Quiz_Random

1. The prothallus of fern is:

 
 
 
 

2. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

3. Which causes red tide?

 
 
 
 

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

 
 
 
 

5. Vascular tissue is found in :

 
 
 
 

6. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

8. Which statement is wrong in regard to bacteria?

 
 
 
 

9. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

11. Viruses are commonly transmitted in plants through:

 
 
 
 

12. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. Aflatoxin is produced as a product in :

 
 
 
 

17. In Funaria :

 
 
 
 

18. Mycoplasma contains:

 
 
 
 

19. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

26. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

30. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

32. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Oswald Tippo’s classification was based on :

 
 
 
 

41. Plasmids are:

 
 
 
 

42. NBG of Lucknow is now named as:

 
 
 
 

43. Pasteurized milk is:

 
 
 
 

44. 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?

 
 
 
 

45. Gametophyte is the main plant body in :

 
 
 
 

46. Lichens form the first community in

 
 
 
 

47. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. 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:

 
 
 
 

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

 
 
 
 

53. Which of the following have a prokaryotic cell?

 
 
 
 

54. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

56. 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?

 
 
 
 

57. Maximum diversity of life forms occurs in :

 
 
 
 

58. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

66. The most primitive vascular plants is:

 
 
 
 

67. The disease symptom necrosis refers to :

 
 
 
 

68. Who discovered cyanophages?

 
 
 
 

69. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. To which class Riccia belongs :

 
 
 
 

74. Which of the following have algal zone?

 
 
 
 

75. Halophiles are the bacteria that require for growth:

 
 
 
 

76. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. The zoospores of Ulothrix are :

 
 
 
 

80. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

82. Redness of red sea is due to :

 
 
 
 

83. Endemic plants are characterised by their:

 
 
 
 

84. Mixed cropping helps :

 
 
 
 

85. Acellular slime mold is/are:

 
 
 
 

86. . Tapetum develops in:

 
 
 
 

87. Common phycobiont in a lichen is :

 
 
 
 

88. Black rust of wheat is caused by:

 
 
 
 

89. Bacteria differ from viruses in being sensitive to:

 
 
 
 

90. Pasteur is famous for his:

 
 
 
 

91. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

96. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. The two conjugating gametangia of Rhizopus are:

 
 
 
 

100. Lichens are pioneers of vegetation in a :

 
 
 
 

101. Acetobacter is useful in:

 
 
 
 

102. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

103. Antibiotics cure the disease by:

 
 
 
 

104. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

105. Centric discoid form of diatom is:

 
 
 
 

106. The zygospore in Rhizopus on germination forms:

 
 
 
 

107. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

109. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Funaria are commonly found :

 
 
 
 

113. Water-borne bacterial diseases are:

 
 
 
 

114. In Funaria, calyptra is derived from :

 
 
 
 

115. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. Pythium debaryanum is the causative agent of:

 
 
 
 

119. In Cycas the fertilization is:

 
 
 
 

120. Most of the algae are :

 
 
 
 

121. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

124. All archaebacteria lack:

 
 
 
 

125. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. Heterocysts are found in :

 
 
 
 

129. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

131. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

134. Enzymes are absent in:

 
 
 
 

135. Mycoplasma are:

 
 
 
 

136. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

138. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

140. Choose the correct statement about Spirogyra:

 
 
 
 

141. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

145. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. Water-net is the name of:

 
 
 
 

150. The antherozoids of Funaria are :

 
 
 
 

151. Red rot of sugarcane is caused by:

 
 
 
 

152. The order generally ends with:

 
 
 
 

153. The leaves of Funaria are :

 
 
 
 

154. True sexuality is not found in:

 
 
 
 

155. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

157. The mode of nutrition of bacteria is usually:

 
 
 
 

158. The largest alga is:

 
 
 
 

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

 
 
 
 

160. Psilotum is:

 
 
 
 

161. Placenta in fern is:

 
 
 
 

162. The disease apple scab is caused by:

 
 
 
 

163. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

165. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. Bacteriophages have been used as:

 
 
 
 

169. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

170. Generic name of mango is:

 
 
 
 

171. In moss, sporogenous tissue arises from:

 
 
