Quiz_Random

1. Psilotum is:

 
 
 
 

2. The megaspore of Selaginella on germination produces:

 
 
 
 

3. The nucleus of bacteria is:

 
 
 
 

4. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

6. 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?

 
 
 
 

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

 
 
 
 

8. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

10. The ferns are usually found:

 
 
 
 

11. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

18. The genetic material of poxvirus is:

 
 
 
 

19. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Winged seeds are found in :

 
 
 
 

23. Germination of the seed of Pinus is :

 
 
 
 

24. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

26. In Cycas:

 
 
 
 

27. True sexuality is not found in:

 
 
 
 

28. Each chloroplast in Spirogyra bears :

 
 
 
 

29. Heterocysts are found in :

 
 
 
 

30. The antibiotic is obtained from:

 
 
 
 

31. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

33. Spirogyra represents the :

 
 
 
 

34. Interferon is a:

 
 
 
 

35. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

37. Funaria can be differentiated from Cycas :

 
 
 
 

38. Photoautotrophic bacteria have:

 
 
 
 

39. In moss, sporogenous tissue arises from:

 
 
 
 

40. Antibiotic has been extracted from :

 
 
 
 

41. The source of litmus is :

 
 
 
 

42. The word “sea weeds” is used for:

 
 
 
 

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

 
 
 
 

44. Vascular tissue is found in :

 
 
 
 

45. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

47. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

49. Bacteria growing on synthetic medium are called:

 
 
 
 

50. Which part of Riccia bears nurse cells?

 
 
 
 

51. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

53. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

55. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

57. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Cryptogams include :

 
 
 
 

61. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

62. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

63. The order generally ends with:

 
 
 
 

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

 
 
 
 

65. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

67. Which of the following lichens is harmful?

 
 
 
 

68. 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:

 
 
 
 

69. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

71. Liverworts are included in :

 
 
 
 

72. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. The first to isolate a plant virus was:

 
 
 
 

77. Which is an edible fungus?

 
 
 
 

78. Polystelic condition is found in:

 
 
 
 

79. How is moss different from fern?

 
 
 
 

80. Most resistant spore in bacteria is:

 
 
 
 

81. Which is absent from the xylem of Cycas?

 
 
 
 

82. Asexual reproductive body of Volvox is called:

 
 
 
 

83. Ethylene oxide is widely used to:

 
 
 
 

84. The development of sporangium in Selaginella is:

 
 
 
 

85. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

87. One of the distinctive feature of Spirogyra is :

 
 
 
 

88. Which organisms are the oldest life forms?

 
 
 
 

89. Most primitive embryophytes are placed in :

 
 
 
 

90. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

93. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

95. Funaria is :

 
 
 
 

96. Zoogametes are not found in:

 
 
 
 

97. Black rust of wheat is caused by:

 
 
 
 

98. Bryophyta have been placed in cryptogams because:

 
 
 
 

99. Which is the correct statement about Selaginella?

 
 
 
 

100. The mode of nutrition of bacteria is usually:

 
 
 
 

101. Sleeping sickness disease in man is caused by:

 
 
 
 

102. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

104. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

106. 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:

 
 
 
 

107. 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?

 
 
 
 

108. An Hfr bacterium is one that contains:

 
 
 
 

109. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

111. Leaf spot of groundnut is caused by :

 
 
 
 

112. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

115. Which of the following have algal zone?

 
 
 
 

116. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

124. The prothallus of fern is:

 
 
 
 

125. Spores of which plants have chloroplast:

 
 
 
 

126. Pollination drop is:

 
 
 
 

127. E coli is a:

 
 
 
 

128. Which bacteria convert nitrate into nitrogen?

 
 
 
 

129. Yeast is a source of:

 
 
 
 

130. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. The spermatozoids of Cycas are :

 
 
 
 

134. Embryophyta includes:

 
 
 
 

135. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

137. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

139. The male gametes of Pinus are :

 
 
 
 

140. Spermatophyta are characterized by producing:

 
 
 
 

141. Helotism word is used for the symbiosis between :

 
 
 
 

142. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

145. 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?

