Quiz_Random

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

9. In Gymnocarpeae the fruiting body is :

 
 
 
 

10. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. The sporophyte of Riccia is represented by :

 
 
 
 

14. Red rot of sugarcane is caused by :

 
 
 
 

15. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

17. Spirogyra represents the :

 
 
 
 

18. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

20. Which among the following is a shrub?

 
 
 
 

21. The spur of Pinus roxburghii has :

 
 
 
 

22. Bryophyta have been placed in cryptogams because:

 
 
 
 

23. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Which is not found in bacteria?

 
 
 
 

30. Psilotum is:

 
 
 
 

31. Methanogens belong to:

 
 
 
 

32. To which country Antony van Leeuwenhoek belong?

 
 
 
 

33. Which is a fungicide?

 
 
 
 

34. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

36. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. The nucleus of bacteria is:

 
 
 
 

41. The rhizoids of Funaria are :

 
 
 
 

42. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Reserve food in Euglena is:

 
 
 
 

49. Generic name of mango is:

 
 
 
 

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

 
 
 
 

51. Heterospory and ligulate leaves are a feature of:

 
 
 
 

52. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

55. 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:

 
 
 
 

56. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

57. Sometimes the bacterial cell is enclosed in:

 
 
 
 

58. The archegonia of Selaginella are differentiated by:

 
 
 
 

59. Diphtheria is caused by:

 
 
 
 

60. Fruits are not found in:

 
 
 
 

61. Protozoans are considered animals because these are:

 
 
 
 

62. Metulae are found in:

 
 
 
 

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

 
 
 
 

64. Who discovered cyanophages?

 
 
 
 

65. Virus and bacteriophage are made-up of:

 
 
 
 

66. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

68. Bivalved siliceous shell or frustule occur in:

 
 
 
 

69. Most of the algae are :

 
 
 
 

70. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

77. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. Smallpox is caused by:

 
 
 
 

81. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

83. In Pteris, the roots are:

 
 
 
 

84. Enteric bacteria are those bacteria that live:

 
 
 
 

85. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

87. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

92. Leprosy is caused by:

 
 
 
 

93. The chromosomal number in:

 
 
 
 

94. 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?

 
 
 
 

95. In Herpes virus DNA is:

 
 
 
 

96. Acetobacter is useful in:

 
 
 
 

97. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

105. The seedless plants which possess vascular tissues are:

 
 
 
 

106. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

108. Mycoplasmas are not viruses in nature because:

 
 
 
 

109. Cyanophage is a virus that attacks:

 
 
 
 

110.

111. In moss, peristomial teeth are:

 
 
 
 

112. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

115. Germ theory of disease was proposed by:

 
 
 
 

116. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

118. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

121. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

123. Ulothrix produces :

 
 
 
 

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

 
 
 
 

125. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

127. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

130. Centric discoid form of diatom is:

 
 
 
 

131. Bentham and Hooker placed gymnosperms:

 
 
 
 

132. Gymnosperms could also be called as:

 
 
 
 

133. Anoxygenic photosynthesis occurs in:

 
 
 
 

134. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. Bacteria were first discovered by:

 
 
 
 

139. Which of the following applies to Selaginella?

 
 
 
 

140. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

142. In moss, sporophyte is formed on:

 
 
 
 

143. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

146. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

148. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

150. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

152. Tautonyms are illegitimate in:

 
 
 
 

153. Infective part of virus was discovered by:

 
 
 
 

154. The fungi are mostly:

 
 
 
 

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

 
 
 
 

156. Fern prothallus is:

 
 
 
 

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

 
 
 
 

158. Rhizopus belongs to:

 
 
 
 

159. Which causes red tide?

 
 
 
 

160. 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:

 
 
 
 

161. Which is a tautonym?

 
 
 
 

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

 
 
 
 

163. Virion refers to:

 
 
 
 

164. Embryophyta includes :

 
 
 
 

165. The orders generally have the uniform endings:

 
 
 
 

166. Vascular cryptogam is the term used for :

 
 
 
 

167. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

169. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

172. Which of the following is true for Selaginella?

 
 
 
 

173. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

175. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

177. The mycelium of Rhizopus is:

 
 
 
 

178. Enzymes are absent in:

 
 
 
 

179. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

181. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

183. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

184. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

188. Agar-agar is obtained from:

 
 
 
 

189. Facultative saprophyte is:

 
 
 
 

190. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

191. Disease resistant plant varieties can be produced by :

 
 
 
 

192. The ferns are usually found:

 
 
 
 

193. Which organisms are the oldest life forms?

 
 
 
 

194. Placenta in fern is:

 
 
 
 

195. The lambda phase is a:

 
 
 
 

196. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

198. Desired type of Cycas can be grown by:

 
 
 
 

199. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

201. The chief characteristic of class Ascomycetes is:

 
 
 
 

202. Asexual reproductive body of Volvox is called:

 
 
 
 

203. Bacteria which are spherical are called:

 
 
 
 

204. Transfusion tissue is present in the leaflet of:

 
 
 
 

205. Some diseases caused by bacteria are:

 
 
 
 

206. The gametophyte of moss has distinct phases :

 
 
 
 

207. An Hfr bacterium is one that contains:

 
 
 
 

208. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

210. Streptomycin is obtained from:

 
 
 
 

211. Which is an edible fungus?

 
 
 
 

212. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

214. Typhoid in man is caused by:

 
 
 
 

215. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

219. True sexuality is not found in:

 
 
 
 

220. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

222. Heterocysts are found in :

 
 
 
 

223. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

225. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

228. Siphonogamy is found in:

 
 
 
 

229. Pasteur is famous for his:

 
 
 
 

230. In binomial system most of the words are:

 
 
 
 

231. Usually, bacteria reproduce by:

 
 
 
 

232. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

237. The lichens growing on rocks are called :

 
 
 
 

238. The root nodules of leguminous plants contain:

 
 
 
 

239. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

241. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

243. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

245. Ethylene oxide is widely used to:

 
 
 
 

246. Which is not true for Escherichia coli?

 
 
 
 

247. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

252. Ginkgo biloba is a:

 
 
 
 

253. 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?

 
 
 
 

254.

 

255. Rhizoids of Riccia are :

 
 
 
 

256. Etiology includes the study of :

 
 
 
 

257. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

259. Woody climbers are known as :

 
 
 
 

260. The coralloid roots are :

 
 
 
 

261. Most of the lichens are composed of :

 
 
 
 

262. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

265. Most primitive embryophytes are placed in:

 
 
 
 

266. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

268. Polystelic condition is found in:

 
 
 
 

269. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

271. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

274. Which of the following is a monocot?

 
 
 
 

275. Broad spectrum antibiotic is, which:

 
 
 
 

276. Economic importance of bacteria lies in their being:

 
 
 
 

277. The stele of Dryopteris is a:

 
 
 
 

278. Indusium in Dryopteris is:

 
 
 
 

279. Chemosynthetic bacteria are:

 
 
 
 

280. E coli is a:

 
 
 
 

281. Funaria are commonly found :

 
 
 
 

282. What is absent in Deuteromycetes?

 
 
 
 

283. John Hutchinson divided dicots into two divisions:

 
 
 
 

284. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

286. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

289. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

291. Streptomyces falls under:

 
 
 
 

292. Genetic material of TMV is:

 
 
 
 

293. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

295. To which class Riccia belongs :

 
 
 
 

296. Standard size of a herbarium sheet is:

 
 
 
 

297. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

301. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

306. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

310. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

314. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

317. Black rust of wheat is caused by:

 
 
 
 

318. Spermatophyta are characterized by producing:

 
 
 
 

319. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

321. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. Spores of which plants have chloroplast:

 
 
 
 

327. Black rust of wheat is caused by:

 
 
 
 

328. The sexual reproductive organs in Rhizopus are:

 
 
 
 

329. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

331. Water bloom is generally caused by :

 
 
 
 

332. 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:

 
 
 
 

333. Late blight of potato is caused by :

 
 
 
 

334. Lichens are the indicator of pollution :

 
 
 
 

335. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

338. Heterotrichous habit means :

 
 
 
 

339. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. The zoospores of Ulothrix are :

 
 
 
 

344. Fruits are not found in Cycas because:

 
 
 
 

345. The two conjugating gametangia of Rhizopus are:

 
 
 
 

346. Who discovered heterothallism in fungi?

 
 
 
 

347. The megaspore of Selaginella on germination produces:

 
 
 
 

348. Climbers are found in genus:

 
 
 
 

349. The Rhizopus is:

 
 
 
 

350. Which condition is found in Cycas?

 
 
 
 

351. The leaf of Cycas shows:

 
 
 
 

352. The Rhizopus gametes are formed in:

 
 
 
 

353. In Funaria :

 
 
 
 

354. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. Which of the following are included in Tracheophyta?

 
 
 
 

358. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

365. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

367. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

370. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

374. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

376. The spermatozoids of Cycas are :

 
 
 
 

377. Plasmids are:

 
 
 
 

378. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

380. Ovules are not found enclosed in ovary in :

 
 
 
 

381. One of the distinctive feature of Spirogyra is :

 
 
 
 

382. Acellular slime mold is/are:

 
 
 
 

383. In moss, stomata are found:

 
 
 
 

384. The first to isolate a plant virus was:

 
 
 
 

385. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

389. The sori in Dryopteris are found on:

 
 
 
 

390. Bacteria are considered to be plants because they:

 
 
 
 

391. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

392. The central part of Funaria axis is :

 
 
 
 

393. Pteridophyta are also called:

 
 
 
 

394. Pinus microsporophyll bears:

 
 
 
 

395. Lichens form the first community in

 
 
 
 

396. Penicillin is obtained from:

 
 
 
 

397. The DNA of E coli is:

 
 
 
 

398. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

402. Citrus canker is caused by:

 
 
 
 

403. The sporangium of fern contains nearly:

 
 
 
 

404. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

406. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

407. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

411. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

413.

414. Coenogamete is found in:

 
 
 
 

415. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

416. In Selaginella, the microsporangia are:

 
 
 
 

417. Which of the following have a prokaryotic cell?

 
 
 
 

418. Which is a gametophytic tissue?

 
 
 
 

419. Roots are absent in :

 
 
 
 

420. Sexual reproduction of lichen is due to :

 
 
 
 

421. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

427. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

429. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

431. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

433. The most primitive vascular plants is:

 
 
 
 

434. Mycoplasma was discovered by:

 
 
 
 

435. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

437. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

439. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

441. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

443. In a bacteriophage, DNA is present in:

 
 
 
 

444. Clostridium can:

 
 
 
 

445. Yeast belongs to class:

 
 
 
 

446. The chloroplast in Ulothrix is :

 
 
 
 

447. Ovules are not found enclosed in ovary in :

 
 
 
 

448. In moss, calyptra is formed from:

 
 
 
 

449. Which one of the following is a monocot?

 
 
 
 

450. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

452. In Funaria, calyptra is derived from :

 
 
 
 

453. Chemosynthetic bacteria are:

 
 
 
 

454. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

455. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

460. The order generally ends with:

 
 
 
 

461. Pinus is:

 
 
 
 

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

 
 
 
 

463. Amoeba is a member of the phylum:

 
 
 
 

464. The phloem of vascular system of Cycas is :

 
 
 
 

465. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

469. Protists which are diploid reproduce sexually by:

 
 
 
 

470. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

471. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

475. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

477. Which is an exception to cell theory?

 
 
 
 

478. Mostly type of zygospore in Ulothrix is:

 
 
 
 

479. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

483. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

485. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

486. Cycas is different from mango in :

 
 
 
 

487. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

491. Cellular slime mold is:

 
 
 
 

492. Total parasites belong to:

 
 
 
 

493. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

495. Azolla and Salvinia both are:

 
 
 
 

496. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

498. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

502. Discovery of penicillin was based on:

 
 
 
 

503. Bacteria growing on synthetic medium are called:

 
 
 
 

504. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

509. Saccharomyces is used in:

 
 
 
 

510. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

511. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

516. In Pteris, the archegonia are present:

 
 
 
 

517. Funaria is :

 
 
 
 

518. Proembryo in Pinus is :

 
 
 
 

519. Funaria is :

 
 
 
 

520. Which fixes atmospheric nitrogen?

 
 
 
 

521. Vegetative reproduction in Cycas is by means of :

 
 
 
 

522. Sporophyte of Funaria is :

 
 
 
 

523. Who named prion?

 
 
 
 

524. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

527. Ovary is absent in:

 
 
 
 

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

 
 
 
 

529. Bacteriophages have been used as:

 
 
 
 

530. Which have the largest antherozoid?

 
 
 
 

531. Ovules are not found enclosed in ovary of:

 
 
 
 

532. The young leaves of Cycas have :

 
 
 
 

533. An alga which is rich in proteins:

 
 
 
 

534. Most primitive embryophytes are placed in :

 
 
 
 

535. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

538. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

540. Viruses have:

 
 
 
 

541. Majority of lichens are :

 
 
 
 

542. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

545. The development of sporangium in Selaginella is:

 
 
 
 

546. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

553. Iodine is obtained from:

 
 
 
 

554. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

557. The archegonia in Selaginella develop on:

 
 
 
 

558. Maximum diversity of life forms occurs in :

 
 
 
 

559. Nitrifying bacteria play an important role by converting:

 
 
 
 

560. Select the wrong statement:

 
 
 
 

561. The alga, Spirogyra are found in :

 
 
 
 

562. Ovary is absent in :

 
 
 
 

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

 
 
 
 

564. Lichens reproduce by :

 
 
 
 

565. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

566. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

567. Lichens are indicators of :

 
 
 
 

568. Cleavage polyembryony is found in :

 
 
 
 

569. Fruits are not found in :

 
 
 
 

570. Oswald Tippo’s classification was based on :

 
 
 
 

571. Viruses are considered to be:

 
 
 
 

572. Which statement is wrong in regard to bacteria?

 
 
 
 

573. Photoautotrophic bacteria have:

 
 
 
 

574. In tracheophyta:

 
 
 
 

575. Pinus gerardiana is :

 
 
 
 

576. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

578. Green plants are classified as :

 
 
 
 

579. Citrus canker is caused by :

 
 
 
 

580. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

582. In angiosperms double fertilization represents:

 
 
 
 

583. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

585. Embryo formation is not known in :

 
 
 
 

586. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

588. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

590. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

596. Mucilaginous canals in Cycas are found in :

 
 
 
 

597. Circular DNA is seen in:

 
 
 
 

598. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

600. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

602. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

604. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

606. Cycas is similar to a mustard plant :

 
 
 
 

607. Embryophyta includes:

 
 
 
 

608. Red rot of sugarcane is caused by:

 
 
 
 

609. 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?

 
 
 
 

610. Red rot of sugarcane is caused by :

 
 
 
 

611. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. Which of the following shows heterotrichous habit?

 
 
 
 

617. Yeast grows more rapidly in:

 
 
 
 

618. Fern phloem lacks:

 
 
 
 

619. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

621. Mycoplasma are sensitive to:

 
 
 
 

622. Which lichen is called Reindeer moss?

 
 
 
 

623. Each chloroplast in Spirogyra bears :

 
 
 
 

624. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

626. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

628. The tree fern is:

 
 
 
 

629.

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

 
 
 
 

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

 
 
 
 

632. The smallest bacterium is:

 
 
 
 

633. Which of the following have algal zone?

 
 
 
 

634. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

636. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

638. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

641. LSD is:

 
 
 
 

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

 
 
 
 

643. Meiosis in Ulothrix takes place:

 
 
 
 

644. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

646. Isomorphic type alternation of generation is found in:

 
 
 
 

647. The fungi used as food are:

 
 
 
 

648. The antibiotic is obtained from:

 
 
 
 

649. The zygospore in Rhizopus on germination forms:

 
 
 
 

650. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

655. In dinoflagellates, the two flagella are:

 
 
 
 

656. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

659. Cycas is :

 
 
 
 

660. The role of meiosis is for:

 
 
 
 

661. Bacteriophage consists of:

 
 
 
 

662. Which of the following is true for viruses?

 
 
 
 

663. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

669. Longest known virus is:

 
 
 
 

670. Lichens show :

 
 
 
 

671. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

674. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

679. The fungi are usually:

 
 
 
 

680. The antherozoids of Funaria are :

 
 
 
 

681. Choose the correct statement about Spirogyra:

 
 
 
 

682. Water-net is the name of:

 
 
 
 

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

 
 
 
 

684. Yeast is a source of:

 
 
 
 

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

 
 
 
 

686. The source of litmus is :

 
 
 
 

687. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

689. Winged pollen grains are found in :

 
 
 
 

690. Winged seeds are found in :

 
 
 
 

691. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

693. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

698. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

702. Pteridophytes are also known as :

 
 
 
 

703. Pythium debaryanum is the causative agent of:

 
 
 
 

704. Fertility of the soil is increased by:

 
 
 
 

705. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

708. Vascular tissue is found in :

 
 
 
 

709. Ergot of rye is caused by:

 
 
 
 

710. Saccharomyces ludwigii ascus produces:

 
 
 
 

711. Fern plants are:

 
 
 
 

712. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

715. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

718. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

721. The tallest moss in the world is :

 
 
 
 

722. The gametophyte of fern bears:

 
 
 
 

723. Cyathia is characterized by:

 
 
 
 

724. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

728. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

731. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

733. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

736. Select the correct statement: (NEET 2016)

 
 
 
 

737. Male gametes in Dryopteris are:

 
 
 
 

738. Special feature of pollen grains of Pinus is :

 
 
 
 

739. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

744. 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:

 
 
 
 

745. Club moss is the common name of :

 
 
 
 

746. Meristele of fern is:

 
 
 
 

747. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

749. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. The prothallus of fern is:

 
 
 
 

755. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

756. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

758. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

761. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

765. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

767. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

768. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

770. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

773. The sporangiophores in Rhizopus are:

 
 
 
 

774. The photosynthetic protists are:

 
 
 
 

775. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

777. The fern plant is:

 
 
 
 

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

 
 
 
 

779. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

781. What is streptomycin?

 
 
 
 

782. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

785. Most common type of conjugation in Spirogyra is :

 
 
 
 

786. 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?

 
 
 
 

787. Reproduction in Cycas takes place by :

 
 
 
 

788. Nannandria are:

 
 
 
 

789. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. Which of the following statements is not correct?

 
 
 
 

793. In Cycas:

 
 
 
 

794. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

796. Penicillin was discovered by:

 
 
 
 

797. Some biologists have used the term Mycetozoa for:

 
 
 
 

798. Linnaeus is credited with introducing:

 
 
 
 

799. Most appropriate word for protozoans is:

 
 
 
 

800. The largest alga is:

 
 
 
 

801. Which is the correct statement about Selaginella?

 
 
 
 

802. The similarity between cyanobacteria and bacteria:

 
 
 
 

803. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

809. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

812. The term stele was given by:

 
 
 
 

813. Most resistant spore in bacteria is:

 
 
 
 

814. Common phycobiont in a lichen is :

 
 
 
 

815. How is moss different from fern?

 
 
 
 

816. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

818. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

823. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

825. Banana bunchy top is caused by :

 
 
 
 

826. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

828. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

832. The gametophyte produced by apospory is :

 
 
 
 

833. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

835. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

841. Helotism word is used for the symbiosis between :

 
 
 
 

842. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

844. Liverworts are included in :

 
 
 
 

845. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

847. Zoogametes are not found in:

 
 
 
 

848. In Cycas which structure is equivalent to stamen?

 
 
 
 

849. Pollination drop is:

 
 
 
 

850. Among the algae kelps are :

 
 
 
 

851. Chief constituents of bordeaux mixture are :

 
 
 
 

852. All protozoans possess:

 
 
 
 

853. Lichens are ecologically important because :

 
 
 
 

854. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

856. The mode of nutrition of bacteria is usually:

 
 
 
 

857. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

859. Ergot is obtained from :

 
 
 
 

860. Ectocarpus produces:

 
 
 
 

861. Which is a redwood tree?

 
 
 
 

862. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

864. 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: