Quiz_Random

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

 
 
 
 

2. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Which lichen is called Reindeer moss?

 
 
 
 

9. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

11. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

13. Botulinum toxin effects:

 
 
 
 

14. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. The source of litmus is :

 
 
 
 

24. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

28. Chief constituents of bordeaux mixture are :

 
 
 
 

29. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

30. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

32. Cleavage polyembryony is found in :

 
 
 
 

33. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

38. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

40. All algae have:

 
 
 
 

41. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

42. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

46. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

47. Methanogens belong to:

 
 
 
 

48. Circular DNA is seen in:

 
 
 
 

49. Gram stain is used to:

 
 
 
 

50. In dinoflagellates, the two flagella are:

 
 
 
 

51. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

53. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. In Funaria :

 
 
 
 

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

 
 
 
 

59. Saccharomyces ludwigii ascus produces:

 
 
 
 

60. Viruses have:

 
 
 
 

61. Green plants are classified as :

 
 
 
 

62. Enteric bacteria are those bacteria that live:

 
 
 
 

63. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

65. The Rhizopus is:

 
 
 
 

66. The megasporangium of Selaginella is:

 
 
 
 

67. In moss, peristomial teeth are:

 
 
 
 

68. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

70. The chief characteristic of bryophyta is that :

 
 
 
 

71. Which one of the following statement is wrong?

 
 
 
 

72. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

78. Lichens are pioneers of vegetation in a :

 
 
 
 

79. Which of the following lichens is harmful?

 
 
 
 

80. Funaria is a Bryophyta because :

 
 
 
 

81. Late blight of potato is caused by :

 
 
 
 

82. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

91. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. Chemosynthetic bacteria are:

 
 
 
 

100. Reserve food in Euglena is:

 
 
 
 

101. 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?

 
 
 
 

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

 
 
 
 

103. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

104. Viruses are commonly transmitted in plants through:

 
 
 
 

105. Ovary is absent in:

 
 
 
 

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

 
 
 
 

107. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

109. The ascus of yeast contains:

 
 
 
 

110. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

113. Which of the following are absent in Mycoplasma?

 
 
 
 

114. 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:

 
 
 
 

115. Most primitive embryophytes are placed in :

 
 
 
 

116. Sporophyte of Funaria is :

 
 
 
 

117. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

123. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

125. The largest alga is:

 
 
 
 

126. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

129. Leprosy is caused by:

 
 
 
 

130. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

134. Select the correct statement: (NEET 2016)

 
 
 
 

135. The fungi used as food are:

 
 
 
 

136. The truncated cone of HIV consists of:

 
 
 
 

137. Synzoospore is produced in:

 
 
 
 

138. Climbers are found in genus:

 
 
 
 

139. Ovules are not found enclosed in ovary in :

 
 
 
 

140. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

142. Virus and bacteriophage are made-up of:

 
 
 
 

143. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

145. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

151. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

155. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

160. Bacteria were first discovered by:

 
 
 
 

161. Rhizopus and yeast are usually:

 
 
 
 

162. Milk is converted to curd by:

 
 
 
 

163. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

164. The antibiotic is obtained from:

 
 
 
 

165. The smallest bacterium is:

 
 
 
 

166. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

169. Number of capsomeres forming capsid of TMV is:

 
 
 
 

170. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

172. Select the wrong statement:

 
 
 
 

173. Most primitive group of vascular plants are:

 
 
 
 

174. Rice, pea, potato are :

 
 
 
 

175. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

178. Pollination in Cycas takes place by :

 
 
 
 

179. Citrus canker is caused by:

 
 
 
 

180. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

181. Fruiting body of lichens is :

 
 
 
 

182. Genetic material of TMV is:

 
 
 
 

183. In tracheophyta:

 
 
 
 

184. Funaria can be differentiated from Cycas :

 
 
 
 

185. Pneumonia is caused by:

 
 
 
 

186. Cryptogams include :

 
 
 
 

187. Club moss is the common name of :

 
 
 
 

188. Ovules are not found enclosed in ovary of:

 
 
 
 

189. The DNA of E coli is:

 
 
 
 

190. In Gymnocarpeae the fruiting body is :

 
 
 
 

191. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

194. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

196. Longest known virus is:

 
 
 
 

197. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. Which of the following are included in Tracheophyta?

 
 
 
 

204. Reproduction in Cycas takes place by :

 
 
 
 

205. Nannandria are:

 
 
 
 

206. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

207. The sporangia of Selaginella are attached:

 
 
 
 

208. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

210. Which of the following applies to Selaginella?

 
 
 
 

211. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

214. Antibiotic has been extracted from :

 
 
 
 

215. In moss, sporogenous tissue arises from:

 
 
 
 

216. Viruses are considered to be:

 
 
 
 

217. In moss, sporophyte is formed on:

 
 
 
 

218. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. The plants of Funaria grow :

 
 
 
 

226. 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:

 
 
 
 

227. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

228. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

230. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

232. Linnaeus is credited with introducing:

 
 
 
 

233. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

238. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

240. Winged seeds are found in :

 
 
 
 

241. Bacteria are found everywhere, except:

 
 
 
 

242. Meristele of fern is:

 
 
 
 

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

 
 
 
 

244. Pinus is:

 
 
 
 

245. The middle sterile part of capsule is called:

 
 
 
 

246. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

249. The antherozoids of Funaria are :

 
 
 
 

250. Which of the following statement is correct?

 
 
 
 

251. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

254. Pythium debaryanum is the causative agent of:

 
 
 
 

255. True sexuality is not found in:

 
 
 
 

256. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

258. The orders generally have the uniform endings:

 
 
 
 

259. Cycas plant in appearance resembles :

 
 
 
 

260. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. Sleeping sickness disease in man is caused by:

 
 
 
 

264. Interferon is a:

 
 
 
 

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

 
 
 
 

266. Mixed cropping helps :

 
 
 
 

267. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

269. Most primitive kind of flower is represented by:

 
 
 
 

270. The stele of Dryopteris is a:

 
 
 
 

271. Which is absent from the xylem of Cycas?

 
 
 
 

272. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. The sporangium of fern contains nearly:

 
 
 
 

276. In Cycas:

 
 
 
 

277. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

280. The sporangiophores in Rhizopus are:

 
 
 
 

281. Bacteria which are spherical are called:

 
 
 
 

282. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

284. Lichens reproduce by :

 
 
 
 

285. The disease symptom necrosis refers to :

 
 
 
 

286. Fruits are not found in :

 
 
 
 

287. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

289. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

293. 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:

 
 
 
 

294. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

296. Penicillin was discovered by:

 
 
 
 

297. The sexual reproductive organs in Rhizopus are:

 
 
 
 

298. Lichens show :

 
 
 
 

299. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

302. Ginkgo biloba is a:

 
 
 
 

303. How is moss different from fern?

 
 
 
 

304. The development of Selaginella embryo is:

 
 
 
 

305. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

306. The leaf of Cycas shows:

 
 
 
 

307. What are Cyanobacteria?

 
 
 
 

308. Bacteriophage consists of:

 
 
 
 

309. Kuru, a human disease is caused by:

 
 
 
 

310. In Gymnosperms endosperm is a:

 
 
 
 

311. Simple polyembryony is found in :

 
 
 
 

312. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

314. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

316. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

318. The male gametes of Pinus are :

 
 
 
 

319. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

322. Viroids have:

 
 
 
 

323. Fruits are not found in Cycas because:

 
 
 
 

324. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

326. How a fern differs from a moss?

 
 
 
 

327. One of the distinctive feature of Spirogyra is :

 
 
 
 

328. Pseudomycelium is found in:

 
 
 
 

329. The largest known bacterium is:

 
 
 
 

330. White rust of crucifers is caused by:

 
 
 
 

331. Asexual reproductive body of Volvox is called:

 
 
 
 

332. Pinus microsporophyll bears:

 
 
 
 

333. Which of the following is sago palm?

 
 
 
 

334. Total parasites belong to:

 
 
 
 

335. Vascular cryptogams is the term used for:

 
 
 
 

336. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

338. The lichens growing on rocks are called :

 
 
 
 

339. Protozoans are considered animals because these are:

 
 
 
 

340. Which is an exception to cell theory?

 
 
 
 

341. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

343. Which is the correct statement about Selaginella?

 
 
 
 

344. Spermatophyta are characterized by producing:

 
 
 
 

345. Amoeba is a member of the phylum:

 
 
 
 

346. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

348. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

350. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

352. The vascular bundles of Cycas stem are :

 
 
 
 

353. Helotism word is used for the symbiosis between :

 
 
 
 

354. Which of the following have a prokaryotic cell?

 
 
 
 

355. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

357. The microsporophylls on the cone of Cycas are :

 
 
 
 

358. Absorptive nutrition is:

 
 
 
 

359. Ulothrix produces :

 
 
 
 

360. Acellular slime mold is/are:

 
 
 
 

361. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

367. Standard size of a herbarium sheet is:

 
 
 
 

368. Each chloroplast in Spirogyra bears :

 
 
 
 

369. Which is a tautonym?

 
 
 
 

370. Spirogyra represents the :

 
 
 
 

371. Cycas revoluta is widely grown as :

 
 
 
 

372. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

374. Iodine is obtained from:

 
 
 
 

375. Among the algae kelps are :

 
 
 
 

376. In moss, stomata are found:

 
 
 
 

377. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380. Diphtheria is caused by:

 
 
 
 

381. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

387. Yeast is a source of:

 
 
 
 

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

 
 
 
 

389. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

391. Bryophyta have been placed in cryptogams because:

 
 
 
 

392. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

396. The group algae possesses representatives belonging to kingdom:

 
 
 
 

397. Which bacteria convert nitrate into nitrogen?

 
 
 
 

398. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

402. Which class of Protozoa includes all parasitic forms?

 
 
 
 

403. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

406. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

409. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

412. Bentham and Hooker placed gymnosperms:

 
 
 
 

413. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

415. Virion refers to:

 
 
 
 

416. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

419. Photosynthetic protists belong to:

 
 
 
 

420. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. Funaria is :

 
 
 
 

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

 
 
 
 

425. The disease apple scab is caused by:

 
 
 
 

426. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

428. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. Fairy ring is the name given to:

 
 
 
 

432. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

434. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

436. Ectocarpus produces:

 
 
 
 

437. Protistan algae obtain their food as:

 
 
 
 

438. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

440. Psilotum is:

 
 
 
 

441. Facultative saprophyte is:

 
 
 
 

442. Wine turns sour because of:

 
 
 
 

443. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

445. Ergot is obtained from :

 
 
 
 

446. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. Mycoplasma are sensitive to:

 
 
 
 

450. What is mycorrhiza?

 
 
 
 

451. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

454. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

456. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

457. The nucleus of bacteria is:

 
 
 
 

458. The most primitive vascular plants is:

 
 
 
 

459. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

461. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

464. Mycoplasma contains:

 
 
 
 

465. Most of the algae are :

 
 
 
 

466. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

468. What is the role of nitrifying bacteria?

 
 
 
 

469. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

471. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

473. 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:

 
 
 
 

474. Who discovered streptomycin?

 
 
 
 

475. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

477. The most important property of yeast is:

 
 
 
 

478. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

481. . Tapetum develops in:

 
 
 
 

482. Which is a gametophytic tissue?

 
 
 
 

483. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. Heterosporous pteridophytes always form:

 
 
 
 

489. The coralloid roots are :

 
 
 
 

490. The tree fern is:

 
 
 
 

491. The sporophyte of Riccia is represented by :

 
 
 
 

492. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

494. Most appropriate word for protozoans is:

 
 
 
 

495. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

497. Which is a redwood tree?

 
 
 
 

498. Water-net is the name of:

 
 
 
 

499. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

502. Male gametes in Dryopteris are:

 
 
 
 

503. A gill of Agaricus:

 
 
 
 

504. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

506. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

510. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

512. The gametophyte of fern bears:

 
 
 
 

513. In moss, calyptra is formed from:

 
 
 
 

514. Detailed study of bacteriophage was made by:

 
 
 
 

515. Red rot of sugarcane is caused by:

 
 
 
 

516. Which of the following is a monocot?

 
 
 
 

517. The gametophyte of moss has distinct phases :

 
 
 
 

518. Majority of lichens are :

 
 
 
 

519. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

523. Who discovered cyanophages?

 
 
 
 

524. The sporophyte of Riccia is :

 
 
 
 

525. Cyanophage is a virus that attacks:

 
 
 
 

526. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

529. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

531. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

533. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. Oswald Tippo’s classification was based on :

 
 
 
 

538. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. Bacteria growing on synthetic medium are called:

 
 
 
 

543. An Hfr bacterium is one that contains:

 
 
 
 

544. Metulae are found in:

 
 
 
 

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

 
 
 
 

546. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

548. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

551. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

556.

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

 
 
 
 

558. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

561. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

565. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

567. Bryophyta have a special character from other plants:

 
 
 
 

568. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

573. The genetic material of poxvirus is:

 
 
 
 

574. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

576. Discovery of penicillin was based on:

 
 
 
 

577. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

579. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

581. 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?

 
 
 
 

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

 
 
 
 

583. Penicillin is obtained from:

 
 
 
 

584. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

588. Which one of the following is a monocot?

 
 
 
 

589. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

591. Fertility of the soil is increased by:

 
 
 
 

592. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

600. The zoospores of Ulothrix are :

 
 
 
 

601. Male gametophyte of Selaginella is found:

 
 
 
 

602. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

604. The gametophyte of fern is as:

 
 
 
 

605. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

611. Lichens form the first community in

 
 
 
 

612. Pasteur is famous for his:

 
 
 
 

613. The fungi are usually:

 
 
 
 

614. The prothallus of fern represents the plant:

 
 
 
 

615. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. What is a vector?

 
 
 
 

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

 
 
 
 

620. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

622. The rhizoids of Funaria are :

 
 
 
 

623. What are plasmids?

 
 
 
 

624. Which causes red tide?

 
 
 
 

625. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

629. Liverworts are included in :

 
 
 
 

630. The young leaves of Cycas have :

 
 
 
 

631. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

633. Desired type of Cycas can be grown by:

 
 
 
 

634. Red rot of sugarcane is caused by :

 
 
 
 

635.

636. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

639. LSD is:

 
 
 
 

640. Clostridium can:

 
 
 
 

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

 
 
 
 

642. Endemic plants are characterised by their:

 
 
 
 

643. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

644. Cycas is:

 
 
 
 

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

 
 
 
 

646. Azolla and Salvinia both are:

 
 
 
 

647. Sometimes the bacterial cell is enclosed in:

 
 
 
 

648. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

650. The fern plant is:

 
 
 
 

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

 
 
 
 

652. Mucilaginous canals in Cycas are found in :

 
 
 
 

653. 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:

 
 
 
 

654. Proembryo in Pinus is :

 
 
 
 

655. Selaginella differs from Moss in having:

 
 
 
 

656.

 

657. The fungi are mostly:

 
 
 
 

658. Reproduction in Rhizopus is:

 
 
 
 

659. Small epidermal swellings due to infection are called :

 
 
 
 

660. The zygospore in Rhizopus on germination forms:

 
 
 
 

661. Black rust of wheat is caused by:

 
 
 
 

662. The spermatozoids of Cycas are :

 
 
 
 

663. Saccharomyces is well known for:

 
 
 
 

664. The Rhizopus gametes are formed in:

 
 
 
 

665. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

667. Acetobacter is useful in:

 
 
 
 

668. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

670. Common phycobiont in a lichen is :

 
 
 
 

671. The first to isolate a plant virus was:

 
 
 
 

672. Embryophyta includes :

 
 
 
 

673. The smallest unit of classification is:

 
 
 
 

674. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. Agar-agar is obtained from:

 
 
 
 

678. Mostly type of zygospore in Ulothrix is:

 
 
 
 

679. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

682. 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:

 
 
 
 

683. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

688. Redness of red sea is due to :

 
 
 
 

689. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

693. Which of the following is a heterosporous pteridophyte?

 
 
 
 

694. Lichen show :

 
 
 
 

695. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

697. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

699. Diploxylic vascular bundles are found in:

 
 
 
 

700. The mode of nutrition of bacteria is usually:

 
 
 
 

701. Gymnosperms could also be called as:

 
 
 
 

702. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

703. The similarity between cyanobacteria and bacteria:

 
 
 
 

704. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

706. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

708. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

711. Fruits are not found in:

 
 
 
 

712. The archegonia in Selaginella develop on:

 
 
 
 

713. 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?

 
 
 
 

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

 
 
 
 

715. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

718. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

720. Which of the following is a parasitic algae?

 
 
 
 

721. Pasteurization of milk involves heating for:

 
 
 
 

722. Bacteriophages have been used as:

 
 
 
 

723. Green plants are classified as:

 
 
 
 

724. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

726. Which of the following is true for Selaginella?

 
 
 
 

727. Who named prion?

 
 
 
 

728.

729. Cycas is similar to a mustard plant :

 
 
 
 

730. 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?

 
 
 
 

731. Triple antigen injection or vaccine are for:

 
 
 
 

732. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

734. The lambda phase is a:

 
 
 
 

735. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

737. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

739. The chloroplast in Ulothrix is :

 
 
 
 

740. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

743. Centric discoid form of diatom is:

 
 
 
 

744. Water bloom is generally caused by :

 
 
 
 

745. Lichens reproduce by :

 
 
 
 

746. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

749. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. Maximum diversity of life forms occurs in :

 
 
 
 

753. E coli is a:

 
 
 
 

754. Pollination in Pinus is :

 
 
 
 

755. Fern plants are:

 
 
 
 

756. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

761. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. Roots are absent in :

 
 
 
 

765. Which of the following is true for viruses?

 
 
 
 

766. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

767. The leaves of Funaria are :

 
 
 
 

768. Generic name of mango is:

 
 
 
 

769. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

771. In binomial system most of the words are:

 
 
 
 

772. To which country Antony van Leeuwenhoek belong?

 
 
 
 

773. In Pteris, the roots are:

 
 
 
 

774. Placenta in fern is:

 
 
 
 

775. Heterospory is the production of:

 
 
 
 

776. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

779. Fern prothallus produces:

 
 
 
 

780. Economic importance of bacteria lies in their being:

 
 
 
 

781. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

783. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

787. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

789. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

793. Which is a fungicide?

 
 
 
 

794. All protozoans possess:

 
 
 
 

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

 
 
 
 

796. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

800. Transfusion tissue is present in the leaflet of:

 
 
 
 

801. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. Mycoplasma was discovered by:

 
 
 
 

805. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

807. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

809. Pollination drop is:

 
 
 
 

810. NBG of Lucknow is now named as:

 
 
 
 

811. Heterocysts are found in :

 
 
 
 

812. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

814. Most resistant spore in bacteria is:

 
 
 
 

815. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

817. In a diplontic life cycle:

 
 
 
 

818. Botulism is a:

 
 
 
 

819. Smallpox is caused by:

 
 
 
 

820. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

822. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

824. Special feature of pollen grains of Pinus is :

 
 
 
 

825. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

827. The term stele was given by:

 
 
 
 

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

 
 
 
 

829. Pteridophytes are also known as :

 
 
 
 

830. Seeds are characteristically found in :

 
 
 
 

831. The chloroplast of Chlamydomonas are:

 
 
 
 

832. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

835. The teeth of peristome of Funaria are :

 
 
 
 

836. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

838. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

841. Late blight of potato is caused by:

 
 
 
 

842. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

845. Broad spectrum antibiotic is, which:

 
 
 
 

846. The tallest moss in the world is :

 
 
 
 

847. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

849. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

851. Heterotrichous habit means :

 
 
 
 

852. Spirogyra differs from moss protonema in having :

 
 
 
 

853. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

855. Little leaf disease of Brinjal is caused by:

 
 
 
 

856. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

857. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

859. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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