 
 
 
 

146. The chromosomal number in:

 
 
 
 

147. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

152. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

154. Cell walls of Gram-positive bacteria contain:

 
 
 
 

155. Lichens show :

 
 
 
 

156. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

157. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

161. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

167. Most primitive embryophytes are placed in:

 
 
 
 

168. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

170. Typhoid in man is caused by:

 
 
 
 

171. Nitrifying bacteria play an important role by converting:

 
 
 
 

172. Photosynthetic protists belong to:

 
 
 
 

173. The alga, Spirogyra are found in :

 
 
 
 

174. The upper region of moss capsule is :

 
 
 
 

175. 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:

 
 
 
 

176. The rhizoids of Funaria are :

 
 
 
 

177. Kuru, a human disease is caused by:

 
 
 
 

178. Centric discoid form of diatom is:

 
 
 
 

179. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. Small epidermal swellings due to infection are called :

 
 
 
 

185. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

187. The spur of Pinus roxburghii has :

 
 
 
 

188. Club moss is the common name of :

 
 
 
 

189. Citrus canker is caused by :

 
 
 
 

190. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

192. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

194.

195. Most of the lichens are composed of :

 
 
 
 

196. Redness of red sea is due to :

 
 
 
 

197. The sporangiophores in Rhizopus are:

 
 
 
 

198. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

206. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

208. The group algae possesses representatives belonging to kingdom:

 
 
 
 

209. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

211. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

213. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

215. Heterosporous pteridophytes always form:

 
 
 
 

216. Meristele of fern is:

 
 
 
 

217. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

222. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. Yeast belongs to class:

 
 
 
 

226. Methanogens belong to:

 
 
 
 

227. Germ theory of disease was proposed by:

 
 
 
 

228. All archaebacteria lack:

 
 
 
 

229. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

232. The middle sterile part of capsule is called:

 
 
 
 

233. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

235. The fern plant is:

 
 
 
 

236. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

238. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

240. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

243. The chloroplast in Ulothrix is :

 
 
 
 

244. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

246.

247. Wine turns sour because of:

 
 
 
 

248. In a diplontic life cycle:

 
 
 
 

249. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

251. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

253. Diploxylic vascular bundles are found in:

 
 
 
 

254. The largest known bacterium is:

 
 
 
 

255. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

258. Which of the following are included in Tracheophyta?

 
 
 
 

259. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

261. Standard size of a herbarium sheet is:

 
 
 
 

262. The root nodules of leguminous plants contain:

 
 
 
 

263. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

265. Most primitive group of vascular plants are:

 
 
 
 

266. In a bacteriophage, DNA is present in:

 
 
 
 

267. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

269. The fungi used as food are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. The plants of Funaria grow :

 
 
 
 

273. Which of the following is a heterosporous pteridophyte?

 
 
 
 

274. Mucilaginous canals in Cycas are found in :

 
 
 
 

275. Pasteurization of milk involves heating for:

 
 
 
 

276. The sexual reproductive organs in Rhizopus are:

 
 
 
 

277. The coralloid roots are :

 
 
 
 

278. Anoxygenic photosynthesis occurs in:

 
 
 
 

279. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

281. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

283. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

285. Facultative parasite is:

 
 
 
 

286. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

289. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

294. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

296. Lichens reproduce by :

 
 
 
 

297. The mycelium of Rhizopus is:

 
 
 
 

298. All algae have:

 
 
 
 

299. What is a vector?

 
 
 
 

300. Which of the following are included in Tracheophyta?

 
 
 
 

301. Cycas is similar to a mustard plant :

 
 
 
 

302. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

305. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

307. Ginkgo biloba is a:

 
 
 
 

308. The DNA of E coli is:

 
 
 
 

309. Mycoplasma are:

 
 
 
 

310. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

312. The similarity between cyanobacteria and bacteria:

 
 
 
 

313. Which is a tautonym?

 
 
 
 

314. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

316. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

318. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

321. Which is an exception to cell theory?

 
 
 
 

322. The largest alga is:

 
 
 
 

323. Who discovered cyanophages?

 
 
 
 

324. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

326. The chief characteristic of bryophyta is that :

 
 
 
 

327. Ovules are not found enclosed in ovary in :

 
 
 
 

328. Leprosy is caused by:

 
 
 
 

329. In Gymnosperms endosperm is a:

 
 
 
 

330. Red rot of sugarcane is caused by :

 
 
 
 

331. Viroids have:

 
 
 
 

332. Cycas is different from mango in :

 
 
 
 

333. Cyanophage is a virus that attacks:

 
 
 
 

334. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

335. Coenogamete is found in:

 
 
 
 

336. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

338. Green plants are classified as :

 
 
 
 

339. Which of the following does not contain chlorophyll?

 
 
 
 

340. Protists which are diploid reproduce sexually by:

 
 
 
 

341. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

343. In moss, conducting tissue is made up of

 
 
 
 

344. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Choose the correct statement about Spirogyra:

 
 
 
 

353. All protozoans possess:

 
 
 
 

354. Why is Cycas called a living fossil?

 
 
 
 

355. The most primitive vascular plants is:

 
 
 
 

356. Streptomyces falls under:

 
 
 
 

357. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

362. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

365. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

367. In Gymnocarpeae the fruiting body is :

 
 
 
 

368. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

370. Infective part of virus was discovered by:

 
 
 
 

371. Chief constituents of bordeaux mixture are :

 
 
 
 

372. Black rust of wheat is caused by:

 
 
 
 

373. Protistan algae obtain their food as:

 
 
 
 

374. Halophiles are the bacteria that require for growth:

 
 
 
 

375. An alga which is rich in proteins:

 
 
 
 

376. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

379. The fungi that grow on wood are called:

 
 
 
 

380. Spirogyra differs from moss protonema in having :

 
 
 
 

381. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

383. The phloem of vascular system of Cycas is :

 
 
 
 

384. Mycoplasmas are not viruses in nature because:

 
 
 
 

385. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

387. Milk is converted to curd by:

 
 
 
 

388. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

391. The vascular bundles of Cycas stem are :

 
 
 
 

392. To which class Riccia belongs :

 
 
 
 

393. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

397. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

399. Pneumonia is caused by:

 
 
 
 

400. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

402. Virion refers to:

 
 
 
 

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

 
 
 
 

404. What are plasmids?

 
 
 
 

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

 
 
 
 

406. Gymnosperms could also be called as:

 
 
 
 

407. Azolla and Salvinia both are:

 
 
 
 

408. Rhizopus belongs to:

 
 
 
 

409. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

411. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414. Transfusion tissue is present in the leaflet of:

 
 
 
 

415. Vascular cryptogams is the term used for:

 
 
 
 

416. In angiosperms double fertilization represents:

 
 
 
 

417. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

419. The flagella of Chlamydomonas are:

 
 
 
 

420. Number of capsomeres forming capsid of TMV is:

 
 
 
 

421. Botulinum toxin effects:

 
 
 
 

422. The sporophyte of Riccia is represented by :

 
 
 
 

423. Roots are absent in :

 
 
 
 

424. Pythium debaryanum is the causative agent of:

 
 
 
 

425. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

427. What is absent in Deuteromycetes?

 
 
 
 

428. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

430. Which of the following statements is not correct?

 
 
 
 

431. Fruits are not found in :

 
 
 
 

432. Oswald Tippo’s classification is:

 
 
 
 

433. The gametophyte of fern is as:

 
 
 
 

434. Total parasites belong to:

 
 
 
 

435. Yeast grows more rapidly in:

 
 
 
 

436. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

439. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

444. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

446. Majority of lichens are :

 
 
 
 

447. Which causes red tide?

 
 
 
 

448. Economic importance of bacteria lies in their being:

 
 
 
 

449. Bacteriophages have been used as:

 
 
 
 

450. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

454. Which have the largest antherozoid?

 
 
 
 

455. Most of the algae are :

 
 
 
 

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

 
 
 
 

457. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

459. Bacteria were first discovered by:

 
 
 
 

460. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

462. Bacteriophage consists of:

 
 
 
 

463. The most important property of yeast is:

 
 
 
 

464. Red rot of sugarcane is caused by :

 
 
 
 

465. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

467. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

469. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

473. Ectocarpus produces:

 
 
 
 

474. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

476. Vegetative reproduction in Cycas is by means of :

 
 
 
 

477. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. The gametophyte produced by apospory is :

 
 
 
 

481. White rust of crucifers is caused by:

 
 
 
 

482. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. Select the wrong statement:

 
 
 
 

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

 
 
 
 

490. Ovary is absent in :

 
 
 
 

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

 
 
 
 

492. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

494. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

496. Embryophyta includes :

 
 
 
 

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

 
 
 
 

498. The stele of Dryopteris is a:

 
 
 
 

499. Ulothrix produces :

 
 
 
 

500. Funaria are commonly found :

 
 
 
 

501. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Proembryo in Pinus is :

 
 
 
 

507. The fungi are usually:

 
 
 
 

508. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

511. Cyathia is characterized by:

 
 
 
 

512. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

514. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

516. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

519. Disease resistant plant varieties can be produced by :

 
 
 
 

520. Indusium in Dryopteris is:

 
 
 
 

521. 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:

 
 
 
 

522. The development of Selaginella embryo is:

 
 
 
 

523. Sporophyte of fern is:

 
 
 
 

524. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

531. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

534. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. Chemosynthetic bacteria are:

 
 
 
 

538. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

541. Linnaeus is credited with introducing:

 
 
 
 

542. Cycas is :

 
 
 
 

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

 
 
 
 

544. The ascus of yeast contains:

 
 
 
 

545. NBG of Lucknow is now named as:

 
 
 
 

546. The role of meiosis is for:

 
 
 
 

547. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

549. Cap cells are found in the filament of:

 
 
 
 

550. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

554. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

556. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

560. Viruses are commonly transmitted in plants through:

 
 
 
 

561. In moss, peristomial teeth are:

 
 
 
 

562. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

564. What is streptomycin?

 
 
 
 

565. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. Bacteria are considered to be plants because they:

 
 
 
 

569. Who named prion?

 
 
 
 

570. Acetobacter is useful in:

 
 
 
 

571. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

573. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

575. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

576. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

579. Viruses are considered to be:

 
 
 
 

580. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

581. The disease apple scab is caused by:

 
 
 
 

582. In Funaria :

 
 
 
 

583. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

587. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

599. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

601. In moss, stomata are found:

 
 
 
 

602. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

605. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

607. Banana bunchy top is caused by :

 
 
 
 

608. Mycoplasma are sensitive to:

 
 
 
 

609. Broad spectrum antibiotic is, which:

 
 
 
 

610. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

612. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

614. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

616. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

617. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

619.

 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

623. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

626. In Cycas the fertilization is:

 
 
 
 

627. Penicillin is obtained from:

 
 
 
 

628. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

630. Enzymes are absent in:

 
 
 
 

631. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. Heterotrichous habit means :

 
 
 
 

635. In tracheophyta:

 
 
 
 

636. Synzoospore is produced in:

 
 
 
 

637. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

641. In dinoflagellates, the two flagella are:

 
 
 
 

642. The zygospore in Rhizopus on germination forms:

 
 
 
 

643. In Pteris, the archegonia are present:

 
 
 
 

644. Bacteria which are spherical are called:

 
 
 
 

645. In Selaginella, the microsporangia are:

 
 
 
 

646. John Hutchinson divided dicots into two divisions:

 
 
 
 

647. Viruses have:

 
 
 
 

648. Cocci types of bacteria are:

 
 
 
 

649. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

653. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

655. Pseudomycelium is found in:

 
 
 
 

656. Which is a gametophytic tissue?

 
 
 
 

657. Which fixes atmospheric nitrogen?

 
 
 
 

658. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

662. Which of the following have a prokaryotic cell?

 
 
 
 

663. Spermatophyta are characterized by producing:

 
 
 
 

664. Which is a fungicide?

 
 
 
 

665. Iodine is obtained from:

 
 
 
 

666. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

668. Pteridophytes are also known as :

 
 
 
 

669. Bacteria differ from viruses in being sensitive to:

 
 
 
 

670. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

673. Lichen show :

 
 
 
 

674. Plasmids are:

 
 
 
 

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

 
 
 
 

676. Nannandria are:

 
 
 
 

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

 
 
 
 

678. Saccharomyces is used in:

 
 
 
 

679. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

685. Fern plants are:

 
 
 
 

686. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

691. Circular DNA is seen in:

 
 
 
 

692. Who discovered heterothallism in fungi?

 
 
 
 

693. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

695. Water-net is the name of:

 
 
 
 

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

 
 
 
 

697. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

700. The lambda phase is a:

 
 
 
 

701. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

704. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

707. In moss, reduction division occurs in :

 
 
 
 

708. Some bacteria cannot be killed easily because of:

 
 
 
 

709. Penicillin was discovered by:

 
 
 
 

710. The tree fern is:

 
 
 
 

711. Cellular slime mold is:

 
 
 
 

712. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

715. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

717. Multicellular and jacketed sex organs are found in :

 
 
 
 

718. Funaria is a Bryophyta because :

 
 
 
 

719. Cycas is:

 
 
 
 

720. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

722. Metulae are found in:

 
 
 
 

723. Lichens form the first community in

 
 
 
 

724. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

727. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

729. Which group of algae have an incipient nucleus?

 
 
 
 

730. Fruiting body of lichens is :

 
 
 
 

731. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

736. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

740. Funaria is :

 
 
 
 

741. LSD is:

 
 
 
 

742. Ovules are not found enclosed in ovary in :

 
 
 
 

743. In moss, calyptra is formed from:

 
 
 
 

744. Antibiotics cure the disease by:

 
 
 
 

745. The archegonia in Selaginella develop on:

 
 
 
 

746. Most common type of conjugation in Spirogyra is :

 
 
 
 

747. Select the wrong statement:

 
 
 
 

748. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

751. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

759. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

761. The smallest bacterium is:

 
 
 
 

762. Which of the following is a monocot?

 
 
 
 

763. Water-borne bacterial diseases are:

 
 
 
 

764. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

767. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

769. Green plants are classified as:

 
 
 
 

770. In Pteris, the roots are:

 
 
 
 

771. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

773. The gametophyte of fern bears:

 
 
 
 

774. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

776. Virus and bacteriophage are made-up of:

 
 
 
 

777. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

779. 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?

 
 
 
 

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

 
 
 
 

781. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

783. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

785. Rhizopus and yeast are usually:

 
 
 
 

786. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

791. Placenta in fern is:

 
 
 
 

792. Genetic material of TMV is:

 
 
 
 

793. Which is a redwood tree?

 
 
 
 

794. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

796. Most primitive kind of flower is represented by:

 
 
 
 

797. The tallest moss in the world is :

 
 
 
 

798. Lichens are the indicator of pollution :

 
 
 
 

799. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. Etiology includes the study of :

 
 
 
 

809. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

811. A gill of Agaricus:

 
 
 
 

812. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. Bacteria are found everywhere, except:

 
 
 
 

816. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

821. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

823. Which is the nuclear material in bacteria?

 
 
 
 

824. Acellular slime mold is/are:

 
 
 
 

825. Pinus is:

 
 
 
 

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

 
 
 
 

827. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

830.

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

 
 
 
 

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

 
 
 
 

833. The leafy fern plant represents the:

 
 
 
 

834. Climbers are found in genus:

 
 
 
 

835. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

837. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

839. The sporophyte of Riccia is :

 
 
 
 

840. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

842. Pasteur is famous for his:

 
 
 
 

843. The fungi are mostly:

 
 
 
 

844. Mycoplasma is different from bacteria due to:

 
 
 
 

845. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

847. The megasporangium of Selaginella is:

 
 
 
 

848. Citrus canker is caused by:

 
 
 
 

849. Heterospory is the production of:

 
 
 
 

850. Usually, bacteria reproduce by:

 
 
 
 

851. 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:

 
 
 
 

852. The two conjugating gametangia of Rhizopus are:

 
 
 
 

853. Bryophyta have a special character from other plants:

 
 
 
 

854. Reserve food in Euglena is:

 
 
 
 

855. Which of the following is sago palm?

 
 
 
 

856. The Rhizopus is:

 
 
 
 

857. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

860. Bivalved siliceous shell or frustule occur in:

 
 
 
 

861. The central part of Funaria axis is :

 
 
 
 

862. 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:

 
 
 
 

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

 
 
 
 

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