Quiz_Random

1. Detailed study of bacteriophage was made by:

 
 
 
 

2. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Helotism word is used for the symbiosis between :

 
 
 
 

15. Reproduction in Cycas takes place by :

 
 
 
 

16. The root nodules of leguminous plants contain:

 
 
 
 

17. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. Small epidermal swellings due to infection are called :

 
 
 
 

21. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. The source of litmus is :

 
 
 
 

25. The seedless plants which possess vascular tissues are:

 
 
 
 

26. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

28. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

30. Which of the following applies to Selaginella?

 
 
 
 

31. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. The most primitive vascular plants is:

 
 
 
 

36. Fern prothallus is:

 
 
 
 

37. Fertility of the soil is increased by:

 
 
 
 

38. Psilotum is:

 
 
 
 

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

 
 
 
 

40. Which of the following have a prokaryotic cell?

 
 
 
 

41. Which is an edible fungus?

 
 
 
 

42. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

44. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

46. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

48. Lichens reproduce by :

 
 
 
 

49. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. The nucleus of bacteria is:

 
 
 
 

53. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

59. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

61. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Rhizopus and yeast are usually:

 
 
 
 

65. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Sporophyte of fern is:

 
 
 
 

70. Mycoplasma are sensitive to:

 
 
 
 

71. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

73. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

75. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

77. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

79. Which is a gametophytic tissue?

 
 
 
 

80. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

91. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Yeast is a source of:

 
 
 
 

95. In Cycas the fertilization is:

 
 
 
 

96. Cycas is different from mango in :

 
 
 
 

97. Common phycobiont in a lichen is :

 
 
 
 

98. Little leaf disease of Brinjal is caused by:

 
 
 
 

99. Which one of the following statement is wrong?

 
 
 
 

100. Amoeba is a member of the phylum:

 
 
 
 

101. What is absent in Deuteromycetes?

 
 
 
 

102. What is a vector?

 
 
 
 

103. The truncated cone of HIV consists of:

 
 
 
 

104. What is mycorrhiza?

 
 
 
 

105. Vascular cryptogams is the term used for:

 
 
 
 

106. Leaf spot of groundnut is caused by :

 
 
 
 

107. Chemosynthetic bacteria are:

 
 
 
 

108. The fern plant is:

 
 
 
 

109. Nannandria are:

 
 
 
 

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

 
 
 
 

111. Mycoplasma is different from bacteria due to:

 
 
 
 

112. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

114. In Cycas which structure is equivalent to stamen?

 
 
 
 

115. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. Interferon is a:

 
 
 
 

119. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

121. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

124. Siphonogamy is found in:

 
 
 
 

125. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

127. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

131. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

133. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

136. Protistan algae obtain their food as:

 
 
 
 

137. Antibiotics cure the disease by:

 
 
 
 

138. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

140. Which is an exception to cell theory?

 
 
 
 

141. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

144. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

146. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. Lichens are pioneers of vegetation in a :

 
 
 
 

150. Multicellular and jacketed sex organs are found in :

 
 
 
 

151. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

153. Cycas is similar to a mustard plant :

 
 
 
 

154. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

156. Fern phloem lacks:

 
 
 
 

157. Viroids have:

 
 
 
 

158. TMV was isolated in crystalline form by:

 
 
 
 

159. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. Saccharomyces ludwigii ascus produces:

 
 
 
 

163. The smallest unit of classification is:

 
 
 
 

164. Pteridophytes are also known as :

 
 
 
 

165. The disease apple scab is caused by:

 
 
 
 

166. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

169. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

171. Bacteria are found everywhere, except:

 
 
 
 

172. Some diseases caused by bacteria are:

 
 
 
 

173. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

177. Etiology includes the study of :

 
 
 
 

178. The genetic material of poxvirus is:

 
 
 
 

179. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

182. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

183. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

185. The flagella of Chlamydomonas are:

 
 
 
 

186. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Fern prothallus produces:

 
 
 
 

190. Water-net is the name of:

 
 
 
 

191. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

196. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

198. Endemic plants are characterised by their:

 
 
 
 

199.

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

 
 
 
 

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

 
 
 
 

202. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

204. Vascular tissue is found in :

 
 
 
 

205. Some bacteria cannot be killed easily because of:

 
 
 
 

206. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

208. Cycas is:

 
 
 
 

209. Ginkgo biloba is a:

 
 
 
 

210. Streptomyces falls under:

 
 
 
 

211. Reserve food in Euglena is:

 
 
 
 

212. NBG of Lucknow is now named as:

 
 
 
 

213. The sporophyte of Riccia is represented by :

 
 
 
 

214. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

216. Why is Cycas called a living fossil?

 
 
 
 

217. Methanogens belong to:

 
 
 
 

218. Spores of which plants have chloroplast:

 
 
 
 

219. 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:

 
 
 
 

220. In dinoflagellates, the two flagella are:

 
 
 
 

221. What are plasmids?

 
 
 
 

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

 
 
 
 

223. Water bloom is generally caused by :

 
 
 
 

224. Which is not true for Escherichia coli?

 
 
 
 

225. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

227. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

229. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

233. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

235. Aflatoxin is produced as a product in :

 
 
 
 

236. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

238. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

240. All archaebacteria lack:

 
 
 
 

241. Bacteriophages have been used as:

 
 
 
 

242. Which bacteria convert nitrate into nitrogen?

 
 
 
 

243. Proembryo in Pinus is :

 
 
 
 

244. Streptomycin is obtained from:

 
 
 
 

245. The archegonia in Selaginella develop on:

 
 
 
 

246. Most common type of conjugation in Spirogyra is :

 
 
 
 

247. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

249. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

251. The leaves of Funaria are :

 
 
 
 

252. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

254. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

257. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

259. Rice, pea, potato are :

 
 
 
 

260. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

262. Water-borne bacterial diseases are:

 
 
 
 

263. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. The development of Selaginella embryo is:

 
 
 
 

268. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

271. Ethylene oxide is widely used to:

 
 
 
 

272. Mycoplasma was discovered by:

 
 
 
 

273. Liverworts are included in :

 
 
 
 

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

 
 
 
 

275. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

278. Germination of the seed of Pinus is :

 
 
 
 

279. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

281. Oswald Tippo’s classification is:

 
 
 
 

282. Longest known virus is:

 
 
 
 

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

 
 
 
 

284. Which one of the following is a monocot?

 
 
 
 

285. Some biologists have used the term Mycetozoa for:

 
 
 
 

286. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

288.

 

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

 
 
 
 

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

 
 
 
 

291. Wine turns sour because of:

 
 
 
 

292. The megasporangium of Selaginella is:

 
 
 
 

293. Metulae are found in:

 
 
 
 

294. The upper region of moss capsule is :

 
 
 
 

295. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

298. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

300. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

303. Spirogyra represents the :

 
 
 
 

304. Diphtheria is caused by:

 
 
 
 

305. Bacteria were first discovered by:

 
 
 
 

306. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

307. Which is the nuclear material in bacteria?

 
 
 
 

308. Linnaeus is credited with introducing:

 
 
 
 

309. Reproduction in Rhizopus is:

 
 
 
 

310. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

312. Funaria is :

 
 
 
 

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

 
 
 
 

314. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

317. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

319. Ectocarpus produces:

 
 
 
 

320. Majority of lichens are :

 
 
 
 

321. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

325. Pollination in Pinus is :

 
 
 
 

326. Male gametes in Dryopteris are:

 
 
 
 

327. Generic name of mango is:

 
 
 
 

328. Gram stain is used to:

 
 
 
 

329. The middle sterile part of capsule is called:

 
 
 
 

330. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

332. Mucilaginous canals in Cycas are found in :

 
 
 
 

333. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

338. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

340. Pasteurized milk is:

 
 
 
 

341. The chief characteristic of bryophyta is that :

 
 
 
 

342. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

344. One of the distinctive feature of Spirogyra is :

 
 
 
 

345. Ergot is obtained from :

 
 
 
 

346. The DNA of E coli is:

 
 
 
 

347. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

349. 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:

 
 
 
 

350. Circular DNA is seen in:

 
 
 
 

351. The archegonia of Selaginella are differentiated by:

 
 
 
 

352. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

354. Facultative parasite is:

 
 
 
 

355. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

359. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

363. Spermatophyta are characterized by producing:

 
 
 
 

364. Bacteria are considered to be plants because they:

 
 
 
 

365. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

367. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

373. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

375. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

377. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

379. Which of the following are absent in Mycoplasma?

 
 
 
 

380. Mycoplasma are:

 
 
 
 

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

 
 
 
 

382. Ovules are not found enclosed in ovary in :

 
 
 
 

383. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

385. Cyanophage is a virus that attacks:

 
 
 
 

386. Milk is converted to curd by:

 
 
 
 

387. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

390. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

392. Who named prion?

 
 
 
 

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

 
 
 
 

394. Transfusion tissue is present in the leaflet of:

 
 
 
 

395. Most primitive kind of flower is represented by:

 
 
 
 

396. Most primitive embryophytes are placed in:

 
 
 
 

397. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

400. Red rot of sugarcane is caused by:

 
 
 
 

401. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

403. Pinus is:

 
 
 
 

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

 
 
 
 

405. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

407. Diploxylic vascular bundles are found in:

 
 
 
 

408. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

410. How is moss different from fern?

 
 
 
 

411. In moss, calyptra is formed from:

 
 
 
 

412. Penicillin is obtained from:

 
 
 
 

413. Azolla and Salvinia both are:

 
 
 
 

414. Which group of algae have an incipient nucleus?

 
 
 
 

415. Each chloroplast in Spirogyra bears :

 
 
 
 

416. Parmelia belongs to :

 
 
 
 

417. Pollination in Cycas takes place by :

 
 
 
 

418. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

419. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

422. Late blight of potato is caused by:

 
 
 
 

423. Bacteria are placed under:

 
 
 
 

424. The sporangia of Selaginella are attached:

 
 
 
 

425. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

428. The role of meiosis is for:

 
 
 
 

429. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

431. Which is a fungicide?

 
 
 
 

432. In Gymnosperms endosperm is a:

 
 
 
 

433. The zoospores of Ulothrix are :

 
 
 
 

434. In Cycas:

 
 
 
 

435.

436. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

438. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

440. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

444. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

446. The smallest bacterium is:

 
 
 
 

447. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

449. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

451. Cyathia is characterized by:

 
 
 
 

452. The gametophyte of fern bears:

 
 
 
 

453. The fungi are usually:

 
 
 
 

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

 
 
 
 

455. In angiosperms double fertilization represents:

 
 
 
 

456. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

458. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

460. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

462. Penicillin was discovered by:

 
 
 
 

463. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

467. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

469. Most appropriate word for protozoans is:

 
 
 
 

470. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

472. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

477. Mycoplasmas are not viruses in nature because:

 
 
 
 

478. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

480. Leprosy is caused by:

 
 
 
 

481. The leaf of Cycas shows:

 
 
 
 

482. Ovary is absent in:

 
 
 
 

483. The roots of Cycas are :

 
 
 
 

484. 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?

 
 
 
 

485. Mycoplasma contains:

 
 
 
 

486. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

489. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

493. Select the wrong statement:

 
 
 
 

494. Cell walls of Gram-positive bacteria contain:

 
 
 
 

495. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498. To which country Antony van Leeuwenhoek belong?

 
 
 
 

499. Which causes red tide?

 
 
 
 

500. Downy mildew disease is caused by :

 
 
 
 

501. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

503. The fungi that grow on wood are called:

 
 
 
 

504. Ovary is absent in :

 
 
 
 

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

 
 
 
 

506. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

509. Polystelic condition is found in:

 
 
 
 

510. Photosynthetic bacteria have:

 
 
 
 

511. Protists which are diploid reproduce sexually by:

 
 
 
 

512. Which is not found in bacteria?

 
 
 
 

513. Which of the following is a heterosporous pteridophyte?

 
 
 
 

514. Funaria is :

 
 
 
 

515. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. The ascus of yeast contains:

 
 
 
 

519. The lambda phase is a:

 
 
 
 

520. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

523. Which statement is wrong in regard to bacteria?

 
 
 
 

524. Tautonyms are illegitimate in:

 
 
 
 

525. E coli is a:

 
 
 
 

526. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

529. In a bacteriophage, DNA is present in:

 
 
 
 

530. The fungi used as food are:

 
 
 
 

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

 
 
 
 

532. Rhizoids of Riccia are :

 
 
 
 

533. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

535. The ferns are usually found:

 
 
 
 

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

 
 
 
 

537. The coralloid roots are :

 
 
 
 

538. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. Red rot of sugarcane is caused by :

 
 
 
 

544. A gill of Agaricus:

 
 
 
 

545. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

550. The sporangiophores in Rhizopus are:

 
 
 
 

551. Fruits are not found in:

 
 
 
 

552. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

555. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

559. Fairy ring is the name given to:

 
 
 
 

560. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

563. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

569. Which of the following lichens is harmful?

 
 
 
 

570. Select the wrong statement:

 
 
 
 

571. Most resistant spore in bacteria is:

 
 
 
 

572. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

573. In moss, stomata are found:

 
 
 
 

574. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

576. To which class Riccia belongs :

 
 
 
 

577. Lichens form the first community in

 
 
 
 

578. The stele of Dryopteris is a:

 
 
 
 

579. Fruiting body of lichens is :

 
 
 
 

580. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

582. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

584. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

586. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

588. Bivalved siliceous shell or frustule occur in:

 
 
 
 

589. Bacteria differ from viruses in being sensitive to:

 
 
 
 

590. The fungi are mostly:

 
 
 
 

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

 
 
 
 

592. Viruses are commonly transmitted in plants through:

 
 
 
 

593. Fruits are not found in :

 
 
 
 

594. Cleavage polyembryony is found in :

 
 
 
 

595. The Rhizopus gametes are formed in:

 
 
 
 

596. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

598. The plants of Funaria grow :

 
 
 
 

599. Sporophyte of Funaria is :

 
 
 
 

600. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. Choose the correct statement about Spirogyra:

 
 
 
 

604. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

606. In moss, conducting tissue is made up of

 
 
 
 

607. Lichens are indicators of :

 
 
 
 

608. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

610. The orders generally have the uniform endings:

 
 
 
 

611. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

613. 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:

 
 
 
 

614. The prothallus of fern represents the plant:

 
 
 
 

615. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. Viruses have:

 
 
 
 

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

 
 
 
 

620. Spirogyra differs from moss protonema in having :

 
 
 
 

621. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

626. Which class of Protozoa includes all parasitic forms?

 
 
 
 

627. The sporangium of fern contains nearly:

 
 
 
 

628. Pasteurization of milk involves heating for:

 
 
 
 

629. Roots are absent in :

 
 
 
 

630. Nitrifying bacteria play an important role by converting:

 
 
 
 

631. Photosynthetic protists belong to:

 
 
 
 

632. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

634. The largest alga is:

 
 
 
 

635. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

638. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

640. Total parasites belong to:

 
 
 
 

641. The leaves of Funaria are :

 
 
 
 

642. 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?

 
 
 
 

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

 
 
 
 

644. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

646. All algae have:

 
 
 
 

647. The chromosomal number in:

 
 
 
 

648. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

650. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

654. The gametophyte of fern is as:

 
 
 
 

655. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

656. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

659. LSD is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

663. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

666. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

667. In moss, sporophyte is formed on:

 
 
 
 

668. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

670. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

672. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

674. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. Lichens show :

 
 
 
 

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

 
 
 
 

679. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

681. Antibiotic has been extracted from :

 
 
 
 

682. Clostridium can:

 
 
 
 

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

 
 
 
 

684. Fruits are not found in Cycas because:

 
 
 
 

685. Who among the following discovered virus?

 
 
 
 

686. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

688. Soil fertility is lost by the activities of:

 
 
 
 

689. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

691. The zygospore in Rhizopus on germination forms:

 
 
 
 

692. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

694. Sometimes the bacterial cell is enclosed in:

 
 
 
 

695. 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?

 
 
 
 

696. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

698. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

701. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

703. Which is a tautonym?

 
 
 
 

704. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

706. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

707. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

710. Absorptive nutrition is:

 
 
 
 

711. Select the correct statement: (NEET 2016)

 
 
 
 

712. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

715. The teeth of peristome of Funaria are :

 
 
 
 

716. The disease symptom necrosis refers to :

 
 
 
 

717. Meiosis in Ulothrix takes place:

 
 
 
 

718. Citrus canker is caused by :

 
 
 
 

719. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

721. Acellular slime mold is/are:

 
 
 
 

722. Viruses are considered to be:

 
 
 
 

723. Embryo formation is not known in :

 
 
 
 

724. Germ theory of disease was proposed by:

 
 
 
 

725. Which is a redwood tree?

 
 
 
 

726. Pythium debaryanum is the causative agent of:

 
 
 
 

727. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

731. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

733. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

737. Heterotrichous habit means :

 
 
 
 

738. The development of sporangium in Selaginella is:

 
 
 
 

739. Number of capsomeres forming capsid of TMV is:

 
 
 
 

740. Plasmids are:

 
 
 
 

741. Bacteria growing on synthetic medium are called:

 
 
 
 

742. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

744. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

746. The antibiotic is obtained from:

 
 
 
 

747. Virion refers to:

 
 
 
 

748. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

750. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

751. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. The sporophyte of Riccia is :

 
 
 
 

755. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

759. Most primitive group of vascular plants are:

 
 
 
 

760. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

767. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

769. Usually, bacteria reproduce by:

 
 
 
 

770. Pseudomycelium is found in:

 
 
 
 

771. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

773. The photosynthetic protists are:

 
 
 
 

774. Broad spectrum antibiotic is, which:

 
 
 
 

775. Which lichen is called Reindeer moss?

 
 
 
 

776. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

778. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

780. Yeast belongs to class:

 
 
 
 

781. Which of the following statements is not correct?

 
 
 
 

782. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

785. Bentham and Hooker placed gymnosperms:

 
 
 
 

786. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

789. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

793. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

800. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

802. In Funaria :

 
 
 
 

803. The two conjugating gametangia of Rhizopus are:

 
 
 
 

804. Placenta in fern is:

 
 
 
 

805. What is streptomycin?

 
 
 
 

806.

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

 
 
 
 

808. Typhoid in man is caused by:

 
 
 
 

809. Embryophyta includes :

 
 
 
 

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

 
 
 
 

811. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

812. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

814. The alga, Spirogyra are found in :

 
 
 
 

815. Maximum diversity of life forms occurs in :

 
 
 
 

816. All protozoans possess:

 
 
 
 

817. First animal pathogenic virus was discovered by:

 
 
 
 

818. Lichens are the indicator of pollution :

 
 
 
 

819. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

823. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

826. Heterospory is the production of:

 
 
 
 

827. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

829. How a fern differs from a moss?

 
 
 
 

830. Red rot of sugarcane is caused by :

 
 
 
 

831. Green plants are classified as:

 
 
 
 

832. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

833. Which of the following are included in Tracheophyta?

 
 
 
 

834. Virus and bacteriophage are made-up of:

 
 
 
 

835. Who discovered heterothallism in fungi?

 
 
 
 

836. Seeds are characteristically found in:

 
 
 
 

837. 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?

 
 
 
 

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

 
 
 
 

839. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

841. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

843. 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:

 
 
 
 

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

 
 
 
 

845. Ovules are not found enclosed in ovary of:

 
 
 
 

846. Cryptogams include :

 
 
 
 

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

 
 
 
 

848. Which of the following is sago palm?

 
 
 
 

849. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

850. The group algae possesses representatives belonging to kingdom:

 
 
 
 

851. In Selaginella, the microsporangia are:

 
 
 
 

852. The gametophyte produced by apospory is :

 
 
 
 

853. Funaria can be differentiated from Cycas :

 
 
 
 

854. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

857. 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:

 
 
 
 

858. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

859. Isomorphic type alternation of generation is found in:

 
 
 
 

860. Chemosynthetic bacteria are:

 
 
 
 

861. Cap cells are found in the filament of:

 
 
 
 

862. Genetic material of TMV is:

 
 
 
 

863. Nitrogen-fixing bacteria may be located:

 
 
 
 

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