Quiz_Random

1. Woody climbers are known as :

 
 
 
 

2. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

4. Infective part of virus was discovered by:

 
 
 
 

5. Proembryo in Pinus is :

 
 
 
 

6. The genetic material of poxvirus is:

 
 
 
 

7. In tracheophyta:

 
 
 
 

8. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

15. The chloroplast of Chlamydomonas are:

 
 
 
 

16. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

18. Bacteria were first discovered by:

 
 
 
 

19. The gametophyte of fern bears:

 
 
 
 

20. Pollination in Cycas takes place by :

 
 
 
 

21. Vascular tissue is found in :

 
 
 
 

22. Fruiting body of lichens is :

 
 
 
 

23. Broad spectrum antibiotic is, which:

 
 
 
 

24. Which among the following is a shrub?

 
 
 
 

25. Funaria is :

 
 
 
 

26. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

27. The tree fern is:

 
 
 
 

28. Cleavage polyembryony is found in :

 
 
 
 

29. Redness of red sea is due to :

 
 
 
 

30. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

32. Which is the nuclear material in bacteria?

 
 
 
 

33. Ulothrix produces :

 
 
 
 

34. 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:

 
 
 
 

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

 
 
 
 

36. . Tapetum develops in:

 
 
 
 

37. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

39. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Siphonogamy is found in:

 
 
 
 

53. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Fern prothallus is:

 
 
 
 

58. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

59. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

61. Cycas revoluta is widely grown as :

 
 
 
 

62. The tallest moss in the world is :

 
 
 
 

63. The megaspore of Selaginella on germination produces:

 
 
 
 

64. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

66. Agar-agar is obtained from:

 
 
 
 

67. The development of Selaginella embryo is:

 
 
 
 

68. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

70. What is streptomycin?

 
 
 
 

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

 
 
 
 

72. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. Funaria is :

 
 
 
 

76. Lichens are the indicator of pollution :

 
 
 
 

77. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. The fungi are mostly:

 
 
 
 

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

 
 
 
 

82. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

84. TMV was isolated in crystalline form by:

 
 
 
 

85. Bacteriophage consists of:

 
 
 
 

86. Zoogametes are not found in:

 
 
 
 

87. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

89. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

91. Embryophyta includes:

 
 
 
 

92. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

94. 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:

 
 
 
 

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

 
 
 
 

96. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

98. The gametophyte of fern is as:

 
 
 
 

99. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

102. The fungi that grow on wood are called:

 
 
 
 

103. The zoospores of Ulothrix are :

 
 
 
 

104. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

106. Which is a tautonym?

 
 
 
 

107. What are plasmids?

 
 
 
 

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

 
 
 
 

109. Clostridium can:

 
 
 
 

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

 
 
 
 

111. Select the wrong statement:

 
 
 
 

112. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

115. Rhizopus belongs to:

 
 
 
 

116. Cryptogams include :

 
 
 
 

117. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

119. Most primitive kind of flower is represented by:

 
 
 
 

120. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

122. Male gametes in Dryopteris are:

 
 
 
 

123. The seedless plants which possess vascular tissues are:

 
 
 
 

124. Heterosporous pteridophytes always form:

 
 
 
 

125. Acetobacter is useful in:

 
 
 
 

126. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

129. Choose the correct statement about Spirogyra:

 
 
 
 

130. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

136. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

138. The chromosomal number in:

 
 
 
 

139. Acellular slime mold is/are:

 
 
 
 

140. Viruses are considered to be:

 
 
 
 

141. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

143. Bacteria are considered to be plants because they:

 
 
 
 

144. The leafy fern plant represents the:

 
 
 
 

145. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

147. In Funaria :

 
 
 
 

148. Which is the correct statement about Selaginella?

 
 
 
 

149. The sporangium of fern contains nearly:

 
 
 
 

150. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

152. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

154. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

156. Most appropriate word for protozoans is:

 
 
 
 

157. Detailed study of bacteriophage was made by:

 
 
 
 

158. Lichens show :

 
 
 
 

159. Longest known virus is:

 
 
 
 

