Quiz_Random

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

 
 
 
 

2. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

4. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Pteridophyta are also called:

 
 
 
 

8. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

10. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

12. Leprosy is caused by:

 
 
 
 

13. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. Synzoospore is produced in:

 
 
 
 

17. Which among the following is a shrub?

 
 
 
 

18. Water-borne bacterial diseases are:

 
 
 
 

19. Saccharomyces ludwigii ascus produces:

 
 
 
 

20. Heterospory is the production of:

 
 
 
 

21. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. . Tapetum develops in:

 
 
 
 

25. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

27. An Hfr bacterium is one that contains:

 
 
 
 

28. Rhizophore of Selaginella is:

 
 
 
 

29. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

31. Roots are absent in :

 
 
 
 

32. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

33. Heterospory and ligulate leaves are a feature of:

 
 
 
 

34. Late blight of potato is caused by :

 
 
 
 

35. 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?

 
 
 
 

36. Protozoans are considered animals because these are:

 
 
 
 

37. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

39. Vegetative reproduction in Cycas is by means of :

 
 
 
 

40. 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:

 
 
 
 

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

 
 
 
 

42. Mycoplasmas are not viruses in nature because:

 
 
 
 

43. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

45. Aflatoxin is produced as a product in :

 
 
 
 

46. Citrus canker is caused by :

 
 
 
 

47. Chemosynthetic bacteria are:

 
 
 
 

48. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. The gametophyte of fern is as:

 
 
 
 

52. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

55. The root nodules of leguminous plants contain:

 
 
 
 

56. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. Fairy ring is the name given to:

 
 
 
 

62. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

64. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

66. 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:

 
 
 
 

67. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. In Cycas which structure is equivalent to stamen?

 
 
 
 

72. Protistan algae obtain their food as:

 
 
 
 

73. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

75. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Red rot of sugarcane is caused by:

 
 
 
 

79. Lichens are indicators of :

 
 
 
 

80. The sporangia of Selaginella are attached:

 
 
 
 

81. Sporophyte of Funaria is :

 
 
 
 

82. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

84. True sexuality is not found in:

 
 
 
 

85. Little leaf disease of Brinjal is caused by:

 
 
 
 

86. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

88. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

90. Bryophyta have a special character from other plants:

 
 
 
 

91. Metulae are found in:

 
 
 
 

92. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. TMV was isolated in crystalline form by:

 
 
 
 

97. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

99. Pneumonia is caused by:

 
 
 
 

100. Enzymes are absent in:

 
 
 
 

101. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

102. What is streptomycin?

 
 
 
 

103. Ovary is absent in:

 
 
 
 

104. Cryptogams include :

 
 
 
 

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

 
 
 
 

106. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

109. Late blight of potato is caused by:

 
 
 
 

110. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

112. Interferon is a:

 
 
 
 

113. The fungi used as food are:

 
 
 
 

114. Botulism is a:

 
 
 
 

115. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. Citrus canker is caused by:

 
 
 
 

123. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

126. Which of the following is a monocot?

 
 
 
 

127. The genetic material of poxvirus is:

 
 
 
 

128. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

130. What is special feature of fern archegonia?

 
 
 
 

131. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

134. Which of the following is true for Selaginella?

 
 
 
 

135. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

139. The antibiotic is obtained from:

 
 
 
 

140. The chief characteristic of bryophyta is that :

 
 
 
 

141. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

144. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

145. Gram stain is used to:

 
 
 
 

146. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

148. Antibiotic has been extracted from :

 
 
 
 

149. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

154. Pollination drop is:

 
 
 
 

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

 
 
 
 

156. The leafy fern plant represents the:

 
 
 
 

157. An alga which is rich in proteins:

 
 
 
 

158. Each chloroplast in Spirogyra bears :

 
 
 
 

159. Seeds are characteristically found in:

 
 
 
 

160. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

162. Which is the nuclear material in bacteria?

 
 
 
 

163. Winged seeds are found in :

 
 
 
 

164. The leaves of Funaria are :

 
 
 
 

165. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. Sometimes the bacterial cell is enclosed in:

 
 
 
 

169. Who named prion?

 
 
 
 

170. The lambda phase is a:

 
 
 
 

171. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

173. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

175. The coralloid roots are :

 
 
 
 

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

 
 
 
 

177. Lichens reproduce by :

 
 
 
 

178. Aflatoxin is produced by:

 
 
 
 

179. The fungi are usually:

 
 
 
 

180. Virion refers to:

 
 
 
 

181. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

183. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

187. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

189.

190. Cocci types of bacteria are:

 
 
 
 

191. Methanogens belong to:

 
 
 
 

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

 
 
 
 

193. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

195. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

199. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

201. Why is Cycas called a living fossil?

 
 
 
 

202. The sporangium of fern contains nearly:

 
 
 
 

203. The tree fern is:

 
 
 
 

204. The nucleus of bacteria is:

 
 
 
 

205. Yeast grows more rapidly in:

 
 
 
 

206. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

209. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

212. Funaria is a Bryophyta because :

 
 
 
 

213. Cyanophage is a virus that attacks:

 
 
 
 

214. Funaria can be differentiated from Cycas :

 
 
 
 

215. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

217. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

221. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

223. The ascus of yeast contains:

 
 
 
 

224. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

228. Fruits are not found in :

 
 
 
 

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

 
 
 
 

230. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

232. Iodine is obtained from :

 
 
 
 

233. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. What is mycorrhiza?

 
 
 
 

237. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

239. Which of the following are absent in Mycoplasma?

 
 
 
 

240. The Rhizopus is:

 
 
 
 

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

 
 
 
 

242. Bacteria which are spherical are called:

 
 
 
 

243. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. Ulothrix produces :

 
 
 
 

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

 
 
 
 

250. Pinus microsporophyll bears:

 
 
 
 

251. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

260. The smallest bacterium is:

 
 
 
 

261. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

263. Cleavage polyembryony is found in :

 
 
 
 

264. In moss, stomata are found:

 
 
 
 

265. In moss, peristomial teeth are:

 
 
 
 

266. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

267. Desired type of Cycas can be grown by:

 
 
 
 

268. Select the wrong statement:

 
 
 
 

269. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. Cellular slime mold is:

 
 
 
 

273. LSD is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

276. The seedless plants which possess vascular tissues are:

 
 
 
 

277. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

282. Ergot of rye is caused by:

 
 
 
 

283. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

286. Mostly type of zygospore in Ulothrix is:

 
 
 
 

287. Select the wrong statement:

 
 
 
 

288. Vascular tissue is found in :

 
 
 
 

289. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

292. Which of the following statement is correct?

 
 
 
 

293. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

297. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

299. How a fern differs from a moss?

 
 
 
 

300. Generic name of mango is:

 
 
 
 

301. The smallest unit of classification is:

 
 
 
 

302. The prothallus of fern is:

 
 
 
 

303. Diphtheria is caused by:

 
 
 
 

304. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

307. Mycoplasma contains:

 
 
 
 

308. Which is a gametophytic tissue?

 
 
 
 

309. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

317. Club moss is the common name of :

 
 
 
 

318. 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:

 
 
 
 

319. Clostridium can:

 
 
 
 

320. Embryophyta includes :

 
 
 
 

321. Fruits are not found in:

 
 
 
 

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

 
 
 
 

323. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. The upper region of moss capsule is :

 
 
 
 

330. Pteridophytes are also known as :

 
 
 
 

331. All algae have:

 
 
 
 

332. Which of the following is true for viruses?

 
 
 
 

333. The rhizoids of Funaria are :

 
 
 
 

334. Cycas is similar to a mustard plant :

 
 
 
 

335. Triple antigen injection or vaccine are for:

 
 
 
 

336. Which part of Riccia bears nurse cells?

 
 
 
 

337. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

339. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

341. In Pteris, the roots are:

 
 
 
 

342. Total parasites belong to:

 
 
 
 

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

 
 
 
 

344. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

346. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

349. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Most primitive kind of flower is represented by:

 
 
 
 

353. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

355. Lichens form the first community in

 
 
 
 

356. In Funaria, calyptra is derived from :

 
 
 
 

357. Which of the following statements is not correct?

 
 
 
 

358. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

360. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

362. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

365. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

366. Viroids have:

 
 
 
 

367. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

369. The DNA of E coli is:

 
 
 
 

370. 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?

 
 
 
 

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

 
 
 
 

372. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

374. The chromosomal number in:

 
 
 
 

375. In Funaria :

 
 
 
 

376. The group algae possesses representatives belonging to kingdom:

 
 
 
 

377. Cycas is :

 
 
 
 

378. Pollination in Cycas takes place by :

 
 
 
 

379. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

382. The prothallus of fern represents the plant:

 
 
 
 

383. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

386. Fern prothallus produces:

 
 
 
 

387. Which is the correct statement about Selaginella?

 
 
 
 

388. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

390. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

391. The sporangiophores in Rhizopus are:

 
 
 
 

392. Psilotum is:

 
 
 
 

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

 
 
 
 

394. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

396. Cycas is different from mango in :

 
 
 
 

397. Bacteriophage consists of:

 
 
 
 

398. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

401. Who among the following discovered virus?

 
 
 
 

402. Penicillin was discovered by:

 
 
 
 

403. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. Cycas is:

 
 
 
 

408. Majority of lichens are :

 
 
 
 

409. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414. In dinoflagellates, the two flagella are:

 
 
 
 

415. Streptomyces falls under:

 
 
 
 

416. Green plants are classified as:

 
 
 
 

417. Heterosporous pteridophytes always form:

 
 
 
 

418. Viruses have:

 
 
 
 

419. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

422. What are plasmids?

 
 
 
 

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

 
 
 
 

424. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

426. Placenta in fern is:

 
 
 
 

427. The orders generally have the uniform endings:

 
 
 
 

428. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

430. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

434. Which of the following shows heterotrichous habit?

 
 
 
 

435. Yeast belongs to class:

 
 
 
 

436. Most primitive group of vascular plants are:

 
 
 
 

437. Gametophyte is the main plant body in :

 
 
 
 

438. Pasteur is famous for his:

 
 
 
 

439. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

443. Agar-agar is obtained from:

 
 
 
 

444. The chloroplast in Ulothrix is :

 
 
 
 

445. Which is a fungicide?

 
 
 
 

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

 
 
 
 

447. Tautonyms are illegitimate in:

 
 
 
 

448. Broad spectrum antibiotic is, which:

 
 
 
 

449. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

452. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

457.

 

458. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

460. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

461. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

463. Redness of red sea is due to :

 
 
 
 

464. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

466. The development of Selaginella embryo is:

 
 
 
 

467. In moss, sporogenous tissue arises from:

 
 
 
 

468. All protozoans possess:

 
 
 
 

469. Pasteurized milk is:

 
 
 
 

470. Black rust of wheat is caused by:

 
 
 
 

471. To which class Riccia belongs :

 
 
 
 

472. Anoxygenic photosynthesis occurs in:

 
 
 
 

473. Which causes red tide?

 
 
 
 

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

 
 
 
 

475. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

476. The most important property of yeast is:

 
 
 
 

477. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

479. Isomorphic type alternation of generation is found in:

 
 
 
 

480. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

482. In tracheophyta:

 
 
 
 

483. Kuru, a human disease is caused by:

 
 
 
 

484. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

487. Which of the following is a parasitic algae?

 
 
 
 

488. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

492. In Cycas the fertilization is:

 
 
 
 

493. Genetic material of TMV is:

 
 
 
 

494. Soil fertility is lost by the activities of:

 
 
 
 

495. Which of the following is a heterosporous pteridophyte?

 
 
 
 

496. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

498. How is moss different from fern?

 
 
 
 

499. The chloroplast of Chlamydomonas are:

 
 
 
 

500. Which is a tautonym?

 
 
 
 

501. Germination of the seed of Pinus is :

 
 
 
 

502. Black rust of wheat is caused by:

 
 
 
 

503. Meristele of fern is:

 
 
 
 

504. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

506. Reproduction in Rhizopus is:

 
 
 
 

507. Photosynthetic bacteria have:

 
 
 
 

508. Economic importance of bacteria lies in their being:

 
 
 
 

509. Which lichen is called Reindeer moss?

 
 
 
 

510. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

513. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

515. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

517. Mucilaginous canals in Cycas are found in :

 
 
 
 

518. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. Common phycobiont in a lichen is :

 
 
 
 

522. Bacteria were first discovered by:

 
 
 
 

523. In a bacteriophage, DNA is present in:

 
 
 
 

524. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

526. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

529. Bacteria are found everywhere, except:

 
 
 
 

530. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. Enteric bacteria are those bacteria that live:

 
 
 
 

537. Which one of the following statement is wrong?

 
 
 
 

538. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

540. The ferns are usually found:

 
 
 
 

541. Cell walls of Gram-positive bacteria contain:

 
 
 
 

542. The tallest moss in the world is :

 
 
 
 

543. Viruses are commonly transmitted in plants through:

 
 
 
 

544. Red rot of sugarcane is caused by :

 
 
 
 

545. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

548. Photosynthetic protists belong to:

 
 
 
 

549. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

551. Lichens reproduce by :

 
 
 
 

552. Viruses are considered to be:

 
 
 
 

553. 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:

 
 
 
 

554. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

555. 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:

 
 
 
 

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

 
 
 
 

557. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

560. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

561. Which is not found in bacteria?

 
 
 
 

562. Bryophyta have been placed in cryptogams because:

 
 
 
 

563. What is a vector?

 
 
 
 

564. Funaria is :

 
 
 
 

565. The fungi are mostly:

 
 
 
 

566. Gymnosperms could also be called as:

 
 
 
 

567. The antherozoids of Funaria are :

 
 
 
 

568. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

571. One of the distinctive feature of Spirogyra is :

 
 
 
 

572. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

573. The spermatozoids of Cycas are :

 
 
 
 

574. Selaginella differs from Moss in having:

 
 
 
 

575. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

579. Sexual reproduction in Rhizopus is by:

 
 
 
 

580. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

582. Spores of which plants have chloroplast:

 
 
 
 

583. The gametophyte produced by apospory is :

 
 
 
 

584. Longest known virus is:

 
 
 
 

585. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

587. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

591. Fern plants are:

 
 
 
 

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

 
 
 
 

593. What is absent in Deuteromycetes?

 
 
 
 

594.

595. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

598. 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?

 
 
 
 

599. Saccharomyces is well known for:

 
 
 
 

600. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

602. Funaria are commonly found :

 
 
 
 

603. Etiology includes the study of :

 
 
 
 

604. The order generally ends with:

 
 
 
 

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

 
 
 
 

606. Fruiting body of lichens is :

 
 
 
 

607. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

612. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

615. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

623. The largest alga is:

 
 
 
 

624.

625. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

627. Most of the algae are :

 
 
 
 

628. Infective part of virus was discovered by:

 
 
 
 

629. Oswald Tippo’s classification is:

 
 
 
 

630. Who discovered heterothallism in fungi?

 
 
 
 

631. Bacteria differ from viruses in being sensitive to:

 
 
 
 

632. Pollination in Pinus is :

 
 
 
 

633. Germ theory of disease was proposed by:

 
 
 
 

634. Which fixes atmospheric nitrogen?

 
 
 
 

635. Mycoplasma was discovered by:

 
 
 
 

636. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

638. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

641. The plants of Funaria grow :

 
 
 
 

642. The Rhizopus gametes are formed in:

 
 
 
 

643. Lichens show :

 
 
 
 

644. A gill of Agaricus:

 
 
 
 

645. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

647. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

650. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

652. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

654. Pinus is:

 
 
 
 

655. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

657. The zoospores of Ulothrix are :

 
 
 
 

658. The chief characteristic of class Ascomycetes is:

 
 
 
 

659. Embryophyta includes:

 
 
 
 

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

 
 
 
 

661. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

664. 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?

 
 
 
 

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

 
 
 
 

666. Which of the following is sago palm?

 
 
 
 

667. Early blight of potato is caused by:

 
 
 
 

668. Yeast is a source of:

 
 
 
 

669. The microsporophylls on the cone of Cycas are :

 
 
 
 

670. Which organisms are the oldest life forms?

 
 
 
 

671. Most resistant spore in bacteria is:

 
 
 
 

672. The source of litmus is :

 
 
 
 

673. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

675. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

677. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

678. All archaebacteria lack:

 
 
 
 

679. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

682. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

685. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

687. Spirogyra represents the :

 
 
 
 

688. Facultative parasite is:

 
 
 
 

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

 
 
 
 

690. Choose the correct statement about Spirogyra:

 
 
 
 

691. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

696. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

698. The male gametes of Pinus are :

 
 
 
 

699. The fern plant is:

 
 
 
 

700. Nannandria are:

 
 
 
 

701. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

704. Asexual reproductive body of Volvox is called:

 
 
 
 

705. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

707. Lichens are pioneers of vegetation in a :

 
 
 
 

708. Lichen show :

 
 
 
 

709. John Hutchinson divided dicots into two divisions:

 
 
 
 

710. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

712. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

714. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

721. To which country Antony van Leeuwenhoek belong?

 
 
 
 

722. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

724. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. Amoeba is a member of the phylum:

 
 
 
 

730. Virus and bacteriophage are made-up of:

 
 
 
 

731. In a diplontic life cycle:

 
 
 
 

732. Ginkgo biloba is a:

 
 
 
 

733. Mixed cropping helps :

 
 
 
 

734. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

736. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

737. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

741. In Cycas microsporangia are borne on:

 
 
 
 

742. In Cycas:

 
 
 
 

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

 
 
 
 

744. 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:

 
 
 
 

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

 
 
 
 

746. Bacteria growing on synthetic medium are called:

 
 
 
 

747. Linnaeus is credited with introducing:

 
 
 
 

748. The mycelium of Rhizopus is:

 
 
 
 

749. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. Rhizoids of Riccia are :

 
 
 
 

753. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. The megasporangium of Selaginella is:

 
 
 
 

758. Discovery of penicillin was based on:

 
 
 
 

759. In moss, sporophyte is formed on:

 
 
 
 

760. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

762. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

765. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

772. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

775. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

778. The leaf of Cycas shows:

 
 
 
 

779. Rhizopus belongs to:

 
 
 
 

780. The archegonia of Selaginella are differentiated by:

 
 
 
 

781. Which is an edible fungus?

 
 
 
 

782. Sporophyte of fern is:

 
 
 
 

783. Special feature of pollen grains of Pinus is :

 
 
 
 

784. NBG of Lucknow is now named as:

 
 
 
 

785. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

787. Bivalved siliceous shell or frustule occur in:

 
 
 
 

788. In angiosperms double fertilization represents:

 
 
 
 

789. Spermatophyta are characterized by producing:

 
 
 
 

790. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

792. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

800. Winged pollen grains are found in :

 
 
 
 

801. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

803. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

805. Green plants are classified as :

 
 
 
 

806. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

808. Typhoid in man is caused by:

 
 
 
 

809. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

812. The gametophyte of moss has distinct phases :

 
 
 
 

813. Oswald Tippo’s classification was based on :

 
 
 
 

814. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

816. Bentham and Hooker placed gymnosperms:

 
 
 
 

817. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

819. Embryo formation is not known in :

 
 
 
 

820. Red rot of sugarcane is caused by :

 
 
 
 

821. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

823. Pinus gerardiana is :

 
 
 
 

824. Azolla growing in paddy fields helps in:

 
 
 
 

825. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

828. What is the role of nitrifying bacteria?

 
 
 
 

829. The vascular bundles of Cycas stem are :

 
 
 
 

830. Fern prothallus is:

 
 
 
 

831. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

833. The term stele was given by:

 
 
 
 

834. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

836. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

838. The first to isolate a plant virus was:

 
 
 
 

839. Small epidermal swellings due to infection are called :

 
 
 
 

840. Lichens are ecologically important because :

 
 
 
 

841. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

843. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

846. Black rust of wheat is caused by:

 
 
 
 

847. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

851. Heterotrichous habit means :

 
 
 
 

852. Plasmids are:

 
 
 
 

853. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

856. Which of the following applies to Selaginella?

 
 
 
 

857. Detailed study of bacteriophage was made by:

 
 
 
 

858. Acetobacter is useful in:

 
 
 
 

859. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

864. Lichens are the indicator of pollution :