Quiz_Random

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

 
 
 
 

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

 
 
 
 

3. Rhizophore of Selaginella is:

 
 
 
 

4. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

6. Halophiles are the bacteria that require for growth:

 
 
 
 

7. The antibiotic is obtained from:

 
 
 
 

8. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

10. Nitrifying bacteria play an important role by converting:

 
 
 
 

11. Metulae are found in:

 
 
 
 

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

 
 
 
 

13. Pteridophytes are also known as :

 
 
 
 

14. The seedless plants which possess vascular tissues are:

 
 
 
 

15. The phloem of vascular system of Cycas is :

 
 
 
 

16. Vegetative reproduction in Cycas is by means of :

 
 
 
 

17. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

25. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

27. 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?

 
 
 
 

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

 
 
 
 

29. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. Fairy ring is the name given to:

 
 
 
 

33. Embryophyta includes:

 
 
 
 

34. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

35. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

37. The most primitive vascular plants is:

 
 
 
 

38. Who discovered cyanophages?

 
 
 
 

39. The smallest unit of classification is:

 
 
 
 

40. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

42. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. What is absent in Deuteromycetes?

 
 
 
 

46. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

48. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

50. A gill of Agaricus:

 
 
 
 

51. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

52. Cycas is similar to a mustard plant :

 
 
 
 

53. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

55. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

57. Embryo formation is not known in :

 
 
 
 

58. Interferon is a:

 
 
 
 

59. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

61. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Gymnosperms could also be called as:

 
 
 
 

65. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

68. Which of the following does not contain chlorophyll?

 
 
 
 

69. Spirogyra represents the :

 
 
 
 

70. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

72. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

74. Placenta in fern is:

 
 
 
 

75. Fern prothallus produces:

 
 
 
 

76. Funaria is a Bryophyta because :

 
 
 
 

77. The orders generally have the uniform endings:

 
 
 
 

78. The flagella of Chlamydomonas are:

 
 
 
 

79. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86.

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

 
 
 
 

88. Meiosis in Ulothrix takes place:

 
 
 
 

89. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

91. Heterocysts are found in :

 
 
 
 

92. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. In Funaria, calyptra is derived from :

 
 
 
 

96. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

98. Cycas is different from mango in :

 
 
 
 

99. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

100. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

102. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

104. Ovary is absent in :

 
 
 
 

105. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

107. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

111. . Tapetum develops in:

 
 
 
 

112. TMV was isolated in crystalline form by:

 
 
 
 

113. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. Yeast grows more rapidly in:

 
 
 
 

117. Which of the following statements is not correct?

 
 
 
 

118. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

120. Most primitive kind of flower is represented by:

 
 
 
 

121. Acellular slime mold is/are:

 
 
 
 

122. Water-net is the name of:

 
 
 
 

123. Select the correct statement: (NEET 2016)

 
 
 
 

124. Which causes red tide?

 
 
 
 

125. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

127. Discovery of penicillin was based on:

 
 
 
 

128. Cycas revoluta is widely grown as :

 
 
 
 

129. The prothallus of fern represents the plant:

 
 
 
 

130. In Pteris, the archegonia are present:

 
 
 
 

131. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

133. Roots are absent in :

 
 
 
 

134. Nannandria are:

 
 
 
 

135. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

143. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

145. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. The tree fern is:

 
 
 
 

150. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

155. The first to isolate a plant virus was:

 
 
 
 

156. Sometimes the bacterial cell is enclosed in:

 
 
 
 

157. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

159. Bacteria are considered to be plants because they:

 
 
 
 

160. The truncated cone of HIV consists of:

 
 
 
 

161. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

163. Photosynthetic bacteria have:

 
 
 
 

164. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. Standard size of a herbarium sheet is:

 
 
 
 

169. Diploxylic vascular bundles are found in:

 
 
 
 

170. True sexuality is not found in:

 
 
 
 

171. Etiology includes the study of :

 
 
 
 

172. Streptomyces falls under:

 
 
 
 

173. The lambda phase is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

177. Centric discoid form of diatom is:

 
 
 
 

178. Heterospory is the production of:

 
 
 
 

179. The sori in Dryopteris are found on:

 
 
 
 

180. An Hfr bacterium is one that contains:

 
 
 
 

181. Cleavage polyembryony is found in :

 
 
 
 

182. Most of the algae are :

 
 
 
 

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

 
 
 
 

184. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

186. All protozoans possess:

 
 
 
 

187. The Rhizopus gametes are formed in:

 
 
 
 

188. Which one of the following statement is wrong?

 
 
 
 

189. 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:

 
 
 
 

190. The central part of Funaria axis is :

 
 
 
 

191. Gametophyte is the main plant body in :

 
 
 
 

192. Rhizoids of Riccia are :

 
 
 
 

193. Ethylene oxide is widely used to:

 
 
 
 

194. Pinus microsporophyll bears:

 
 
 
 

195. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

198. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

200. In Gymnocarpeae the fruiting body is :

 
 
 
 

201. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

203. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

208. The roots of Cycas are :

 
 
 
 

209. Germination of the seed of Pinus is :

 
 
 
 

210. Embryophyta includes :

 
 
 
 

211. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

214. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

217. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

219. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

221. Protozoans are considered animals because these are:

 
 
 
 

222. The stele of Dryopteris is a:

 
 
 
 

223. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

225. 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?

 
 
 
 

226. The microsporophylls on the cone of Cycas are :

 
 
 
 

227. Which of the following is true for viruses?

 
 
 
 

228. How is moss different from fern?

 
 
 
 

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

 
 
 
 

230. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

233. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. The group algae possesses representatives belonging to kingdom:

 
 
 
 

237. In moss, stomata are found:

 
 
 
 

238. Cellular slime mold is:

 
 
 
 

239. Triple antigen injection or vaccine are for:

 
 
 
 

240. The fungi are mostly:

 
 
 
 

241. White rust of crucifers is caused by:

 
 
 
 

242. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

243. The archegonia of Selaginella are differentiated by:

 
 
 
 

244. Bivalved siliceous shell or frustule occur in:

 
 
 
 

245. The archegonia in Selaginella develop on:

 
 
 
 

246. Bacteria are found everywhere, except:

 
 
 
 

247. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

249. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

250. Chemosynthetic bacteria are:

 
 
 
 

251. Ulothrix produces :

 
 
 
 

252. Reserve food in Euglena is:

 
 
 
 

253. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

255. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

257. Meristele of fern is:

 
 
 
 

258. Which is a fungicide?

 
 
 
 

259. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

262. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. Parmelia belongs to :

 
 
 
 

268. 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:

 
 
 
 

269. The chloroplast in Ulothrix is :

 
 
 
 

270. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

273. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

275. Absorptive nutrition is:

 
 
 
 

276. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

278. The sporangia of Selaginella are attached:

 
 
 
 

279. The plants of Funaria grow :

 
 
 
 

280. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

282. 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:

 
 
 
 

283. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

285. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

287. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

288. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

290. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

292. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

295. Which is a gametophytic tissue?

 
 
 
 

296. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

301. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

303. The development of sporangium in Selaginella is:

 
 
 
 

304. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. 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:

 
 
 
 

310. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

312. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

314. Which statement is wrong in regard to bacteria?

 
 
 
 

315. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

318. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

320. Which part of Riccia bears nurse cells?

 
 
 
 

321. Bacteria growing on synthetic medium are called:

 
 
 
 

322. Nitrogen-fixing bacteria may be located:

 
 
 
 

323. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

324. Which is absent from the xylem of Cycas?

 
 
 
 

325. In moss, reduction division occurs in :

 
 
 
 

326. Funaria is :

 
 
 
 

327. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

329. Lichens are ecologically important because :

 
 
 
 

330. Heterotrichous habit means :

 
 
 
 

331. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

333. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

335. Longest known virus is:

 
 
 
 

336. Pythium debaryanum is the causative agent of:

 
 
 
 

337. Lichens reproduce by :

 
 
 
 

338. The fungi used as food are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

341. Viruses have:

 
 
 
 

342. Sexual reproduction in Rhizopus is by:

 
 
 
 

343. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

345. Red rot of sugarcane is caused by :

 
 
 
 

346. Typhoid in man is caused by:

 
 
 
 

347. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

350. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

352. Germ theory of disease was proposed by:

 
 
 
 

353. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

355. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

360. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

362. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

364. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

366. The photosynthetic protists are:

 
 
 
 

367. Red rot of sugarcane is caused by :

 
 
 
 

368. Which of the following is a parasitic algae?

 
 
 
 

369. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

370. The leafy fern plant represents the:

 
 
 
 

371. Ovules are not found enclosed in ovary in :

 
 
 
 

372. In dinoflagellates, the two flagella are:

 
 
 
 

373. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

376. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

378. Select the wrong statement:

 
 
 
 

379. Chief constituents of bordeaux mixture are :

 
 
 
 

380. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

383. Tautonyms are illegitimate in:

 
 
 
 

384. Leprosy is caused by:

 
 
 
 

385. Bryophyta have been placed in cryptogams because:

 
 
 
 

386. The development of Selaginella embryo is:

 
 
 
 

387. Mycoplasma was discovered by:

 
 
 
 

388. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

390. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

392. In Cycas which structure is equivalent to stamen?

 
 
 
 

393. What is the role of nitrifying bacteria?

 
 
 
 

394. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

398. In Herpes virus DNA is:

 
 
 
 

399. Agar-agar is obtained from:

 
 
 
 

400. Siphonogamy is found in:

 
 
 
 

401. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

404. Mucilaginous canals in Cycas are found in :

 
 
 
 

405. Yeast belongs to class:

 
 
 
 

406. Which bacteria convert nitrate into nitrogen?

 
 
 
 

407. In tracheophyta:

 
 
 
 

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

 
 
 
 

409. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

415. Transfusion tissue is present in the leaflet of:

 
 
 
 

416. Most of the lichens are composed of :

 
 
 
 

417. Protists which are diploid reproduce sexually by:

 
 
 
 

418. 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:

 
 
 
 

419. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

422. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

425. Choose the correct statement about Spirogyra:

 
 
 
 

426. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

429. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

432. Some bacteria cannot be killed easily because of:

 
 
 
 

433. Iodine is obtained from :

 
 
 
 

434. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

439. Which among the following is a shrub?

 
 
 
 

440. Bacteria were first discovered by:

 
 
 
 

441. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

444. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

446. Reproduction in Cycas takes place by :

 
 
 
 

447. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

450. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

451. Green plants are classified as :

 
 
 
 

452. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Pollination in Pinus is :

 
 
 
 

456. Usually, bacteria reproduce by:

 
 
 
 

457. In Cycas the fertilization is:

 
 
 
 

458. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

461. Rhizopus belongs to:

 
 
 
 

462. Lichens are indicators of :

 
 
 
 

463. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. Which of the following is true for Selaginella?

 
 
 
 

467. Who among the following discovered virus?

 
 
 
 

468. Which is an exception to cell theory?

 
 
 
 

469. First animal pathogenic virus was discovered by:

 
 
 
 

470. The chloroplast of Chlamydomonas are:

 
 
 
 

471. Most resistant spore in bacteria is:

 
 
 
 

472. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

474. Bacteria which are spherical are called:

 
 
 
 

475. The teeth of peristome of Funaria are :

 
 
 
 

476. Facultative parasite is:

 
 
 
 

477. Azolla and Salvinia both are:

 
 
 
 

478. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

480. The sexual reproductive organs in Rhizopus are:

 
 
 
 

481. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

483. The Rhizopus is:

 
 
 
 

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

 
 
 
 

485. Antibiotics cure the disease by:

 
 
 
 

486. Lichens are pioneers of vegetation in a :

 
 
 
 

487. Viruses are considered to be:

 
 
 
 

488. Vascular tissue is found in :

 
 
 
 

489. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

491. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

493. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

496. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

498. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

500. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Kuru, a human disease is caused by:

 
 
 
 

507. In angiosperms double fertilization represents:

 
 
 
 

508. Pythium debaryanum is the causative agent of:

 
 
 
 

509. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

510. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514. Mycoplasma contains:

 
 
 
 

515. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

517. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

520. Polystelic condition is found in:

 
 
 
 

521. The young leaves of Cycas have :

 
 
 
 

522. Seeds are characteristically found in :

 
 
 
 

523. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

526.

527. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

533. Disease resistant plant varieties can be produced by :

 
 
 
 

534. Spirogyra differs from moss protonema in having :

 
 
 
 

535. Pasteurized milk is:

 
 
 
 

536. Banana bunchy top is caused by :

 
 
 
 

537. An alga which is rich in proteins:

 
 
 
 

538. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

540. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. Fruits are not found in :

 
 
 
 

544. Which is a tautonym?

 
 
 
 

545. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

547. Pseudomycelium is found in:

 
 
 
 

548. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

551. Acetobacter is useful in:

 
 
 
 

552. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

555. Ectocarpus produces:

 
 
 
 

556. Virion refers to:

 
 
 
 

557. 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:

 
 
 
 

558. Helotism word is used for the symbiosis between :

 
 
 
 

559. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

565. The gametophyte produced by apospory is :

 
 
 
 

566. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

568. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

570. Bacteriophage consists of:

 
 
 
 

571. Most primitive embryophytes are placed in:

 
 
 
 

572. Club moss is the common name of :

 
 
 
 

573. Citrus canker is caused by:

 
 
 
 

574. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

576. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

578. Lichens form the first community in

 
 
 
 

579. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

583. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

585. Sporophyte of Funaria is :

 
 
 
 

586. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

588. Fruits are not found in Cycas because:

 
 
 
 

589. Cryptogams include :

 
 
 
 

590. Diphtheria is caused by:

 
 
 
 

591. Linnaeus is credited with introducing:

 
 
 
 

592. The alga, Spirogyra are found in :

 
 
 
 

593. The fern plant is:

 
 
 
 

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

 
 
 
 

595. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

598. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. Soil fertility is lost by the activities of:

 
 
 
 

603. In Funaria :

 
 
 
 

604. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

607. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

611. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

613. In Cycas:

 
 
 
 

614. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

617. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

620. Who discovered streptomycin?

 
 
 
 

621. Bacteriophages have been used as:

 
 
 
 

622. Black rust of wheat is caused by:

 
 
 
 

623. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

625. Early blight of potato is caused by:

 
 
 
 

626. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

628. In Gymnosperms endosperm is a:

 
 
 
 

629. Plasmids are:

 
 
 
 

630. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

633. Pinus is:

 
 
 
 

634. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

636. Which of the following are absent in Mycoplasma?

 
 
 
 

637. Sleeping sickness disease in man is caused by:

 
 
 
 

638. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

642. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. The upper region of moss capsule is :

 
 
 
 

646. E coli is a:

 
 
 
 

647. Mycoplasma are:

 
 
 
 

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

 
 
 
 

649. Who discovered heterothallism in fungi?

 
 
 
 

650. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

655. Endemic plants are characterised by their:

 
 
 
 

656. 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?

 
 
 
 

657. Red rot of sugarcane is caused by:

 
 
 
 

658. In a diplontic life cycle:

 
 
 
 

659. In moss, sporogenous tissue arises from:

 
 
 
 

660. Cell walls of Gram-positive bacteria contain:

 
 
 
 

661. The order generally ends with:

 
 
 
 

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

 
 
 
 

663. Maximum diversity of life forms occurs in :

 
 
 
 

664. Methanogens belong to:

 
 
 
 

665. Sexual reproduction of lichen is due to :

 
 
 
 

666. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

669. Ovary is absent in:

 
 
 
 

670. Lichens show :

 
 
 
 

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

 
 
 
 

672. To which class Riccia belongs :

 
 
 
 

673. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

675.

 

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

 
 
 
 

677. Aflatoxin is produced by:

 
 
 
 

678. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

681. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

683. Pteridophyta are also called:

 
 
 
 

684. Cyanophage is a virus that attacks:

 
 
 
 

685. The ferns are usually found:

 
 
 
 

686. The zoospores of Ulothrix are :

 
 
 
 

687. What are plasmids?

 
 
 
 

688. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

690. Fern plants are:

 
 
 
 

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

 
 
 
 

692. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

694. Which is an edible fungus?

 
 
 
 

695. The term stele was given by:

 
 
 
 

696. Which fixes atmospheric nitrogen?

 
 
 
 

697. Vascular cryptogams is the term used for:

 
 
 
 

698. The most important property of yeast is:

 
 
 
 

699. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

701. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

703. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

705. Cycas is:

 
 
 
 

706. The coralloid roots are :

 
 
 
 

707. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

709. Pollination in Cycas takes place by :

 
 
 
 

710. Genetic material of TMV is:

 
 
 
 

711. Asexual reproductive body of Volvox is called:

 
 
 
 

712. The sporangium of fern contains nearly:

 
 
 
 

713. Heterospory and ligulate leaves are a feature of:

 
 
 
 

714. The antherozoids of Funaria are :

 
 
 
 

715. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

718. Simple polyembryony is found in :

 
 
 
 

719. The gametophyte of fern bears:

 
 
 
 

720. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

723. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

724. In a bacteriophage, DNA is present in:

 
 
 
 

725. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

727. The gametophyte of fern is as:

 
 
 
 

728. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

730. Most common type of conjugation in Spirogyra is :

 
 
 
 

731. Zoogametes are not found in:

 
 
 
 

732. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

734. Circular DNA is seen in:

 
 
 
 

735. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. Botulinum toxin effects:

 
 
 
 

739. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

744. The rhizoids of Funaria are :

 
 
 
 

745. The vascular bundles of Cycas stem are :

 
 
 
 

746. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

748. Aflatoxin is produced as a product in :

 
 
 
 

749. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

756. Botulism is a:

 
 
 
 

757. In binomial system most of the words are:

 
 
 
 

758. Oswald Tippo’s classification was based on :

 
 
 
 

759. The role of meiosis is for:

 
 
 
 

760. What are Cyanobacteria?

 
 
 
 

761. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. Pasteur is famous for his:

 
 
 
 

765. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

768. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

776. The sporophyte of Riccia is :

 
 
 
 

777. Ergot is obtained from :

 
 
 
 

778. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

780. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

781. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

783. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

785. Saccharomyces is used in:

 
 
 
 

786. What is a vector?

 
 
 
 

787. Pasteurization of milk involves heating for:

 
 
 
 

788. The megaspore of Selaginella on germination produces:

 
 
 
 

789. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

791. Spermatophyta are characterized by producing:

 
 
 
 

792. Wine turns sour because of:

 
 
 
 

793. The smallest bacterium is:

 
 
 
 

794. Ginkgo biloba is a:

 
 
 
 

795. In moss, conducting tissue is made up of

 
 
 
 

796. Green plants are classified as:

 
 
 
 

797. Which of the following are included in Tracheophyta?

 
 
 
 

798. The chief characteristic of class Ascomycetes is:

 
 
 
 

799. Fruits are not found in:

 
 
 
 

800. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. Cycas is :

 
 
 
 

808. What is streptomycin?

 
 
 
 

809. Which have the largest antherozoid?

 
 
 
 

810. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

817. The similarity between cyanobacteria and bacteria:

 
 
 
 

818. LSD is:

 
 
 
 

819. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

821. Woody climbers are known as :

 
 
 
 

822. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

825. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839.

840. Synzoospore is produced in:

 
 
 
 

841. The mode of nutrition of bacteria is usually:

 
 
 
 

842. Isomorphic type alternation of generation is found in:

 
 
 
 

843. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

845. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

848. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

849. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

851. The spur of Pinus roxburghii has :

 
 
 
 

852. All algae have:

 
 
 
 

853. The lichens growing on rocks are called :

 
 
 
 

854. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

855. Gram stain is used to:

 
 
 
 

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

 
 
 
 

857. The male gametes of Pinus are :

 
 
 
 

858. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

861. The gametophyte of moss has distinct phases :

 
 
 
 

862. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

864. Saccharomyces ludwigii ascus produces: