Quiz_Random

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. The chief characteristic of class Ascomycetes is:

 
 
 
 

5. Mycoplasma are:

 
 
 
 

6. Botulism is a:

 
 
 
 

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

 
 
 
 

8. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

13. Saccharomyces ludwigii ascus produces:

 
 
 
 

14. Select the wrong statement:

 
 
 
 

15. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

17. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. The sexual reproductive organs in Rhizopus are:

 
 
 
 

24. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. The two conjugating gametangia of Rhizopus are:

 
 
 
 

34. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

36. Kuru, a human disease is caused by:

 
 
 
 

37. The fungi are mostly:

 
 
 
 

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

 
 
 
 

39. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

40. Ovules are not found enclosed in ovary of:

 
 
 
 

41. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. The chloroplast of Chlamydomonas are:

 
 
 
 

46. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

48. Economic importance of bacteria lies in their being:

 
 
 
 

49. Gram stain is used to:

 
 
 
 

50. The young leaves of Cycas have :

 
 
 
 

51. Bacteriophages have been used as:

 
 
 
 

52. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

61. Bacteria were first discovered by:

 
 
 
 

62. The fungi are usually:

 
 
 
 

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

 
 
 
 

64. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

66. Spermatophyta are characterized by producing:

 
 
 
 

67. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

69. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

71. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. The leaves of Funaria are :

 
 
 
 

75. The group algae possesses representatives belonging to kingdom:

 
 
 
 

76. Most primitive kind of flower is represented by:

 
 
 
 

77. Some bacteria cannot be killed easily because of:

 
 
 
 

78. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

80. Saccharomyces is well known for:

 
 
 
 

81. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

83. Acetobacter is useful in:

 
 
 
 

84. In angiosperms double fertilization represents:

 
 
 
 

85. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. Banana bunchy top is caused by :

 
 
 
 

89. Maximum diversity of life forms occurs in :

 
 
 
 

90. Facultative saprophyte is:

 
 
 
 

91. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

92. Bacteria which are spherical are called:

 
 
 
 

93. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

98. Diploxylic vascular bundles are found in:

 
 
 
 

99. Pasteurized milk is:

 
 
 
 

100. True sexuality is not found in:

 
 
 
 

101. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

104. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

110. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

112. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

115.

116. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

117. What are plasmids?

 
 
 
 

118. Green plants are classified as :

 
 
 
 

119. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

124. Lichens reproduce by :

 
 
 
 

125. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

127. Ginkgo biloba is a:

 
 
 
 

128. Winged pollen grains are found in :

 
 
 
 

129. Oswald Tippo’s classification is:

 
 
 
 

130. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. The term stele was given by:

 
 
 
 

134. Lichens form the first community in

 
 
 
 

135. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. Pythium debaryanum is the causative agent of:

 
 
 
 

142. LSD is:

 
 
 
 

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

 
 
 
 

144. The order generally ends with:

 
 
 
 

145. Helotism word is used for the symbiosis between :

 
 
 
 

146. Psilotum is:

 
 
 
 

147. Funaria is :

 
 
 
 

148. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

153. The alga, Spirogyra are found in :

 
 
 
 

154. The sporophyte of Riccia is represented by :

 
 
 
 

155. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

158. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

160. Fern prothallus is:

 
 
 
 

161. The leaf of Cycas shows:

 
 
 
 

162. The smallest bacterium is:

 
 
 
 

163. The most primitive vascular plants is:

 
 
 
 

164. White rust of crucifers is caused by:

 
 
 
 

165. Redness of red sea is due to :

 
 
 
 

166. In moss, peristomial teeth are:

 
 
 
 

167. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

169. In Gymnocarpeae the fruiting body is :

 
 
 
 

170. Which is absent from the xylem of Cycas?

 
 
 
 

171. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

174. Viruses have:

 
 
 
 

175. Liverworts are included in :

 
 
 
 

176. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

177. Yeast grows more rapidly in:

 
 
 
 

178. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

180. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

183. Early blight of potato is caused by:

 
 
 
 

184. The male gametes of Pinus are :

 
 
 
 

185. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

187. Who discovered heterothallism in fungi?

 
 
 
 

188. The ferns are usually found:

 
 
 
 

189. Which is an exception to cell theory?

 
 
 
 

190. What is absent in Deuteromycetes?

 
 
 
 

191. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

194. Longest known virus is:

 
 
 
 

195. Disease resistant plant varieties can be produced by :

 
 
 
 

196. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

198. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

200. Heterosporous pteridophytes always form:

 
 
 
 

201. Pythium debaryanum is the causative agent of:

 
 
 
 

202. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

203. Which of the following have algal zone?

 
 
 
 

204. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

207. The sporangiophores in Rhizopus are:

 
 
 
 

208. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

210. Lichens show :

 
 
 
 

211. Mycoplasmas are not viruses in nature because:

 
 
 
 

212. Small epidermal swellings due to infection are called :

 
 
 
 

213. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. The disease symptom necrosis refers to :

 
 
 
 

217. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

219. How a fern differs from a moss?

 
 
 
 

220. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. The plants of Funaria grow :

 
 
 
 

224. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

228. Funaria can be differentiated from Cycas :

 
 
 
 

229. Bryophyta have been placed in cryptogams because:

 
 
 
 

230. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

232. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

238. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

241. Fruits are not found in:

 
 
 
 

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

 
 
 
 

243. Black rust of wheat is caused by:

 
 
 
 

244. Majority of lichens are :

 
 
 
 

245. Sexual reproduction of lichen is due to :

 
 
 
 

246. Rhizopus and yeast are usually:

 
 
 
 

247. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

251. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

252. Which condition is found in Cycas?

 
 
 
 

253. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. Ovary is absent in :

 
 
 
 

257. Cyathia is characterized by:

 
 
 
 

258. The largest alga is:

 
 
 
 

259. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

261. Photosynthetic protists belong to:

 
 
 
 

262. Zoogametes are not found in:

 
 
 
 

263. Black rust of wheat is caused by:

 
 
 
 

264. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

266. Enzymes are absent in:

 
 
 
 

267. Bryophyta have a special character from other plants:

 
 
 
 

268. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

270. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

274. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

276. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

279. 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:

 
 
 
 

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

 
 
 
 

281. Aflatoxin is produced by:

 
 
 
 

282. The role of meiosis is for:

 
 
 
 

283. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

286. The fungi used as food are:

 
 
 
 

287. All protozoans possess:

 
 
 
 

288. The root nodules of leguminous plants contain:

 
 
 
 

289. Pteridophytes are also known as :

 
 
 
 

290. Spirogyra differs from moss protonema in having :

 
 
 
 

291. The chief characteristic of bryophyta is that :

 
 
 
 

292. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

295. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

298. Most appropriate word for protozoans is:

 
 
 
 

299. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

302. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

304. Vascular cryptogam is the term used for :

 
 
 
 

305. Sporophyte of fern is:

 
 
 
 

306. Common phycobiont in a lichen is :

 
 
 
 

307. Most common type of conjugation in Spirogyra is :

 
 
 
 

308. All algae have:

 
 
 
 

309. 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:

 
 
 
 

310. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

312. Which bacteria convert nitrate into nitrogen?

 
 
 
 

313. Number of capsomeres forming capsid of TMV is:

 
 
 
 

314. Saccharomyces is used in:

 
 
 
 

315. Wine turns sour because of:

 
 
 
 

316. The roots of Cycas are :

 
 
 
 

317. In Funaria, calyptra is derived from :

 
 
 
 

318. Vegetative reproduction in Cycas is by means of :

 
 
 
 

319.

