Quiz_Random

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

 
 
 
 

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

 
 
 
 

3. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Ovary is absent in :

 
 
 
 

8. Infective part of virus was discovered by:

 
 
 
 

9. 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:

 
 
 
 

10. Which one of the following is a monocot?

 
 
 
 

11. Oswald Tippo’s classification is:

 
 
 
 

12. Botulism is a:

 
 
 
 

13. Which of the following shows heterotrichous habit?

 
 
 
 

14. Broad spectrum antibiotic is, which:

 
 
 
 

15. Germination of the seed of Pinus is :

 
 
 
 

16. Who discovered cyanophages?

 
 
 
 

17. Maximum diversity of life forms occurs in :

 
 
 
 

18. Cocci types of bacteria are:

 
 
 
 

19. The megasporangium of Selaginella is:

 
 
 
 

20. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

22. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

24. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. 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:

 
 
 
 

28. Diploxylic vascular bundles are found in:

 
 
 
 

29. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

31. Aflatoxin is produced as a product in :

 
 
 
 

32. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Viruses are commonly transmitted in plants through:

 
 
 
 

36. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

38. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

39. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

41. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

43. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

45. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

47. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

48. The smallest bacterium is:

 
 
 
 

49. 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?

 
 
 
 

50. Which of the following is sago palm?

 
 
 
 

51. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

53. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

55. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

57. The lambda phase is a:

 
 
 
 

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

 
 
 
 

59. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

62. Standard size of a herbarium sheet is:

 
 
 
 

63. Viruses are considered to be:

 
 
 
 

64. Psilotum is:

 
 
 
 

65. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

68. . Tapetum develops in:

 
 
 
 

69. The central part of Funaria axis is :

 
 
 
 

70. Lichen show :

 
 
 
 

71. What are plasmids?

 
 
 
 

72. Nitrifying bacteria play an important role by converting:

 
 
 
 

73. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. In Funaria, calyptra is derived from :

 
 
 
 

77. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

79. Saccharomyces is used in:

 
 
 
 

80. Gymnosperms could also be called as:

 
 
 
 

81. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

83. Protozoans are considered animals because these are:

 
 
 
 

84. Which of the following statement is correct?

 
 
 
 

85. Spermatophyta are characterized by producing:

 
 
 
 

86. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. Citrus canker is caused by:

 
 
 
 

90. Bacteria are placed under:

 
 
 
 

91. Viruses have:

 
 
 
 

92. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

102. The prothallus of fern represents the plant:

 
 
 
 

103. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

105. Bryophyta have a special character from other plants:

 
 
 
 

106. What are Cyanobacteria?

 
 
 
 

107. In moss, stomata are found:

 
 
 
 

108. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

110. Mycoplasma contains:

 
 
 
 

111. Simple polyembryony is found in :

 
 
 
 

112. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

114. Aflatoxin is produced by:

 
 
 
 

115. Ginkgo biloba is a:

 
 
 
 

116. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

117. The vascular bundles of Cycas stem are :

 
 
 
 

118. Economic importance of bacteria lies in their being:

 
 
 
 

119. The upper region of moss capsule is :

 
 
 
 

120. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

122. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

126. Lichens show :

 
 
 
 

127. Meristele of fern is:

 
 
 
 

128. Plasmids are:

 
 
 
 

129. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

131. 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:

 
 
 
 

132. Which condition is found in Cycas?

 
 
 
 

133. Which is a gametophytic tissue?

 
 
 
 

134. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

139. In Cycas:

 
 
 
 

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

 
 
 
 

141. Embryo formation is not known in :

 
 
 
 

142. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

144. Funaria is :

 
 
 
 

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

 
 
 
 

146. Bivalved siliceous shell or frustule occur in:

 
 
 
 

147. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

149. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

151. In moss, conducting tissue is made up of

 
 
 
 

152. Ovules are not found enclosed in ovary of:

 
 
 
 

153. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

155. Mycoplasma are sensitive to:

 
 
 
 

156. What is mycorrhiza?

 
 
 
 

157.

158. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

160. Virus and bacteriophage are made-up of:

 
 
 
 

161. Detailed study of bacteriophage was made by:

 
 
 
 

162. The DNA of E coli is:

 
 
 
 

163. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

165. Antibiotics cure the disease by:

 
 
 
 

166. Azolla growing in paddy fields helps in:

 
 
 
 

167. Wine turns sour because of:

 
 
 
 

168. Bacteriophage consists of:

 
 
 
 

169. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

172. Enzymes are absent in:

 
 
 
 

173. Yeast belongs to class:

 
 
 
 

174. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

176. The most important property of yeast is:

 
 
 
 

177. Usually, bacteria reproduce by:

 
 
 
 

178. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

180. Cycas is :

 
 
 
 

181. The first to isolate a plant virus was:

 
 
 
 

182. The teeth of peristome of Funaria are :

 
 
 
 

183. Mucilaginous canals in Cycas are found in :

 
 
 
 

184. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

190. Male gametes in Dryopteris are:

 
 
 
 

191. Oswald Tippo’s classification was based on :

 
 
 
 

192. What is streptomycin?

 
 
 
 

193. The leaf of Cycas shows:

 
 
 
 

194. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

198. Which part of Riccia bears nurse cells?

 
 
 
 

199. The archegonia of Selaginella are differentiated by:

 
 
 
 

200. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

202. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

205. 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?

 
 
 
 

206. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

208. Which is absent from the xylem of Cycas?

 
 
 
 

209. Rhizoids of Riccia are :

 
 
 
 

210. The chloroplast in Ulothrix is :

 
 
 
 

211. Fern prothallus is:

 
 
 
 

212.

213. Which of the following is true for viruses?

 
 
 
 

214. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

216. Vascular cryptogam is the term used for :

 
 
 
 

217. Seeds are characteristically found in:

 
 
 
 

218. White rust of crucifers is caused by:

 
 
 
 

219. A gill of Agaricus:

 
 
 
 

220. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

221. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

224. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

228. Rice, pea, potato are :

 
 
 
 

229. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

234. Rhizopus and yeast are usually:

 
 
 
 

235. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

237. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

239. Mycoplasma are:

 
 
 
 

240. Which of the following are included in Tracheophyta?

 
 
 
 

241. Which of the following have a prokaryotic cell?

 
 
 
 

242. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

244. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

251. Lichens are ecologically important because :

 
 
 
 

252. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

254. Methanogens belong to:

 
 
 
 

255. Winged seeds are found in :

 
 
 
 

256. Acetobacter is useful in:

 
 
 
 

257. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

259. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

264. Nannandria are:

 
 
 
 

265. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

267. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

269. The middle sterile part of capsule is called:

 
 
 
 

270. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

274. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

278. Gram stain is used to:

 
 
 
 

279. Which have the largest antherozoid?

 
 
 
 

280. Which of the following is a parasitic algae?

 
 
 
 

281. Saccharomyces is well known for:

 
 
 
 

282. Roots are absent in :

 
 
 
 

283. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

290. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

293. The orders generally have the uniform endings:

 
 
 
 

294. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

296. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

301. Black rust of wheat is caused by:

 
 
 
 

302. Embryophyta includes :

 
 
 
 

303. The sexual reproductive organs in Rhizopus are:

 
 
 
 

304. Siphonogamy is found in:

 
 
 
 

305. Who named prion?

 
 
 
 

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

 
 
 
 

307. Which is a fungicide?

 
 
 
 

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

 
 
 
 

309. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

311. Sexual reproduction in Rhizopus is by:

 
 
 
 

312. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

314. Fern prothallus produces:

 
 
 
 

315. Late blight of potato is caused by:

 
 
 
 

316. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. Most appropriate word for protozoans is:

 
 
 
 

320. Club moss is the common name of :

 
 
 
 

321. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

323. 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:

 
 
 
 

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

 
 
 
 

325. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

327. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. Most resistant spore in bacteria is:

 
 
 
 

333. Cycas plant in appearance resembles :

 
 
 
 

334. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

336. Metulae are found in:

 
 
 
 

337. Facultative parasite is:

 
 
 
 

338. The coralloid roots are :

 
 
 
 

339. In moss, calyptra is formed from:

 
 
 
 

340. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

345. Bacteria were first discovered by:

 
 
 
 

346. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

347. Which causes red tide?

 
 
 
 

348. The tree fern is:

 
 
 
 

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. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

353. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

355. Clostridium can:

 
 
 
 

356. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

359. Pinus gerardiana is :

 
 
 
 

360. Select the wrong statement:

 
 
 
 

361. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. Which is the nuclear material in bacteria?

 
 
 
 

365. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

367. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

369. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

373. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

375. The prothallus of fern is:

 
 
 
 

376. Bacteria which are spherical are called:

 
 
 
 

377. Bacteriophages have been used as:

 
 
 
 

378. Chemosynthetic bacteria are:

 
 
 
 

379. The development of Selaginella embryo is:

 
 
 
 

380. Water-net is the name of:

 
 
 
 

381. The disease symptom necrosis refers to :

 
 
 
 

382. Iodine is obtained from:

 
 
 
 

383. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

385. Select the wrong statement:

 
 
 
 

386. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

389. The largest alga is:

 
 
 
 

390. Cyanophage is a virus that attacks:

 
 
 
 

391. LSD is:

 
 
 
 

392. What is a vector?

 
 
 
 

393. Which of the following are absent in Mycoplasma?

 
 
 
 

394. The largest known bacterium is:

 
 
 
 

395. Pteridophytes are also known as :

 
 
 
 

396. Sexual reproduction of lichen is due to :

 
 
 
 

397. The megaspore of Selaginella on germination produces:

 
 
 
 

398. Multicellular and jacketed sex organs are found in :

 
 
 
 

399. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

400. 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:

 
 
 
 

401. Cleavage polyembryony is found in :

 
 
 
 

402. Some diseases caused by bacteria are:

 
 
 
 

403. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

405. Who discovered streptomycin?

 
 
 
 

406. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

409. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

412. Late blight of potato is caused by :

 
 
 
 

413. Yeast is a source of:

 
 
 
 

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

 
 
 
 

415. Heterotrichous habit means :

 
 
 
 

416. Pythium debaryanum is the causative agent of:

 
 
 
 

417. Which is a tautonym?

 
 
 
 

418. Bacteria growing on synthetic medium are called:

 
 
 
 

419. Pollination in Cycas takes place by :

 
 
 
 

420. Which bacteria convert nitrate into nitrogen?

 
 
 
 

421. Cap cells are found in the filament of:

 
 
 
 

422. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

425. The sporangium of fern contains nearly:

 
 
 
 

426. The group algae possesses representatives belonging to kingdom:

 
 
 
 

427. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

429. Red rot of sugarcane is caused by:

 
 
 
 

430. Photosynthetic bacteria have:

 
 
 
 

431. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

438. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

441. Funaria are commonly found :

 
 
 
 

442. The genetic material of poxvirus is:

 
 
 
 

443. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

445. The alga, Spirogyra are found in :

 
 
 
 

446. Spirogyra differs from moss protonema in having :

 
 
 
 

447. Most primitive group of vascular plants are:

 
 
 
 

448. Sleeping sickness disease in man is caused by:

 
 
 
 

449. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

453. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

457. Leprosy is caused by:

 
 
 
 

458. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

459. Lichens are indicators of :

 
 
 
 

460. Which of the following are included in Tracheophyta?

 
 
 
 

461. The two conjugating gametangia of Rhizopus are:

 
 
 
 

462. In Pteris, the archegonia are present:

 
 
 
 

463. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

464. Vegetative reproduction in Cycas is by means of :

 
 
 
 

465. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

467. The disease apple scab is caused by:

 
 
 
 

468. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

472. What is absent in Deuteromycetes?

 
 
 
 

473. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

477. Synzoospore is produced in:

 
 
 
 

478. Green plants are classified as:

 
 
 
 

479. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

486. True sexuality is not found in:

 
 
 
 

487. Which is not found in bacteria?

 
 
 
 

488. Water-borne bacterial diseases are:

 
 
 
 

489. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

491. Some bacteria cannot be killed easily because of:

 
 
 
 

492. Tautonyms are illegitimate in:

 
 
 
 

493. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

496. Bacteria are found everywhere, except:

 
 
 
 

497. In Pteris, the roots are:

 
 
 
 

498. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

502. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

504. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

510. Each chloroplast in Spirogyra bears :

 
 
 
 

511. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514. The antherozoids of Funaria are :

 
 
 
 

515. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

517. The gametophyte of fern is as:

 
 
 
 

518. Cell walls of Gram-positive bacteria contain:

 
 
 
 

519. 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:

 
 
 
 

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

 
 
 
 

521. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

523. Lichens are the indicator of pollution :

 
 
 
 

524. Parmelia belongs to :

 
 
 
 

525. Soil fertility is lost by the activities of:

 
 
 
 

526. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

528. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

539. In Funaria :

 
 
 
 

540. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

545. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

548. Male gametophyte of Selaginella is found:

 
 
 
 

549. Selaginella differs from Moss in having:

 
 
 
 

550. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

552. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

555. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

557. The plants of Funaria grow :

 
 
 
 

558. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

560. Funaria is :

 
 
 
 

561. Downy mildew disease is caused by :

 
 
 
 

562. In moss, sporogenous tissue arises from:

 
 
 
 

563. The chromosomal number in:

 
 
 
 

564. Fruits are not found in:

 
 
 
 

565. Facultative saprophyte is:

 
 
 
 

566. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

568. In Gymnocarpeae the fruiting body is :

 
 
 
 

569. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

571. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

573. Seeds are characteristically found in :

 
 
 
 

574. Lichens form the first community in

 
 
 
 

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

 
 
 
 

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

 
 
 
 

577. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

579. Photoautotrophic bacteria have:

 
 
 
 

580. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

583. Which is an exception to cell theory?

 
 
 
 

584. Chemosynthetic bacteria are:

 
 
 
 

585. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

589. An Hfr bacterium is one that contains:

 
 
 
 

590. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

592. All protozoans possess:

 
 
 
 

593. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

597. The fern plant is:

 
 
 
 

598. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. One of the distinctive feature of Spirogyra is :

 
 
 
 

603.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

607.

 

608. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

610. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

612. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

614. Viroids have:

 
 
 
 

615. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. Rhizophore of Selaginella is:

 
 
 
 

619. Majority of lichens are :

 
 
 
 

620. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

622. The leaves of Funaria are :

 
 
 
 

623. Embryophyta includes:

 
 
 
 

624. The tallest moss in the world is :

 
 
 
 

625. Typhoid in man is caused by:

 
 
 
 

626. Which of the following have algal zone?

 
 
 
 

627. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

629. Heterospory is the production of:

 
 
 
 

630. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. Sporophyte of Funaria is :

 
 
 
 

635. Botulinum toxin effects:

 
 
 
 

636. The fungi used as food are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

639. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

641. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

643. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

645. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

648. The chief characteristic of class Ascomycetes is:

 
 
 
 

649. Redness of red sea is due to :

 
 
 
 

650. Which class of Protozoa includes all parasitic forms?

 
 
 
 

651. Some biologists have used the term Mycetozoa for:

 
 
 
 

652. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

657. How is moss different from fern?

 
 
 
 

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

 
 
 
 

659. Helotism word is used for the symbiosis between :

 
 
 
 

660. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

662. The order generally ends with:

 
 
 
 

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

 
 
 
 

664. Ovules are not found enclosed in ovary in :

 
 
 
 

665. What is special feature of fern archegonia?

 
 
 
 

666. Cycas is:

 
 
 
 

667. Chief constituents of bordeaux mixture are :

 
 
 
 

668. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

669. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

671. Woody climbers are known as :

 
 
 
 

672. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

675. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

680. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

682. Virion refers to:

 
 
 
 

683. Longest known virus is:

 
 
 
 

684. Total parasites belong to:

 
 
 
 

685. Interferon is a:

 
 
 
 

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

 
 
 
 

687. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

688. Azolla and Salvinia both are:

 
 
 
 

689. Cryptogams include :

 
 
 
 

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

 
 
 
 

691. Which lichen is called Reindeer moss?

 
 
 
 

692. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

694. Absorptive nutrition is:

 
 
 
 

695. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

697. Which of the following does not contain chlorophyll?

 
 
 
 

698. The young leaves of Cycas have :

 
 
 
 

699. Streptomycin is obtained from:

 
 
 
 

700. Ergot is obtained from :

 
 
 
 

701. Which is not true for Escherichia coli?

 
 
 
 

702. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

704. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

710. Number of capsomeres forming capsid of TMV is:

 
 
 
 

711. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

712. Spermatophyta are characterized by producing:

 
 
 
 

713. The term stele was given by:

 
 
 
 

714. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

718. Leaf spot of groundnut is caused by :

 
 
 
 

719. Acellular slime mold is/are:

 
 
 
 

720. Pasteurized milk is:

 
 
 
 

721. Placenta in fern is:

 
 
 
 

722. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

724. Desired type of Cycas can be grown by:

 
 
 
 

725. The root nodules of leguminous plants contain:

 
 
 
 

726. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

728. Bryophyta have been placed in cryptogams because:

 
 
 
 

729. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

733. Fairy ring is the name given to:

 
 
 
 

734. Black rust of wheat is caused by:

 
 
 
 

735. The most primitive vascular plants is:

 
 
 
 

736. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

739. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

744. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

747. Where does meiosis occur in yeast?

 
 
 
 

748. Germ theory of disease was proposed by:

 
 
 
 

749. Discovery of penicillin was based on:

 
 
 
 

750. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

752. Funaria can be differentiated from Cycas :

 
 
 
 

753. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Most of the algae are :

 
 
 
 

758. Most primitive embryophytes are placed in:

 
 
 
 

759. E coli is a:

 
 
 
 

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

 
 
 
 

761. To which class Riccia belongs :

 
 
 
 

762. Winged pollen grains are found in :

 
 
 
 

763. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

765. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

767. Mycoplasma is different from bacteria due to:

 
 
 
 

768. The similarity between cyanobacteria and bacteria:

 
 
 
 

769. In tracheophyta:

 
 
 
 

770. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

772. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

774. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

778. Ulothrix produces :

 
 
 
 

779. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

782. Nitrogen-fixing bacteria may be located:

 
 
 
 

783. The seedless plants which possess vascular tissues are:

 
 
 
 

784. Isomorphic type alternation of generation is found in:

 
 
 
 

785. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

788. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

795. The sporangia of Selaginella are attached:

 
 
 
 

796. Which of the following lichens is harmful?

 
 
 
 

797. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

799. Choose the correct statement about Spirogyra:

 
 
 
 

800. Spirogyra represents the :

 
 
 
 

801. The Rhizopus is:

 
 
 
 

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

 
 
 
 

803. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

806. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

808. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

811. Photosynthetic protists belong to:

 
 
 
 

812. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. Linnaeus is credited with introducing:

 
 
 
 

816. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

820. The fungi are mostly:

 
 
 
 

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

 
 
 
 

822. The mode of nutrition of bacteria is usually:

 
 
 
 

823. Fern plants are:

 
 
 
 

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

 
 
 
 

825. Early blight of potato is caused by:

 
 
 
 

826. The antibiotic is obtained from:

 
 
 
 

827. Black rust of wheat is caused by:

 
 
 
 

828. Rhizopus belongs to:

 
 
 
 

829. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

832. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

834. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

836. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

838. Fern phloem lacks:

 
 
 
 

839. Amoeba is a member of the phylum:

 
 
 
 

840. In Cycas which structure is equivalent to stamen?

 
 
 
 

841. Anoxygenic photosynthesis occurs in:

 
 
 
 

842. NBG of Lucknow is now named as:

 
 
 
 

843. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

847. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. In Cycas microsporangia are borne on:

 
 
 
 

851. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

854. Polystelic condition is found in:

 
 
 
 

855. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

856. The gametophyte of fern bears:

 
 
 
 

857. Triple antigen injection or vaccine are for:

 
 
 
 

858. The nucleus of bacteria is:

 
 
 
 

859. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. Spores of which plants have chloroplast:

 
 
 
 

864. The leafy fern plant represents the: