bundles are found in:

 
 
 
 

519. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

523. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

525. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. Roots are absent in :

 
 
 
 

533. Green plants are classified as:

 
 
 
 

534. Funaria is :

 
 
 
 

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

 
 
 
 

536. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

540. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

542. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

545. In moss, calyptra is formed from:

 
 
 
 

546. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

548. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

550. Which is absent from the xylem of Cycas?

 
 
 
 

551. Citrus canker is caused by :

 
 
 
 

552. Water-borne bacterial diseases are:

 
 
 
 

553. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

556. Tautonyms are illegitimate in:

 
 
 
 

557. The sporophyte of Riccia is represented by :

 
 
 
 

558. Which of the following statements is not correct?

 
 
 
 

559. Which of the following have algal zone?

 
 
 
 

560. Fruits are not found in Cycas because:

 
 
 
 

561. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

563. In tracheophyta:

 
 
 
 

564. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

570. The sori in Dryopteris are found on:

 
 
 
 

571. Vascular cryptogam is the term used for :

 
 
 
 

572. Winged pollen grains are found in :

 
 
 
 

573. The Rhizopus is:

 
 
 
 

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

 
 
 
 

575. Which class of Protozoa includes all parasitic forms?

 
 
 
 

576. In angiosperms double fertilization represents:

 
 
 
 

577. Saccharomyces ludwigii ascus produces:

 
 
 
 

578. Proembryo in Pinus is :

 
 
 
 

579. Germ theory of disease was proposed by:

 
 
 
 

580. Maximum diversity of life forms occurs in :

 
 
 
 

581. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

584. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

588. Ulothrix produces :

 
 
 
 

589. Pasteurization of milk involves heating for:

 
 
 
 

590. White rust of crucifers is caused by:

 
 
 
 

591. The source of litmus is :

 
 
 
 

592. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

596. Which of the following have a prokaryotic cell?

 
 
 
 

597. Viruses are commonly transmitted in plants through:

 
 
 
 

598. The sporangiophores in Rhizopus are:

 
 
 
 

599. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

604. The nucleus of bacteria is:

 
 
 
 

605. Isomorphic type alternation of generation is found in:

 
 
 
 

606. Lichens reproduce by :

 
 
 
 

607. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. The coralloid roots are :

 
 
 
 

611. Ovules are not found enclosed in ovary of:

 
 
 
 

612. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

615. Which of the following applies to Selaginella?

 
 
 
 

616. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

617. Most common type of conjugation in Spirogyra is :

 
 
 
 

618. Bivalved siliceous shell or frustule occur in:

 
 
 
 

619. All protozoans possess:

 
 
 
 

620. Iodine is obtained from :

 
 
 
 

621. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

623. Bacteriophage consists of:

 
 
 
 

624. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

626. The fungi used as food are:

 
 
 
 

627. Fruiting body of lichens is :

 
 
 
 

628. Fairy ring is the name given to:

 
 
 
 

629. Cellular slime mold is:

 
 
 
 

630. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

632. Smallpox is caused by:

 
 
 
 

633. Usually, bacteria reproduce by:

 
 
 
 

634. Pasteurized milk is:

 
 
 
 

635. Plasmids are:

 
 
 
 

636. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

638. Discovery of penicillin was based on:

 
 
 
 

639. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

641. Zoogametes are not found in:

 
 
 
 

642. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

644. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

646. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

648. Mycoplasma is different from bacteria due to:

 
 
 
 

649. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

651. Pythium debaryanum is the causative agent of:

 
 
 
 

652. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

654. Which organisms are the oldest life forms?

 
 
 
 

655. The ferns are usually found:

 
 
 
 

656. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

659. Mycoplasma contains:

 
 
 
 

660. Cleavage polyembryony is found in :

 
 
 
 

661. Which of the following is sago palm?

 
 
 
 

662. Black rust of wheat is caused by:

 
 
 
 

663. Heterospory is the production of:

 
 
 
 

664. The leaves of Funaria are :

 
 
 
 

665. The tree fern is:

 
 
 
 

666. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

669. Black rust of wheat is caused by:

 
 
 
 

670. Funaria are commonly found :

 
 
 
 

671. Ethylene oxide is widely used to:

 
 
 
 

672. Liverworts are included in :

 
 
 
 

673. John Hutchinson divided dicots into two divisions:

 
 
 
 

674. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

676. Etiology includes the study of :

 
 
 
 

677. The largest known bacterium is:

 
 
 
 

678. Small epidermal swellings due to infection are called :

 
 
 
 

679. Club moss is the common name of :

 
 
 
 

680. Nitrogen-fixing bacteria may be located:

 
 
 
 

681. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

684. Which is the correct statement about Selaginella?

 
 
 
 

685. Kuru, a human disease is caused by:

 
 
 
 

686. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

688. 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:

 
 
 
 

689. 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?

 
 
 
 

690. Heterocysts are found in :

 
 
 
 

691. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

694. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

700. Special feature of pollen grains of Pinus is :

 
 
 
 

701. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

703. Triple antigen injection or vaccine are for:

 
 
 
 

704. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

707. The alga, Spirogyra are found in :

 
 
 
 

708. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

710. Heterotrichous habit means :

 
 
 
 

711. The gametophyte produced by apospory is :

 
 
 
 

712. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

714. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

717. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

719. Spirogyra differs from moss protonema in having :

 
 
 
 

720. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

727. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

729. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

731. The truncated cone of HIV consists of:

 
 
 
 

732. Protistan algae obtain their food as:

 
 
 
 

733. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

735. The mycelium of Rhizopus is:

 
 
 
 

736. Among the algae kelps are :

 
 
 
 

737. The zoospores of Ulothrix are :

 
 
 
 

738. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

741. Male gametes in Dryopteris are:

 
 
 
 

742. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

744. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

745. Which have the largest antherozoid?

 
 
 
 

746. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

748. 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?

 
 
 
 

749. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

751. The male gametes of Pinus are :

 
 
 
 

752. Fern phloem lacks:

 
 
 
 

753. Saccharomyces is well known for:

 
 
 
 

754. All archaebacteria lack:

 
 
 
 

755. Club moss and Peat moss belong to:

 
 
 
 

756. The term stele was given by:

 
 
 
 

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

 
 
 
 

758. Late blight of potato is caused by:

 
 
 
 

759. Vascular cryptogams is the term used for:

 
 
 
 

760. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

763. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

765. The rhizoids of Funaria are :

 
 
 
 

766. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

772. Which condition is found in Cycas?

 
 
 
 

773. Yeast grows more rapidly in:

 
 
 
 

774. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

776. In dinoflagellates, the two flagella are:

 
 
 
 

777. Cell walls of Gram-positive bacteria contain:

 
 
 
 

778. Antibiotic has been extracted from :

 
 
 
 

779. Ovules are not found enclosed in ovary in :

 
 
 
 

780. Cyanophage is a virus that attacks:

 
 
 
 

781. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. 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:

 
 
 
 

785. Desired type of Cycas can be grown by:

 
 
 
 

786. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

789. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. Lichens are pioneers of vegetation in a :

 
 
 
 

793. 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:

 
 
 
 

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

 
 
 
 

795. Siphonogamy is found in:

 
 
 
 

796. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

798. In binomial system most of the words are:

 
 
 
 

799. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

801. In moss, stomata are found:

 
 
 
 

802. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

806. Downy mildew disease is caused by :

 
 
 
 

807. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

810. Penicillin is obtained from:

 
 
 
 

811. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

813. In Funaria :

 
 
 
 

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

 
 
 
 

815. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

817. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

820. The chief characteristic of class Ascomycetes is:

 
 
 
 

821. Amoeba is a member of the phylum:

 
 
 
 

822. Lichens are ecologically important because :

 
 
 
 

823. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

826. The spermatozoids of Cycas are :

 
 
 
 

827. In moss, sporophyte is formed on:

 
 
 
 

828. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

830. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

831. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

834. Woody climbers are known as :

 
 
 
 

835. Meristele of fern is:

 
 
 
 

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

 
 
 
 

837. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

839. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. In Selaginella, the microsporangia are:

 
 
 
 

844. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

847. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

848. Late blight of potato is caused by :

 
 
 
 

849. Bacteria were first discovered by:

 
 
 
 

850. Aflatoxin is produced by:

 
 
 
 

851. Acellular slime mold is/are:

 
 
 
 

852. Mixed cropping helps :

 
 
 
 

853. Fern plants are:

 
 
 
 

854. What is streptomycin?

 
 
 
 

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

 
 
 
 

856. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

859. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

861. The microsporophylls on the cone of Cycas are :

 
 
 
 

862. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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