Quiz_Random

1. Who discovered streptomycin?

 
 
 
 

2. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

4. Which of the following is a parasitic algae?

 
 
 
 

5. Pinus is:

 
 
 
 

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

 
 
 
 

7. Cyathia is characterized by:

 
 
 
 

8. All algae have:

 
 
 
 

9. Longest known virus is:

 
 
 
 

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

 
 
 
 

11. The role of meiosis is for:

 
 
 
 

12. The chief characteristic of bryophyta is that :

 
 
 
 

13. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

15. Embryophyta includes:

 
 
 
 

16. Selaginella differs from Moss in having:

 
 
 
 

17. Mucilaginous canals in Cycas are found in :

 
 
 
 

18. In Cycas microsporangia are borne on:

 
 
 
 

19. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

27. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

29. Club moss and Peat moss belong to:

 
 
 
 

30. Azolla and Salvinia both are:

 
 
 
 

31. Which is an exception to cell theory?

 
 
 
 

32. Antibiotics cure the disease by:

 
 
 
 

33. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

35. Funaria are commonly found :

 
 
 
 

36. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

38. Pinus microsporophyll bears:

 
 
 
 

39. The tallest moss in the world is :

 
 
 
 

40. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

46. The gametophyte of moss has distinct phases :

 
 
 
 

47. The fungi that grow on wood are called:

 
 
 
 

48. Bacteria differ from viruses in being sensitive to:

 
 
 
 

49. Rhizoids of Riccia are :

 
 
 
 

50. Maximum diversity of life forms occurs in :

 
 
 
 

51. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

53. Bivalved siliceous shell or frustule occur in:

 
 
 
 

54. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Photosynthetic protists belong to:

 
 
 
 

58. Total parasites belong to:

 
 
 
 

59. Cycas plant in appearance resembles :

 
 
 
 

60. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

62. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

64. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. Pinus gerardiana is :

 
 
 
 

71. The prothallus of fern represents the plant:

 
 
 
 

72. Citrus canker is caused by:

 
 
 
 

73. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

78. Which of the following does not contain chlorophyll?

 
 
 
 

79. Meristele of fern is:

 
 
 
 

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

 
 
 
 

81. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

86. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

88. NBG of Lucknow is now named as:

 
 
 
 

89. In Herpes virus DNA is:

 
 
 
 

90. The seedless plants which possess vascular tissues are:

 
 
 
 

91. The fungi are mostly:

 
 
 
 

92. Which is a tautonym?

 
 
 
 

93. The mode of nutrition of bacteria is usually:

 
 
 
 

94. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

96. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

98. Each chloroplast in Spirogyra bears :

 
 
 
 

99. A gill of Agaricus:

 
 
 
 

100. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

101. What are plasmids?

 
 
 
 

102. Bacteria are placed under:

 
 
 
 

103. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

105. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

107. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

109. Embryophyta includes :

 
 
 
 

110. Fertility of the soil is increased by:

 
 
 
 

111. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

113. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

115. Cap cells are found in the filament of:

 
 
 
 

116. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

118. Male gametes in Dryopteris are:

 
 
 
 

119. Bryophyta have a special character from other plants:

 
 
 
 

120. Iodine is obtained from:

 
 
 
 

121. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

124. Ectocarpus produces:

 
 
 
 

125. Climbers are found in genus:

 
 
 
 

126. Proembryo in Pinus is :

 
 
 
 

127. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

129. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

131. Who discovered heterothallism in fungi?

 
 
 
 

132. Lichens are pioneers of vegetation in a :

 
 
 
 

133. Acetobacter is useful in:

 
 
 
 

134. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

137. Plasmids are:

 
 
 
 

138. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

140. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

142. Tautonyms are illegitimate in:

 
 
 
 

143. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

147. Common phycobiont in a lichen is :

 
 
 
 

148. Funaria is a Bryophyta because :

 
 
 
 

149. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

151. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

154. Ginkgo biloba is a:

 
 
 
 

155. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

157. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

159. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

163. 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:

 
 
 
 

164. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

169. Ergot of rye is caused by:

 
 
 
 

170. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

172. Cycas is :

 
 
 
 

173. 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?

 
 
 
 

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

 
 
 
 

175. Enzymes are absent in:

 
 
 
 

176.

 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

181. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

183. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

186. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

188. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

190. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

192. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

195. Fruits are not found in:

 
 
 
 

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

 
 
 
 

197. Vegetative reproduction in Cycas is by means of :

 
 
 
 

198. Clostridium can:

 
 
 
 

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

 
 
 
 

200. Botulism is a:

 
 
 
 

201. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. Roots are absent in :

 
 
 
 

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

 
 
 
 

206. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

208. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

218. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

221. Some biologists have used the term Mycetozoa for:

 
 
 
 

222. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

224. Cyanophage is a virus that attacks:

 
 
 
 

225. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

227. Downy mildew disease is caused by :

 
 
 
 

228. Ovules are not found enclosed in ovary of:

 
 
 
 

229. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

232. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

234. The teeth of peristome of Funaria are :

 
 
 
 

235. The Rhizopus gametes are formed in:

 
 
 
 

236. Which is a redwood tree?

 
 
 
 

237. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

241. Lichen show :

 
 
 
 

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

 
 
 
 

243. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

245. Black rust of wheat is caused by:

 
 
 
 

246. The smallest bacterium is:

 
 
 
 

247. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

249. Genetic material of TMV is:

 
 
 
 

250. The disease symptom necrosis refers to :

 
 
 
 

251. . Tapetum develops in:

 
 
 
 

252. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. True sexuality is not found in:

 
 
 
 

256. In dinoflagellates, the two flagella are:

 
 
 
 

257. Smallpox is caused by:

 
 
 
 

258. In moss, conducting tissue is made up of

 
 
 
 

259. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

261. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

262. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

264. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

265. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

267. Black rust of wheat is caused by:

 
 
 
 

268. Pasteur is famous for his:

 
 
 
 

269. Which of the following lichens is harmful?

 
 
 
 

270. The chromosomal number in:

 
 
 
 

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

 
 
 
 

272. Pseudomycelium is found in:

 
 
 
 

273. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

276. Most primitive embryophytes are placed in:

 
 
 
 

277. Spores of which plants have chloroplast:

 
 
 
 

278. Banana bunchy top is caused by :

 
 
 
 

279. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

282. In moss, calyptra is formed from:

 
 
 
 

283. Bacteria are found everywhere, except:

 
 
 
 

284. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

286. The leaves of Funaria are :

 
 
 
 

287. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

290. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

291. Yeast belongs to class:

 
 
 
 

292. Viruses are considered to be:

 
 
 
 

293. The lambda phase is a:

 
 
 
 

294. The source of litmus is :

 
 
 
 

295. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

298. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

301. Which class of Protozoa includes all parasitic forms?

 
 
 
 

302. Redness of red sea is due to :

 
 
 
 

303. Disease resistant plant varieties can be produced by :

 
 
 
 

304. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

306. Soil fertility is lost by the activities of:

 
 
 
 

307. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

308. Seeds are characteristically found in:

 
 
 
 

309. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

314. The nucleus of bacteria is:

 
 
 
 

315. Which one of the following statement is wrong?

 
 
 
 

316. The chief characteristic of class Ascomycetes is:

 
 
 
 

317. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

319. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

324. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

325. 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:

 
 
 
 

326. Which is the correct statement about Selaginella?

 
 
 
 

327. Gram stain is used to:

 
 
 
 

328. What are Cyanobacteria?

 
 
 
 

329. Lichens reproduce by :

 
 
 
 

330. Citrus canker is caused by :

 
 
 
 

331. Some bacteria cannot be killed easily because of:

 
 
 
 

332. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. Which of the following are absent in Mycoplasma?

 
 
 
 

336. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

337. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

339. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

341. Viruses are commonly transmitted in plants through:

 
 
 
 

342. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

346. Woody climbers are known as :

 
 
 
 

347. Synzoospore is produced in:

 
 
 
 

348. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Ovary is absent in :

 
 
 
 

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

 
 
 
 

354. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

358. Multicellular and jacketed sex organs are found in :

 
 
 
 

359. John Hutchinson divided dicots into two divisions:

 
 
 
 

360. Aflatoxin is produced by:

 
 
 
 

361. What is streptomycin?

 
 
 
 

362. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

364. Select the wrong statement:

 
 
 
 

365. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

369. The sporangiophores in Rhizopus are:

 
 
 
 

370. LSD is:

 
 
 
 

371. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

374. Diphtheria is caused by:

 
 
 
 

375. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

377. Gametophyte is the main plant body in :

 
 
 
 

378. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

379. The zygospore in Rhizopus on germination forms:

 
 
 
 

380. Rhizopus and yeast are usually:

 
 
 
 

381. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

383. Funaria can be differentiated from Cycas :

 
 
 
 

384. Parmelia belongs to :

 
 
 
 

385. Chemosynthetic bacteria are:

 
 
 
 

386. Which of the following have algal zone?

 
 
 
 

387. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

395. The roots of Cycas are :

 
 
 
 

396. Which is an edible fungus?

 
 
 
 

397. Chemosynthetic bacteria are:

 
 
 
 

398. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

400. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

403. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

409. The fern plant is:

 
 
 
 

410. Reserve food in Euglena is:

 
 
 
 

411. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

415. Lichens are the indicator of pollution :

 
 
 
 

416. Nitrogen-fixing bacteria may be located:

 
 
 
 

417. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. The fungi used as food are:

 
 
 
 

421. Heterospory is the production of:

 
 
 
 

422. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

424. The stele of Dryopteris is a:

 
 
 
 

425. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

430. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

432. Mixed cropping helps :

 
 
 
 

433. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

438. All protozoans possess:

 
 
 
 

439. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

442. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

444. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

446. Metulae are found in:

 
 
 
 

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

 
 
 
 

448. Nannandria are:

 
 
 
 

449. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

451. Ovary is absent in:

 
 
 
 

452. Which of the following are included in Tracheophyta?

 
 
 
 

453. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

455. E coli is a:

 
 
 
 

456. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

458. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

460. Lichens form the first community in

 
 
 
 

461. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. The sori in Dryopteris are found on:

 
 
 
 

466. Mostly type of zygospore in Ulothrix is:

 
 
 
 

467. Fruits are not found in Cycas because:

 
 
 
 

468. Halophiles are the bacteria that require for growth:

 
 
 
 

469. Generic name of mango is:

 
 
 
 

470. Iodine is obtained from :

 
 
 
 

471. Facultative parasite is:

 
 
 
 

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

 
 
 
 

473. In moss, peristomial teeth are:

 
 
 
 

474. Which among the following is a shrub?

 
 
 
 

475. What is a vector?

 
 
 
 

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

 
 
 
 

477.

478. Yeast is a source of:

 
 
 
 

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

 
 
 
 

480. Sexual reproduction in Rhizopus is by:

 
 
 
 

481. Mycoplasma is different from bacteria due to:

 
 
 
 

482. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

487. Chief constituents of bordeaux mixture are :

 
 
 
 

488. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

490. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

492. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

494. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

497. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

500. Which condition is found in Cycas?

 
 
 
 

501. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

503. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

512. Ulothrix produces :

 
 
 
 

513. The two conjugating gametangia of Rhizopus are:

 
 
 
 

514. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. The term stele was given by:

 
 
 
 

519. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

523. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

525. Which lichen is called Reindeer moss?

 
 
 
 

526. Polystelic condition is found in:

 
 
 
 

527. Endemic plants are characterised by their:

 
 
 
 

528. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

530. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

535. Funaria is :

 
 
 
 

536. The lichens growing on rocks are called :

 
 
 
 

537. Psilotum is:

 
 
 
 

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

 
 
 
 

539. Liverworts are included in :

 
 
 
 

540. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

542. Lichens show :

 
 
 
 

543. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

545. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

548. Which is a fungicide?

 
 
 
 

549. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

551. In a bacteriophage, DNA is present in:

 
 
 
 

552. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

554. Which of the following is true for viruses?

 
 
 
 

555. Cell walls of Gram-positive bacteria contain:

 
 
 
 

556. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

558. Vascular cryptogam is the term used for :

 
 
 
 

559. The Rhizopus is:

 
 
 
 

560. Cryptogams include :

 
 
 
 

561. Most of the lichens are composed of :

 
 
 
 

562. To which class Riccia belongs :

 
 
 
 

563. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

564. Red rot of sugarcane is caused by :

 
 
 
 

565. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

567. Which causes red tide?

 
 
 
 

568. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

574. Pollination in Pinus is :

 
 
 
 

575. Funaria is :

 
 
 
 

576. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

579. Enteric bacteria are those bacteria that live:

 
 
 
 

580. Most appropriate word for protozoans is:

 
 
 
 

581. Photosynthetic bacteria have:

 
 
 
 

582. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

587. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

589. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

592. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

594. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

596. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

598. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. Cycas is similar to a mustard plant :

 
 
 
 

602. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

603. White rust of crucifers is caused by:

 
 
 
 

604. Most common type of conjugation in Spirogyra is :

 
 
 
 

605. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

608. The archegonia of Selaginella are differentiated by:

 
 
 
 

609. The group algae possesses representatives belonging to kingdom:

 
 
 
 

610. Etiology includes the study of :

 
 
 
 

611. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

613. Photoautotrophic bacteria have:

 
 
 
 

614. Why is Cycas called a living fossil?

 
 
 
 

615. The male gametes of Pinus are :

 
 
 
 

616. Penicillin is obtained from:

 
 
 
 

617. Fruits are not found in :

 
 
 
 

618. Choose the correct statement about Spirogyra:

 
 
 
 

619. Anoxygenic photosynthesis occurs in:

 
 
 
 

620. 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:

 
 
 
 

621. The fungi are usually:

 
 
 
 

622. The antibiotic is obtained from:

 
 
 
 

623. Infective part of virus was discovered by:

 
 
 
 

624. Male gametophyte of Selaginella is found:

 
 
 
 

625. TMV was isolated in crystalline form by:

 
 
 
 

626. Among the algae kelps are :

 
 
 
 

627. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

629. Bacteriophage consists of:

 
 
 
 

630. Red rot of sugarcane is caused by :

 
 
 
 

631. In Cycas the fertilization is:

 
 
 
 

632. Green plants are classified as :

 
 
 
 

633. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. Most primitive group of vascular plants are:

 
 
 
 

637. Azolla growing in paddy fields helps in:

 
 
 
 

638. Vascular cryptogams is the term used for:

 
 
 
 

639. Ovules are not found enclosed in ovary in :

 
 
 
 

640. Water bloom is generally caused by :

 
 
 
 

641. 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:

 
 
 
 

642. Agar-agar is obtained from:

 
 
 
 

643. Leaf spot of groundnut is caused by :

 
 
 
 

644. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

646. Which have the largest antherozoid?

 
 
 
 

647. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

650. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

652. Mycoplasma are sensitive to:

 
 
 
 

653. In Funaria, calyptra is derived from :

 
 
 
 

654. The most important property of yeast is:

 
 
 
 

655. Placenta in fern is:

 
 
 
 

656. Seeds are characteristically found in :

 
 
 
 

657. The ferns are usually found:

 
 
 
 

658. Which of the following is true for Selaginella?

 
 
 
 

659. Spermatophyta are characterized by producing:

 
 
 
 

660. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

664.

665. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

666. Bacteria growing on synthetic medium are called:

 
 
 
 

667. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

668. The spermatozoids of Cycas are :

 
 
 
 

669. 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?

 
 
 
 

670. The tree fern is:

 
 
 
 

671. The megaspore of Selaginella on germination produces:

 
 
 
 

672. Helotism word is used for the symbiosis between :

 
 
 
 

673. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

678. Linnaeus is credited with introducing:

 
 
 
 

679. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

682. Club moss is the common name of :

 
 
 
 

683. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. In moss, stomata are found:

 
 
 
 

687. 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:

 
 
 
 

688. Rhizopus belongs to:

 
 
 
 

689. Detailed study of bacteriophage was made by:

 
 
 
 

690. Which organisms are the oldest life forms?

 
 
 
 

691. Winged seeds are found in :

 
 
 
 

692. Vascular tissue is found in :

 
 
 
 

693. In binomial system most of the words are:

 
 
 
 

694. The gametophyte produced by apospory is :

 
 
 
 

695. Fern plants are:

 
 
 
 

696. The central part of Funaria axis is :

 
 
 
 

697. Pasteurized milk is:

 
 
 
 

698. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

699. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

701. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

703. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

705. Protists which are diploid reproduce sexually by:

 
 
 
 

706. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

709. Winged pollen grains are found in :

 
 
 
 

710. In tracheophyta:

 
 
 
 

711. How a fern differs from a moss?

 
 
 
 

712. The chloroplast in Ulothrix is :

 
 
 
 

713. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

715. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

718. Fern prothallus produces:

 
 
 
 

719. Pollination drop is:

 
 
 
 

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

 
 
 
 

721. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

724. The megasporangium of Selaginella is:

 
 
 
 

725. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

726. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

728. Pollination in Cycas takes place by :

 
 
 
 

729. Select the wrong statement:

 
 
 
 

730. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

737. In moss, sporophyte is formed on:

 
 
 
 

738. Special feature of pollen grains of Pinus is :

 
 
 
 

739. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

741. Pteridophyta are also called:

 
 
 
 

742. Ovules are not found enclosed in ovary in :

 
 
 
 

743. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

745. Saccharomyces ludwigii ascus produces:

 
 
 
 

746. Nitrifying bacteria play an important role by converting:

 
 
 
 

747. Fern phloem lacks:

 
 
 
 

748. Wine turns sour because of:

 
 
 
 

749. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

751. Transfusion tissue is present in the leaflet of:

 
 
 
 

752. The order generally ends with:

 
 
 
 

753. The disease apple scab is caused by:

 
 
 
 

754. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

756. The coralloid roots are :

 
 
 
 

757. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

760. In Cycas:

 
 
 
 

761. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

763. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

768. Amoeba is a member of the phylum:

 
 
 
 

769. Mycoplasma was discovered by:

 
 
 
 

770. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

772. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

776. Streptomyces falls under:

 
 
 
 

777. Methanogens belong to:

 
 
 
 

778. Most of the algae are :

 
 
 
 

779. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

783. Which of the following applies to Selaginella?

 
 
 
 

784. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

787. Number of capsomeres forming capsid of TMV is:

 
 
 
 

788. In Gymnocarpeae the fruiting body is :

 
 
 
 

789. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

791. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

799. Most primitive embryophytes are placed in :

 
 
 
 

800. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

802. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

805. Viroids have:

 
 
 
 

806. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

809. The antherozoids of Funaria are :

 
 
 
 

810. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

812. Economic importance of bacteria lies in their being:

 
 
 
 

813. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

815. In Cycas which structure is equivalent to stamen?

 
 
 
 

816. The photosynthetic protists are:

 
 
 
 

817. Water-net is the name of:

 
 
 
 

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

 
 
 
 

819. The upper region of moss capsule is :

 
 
 
 

820. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

822. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

824. Streptomycin is obtained from:

 
 
 
 

825. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

827. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

830. Who among the following discovered virus?

 
 
 
 

831. Virion refers to:

 
 
 
 

832. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

834. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

840. Where does meiosis occur in yeast?

 
 
 
 

841. Cycas is:

 
 
 
 

842. The vascular bundles of Cycas stem are :

 
 
 
 

843. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

846. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

848.

849. Which group of algae have an incipient nucleus?

 
 
 
 

850. The alga, Spirogyra are found in :

 
 
 
 

851. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

855. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

858. To which country Antony van Leeuwenhoek belong?

 
 
 
 

859. 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?

 
 
 
 

860. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

862. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

863. How is moss different from fern?

 
 
 
 

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