 
 

172. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

174. Sporophyte of Funaria is :

 
 
 
 

175. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

177. Nannandria are:

 
 
 
 

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

 
 
 
 

179. The flagella of Chlamydomonas are:

 
 
 
 

180. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

185. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

191. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

195. The rhizoids of Funaria are :

 
 
 
 

196. Most primitive group of vascular plants are:

 
 
 
 

197. Spirogyra represents the :

 
 
 
 

198. The fungi used as food are:

 
 
 
 

199. What is a vector?

 
 
 
 

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

 
 
 
 

201. In Gymnocarpeae the fruiting body is :

 
 
 
 

202. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

203. The teeth of peristome of Funaria are :

 
 
 
 

204. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

206. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

209. The photosynthetic protists are:

 
 
 
 

210. The smallest unit of classification is:

 
 
 
 

211. Pollination drop is:

 
 
 
 

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

 
 
 
 

213. The plants of Funaria grow :

 
 
 
 

214. The megasporangium of Selaginella is:

 
 
 
 

215. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

217. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

224. Pinus is:

 
 
 
 

225. Desired type of Cycas can be grown by:

 
 
 
 

226. Which is absent from the xylem of Cycas?

 
 
 
 

227. Which of the following is true for viruses?

 
 
 
 

228. Indusium in Dryopteris is:

 
 
 
 

229. Majority of lichens are :

 
 
 
 

230. Cycas is:

 
 
 
 

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

 
 
 
 

232. An Hfr bacterium is one that contains:

 
 
 
 

233. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

235. Most primitive embryophytes are placed in:

 
 
 
 

236. Which of the following are included in Tracheophyta?

 
 
 
 

237. Who named prion?

 
 
 
 

238. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

240. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

243. The leaf of Cycas shows:

 
 
 
 

244. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

250. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

252. The ferns are usually found:

 
 
 
 

253. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

255. Pollination in Pinus is :

 
 
 
 

256. Embryophyta includes :

 
 
 
 

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

 
 
 
 

258. Agar-agar is obtained from:

 
 
 
 

259. The chief characteristic of class Ascomycetes is:

 
 
 
 

260. In a bacteriophage, DNA is present in:

 
 
 
 

261. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

264. Which of the following are absent in Mycoplasma?

 
 
 
 

265. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

271. Metulae are found in:

 
 
 
 

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

 
 
 
 

273. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

280. Synzoospore is produced in:

 
 
 
 

281. Which of the following is sago palm?

 
 
 
 

282. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

285. The gametophyte of fern is as:

 
 
 
 

286. Which of the following is a heterosporous pteridophyte?

 
 
 
 

287. Cleavage polyembryony is found in :

 
 
 
 

288. Asexual reproductive body of Volvox is called:

 
 
 
 

289. Embryo formation is not known in :

 
 
 
 

290. Ethylene oxide is widely used to:

 
 
 
 

291. Mycoplasma is different from bacteria due to:

 
 
 
 

292. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

294. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

298. Red rot of sugarcane is caused by :

 
 
 
 

299. Protists which are diploid reproduce sexually by:

 
 
 
 

300. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

302. Total parasites belong to:

 
 
 
 

303. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

305. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

307. Heterospory and ligulate leaves are a feature of:

 
 
 
 

308. Bivalved siliceous shell or frustule occur in:

 
 
 
 

309. The fungi are mostly:

 
 
 
 

310. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

312. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. Which of the following applies to Selaginella?

 
 
 
 

316. Fruiting body of lichens is :

 
 
 
 

317. Male gametes in Dryopteris are:

 
 
 
 

318. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

324. Heterotrichous habit means :

 
 
 
 

325. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

327. Number of capsomeres forming capsid of TMV is:

 
 
 
 

328. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

330. Cycas is similar to a mustard plant :

 
 
 
 

331. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

333. Pythium debaryanum is the causative agent of:

 
 
 
 

334. The leaves of Funaria are :

 
 
 
 

335. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

337. The roots of Cycas are :

 
 
 
 

338. Black rust of wheat is caused by:

 
 
 
 

339. Some biologists have used the term Mycetozoa for:

 
 
 
 

340. Club moss and Peat moss belong to:

 
 
 
 

341. Select the wrong statement:

 
 
 
 

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

 
 
 
 

343. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

345. The lambda phase is a:

 
 
 
 

346. In Cycas microsporangia are borne on:

 
 
 
 

347. Which one of the following is a monocot?

 
 
 
 

348. Who among the following discovered virus?

 
 
 
 

349. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

354. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

356. Bacteriophage consists of:

 
 
 
 

357. Ginkgo biloba is a:

 
 
 
 

358. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

360. The seedless plants which possess vascular tissues are:

 
 
 
 

361. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

363. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

366. The tree fern is:

 
 
 
 

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

 
 
 
 

368. Vascular cryptogam is the term used for :

 
 
 
 

369. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

371. Water bloom is generally caused by :

 
 
 
 

372. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

375.

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

 
 
 
 

377. Saccharomyces is used in:

 
 
 
 

378. In Cycas:

 
 
 
 

379. Mostly type of zygospore in Ulothrix is:

 
 
 
 

380. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

382. The DNA of E coli is:

 
 
 
 

383. Bacteria growing on synthetic medium are called:

 
 
 
 

384. Which of the following does not contain chlorophyll?

 
 
 
 

385. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

387. The source of litmus is :

 
 
 
 

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

 
 
 
 

389. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

391. Botulism is a:

 
 
 
 

392. In moss, peristomial teeth are:

 
 
 
 

393. Which is the nuclear material in bacteria?

 
 
 
 

394. Streptomycin is obtained from:

 
 
 
 

395. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

397. Bryophyta have been placed in cryptogams because:

 
 
 
 

398. Saccharomyces ludwigii ascus produces:

 
 
 
 

399. The chloroplast in Ulothrix is :

 
 
 
 

400. Methanogens belong to:

 
 
 
 

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

 
 
 
 

402. White rust of crucifers is caused by:

 
 
 
 

403. In Pteris, the roots are:

 
 
 
 

404.

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

 
 
 
 

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

 
 
 
 

407. 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:

 
 
 
 

408. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

412. Smallpox is caused by:

 
 
 
 

413. Sporophyte of fern is:

 
 
 
 

414. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

416. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

418. The fern plant is:

 
 
 
 

419. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. Bacteria which are spherical are called:

 
 
 
 

424. Penicillin was discovered by:

 
 
 
 

425. Clostridium can:

 
 
 
 

426. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

429. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. Antibiotic has been extracted from :

 
 
 
 

434. In Cycas which structure is equivalent to stamen?

 
 
 
 

435. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

438. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

442. Typhoid in man is caused by:

 
 
 
 

443. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

445. The upper region of moss capsule is :

 
 
 
 

446. John Hutchinson divided dicots into two divisions:

 
 
 
 

447. Which of the following statements is not correct?

 
 
 
 

448. The chromosomal number in:

 
 
 
 

449. Azolla and Salvinia both are:

 
 
 
 

450. The fungi that grow on wood are called:

 
 
 
 

451. The tallest moss in the world is :

 
 
 
 

452. Some diseases caused by bacteria are:

 
 
 
 

453. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

455. What is mycorrhiza?

 
 
 
 

456. Quarantine regulations are concerned with:

 
 
 
 

457. The group algae possesses representatives belonging to kingdom:

 
 
 
 

458. Little leaf disease of Brinjal is caused by:

 
 
 
 

459. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

463. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

467. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

469. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

471. Wine turns sour because of:

 
 
 
 

472. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

474. Ovary is absent in:

 
 
 
 

475. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

481. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

487. Lichens show :

 
 
 
 

488. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

491. The middle sterile part of capsule is called:

 
 
 
 

492. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

495. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

496. Which of the following shows heterotrichous habit?

 
 
 
 

497. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

503. The chief characteristic of bryophyta is that :

 
 
 
 

504. Seeds are characteristically found in:

 
 
 
 

505. Cryptogams include :

 
 
 
 

506. Heterospory is the production of:

 
 
 
 

507. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

509. In moss, calyptra is formed from:

 
 
 
 

510. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

511. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514. Which of the following is a monocot?

 
 
 
 

515. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

517. What are plasmids?

 
 
 
 

518. In tracheophyta:

 
 
 
 

519. Where does meiosis occur in yeast?

 
 
 
 

520. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

523. In moss, conducting tissue is made up of

 
 
 
 

524. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. Viruses are considered to be:

 
 
 
 

529. Ergot of rye is caused by:

 
 
 
 

530. The sporangiophores in Rhizopus are:

 
 
 
 

531. Spermatophyta are characterized by producing:

 
 
 
 

532. What is absent in Deuteromycetes?

 
 
 
 

533. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. Which is not found in bacteria?

 
 
 
 

538. Which class of Protozoa includes all parasitic forms?

 
 
 
 

539. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. In moss, reduction division occurs in :

 
 
 
 

543. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

545. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

554. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

558. Vascular cryptogams is the term used for:

 
 
 
 

559. Rhizophore of Selaginella is:

 
 
 
 

560. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

562. Which one of the following statement is wrong?

 
 
 
 

563. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

565. Facultative parasite is:

 
 
 
 

566. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

568. Facultative saprophyte is:

 
 
 
 

569. Vegetative reproduction in Cycas is by means of :

 
 
 
 

570. Spores of which plants have chloroplast:

 
 
 
 

571. LSD is:

 
 
 
 

572. Triple antigen injection or vaccine are for:

 
 
 
 

573. Cycas is :

 
 
 
 

574. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

576. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

578. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

579. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

582. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

587. The fungi are usually:

 
 
 
 

588. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

590. Chief constituents of bordeaux mixture are :

 
 
 
 

591. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

593. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

595. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

597. The largest known bacterium is:

 
 
 
 

598. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. Lichens are ecologically important because :

 
 
 
 

604. Iodine is obtained from :

 
 
 
 

605. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

607. Which is a tautonym?

 
 
 
 

608. Smut of maize is caused by :

 
 
 
 

609. Cell walls of Gram-positive bacteria contain:

 
 
 
 

610. The sporophyte of Riccia is :

 
 
 
 

611. What is special feature of fern archegonia?

 
 
 
 

612. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

614. Most appropriate word for protozoans is:

 
 
 
 

615. Which group of algae have an incipient nucleus?

 
 
 
 

616. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. Pneumonia is caused by:

 
 
 
 

620. The first to isolate a plant virus was:

 
 
 
 

621. Cellular slime mold is:

 
 
 
 

622. Rhizoids of Riccia are :

 
 
 
 

623. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

624. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Late blight of potato is caused by :

 
 
 
 

628. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

630. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

633. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

635. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

637. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

638. Longest known virus is:

 
 
 
 

639. Photoautotrophic bacteria have:

 
 
 
 

640. Cyathia is characterized by:

 
 
 
 

641. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

643. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

645. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

647. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

649. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

650. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

653. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

655. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

660. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

662. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

664. Which fixes atmospheric nitrogen?

 
 
 
 

665. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

666. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

668. Sleeping sickness disease in man is caused by:

 
 
 
 

669. 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:

 
 
 
 

670. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

672. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

674. The microsporophylls on the cone of Cycas are :

 
 
 
 

675. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

677. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

679. The vascular bundles of Cycas stem are :

 
 
 
 

680. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

682. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

684. The smallest bacterium is:

 
 
 
 

685. The mycelium of Rhizopus is:

 
 
 
 

686. 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:

 
 
 
 

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

 
 
 
 

688. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

690. The archegonia in Selaginella develop on:

 
 
 
 

691. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

697. Kuru, a human disease is caused by:

 
 
 
 

698. Which is a fungicide?

 
 
 
 

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

 
 
 
 

700. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

702. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

706. Funaria is :

 
 
 
 

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

 
 
 
 

708. The term stele was given by:

 
 
 
 

709. Which of the following are included in Tracheophyta?

 
 
 
 

710. Cycas revoluta is widely grown as :

 
 
 
 

711. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

713. Fruits are not found in:

 
 
 
 

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

 
 
 
 

715. Rhizopus and yeast are usually:

 
 
 
 

716. Embryophyta includes:

 
 
 
 

717. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

719. Reserve food in Euglena is:

 
 
 
 

720. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

723. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

725. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. Nitrifying bacteria play an important role by converting:

 
 
 
 

730. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

732. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

734. In dinoflagellates, the two flagella are:

 
 
 
 

735. Mycoplasmas are not viruses in nature because:

 
 
 
 

736. In angiosperms double fertilization represents:

 
 
 
 

737. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

742. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

744. Select the wrong statement:

 
 
 
 

745. Cocci types of bacteria are:

 
 
 
 

746. The male gametes of Pinus are :

 
 
 
 

747. The coralloid roots are :

 
 
 
 

748. All protozoans possess:

 
 
 
 

749. The archegonia of Selaginella are differentiated by:

 
 
 
 

750. Interferon is a:

 
 
 
 

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

 
 
 
 

752. An alga which is rich in proteins:

 
 
 
 

753. Cycas plant in appearance resembles :

 
 
 
 

754. Bacteria are considered to be plants because they:

 
 
 
 

755. What are Cyanobacteria?

 
 
 
 

756. The development of sporangium in Selaginella is:

 
 
 
 

757. Club moss is the common name of :

 
 
 
 

758. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

761. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

763. The genetic material of poxvirus is:

 
 
 
 

764. Who discovered heterothallism in fungi?

 
 
 
 

765. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

767. The lichens growing on rocks are called :

 
 
 
 

768. In Gymnosperms endosperm is a:

 
 
 
 

769. Seeds are characteristically found in :

 
 
 
 

770. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

772.

773. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

774. Woody climbers are known as :

 
 
 
 

775. Fern plants are:

 
 
 
 

776. Gram stain is used to:

 
 
 
 

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

 
 
 
 

778. Circular DNA is seen in:

 
 
 
 

779. Germ theory of disease was proposed by:

 
 
 
 

780. Zoogametes are not found in:

 
 
 
 

781. Which bacteria convert nitrate into nitrogen?

 
 
 
 

782. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

785. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

789. Streptomyces falls under:

 
 
 
 

790. Funaria is :

 
 
 
 

791. Standard size of a herbarium sheet is:

 
 
 
 

792. Azolla growing in paddy fields helps in:

 
 
 
 

793. Which lichen is called Reindeer moss?

 
 
 
 

794. The orders generally have the uniform endings:

 
 
 
 

795. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

797. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

799. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

803. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

806. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

809. Leprosy is caused by:

 
 
 
 

810. Sexual reproduction in Rhizopus is by:

 
 
 
 

811. Each chloroplast in Spirogyra bears :

 
 
 
 

812. 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:

 
 
 
 

813. Meristele of fern is:

 
 
 
 

814. Bryophyta have a special character from other plants:

 
 
 
 

815. Green plants are classified as:

 
 
 
 

816. Green plants are classified as :

 
 
 
 

817. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

822. Fern prothallus is:

 
 
 
 

823. 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:

 
 
 
 

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

 
 
 
 

825. Spermatophyta are characterized by producing:

 
 
 
 

826. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

829. Bacteria were first discovered by:

 
 
 
 

830. Yeast belongs to class:

 
 
 
 

831. Reproduction in Cycas takes place by :

 
 
 
 

832. Viruses have:

 
 
 
 

833. 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?

 
 
 
 

834. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

836. Which is not true for Escherichia coli?

 
 
 
 

837. All algae have:

 
 
 
 

838. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

841.

 

842. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

844. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

846. Citrus canker is caused by :

 
 
 
 

847. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

849. A gill of Agaricus:

 
 
 
 

850. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

852. Lichen show :

 
 
 
 

853. Fruits are not found in :

 
 
 
 

854. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

856. The Rhizopus is:

 
 
 
 

857. How is moss different from fern?

 
 
 
 

858. Pinus gerardiana is :

 
 
 
 

859. Male gametophyte of Selaginella is found:

 
 
 
 

860. Liverworts are included in :

 
 
 
 

861. The antibiotic is obtained from:

 
 
 
 

862. Genetic material of TMV is:

 
 
 
 

863. Fruits are not found in Cycas because:

 
 
 
 

864. Amoeba is a member of the phylum: