Quiz_Random

1. Which is the nuclear material in bacteria?

 
 
 
 

2. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

10. The archegonia of Selaginella are differentiated by:

 
 
 
 

11. E coli is a:

 
 
 
 

12. Liverworts are included in :

 
 
 
 

13. Spermatophyta are characterized by producing:

 
 
 
 

14. Acetobacter is useful in:

 
 
 
 

15. Aflatoxin is produced by:

 
 
 
 

16. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

18. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Roots are absent in :

 
 
 
 

23. The Rhizopus gametes are formed in:

 
 
 
 

24. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

26. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

28. In moss, reduction division occurs in :

 
 
 
 

29. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. 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:

 
 
 
 

33. Climbers are found in genus:

 
 
 
 

34. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

36. Infective part of virus was discovered by:

 
 
 
 

37. Oswald Tippo’s classification is:

 
 
 
 

38. Embryophyta includes :

 
 
 
 

39. The prothallus of fern represents the plant:

 
 
 
 

40. LSD is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

54. The tree fern is:

 
 
 
 

55. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Heterosporous pteridophytes always form:

 
 
 
 

66. The fungi used as food are:

 
 
 
 

67. Seeds are characteristically found in:

 
 
 
 

68. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

70. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

72. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

74. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Fruits are not found in :

 
 
 
 

82. Which of the following have a prokaryotic cell?

 
 
 
 

83. Fern prothallus produces:

 
 
 
 

84. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. All algae have:

 
 
 
 

88. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Which is a tautonym?

 
 
 
 

92. In Gymnocarpeae the fruiting body is :

 
 
 
 

93.

 

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

 
 
 
 

95. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

100. In moss, calyptra is formed from:

 
 
 
 

101. In Gymnosperms endosperm is a:

 
 
 
 

102. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

104. Which is a fungicide?

 
 
 
 

105. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

107. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

109. Kuru, a human disease is caused by:

 
 
 
 

110. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

113. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. Most primitive kind of flower is represented by:

 
 
 
 

119. The antherozoids of Funaria are :

 
 
 
 

120. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

126. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

128. The zygospore in Rhizopus on germination forms:

 
 
 
 

129. The two conjugating gametangia of Rhizopus are:

 
 
 
 

130. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

132. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

134. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

136. The rhizoids of Funaria are :

 
 
 
 

137. In moss, peristomial teeth are:

 
 
 
 

138. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

140. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

142. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

144. Milk is converted to curd by:

 
 
 
 

145. The central part of Funaria axis is :

 
 
 
 

146. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. How is moss different from fern?

 
 
 
 

150. In a diplontic life cycle:

 
 
 
 

151. In Cycas microsporangia are borne on:

 
 
 
 

152. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

155. Ectocarpus produces:

 
 
 
 

156. Placenta in fern is:

 
 
 
 

157. Viruses are considered to be:

 
 
 
 

158. The sori in Dryopteris are found on:

 
 
 
 

159. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

160. Which part of Riccia bears nurse cells?

 
 
 
 

161. Small epidermal swellings due to infection are called :

 
 
 
 

162. The DNA of E coli is:

 
 
 
 

163. 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?

 
 
 
 

164. Which of the following statement is correct?

 
 
 
 

165. Antibiotic has been extracted from :

 
 
 
 

166. Smut of maize is caused by :

 
 
 
 

167. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

169. The phloem of vascular system of Cycas is :

 
 
 
 

170. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

172. Etiology includes the study of :

 
 
 
 

173. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

177. In Funaria :

 
 
 
 

178. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

181. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

185. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

190. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

192. The leaves of Funaria are :

 
 
 
 

193. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

195. Some biologists have used the term Mycetozoa for:

 
 
 
 

196. Ovary is absent in :

 
 
 
 

197. Heterospory and ligulate leaves are a feature of:

 
 
 
 

198. What is special feature of fern archegonia?

 
 
 
 

199. Mycoplasma are:

 
 
 
 

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

 
 
 
 

201. Indusium in Dryopteris is:

 
 
 
 

202. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

204. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

206. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

208. Green plants are classified as:

 
 
 
 

209. In moss, conducting tissue is made up of

 
 
 
 

210. Ovules are not found enclosed in ovary in :

 
 
 
 

211. Lichens are the indicator of pollution :

 
 
 
 

212. The fungi are usually:

 
 
 
 

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

 
 
 
 

214. Why is Cycas called a living fossil?

 
 
 
 

215. Standard size of a herbarium sheet is:

 
 
 
 

216. Which lichen is called Reindeer moss?

 
 
 
 

217. Mycoplasma is different from bacteria due to:

 
 
 
 

218. The ferns are usually found:

 
 
 
 

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

 
 
 
 

220. Select the wrong statement:

 
 
 
 

221. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

223. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

226. Maximum diversity of life forms occurs in :

 
 
 
 

227. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

233. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

235. Germination of the seed of Pinus is :

 
 
 
 

236. The first to isolate a plant virus was:

 
 
 
 

237. Heterospory is the production of:

 
 
 
 

238.

239. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

241. The plants of Funaria grow :

 
 
 
 

242. Late blight of potato is caused by :

 
 
 
 

243. Which bacteria convert nitrate into nitrogen?

 
 
 
 

244. In angiosperms double fertilization represents:

 
 
 
 

245. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

247. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

249. Common phycobiont in a lichen is :

 
 
 
 

250. NBG of Lucknow is now named as:

 
 
 
 

251. Heterotrichous habit means :

 
 
 
 

252. Lichens are indicators of :

 
 
 
 

253. Winged seeds are found in :

 
 
 
 

254. The roots of Cycas are :

 
 
 
 

255. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

256. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

258. The chloroplast in Ulothrix is :

 
 
 
 

259. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

261. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

262. Which of the following are included in Tracheophyta?

 
 
 
 

263. Plasmids are:

 
 
 
 

264. Pinus is:

 
 
 
 

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

 
 
 
 

266. 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:

 
 
 
 

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

 
 
 
 

268. Cycas is similar to a mustard plant :

 
 
 
 

269. Most common type of conjugation in Spirogyra is :

 
 
 
 

270. Little leaf disease of Brinjal is caused by:

 
 
 
 

271. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

277. Viruses are commonly transmitted in plants through:

 
 
 
 

278. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

280. Early blight of potato is caused by:

 
 
 
 

281. The smallest unit of classification is:

 
 
 
 

282. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

286. In Funaria, calyptra is derived from :

 
 
 
 

287. Leprosy is caused by:

 
 
 
 

288. Which of the following shows heterotrichous habit?

 
 
 
 

289. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

291. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

292. Lichens show :

 
 
 
 

293. The leaves of Funaria are :

 
 
 
 

294. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

297. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

301. Sexual reproduction in Rhizopus is by:

 
 
 
 

302. Funaria can be differentiated from Cycas :

 
 
 
 

303. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

305. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

307. The gametophyte of fern bears:

 
 
 
 

308. Yeast grows more rapidly in:

 
 
 
 

309. Which is not true for Escherichia coli?

 
 
 
 

310. Bacteria which are spherical are called:

 
 
 
 

311. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

317. Majority of lichens are :

 
 
 
 

318. Photoautotrophic bacteria have:

 
 
 
 

319. Mycoplasma was discovered by:

 
 
 
 

320. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

322. The genetic material of poxvirus is:

 
 
 
 

323. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

325. The group algae possesses representatives belonging to kingdom:

 
 
 
 

326. Bivalved siliceous shell or frustule occur in:

 
 
 
 

327. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

329. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

333. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

337. Absorptive nutrition is:

 
 
 
 

338. Cryptogams include :

 
 
 
 

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

 
 
 
 

340. Yeast is a source of:

 
 
 
 

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

 
 
 
 

342. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

343. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

345. Cell walls of Gram-positive bacteria contain:

 
 
 
 

346. Ergot of rye is caused by:

 
 
 
 

347. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

349. Meiosis in Ulothrix takes place:

 
 
 
 

350. Vascular tissue is found in :

 
 
 
 

351. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

353. Cellular slime mold is:

 
 
 
 

354. The role of meiosis is for:

 
 
 
 

355. Number of capsomeres forming capsid of TMV is:

 
 
 
 

356. Economic importance of bacteria lies in their being:

 
 
 
 

357. Select the wrong statement:

 
 
 
 

358. Most of the algae are :

 
 
 
 

359. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

361. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

363. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

366. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

369. Who among the following discovered virus?

 
 
 
 

370. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

372. Seeds are characteristically found in :

 
 
 
 

373. The coralloid roots are :

 
 
 
 

374. The most important property of yeast is:

 
 
 
 

375. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

377. The development of sporangium in Selaginella is:

 
 
 
 

378. Generic name of mango is:

 
 
 
 

379. Gymnosperms could also be called as:

 
 
 
 

380. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

382. The fungi are mostly:

 
 
 
 

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

 
 
 
 

384. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

388. The disease apple scab is caused by:

 
 
 
 

389. Total parasites belong to:

 
 
 
 

390. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

393. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

396. 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?

 
 
 
 

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

 
 
 
 

398. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

400. Lichens reproduce by :

 
 
 
 

401. Most appropriate word for protozoans is:

 
 
 
 

402. The archegonia in Selaginella develop on:

 
 
 
 

403. Usually, bacteria reproduce by:

 
 
 
 

404. Red rot of sugarcane is caused by :

 
 
 
 

405. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

406. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

410. Genetic material of TMV is:

 
 
 
 

411. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414. Leaf spot of groundnut is caused by :

 
 
 
 

415. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

422. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

424. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

427. The vascular bundles of Cycas stem are :

 
 
 
 

428. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

434. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

439. Pasteurized milk is:

 
 
 
 

440. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

443. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

445. Simple polyembryony is found in :

 
 
 
 

446. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

451. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

453. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

458. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

460. Ovary is absent in:

 
 
 
 

461. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

463. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

465. Pseudomycelium is found in:

 
 
 
 

466. Cycas is:

 
 
 
 

467. The disease symptom necrosis refers to :

 
 
 
 

468. Ergot is obtained from :

 
 
 
 

469. Which one of the following statement is wrong?

 
 
 
 

470. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. The spur of Pinus roxburghii has :

 
 
 
 

475. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

477. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

479. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

481. 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:

 
 
 
 

482. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

486. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

489. Water-borne bacterial diseases are:

 
 
 
 

490. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

492. Lichens form the first community in

 
 
 
 

493. Penicillin is obtained from:

 
 
 
 

494. Proembryo in Pinus is :

 
 
 
 

495. Reproduction in Cycas takes place by :

 
 
 
 

496. The order generally ends with:

 
 
 
 

497. The seedless plants which possess vascular tissues are:

 
 
 
 

498. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

501. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

509. Which causes red tide?

 
 
 
 

510. Facultative parasite is:

 
 
 
 

511. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

513. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

516. Funaria is :

 
 
 
 

517. Viruses have:

 
 
 
 

518. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

520. The male gametes of Pinus are :

 
 
 
 

521. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

523. 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?

 
 
 
 

524. Protistan algae obtain their food as:

 
 
 
 

525. Club moss is the common name of :

 
 
 
 

526. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

529. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

531. Pinus gerardiana is :

 
 
 
 

532. Cycas is :

 
 
 
 

533. Detailed study of bacteriophage was made by:

 
 
 
 

534. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

535. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

538. Pteridophyta are also called:

 
 
 
 

539. Which of the following is sago palm?

 
 
 
 

540. The flagella of Chlamydomonas are:

 
 
 
 

541. Smallpox is caused by:

 
 
 
 

542. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

544. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

546. Bacteria were first discovered by:

 
 
 
 

547. Downy mildew disease is caused by :

 
 
 
 

548. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

552. Azolla and Salvinia both are:

 
 
 
 

553. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

555. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

558. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

559. Most resistant spore in bacteria is:

 
 
 
 

560. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

561. Reproduction in Rhizopus is:

 
 
 
 

562. 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:

 
 
 
 

563. Streptomyces falls under:

 
 
 
 

564. The chief characteristic of bryophyta is that :

 
 
 
 

565. Sometimes the bacterial cell is enclosed in:

 
 
 
 

566. The fungi that grow on wood are called:

 
 
 
 

567. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. Where does meiosis occur in yeast?

 
 
 
 

573. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

577. Diploxylic vascular bundles are found in:

 
 
 
 

578. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

582. Botulism is a:

 
 
 
 

583. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

586. Which class of Protozoa includes all parasitic forms?

 
 
 
 

587. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

592. Green plants are classified as :

 
 
 
 

593. Viroids have:

 
 
 
 

594. Endemic plants are characterised by their:

 
 
 
 

595. Saccharomyces is used in:

 
 
 
 

596. Oswald Tippo’s classification was based on :

 
 
 
 

597. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

600. Which of the following is true for Selaginella?

 
 
 
 

601. Amoeba is a member of the phylum:

 
 
 
 

602. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

604. White rust of crucifers is caused by:

 
 
 
 

605. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

607. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

609. Enteric bacteria are those bacteria that live:

 
 
 
 

610. In binomial system most of the words are:

 
 
 
 

611. Cap cells are found in the filament of:

 
 
 
 

612. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

615. The antibiotic is obtained from:

 
 
 
 

616. Gametophyte is the main plant body in :

 
 
 
 

617. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

622. Some diseases caused by bacteria are:

 
 
 
 

623. What is streptomycin?

 
 
 
 

624. Black rust of wheat is caused by:

 
 
 
 

625. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

626. Which is absent from the xylem of Cycas?

 
 
 
 

627.

628. Pneumonia is caused by:

 
 
 
 

629. Black rust of wheat is caused by:

 
 
 
 

630. Spermatophyta are characterized by producing:

 
 
 
 

631. Sleeping sickness disease in man is caused by:

 
 
 
 

632. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

635. Male gametophyte of Selaginella is found:

 
 
 
 

636. Bentham and Hooker placed gymnosperms:

 
 
 
 

637. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

640. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

642. In a bacteriophage, DNA is present in:

 
 
 
 

643. Most of the lichens are composed of :

 
 
 
 

644. Pythium debaryanum is the causative agent of:

 
 
 
 

645. Triple antigen injection or vaccine are for:

 
 
 
 

646. Which of the following is a heterosporous pteridophyte?

 
 
 
 

647. Special feature of pollen grains of Pinus is :

 
 
 
 

648. Meristele of fern is:

 
 
 
 

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

 
 
 
 

650. Pythium debaryanum is the causative agent of:

 
 
 
 

651. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

655. Saccharomyces ludwigii ascus produces:

 
 
 
 

656. Reserve food in Euglena is:

 
 
 
 

657. Ulothrix produces :

 
 
 
 

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

 
 
 
 

659. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

661. The source of litmus is :

 
 
 
 

662. Embryophyta includes:

 
 
 
 

663. Helotism word is used for the symbiosis between :

 
 
 
 

664. The leafy fern plant represents the:

 
 
 
 

665. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

667. Pinus microsporophyll bears:

 
 
 
 

668. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

670. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

671. Mycoplasmas are not viruses in nature because:

 
 
 
 

672. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

678. Each chloroplast in Spirogyra bears :

 
 
 
 

679. Fern plants are:

 
 
 
 

680. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

681. The leaf of Cycas shows:

 
 
 
 

682. Pteridophytes are also known as :

 
 
 
 

683.

684. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

687. Bacteria growing on synthetic medium are called:

 
 
 
 

688. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

690. Male gametes in Dryopteris are:

 
 
 
 

691. Sexual reproduction of lichen is due to :

 
 
 
 

692. Fruits are not found in:

 
 
 
 

693. Disease resistant plant varieties can be produced by :

 
 
 
 

694. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

696. Ovules are not found enclosed in ovary in :

 
 
 
 

697. The similarity between cyanobacteria and bacteria:

 
 
 
 

698. Embryo formation is not known in :

 
 
 
 

699. Discovery of penicillin was based on:

 
 
 
 

700. Rice, pea, potato are :

 
 
 
 

701. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

702. 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:

 
 
 
 

703. The gametophyte produced by apospory is :

 
 
 
 

704. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

706. Pollination drop is:

 
 
 
 

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

 
 
 
 

708. To which class Riccia belongs :

 
 
 
 

709. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

713. What are plasmids?

 
 
 
 

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

 
 
 
 

715. Siphonogamy is found in:

 
 
 
 

716. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

718. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

720. Lichens are pioneers of vegetation in a :

 
 
 
 

721. Halophiles are the bacteria that require for growth:

 
 
 
 

722. The fern plant is:

 
 
 
 

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

 
 
 
 

724. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. Mostly type of zygospore in Ulothrix is:

 
 
 
 

730. Funaria is :

 
 
 
 

731. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

735. Spirogyra represents the :

 
 
 
 

736. Germ theory of disease was proposed by:

 
 
 
 

737. In tracheophyta:

 
 
 
 

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

 
 
 
 

739. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

741. In Cycas which structure is equivalent to stamen?

 
 
 
 

742. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

744. Lichen show :

 
 
 
 

745. TMV was isolated in crystalline form by:

 
 
 
 

746. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

749. The teeth of peristome of Funaria are :

 
 
 
 

750. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

752. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

753. The lichens growing on rocks are called :

 
 
 
 

754. What is a vector?

 
 
 
 

755. The stele of Dryopteris is a:

 
 
 
 

756. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

761. Which is an exception to cell theory?

 
 
 
 

762. Chemosynthetic bacteria are:

 
 
 
 

763. What is mycorrhiza?

 
 
 
 

764. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

766. Cycas plant in appearance resembles :

 
 
 
 

767. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

768. What is absent in Deuteromycetes?

 
 
 
 

769. Who named prion?

 
 
 
 

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

 
 
 
 

771. 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:

 
 
 
 

772. Which of the following have algal zone?

 
 
 
 

773. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

776. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

778. Methanogens belong to:

 
 
 
 

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

 
 
 
 

780. Fairy ring is the name given to:

 
 
 
 

781. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. The prothallus of fern is:

 
 
 
 

785. The term stele was given by:

 
 
 
 

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

 
 
 
 

787. Which group of algae have an incipient nucleus?

 
 
 
 

788. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

791. Pollination in Pinus is :

 
 
 
 

792. All protozoans possess:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

795. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

797. Coenogamete is found in:

 
 
 
 

798. John Hutchinson divided dicots into two divisions:

 
 
 
 

799. Cyathia is characterized by:

 
 
 
 

800. Cocci types of bacteria are:

 
 
 
 

801. The truncated cone of HIV consists of:

 
 
 
 

802. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

804. In dinoflagellates, the two flagella are:

 
 
 
 

805. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

807. Water bloom is generally caused by :

 
 
 
 

808. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

810. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

813. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

817. Heterocysts are found in :

 
 
 
 

818. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

820. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

823. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

826. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

827. True sexuality is not found in:

 
 
 
 

828. Mycoplasma are sensitive to:

 
 
 
 

829. Red rot of sugarcane is caused by:

 
 
 
 

830. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

831. Psilotum is:

 
 
 
 

832. In moss, sporophyte is formed on:

 
 
 
 

833. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

835. The lambda phase is a:

 
 
 
 

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

 
 
 
 

837. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

841. Most primitive embryophytes are placed in:

 
 
 
 

842. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

844. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

846. Which of the following is true for viruses?

 
 
 
 

847. Broad spectrum antibiotic is, which:

 
 
 
 

848. The sexual reproductive organs in Rhizopus are:

 
 
 
 

849. Most primitive embryophytes are placed in :

 
 
 
 

850. 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:

 
 
 
 

851. Bryophyta have been placed in cryptogams because:

 
 
 
 

852. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

855. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

856. Club moss and Peat moss belong to:

 
 
 
 

857. Which have the largest antherozoid?

 
 
 
 

858. In moss, stomata are found:

 
 
 
 

859. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

861. The chromosomal number in:

 
 
 
 

862. The microsporophylls on the cone of Cycas are :

 
 
 
 

863. Anoxygenic photosynthesis occurs in:

 
 
 
 

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