160. To which country Antony van Leeuwenhoek belong?

 
 
 
 

161. The lambda phase is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

166. Most primitive group of vascular plants are:

 
 
 
 

167. Most primitive embryophytes are placed in:

 
 
 
 

168. Most resistant spore in bacteria is:

 
 
 
 

169. Which of the following have a prokaryotic cell?

 
 
 
 

170. Special feature of pollen grains of Pinus is :

 
 
 
 

171. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

173. Black rust of wheat is caused by:

 
 
 
 

174. Which fixes atmospheric nitrogen?

 
 
 
 

175. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

179. The ferns are usually found:

 
 
 
 

180. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

183. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

184. Black rust of wheat is caused by:

 
 
 
 

185. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

191. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

193. Each chloroplast in Spirogyra bears :

 
 
 
 

194. Majority of lichens are :

 
 
 
 

195. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

197. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

202. The gametophyte produced by apospory is :

 
 
 
 

203. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

207. Ergot of rye is caused by:

 
 
 
 

208. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

210. All protozoans possess:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

214. Rice, pea, potato are :

 
 
 
 

215. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Fern plants are:

 
 
 
 

224. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

226. What is a vector?

 
 
 
 

227. Wine turns sour because of:

 
 
 
 

228. What are Cyanobacteria?

 
 
 
 

229. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

230. Who discovered streptomycin?

 
 
 
 

231. Water-net is the name of:

 
 
 
 

232. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

234. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

237. Red rot of sugarcane is caused by :

 
 
 
 

238. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

240. Pteridophyta are also called:

 
 
 
 

241. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

243. Nitrogen-fixing bacteria may be located:

 
 
 
 

244. Penicillin is obtained from:

 
 
 
 

245. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

247. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

249. Which group of algae have an incipient nucleus?

 
 
 
 

250. Ethylene oxide is widely used to:

 
 
 
 

251. Polystelic condition is found in:

 
 
 
 

252. Club moss is the common name of :

 
 
 
 

253. Cyathia is characterized by:

 
 
 
 

254. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

256. Green plants are classified as :

 
 
 
 

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

 
 
 
 

258. Why is Cycas called a living fossil?

 
 
 
 

259. Which of the following lichens is harmful?

 
 
 
 

260. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

268. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

271. Water bloom is generally caused by :

 
 
 
 

272. 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:

 
 
 
 

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

 
 
 
 

274. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

276. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

278. The fern plant is:

 
 
 
 

279. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

281. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

283. Cycas plant in appearance resembles :

 
 
 
 

284. Protozoans are considered animals because these are:

 
 
 
 

285. Which is an exception to cell theory?

 
 
 
 

286. 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?

 
 
 
 

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

 
 
 
 

288. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

291. Chemosynthetic bacteria are:

 
 
 
 

292. Water-borne bacterial diseases are:

 
 
 
 

293. Which causes red tide?

 
 
 
 

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

 
 
 
 

295. Which is a redwood tree?

 
 
 
 

296. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

298. Which is not found in bacteria?

 
 
 
 

299. Red rot of sugarcane is caused by :

 
 
 
 

300. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

304. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

306. The mode of nutrition of bacteria is usually:

 
 
 
 

307. Tautonyms are illegitimate in:

 
 
 
 

308. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

310. Reproduction in Rhizopus is:

 
 
 
 

311. Bacteria differ from viruses in being sensitive to:

 
 
 
 

312. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

314. Botulism is a:

 
 
 
 

315. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

317. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

320. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

322. What is mycorrhiza?

 
 
 
 

323. The root nodules of leguminous plants contain:

 
 
 
 

324. Sexual reproduction of lichen is due to :

 
 
 
 

325. Simple polyembryony is found in :

 
 
 
 

326. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

328. Pseudomycelium is found in:

 
 
 
 

329. Fairy ring is the name given to:

 
 
 
 

330. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

332. Leprosy is caused by:

 
 
 
 

333. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. Metulae are found in:

 
 
 
 

337. The leaves of Funaria are :

 
 
 
 

338. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

340. Synzoospore is produced in:

 
 
 
 

341. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

343. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

345. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

349. Indusium in Dryopteris is:

 
 
 
 

350. Pasteurized milk is:

 
 
 
 

351. Antibiotic has been extracted from :

 
 
 
 

352. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

357. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

359. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

361. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. The largest known bacterium is:

 
 
 
 

365. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

370. In binomial system most of the words are:

 
 
 
 

371. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

374. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

380. Which of the following is a parasitic algae?

 
 
 
 

381. Bryophyta have been placed in cryptogams because:

 
 
 
 

382. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

384. Gymnosperms could also be called as:

 
 
 
 

385. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

387. Sporophyte of Funaria is :

 
 
 
 

388. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

391. Amoeba is a member of the phylum:

 
 
 
 

392. Diphtheria is caused by:

 
 
 
 

393. Cyanophage is a virus that attacks:

 
 
 
 

394. The roots of Cycas are :

 
 
 
 

395. Bivalved siliceous shell or frustule occur in:

 
 
 
 

396. Smallpox is caused by:

 
 
 
 

397. Pneumonia is caused by:

 
 
 
 

398. Smut of maize is caused by :

 
 
 
 

399. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

403. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

405. Bacteria which are spherical are called:

 
 
 
 

406. The sporangia of Selaginella are attached:

 
 
 
 

407. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

408. Common phycobiont in a lichen is :

 
 
 
 

409. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

411. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

418. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

420. In moss, conducting tissue is made up of

 
 
 
 

421. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Botulinum toxin effects:

 
 
 
 

425. Some biologists have used the term Mycetozoa for:

 
 
 
 

426. The source of litmus is :

 
 
 
 

427. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. Isomorphic type alternation of generation is found in:

 
 
 
 

434. How is moss different from fern?

 
 
 
 

435. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

438. E coli is a:

 
 
 
 

439. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

441. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

442. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

444.

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

 
 
 
 

446. Genetic material of TMV is:

 
 
 
 

447. In Funaria, calyptra is derived from :

 
 
 
 

448. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

449. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

454. Lichens form the first community in

 
 
 
 

455. Transfusion tissue is present in the leaflet of:

 
 
 
 

456. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

460. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

464. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

466. The role of meiosis is for:

 
 
 
 

467. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

469. Anoxygenic photosynthesis occurs in:

 
 
 
 

470. The archegonia of Selaginella are differentiated by:

 
 
 
 

471. Roots are absent in :

 
 
 
 

472. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

474. Fruits are not found in :

 
 
 
 

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

 
 
 
 

476. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

478. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

481. Linnaeus is credited with introducing:

 
 
 
 

482. 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?

 
 
 
 

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

 
 
 
 

484. Late blight of potato is caused by:

 
 
 
 

485. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

489. Selaginella differs from Moss in having:

 
 
 
 

490. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

492. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

494. Yeast is a source of:

 
 
 
 

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

 
 
 
 

496. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

499. Which of the following is a heterosporous pteridophyte?

 
 
 
 

500. Oswald Tippo’s classification is:

 
 
 
 

501. The mycelium of Rhizopus is:

 
 
 
 

502. The chief characteristic of bryophyta is that :

 
 
 
 

503. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

505. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

507. Which of the following statements is not correct?

 
 
 
 

508. Green plants are classified as:

 
 
 
 

509. The phloem of vascular system of Cycas is :

 
 
 
 

510. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

512. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

517. In Pteris, the archegonia are present:

 
 
 
 

518. Mixed cropping helps :

 
 
 
 

519. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

523. Total parasites belong to:

 
 
 
 

524. Who named prion?

 
 
 
 

525. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

530. In a diplontic life cycle:

 
 
 
 

531. Pinus is:

 
 
 
 

532. Which is an edible fungus?

 
 
 
 

533. Heterotrichous habit means :

 
 
 
 

534. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

539. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

540. Maximum diversity of life forms occurs in :

 
 
 
 

541. Mycoplasma are:

 
 
 
 

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

 
 
 
 

543. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

547. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

549. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

552. The stele of Dryopteris is a:

 
 
 
 

553. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

555. Reserve food in Euglena is:

 
 
 
 

556. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

564. Little leaf disease of Brinjal is caused by:

 
 
 
 

565. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

570. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

572. The ascus of yeast contains:

 
 
 
 

573. The sori in Dryopteris are found on:

 
 
 
 

574. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

576. Absorptive nutrition is:

 
 
 
 

577. Pollination in Pinus is :

 
 
 
 

578. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

581. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

583. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

585. What is the role of nitrifying bacteria?

 
 
 
 

586. Which one of the following is a monocot?

 
 
 
 

587. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. Among the algae kelps are :

 
 
 
 

591. Cycas is:

 
 
 
 

592. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

594. The Rhizopus gametes are formed in:

 
 
 
 

595. The vascular bundles of Cycas stem are :

 
 
 
 

596. Virion refers to:

 
 
 
 

597. Etiology includes the study of :

 
 
 
 

598. Winged seeds are found in :

 
 
 
 

599. Yeast belongs to class:

 
 
 
 

600. Citrus canker is caused by:

 
 
 
 

601. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

603. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

606. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

609. Ergot is obtained from :

 
 
 
 

610. Banana bunchy top is caused by :

 
 
 
 

611. In Cycas:

 
 
 
 

612. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

614. Lichens reproduce by :

 
 
 
 

615. In Herpes virus DNA is:

 
 
 
 

616.

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

 
 
 
 

618. Seeds are characteristically found in:

 
 
 
 

619. Nannandria are:

 
 
 
 

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

 
 
 
 

621. Black rust of wheat is caused by:

 
 
 
 

622. Protists which are diploid reproduce sexually by:

 
 
 
 

623. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

625. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

629. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

631. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

632. Cycas is different from mango in :

 
 
 
 

633. Discovery of penicillin was based on:

 
 
 
 

634. Sexual reproduction in Rhizopus is by:

 
 
 
 

635. Chief constituents of bordeaux mixture are :

 
 
 
 

636. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

639. The first to isolate a plant virus was:

 
 
 
 

640. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

642. Which of the following is true for viruses?

 
 
 
 

643. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

646. Disease resistant plant varieties can be produced by :

 
 
 
 

647. Streptomyces falls under:

 
 
 
 

648. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

652. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

655. Yeast grows more rapidly in:

 
 
 
 

656. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

658. Meiosis in Ulothrix takes place:

 
 
 
 

659. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

661. The coralloid roots are :

 
 
 
 

662. Cell walls of Gram-positive bacteria contain:

 
 
 
 

663. Winged pollen grains are found in :

 
 
 
 

664. Which of the following are included in Tracheophyta?

 
 
 
 

665. Who discovered cyanophages?

 
 
 
 

666. Cellular slime mold is:

 
 
 
 

667. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

670. The fungi used as food are:

 
 
 
 

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

 
 
 
 

672. Facultative parasite is:

 
 
 
 

673. In moss, sporophyte is formed on:

 
 
 
 

674. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

676. Plasmids are:

 
 
 
 

677. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

679. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

681. Sporophyte of fern is:

 
 
 
 

682. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

684. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

686. Aflatoxin is produced as a product in :

 
 
 
 

687. The antherozoids of Funaria are :

 
 
 
 

688. Which bacteria convert nitrate into nitrogen?

 
 
 
 

689. Ovary is absent in :

 
 
 
 

690. An alga which is rich in proteins:

 
 
 
 

691. Bacteria are placed under:

 
 
 
 

692. Male gametophyte of Selaginella is found:

 
 
 
 

693. Climbers are found in genus:

 
 
 
 

694. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

698. Most of the algae are :

 
 
 
 

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

 
 
 
 

700. Which class of Protozoa includes all parasitic forms?

 
 
 
 

701. Fruits are not found in:

 
 
 
 

702. Pythium debaryanum is the causative agent of:

 
 
 
 

703. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

705. Multicellular and jacketed sex organs are found in :

 
 
 
 

706. The teeth of peristome of Funaria are :

 
 
 
 

707. Leaf spot of groundnut is caused by :

 
 
