Quiz_Random

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

 
 
 
 

2. In Pteris, the roots are:

 
 
 
 

3. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

4. Discovery of penicillin was based on:

 
 
 
 

5. Endemic plants are characterised by their:

 
 
 
 

6. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

8. The development of Selaginella embryo is:

 
 
 
 

9. Which of the following is true for Selaginella?

 
 
 
 

10. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Desired type of Cycas can be grown by:

 
 
 
 

15. Green plants are classified as :

 
 
 
 

16. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

19. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

25. Gymnosperms could also be called as:

 
 
 
 

26. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Diphtheria is caused by:

 
 
 
 

30. Kuru, a human disease is caused by:

 
 
 
 

31. The Rhizopus is:

 
 
 
 

32. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

36. Water bloom is generally caused by :

 
 
 
 

37. Rhizophore of Selaginella is:

 
 
 
 

38. Mycoplasma is different from bacteria due to:

 
 
 
 

39. Mucilaginous canals in Cycas are found in :

 
 
 
 

40. In moss, conducting tissue is made up of

 
 
 
 

41. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. What is streptomycin?

 
 
 
 

45. In Funaria :

 
 
 
 

46. Green plants are classified as:

 
 
 
 

47. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Spores of which plants have chloroplast:

 
 
 
 

57. Quarantine regulations are concerned with:

 
 
 
 

58. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

60. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Streptomyces falls under:

 
 
 
 

64. Which among the following is a shrub?

 
 
 
 

65. The sporangiophores in Rhizopus are:

 
 
 
 

66. Wine turns sour because of:

 
 
 
 

67. Which statement is wrong in regard to bacteria?

 
 
 
 

68. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

70. Diploxylic vascular bundles are found in:

 
 
 
 

71. The fungi are usually:

 
 
 
 

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

 
 
 
 

73. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

75. Clostridium can:

 
 
 
 

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

 
 
 
 

77. Ovary is absent in :

 
 
 
 

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

 
 
 
 

79. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Longest known virus is:

 
 
 
 

83. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

84. Heterospory and ligulate leaves are a feature of:

 
 
 
 

85. Which causes red tide?

 
 
 
 

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

 
 
 
 

87. Club moss is the common name of :

 
 
 
 

88. Sporophyte of Funaria is :

 
 
 
 

89. In Cycas:

 
 
 
 

90. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

92. Genetic material of TMV is:

 
 
 
 

93. Small epidermal swellings due to infection are called :

 
 
 
 

94. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

97. The lambda phase is a:

 
 
 
 

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

 
 
 
 

99. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

101. Antibiotics cure the disease by:

 
 
 
 

102. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

105. In Gymnosperms endosperm is a:

 
 
 
 

106. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

108. Psilotum is:

 
 
 
 

109. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

113. Polystelic condition is found in:

 
 
 
 

114. Yeast is a source of:

 
 
 
 

115. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

121. Vascular cryptogam is the term used for :

 
 
 
 

122. Roots are absent in :

 
 
 
 

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

 
 
 
 

124. Embryophyta includes :

 
 
 
 

125. The archegonia of Selaginella are differentiated by:

 
 
 
 

126. Absorptive nutrition is:

 
 
 
 

127. Infective part of virus was discovered by:

 
 
 
 

128. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

130. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

132. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

136. The sporangia of Selaginella are attached:

 
 
 
 

137. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

140. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

142. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

145. Some bacteria cannot be killed easily because of:

 
 
 
 

146. Mostly type of zygospore in Ulothrix is:

 
 
 
 

147. Economic importance of bacteria lies in their being:

 
 
 
 

148. Chief constituents of bordeaux mixture are :

 
 
 
 

149. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

152. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

154. All archaebacteria lack:

 
 
 
 

155. Leaf spot of groundnut is caused by :

 
 
 
 

156. All algae have:

 
 
 
 

157. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

159. Viruses are considered to be:

 
 
 
 

160. Bacteria were first discovered by:

 
 
 
 

161. Heterocysts are found in :

 
 
 
 

162. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

164. The development of sporangium in Selaginella is:

 
 
 
 

165. 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:

 
 
 
 

166. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

168. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

171. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

174. 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:

 
 
 
 

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

 
 
 
 

176. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

178. The most important property of yeast is:

 
 
 
 

179. Lichens reproduce by :

 
 
 
 

180. The sori in Dryopteris are found on:

 
 
 
 

181. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. Fern phloem lacks:

 
 
 
 

185. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Pneumonia is caused by:

 
 
 
 

190. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

192. The nucleus of bacteria is:

 
 
 
 

193. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

195. Which of the following is a monocot?

 
 
 
 

196. Ergot is obtained from :

 
 
 
 

197. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

199. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

200. Which is absent from the xylem of Cycas?

 
 
 
 

201. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

203. Transfusion tissue is present in the leaflet of:

 
 
 
 

204. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

206. Milk is converted to curd by:

 
 
 
 

207. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

209. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

212. Cycas is similar to a mustard plant :

 
 
 
 

213. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

215. Pteridophyta are also called:

 
 
 
 

216. The sporophyte of Riccia is represented by :

 
 
 
 

217. Which is an edible fungus?

 
 
 
 

218. In Herpes virus DNA is:

 
 
 
 

219. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

221. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

227. The fungi that grow on wood are called:

 
 
 
 

228. Antibiotic has been extracted from :

 
 
 
 

229. The vascular bundles of Cycas stem are :

 
 
 
 

230. The archegonia in Selaginella develop on:

 
 
 
 

231. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

233. The leafy fern plant represents the:

 
 
 
 

234. Male gametophyte of Selaginella is found:

 
 
 
 

235. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

238. The sporangium of fern contains nearly:

 
 
 
 

239. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

241. Fruits are not found in:

 
 
 
 

242. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

245. Woody climbers are known as :

 
 
 
 

246. TMV was isolated in crystalline form by:

 
 
 
 

247. Cellular slime mold is:

 
 
 
 

248. The Rhizopus gametes are formed in:

 
 
 
 

249. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

251. Ovary is absent in:

 
 
 
 

252. Cycas is :

 
 
 
 

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

 
 
 
 

254. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

257. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

259. The antibiotic is obtained from:

 
 
 
 

260. Pollination in Pinus is :

 
 
 
 

261. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

263. Which of the following is sago palm?

 
 
 
 

264. Red rot of sugarcane is caused by :

 
 
 
 

265. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

267. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

268. Oswald Tippo’s classification is:

 
 
 
 

269. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. Lichens show :

 
 
 
 

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

 
 
 
 

274. Photosynthetic protists belong to:

 
 
 
 

275. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

278. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

285. The mode of nutrition of bacteria is usually:

 
 
 
 

286. Photoautotrophic bacteria have:

 
 
 
 

287. Agar-agar is obtained from:

 
 
 
 

288. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

290. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

292. Virus and bacteriophage are made-up of:

 
 
 
 

293. Plasmids are:

 
 
 
 

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

 
 
 
 

295. Funaria are commonly found :

 
 
 
 

296. Typhoid in man is caused by:

 
 
 
 

297. Which part of Riccia bears nurse cells?

 
 
 
 

298. Cycas is:

 
 
 
 

299. Fern prothallus is:

 
 
 
 

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

 
 
 
 

301. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

304. Male gametes in Dryopteris are:

 
 
 
 

305. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

307. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

310. The roots of Cycas are :

 
 
 
 

311. Which is the correct statement about Selaginella?

 
 
 
 

312. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. The spur of Pinus roxburghii has :

 
 
 
 

316. The smallest bacterium is:

 
 
 
 

317. Select the wrong statement:

 
 
 
 

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

 
 
 
 

319. The chief characteristic of bryophyta is that :

 
 
 
 

320. Downy mildew disease is caused by :

 
 
 
 

321. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

323. The gametophyte of moss has distinct phases :

 
 
 
 

324. Proembryo in Pinus is :

 
 
 
 

325. Which of the following is a heterosporous pteridophyte?

 
 
 
 

326. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

327. First animal pathogenic virus was discovered by:

 
 
 
 

328. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

333. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. 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?

 
 
 
 

337. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

338. All protozoans possess:

 
 
 
 

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

 
 
 
 

340. Cell walls of Gram-positive bacteria contain:

 
 
 
 

341. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

343. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

345. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

346. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

347. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

349. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

350. Which of the following does not contain chlorophyll?

 
 
 
 

351. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. Bacteria are placed under:

 
 
 
 

356. Siphonogamy is found in:

 
 
 
 

357. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

363. 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:

 
 
 
 

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

 
 
 
 

365. Which class of Protozoa includes all parasitic forms?

 
 
 
 

366. Virion refers to:

 
 
 
 

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

 
 
 
 

368. The gametophyte produced by apospory is :

 
 
 
 

369. Spermatophyta are characterized by producing:

 
 
 
 

370. Liverworts are included in :

 
 
 
 

371. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

375. Red rot of sugarcane is caused by :

 
 
 
 

376. Viruses are commonly transmitted in plants through:

 
 
 
 

377. The chromosomal number in:

 
 
 
 

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

 
 
 
 

379. Which fixes atmospheric nitrogen?

 
 
 
 

380. The chloroplast of Chlamydomonas are:

 
 
 
 

381. Mycoplasma are sensitive to:

 
 
 
 

382. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

384. The largest alga is:

 
 
 
 

385. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

387. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

390. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

393. Most primitive embryophytes are placed in :

 
 
 
 

394. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

395. Ergot of rye is caused by:

 
 
 
 

396. Rhizopus belongs to:

 
 
 
 

397. The root nodules of leguminous plants contain:

 
 
 
 

398. Which of the following have a prokaryotic cell?

 
 
 
 

399.

400. Chemosynthetic bacteria are:

 
 
 
 

401. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

403. The zygospore in Rhizopus on germination forms:

 
 
 
 

404. The male gametes of Pinus are :

 
 
 
 

405. Cocci types of bacteria are:

 
 
 
 

406. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

408. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

411. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

413. Metulae are found in:

 
 
 
 

414. Yeast belongs to class:

 
 
 
 

415. Mycoplasmas are not viruses in nature because:

 
 
 
 

416. What is mycorrhiza?

 
 
 
 

417. Why is Cycas called a living fossil?

 
 
 
 

418. Black rust of wheat is caused by:

 
 
 
 

419. Funaria is a Bryophyta because :

 
 
 
 

420. Select the correct statement: (NEET 2016)

 
 
 
 

421. Rice, pea, potato are :

 
 
 
 

422. Which of the following is true for viruses?

 
 
 
 

423. Majority of lichens are :

 
 
 
 

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

 
 
 
 

425. Rhizoids of Riccia are :

 
 
 
 

426. In binomial system most of the words are:

 
 
 
 

427. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

429. Heterotrichous habit means :

 
 
 
 

430. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

434. Yeast grows more rapidly in:

 
 
 
 

435. The smallest unit of classification is:

 
 
 
 

436. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

439. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

443. Meiosis in Ulothrix takes place:

 
 
 
 

444. The photosynthetic protists are:

 
 
 
 

445. Mycoplasma are:

 
 
 
 

446. Cyanophage is a virus that attacks:

 
 
 
 

447. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

448. Which have the largest antherozoid?

 
 
 
 

449. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

452.

 

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

 
 
 
 

454. Ovules are not found enclosed in ovary of:

 
 
 
 

455. The most primitive vascular plants is:

 
 
 
 

456. The group algae possesses representatives belonging to kingdom:

 
 
 
 

457. The spermatozoids of Cycas are :

 
 
 
 

458. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

463. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

468. Nitrifying bacteria play an important role by converting:

 
 
 
 

469. Bivalved siliceous shell or frustule occur in:

 
 
 
 

470. The seedless plants which possess vascular tissues are:

 
 
 
 

471. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

472. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

474. Oswald Tippo’s classification was based on :

 
 
 
 

475. Which is a tautonym?

 
 
 
 

476. NBG of Lucknow is now named as:

 
 
 
 

477. Azolla and Salvinia both are:

 
 
 
 

478. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

481. Bentham and Hooker placed gymnosperms:

 
 
 
 

482. The megaspore of Selaginella on germination produces:

 
 
 
 

483. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. Seeds are characteristically found in:

 
 
 
 

489. 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:

 
 
 
 

490. The source of litmus is :

 
 
 
 

491. The rhizoids of Funaria are :

 
 
 
 

492. The flagella of Chlamydomonas are:

 
 
 
 

493. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498.

499. Climbers are found in genus:

 
 
 
 

500. Saccharomyces ludwigii ascus produces:

 
 
 
 

501. The role of meiosis is for:

 
 
 
 

502. Multicellular and jacketed sex organs are found in :

 
 
 
 

503. Linnaeus is credited with introducing:

 
 
 
 

504. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. Ethylene oxide is widely used to:

 
 
 
 

508. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

510. Among the algae kelps are :

 
 
 
 

511. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

520. Club moss and Peat moss belong to:

 
 
 
 

521. Which condition is found in Cycas?

 
 
 
 

522. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

526. The leaf of Cycas shows:

 
 
 
 

527. Black rust of wheat is caused by:

 
 
 
 

528. The DNA of E coli is:

 
 
 
 

529. To which class Riccia belongs :

 
 
 
 

530. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

532. The order generally ends with:

 
 
 
 

533. 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:

 
 
 
 

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

 
 
 
 

535. The tree fern is:

 
 
 
 

536. Who discovered heterothallism in fungi?

 
 
 
 

537. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

540. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

542. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

544. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

546. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

548. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

551. Funaria can be differentiated from Cycas :

 
 
 
 

552. E coli is a:

 
 
 
 

553. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

555. Total parasites belong to:

 
 
 
 

556. The leaves of Funaria are :

 
 
 
 

557. The middle sterile part of capsule is called:

 
 
 
 

558. Special feature of pollen grains of Pinus is :

 
 
 
 

559. The similarity between cyanobacteria and bacteria:

 
 
 
 

560. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

562. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. The largest known bacterium is:

 
 
 
 

568. True sexuality is not found in:

 
 
 
 

569. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. Reserve food in Euglena is:

 
 
 
 

573. The genetic material of poxvirus is:

 
 
 
 

574. In moss, calyptra is formed from:

 
 
 
 

575. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. The mycelium of Rhizopus is:

 
 
 
 

579. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

583. The two conjugating gametangia of Rhizopus are:

 
 
 
 

584. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. In Cycas microsporangia are borne on:

 
 
 
 

591. 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:

 
 
 
 

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

 
 
 
 

593. Isomorphic type alternation of generation is found in:

 
 
 
 

594. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

596. Which of the following applies to Selaginella?

 
 
 
 

597. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

599. Lichens are pioneers of vegetation in a :

 
 
 
 

600. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

605. The sexual reproductive organs in Rhizopus are:

 
 
 
 

606. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

609. Citrus canker is caused by :

 
 
 
 

610. Spermatophyta are characterized by producing:

 
 
 
 

611. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

613. What are plasmids?

 
 
 
 

614. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

617. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

618. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

624. Which is a redwood tree?

 
 
 
 

625. Which lichen is called Reindeer moss?

 
 
 
 

626. Chemosynthetic bacteria are:

 
 
 
 

627. The ferns are usually found:

 
 
 
 

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

 
 
 
 

629. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

633. The ascus of yeast contains:

 
 
 
 

634. Fern prothallus produces:

 
 
 
 

635. The central part of Funaria axis is :

 
 
 
 

636. Which of the following statements is not correct?

 
 
 
 

637. In moss, sporophyte is formed on:

 
 
 
 

638. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. The tallest moss in the world is :

 
 
 
 

644. 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?

 
 
 
 

645. The fungi used as food are:

 
 
 
 

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

 
 
 
 

647. Photosynthetic bacteria have:

 
 
 
 

648. Lichens are indicators of :

 
 
 
 

649. Bacteria growing on synthetic medium are called:

 
 
 
 

650. 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?

 
 
 
 

651. . Tapetum develops in:

 
 
 
 

652. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

654. The megasporangium of Selaginella is:

 
 
 
 

655. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. To which country Antony van Leeuwenhoek belong?

 
 
 
 

659. Most primitive group of vascular plants are:

 
 
 
 

660. The chloroplast in Ulothrix is :

 
 
 
 

661. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

663. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

665. Which of the following have algal zone?

 
 
 
 

666. Bacteria are considered to be plants because they:

 
 
 
 

667. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

674. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

676. Select the wrong statement:

 
 
 
 

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

 
 
 
 

678. Placenta in fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

681. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

683. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

687. Pinus gerardiana is :

 
 
 
 

688. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

690. Anoxygenic photosynthesis occurs in:

 
 
 
 

691. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

693. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

695. Vascular tissue is found in :

 
 
 
 

696. Facultative saprophyte is:

 
 
 
 

697. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

701. White rust of crucifers is caused by:

 
 
 
 

702. Most of the algae are :

 
 
 
 

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

 
 
 
 

704. Indusium in Dryopteris is:

 
 
 
 

705. Iodine is obtained from :

 
 
 
 

706. Fern plants are:

 
 
 
 

707. In tracheophyta:

 
 
 
 

708. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

710. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

712. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

715. The fungi are mostly:

 
 
 
 

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

 
 
 
 

717. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

719. Parmelia belongs to :

 
 
 
 

720. Embryophyta includes:

 
 
 
 

721. Which bacteria convert nitrate into nitrogen?

 
 
 
 

722. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

727. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

734. Smallpox is caused by:

 
 
 
 

735. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

737. Selaginella differs from Moss in having:

 
 
 
 

738. Halophiles are the bacteria that require for growth:

 
 
 
 

739. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

742. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

744. Lichens form the first community in

 
 
 
 

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

 
 
 
 

746. In dinoflagellates, the two flagella are:

 
 
 
 

747. Coenogamete is found in:

 
 
 
 

748. Late blight of potato is caused by:

 
 
 
 

749. Fruits are not found in :

 
 
 
 

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

 
 
 
 

751. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Zoogametes are not found in:

 
 
 
 

755. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

760. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

762. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

767. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

769. Synzoospore is produced in:

 
 
 
 

770. Bacteriophages have been used as:

 
 
 
 

771. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

773. Pteridophytes are also known as :

 
 
 
 

774. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

778. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

781. Interferon is a:

 
 
 
 

782. Pasteur is famous for his:

 
 
 
 

783. Reproduction in Cycas takes place by :

 
 
 
 

784. Cycas is different from mango in :

 
 
 
 

785. Which of the following are included in Tracheophyta?

 
 
 
 

786. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

787. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

791. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. 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:

 
 
 
 

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

 
 
 
 

796. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

799. What is the role of nitrifying bacteria?

 
 
 
 

800. Pollination drop is:

 
 
 
 

801. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804.

805. Early blight of potato is caused by:

 
 
 
 

806. The gametophyte of fern is as:

 
 
 
 

807. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

809. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

811. Smut of maize is caused by :

 
 
 
 

812. Nannandria are:

 
 
 
 

813. Acellular slime mold is/are:

 
 
 
 

814. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

816. Water-net is the name of:

 
 
 
 

817. Which is a fungicide?

 
 
 
 

818. Generic name of mango is:

 
 
 
 

819. Viruses have:

 
 
 
 

820. Botulinum toxin effects:

 
 
 
 

821. Ulothrix produces :

 
 
 
 

822. Seeds are characteristically found in :

 
 
 
 

823. The fern plant is:

 
 
 
 

824. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

826. Sleeping sickness disease in man is caused by:

 
 
 
 

827. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

830. Most common type of conjugation in Spirogyra is :

 
 
 
 

831. Mycoplasma contains:

 
 
 
 

832. Which organisms are the oldest life forms?

 
 
 
 

833. Who named prion?

 
 
 
 

834. In Pteris, the archegonia are present:

 
 
 
 

835. Which one of the following statement is wrong?

 
 
 
 

836. The teeth of peristome of Funaria are :

 
 
 
 

837. Viroids have:

 
 
 
 

838. Cryptogams include :

 
 
 
 

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

 
 
 
 

840. Most of the lichens are composed of :

 
 
 
 

841. Methanogens belong to:

 
 
 
 

842. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

844. Saccharomyces is well known for:

 
 
 
 

845. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

847. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

853. In a diplontic life cycle:

 
 
 
 

854. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

855. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

857. The first to isolate a plant virus was:

 
 
 
 

858. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

860. Most appropriate word for protozoans is:

 
 
 
 

861. The chief characteristic of class Ascomycetes is:

 
 
 
 

862. Most primitive embryophytes are placed in:

 
 
 
 

863. Common phycobiont in a lichen is :

 
 
 
 

864. LSD is: