Quiz_Random

1. Broad spectrum antibiotic is, which:

 
 
 
 

2. Black rust of wheat is caused by:

 
 
 
 

3. 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:

 
 
 
 

4. Yeast is a source of:

 
 
 
 

5. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

7. What are plasmids?

 
 
 
 

8. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

12. Who named prion?

 
 
 
 

13. Nannandria are:

 
 
 
 

14. Fruits are not found in:

 
 
 
 

15. Citrus canker is caused by :

 
 
 
 

16. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

18. The sporangiophores in Rhizopus are:

 
 
 
 

19. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

20. Disease resistant plant varieties can be produced by :

 
 
 
 

21. Pollination in Cycas takes place by :

 
 
 
 

22. Maximum diversity of life forms occurs in :

 
 
 
 

23. Fern prothallus is:

 
 
 
 

24. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

26. Botulism is a:

 
 
 
 

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

 
 
 
 

28. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. Milk is converted to curd by:

 
 
 
 

40. Linnaeus is credited with introducing:

 
 
 
 

41. Rhizoids of Riccia are :

 
 
 
 

42. Acetobacter is useful in:

 
 
 
 

43. Most of the lichens are composed of :

 
 
 
 

44. Saccharomyces is well known for:

 
 
 
 

45. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

49. Funaria is :

 
 
 
 

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

 
 
 
 

51. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Seeds are characteristically found in:

 
 
 
 

57. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

59. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

61. Which of the following have algal zone?

 
 
 
 

62. In Gymnocarpeae the fruiting body is :

 
 
 
 

63. Club moss is the common name of :

 
 
 
 

64. Which of the following are absent in Mycoplasma?

 
 
 
 

65. Cycas is:

 
 
 
 

66. Pollination in Pinus is :

 
 
 
 

67. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

69. Winged seeds are found in :

 
 
 
 

70. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

72. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

73. An alga which is rich in proteins:

 
 
 
 

74. Embryo formation is not known in :

 
 
 
 

75. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. The alga, Spirogyra are found in :

 
 
 
 

81. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

83. 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:

 
 
 
 

84. Wine turns sour because of:

 
 
 
 

85. Ulothrix produces :

 
 
 
 

86. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

88. Placenta in fern is:

 
 
 
 

89. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. Cycas is :

 
 
 
 

93. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

95. Diphtheria is caused by:

 
 
 
 

96. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

98. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

99. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

101. Cap cells are found in the filament of:

 
 
 
 

102. Pinus is:

 
 
 
 

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

 
 
 
 

104. Quarantine regulations are concerned with:

 
 
 
 

105. Absorptive nutrition is:

 
 
 
 

106. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

107. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

109. The central part of Funaria axis is :

 
 
 
 

110. Antibiotics cure the disease by:

 
 
 
 

111. The young leaves of Cycas have :

 
 
 
 

112. The root nodules of leguminous plants contain:

 
 
 
 

113. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

115. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. Vegetative reproduction in Cycas is by means of :

 
 
 
 

120. Most primitive embryophytes are placed in :

 
 
 
 

121. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

123. Club moss and Peat moss belong to:

 
 
 
 

124. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

126. Mycoplasma was discovered by:

 
 
 
 

127. Black rust of wheat is caused by:

 
 
 
 

128. Zoogametes are not found in:

 
 
 
 

129. Ovules are not found enclosed in ovary in :

 
 
 
 

130. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. Water-borne bacterial diseases are:

 
 
 
 

134. Which of the following is true for Selaginella?

 
 
 
 

135. Mucilaginous canals in Cycas are found in :

 
 
 
 

136. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

138. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

140. Who among the following discovered virus?

 
 
 
 

141. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

145. Reserve food in Euglena is:

 
 
 
 

146. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

150. In Cycas the fertilization is:

 
 
 
 

151. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

153. Cocci types of bacteria are:

 
 
 
 

154. Pythium debaryanum is the causative agent of:

 
 
 
 

155. Which of the following statement is correct?

 
 
 
 

156. Siphonogamy is found in:

 
 
 
 

157. Some biologists have used the term Mycetozoa for:

 
 
 
 

158. Embryophyta includes:

 
 
 
 

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

 
 
 
 

160. Facultative parasite is:

 
 
 
 

161. The coralloid roots are :

 
 
 
 

162. Agar-agar is obtained from:

 
 
 
 

163. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

164. Ergot is obtained from :

 
 
 
 

165. Mycoplasma are sensitive to:

 
 
 
 

166. Enzymes are absent in:

 
 
 
 

167. Which among the following is a shrub?

 
 
 
 

168. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

170. Vascular tissue is found in :

 
 
 
 

171. The fern plant is:

 
 
 
 

172. The smallest unit of classification is:

 
 
 
 

173. The mode of nutrition of bacteria is usually:

 
 
 
 

174. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

176. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

179. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. Iodine is obtained from :

 
 
 
 

185. Which part of Riccia bears nurse cells?

 
 
 
 

186. Generic name of mango is:

 
 
 
 

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

 
 
 
 

188. Vascular cryptogams is the term used for:

 
 
 
 

189. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

192. Which bacteria convert nitrate into nitrogen?

 
 
 
 

193. The Rhizopus is:

 
 
 
 

194. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

198. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. Photosynthetic protists belong to:

 
 
 
 

204. The chloroplast of Chlamydomonas are:

 
 
 
 

205. Viruses have:

 
 
 
 

206. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

208. Ovary is absent in :

 
 
 
 

209. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

211. The leaves of Funaria are :

 
 
 
 

212. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

214. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

216. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

218. 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:

 
 
 
 

219. Lichens show :

 
 
 
 

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

 
 
 
 

221. Bacteria are found everywhere, except:

 
 
 
 

222. The most primitive vascular plants is:

 
 
 
 

223. Which one of the following is a monocot?

 
 
 
 

224. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

225. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

227. In Cycas which structure is equivalent to stamen?

 
 
 
 

228. The archegonia in Selaginella develop on:

 
 
 
 

229. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

231. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

233. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

238. The phloem of vascular system of Cycas is :

 
 
 
 

239. Some bacteria cannot be killed easily because of:

 
 
 
 

240. Late blight of potato is caused by :

 
 
 
 

241. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

245. In Funaria :

 
 
 
 

246. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

248. Which is an edible fungus?

 
 
 
 

249. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

252. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. Genetic material of TMV is:

 
 
 
 

256. Liverworts are included in :

 
 
 
 

257. Viroids have:

 
 
 
 

258. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

260. The chloroplast in Ulothrix is :

 
 
 
 

261. The first to isolate a plant virus was:

 
 
 
 

262. Which of the following is a parasitic algae?

 
 
 
 

263. Which causes red tide?

 
 
 
 

264. The chief characteristic of class Ascomycetes is:

 
 
 
 

265. Lichens are the indicator of pollution :

 
 
 
 

266. Embryophyta includes :

 
 
 
 

267. In Herpes virus DNA is:

 
 
 
 

268. Bacteriophages have been used as:

 
 
 
 

269. Most appropriate word for protozoans is:

 
 
 
 

270. Proembryo in Pinus is :

 
 
 
 

271. Which of the following shows heterotrichous habit?

 
 
 
 

272. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

274. Oswald Tippo’s classification was based on :

 
 
 
 

275. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

278. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

286. Bentham and Hooker placed gymnosperms:

 
 
 
 

287. The prothallus of fern represents the plant:

 
 
 
 

288. Interferon is a:

 
 
 
 

289. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

293. Fruits are not found in :

 
 
 
 

294. All algae have:

 
 
 
 

295. Most of the algae are :

 
 
 
 

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

 
 
 
 

297. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

300. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

302. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

304. The ferns are usually found:

 
 
 
 

305. Special feature of pollen grains of Pinus is :

 
 
 
 

306. Germination of the seed of Pinus is :

 
 
 
 

307. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

308. The fungi are usually:

 
 
 
 

309. Each chloroplast in Spirogyra bears :

 
 
 
 

310. The order generally ends with:

 
 
 
 

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

 
 
 
 

312. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

314. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

317. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

319. To which country Antony van Leeuwenhoek belong?

 
 
 
 

320. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

322. Cycas plant in appearance resembles :

 
 
 
 

323. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. Infective part of virus was discovered by:

 
 
 
 

327. Ethylene oxide is widely used to:

 
 
 
 

328. Fairy ring is the name given to:

 
 
 
 

329. Protozoans are considered animals because these are:

 
 
 
 

330. The sporangia of Selaginella are attached:

 
 
 
 

331. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

333. 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:

 
 
 
 

334. The fungi are mostly:

 
 
 
 

335. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

338. Sleeping sickness disease in man is caused by:

 
 
 
 

339. Transfusion tissue is present in the leaflet of:

 
 
 
 

340. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

344. Simple polyembryony is found in :

 
 
 
 

345. Sporophyte of fern is:

 
 
 
 

346. 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:

 
 
 
 

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

 
 
 
 

348. The disease symptom necrosis refers to :

 
 
 
 

349. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Acellular slime mold is/are:

 
 
 
 

353. Which statement is wrong in regard to bacteria?

 
 
 
 

354. Majority of lichens are :

 
 
 
 

355. The leafy fern plant represents the:

 
 
 
 

356. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

363. Which of the following have a prokaryotic cell?

 
 
 
 

364. In Selaginella, the microsporangia are:

 
 
 
 

365. Which of the following are included in Tracheophyta?

 
 
 
 

366. Leprosy is caused by:

 
 
 
 

367. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

369. Cycas is similar to a mustard plant :

 
 
 
 

370. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

372. Spirogyra represents the :

 
 
 
 

373. In Cycas:

 
 
 
 

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

 
 
 
 

375. Sporophyte of Funaria is :

 
 
 
 

376. The lambda phase is a:

 
 
 
 

377. The sori in Dryopteris are found on:

 
 
 
 

378. The microsporophylls on the cone of Cycas are :

 
 
 
 

379. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

381. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

383. The middle sterile part of capsule is called:

 
 
 
 

384. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

386. Who discovered cyanophages?

 
 
 
 

387. Total parasites belong to:

 
 
 
 

388. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

390. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

398. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

400. Lichens are indicators of :

 
 
 
 

401. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

404. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

406. Who discovered heterothallism in fungi?

 
 
 
 

407. Which lichen is called Reindeer moss?

 
 
 
 

408. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414. The ascus of yeast contains:

 
 
 
 

415. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

417. Sexual reproduction in Rhizopus is by:

 
 
 
 

418. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

420. The chromosomal number in:

 
 
 
 

421. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

423. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

425. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

428. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. Helotism word is used for the symbiosis between :

 
 
 
 

432. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

436. Which is not true for Escherichia coli?

 
 
 
 

437. Cell walls of Gram-positive bacteria contain:

 
 
 
 

438. Who discovered streptomycin?

 
 
 
 

439. Roots are absent in :

 
 
 
 

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

 
 
 
 

441. 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?

 
 
 
 

442. The term stele was given by:

 
 
 
 

443. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

444. In dinoflagellates, the two flagella are:

 
 
 
 

445. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

447. Gram stain is used to:

 
 
 
 

448. Selaginella differs from Moss in having:

 
 
 
 

449. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

451. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

453. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

455. Nitrogen-fixing bacteria may be located:

 
 
 
 

456. Pythium debaryanum is the causative agent of:

 
 
 
 

457. The genetic material of poxvirus is:

 
 
 
 

458. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

460. Late blight of potato is caused by:

 
 
 
 

461. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

463. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

465. Longest known virus is:

 
 
 
 

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

 
 
 
 

467. Pollination drop is:

 
 
 
 

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

 
 
 
 

469. Saccharomyces ludwigii ascus produces:

 
 
 
 

470. Mycoplasmas are not viruses in nature because:

 
 
 
 

471. Gymnosperms could also be called as:

 
 
 
 

472. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

475. Cyathia is characterized by:

 
 
 
 

476. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

478. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

480. Redness of red sea is due to :

 
 
 
 

481. Cleavage polyembryony is found in :

 
 
 
 

482. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

484. Economic importance of bacteria lies in their being:

 
 
 
 

485. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

487. 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?