 
 

708. Rhizophore of Selaginella is:

 
 
 
 

709. Which lichen is called Reindeer moss?

 
 
 
 

710. Which statement is wrong in regard to bacteria?

 
 
 
 

711. LSD is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. Liverworts are included in :

 
 
 
 

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

 
 
 
 

716. Downy mildew disease is caused by :

 
 
 
 

717. Mostly type of zygospore in Ulothrix is:

 
 
 
 

718. Heterocysts are found in :

 
 
 
 

719. The disease apple scab is caused by:

 
 
 
 

720. The largest alga is:

 
 
 
 

721. Diploxylic vascular bundles are found in:

 
 
 
 

722. Kuru, a human disease is caused by:

 
 
 
 

723. The sporophyte of Riccia is :

 
 
 
 

724. The orders generally have the uniform endings:

 
 
 
 

725. Lichen show :

 
 
 
 

726. Ovary is absent in:

 
 
 
 

727. Select the wrong statement:

 
 
 
 

728. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

730. Viroids have:

 
 
 
 

731. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

733. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. The antibiotic is obtained from:

 
 
 
 

739. Pollination drop is:

 
 
 
 

740. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

742. Spermatophyta are characterized by producing:

 
 
 
 

743. The upper region of moss capsule is :

 
 
 
 

744. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

751. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

752. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

754. Small epidermal swellings due to infection are called :

 
 
 
 

755. Viruses have:

 
 
 
 

756. Methanogens belong to:

 
 
 
 

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

 
 
 
 

758. Antibiotics cure the disease by:

 
 
 
 

759. Sleeping sickness disease in man is caused by:

 
 
 
 

760. Club moss and Peat moss belong to:

 
 
 
 

761. Triple antigen injection or vaccine are for:

 
 
 
 

762. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

765. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

772. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

774. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

776. Gram stain is used to:

 
 
 
 

777. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

779. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

781. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

790. Circular DNA is seen in:

 
 
 
 

791. The fungi are usually:

 
 
 
 

792. Vascular cryptogam is the term used for :

 
 
 
 

793. In Gymnocarpeae the fruiting body is :

 
 
 
 

794. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

796.

797. Parmelia belongs to :

 
 
 
 

798. The sporophyte of Riccia is represented by :

 
 
 
 

799. The middle sterile part of capsule is called:

 
 
 
 

800. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

802. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

806. Spores of which plants have chloroplast:

 
 
 
 

807. Heterospory is the production of:

 
 
 
 

808. Pinus gerardiana is :

 
 
 
 

809. 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:

 
 
 
 

810. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

812. Spirogyra differs from moss protonema in having :

 
 
 
 

813. Which of the following does not contain chlorophyll?

 
 
 
 

814. Nitrifying bacteria play an important role by converting:

 
 
 
 

815. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

816. Lichens reproduce by :

 
 
 
 

817. 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:

 
 
 
 

818. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

820. Saccharomyces is used in:

 
 
 
 

821. The development of sporangium in Selaginella is:

 
 
 
 

822.

 

823. Mycoplasma are sensitive to:

 
 
 
 

824. Photoautotrophic bacteria have:

 
 
 
 

825. Vascular cryptogams is the term used for:

 
 
 
 

826. Which is a fungicide?

 
 
 
 

827. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

829. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

832. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

834. What is special feature of fern archegonia?

 
 
 
 

835. The alga, Spirogyra are found in :

 
 
 
 

836. Penicillin was discovered by:

 
 
 
 

837. The gametophyte of moss has distinct phases :

 
 
 
 

838. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

841. Germ theory of disease was proposed by:

 
 
 
 

842. Halophiles are the bacteria that require for growth:

 
 
 
 

843. Bentham and Hooker placed gymnosperms:

 
 
 
 

844. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

848. Placenta in fern is:

 
 
 
 

849. Azolla and Salvinia both are:

 
 
 
 

850. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

852. Interferon is a:

 
 
 
 

853. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

856. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

859. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

861. Citrus canker is caused by :

 
 
 
 

862. 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?

 
 
 
 

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

 
 
 
 

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