Quiz_Random

1. The chromosomal number in:

 
 
 
 

2. The antherozoids of Funaria are :

 
 
 
 

3. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Red rot of sugarcane is caused by:

 
 
 
 

7. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

9. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

11. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

13. Spermatophyta are characterized by producing:

 
 
 
 

14. The smallest unit of classification is:

 
 
 
 

15. All protozoans possess:

 
 
 
 

16. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

18. Which organisms are the oldest life forms?

 
 
 
 

19. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Reserve food in Euglena is:

 
 
 
 

23. Spirogyra differs from moss protonema in having :

 
 
 
 

24. Fruiting body of lichens is :

 
 
 
 

25. Lichens are pioneers of vegetation in a :

 
 
 
 

26. The word “sea weeds” is used for:

 
 
 
 

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

 
 
 
 

28. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

30. The archegonia of Selaginella are differentiated by:

 
 
 
 

31. Etiology includes the study of :

 
 
 
 

32. 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:

 
 
 
 

33. Embryo formation is not known in :

 
 
 
 

34. Fruits are not found in Cycas because:

 
 
 
 

35. Most of the lichens are composed of :

 
 
 
 

36. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

38. Water-net is the name of:

 
 
 
 

39. Botulism is a:

 
 
 
 

40. A gill of Agaricus:

 
 
 
 

41. Gram stain is used to:

 
 
 
 

42. Special feature of pollen grains of Pinus is :

 
 
 
 

43. Ergot of rye is caused by:

 
 
 
 

44. An alga which is rich in proteins:

 
 
 
 

45. Fern plants are:

 
 
 
 

46. Pythium debaryanum is the causative agent of:

 
 
 
 

47. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

49. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

51. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

53. Who discovered heterothallism in fungi?

 
 
 
 

54. The upper region of moss capsule is :

 
 
 
 

55. The order generally ends with:

 
 
 
 

56. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Circular DNA is seen in:

 
 
 
 

64. In Gymnosperms endosperm is a:

 
 
 
 

65. Smallpox is caused by:

 
 
 
 

66. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

67. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

71. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. The plants of Funaria grow :

 
 
 
 

75. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

77. Climbers are found in genus:

 
 
 
 

78. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

79. Which of the following is sago palm?

 
 
 
 

80. Embryophyta includes:

 
 
 
 

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

 
 
 
 

82. Which causes red tide?

 
 
 
 

83. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. Who named prion?

 
 
 
 

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

 
 
 
 

88. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

90. Pollination drop is:

 
 
 
 

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

 
 
 
 

92. Which of the following are included in Tracheophyta?

 
 
 
 

93. Bivalved siliceous shell or frustule occur in:

 
 
 
 

94. Which is not found in bacteria?

 
 
 
 

95. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. The source of litmus is :

 
 
 
 

99. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

102. Select the wrong statement:

 
 
 
 

103. Sleeping sickness disease in man is caused by:

 
 
 
 

104. The leaves of Funaria are :

 
 
 
 

105. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

107. LSD is:

 
 
 
 

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

 
 
 
 

109. The Rhizopus gametes are formed in:

 
 
 
 

110. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

112. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. Fruits are not found in :

 
 
 
 

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

 
 
 
 

124. Germ theory of disease was proposed by:

 
 
 
 

125. Mycoplasma is different from bacteria due to:

 
 
 
 

126. The microsporophylls on the cone of Cycas are :

 
 
 
 

127. Rhizoids of Riccia are :

 
 
 
 

128. The development of Selaginella embryo is:

 
 
 
 

129. The gametophyte of fern is as:

 
 
 
 

130. Which of the following is a monocot?

 
 
 
 

131. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

133. Fruits are not found in:

 
 
 
 

134. The genetic material of poxvirus is:

 
 
 
 

135. Maximum diversity of life forms occurs in :

 
 
 
 

136. Bacteriophages have been used as:

 
 
 
 

137. Which among the following is a shrub?

 
 
 
 

138. How is moss different from fern?

 
 
 
 

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

 
 
 
 

140. Who discovered cyanophages?

 
 
 
 

141. Facultative parasite is:

 
 
 
 

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

 
 
 
 

143. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

145. Lichens form the first community in

 
 
 
 

146. Metulae are found in:

 
 
 
 

147. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

149. In a diplontic life cycle:

 
 
 
 

150. Yeast belongs to class:

 
 
 
 

151. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

153. 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:

 
 
 
 

154. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

156. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

160. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

163. Nannandria are:

 
 
 
 

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

 
 
 
 

165. An Hfr bacterium is one that contains:

 
 
 
 

166. Synzoospore is produced in:

 
 
 
 

167. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

170. The sporophyte of Riccia is represented by :

 
 
 
 

171. In Gymnocarpeae the fruiting body is :

 
 
 
 

172. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

176. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

178. The coralloid roots are :

 
 
 
 

179. The lambda phase is a:

 
 
 
 

180. What is streptomycin?

 
 
 
 

181. The most important property of yeast is:

 
 
 
 

182. Cyanophage is a virus that attacks:

 
 
 
 

183. Parmelia belongs to :

 
 
 
 

184. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

187. In moss, sporogenous tissue arises from:

 
 
 
 

188. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

194. Citrus canker is caused by:

 
 
 
 

195. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

197. The male gametes of Pinus are :

 
 
 
 

198. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

199. Selaginella differs from Moss in having:

 
 
 
 

200. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

202. The sexual reproductive organs in Rhizopus are:

 
 
 
 

203. Fern prothallus is:

 
 
 
 

204. The zoospores of Ulothrix are :

 
 
 
 

205. What is the role of nitrifying bacteria?

 
 
 
 

206. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

209. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. Azolla and Salvinia both are:

 
 
 
 

214. Heterocysts are found in :

 
 
 
 

215. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

219. Which of the following is a parasitic algae?

 
 
 
 

220. Fairy ring is the name given to:

 
 
 
 

221. Spermatophyta are characterized by producing:

 
 
 
 

222. Leaf spot of groundnut is caused by :

 
 
 
 

223. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

225. Most common type of conjugation in Spirogyra is :

 
 
 
 

226. Helotism word is used for the symbiosis between :

 
 
 
 

227. Bryophyta have been placed in cryptogams because:

 
 
 
 

228. Which is a gametophytic tissue?

 
 
 
 

229. Funaria is :

 
 
 
 

230. Diphtheria is caused by:

 
 
 
 

231. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

233. Select the wrong statement:

 
 
 
 

234. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

235. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

238. Most primitive group of vascular plants are:

 
 
 
 

239. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

241. In dinoflagellates, the two flagella are:

 
 
 
 

242. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

246. In Cycas which structure is equivalent to stamen?

 
 
 
 

247. Which of the following applies to Selaginella?

 
 
 
 

248. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

250. The vascular bundles of Cycas stem are :

 
 
 
 

251. Lichen show :

 
 
 
 

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

 
 
 
 

253. Zoogametes are not found in:

 
 
 
 

254. Winged seeds are found in :

 
 
 
 

255. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

260. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. Ginkgo biloba is a:

 
 
 
 

264. Penicillin was discovered by:

 
 
 
 

265. Amoeba is a member of the phylum:

 
 
 
 

266. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

268. Which is a tautonym?

 
 
 
 

269. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

271. Pneumonia is caused by:

 
 
 
 

272. Aflatoxin is produced by:

 
 
 
 

273. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

275. Which have the largest antherozoid?

 
 
 
 

276. Which of the following are included in Tracheophyta?

 
 
 
 

277. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

280. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. Liverworts are included in :

 
 
 
 

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

 
 
 
 

285. Tautonyms are illegitimate in:

 
 
 
 

286. Some bacteria cannot be killed easily because of:

 
 
 
 

287. One of the distinctive feature of Spirogyra is :

 
 
 
 

288. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

291. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

296. Choose the correct statement about Spirogyra:

 
 
 
 

297. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

299. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

301. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

307. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

309. Saccharomyces is well known for:

 
 
 
 

310. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

317. The DNA of E coli is:

 
 
 
 

318. Fern prothallus produces:

 
 
 
 

319. Which class of Protozoa includes all parasitic forms?

 
 
 
 

320. Longest known virus is:

 
 
 
 

321. Which is not true for Escherichia coli?

 
 
 
 

322. The sporophyte of Riccia is :

 
 
 
 

323. Where does meiosis occur in yeast?

 
 
 
 

324. Cellular slime mold is:

 
 
 
 

325. Saccharomyces ludwigii ascus produces:

 
 
