Quiz_Random

1. In Selaginella, the microsporangia are:

 
 
 
 

2. The photosynthetic protists are:

 
 
 
 

3. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

9. Bacteria were first discovered by:

 
 
 
 

10. Bryophyta have a special character from other plants:

 
 
 
 

11. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

13. The ascus of yeast contains:

 
 
 
 

14. The plants of Funaria grow :

 
 
 
 

15. Indusium in Dryopteris is:

 
 
 
 

16. The gametophyte produced by apospory is :

 
 
 
 

17. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

19. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

21. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

23. The vascular bundles of Cycas stem are :

 
 
 
 

24. The zoospores of Ulothrix are :

 
 
 
 

25. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

27. The archegonia of Selaginella are differentiated by:

 
 
 
 

28. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

30. Cycas plant in appearance resembles :

 
 
 
 

31. Where does meiosis occur in yeast?

 
 
 
 

32. Halophiles are the bacteria that require for growth:

 
 
 
 

33. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

35. In Pteris, the archegonia are present:

 
 
 
 

36. Special feature of pollen grains of Pinus is :

 
 
 
 

37. Which is an exception to cell theory?

 
 
 
 

38. The largest alga is:

 
 
 
 

39. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

41. The fungi are mostly:

 
 
 
 

42. Mycoplasma are sensitive to:

 
 
 
 

43. Acellular slime mold is/are:

 
 
 
 

44. Late blight of potato is caused by:

 
 
 
 

45. Funaria is :

 
 
 
 

46. The spur of Pinus roxburghii has :

 
 
 
 

47. Enzymes are absent in:

 
 
 
 

48. Viruses have:

 
 
 
 

49. The chloroplast in Ulothrix is :

 
 
 
 

50. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

52. Vascular cryptogam is the term used for :

 
 
 
 

53. Water-net is the name of:

 
 
 
 

54. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. Fertility of the soil is increased by:

 
 
 
 

62. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

64. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

66. Parmelia belongs to :

 
 
 
 

67. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. In Funaria :

 
 
 
 

71. Reproduction in Rhizopus is:

 
 
 
 

72. The lambda phase is a:

 
 
 
 

73. The central part of Funaria axis is :

 
 
 
 

74. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

76. Plasmids are:

 
 
 
 

77. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

79. Pollination in Pinus is :

 
 
 
 

80. Pinus is:

 
 
 
 

81. Iodine is obtained from :

 
 
 
 

82. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

89. Synzoospore is produced in:

 
 
 
 

90. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

92. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

94. Leprosy is caused by:

 
 
 
 

95. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. Fern prothallus is:

 
 
 
 

100. Mixed cropping helps :

 
 
 
 

101. Pasteurized milk is:

 
 
 
 

102. Bacteriophage consists of:

 
 
 
 

103. Which of the following have algal zone?

 
 
 
 

104. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

106. Early blight of potato is caused by:

 
 
 
 

107. Germ theory of disease was proposed by:

 
 
 
 

108. Polystelic condition is found in:

 
 
 
 

109. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

110. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

112. Bacteria are considered to be plants because they:

 
 
 
 

113. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. Cocci types of bacteria are:

 
 
 
 

117. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

119. The Rhizopus is:

 
 
 
 

120. Ethylene oxide is widely used to:

 
 
 
 

121. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

123. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

124. Roots are absent in :

 
 
 
 

125. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. Red rot of sugarcane is caused by :

 
 
 
 

129. The chief characteristic of class Ascomycetes is:

 
 
 
 

130. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

132. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

134. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

136. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

139. 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:

 
 
 
 

140. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

142. Triple antigen injection or vaccine are for:

 
 
 
 

143. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

145. The stele of Dryopteris is a:

 
 
 
 

146. Lichen show :

 
 
 
 

147. The coralloid roots are :

 
 
 
 

148. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

151. Selaginella differs from Moss in having:

 
 
 
 

152. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

153. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

154. Which is a tautonym?

 
 
 
 

155. E coli is a:

 
 
 
 

156. Most primitive embryophytes are placed in :

 
 
 
 

157. Chemosynthetic bacteria are:

 
 
 
 

158. Leaf spot of groundnut is caused by :

 
 
 
 

159. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

161. Woody climbers are known as :

 
 
 
 

162. What is absent in Deuteromycetes?

 
 
 
 

163. An alga which is rich in proteins:

 
 
 
 

164. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

167. Which of the following shows heterotrichous habit?

 
 
 
 

168. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

170. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

172. Which of the following is sago palm?

 
 
 
 

173. Black rust of wheat is caused by:

 
 
 
 

174. The ferns are usually found:

 
 
 
 

175. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

177. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

180. Black rust of wheat is caused by:

 
 
 
 

181. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

186. Who discovered streptomycin?

 
 
 
 

187. Which bacteria convert nitrate into nitrogen?

 
 
 
 

188. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

190. Methanogens belong to:

 
 
 
 

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

 
 
 
 

192. The order generally ends with:

 
 
 
 

193. Seeds are characteristically found in:

 
 
 
 

194. Disease resistant plant varieties can be produced by :

 
 
 
 

195. What is streptomycin?

 
 
 
 

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

 
 
 
 

197. An Hfr bacterium is one that contains:

 
 
 
 

198. Circular DNA is seen in:

 
 
 
 

199. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. Small epidermal swellings due to infection are called :

 
 
 
 

204. 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?

 
 
 
 

205. What is a vector?

 
 
 
 

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

 
 
 
 

207. Green plants are classified as :

 
 
 
 

208. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

209. Gymnosperms could also be called as:

 
 
 
 

210. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. Viroids have:

 
 
 
 

217. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. The gametophyte of fern is as:

 
 
 
 

221. Late blight of potato is caused by :

 
 
 
 

222. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

224. Pasteurization of milk involves heating for:

 
 
 
 

225. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

227. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

229. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

231. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

233. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

235. Ovules are not found enclosed in ovary in :

 
 
 
 

236. The young leaves of Cycas have :

 
 
 
 

237. Zoogametes are not found in:

 
 
 
 

238. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

240. Which part of Riccia bears nurse cells?

 
 
 
 

241. Red rot of sugarcane is caused by :

 
 
 
 

242. In moss, sporophyte is formed on:

 
 
 
 

243. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

245. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

247. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

249. Anoxygenic photosynthesis occurs in:

 
 
 
 

250. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

251. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

254. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

257. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

259. Kuru, a human disease is caused by:

 
 
 
 

260. The sori in Dryopteris are found on:

 
 
 
 

261. The sporangiophores in Rhizopus are:

 
 
 
 

262. Cycas is different from mango in :

 
 
 
 

263. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

265. Citrus canker is caused by :

 
 
 
 

266. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

268.

 

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

 
 
 
 

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

 
 
 
 

271. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. The mycelium of Rhizopus is:

 
 
 
 

276. Cell walls of Gram-positive bacteria contain:

 
 
 
 

277. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

280. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

282. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

284. Pteridophytes are also known as :

 
 
 
 

285. John Hutchinson divided dicots into two divisions:

 
 
 
 

286. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

288. Which of the following is a parasitic algae?

 
 
 
 

289. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

291. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

293. The prothallus of fern represents the plant:

 
 
 
 

294. Funaria is a Bryophyta because :

 
 
 
 

295. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

297. Mycoplasma are:

 
 
 
 

298. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

300. Tautonyms are illegitimate in:

 
 
 
 

301. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

305. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

308. Which causes red tide?

 
 
 
 

309. Virion refers to:

 
 
 
 

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

 
 
 
 

311. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

313. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

315. Ovules are not found enclosed in ovary of:

 
 
 
 

316. Fruiting body of lichens is :

 
 
 
 

317. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

319. Metulae are found in:

 
 
 
 

320. The fern plant is:

 
 
 
 

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

 
 
 
 

322. Embryophyta includes:

 
 
 
 

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

 
 