 

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

 
 
 
 

321. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

323. Funaria are commonly found :

 
 
 
 

324. Funaria is a Bryophyta because :

 
 
 
 

325. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

328. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

331. Which of the following is a monocot?

 
 
 
 

332. Which of the following have a prokaryotic cell?

 
 
 
 

333. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

335. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

337. Which is a fungicide?

 
 
 
 

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

 
 
 
 

339. In a bacteriophage, DNA is present in:

 
 
 
 

340. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

345. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. Triple antigen injection or vaccine are for:

 
 
 
 

349. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

351. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

353. Penicillin is obtained from:

 
 
 
 

354. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

355. Iodine is obtained from:

 
 
 
 

356. E coli is a:

 
 
 
 

357. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

359. Winged seeds are found in :

 
 
 
 

360. Heterotrichous habit means :

 
 
 
 

361. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

365. Which is an edible fungus?

 
 
 
 

366. Coenogamete is found in:

 
 
 
 

367. Typhoid in man is caused by:

 
 
 
 

368. Protistan algae obtain their food as:

 
 
 
 

369. In a diplontic life cycle:

 
 
 
 

370. The lambda phase is a:

 
 
 
 

371. Meiosis in Ulothrix takes place:

 
 
 
 

372. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

375. In Herpes virus DNA is:

 
 
 
 

376. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

378. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

381. Cell walls of Gram-positive bacteria contain:

 
 
 
 

382. Chemosynthetic bacteria are:

 
 
 
 

383. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

386. The zygospore in Rhizopus on germination forms:

 
 
 
 

387. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

389. 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:

 
 
 
 

390. Club moss and Peat moss belong to:

 
 
 
 

391. The Rhizopus is:

 
 
 
 

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

 
 
 
 

393. Who named prion?

 
 
 
 

394. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

397. Rhizopus belongs to:

 
 
 
 

398. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

400. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

402. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

404. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

410. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

418. The sporophyte of Riccia is :

 
 
 
 

419. Broad spectrum antibiotic is, which:

 
 
 
 

420. Male gametophyte of Selaginella is found:

 
 
 
 

421. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

426. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

428. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

435. Proembryo in Pinus is :

 
 
 
 

436. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

438. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

440. Lichens are the indicator of pollution :

 
 
 
 

441. Viruses are commonly transmitted in plants through:

 
 
 
 

442. In Funaria :

 
 
 
 

443. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

445. Mycoplasma contains:

 
 
 
 

446. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

452. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Select the wrong statement:

 
 
 
 

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

 
 
 
 

457. An alga which is rich in proteins:

 
 
 
 

458. Red rot of sugarcane is caused by :

 
 
 
 

459. Oswald Tippo’s classification was based on :

 
 
 
 

460. Fruits are not found in Cycas because:

 
 
 
 

461. Fruiting body of lichens is :

 
 
 
 

462. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

464. Mycoplasma is different from bacteria due to:

 
 
 
 

465. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

467. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

469. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

472. Water bloom is generally caused by :

 
 
 
 

473. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

474. Red rot of sugarcane is caused by:

 
 
 
 

475. Virion refers to:

 
 
 
 

476. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

479. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

484. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

489. Pteridophyta are also called:

 
 
 
 

490.

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

 
 
 
 

492. Gametophyte is the main plant body in :

 
 
 
 

493. Placenta in fern is:

 
 
 
 

494. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

496. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

498. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

500. Which organisms are the oldest life forms?

 
 
 
 

501. Water-net is the name of:

 
 
 
 

502. Photoautotrophic bacteria have:

 
 
 
 

503. 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:

 
 
 
 

504. Embryo formation is not known in :

 
 
 
 

505. In moss, sporogenous tissue arises from:

 
 
 
 

506. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

508. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

510. In binomial system most of the words are:

 
 
 
 

511. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

513. The most important property of yeast is:

 
 
 
 

514. The source of litmus is :

 
 
 
 

515. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. Most of the algae are :

 
 
 
 

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

 
 
 
 

523. Endemic plants are characterised by their:

 
 
 
 

524. Each chloroplast in Spirogyra bears :

 
 
 
 

525. The disease apple scab is caused by:

 
 
 
 

526. 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?

 
 
 
 

527. Asexual reproductive body of Volvox is called:

 
 
 
 

528. Pasteurization of milk involves heating for:

 
 
 
 

529. Botulinum toxin effects:

 
 
 
 

530. Clostridium can:

 
 
 
 

531. Embryophyta includes:

 
 
 
 

532. Ectocarpus produces:

 
 
 
 

533. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. Heterocysts are found in :

 
 
 
 

537. . Tapetum develops in:

 
 
 
 

538. Yeast is a source of:

 
 
 
 

539. Spermatophyta are characterized by producing:

 
 
 
 

540. Germ theory of disease was proposed by:

 
 
 
 

541. Heterospory is the production of:

 
 
 
 

542. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

545. Woody climbers are known as :

 
 
 
 

546. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

548. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

550. Centric discoid form of diatom is:

 
 
 
 

551. Pollination drop is:

 
 
 
 

552. The chromosomal number in:

 
 
 
 

553. Water-borne bacterial diseases are:

 
 
 
 

554. Mucilaginous canals in Cycas are found in :

 
 
 
 

555. 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:

 
 
 
 

556. Sleeping sickness disease in man is caused by:

 
 
 
 

557. Which is not true for Escherichia coli?

 
 
 
 

558. How is moss different from fern?

 
 
 
 

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

 
 
 
 

560. Who discovered streptomycin?

 
 
 
 

561. Some biologists have used the term Mycetozoa for:

 
 
 
 

562. Germination of the seed of Pinus is :

 
 
 
 

563. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. One of the distinctive feature of Spirogyra is :

 
 
 
 

568. Which of the following does not contain chlorophyll?

 
 
 
 

569. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

571. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

573. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

575. Choose the correct statement about Spirogyra:

 
 
 
 

576. Ulothrix produces :

 
 
 
 

577. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

579. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

581. Bacteria are found everywhere, except:

 
 
 
 

582. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. Meristele of fern is:

 
 
 
 

591. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

593. In Cycas microsporangia are borne on:

 
 
 
 

594. Fertility of the soil is increased by:

 
 
 
 

595. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

597. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

599. Polystelic condition is found in:

 
 
 
 

600. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

602. The vascular bundles of Cycas stem are :

 
 
 
 

603.

604. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

606. Cycas plant in appearance resembles :

 
 
 
 

607. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

612. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

614. Standard size of a herbarium sheet is:

 
 
 
 

615. Lichens reproduce by :

 
 
 
 

616. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

618. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

621. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

626. The first to isolate a plant virus was:

 
 
 
 

627. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

629. Mixed cropping helps :

 
 
 
 

630. Amoeba is a member of the phylum:

 
 
 
 

631. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. The lichens growing on rocks are called :

 
 
 
 

635. Nannandria are:

 
 
 
 

636. Which causes red tide?

 
 
 
 

637. 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?

 
 
 
 

638. Lichen show :

 
 
 
 

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

 
 
 
 

640. Select the correct statement: (NEET 2016)

 
 
 
 

641. The orders generally have the uniform endings:

 
 
 
 

642. The mode of nutrition of bacteria is usually:

 
 
 
 

643. Facultative parasite is:

 
 
 
 

644. Which is the correct statement about Selaginella?

 
 
 
 

645. Which have the largest antherozoid?

 
 
 
 

646. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

648. NBG of Lucknow is now named as:

 
 
 
 

649. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

651. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

652. The spur of Pinus roxburghii has :

 
 
 
 

653. Isomorphic type alternation of generation is found in:

 
 
 
 

654. Seeds are characteristically found in:

 
 
 
 

655. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

656. Who discovered cyanophages?

 
 
 
 

657. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

658. Ergot of rye is caused by:

 
 
 
 

659. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

663. Absorptive nutrition is:

 
 
 
 

664. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

668. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

669. Generic name of mango is:

 
 
 
 

670. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

675. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

677. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

679. The zoospores of Ulothrix are :

 
 
 
 

680. The fern plant is:

 
 
 
 

681. Which group of algae have an incipient nucleus?

 
 
 
 

682. Pseudomycelium is found in:

 
 
 
 

683. Which of the following is true for viruses?

 
 
 
 

684. In Cycas the fertilization is:

 
 
 
 

685. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

688. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

690. Green plants are classified as:

 
 
 
 

691. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

697. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

699. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

701. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

703. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

707. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

709. The middle sterile part of capsule is called:

 
 
 
 

710. The prothallus of fern is:

 
 
 
 

711. To which country Antony van Leeuwenhoek belong?

 
 
 
 

712. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

718. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

721. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

724. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

726. The archegonia in Selaginella develop on:

 
 
 
 

727. The gametophyte of fern is as:

 
 
 
 

728. Total parasites belong to:

 
 
 
 

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

 
 
 
 

730. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

732. Which is a tautonym?

 
 
 
 

733. Black rust of wheat is caused by:

 
 
 
 

734. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

737. The rhizoids of Funaria are :

 
 
 
 

738. Rhizoids of Riccia are :

 
 
 
 

739. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

742. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

744. Which is not found in bacteria?

 
 
 
 

745. Ovules are not found enclosed in ovary in :

 
 
 
 

746. Usually, bacteria reproduce by:

 
 
 
 

747. The coralloid roots are :

 
 
 
 

748. The development of Selaginella embryo is:

 
 
 
 

749. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

751. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. The tallest moss in the world is :

 
 
 
 

758. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

759. Fruits are not found in :

 
 
 
 

760. Embryophyta includes :

 
 
 
 

761. Selaginella differs from Moss in having:

 
 
 
 

762. Acellular slime mold is/are:

 
 
 
 

763. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

767. In moss, reduction division occurs in :

 
 
 
 

768. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

770. Which is the nuclear material in bacteria?

 
 
 
 

771. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

773. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

776. The flagella of Chlamydomonas are:

 
 
 
 

777. Sporophyte of Funaria is :

 
 
 
 

778. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

783. Which of the following is true for Selaginella?

 
 
 
 

784. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

786. Mostly type of zygospore in Ulothrix is:

 
 
 
 

787. John Hutchinson divided dicots into two divisions:

 
 
 
 

788. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

796. In Pteris, the archegonia are present:

 
 
 
 

797. Climbers are found in genus:

 
 
 
 

798. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

800. Cycas revoluta is widely grown as :

 
 
 
 

801. Which of the following is a heterosporous pteridophyte?

 
 
 
 

802. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

804. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. TMV was isolated in crystalline form by:

 
 
 
 

809. Which of the following statements is not correct?

 
 
 
 

810. 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:

 
 
 
 

811. Metulae are found in:

 
 
 
 

812. Funaria is :

 
 
 
 

813. Protists which are diploid reproduce sexually by:

 
 
 
 

814. What is mycorrhiza?

 
 
 
 

815. Chief constituents of bordeaux mixture are :

 
 
 
 

816. Fern plants are:

 
 
 
 

817. Detailed study of bacteriophage was made by:

 
 
 
 

818. Bacteriophage consists of:

 
 
 
 

819. Fern prothallus produces:

 
 
 
 

820. Quarantine regulations are concerned with:

 
 
 
 

821. Cyanophage is a virus that attacks:

 
 
 
 

822. The chloroplast in Ulothrix is :

 
 
 
 

823. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

825. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

827. Siphonogamy is found in:

 
 
 
 

828. The archegonia of Selaginella are differentiated by:

 
 
 
 

829. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

836. What is a vector?

 
 
 
 

837. What is streptomycin?

 
 
 
 

838. The antibiotic is obtained from:

 
 
 
 

839. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

845. Cycas is different from mango in :

 
 
 
 

846. First animal pathogenic virus was discovered by:

 
 
 
 

847. Late blight of potato is caused by :

 
 
 
 

848. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

850. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

852. Bacteria differ from viruses in being sensitive to:

 
 
 
 

853. The sporangium of fern contains nearly:

 
 
 
 

854. Diphtheria is caused by:

 
 
 
 

855. Penicillin was discovered by:

 
 
 
 

856. Why is Cycas called a living fossil?

 
 
 
 

857. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

859. Pinus microsporophyll bears:

 
 
 
 

860. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

862. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

864. Agar-agar is obtained from: