Quiz_Random

1. Pasteurization of milk involves heating for:

 
 
 
 

2. What is absent in Deuteromycetes?

 
 
 
 

3. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Fern plants are:

 
 
 
 

7. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Embryophyta includes:

 
 
 
 

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

 
 
 
 

14. Majority of lichens are :

 
 
 
 

15. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

18. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

20. Placenta in fern is:

 
 
 
 

21. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

23. The development of sporangium in Selaginella is:

 
 
 
 

24. Viruses are considered to be:

 
 
 
 

25. The central part of Funaria axis is :

 
 
 
 

26. Virion refers to:

 
 
 
 

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

 
 
 
 

28. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

29. Which of the following statements is not correct?

 
 
 
 

30. In Cycas the fertilization is:

 
 
 
 

31. Amoeba is a member of the phylum:

 
 
 
 

32. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

34. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

36. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. Which of the following have algal zone?

 
 
 
 

40. In Funaria :

 
 
 
 

41. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Bentham and Hooker placed gymnosperms:

 
 
 
 

45. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. 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?

 
 
 
 

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

 
 
 
 

50. Diploxylic vascular bundles are found in:

 
 
 
 

51. 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:

 
 
 
 

52. Ergot of rye is caused by:

 
 
 
 

53. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. What is streptomycin?

 
 
 
 

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

 
 
 
 

58. Streptomycin is obtained from:

 
 
 
 

59. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

61. Bacteriophages have been used as:

 
 
 
 

62. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Who discovered streptomycin?

 
 
 
 

70. The sporangium of fern contains nearly:

 
 
 
 

71. Ulothrix produces :

 
 
 
 

72. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

74. Climbers are found in genus:

 
 
 
 

75. Reserve food in Euglena is:

 
 
 
 

76. The teeth of peristome of Funaria are :

 
 
 
 

77. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

79. In Funaria, calyptra is derived from :

 
 
 
 

80. Cryptogams include :

 
 
 
 

81.

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

 
 
 
 

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

 
 
 
 

84. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

86. Cocci types of bacteria are:

 
 
 
 

87. Most of the lichens are composed of :

 
 
 
 

88. Desired type of Cycas can be grown by:

 
 
 
 

89. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

91. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

93. Meristele of fern is:

 
 
 
 

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

 
 
 
 

95. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. The disease apple scab is caused by:

 
 
 
 

100. In Gymnocarpeae the fruiting body is :

 
 
 
 

101. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

104. Embryo formation is not known in :

 
 
 
 

105. Generic name of mango is:

 
 
 
 

106. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

108. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

111. Cycas is similar to a mustard plant :

 
 
 
 

112. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

115. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

120. Virus and bacteriophage are made-up of:

 
 
 
 

121. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

123. Triple antigen injection or vaccine are for:

 
 
 
 

124. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

127. The megasporangium of Selaginella is:

 
 
 
 

128. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

136. Which of the following does not contain chlorophyll?

 
 
 
 

137. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

139. Bacteria growing on synthetic medium are called:

 
 
 
 

140. The orders generally have the uniform endings:

 
 
 
 

141. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

143. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

145. Ethylene oxide is widely used to:

 
 
 
 

146. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. Fruits are not found in:

 
 
 
 

150. Circular DNA is seen in:

 
 
 
 

151. In moss, reduction division occurs in :

 
 
 
 

152. Which is an edible fungus?

 
 
 
 

153. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

156. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

158. The largest alga is:

 
 
 
 

159. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

161. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

163. Club moss is the common name of :

 
 
 
 

164. Little leaf disease of Brinjal is caused by:

 
 
 
 

165. The sporophyte of Riccia is :

 
 
 
 

166. The chloroplast of Chlamydomonas are:

 
 
 
 

167. The fungi are usually:

 
 
 
 

168. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

171. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

174. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

176. Where does meiosis occur in yeast?

 
 
 
 

177. Cyanophage is a virus that attacks:

 
 
 
 

178. Bacteria are placed under:

 
 
 
 

179. The DNA of E coli is:

 
 
 
 

180. Green plants are classified as:

 
 
 
 

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

 
 
 
 

182. The gametophyte of fern bears:

 
 
 
 

183. Cap cells are found in the filament of:

 
 
 
 

184. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

185. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

187. The megaspore of Selaginella on germination produces:

 
 
 
 

188. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

190. Aflatoxin is produced as a product in :

 
 
 
 

191. Economic importance of bacteria lies in their being:

 
 
 
 

192. Ergot is obtained from :

 
 
 
 

193. The sporophyte of Riccia is represented by :

 
 
 
 

194. Nannandria are:

 
 
 
 

195. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

197. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

199. Most primitive embryophytes are placed in:

 
 
 
 

200. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

202. In a bacteriophage, DNA is present in:

 
 
 
 

203.

204. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

207. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

209. Penicillin is obtained from:

 
 
 
 

210. Vascular tissue is found in :

 
 
 
 

211. Cycas is :

 
 
 
 

212. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

214. Sexual reproduction in Rhizopus is by:

 
 
 
 

215. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

217. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

218. Chief constituents of bordeaux mixture are :

 
 
 
 

219. Bivalved siliceous shell or frustule occur in:

 
 
 
 

220. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

222. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

227. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

229. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

231. Most appropriate word for protozoans is:

 
 
 
 

232. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

234. The leaf of Cycas shows:

 
 
 
 

235. Detailed study of bacteriophage was made by:

 
 
 
 

236. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

239. Nitrogen-fixing bacteria may be located:

 
 
 
 

240. The first to isolate a plant virus was:

 
 
 
 

241. Spermatophyta are characterized by producing:

 
 
 
 

242. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

244. Which of the following are absent in Mycoplasma?

 
 
 
 

245. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

252. LSD is:

 
 
 
 

253. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

255. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

258. Gram stain is used to:

 
 
 
 

259. The nucleus of bacteria is:

 
 
 
 

260. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

262. The most primitive vascular plants is:

 
 
 
 

263. The middle sterile part of capsule is called:

 
 
 
 

264. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. Water-net is the name of:

 
 
 
 

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

 
 
 
 

269. Which is an exception to cell theory?

 
 
 
 

270. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

272. Which of the following lichens is harmful?

 
 
 
 

273. Fairy ring is the name given to:

 
 
 
 

274. Who discovered heterothallism in fungi?

 
 
 
 

275. Funaria is :

 
 
 
 

276. Anoxygenic photosynthesis occurs in:

 
 
 
 

277. Bacteria which are spherical are called:

 
 
 
 

278. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

280.

 

281. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

285. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

286. Pteridophytes are also known as :

 
 
 
 

287. Rhizoids of Riccia are :

 
 
 
 

288. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

292. Spirogyra differs from moss protonema in having :

 
 
 
 

293. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

295. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

297. Among the algae kelps are :

 
 
 
 

298. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

300. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

303. Protozoans are considered animals because these are:

 
 
 
 

304. Citrus canker is caused by:

 
 
 
 

305. The flagella of Chlamydomonas are:

 
 
 
 

306. In Selaginella, the microsporangia are:

 
 
 
 

307. Pasteurized milk is:

 
 
 
 

308. Protistan algae obtain their food as:

 
 
 
 

309. Which have the largest antherozoid?

 
 
 
 

310. Saccharomyces ludwigii ascus produces:

 
 
 
 

311. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

313. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

315. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

317. 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:

 
 
 
 

318. Lichens reproduce by :

 
 
 
 

319. The genetic material of poxvirus is:

 
 
 
 

320. The order generally ends with:

 
 
 
 

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

 
 
 
 

322. Which of the following have a prokaryotic cell?

 
 
 
 

323. Broad spectrum antibiotic is, which:

 
 
 
 

324. Bacteria are considered to be plants because they:

 
 
 
 

325. Red rot of sugarcane is caused by :

 
 
 
 

326. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

328. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

329. Black rust of wheat is caused by:

 
 
 
 

330. Vegetative reproduction in Cycas is by means of :

 
 
 
 

331. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

333. Ovary is absent in:

 
 
 
 

334. Black rust of wheat is caused by:

 
 
 
 

335. The fungi are mostly:

 
 
 
 

336. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

337. Soil fertility is lost by the activities of:

 
 
 
 

338. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

340. John Hutchinson divided dicots into two divisions:

 
 
 
 

341. Pythium debaryanum is the causative agent of:

 
 
 
 

342. The gametophyte produced by apospory is :

 
 
 
 

343. What is a vector?

 
 
 
 

344. 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:

 
 
 
 

345. The archegonia in Selaginella develop on:

 
 
 
 

346. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

349. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

351. Which fixes atmospheric nitrogen?

 
 
 
 

352. Rhizopus belongs to:

 
 
 
 

353. The most important property of yeast is:

 
 
 
 

354. The leafy fern plant represents the:

 
 
 
 

355. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

357. Winged pollen grains are found in :

 
 
 
 

358. Heterospory is the production of:

 
 
 
 

359. Heterocysts are found in :

 
 
 
 

360. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

362. The archegonia of Selaginella are differentiated by:

 
 
 
 

363. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

369. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

374. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

379. Botulinum toxin effects:

 
 
 
 

380. All archaebacteria lack:

 
 
 
 

381. Typhoid in man is caused by:

 
 
 
 

382. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

385. Leaf spot of groundnut is caused by :

 
 
 
 

386. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

388. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

391. Cycas is:

 
 
 
 

392. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

393. Cycas plant in appearance resembles :

 
 
 
 

394. The sporangia of Selaginella are attached:

 
 
 
 

395. Absorptive nutrition is:

 
 
 
 

396. Simple polyembryony is found in :

 
 
 
 

397. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

398. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

401. The root nodules of leguminous plants contain:

 
 
 
 

402. Multicellular and jacketed sex organs are found in :

 
 
 
 

403. Photoautotrophic bacteria have:

 
 
 
 

404. Citrus canker is caused by :

 
 
 
 

405. Which of the following is a monocot?

 
 
 
 

406. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

408. Cycas is different from mango in :

 
 
 
 

409. Reproduction in Cycas takes place by :

 
 
 
 

410. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

416. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

418. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

422. Most primitive kind of flower is represented by:

 
 
 
 

423. Pneumonia is caused by:

 
 
 
 

424. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

427. 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?

 
 
 
 

428. The fungi used as food are:

 
 
 
 

429. Ovules are not found enclosed in ovary of:

 
 
 
 

430. Viroids have:

 
 
 
 

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

 
 
 
 

432. Fertility of the soil is increased by:

 
 
 
 

433. Cycas revoluta is widely grown as :

 
 
 
 

434. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

436. One of the distinctive feature of Spirogyra is :

 
 
 
 

437. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

439. The Rhizopus gametes are formed in:

 
 
 
 

440. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

442. In Cycas:

 
 
 
 

443. Bacteria are found everywhere, except:

 
 
 
 

444. Fern phloem lacks:

 
 
 
 

445. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. All protozoans possess:

 
 
 
 

452. An alga which is rich in proteins:

 
 
 
 

453. The seedless plants which possess vascular tissues are:

 
 
 
 

454. In Cycas which structure is equivalent to stamen?

 
 
 
 

455. In binomial system most of the words are:

 
 
 
 

456. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. Usually, bacteria reproduce by:

 
 
 
 

463. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

465. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

467. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

470. Club moss and Peat moss belong to:

 
 
 
 

471. What is the role of nitrifying bacteria?

 
 
 
 

472. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

474. The similarity between cyanobacteria and bacteria:

 
 
 
 

475. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

480. Iodine is obtained from :

 
 
 
 

481. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

483. What is special feature of fern archegonia?

 
 
 
 

484. Which is a fungicide?

 
 
 
 

485. In angiosperms double fertilization represents:

 
 
 
 

486. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

489. The leaves of Funaria are :

 
 
 
 

490. 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:

 
 
 
 

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

 
 
 
 

492. Water-borne bacterial diseases are:

 
 
 
 

493. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

494. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

497. Genetic material of TMV is:

 
 
 
 

498. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

500. In Pteris, the archegonia are present:

 
 
 
 

501. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

503. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

510. Which organisms are the oldest life forms?

 
 
 
 

511. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

512. Which lichen is called Reindeer moss?

 
 
 
 

513. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

516. Yeast is a source of:

 
 
 
 

517. 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:

 
 
 
 

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

 
 
 
 

519. Selaginella differs from Moss in having:

 
 
 
 

520. The upper region of moss capsule is :

 
 
 
 

521. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

525. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

527. Chemosynthetic bacteria are:

 
 
 
 

528. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

529. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. Chemosynthetic bacteria are:

 
 
 
 

533. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. Proembryo in Pinus is :

 
 
 
 

538. Winged seeds are found in :

 
 
 
 

539. Which is not true for Escherichia coli?

 
 
 
 

540. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

542. In Gymnosperms endosperm is a:

 
 
 
 

543. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

545. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

548. Which of the following is sago palm?

 
 
 
 

549. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

553. Ovary is absent in :

 
 
 
 

554. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

556. Which of the following is true for viruses?

 
 
 
 

557. The sexual reproductive organs in Rhizopus are:

 
 
 
 

558. Some biologists have used the term Mycetozoa for:

 
 
 
 

559. The antherozoids of Funaria are :

 
 
 
 

560. The smallest unit of classification is:

 
 
 
 

561. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

564. Antibiotic has been extracted from :

 
 
 
 

565. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

576. Viruses have:

 
 
 
 

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

 
 
 
 

578. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

580. Pasteur is famous for his:

 
 
 
 

581. Pollination drop is:

 
 
 
 

582. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

583. Total parasites belong to:

 
 
 
 

584. Pollination in Cycas takes place by :

 
 
 
 

585. Male gametophyte of Selaginella is found:

 
 
 
 

586. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

592. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

595. Which of the following is true for Selaginella?

 
 
 
 

596. The two conjugating gametangia of Rhizopus are:

 
 
 
 

597. Funaria is a Bryophyta because :

 
 
 
 

598. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

600. Select the wrong statement:

 
 
 
 

601. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

608. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

610.

611. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

614. Helotism word is used for the symbiosis between :

 
 
 
 

615. Azolla and Salvinia both are:

 
 
 
 

616. The phloem of vascular system of Cycas is :

 
 
 
 

617. Which condition is found in Cycas?

 
 
 
 

618. Diphtheria is caused by:

 
 
 
 

619. Embryophyta includes :

 
 
 
 

620. Protists which are diploid reproduce sexually by:

 
 
 
 

621. In Herpes virus DNA is:

 
 
 
 

622. Maximum diversity of life forms occurs in :

 
 
 
 

623. Tautonyms are illegitimate in:

 
 
 
 

624. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

625. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

627. The prothallus of fern represents the plant:

 
 
 
 

628. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

630. 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:

 
 
 
 

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

 
 
 
 

632. Fern prothallus is:

 
 
 
 

633. Redness of red sea is due to :

 
 
 
 

634. E coli is a:

 
 
 
 

635. Fruits are not found in :

 
 
 
 

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

 
 
 
 

637. Facultative saprophyte is:

 
 
 
 

638. Clostridium can:

 
 
 
 

639. Which is the correct statement about Selaginella?

 
 
 
 

640. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

646. Most of the algae are :

 
 
 
 

647. Ovules are not found enclosed in ovary in :

 
 
 
 

648. Who among the following discovered virus?

 
 
 
 

649. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

652. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

654. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

656. Facultative parasite is:

 
 
 
 

657. The spur of Pinus roxburghii has :

 
 
 
 

658. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

660. All algae have:

 
 
 
 

661. Sexual reproduction of lichen is due to :

 
 
 
 

662. Select the wrong statement:

 
 
 
 

663. Pseudomycelium is found in:

 
 
 
 

664. The ascus of yeast contains:

 
 
 
 

665. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

667. Synzoospore is produced in:

 
 
 
 

668. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. The chief characteristic of class Ascomycetes is:

 
 
 
 

673. Antibiotics cure the disease by:

 
 
 
 

674. Disease resistant plant varieties can be produced by :

 
 
 
 

675. Which of the following is a parasitic algae?

 
 
 
 

676. Fruiting body of lichens is :

 
 
 
 

677. Funaria are commonly found :

 
 
 
 

678. The gametophyte of fern is as:

 
 
 
 

679. Heterosporous pteridophytes always form:

 
 
 
 

680. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

682. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

684. Mycoplasma is different from bacteria due to:

 
 
 
 

685. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

693. Lichens show :

 
 
 
 

694. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

696. Etiology includes the study of :

 
 
 
 

697. Azolla growing in paddy fields helps in:

 
 
 
 

698. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

701. The ferns are usually found:

 
 
 
 

702. Iodine is obtained from:

 
 
 
 

703. Infective part of virus was discovered by:

 
 
 
 

704. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

706. Sporophyte of fern is:

 
 
 
 

707. Saccharomyces is well known for:

 
 
 
 

708. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

710. Saccharomyces is used in:

 
 
 
 

711. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

713. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

715. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

726. True sexuality is not found in:

 
 
 
 

727. Roots are absent in :

 
 
 
 

728. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

730. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

731. Liverworts are included in :

 
 
 
 

732. Metulae are found in:

 
 
 
 

733. Interferon is a:

 
 
 
 

734. Ectocarpus produces:

 
 
 
 

735. Lichen show :

 
 
 
 

736. Centric discoid form of diatom is:

 
 
 
 

737. Pinus is:

 
 
 
 

738. 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?

 
 
 
 

739. Gametophyte is the main plant body in :

 
 
 
 

740. Funaria is :

 
 
 
 

741. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

747. Special feature of pollen grains of Pinus is :

 
 
 
 

748. Rhizophore of Selaginella is:

 
 
 
 

749. Which of the following are included in Tracheophyta?

 
 
 
 

750. Who named prion?

 
 
 
 

751. The rhizoids of Funaria are :

 
 
 
 

752. Green plants are classified as :

 
 
 
 

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

 
 
 
 

754. Number of capsomeres forming capsid of TMV is:

 
 
 
 

755. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

757. Lichens form the first community in

 
 
 
 

758. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

762. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

764. 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:

 
 
 
 

765. Lichens reproduce by :

 
 
 
 

766. Sometimes the bacterial cell is enclosed in:

 
 
 
 

767. The fungi that grow on wood are called:

 
 
 
 

768. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

770. Which one of the following is a monocot?

 
 
 
 

771. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

773. Bacteria were first discovered by:

 
 
 
 

774. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

778. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

779. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

782. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

784. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

786. Seeds are characteristically found in :

 
 
 
 

787. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

789. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

799. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

801. Which is a redwood tree?

 
 
 
 

802. In a diplontic life cycle:

 
 
 
 

803. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

806. Choose the correct statement about Spirogyra:

 
 
 
 

807. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

812. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

816. The lambda phase is a:

 
 
 
 

817. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

818. The chloroplast in Ulothrix is :

 
 
 
 

819. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

822. Penicillin was discovered by:

 
 
 
 

823. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

825. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

828. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

830. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

835. The fern plant is:

 
 
 
 

836. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

840. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

842. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

844. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

847. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. What are plasmids?

 
 
 
 

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

 
 
 
 

852. The chief characteristic of bryophyta is that :

 
 
 
 

853. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

854. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

856. Fern prothallus produces:

 
 
 
 

857. How a fern differs from a moss?

 
 
 
 

858. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

860. Bacteriophage consists of:

 
 
 
 

861. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

863. The leaves of Funaria are :

 
 
 
 

864. Which group of algae have an incipient nucleus?