 
 

326. Ulothrix produces :

 
 
 
 

327. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

329. Bryophyta have a special character from other plants:

 
 
 
 

330. The sori in Dryopteris are found on:

 
 
 
 

331. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

333. Sporophyte of Funaria is :

 
 
 
 

334. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

336. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. Smut of maize is caused by :

 
 
 
 

344. The gametophyte produced by apospory is :

 
 
 
 

345. Black rust of wheat is caused by:

 
 
 
 

346. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

348. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

351. Protozoans are considered animals because these are:

 
 
 
 

352. The leafy fern plant represents the:

 
 
 
 

353. Funaria can be differentiated from Cycas :

 
 
 
 

354. Reproduction in Cycas takes place by :

 
 
 
 

355. Disease resistant plant varieties can be produced by :

 
 
 
 

356. Nitrogen-fixing bacteria may be located:

 
 
 
 

357. In angiosperms double fertilization represents:

 
 
 
 

358. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

359. Embryophyta includes :

 
 
 
 

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

 
 
 
 

361. 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:

 
 
 
 

362. What is absent in Deuteromycetes?

 
 
 
 

363. In Cycas:

 
 
 
 

364. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

366. The tree fern is:

 
 
 
 

367. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

370. The ascus of yeast contains:

 
 
 
 

371. Ovules are not found enclosed in ovary in :

 
 
 
 

372. Black rust of wheat is caused by:

 
 
 
 

373. Red rot of sugarcane is caused by :

 
 
 
 

374. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

376. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

378. In Pteris, the archegonia are present:

 
 
 
 

379. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

381. Centric discoid form of diatom is:

 
 
 
 

382. Anoxygenic photosynthesis occurs in:

 
 
 
 

383. Which is the nuclear material in bacteria?

 
 
 
 

384. Pinus is:

 
 
 
 

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

 
 
 
 

386. Mycoplasmas are not viruses in nature because:

 
 
 
 

387. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

392. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

398. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

400. Which of the following is a heterosporous pteridophyte?

 
 
 
 

401. Desired type of Cycas can be grown by:

 
 
 
 

402. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

404. Cryptogams include :

 
 
 
 

405. 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?

 
 
 
 

406. The central part of Funaria axis is :

 
 
 
 

407. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

409. Vascular cryptogams is the term used for:

 
 
 
 

410. Which of the following are absent in Mycoplasma?

 
 
 
 

411. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414. In moss, reduction division occurs in :

 
 
 
 

415. The first to isolate a plant virus was:

 
 
 
 

416. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

418. Ergot is obtained from :

 
 
 
 

419. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

421. Siphonogamy is found in:

 
 
 
 

422. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

424. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

426. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

428. Which of the following have algal zone?

 
 
 
 

429. In a bacteriophage, DNA is present in:

 
 
 
 

430. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. Triple antigen injection or vaccine are for:

 
 
 
 

434. Which one of the following statement is wrong?

 
 
 
 

435. The two conjugating gametangia of Rhizopus are:

 
 
 
 

436. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

438. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

440. Gymnosperms could also be called as:

 
 
 
 

441. The archegonia in Selaginella develop on:

 
 
 
 

442. Bentham and Hooker placed gymnosperms:

 
 
 
 

443. Methanogens belong to:

 
 
 
 

444. 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?

 
 
 
 

445. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

447. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. The megaspore of Selaginella on germination produces:

 
 
 
 

452. Isomorphic type alternation of generation is found in:

 
 
 
 

453. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

455. The leaf of Cycas shows:

 
 
 
 

456. Pasteurized milk is:

 
 
 
 

457. Iodine is obtained from:

 
 
 
 

458. Mostly type of zygospore in Ulothrix is:

 
 
 
 

459. Streptomycin is obtained from:

 
 
 
 

460. Leprosy is caused by:

 
 
 
 

461. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

463. Clostridium can:

 
 
 
 

464. The antibiotic is obtained from:

 
 
 
 

465. Germination of the seed of Pinus is :

 
 
 
 

466. The rhizoids of Funaria are :

 
 
 
 

467. The fungi that grow on wood are called:

 
 
 
 

468. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

471. Which of the following statement is correct?

 
 
 
 

472. In moss, stomata are found:

 
 
 
 

473. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

475. Bacteria are found everywhere, except:

 
 
 
 

476. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

479. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

487. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

491. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

493. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

495. Placenta in fern is:

 
 
 
 

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

 
 
 
 

497. Most primitive embryophytes are placed in:

 
 
 
 

498. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

501. Pteridophytes are also known as :

 
 
 
 

502. Absorptive nutrition is:

 
 
 
 

503. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

509. Ethylene oxide is widely used to:

 
 
 
 

510. Rhizophore of Selaginella is:

 
 
 
 

511. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

513. Some biologists have used the term Mycetozoa for:

 
 
 
 

514. Lichens reproduce by :

 
 
 
 

515. Milk is converted to curd by:

 
 
 
 

516. Small epidermal swellings due to infection are called :

 
 
 
 

517. The seedless plants which possess vascular tissues are:

 
 
 
 

518. Viroids have:

 
 
 
 

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

 
 
 
 

520. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

523. Which is an exception to cell theory?

 
 
 
 

524. What are plasmids?

 
 
 
 

525. The ferns are usually found:

 
 
 
 

526. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

529. The similarity between cyanobacteria and bacteria:

 
 
 
 

530. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

532. 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?

 
 
 
 

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

 
 
 
 

534. Psilotum is:

 
 
 
 

535. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

539. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

544. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

548. Spirogyra represents the :

 
 
 
 

549. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

551. The prothallus of fern is:

 
 
 
 

552. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

555. 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:

 
 
 
 

556.

557. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

560. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

566. The largest alga is:

 
 
 
 

567. What is mycorrhiza?

 
 
 
 

568. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

570. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

572. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

575. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

577. Mycoplasma are:

 
 
 
 

578. Pinus microsporophyll bears:

 
 
 
 

579. Which is absent from the xylem of Cycas?

 
 
 
 

580. Lichens reproduce by :

 
 
 
 

581. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

583. Proembryo in Pinus is :

 
 
 
 

584. The group algae possesses representatives belonging to kingdom:

 
 
 
 

585. Club moss is the common name of :

 
 
 
 

586. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

588. Pollination in Pinus is :

 
 
 
 

589. Iodine is obtained from :

 
 
 
 

590. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. Total parasites belong to:

 
 
 
 

595. Generic name of mango is:

 
 
 
 

596. Ovary is absent in :

 
 
 
 

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

 
 
 
 

598. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

600. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

602. Enteric bacteria are those bacteria that live:

 
 
 
 

603. Penicillin is obtained from:

 
 
 
 

604. Interferon is a:

 
 
 
 

605. 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:

 
 
 
 

606. Ovary is absent in:

 
 
 
 

607. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

608. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

610. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

622. Kuru, a human disease is caused by:

 
 
 
 

623. Viruses are considered to be:

 
 
 
 

624. Black rust of wheat is caused by:

 
 
 
 

625. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

628. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

630. Green plants are classified as :

 
 
 
 

631. The zygospore in Rhizopus on germination forms:

 
 
 
 

632. Lichens are the indicator of pollution :

 
 
 
 

633. The tallest moss in the world is :

 
 
 
 

634. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

637. Chemosynthetic bacteria are:

 
 
 
 

638. 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:

 
 
 
 

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

 
 
 
 

640. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

645. Funaria are commonly found :

 
 
 
 

646. Majority of lichens are :

 
 
 
 

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

 
 
 
 

648. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

650. Citrus canker is caused by :

 
 
 
 

651. The roots of Cycas are :

 
 
 
 

652. Meristele of fern is:

 
 
 
 

653. Which condition is found in Cycas?

 
 
 
 

654. The lichens growing on rocks are called :

 
 
 
 

655. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

657. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

662. Wine turns sour because of:

 
 
 
 

663. In Herpes virus DNA is:

 
 
 
 

664. Bacteria differ from viruses in being sensitive to:

 
 
 
 

665. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

667. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

669. Yeast is a source of:

 
 
 
 

670.

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

 
 
 
 

672. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

674. Ectocarpus produces:

 
 
 
 

675. Simple polyembryony is found in :

 
 
 
 

676. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

678. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

681. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

683. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

687. In moss, conducting tissue is made up of

 
 
 
 

688. The chief characteristic of class Ascomycetes is:

 
 
 
 

689. The disease apple scab is caused by:

 
 
 
 

690.

691. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

693. In moss, sporophyte is formed on:

 
 
 
 

694. The phloem of vascular system of Cycas is :

 
 
 
 

695. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

699. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

701. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

703. In tracheophyta:

 
 
 
 

704. Who among the following discovered virus?

 
 
 
 

705. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

707. How a fern differs from a moss?

 
 
 
 

708. Photosynthetic protists belong to:

 
 
 
 

709. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

713. Male gametophyte of Selaginella is found:

 
 
 
 

714. Select the correct statement: (NEET 2016)

 
 
 
 

715. Why is Cycas called a living fossil?

 
 
 
 

716. Mycoplasma was discovered by:

 
 
 
 

717.

 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

721. Mucilaginous canals in Cycas are found in :

 
 
 
 

722. The sporangia of Selaginella are attached:

 
 
 
 

723. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. Lichens are ecologically important because :

 
 
 
 

727. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

732. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

736. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

740. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

743. Heterospory and ligulate leaves are a feature of:

 
 
 
 

744. Which statement is wrong in regard to bacteria?

 
 
 
 

745. Ovules are not found enclosed in ovary of:

 
 
 
 

746. Funaria is :

 
 
 
 

747. In Funaria :

 
 
 
 

748. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

750. Male gametes in Dryopteris are:

 
 
 
 

751. The teeth of peristome of Funaria are :

 
 
 
 

752. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. . Tapetum develops in:

 
 
 
 

758. Usually, bacteria reproduce by:

 
 
 
 

759. Most primitive embryophytes are placed in :

 
 
 
 

760. Multicellular and jacketed sex organs are found in :

 
 
 
 

761. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

763. Antibiotics cure the disease by:

 
 
 
 

764. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. The fungi are usually:

 
 
 
 

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

 
 
 
 

771. Which is a redwood tree?

 
 
 
 

772. Seeds are characteristically found in :

 
 
 
 

773. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

775. The fungi are mostly:

 
 
 
 

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

 
 
 
 

777. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

781. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

787. The mode of nutrition of bacteria is usually:

 
 
 
 

788. The chloroplast of Chlamydomonas are:

 
 
 
 

789. Vascular cryptogam is the term used for :

 
 
 
 

790. Most resistant spore in bacteria is:

 
 
 
 

791. Enzymes are absent in:

 
 
 
 

792. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

798. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

800. The photosynthetic protists are:

 
 
 
 

801. TMV was isolated in crystalline form by:

 
 
 
 

802. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

804. The gametophyte of moss has distinct phases :

 
 
 
 

805. Bacteria which are spherical are called:

 
 
 
 

806. In Funaria, calyptra is derived from :

 
 
 
 

807. Which part of Riccia bears nurse cells?

 
 
 
 

808. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

810. Which of the following does not contain chlorophyll?

 
 
 
 

811. In Cycas the fertilization is:

 
 
 
 

812. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

818. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

821. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

823. Cycas is:

 
 
 
 

824. The fungi used as food are:

 
 
 
 

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

 
 
 
 

826. Which of the following lichens is harmful?

 
 
 
 

827. Linnaeus is credited with introducing:

 
 
 
 

828. The spermatozoids of Cycas are :

 
 
 
 

829. What is a vector?

 
 
 
 

830. Bacteria were first discovered by:

 
 
 
 

831. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

835. Which is an edible fungus?

 
 
 
 

836. Water bloom is generally caused by :

 
 
 
 

837. Genetic material of TMV is:

 
 
 
 

838. Roots are absent in :

 
 
 
 

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

 
 
 
 

840. Virion refers to:

 
 
 
 

841. Cycas is similar to a mustard plant :

 
 
 
 

842. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

844. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

846. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

852. The most primitive vascular plants is:

 
 
 
 

853. Rhizopus belongs to:

 
 
 
 

854. Fern phloem lacks:

 
 
 
 

855. Late blight of potato is caused by :

 
 
 
 

856. Which of the following is true for Selaginella?

 
 
 
 

857. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

859. Virus and bacteriophage are made-up of:

 
 
 
 

860. Discovery of penicillin was based on:

 
 
 
 

861. Green plants are classified as:

 
 
 
 

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

 
 
 
 

863. Which group of algae have an incipient nucleus?

 
 
 
 

864. To which class Riccia belongs :