Quiz_Random

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

 
 
 
 

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

 
 
 
 

3. What is special feature of fern archegonia?

 
 
 
 

4. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

6. Which have the largest antherozoid?

 
 
 
 

7. Photosynthetic protists belong to:

 
 
 
 

8. Fruits are not found in:

 
 
 
 

9. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

11. Methanogens belong to:

 
 
 
 

12. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

14. Rhizophore of Selaginella is:

 
 
 
 

15. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

17. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

19. Most appropriate word for protozoans is:

 
 
 
 

20. Mycoplasma was discovered by:

 
 
 
 

21. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

27. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

29. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

31. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

32. Synzoospore is produced in:

 
 
 
 

33. The teeth of peristome of Funaria are :

 
 
 
 

34. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

36. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

41. E coli is a:

 
 
 
 

42. The two conjugating gametangia of Rhizopus are:

 
 
 
 

43. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

45. Yeast is a source of:

 
 
 
 

46. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

51. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

56. The roots of Cycas are :

 
 
 
 

57. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

58. What is the role of nitrifying bacteria?

 
 
 
 

59. Botulinum toxin effects:

 
 
 
 

60. Pteridophytes are also known as :

 
 
 
 

61. Mycoplasmas are not viruses in nature because:

 
 
 
 

62. Liverworts are included in :

 
 
 
 

63. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. In Gymnosperms endosperm is a:

 
 
 
 

67. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Some diseases caused by bacteria are:

 
 
 
 

72. 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:

 
 
 
 

73. The rhizoids of Funaria are :

 
 
 
 

74. The disease apple scab is caused by:

 
 
 
 

75. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

77. Ectocarpus produces:

 
 
 
 

78. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Cycas revoluta is widely grown as :

 
 
 
 

83. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

85.

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

 
 
 
 

87. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

89. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Linnaeus is credited with introducing:

 
 
 
 

96. Typhoid in man is caused by:

 
 
 
 

97. Milk is converted to curd by:

 
 
 
 

98. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

100. The smallest bacterium is:

 
 
 
 

101. Embryophyta includes :

 
 
 
 

102. Small epidermal swellings due to infection are called :

 
 
 
 

103. Rhizopus belongs to:

 
 
 
 

104. Enteric bacteria are those bacteria that live:

 
 
 
 

105. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

107. The coralloid roots are :

 
 
 
 

108. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

111. Yeast belongs to class:

 
 
 
 

112. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

117. Common phycobiont in a lichen is :

 
 
 
 

118. Reproduction in Cycas takes place by :

 
 
 
 

119. Placenta in fern is:

 
 
 
 

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

 
 
 
 

121. Select the wrong statement:

 
 
 
 

122. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

125. Ethylene oxide is widely used to:

 
 
 
 

126. Which of the following have algal zone?

 
 
 
 

127. Lichen show :

 
 
 
 

128. The most important property of yeast is:

 
 
 
 

129.

 

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

 
 
 
 

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

 
 
 
 

132. Asexual reproductive body of Volvox is called:

 
 
 
 

133. Ovary is absent in:

 
 
 
 

134. The chloroplast of Chlamydomonas are:

 
 
 
 

135. In angiosperms double fertilization represents:

 
 
 
 

136. Acetobacter is useful in:

 
 
 
 

137. Which statement is wrong in regard to bacteria?

 
 
 
 

138. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

144. Virion refers to:

 
 
 
 

145. The leaf of Cycas shows:

 
 
 
 

146. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

148. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

150. The young leaves of Cycas have :

 
 
 
 

151. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

158. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

161. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

163. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

166. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

168. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

171. Pteridophyta are also called:

 
 
 
 

172. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

175. Early blight of potato is caused by:

 
 
 
 

176. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

179. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

181. Pinus gerardiana is :

 
 
 
 

182. Leprosy is caused by:

 
 
 
 

183. Green plants are classified as:

 
 
 
 

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

 
 
 
 

185. Lichens show :

 
 
 
 

186. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

188. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

190. The zygospore in Rhizopus on germination forms:

 
 
 
 

191. The spermatozoids of Cycas are :

 
 
 
 

192. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

195. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

196. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

198. The development of Selaginella embryo is:

 
 
 
 

199. Oswald Tippo’s classification is:

 
 
 
 

200. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. Which of the following are absent in Mycoplasma?

 
 
 
 

204. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

205. Mycoplasma are:

 
 
 
 

206. Nannandria are:

 
 
 
 

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

 
 
 
 

208. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

210. Which is a fungicide?

 
 
 
 

211. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

213. Quarantine regulations are concerned with:

 
 
 
 

214. The megasporangium of Selaginella is:

 
 
 
 

215. In Pteris, the archegonia are present:

 
 
 
 

216. The Rhizopus is:

 
 
 
 

217. Water-net is the name of:

 
 
 
 

218. Viruses are considered to be:

 
 
 
 

219. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

222. Which of the following statements is not correct?

 
 
 
 

223. Black rust of wheat is caused by:

 
 
 
 

224. Coenogamete is found in:

 
 
 
 

225. Which is not true for Escherichia coli?

 
 
 
 

226. Gametophyte is the main plant body in :

 
 
 
 

227. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

229. 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:

 
 
 
 

230. Infective part of virus was discovered by:

 
 
 
 

231. Vascular tissue is found in :

 
 
 
 

232. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. Cyathia is characterized by:

 
 
 
 

237. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

240. White rust of crucifers is caused by:

 
 
 
 

241. Protozoans are considered animals because these are:

 
 
 
 

242. Each chloroplast in Spirogyra bears :

 
 
 
 

243. The gametophyte of fern bears:

 
 
 
 

244. Pasteurization of milk involves heating for:

 
 
 
 

245. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

249. 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?

 
 
 
 

250. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. What is mycorrhiza?

 
 
 
 

257. Clostridium can:

 
 
 
 

258. Soil fertility is lost by the activities of:

 
 
 
 

259. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

264. Heterospory and ligulate leaves are a feature of:

 
 
 
 

265. Which fixes atmospheric nitrogen?

 
 
 
 

266. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

268. Botulism is a:

 
 
 
 

269. In Selaginella, the microsporangia are:

 
 
 
 

270. Black rust of wheat is caused by:

 
 
 
 

271. The lambda phase is a:

 
 
 
 

272. All algae have:

 
 
 
 

273. Funaria are commonly found :

 
 
 
 

274. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

276. Bacteriophage consists of:

 
 
 
 

277. Plasmids are:

 
 
 
 

278. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. Iodine is obtained from:

 
 
 
 

285. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

287. Funaria is :

 
 
 
 

288. The term stele was given by:

 
 
 
 

289. The fungi used as food are:

 
 
 
 

290. Halophiles are the bacteria that require for growth:

 
 
 
 

291. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

293. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

295. The zoospores of Ulothrix are :

 
 
 
 

296. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

298. All protozoans possess:

 
 
 
 

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

 
 
 
 

300. The Rhizopus gametes are formed in:

 
 
 
 

301. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

305. Who discovered cyanophages?

 
 
 
 

306. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

308. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

313. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

315. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

318. Saccharomyces is used in:

 
 
 
 

319. All archaebacteria lack:

 
 
 
 

320. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

322. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

325. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. Vascular cryptogam is the term used for :

 
 
 
 

330. Cellular slime mold is:

 
 
 
 

331. The mode of nutrition of bacteria is usually:

 
 
 
 

332. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

334. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

335. Proembryo in Pinus is :

 
 
 
 

336. Spirogyra differs from moss protonema in having :

 
 
 
 

337. Viruses are commonly transmitted in plants through:

 
 
 
 

338. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

341. Which one of the following statement is wrong?

 
 
 
 

342. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Vascular cryptogams is the term used for:

 
 
 
 

353. Which causes red tide?

 
 
 
 

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

 
 
 
 

355. Which one of the following is a monocot?

 
 
 
 

356. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

358. Disease resistant plant varieties can be produced by :

 
 
 
 

359. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

361. Most common type of conjugation in Spirogyra is :

 
 
 
 

362. Most of the lichens are composed of :

 
 
 
 

363. Etiology includes the study of :

 
 
 
 

364. Gymnosperms could also be called as:

 
 
 
 

365. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

367. In a diplontic life cycle:

 
 
 
 

368. Some bacteria cannot be killed easily because of:

 
 
 
 

369. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

371. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

374. LSD is:

 
 
 
 

375. The mycelium of Rhizopus is:

 
 
 
 

376. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

379. Heterocysts are found in :

 
 
 
 

380. TMV was isolated in crystalline form by:

 
 
 
 

381. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

383. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

386. Lichens are indicators of :

 
 
 
 

387. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

393. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

395. Which class of Protozoa includes all parasitic forms?

 
 
 
 

396. Late blight of potato is caused by :

 
 
 
 

397. Which of the following shows heterotrichous habit?

 
 
 
 

398. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

401. Virus and bacteriophage are made-up of:

 
 
 
 

402. The sori in Dryopteris are found on:

 
 
 
 

403. Ovary is absent in :

 
 
 
 

404. Select the wrong statement:

 
 
 
 

405. The chief characteristic of bryophyta is that :

 
 
 
 

406. Fairy ring is the name given to:

 
 
 
 

407. The development of sporangium in Selaginella is:

 
 
 
 

408. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

410. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

412. Bryophyta have a special character from other plants:

 
 
 
 

413. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

415. To which class Riccia belongs :

 
 
 
 

416. Embryophyta includes:

 
 
 
 

417. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

419. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

422. 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?

 
 
 
 

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

 
 
 
 

424. The fungi that grow on wood are called:

 
 
 
 

425. First animal pathogenic virus was discovered by:

 
 
 
 

426. In Funaria, calyptra is derived from :

 
 
 
 

427. 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:

 
 
 
 

428. The middle sterile part of capsule is called:

 
 
 
 

429. In Cycas which structure is equivalent to stamen?

 
 
 
 

430. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

432. Winged pollen grains are found in :

 
 
 
 

433. In Cycas:

 
 
 
 

434. The phloem of vascular system of Cycas is :

 
 
 
 

435. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

439. The megaspore of Selaginella on germination produces:

 
 
 
 

440. Psilotum is:

 
 
 
 

441. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

444. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

447. Club moss is the common name of :

 
 
 
 

448. Spirogyra represents the :

 
 
 
 

449. The fern plant is:

 
 
 
 

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

 
 
 
 

451. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

453. A gill of Agaricus:

 
 
 
 

454. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

458. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

460. . Tapetum develops in:

 
 
 
 

461. The leafy fern plant represents the:

 
 
 
 

462. The microsporophylls on the cone of Cycas are :

 
 
 
 

463. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. Germ theory of disease was proposed by:

 
 
 
 

467. Ovules are not found enclosed in ovary in :

 
 
 
 

468.

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

 
 
 
 

470. In a bacteriophage, DNA is present in:

 
 
 
 

471. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

473. In Herpes virus DNA is:

 
 
 
 

474. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

476. The chloroplast in Ulothrix is :

 
 
 
 

477. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. Heterotrichous habit means :

 
 
 
 

483. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

485. Lichens reproduce by :

 
 
 
 

486. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

488. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

492. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

494. Detailed study of bacteriophage was made by:

 
 
 
 

495. The leaves of Funaria are :

 
 
 
 

496. Bacteria are considered to be plants because they:

 
 
 
 

497. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

499. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

501. Viruses have:

 
 
 
 

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

 
 
 
 

503. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. The most primitive vascular plants is:

 
 
 
 

507. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

510. Bentham and Hooker placed gymnosperms:

 
 
 
 

511. Lichens are the indicator of pollution :

 
 
 
 

512. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

513. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

515. Red rot of sugarcane is caused by :

 
 
 
 

516. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

517. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

520. In Cycas the fertilization is:

 
 
 
 

521. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

524. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

525. The role of meiosis is for:

 
 
 
 

526. Pinus microsporophyll bears:

 
 
 
 

527. Banana bunchy top is caused by :

 
 
 
 

528. Which is an exception to cell theory?

 
 
 
 

529. Azolla and Salvinia both are:

 
 
 
 

530. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

532. The genetic material of poxvirus is:

 
 
 
 

533. Most of the algae are :

 
 
 
 

534. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

539. Which is a redwood tree?

 
 
 
 

540. The source of litmus is :

 
 
 
 

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

 
 
 
 

542. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

543. Meristele of fern is:

 
 
 
 

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

 
 
 
 

545. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

547. Isomorphic type alternation of generation is found in:

 
 
 
 

548. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

550. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

552. Fruits are not found in :

 
 
 
 

553. Centric discoid form of diatom is:

 
 
 
 

554. Rhizopus and yeast are usually:

 
 
 
 

555. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

558. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

561. Red rot of sugarcane is caused by :

 
 
 
 

562. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

564. In tracheophyta:

 
 
 
 

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

 
 
 
 

566. Who discovered heterothallism in fungi?

 
 
 
 

567. The orders generally have the uniform endings:

 
 
 
 

568. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

571. Rice, pea, potato are :

 
 
 
 

572. In moss, conducting tissue is made up of

 
 
 
 

573. Cleavage polyembryony is found in :

 
 
 
 

574. Which is not found in bacteria?

 
 
 
 

575. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

579. 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?

 
 
 
 

580. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

582. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

584. In moss, calyptra is formed from:

 
 
 
 

585. Which is absent from the xylem of Cycas?

 
 
 
 

586. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

589. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

591. Ergot is obtained from :

 
 
 
 

592. The gametophyte of moss has distinct phases :

 
 
 
 

593. Which is the correct statement about Selaginella?

 
 
 
 

594. Which of the following is a monocot?

 
 
 
 

595. Embryo formation is not known in :

 
 
 
 

596. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

598. Spermatophyta are characterized by producing:

 
 
 
 

599. The fungi are usually:

 
 
 
 

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

 
 
 
 

601. Leaf spot of groundnut is caused by :

 
 
 
 

602. Endemic plants are characterised by their:

 
 
 
 

603. Lichens form the first community in

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

607. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

609. The fungi are mostly:

 
 
 
 

610. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

613. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

615. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. Which of the following is true for viruses?

 
 
 
 

620. Mycoplasma is different from bacteria due to:

 
 
 
 

621. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

624. Parmelia belongs to :

 
 
 
 

625. The sporangiophores in Rhizopus are:

 
 
 
 

626. Cocci types of bacteria are:

 
 
 
 

627. The prothallus of fern represents the plant:

 
 
 
 

628. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

631. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

633. Fertility of the soil is increased by:

 
 
 
 

634. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

636. Cycas is :

 
 
 
 

637. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

639. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

642. Pneumonia is caused by:

 
 
 
 

643. Anoxygenic photosynthesis occurs in:

 
 
 
 

644. Funaria is :

 
 
 
 

645. Bacteria which are spherical are called:

 
 
 
 

646. What is streptomycin?

 
 
 
 

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

 
 
 
 

648. Special feature of pollen grains of Pinus is :

 
 
 
 

649. The sporophyte of Riccia is :

 
 
 
 

650. The largest alga is:

 
 
 
 

651. What is a vector?

 
 
 
 

652. The leaves of Funaria are :

 
 
 
 

653. Which lichen is called Reindeer moss?

 
 
 
 

654. Lichens reproduce by :

 
 
 
 

655. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

657. Which of the following is true for Selaginella?

 
 
 
 

658. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

662. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

664. Which of the following have a prokaryotic cell?

 
 
 
 

665. Metulae are found in:

 
 
 
 

666. Green plants are classified as :

 
 
 
 

667. Multicellular and jacketed sex organs are found in :

 
 
 
 

668. Total parasites belong to:

 
 
 
 

669. Antibiotic has been extracted from :

 
 
 
 

670. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

674. Cycas is:

 
 
 
 

675. 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:

 
 
 
 

676. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

678. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

680. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

682. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

684. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

691. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. Sporophyte of fern is:

 
 
 
 

696. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

698. Saccharomyces is well known for:

 
 
 
 

699. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

701. The truncated cone of HIV consists of:

 
 
 
 

702. Where does meiosis occur in yeast?

 
 
 
 

703. The ferns are usually found:

 
 
 
 

704. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

706. How is moss different from fern?

 
 
 
 

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

 
 
 
 

708. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

710. Transfusion tissue is present in the leaflet of:

 
 
 
 

711. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

713. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

716. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. Woody climbers are known as :

 
 
 
 

720. Little leaf disease of Brinjal is caused by:

 
 
 
 

721. In moss, sporogenous tissue arises from:

 
 
 
 

722. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

724. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

727. The sexual reproductive organs in Rhizopus are:

 
 
 
 

728. 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:

 
 
 
 

729. An Hfr bacterium is one that contains:

 
 
 
 

730. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

733. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

734. Sporophyte of Funaria is :

 
 
 
 

735. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

737. Which of the following applies to Selaginella?

 
 
 
 

738. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

740. The upper region of moss capsule is :

 
 
 
 

741. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

745. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

748. Desired type of Cycas can be grown by:

 
 
 
 

749. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

751. Broad spectrum antibiotic is, which:

 
 
 
 

752. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

754. Seeds are characteristically found in:

 
 
 
 

755. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

758. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

760. What are plasmids?

 
 
 
 

761. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. Who discovered streptomycin?

 
 
 
 

765. Zoogametes are not found in:

 
 
 
 

766. Facultative parasite is:

 
 
 
 

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

 
 
 
 

768. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

772. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

774.

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

 
 
 
 

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

 
 
 
 

777. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

779. Longest known virus is:

 
 
 
 

780. Mostly type of zygospore in Ulothrix is:

 
 
 
 

781. Cycas plant in appearance resembles :

 
 
 
 

782. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

784. Choose the correct statement about Spirogyra:

 
 
 
 

785. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

787. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

790. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

792. Polystelic condition is found in:

 
 
 
 

793. Pollination drop is:

 
 
 
 

794. Bacteria are found everywhere, except:

 
 
 
 

795. Roots are absent in :

 
 
 
 

796. The similarity between cyanobacteria and bacteria:

 
 
 
 

797. Siphonogamy is found in:

 
 
 
 

798. Economic importance of bacteria lies in their being:

 
 
 
 

799. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

801. Fruiting body of lichens is :

 
 
 
 

802. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

804. Heterosporous pteridophytes always form:

 
 
 
 

805. In moss, peristomial teeth are:

 
 
 
 

806. Which is a tautonym?

 
 
 
 

807. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

809. Aflatoxin is produced as a product in :

 
 
 
 

810. Discovery of penicillin was based on:

 
 
 
 

811. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

814. 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?

 
 
 
 

815. The first to isolate a plant virus was:

 
 
 
 

816. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

817. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

819. Most primitive embryophytes are placed in:

 
 
 
 

820. In moss, reduction division occurs in :

 
 
 
 

821. The order generally ends with:

 
 
 
 

822. Bryophyta have been placed in cryptogams because:

 
 
 
 

823. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

826. Among the algae kelps are :

 
 
 
 

827. The chief characteristic of class Ascomycetes is:

 
 
 
 

828. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

830. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

835. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

837. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

840. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

845. Which of the following does not contain chlorophyll?

 
 
 
 

846. The disease symptom necrosis refers to :

 
 
 
 

847. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

851. Fern phloem lacks:

 
 
 
 

852. Generic name of mango is:

 
 
 
 

853. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

856. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

858. Mycoplasma contains:

 
 
 
 

859. To which country Antony van Leeuwenhoek belong?

 
 
 
 

860. Bacteria differ from viruses in being sensitive to:

 
 
 
 

861. Ergot of rye is caused by:

 
 
 
 

862. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

864. Cell walls of Gram-positive bacteria contain: