Quiz_Random

1. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10.

11. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

13. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Most of the algae are :

 
 
 
 

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

 
 
 
 

19. Lichens show :

 
 
 
 

20. Which of the following is sago palm?

 
 
 
 

21. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

27. In Cycas the fertilization is:

 
 
 
 

28. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

29. Photosynthetic protists belong to:

 
 
 
 

30. Pythium debaryanum is the causative agent of:

 
 
 
 

31. The coralloid roots are :

 
 
 
 

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

 
 
 
 

33. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

38. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

40. Protozoans are considered animals because these are:

 
 
 
 

41. Mostly type of zygospore in Ulothrix is:

 
 
 
 

42. In Cycas:

 
 
 
 

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

 
 
 
 

44. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

46. Which one of the following is a monocot?

 
 
 
 

47. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Pasteurization of milk involves heating for:

 
 
 
 

58. One of the distinctive feature of Spirogyra is :

 
 
 
 

59. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

62. Endemic plants are characterised by their:

 
 
 
 

63. The sexual reproductive organs in Rhizopus are:

 
 
 
 

64. Most primitive embryophytes are placed in :

 
 
 
 

65. What is streptomycin?

 
 
 
 

66. Economic importance of bacteria lies in their being:

 
 
 
 

67. Fruits are not found in Cycas because:

 
 
 
 

68. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

70. Which one of the following statement is wrong?

 
 
 
 

71. Broad spectrum antibiotic is, which:

 
 
 
 

72. Who discovered heterothallism in fungi?

 
 
 
 

73. 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:

 
 
 
 

74. Maximum diversity of life forms occurs in :

 
 
 
 

75. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Oswald Tippo’s classification was based on :

 
 
 
 

79. An alga which is rich in proteins:

 
 
 
 

80. Fruiting body of lichens is :

 
 
 
 

81. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

83. Usually, bacteria reproduce by:

 
 
 
 

84. Indusium in Dryopteris is:

 
 
 
 

85. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

86. Funaria is :

 
 
 
 

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

 
 
 
 

88. Cocci types of bacteria are:

 
 
 
 

89. In Funaria :

 
 
 
 

90. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

97. Sometimes the bacterial cell is enclosed in:

 
 
 
 

98. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

100. The lichens growing on rocks are called :

 
 
 
 

101. Most primitive embryophytes are placed in:

 
 
 
 

102. Bacteria are considered to be plants because they:

 
 
 
 

103. Cycas revoluta is widely grown as :

 
 
 
 

104. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

108. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

117. Rhizophore of Selaginella is:

 
 
 
 

118. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

120. Penicillin is obtained from:

 
 
 
 

121. The most important property of yeast is:

 
 
 
 

122. Funaria is :

 
 
 
 

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

 
 
 
 

124. The chromosomal number in:

 
 
 
 

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

 
 
 
 

126. Which of the following does not contain chlorophyll?

 
 
 
 

127. Spermatophyta are characterized by producing:

 
 
 
 

128. The chief characteristic of class Ascomycetes is:

 
 
 
 

129. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

131. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

135. Which of the following statements is not correct?

 
 
 
 

136. In moss, conducting tissue is made up of

 
 
 
 

137. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

140. The fungi are usually:

 
 
 
 

141. Reproduction in Rhizopus is:

 
 
 
 

142. In Pteris, the archegonia are present:

 
 
 
 

143. The vascular bundles of Cycas stem are :

 
 
 
 

144. The photosynthetic protists are:

 
 
 
 

145. Fruits are not found in:

 
 
 
 

146. Choose the correct statement about Spirogyra:

 
 
 
 

147. Nitrogen-fixing bacteria may be located:

 
 
 
 

148. Plasmids are:

 
 
 
 

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

 
 
 
 

150. Cellular slime mold is:

 
 
 
 

151. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

153. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

158. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

160. Ergot of rye is caused by:

 
 
 
 

161. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

163. The development of sporangium in Selaginella is:

 
 
 
 

164. The term stele was given by:

 
 
 
 

165. Cyanophage is a virus that attacks:

 
 
 
 

166. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

172. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

175. Bacteria were first discovered by:

 
 
 
 

176. In moss, sporophyte is formed on:

 
 
 
 

177. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

179. The smallest unit of classification is:

 
 
 
 

180. Detailed study of bacteriophage was made by:

 
 
 
 

181. Yeast belongs to class:

 
 
 
 

182. Chemosynthetic bacteria are:

 
 
 
 

183. The development of Selaginella embryo is:

 
 
 
 

184. Interferon is a:

 
 
 
 

185. Zoogametes are not found in:

 
 
 
 

186. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

191. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

193. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

194. 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:

 
 
 
 

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

 
 
 
 

196. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

201. Red rot of sugarcane is caused by:

 
 
 
 

202. 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:

 
 
 
 

203. Aflatoxin is produced by:

 
 
 
 

204. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

207. Viroids have:

 
 
 
 

208. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

210. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. Spirogyra differs from moss protonema in having :

 
 
 
 

217. Viruses are commonly transmitted in plants through:

 
 
 
 

218. Vascular tissue is found in :

 
 
 
 

219. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

222. Which of the following lichens is harmful?

 
 
 
 

223. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

225.

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

 
 
 
 

227. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

229. The chief characteristic of bryophyta is that :

 
 
 
 

230. The antherozoids of Funaria are :

 
 
 
 

231. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. Some bacteria cannot be killed easily because of:

 
 
 
 

237. Agar-agar is obtained from:

 
 
 
 

238. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

240. Why is Cycas called a living fossil?

 
 
 
 

241. Male gametophyte of Selaginella is found:

 
 
 
 

242. Most primitive group of vascular plants are:

 
 
 
 

243. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

245. Genetic material of TMV is:

 
 
 
 

246. 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?

 
 
 
 

247. Roots are absent in :

 
 
 
 

248. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

250. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

253. Ovules are not found enclosed in ovary of:

 
 
 
 

254. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

256. Fern plants are:

 
 
 
 

257. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

259. Pasteur is famous for his:

 
 
 
 

260. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

264. Viruses have:

 
 
 
 

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

 
 
 
 

266. 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?

 
 
 
 

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

 
 
 
 

268. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. Oswald Tippo’s classification is:

 
 
 
 

273. Facultative parasite is:

 
 
 
 

274. Select the wrong statement:

 
 
 
 

275. In tracheophyta:

 
 
 
 

276. Parmelia belongs to :

 
 
 
 

277. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. Saccharomyces is used in:

 
 
 
 

285. Funaria is a Bryophyta because :

 
 
 
 

286. Which of the following is a parasitic algae?

 
 
 
 

287. Ovary is absent in :

 
 
 
 

288. Fern prothallus produces:

 
 
 
 

289. Where does meiosis occur in yeast?

 
 
 
 

290. Who named prion?

 
 
 
 

291. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

293. Azolla and Salvinia both are:

 
 
 
 

294. The sporangia of Selaginella are attached:

 
 
 
 

295. Helotism word is used for the symbiosis between :

 
 
 
 

296. Selaginella differs from Moss in having:

 
 
 
 

297. In Cycas which structure is equivalent to stamen?

 
 
 
 

298. Fern phloem lacks:

 
 
 
 

299. Cycas is similar to a mustard plant :

 
 
 
 

300. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

302. The role of meiosis is for:

 
 
 
 

303. Circular DNA is seen in:

 
 
 
 

304. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

308. The gametophyte of fern is as:

 
 
 
 

309. Meiosis in Ulothrix takes place:

 
 
 
 

310. Sexual reproduction in Rhizopus is by:

 
 
 
 

311. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

313. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

315. Which of the following applies to Selaginella?

 
 
 
 

316. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

318. Synzoospore is produced in:

 
 
 
 

319. Discovery of penicillin was based on:

 
 
 
 

320. The antibiotic is obtained from:

 
 
 
 

321. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

324. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

326. In Cycas microsporangia are borne on:

 
 
 
 

327. Small epidermal swellings due to infection are called :

 
 
 
 

328. Sleeping sickness disease in man is caused by:

 
 
 
 

329. Which is a gametophytic tissue?

 
 
 
 

330. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

338. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

339. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

341. Seeds are characteristically found in:

 
 
 
 

342. In dinoflagellates, the two flagella are:

 
 
 
 

343. The group algae possesses representatives belonging to kingdom:

 
 
 
 

344. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

350.

 

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

 
 
 
 

352. Yeast is a source of:

 
 
 
 

353. An Hfr bacterium is one that contains:

 
 
 
 

354. In Pteris, the roots are:

 
 
 
 

355. What is a vector?

 
 
 
 

356. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

357. Triple antigen injection or vaccine are for:

 
 
 
 

358. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

362. The chloroplast of Chlamydomonas are:

 
 
 
 

363. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

366. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

368. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

371. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

373. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

375. Protists which are diploid reproduce sexually by:

 
 
 
 

376. The ascus of yeast contains:

 
 
 
 

377. Citrus canker is caused by :

 
 
 
 

378. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

382. Bacteria growing on synthetic medium are called:

 
 
 
 

383. Methanogens belong to:

 
 
 
 

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

 
 
 
 

385. Amoeba is a member of the phylum:

 
 
 
 

386. The DNA of E coli is:

 
 
 
 

387. The fungi used as food are:

 
 
 
 

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

 
 
 
 

389. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

392. Late blight of potato is caused by :

 
 
 
 

393. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

396. Late blight of potato is caused by:

 
 
 
 

397. Streptomyces falls under:

 
 
 
 

398. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

400. Nitrifying bacteria play an important role by converting:

 
 
 
 

401. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

403. The chloroplast in Ulothrix is :

 
 
 
 

404. Which part of Riccia bears nurse cells?

 
 
 
 

405. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

409. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

416. Which of the following are included in Tracheophyta?

 
 
 
 

417. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. Winged pollen grains are found in :

 
 
 
 

421. In a diplontic life cycle:

 
 
 
 

422. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

424. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

428. Smut of maize is caused by :

 
 
 
 

429. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

431. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

433. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

444. Heterosporous pteridophytes always form:

 
 
 
 

445. How a fern differs from a moss?

 
 
 
 

446. Lichens are ecologically important because :

 
 
 
 

447. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

449. Which of the following shows heterotrichous habit?

 
 
 
 

450. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

452. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Rhizoids of Riccia are :

 
 
 
 

456. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

457. Virion refers to:

 
 
 
 

458. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

461. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

462. To which class Riccia belongs :

 
 
 
 

463. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

468. Clostridium can:

 
 
 
 

469. Black rust of wheat is caused by:

 
 
 
 

470. The root nodules of leguminous plants contain:

 
 
 
 

471. Which of the following have algal zone?

 
 
 
 

472. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

476. Psilotum is:

 
 
 
 

477. Lichens reproduce by :

 
 
 
 

478. Little leaf disease of Brinjal is caused by:

 
 
 
 

479. TMV was isolated in crystalline form by:

 
 
 
 

480. Gametophyte is the main plant body in :

 
 
 
 

481. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

484. The roots of Cycas are :

 
 
 
 

485. Acetobacter is useful in:

 
 
 
 

486. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

488.

489. The spermatozoids of Cycas are :

 
 
 
 

490. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

493. Embryo formation is not known in :

 
 
 
 

494. The sporangium of fern contains nearly:

 
 
 
 

495. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498. Pinus is:

 
 
 
 

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

 
 
 
 

500. Tautonyms are illegitimate in:

 
 
 
 

501. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

504. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

509. Lichen show :

 
 
 
 

510. Bacteria differ from viruses in being sensitive to:

 
 
 
 

511. The tree fern is:

 
 
 
 

512. Rice, pea, potato are :

 
 
 
 

513. Iodine is obtained from :

 
 
 
 

514. Enteric bacteria are those bacteria that live:

 
 
 
 

515. Gymnosperms could also be called as:

 
 
 
 

516. White rust of crucifers is caused by:

 
 
 
 

517. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

519. Bacteria are placed under:

 
 
 
 

520. Sporophyte of Funaria is :

 
 
 
 

521. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

525. Which is an edible fungus?

 
 
 
 

526. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

529. Which fixes atmospheric nitrogen?

 
 
 
 

530. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

533. Most resistant spore in bacteria is:

 
 
 
 

534. Who discovered streptomycin?

 
 
 
 

535. The rhizoids of Funaria are :

 
 
 
 

536. Which of the following are absent in Mycoplasma?

 
 
 
 

537. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

539. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

541. Desired type of Cycas can be grown by:

 
 
 
 

542. In Gymnocarpeae the fruiting body is :

 
 
 
 

543. Which is the correct statement about Selaginella?

 
 
 
 

544. Proembryo in Pinus is :

 
 
 
 

545. Which have the largest antherozoid?

 
 
 
 

546. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

548. Fruits are not found in :

 
 
 
 

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

 
 
 
 

550. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

552. Centric discoid form of diatom is:

 
 
 
 

553. Black rust of wheat is caused by:

 
 
 
 

554. Botulism is a:

 
 
 
 

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

 
 
 
 

556. The teeth of peristome of Funaria are :

 
 
 
 

557. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

560. The plants of Funaria grow :

 
 
 
 

561. The Rhizopus gametes are formed in:

 
 
 
 

562. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

564. Infective part of virus was discovered by:

 
 
 
 

565. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. Most appropriate word for protozoans is:

 
 
 
 

569. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

571. The fern plant is:

 
 
 
 

572. Which group of algae have an incipient nucleus?

 
 
 
 

573. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

575. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

580. Linnaeus is credited with introducing:

 
 
 
 

581. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

583. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

585. Acellular slime mold is/are:

 
 
 
 

586. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

587. Pollination in Pinus is :

 
 
 
 

588. Early blight of potato is caused by:

 
 
 
 

589. Anoxygenic photosynthesis occurs in:

 
 
 
 

590. Simple polyembryony is found in :

 
 
 
 

591. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

593. Some diseases caused by bacteria are:

 
 
 
 

594. John Hutchinson divided dicots into two divisions:

 
 
 
 

595. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

597. Common phycobiont in a lichen is :

 
 
 
 

598. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. In moss, reduction division occurs in :

 
 
 
 

602. Quarantine regulations are concerned with:

 
 
 
 

603. Pythium debaryanum is the causative agent of:

 
 
 
 

604. Vegetative reproduction in Cycas is by means of :

 
 
 
 

605. The sporophyte of Riccia is represented by :

 
 
 
 

606. Fern prothallus is:

 
 
 
 

607. Which lichen is called Reindeer moss?

 
 
 
 

608. Which is a tautonym?

 
 
 
 

609. Each chloroplast in Spirogyra bears :

 
 
 
 

610. Placenta in fern is:

 
 
 
 

611. The gametophyte produced by apospory is :

 
 
 
 

612. The microsporophylls on the cone of Cycas are :

 
 
 
 

613. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

615. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

617. All protozoans possess:

 
 
 
 

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

 
 
 
 

619. E coli is a:

 
 
 
 

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

 
 
 
 

621. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

623. All algae have:

 
 
 
 

624. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

629. The truncated cone of HIV consists of:

 
 
 
 

630. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

632. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

634. Male gametes in Dryopteris are:

 
 
 
 

635. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

638. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

639. Which of the following is true for Selaginella?

 
 
 
 

640. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. The largest alga is:

 
 
 
 

646. The alga, Spirogyra are found in :

 
 
 
 

647. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

648. The leafy fern plant represents the:

 
 
 
 

649. Typhoid in man is caused by:

 
 
 
 

650. Lichens are indicators of :

 
 
 
 

651. Standard size of a herbarium sheet is:

 
 
 
 

652. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

654. 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?

 
 
 
 

655. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

660. Redness of red sea is due to :

 
 
 
 

661. 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:

 
 
 
 

662. What is absent in Deuteromycetes?

 
 
 
 

663. Embryophyta includes:

 
 
 
 

664. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

670. Aflatoxin is produced as a product in :

 
 
 
 

671. Diploxylic vascular bundles are found in:

 
 
 
 

672. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

675. Chief constituents of bordeaux mixture are :

 
 
 
 

676. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

678. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

680. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

683. 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:

 
 
 
 

684. Mycoplasma are sensitive to:

 
 
 
 

685. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

687. The mode of nutrition of bacteria is usually:

 
 
 
 

688. Metulae are found in:

 
 
 
 

689. Which causes red tide?

 
 
 
 

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

 
 
 
 

691. Longest known virus is:

 
 
 
 

692. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

694. NBG of Lucknow is now named as:

 
 
 
 

695. Cyathia is characterized by:

 
 
 
 

696. Embryophyta includes :

 
 
 
 

697. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

699. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

701. Bryophyta have been placed in cryptogams because:

 
 
 
 

702. Water bloom is generally caused by :

 
 
 
 

703. The stele of Dryopteris is a:

 
 
 
 

704. Absorptive nutrition is:

 
 
 
 

705. The disease symptom necrosis refers to :

 
 
 
 

706. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

710. Cycas is :

 
 
 
 

711. In Herpes virus DNA is:

 
 
 
 

712. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

715. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

718. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

720. The male gametes of Pinus are :

 
 
 
 

721. Majority of lichens are :

 
 
 
 

722. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. Photosynthetic bacteria have:

 
 
 
 

727. Which class of Protozoa includes all parasitic forms?

 
 
 
 

728. Isomorphic type alternation of generation is found in:

 
 
 
 

729. The sporangiophores in Rhizopus are:

 
 
 
 

730. Heterocysts are found in :

 
 
 
 

731. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

736. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

739. Generic name of mango is:

 
 
 
 

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

 
 
 
 

741. Leprosy is caused by:

 
 
 
 

742. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

744. The archegonia in Selaginella develop on:

 
 
 
 

745. The Rhizopus is:

 
 
 
 

746. Some biologists have used the term Mycetozoa for:

 
 
 
 

747. Bacteriophages have been used as:

 
 
 
 

748. The similarity between cyanobacteria and bacteria:

 
 
 
 

749. Viruses are considered to be:

 
 
 
 

750. Bentham and Hooker placed gymnosperms:

 
 
 
 

751. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Club moss and Peat moss belong to:

 
 
 
 

755. Which is absent from the xylem of Cycas?

 
 
 
 

756. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

757. Ethylene oxide is widely used to:

 
 
 
 

758. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

760. Bacteria which are spherical are called:

 
 
 
 

761. Cell walls of Gram-positive bacteria contain:

 
 
 
 

762. The flagella of Chlamydomonas are:

 
 
 
 

763. LSD is:

 
 
 
 

764. In angiosperms double fertilization represents:

 
 
 
 

765. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

767. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

768. In moss, calyptra is formed from:

 
 
 
 

769. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

771. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

773. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

775. Spores of which plants have chloroplast:

 
 
 
 

776. The leaves of Funaria are :

 
 
 
 

777. What is mycorrhiza?

 
 
 
 

778. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

780. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

783. Nannandria are:

 
 
 
 

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

 
 
 
 

785. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

787. The source of litmus is :

 
 
 
 

788. Ovary is absent in:

 
 
 
 

789. The zoospores of Ulothrix are :

 
 
 
 

790. Vascular cryptogam is the term used for :

 
 
 
 

791. Photoautotrophic bacteria have:

 
 
 
 

792. Which bacteria convert nitrate into nitrogen?

 
 
 
 

793. The upper region of moss capsule is :

 
 
 
 

794. The largest known bacterium is:

 
 
 
 

795. Antibiotics cure the disease by:

 
 
 
 

796. Pteridophyta are also called:

 
 
 
 

797. Which is a redwood tree?

 
 
 
 

798. The lambda phase is a:

 
 
 
 

799. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

801. The phloem of vascular system of Cycas is :

 
 
 
 

802. The genetic material of poxvirus is:

 
 
 
 

803. Which is a fungicide?

 
 
 
 

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

 
 
 
 

805. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

806. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

808. What is the role of nitrifying bacteria?

 
 
 
 

809. Germination of the seed of Pinus is :

 
 
 
 

810. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

812. Pseudomycelium is found in:

 
 
 
 

813. All archaebacteria lack:

 
 
 
 

814. The order generally ends with:

 
 
 
 

815. Pollination in Cycas takes place by :

 
 
 
 

816. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

821. Sporophyte of fern is:

 
 
 
 

822. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

824. Liverworts are included in :

 
 
 
 

825. Water-net is the name of:

 
 
 
 

826. Downy mildew disease is caused by :

 
 
 
 

827. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

829. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. Saccharomyces is well known for:

 
 
 
 

834. In moss, stomata are found:

 
 
 
 

835. Lichens form the first community in

 
 
 
 

836. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. Black rust of wheat is caused by:

 
 
 
 

840. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

848. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

850. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

852. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

856. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

858. Penicillin was discovered by:

 
 
 
 

859. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. Total parasites belong to:

 
 
 
 

864. 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?