 
 

324. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

334. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

336. 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:

 
 
 
 

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

 
 
 
 

338. Who discovered heterothallism in fungi?

 
 
 
 

339. Interferon is a:

 
 
 
 

340. Reserve food in Euglena is:

 
 
 
 

341. Majority of lichens are :

 
 
 
 

342. What are plasmids?

 
 
 
 

343. In Funaria, calyptra is derived from :

 
 
 
 

344. . Tapetum develops in:

 
 
 
 

345. Most resistant spore in bacteria is:

 
 
 
 

346. Botulism is a:

 
 
 
 

347. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

351. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

354. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

356. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

358. The sporophyte of Riccia is :

 
 
 
 

359. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

361. Rhizoids of Riccia are :

 
 
 
 

362. Most common type of conjugation in Spirogyra is :

 
 
 
 

363. In tracheophyta:

 
 
 
 

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

 
 
 
 

365. Cleavage polyembryony is found in :

 
 
 
 

366. Select the wrong statement:

 
 
 
 

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

 
 
 
 

368. What is the role of nitrifying bacteria?

 
 
 
 

369. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

371. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

373. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

380. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

382. The chloroplast of Chlamydomonas are:

 
 
 
 

383. Linnaeus is credited with introducing:

 
 
 
 

384. Psilotum is:

 
 
 
 

385. Simple polyembryony is found in :

 
 
 
 

386. Isomorphic type alternation of generation is found in:

 
 
 
 

387. Pollination drop is:

 
 
 
 

388. Cyanophage is a virus that attacks:

 
 
 
 

389. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

391. The middle sterile part of capsule is called:

 
 
 
 

392. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

395. The nucleus of bacteria is:

 
 
 
 

396. Placenta in fern is:

 
 
 
 

397. Which one of the following is a monocot?

 
 
 
 

398. Which of the following are included in Tracheophyta?

 
 
 
 

399. 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:

 
 
 
 

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

 
 
 
 

401. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

403. 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:

 
 
 
 

404. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

406. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

408. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

410.

411. Which organisms are the oldest life forms?

 
 
 
 

412. How is moss different from fern?

 
 
 
 

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

 
 
 
 

414. In a bacteriophage, DNA is present in:

 
 
 
 

415. Funaria is :

 
 
 
 

416. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

419. Pasteur is famous for his:

 
 
 
 

420. Nannandria are:

 
 
 
 

421. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

423. The gametophyte of fern bears:

 
 
 
 

424. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

426. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

428. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

430. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

432. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

433. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

435. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

437. Pythium debaryanum is the causative agent of:

 
 
 
 

438. In binomial system most of the words are:

 
 
 
 

439. Funaria are commonly found :

 
 
 
 

440. Seeds are characteristically found in :

 
 
 
 

441. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

443. Which of the following statements is not correct?

 
 
 
 

444. Fern plants are:

 
 
 
 

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

 
 
 
 

446. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

456. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

460. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

462. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

464. The roots of Cycas are :

 
 
 
 

465. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

467. The leaves of Funaria are :

 
 
 
 

468.

469. Which is the correct statement about Selaginella?

 
 
 
 

470. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

473. Water bloom is generally caused by :

 
 
 
 

474. Standard size of a herbarium sheet is:

 
 
 
 

475. Total parasites belong to:

 
 
 
 

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

 
 
 
 

477. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. Cycas is similar to a mustard plant :

 
 
 
 

483. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. Which is a fungicide?

 
 
 
 

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

 
 
 
 

490. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

492. Facultative saprophyte is:

 
 
 
 

493. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

495. The smallest bacterium is:

 
 
 
 

496. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

498. Fruits are not found in Cycas because:

 
 
 
 

499. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

501. Citrus canker is caused by:

 
 
 
 

502. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

505. The chief characteristic of bryophyta is that :

 
 
 
 

506. Diphtheria is caused by:

 
 
 
 

507. Typhoid in man is caused by:

 
 
 
 

508. The development of sporangium in Selaginella is:

 
 
 
 

509. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

511. 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?

 
 
 
 

512. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. The antherozoids of Funaria are :

 
 
 
 

516. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

518. Winged pollen grains are found in :

 
 
 
 

519. In moss, reduction division occurs in :

 
 
 
 

520. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

523. Mycoplasma is different from bacteria due to:

 
 
 
 

524. 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?

 
 
 
 

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

 
 
 
 

526. Siphonogamy is found in:

 
 
 
 

527. Which is not found in bacteria?

 
 
 
 

528. The fungi that grow on wood are called:

 
 
 
 

529. The term stele was given by:

 
 
 
 

530. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

533. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

535. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

537. Oswald Tippo’s classification is:

 
 
 
 

538. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

540.

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

 
 
 
 

542. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

544. Viruses are considered to be:

 
 
 
 

545. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

547. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

549. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

550. The two conjugating gametangia of Rhizopus are:

 
 
 
 

551. Common phycobiont in a lichen is :

 
 
 
 

552. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

554. Milk is converted to curd by:

 
 
 
 

555. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

557. Each chloroplast in Spirogyra bears :

 
 
 
 

558. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

561. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

563. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. LSD is:

 
 
 
 

568. Spores of which plants have chloroplast:

 
 
 
 

569. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. Lichens show :

 
 
 
 

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

 
 
 
 

574. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

576. Liverworts are included in :

 
 
 
 

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

 
 
 
 

578. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

581. Select the wrong statement:

 
 
 
 

582. The source of litmus is :

 
 
 
 

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

 
 
 
 

584. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

587. Discovery of penicillin was based on:

 
 
 
 

588. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

591. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. Which lichen is called Reindeer moss?

 
 
 
 

595. The fungi are usually:

 
 
 
 

596. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

598. The prothallus of fern is:

 
 
 
 

599. The smallest unit of classification is:

 
 
 
 

600. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

604. Rhizophore of Selaginella is:

 
 
 
 

605. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

607. Which is a redwood tree?

 
 
 
 

608. Aflatoxin is produced as a product in :

 
 
 
 

609. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

611. Bacteria growing on synthetic medium are called:

 
 
 
 

612. Lichens are indicators of :

 
 
 
 

613. Which group of algae have an incipient nucleus?

 
 
 
 

614. The disease apple scab is caused by:

 
 
 
 

615. Sporophyte of Funaria is :

 
 
 
 

616. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

618. Fruits are not found in:

 
 
 
 

619. Which of the following applies to Selaginella?

 
 
 
 

620. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

622. Male gametes in Dryopteris are:

 
 
 
 

623. The largest known bacterium is:

 
 
 
 

624. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

626. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

628. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

630. All algae have:

 
 
 
 

631. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. Why is Cycas called a living fossil?

 
 
 
 

635. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

638. Usually, bacteria reproduce by:

 
 
 
 

639. Sleeping sickness disease in man is caused by:

 
 
 
 

640. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. Clostridium can:

 
 
 
 

644. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

649. Saccharomyces ludwigii ascus produces:

 
 
 
 

650. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

654. Banana bunchy top is caused by :

 
 
 
 

655. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

657. Detailed study of bacteriophage was made by:

 
 
 
 

658. In Cycas the fertilization is:

 
 
 
 

659. The chromosomal number in:

 
 
 
 

660. Among the algae kelps are :

 
 
 
 

661. Lichens form the first community in

 
 
 
 

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

 
 
 
 

663. Etiology includes the study of :

 
 
 
 

664. All protozoans possess:

 
 
 
 

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

 
 
 
 

666. Helotism word is used for the symbiosis between :

 
 
 
 

667. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

669. Wine turns sour because of:

 
 
 
 

670. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

672. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

674. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

675. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

677. 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:

 
 
 
 

678. A gill of Agaricus:

 
 
 
 

679. Embryophyta includes :

 
 
 
 

680. True sexuality is not found in:

 
 
 
 

681. The orders generally have the uniform endings:

 
 
 
 

682. Longest known virus is:

 
 
 
 

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

 
 
 
 

684. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

688. Ergot is obtained from :

 
 
 
 

689. Botulinum toxin effects:

 
 
 
 

690. Ulothrix produces :

 
 
 
 

691. The leafy fern plant represents the:

 
 
 
 

692. Gram stain is used to:

 
 
 
 

693. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

696. Protistan algae obtain their food as:

 
 
 
 

697. Fruits are not found in :

 
 
 
 

698. Saccharomyces is well known for:

 
 
 
 

699. Some diseases caused by bacteria are:

 
 
 
 

700. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

703. The disease symptom necrosis refers to :

 
 
 
 

704. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

708. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

711. What is special feature of fern archegonia?

 
 
 
 

712. Ovary is absent in:

 
 
 
 

713. Lichens are the indicator of pollution :

 
 
 
 

714. In Gymnocarpeae the fruiting body is :

 
 
 
 

715. In moss, peristomial teeth are:

 
 
 
 

716. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

718. In moss, calyptra is formed from:

 
 
 
 

719. The tree fern is:

 
 
 
 

720. Generic name of mango is:

 
 
 
 

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

 
 
 
 

722. Smut of maize is caused by :

 
 
 
 

723. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

725. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

728. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

730. Quarantine regulations are concerned with:

 
 
 
 

731. Absorptive nutrition is:

 
 
 
 

732. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

735. Acetobacter is useful in:

 
 
 
 

736. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

738. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

742. Cycas revoluta is widely grown as :

 
 
 
 

743. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

745. Cycas is :

 
 
 
 

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

 
 
 
 

747. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

750. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

752. Select the correct statement: (NEET 2016)

 
 
 
 

753. The DNA of E coli is:

 
 
 
 

754. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

759. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

762. Mycoplasma contains:

 
 
 
 

763. Agar-agar is obtained from:

 
 
 
 

764. In Herpes virus DNA is:

 
 
 
 

765. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

767. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

770. Enteric bacteria are those bacteria that live:

 
 
 
 

771. Which is absent from the xylem of Cycas?

 
 
 
 

772. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

777. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

779. In Cycas:

 
 
 
 

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

 
 
 
 

781. Who among the following discovered virus?

 
 
 
 

782. Chief constituents of bordeaux mixture are :

 
 
 
 

783. The tallest moss in the world is :

 
 
 
 

784. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

789. Which class of Protozoa includes all parasitic forms?

 
 
 
 

790. To which class Riccia belongs :

 
 
 
 

791. Antibiotics cure the disease by:

 
 
 
 

792. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

795. Streptomyces falls under:

 
 
 
 

796. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

798. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

801. 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?

 
 
 
 

802. Viruses are commonly transmitted in plants through:

 
 
 
 

803. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

804. Which of the following are included in Tracheophyta?

 
 
 
 

805. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

810. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

813. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

815. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

817. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

823. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

825. The fungi used as food are:

 
 
 
 

826. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

828. Cryptogams include :

 
 
 
 

829. The Rhizopus gametes are formed in:

 
 
 
 

830. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

832. Facultative parasite is:

 
 
 
 

833. Which have the largest antherozoid?

 
 
 
 

834. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. The root nodules of leguminous plants contain:

 
 
 
 

840. The microsporophylls on the cone of Cycas are :

 
 
 
 

841. Ovary is absent in :

 
 
 
 

842. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

845. Which of the following does not contain chlorophyll?

 
 
 
 

846. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

851. Which is not true for Escherichia coli?

 
 
 
 

852. Mycoplasma was discovered by:

 
 
 
 

853. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

855. Pseudomycelium is found in:

 
 
 
 

856. Vascular cryptogams is the term used for:

 
 
 
 

857. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

861. Which among the following is a shrub?

 
 
 
 

862. Lichens are pioneers of vegetation in a :

 
 
 
 

863. Cycas is:

 
 
 
 

864. Extremely reduced gametophyte in plant kingdom is: