Quiz_Random

1. Water-net is the name of:

 
 
 
 

2. In Funaria, calyptra is derived from :

 
 
 
 

3. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. The chloroplast of Chlamydomonas are:

 
 
 
 

7. Facultative saprophyte is:

 
 
 
 

8. Bacteria were first discovered by:

 
 
 
 

9. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

11. The source of litmus is :

 
 
 
 

12. Which of the following is a heterosporous pteridophyte?

 
 
 
 

13. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

15. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

16. Ovary is absent in :

 
 
 
 

17. Mycoplasmas are not viruses in nature because:

 
 
 
 

18. What are plasmids?

 
 
 
 

19. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

21. Mixed cropping helps :

 
 
 
 

22. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Banana bunchy top is caused by :

 
 
 
 

28. Water bloom is generally caused by :

 
 
 
 

29. Bacteriophage consists of:

 
 
 
 

30. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. In angiosperms double fertilization represents:

 
 
 
 

38. Leaf spot of groundnut is caused by :

 
 
 
 

39. Fern prothallus is:

 
 
 
 

40. The disease apple scab is caused by:

 
 
 
 

41. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

43. Selaginella differs from Moss in having:

 
 
 
 

44. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

46. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Which fixes atmospheric nitrogen?

 
 
 
 

50. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

55. What is mycorrhiza?

 
 
 
 

56. The tallest moss in the world is :

 
 
 
 

57. Bacteria are considered to be plants because they:

 
 
 
 

58. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

62. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Aflatoxin is produced as a product in :

 
 
 
 

66. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

68. Fern plants are:

 
 
 
 

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

 
 
 
 

70. Viruses are commonly transmitted in plants through:

 
 
 
 

71. Ovules are not found enclosed in ovary in :

 
 
 
 

72. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

74. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Acetobacter is useful in:

 
 
 
 

78. Interferon is a:

 
 
 
 

79. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

81. Which of the following are included in Tracheophyta?

 
 
 
 

82. Choose the correct statement about Spirogyra:

 
 
 
 

83. Which one of the following is a monocot?

 
 
 
 

84. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. The first to isolate a plant virus was:

 
 
 
 

88. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

90. Lichens form the first community in

 
 
 
 

91. The gametophyte of fern bears:

 
 
 
 

92. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

103. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

105. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

107. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

109. The chief characteristic of class Ascomycetes is:

 
 
 
 

110. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

113. Red rot of sugarcane is caused by :

 
 
 
 

114. Lichens reproduce by :

 
 
 
 

115. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

117. Club moss and Peat moss belong to:

 
 
 
 

118. In Cycas which structure is equivalent to stamen?

 
 
 
 

119. Broad spectrum antibiotic is, which:

 
 
 
 

120. Circular DNA is seen in:

 
 
 
 

121. 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?

 
 
 
 

122. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

124. Protists which are diploid reproduce sexually by:

 
 
 
 

125. Which organisms are the oldest life forms?

 
 
 
 

126. Yeast belongs to class:

 
 
 
 

127. First animal pathogenic virus was discovered by:

 
 
 
 

128. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

129. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

131. Chief constituents of bordeaux mixture are :

 
 
 
 

132. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

134. Photoautotrophic bacteria have:

 
 
 
 

135. Yeast grows more rapidly in:

 
 
 
 

136. Diploxylic vascular bundles are found in:

 
 
 
 

137. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

139. Which among the following is a shrub?

 
 
 
 

140. Yeast is a source of:

 
 
 
 

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

 
 
 
 

142. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

145. Plasmids are:

 
 
 
 

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

 
 
 
 

147. Cycas is different from mango in :

 
 
 
 

148. Cryptogams include :

 
 
 
 

149. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

151. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

158. The fern plant is:

 
 
 
 

159. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. Nitrogen-fixing bacteria may be located:

 
 
 
 

163. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

164. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

166. Mycoplasma are:

 
 
 
 

167. TMV was isolated in crystalline form by:

 
 
 
 

168. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

171. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

173. Cycas is similar to a mustard plant :

 
 
 
 

174. Iodine is obtained from:

 
 
 
 

175. White rust of crucifers is caused by:

 
 
 
 

176. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

178. Roots are absent in :

 
 
 
 

179. Fruits are not found in:

 
 
 
 

180. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

181. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

183. The orders generally have the uniform endings:

 
 
 
 

184. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

191. Chemosynthetic bacteria are:

 
 
 
 

192. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

194. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

196. Embryophyta includes:

 
 
 
 

197. Clostridium can:

 
 
 
 

198. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

199. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

201. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

205. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

208. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

211. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

212. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

214. Azolla growing in paddy fields helps in:

 
 
 
 

215. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

218. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

220. 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:

 
 
 
 

221. Who among the following discovered virus?

 
 
 
 

222. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

224. The gametophyte produced by apospory is :

 
 
 
 

225. Embryo formation is not known in :

 
 
 
 

226. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

228. The sporophyte of Riccia is :

 
 
 
 

229. 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?

 
 
 
 

230. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

232. The middle sterile part of capsule is called:

 
 
 
 

233. Which of the following are absent in Mycoplasma?

 
 
 
 

234. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

236. Zoogametes are not found in:

 
 
 
 

237. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

241. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

244. Black rust of wheat is caused by:

 
 
 
 

245. The spur of Pinus roxburghii has :

 
 
 
 

246. What is absent in Deuteromycetes?

 
 
 
 

247. A gill of Agaricus:

 
 
 
 

248. Longest known virus is:

 
 
 
 

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

 
 
 
 

250. The young leaves of Cycas have :

 
 
 
 

251. The prothallus of fern represents the plant:

 
 
 
 

252. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. Seeds are characteristically found in:

 
 
 
 

257. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

258. In Gymnosperms endosperm is a:

 
 
 
 

259. The zoospores of Ulothrix are :

 
 
 
 

260. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

262. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

266. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

268. Pollination drop is:

 
 
 
 

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

 
 
 
 

270. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

277. Green plants are classified as:

 
 
 
 

278. Transfusion tissue is present in the leaflet of:

 
 
 
 

279. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

281. Which of the following statements is not correct?

 
 
 
 

282. Linnaeus is credited with introducing:

 
 
 
 

283. Soil fertility is lost by the activities of:

 
 
 
 

284. Most of the algae are :

 
 
 
 

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

 
 
 
 

286. Redness of red sea is due to :

 
 
 
 

287. Which of the following shows heterotrichous habit?

 
 
 
 

288. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

290. Ulothrix produces :

 
 
 
 

291. The chloroplast in Ulothrix is :

 
 
 
 

292. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

295. Most resistant spore in bacteria is:

 
 
 
 

296. In moss, sporophyte is formed on:

 
 
 
 

297. Which condition is found in Cycas?

 
 
 
 

298. In tracheophyta:

 
 
 
 

299. Ovary is absent in:

 
 
 
 

300. Which is an edible fungus?

 
 
 
 

301. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

306. Which statement is wrong in regard to bacteria?

 
 
 
 

307. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

310. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

312. The sporophyte of Riccia is represented by :

 
 
 
 

313. Lichens reproduce by :

 
 
 
 

314. The tree fern is:

 
 
 
 

315. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

321. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

324. Bacteria growing on synthetic medium are called:

 
 
 
 

325. Most primitive group of vascular plants are:

 
 
 
 

326. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

328. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

329. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

333. Germination of the seed of Pinus is :

 
 
 
 

334. The rhizoids of Funaria are :

 
 
 
 

335. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

337. Ergot of rye is caused by:

 
 
 
 

338. Mycoplasma is different from bacteria due to:

 
 
 
 

339. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

340. Funaria is :

 
 
 
 

341.

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

 
 
 
 

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

 
 
 
 

344. In Funaria :

 
 
 
 

345. Heterospory and ligulate leaves are a feature of:

 
 
 
 

346. 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?

 
 
 
 

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

 
 
 
 

348. The fungi used as food are:

 
 
 
 

349. Typhoid in man is caused by:

 
 
 
 

350. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. Gymnosperms could also be called as:

 
 
 
 

356. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

358. Saccharomyces ludwigii ascus produces:

 
 
 
 

359. The lambda phase is a:

 
 
 
 

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

 
 
 
 

361. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

363. The coralloid roots are :

 
 
 
 

364. Which is the correct statement about Selaginella?

 
 
 
 

365. Metulae are found in:

 
 
 
 

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

 
 
 
 

367. Etiology includes the study of :

 
 
 
 

368. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

370. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

372. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

374. Psilotum is:

 
 
 
 

375. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. Photosynthetic protists belong to:

 
 
 
 

379. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

382. The mode of nutrition of bacteria is usually:

 
 
 
 

383. Which is a fungicide?

 
 
 
 

384. Sleeping sickness disease in man is caused by:

 
 
 
 

385. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

387. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

389. Male gametes in Dryopteris are:

 
 
 
 

390. The role of meiosis is for:

 
 
 
 

391. Reproduction in Cycas takes place by :

 
 
 
 

392. In moss, stomata are found:

 
 
 
 

393. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

395. Heterotrichous habit means :

 
 
 
 

396. Smut of maize is caused by :

 
 
 
 

397. The largest alga is:

 
 
 
 

398. Liverworts are included in :

 
 
 
 

399. Sometimes the bacterial cell is enclosed in:

 
 
 
 

400. The fungi are mostly:

 
 
 
 

401. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

408. The leafy fern plant represents the:

 
 
 
 

409. Who discovered cyanophages?

 
 
 
 

410. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

412. The Rhizopus gametes are formed in:

 
 
 
 

413. Which is absent from the xylem of Cycas?

 
 
 
 

414. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

416. Which is a tautonym?

 
 
 
 

417. Which is not true for Escherichia coli?

 
 
 
 

418. Winged seeds are found in :

 
 
 
 

419. Reproduction in Rhizopus is:

 
 
 
 

420. Triple antigen injection or vaccine are for:

 
 
 
 

421. Viroids have:

 
 
 
 

422. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

425. In a bacteriophage, DNA is present in:

 
 
 
 

426. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

428. Gram stain is used to:

 
 
 
 

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

 
 
 
 

430. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

432. Viruses have:

 
 
 
 

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

 
 
 
 

434. The stele of Dryopteris is a:

 
 
 
 

435. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

437. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

442. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

444. Which of the following lichens is harmful?

 
 
 
 

445. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

448. The group algae possesses representatives belonging to kingdom:

 
 
 
 

449. What is streptomycin?

 
 
 
 

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

 
 
 
 

451. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Coenogamete is found in:

 
 
 
 

456. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

458. The nucleus of bacteria is:

 
 
 
 

459. Saccharomyces is used in:

 
 
 
 

460. Funaria are commonly found :

 
 
 
 

461. Seeds are characteristically found in :

 
 
 
 

462. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

468. Mostly type of zygospore in Ulothrix is:

 
 
 
 

469. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

472. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

474. Black rust of wheat is caused by:

 
 
 
 

475.

476. All archaebacteria lack:

 
 
 
 

477. The mycelium of Rhizopus is:

 
 
 
 

478. Water-borne bacterial diseases are:

 
 
 
 

479. Why is Cycas called a living fossil?

 
 
 
 

480. Which of the following is a parasitic algae?

 
 
 
 

481. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

482. The central part of Funaria axis is :

 
 
 
 

483. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

485. Lichens are indicators of :

 
 
 
 

486. Usually, bacteria reproduce by:

 
 
 
 

487. Nannandria are:

 
 
 
 

488. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

492. Downy mildew disease is caused by :

 
 
 
 

493. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

496.

 

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

 
 
 
 

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

 
 
 
 

499. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

502. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

505. The term stele was given by:

 
 
 
 

506. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

508. Some bacteria cannot be killed easily because of:

 
 
 
 

509. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

511. Total parasites belong to:

 
 
 
 

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

 
 
 
 

513. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

515. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. Saccharomyces is well known for:

 
 
 
 

519. Pneumonia is caused by:

 
 
 
 

520. Bacteria are placed under:

 
 
 
 

521. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

524. 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?

 
 
 
 

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

 
 
 
 

526. Mycoplasma are sensitive to:

 
 
 
 

527. The sori in Dryopteris are found on:

 
 
 
 

528. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

529. Iodine is obtained from :

 
 
 
 

530. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

532. Virus and bacteriophage are made-up of:

 
 
 
 

533. Which is a gametophytic tissue?

 
 
 
 

534. The ferns are usually found:

 
 
 
 

535. 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:

 
 
 
 

536. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

539. Discovery of penicillin was based on:

 
 
 
 

540. Heterosporous pteridophytes always form:

 
 
 
 

541. Oswald Tippo’s classification is:

 
 
 
 

542. The DNA of E coli is:

 
 
 
 

543. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

546. The megaspore of Selaginella on germination produces:

 
 
 
 

547. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

549. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

551. Antibiotics cure the disease by:

 
 
 
 

552. Leprosy is caused by:

 
 
 
 

553. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

555. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

557. Viruses are considered to be:

 
 
 
 

558. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

560. What are Cyanobacteria?

 
 
 
 

561. Endemic plants are characterised by their:

 
 
 
 

562. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

563. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

566. Ethylene oxide is widely used to:

 
 
 
 

567. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. The two conjugating gametangia of Rhizopus are:

 
 
 
 

573. Nitrifying bacteria play an important role by converting:

 
 
 
 

574. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. Absorptive nutrition is:

 
 
 
 

579. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

581. The most primitive vascular plants is:

 
 
 
 

582. In dinoflagellates, the two flagella are:

 
 
 
 

583. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

586. Which part of Riccia bears nurse cells?

 
 
 
 

587. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

591. Vascular cryptogam is the term used for :

 
 
 
 

592. Fruits are not found in :

 
 
 
 

593. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

595. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

598. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. Who named prion?

 
 
 
 

611. The largest known bacterium is:

 
 
 
 

612. Rice, pea, potato are :

 
 
 
 

613. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

621. Generic name of mango is:

 
 
 
 

622. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

624. Fruiting body of lichens is :

 
 
 
 

625. The sexual reproductive organs in Rhizopus are:

 
 
 
 

626. Cycas plant in appearance resembles :

 
 
 
 

627. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

631. Most of the lichens are composed of :

 
 
 
 

632. Synzoospore is produced in:

 
 
 
 

633. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. Citrus canker is caused by:

 
 
 
 

637. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

639.

640. Cyanophage is a virus that attacks:

 
 
 
 

641. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

643. Infective part of virus was discovered by:

 
 
 
 

644. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

646. The chromosomal number in:

 
 
 
 

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

 
 
 
 

648. LSD is:

 
 
 
 

649. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

652. Funaria is :

 
 
 
 

653. Bacteria which are spherical are called:

 
 
 
 

654. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

656. Methanogens belong to:

 
 
 
 

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

 
 
 
 

658. Bacteriophages have been used as:

 
 
 
 

659. Indusium in Dryopteris is:

 
 
 
 

660. Ergot is obtained from :

 
 
 
 

661. 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:

 
 
 
 

662. Penicillin is obtained from:

 
 
 
 

663. The microsporophylls on the cone of Cycas are :

 
 
 
 

664. The root nodules of leguminous plants contain:

 
 
 
 

665. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

667. In moss, calyptra is formed from:

 
 
 
 

668. Male gametophyte of Selaginella is found:

 
 
 
 

669. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

670. Polystelic condition is found in:

 
 
 
 

671. Standard size of a herbarium sheet is:

 
 
 
 

672. The fungi are usually:

 
 
 
 

673. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

675. Multicellular and jacketed sex organs are found in :

 
 
 
 

676. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

678. Placenta in fern is:

 
 
 
 

679. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

683. Pseudomycelium is found in:

 
 
 
 

684. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

686. Club moss is the common name of :

 
 
 
 

687. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

689. Asexual reproductive body of Volvox is called:

 
 
 
 

690. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

693. NBG of Lucknow is now named as:

 
 
 
 

694. The similarity between cyanobacteria and bacteria:

 
 
 
 

695. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

698. Detailed study of bacteriophage was made by:

 
 
 
 

699. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

703. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

705. Which of the following are included in Tracheophyta?

 
 
 
 

706. Each chloroplast in Spirogyra bears :

 
 
 
 

707. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

709. The smallest unit of classification is:

 
 
 
 

710. Vegetative reproduction in Cycas is by means of :

 
 
 
 

711. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

715. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

717. In moss, reduction division occurs in :

 
 
 
 

718. Pythium debaryanum is the causative agent of:

 
 
 
 

719. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. To which class Riccia belongs :

 
 
 
 

726. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. In binomial system most of the words are:

 
 
 
 

730. Which group of algae have an incipient nucleus?

 
 
 
 

731. How a fern differs from a moss?

 
 
 
 

732. Spirogyra differs from moss protonema in having :

 
 
 
 

733. In Cycas microsporangia are borne on:

 
 
 
 

734. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

736. Rhizopus belongs to:

 
 
 
 

737. Cleavage polyembryony is found in :

 
 
 
 

738. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

740. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

741. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

744. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

746. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

748. Disease resistant plant varieties can be produced by :

 
 
 
 

749. Tautonyms are illegitimate in:

 
 
 
 

750. In moss, sporogenous tissue arises from:

 
 
 
 

751. The Rhizopus is:

 
 
 
 

752. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

754. Meristele of fern is:

 
 
 
 

755. Vascular tissue is found in :

 
 
 
 

756. Oswald Tippo’s classification was based on :

 
 
 
 

757. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

761. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. The leaves of Funaria are :

 
 
 
 

765. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

768. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

772. Which of the following does not contain chlorophyll?

 
 
 
 

773. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

774. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

777. Streptomyces falls under:

 
 
 
 

778. The ascus of yeast contains:

 
 
 
 

779. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

781. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

783. Lichen show :

 
 
 
 

784. Virion refers to:

 
 
 
 

785. Sexual reproduction of lichen is due to :

 
 
 
 

786. Halophiles are the bacteria that require for growth:

 
 
 
 

787. Most primitive embryophytes are placed in:

 
 
 
 

788. All algae have:

 
 
 
 

789. In a diplontic life cycle:

 
 
 
 

790. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

792. Gametophyte is the main plant body in :

 
 
 
 

793. The lichens growing on rocks are called :

 
 
 
 

794. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

796. Who discovered heterothallism in fungi?

 
 
 
 

797. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

798. In Gymnocarpeae the fruiting body is :

 
 
 
 

799. Select the correct statement: (NEET 2016)

 
 
 
 

800. The development of sporangium in Selaginella is:

 
 
 
 

801. Cyathia is characterized by:

 
 
 
 

802. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

804. Rhizopus and yeast are usually:

 
 
 
 

805. Which of the following is sago palm?

 
 
 
 

806. The teeth of peristome of Funaria are :

 
 
 
 

807. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

814. Pteridophyta are also called:

 
 
 
 

815. Lichens show :

 
 
 
 

816. Select the wrong statement:

 
 
 
 

817. Enteric bacteria are those bacteria that live:

 
 
 
 

818. What is the role of nitrifying bacteria?

 
 
 
 

819. Common phycobiont in a lichen is :

 
 
 
 

820. Select the wrong statement:

 
 
 
 

821. Simple polyembryony is found in :

 
 
 
 

822. Botulism is a:

 
 
 
 

823. Proembryo in Pinus is :

 
 
 
 

824. Ectocarpus produces:

 
 
 
 

825. Winged pollen grains are found in :

 
 
 
 

826. Rhizophore of Selaginella is:

 
 
 
 

827. Protistan algae obtain their food as:

 
 
 
 

828. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

830. True sexuality is not found in:

 
 
 
 

831. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

833. Climbers are found in genus:

 
 
 
 

834. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. Which of the following have algal zone?

 
 
 
 

840. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

844. 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:

 
 
 
 

845. E coli is a:

 
 
 
 

846. Funaria is a Bryophyta because :

 
 
 
 

847. All protozoans possess:

 
 
 
 

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

 
 
 
 

849. The spermatozoids of Cycas are :

 
 
 
 

850. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

852. Amoeba is a member of the phylum:

 
 
 
 

853. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

855. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

858. Which lichen is called Reindeer moss?

 
 
 
 

859. The chief characteristic of bryophyta is that :

 
 
 
 

860. The genetic material of poxvirus is:

 
 
 
 

861. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

864. Citrus canker is caused by :