 
 
 
 

488. Ginkgo biloba is a:

 
 
 
 

489. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

492. Leaf spot of groundnut is caused by :

 
 
 
 

493. Red rot of sugarcane is caused by :

 
 
 
 

494. Among the algae kelps are :

 
 
 
 

495. All protozoans possess:

 
 
 
 

496. Chief constituents of bordeaux mixture are :

 
 
 
 

497. Cycas is different from mango in :

 
 
 
 

498. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

500. Green plants are classified as :

 
 
 
 

501. E coli is a:

 
 
 
 

502. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

509. The fungi that grow on wood are called:

 
 
 
 

510. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

516. Small epidermal swellings due to infection are called :

 
 
 
 

517. Heterocysts are found in :

 
 
 
 

518. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

523. Which of the following is a monocot?

 
 
 
 

524. Smut of maize is caused by :

 
 
 
 

525. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

527. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

531. LSD is:

 
 
 
 

532. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

538. Penicillin was discovered by:

 
 
 
 

539. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

541. What is a vector?

 
 
 
 

542. The most important property of yeast is:

 
 
 
 

543. Which fixes atmospheric nitrogen?

 
 
 
 

544. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

545. The truncated cone of HIV consists of:

 
 
 
 

546. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Which of the following lichens is harmful?

 
 
 
 

550. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

552. Usually, bacteria reproduce by:

 
 
 
 

553. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

556. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. Botulinum toxin effects:

 
 
 
 

563. Select the wrong statement:

 
 
 
 

564. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

566. Penicillin is obtained from:

 
 
 
 

567. The upper region of moss capsule is :

 
 
 
 

568. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

575. Pasteurized milk is:

 
 
 
 

576. Psilotum is:

 
 
 
 

577. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

579. An Hfr bacterium is one that contains:

 
 
 
 

580. Most primitive kind of flower is represented by:

 
 
 
 

581. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

583. 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?

 
 
 
 

584. Reproduction in Rhizopus is:

 
 
 
 

585. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

588. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

591. Sometimes the bacterial cell is enclosed in:

 
 
 
 

592. Kuru, a human disease is caused by:

 
 
 
 

593. The two conjugating gametangia of Rhizopus are:

 
 
 
 

594. The orders generally have the uniform endings:

 
 
 
 

595. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

598. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

599. The zygospore in Rhizopus on germination forms:

 
 
 
 

600. The role of meiosis is for:

 
 
 
 

601. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

604. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

606. Endemic plants are characterised by their:

 
 
 
 

607. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

609. Water-net is the name of:

 
 
 
 

610. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

612. The megaspore of Selaginella on germination produces:

 
 
 
 

613. Fruiting body of lichens is :

 
 
 
 

614. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

615. Cycas revoluta is widely grown as :

 
 
 
 

616. Which have the largest antherozoid?

 
 
 
 

617. Which class of Protozoa includes all parasitic forms?

 
 
 
 

618. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

620. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

623. Lichens reproduce by :

 
 
 
 

624. Desired type of Cycas can be grown by:

 
 
 
 

625. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

628. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. The zoospores of Ulothrix are :

 
 
 
 

635. Rice, pea, potato are :

 
 
 
 

636. . Tapetum develops in:

 
 
 
 

637. Cryptogams include :

 
 
 
 

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

 
 
 
 

639. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

641. Anoxygenic photosynthesis occurs in:

 
 
 
 

642. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

646. Germ theory of disease was proposed by:

 
 
 
 

647. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

648. Metulae are found in:

 
 
 
 

649. Circular DNA is seen in:

 
 
 
 

650.

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

 
 
 
 

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

 
 
 
 

653. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

656. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

657. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

659. Bacteriophage consists of:

 
 
 
 

660. The group algae possesses representatives belonging to kingdom:

 
 
 
 

661. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

663. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

669. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

671. Bryophyta have a special character from other plants:

 
 
 
 

672. Most primitive embryophytes are placed in:

 
 
 
 

673. Asexual reproductive body of Volvox is called:

 
 
 
 

674. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

676. Methanogens belong to:

 
 
 
 

677. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

679. Chemosynthetic bacteria are:

 
 
 
 

680. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

682. White rust of crucifers is caused by:

 
 
 
 

683. Clostridium can:

 
 
 
 

684. How is moss different from fern?

 
 
 
 

685. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

687. Cyanophage is a virus that attacks:

 
 
 
 

688. The sporophyte of Riccia is represented by :

 
 
 
 

689. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

691. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

694. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

699. Bivalved siliceous shell or frustule occur in:

 
 
 
 

700. The roots of Cycas are :

 
 
 
 

701. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. The sexual reproductive organs in Rhizopus are:

 
 
 
 

706. The leaves of Funaria are :

 
 
 
 

707. What is special feature of fern archegonia?

 
 
 
 

708. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

710. Mycoplasma contains:

 
 
 
 

711. Amoeba is a member of the phylum:

 
 
 
 

712. In Cycas microsporangia are borne on:

 
 
 
 

713. Pteridophyta are also called:

 
 
 
 

714. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. Parmelia belongs to :

 
 
 
 

720.

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

 
 
 
 

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

 
 
 
 

723. Funaria can be differentiated from Cycas :

 
 
 
 

724. True sexuality is not found in:

 
 
 
 

725. Most common type of conjugation in Spirogyra is :

 
 
 
 

726. The lichens growing on rocks are called :

 
 
 
 

727. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

730. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

733. Mycoplasma is different from bacteria due to:

 
 
 
 

734. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

739. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

741. In moss, reduction division occurs in :

 
 
 
 

742. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

745. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

750. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Synzoospore is produced in:

 
 
 
 

755. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

756. Virion refers to:

 
 
 
 

757. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

760. Which of the following statements is not correct?

 
 
 
 

761. 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?

 
 
 
 

762. Which is a fungicide?

 
 
 
 

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

 
 
 
 

764. Heterotrichous habit means :

 
 
 
 

765.

 

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

 
 
 
 

767. Green plants are classified as:

 
 
 
 

768. The fungi used as food are:

 
 
 
 

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

 
 
 
 

770. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

773. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

775. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

779. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

781. The largest known bacterium is:

 
 
 
 

782. The disease apple scab is caused by:

 
 
 
 

783. Streptomycin is obtained from:

 
 
 
 

784. Virus and bacteriophage are made-up of:

 
 
 
 

785. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

787. Bacteria are placed under:

 
 
 
 

788. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. The antibiotic is obtained from:

 
 
 
 

793. Photosynthetic bacteria have:

 
 
 
 

794. What is streptomycin?

 
 
 
 

795. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

797. Plasmids are:

 
 
 
 

798. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

800. Ergot of rye is caused by:

 
 
 
 

801. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

803. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

805. Lichens form the first community in

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. What is mycorrhiza?

 
 
 
 

809. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

813. Banana bunchy top is caused by :

 
 
 
 

814. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

818. Azolla and Salvinia both are:

 
 
 
 

819. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

825. Water bloom is generally caused by :

 
 
 
 

826. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

830. The vascular bundles of Cycas stem are :

 
 
 
 

831. Why is Cycas called a living fossil?

 
 
 
 

832. Heterospory is the production of:

 
 
 
 

833. The teeth of peristome of Funaria are :

 
 
 
 

834. The leaf of Cycas shows:

 
 
 
 

835. Fruits are not found in Cycas because:

 
 
 
 

836. Lichens are ecologically important because :

 
 
 
 

837.

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

 
 
 
 

839. Which is a gametophytic tissue?

 
 
 
 

840. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

846. In a diplontic life cycle:

 
 
 
 

847. 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:

 
 
 
 

848. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

850. Mostly type of zygospore in Ulothrix is:

 
 
 
 

851. Lichen show :

 
 
 
 

852. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

855. Choose the correct statement about Spirogyra:

 
 
 
 

856. Pteridophytes are also known as :

 
 
 
 

857. Meristele of fern is:

 
 
 
 

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

 
 
 
 

859. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

861. To which class Riccia belongs :

 
 
 
 

862. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

864. Vascular cryptogam is the term used for :