Quiz_Random

1. Pinus microsporophyll bears:

 
 
 
 

2. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Linnaeus is credited with introducing:

 
 
 
 

6. Yeast is a source of:

 
 
 
 

7. Mixed cropping helps :

 
 
 
 

8. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

10. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

12. The microsporophylls on the cone of Cycas are :

 
 
 
 

13. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

15. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

16. In Pteris, the roots are:

 
 
 
 

17. In Funaria :

 
 
 
 

18.

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

 
 
 
 

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

 
 
 
 

21. The development of sporangium in Selaginella is:

 
 
 
 

22. Circular DNA is seen in:

 
 
 
 

23. The chief characteristic of class Ascomycetes is:

 
 
 
 

24. Water bloom is generally caused by :

 
 
 
 

25. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

30. Selaginella differs from Moss in having:

 
 
 
 

31. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

42. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

44. Genetic material of TMV is:

 
 
 
 

45. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

47. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

48. In moss, sporogenous tissue arises from:

 
 
 
 

49. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

58. Nitrifying bacteria play an important role by converting:

 
 
 
 

59. The smallest unit of classification is:

 
 
 
 

60. In moss, sporophyte is formed on:

 
 
 
 

61. Roots are absent in :

 
 
 
 

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

 
 
 
 

63. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

75.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

85. Protistan algae obtain their food as:

 
 
 
 

86. Cycas revoluta is widely grown as :

 
 
 
 

87. Indusium in Dryopteris is:

 
 
 
 

88. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

90. The zygospore in Rhizopus on germination forms:

 
 
 
 

91. Bentham and Hooker placed gymnosperms:

 
 
 
 

92. Lichens reproduce by :

 
 
 
 

93. In Cycas:

 
 
 
 

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

 
 
 
 

95. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

100. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

103. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

105. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

108. Siphonogamy is found in:

 
 
 
 

109. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

111. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

113. The archegonia of Selaginella are differentiated by:

 
 
 
 

114. Chemosynthetic bacteria are:

 
 
 
 

115. Spermatophyta are characterized by producing:

 
 
 
 

116. Saccharomyces is well known for:

 
 
 
 

117. 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:

 
 
 
 

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

 
 
 
 

119. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

124. The sporangium of fern contains nearly:

 
 
 
 

125. 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:

 
 
 
 

126. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

129. All algae have:

 
 
 
 

130. Pteridophytes are also known as :

 
 
 
 

131. Enteric bacteria are those bacteria that live:

 
 
 
 

132. Redness of red sea is due to :

 
 
 
 

133. Rhizopus belongs to:

 
 
 
 

134. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

137. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

138. Where does meiosis occur in yeast?

 
 
 
 

139. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

141. In Selaginella, the microsporangia are:

 
 
 
 

142. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

144. The most primitive vascular plants is:

 
 
 
 

145. Select the correct statement: (NEET 2016)

 
 
 
 

146. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. In tracheophyta:

 
 
 
 

150. Funaria is :

 
 
 
 

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

 
 
 
 

152. What are plasmids?

 
 
 
 

153. Spermatophyta are characterized by producing:

 
 
 
 

154. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

156. Acellular slime mold is/are:

 
 
 
 

157. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

159. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. Which is a fungicide?

 
 
 
 

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

 
 
 
 

164. Bacteria are considered to be plants because they:

 
 
 
 

165. Diphtheria is caused by:

 
 
 
 

166. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

170. Banana bunchy top is caused by :

 
 
 
 

171. Discovery of penicillin was based on:

 
 
 
 

172. In Pteris, the archegonia are present:

 
 
 
 

173. Mostly type of zygospore in Ulothrix is:

 
 
 
 

174. Some biologists have used the term Mycetozoa for:

 
 
 
 

175. Fern plants are:

 
 
 
 

176. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

178. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

180. The source of litmus is :

 
 
 
 

181. Which of the following are included in Tracheophyta?

 
 
 
 

182. Total parasites belong to:

 
 
 
 

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

 
 
 
 

184. Viruses have:

 
 
 
 

185. Acetobacter is useful in:

 
 
 
 

186. Sexual reproduction in Rhizopus is by:

 
 
 
 

187. The chief characteristic of bryophyta is that :

 
 
 
 

188. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

193. Vegetative reproduction in Cycas is by means of :

 
 
 
 

194. Cleavage polyembryony is found in :

 
 
 
 

195. The leafy fern plant represents the:

 
 
 
 

196. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

198. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

201. The plants of Funaria grow :

 
 
 
 

202. The megasporangium of Selaginella is:

 
 
 
 

203. The gametophyte of fern bears:

 
 
 
 

204. Which part of Riccia bears nurse cells?

 
 
 
 

205. What is mycorrhiza?

 
 
 
 

206. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

208. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

212. Reproduction in Rhizopus is:

 
 
 
 

213. Halophiles are the bacteria that require for growth:

 
 
 
 

214. In a bacteriophage, DNA is present in:

 
 
 
 

215. The spermatozoids of Cycas are :

 
 
 
 

216. The fungi that grow on wood are called:

 
 
 
 

217. Lichens show :

 
 
 
 

218. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. Rhizophore of Selaginella is:

 
 
 
 

226. Ovary is absent in:

 
 
 
 

227. Botulinum toxin effects:

 
 
 
 

228. In moss, calyptra is formed from:

 
 
 
 

229. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

230. The sori in Dryopteris are found on:

 
 
 
 

231. Ovary is absent in :

 
 
 
 

232. Pythium debaryanum is the causative agent of:

 
 
 
 

233. Which is an exception to cell theory?

 
 
 
 

234. Plasmids are:

 
 
 
 

235. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

237. Which of the following are absent in Mycoplasma?

 
 
 
 

238. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

240. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

242. Oswald Tippo’s classification was based on :

 
 
 
 

243. Select the wrong statement:

 
 
 
 

244. Mycoplasma contains:

 
 
 
 

245. Funaria is :

 
 
 
 

246. The mode of nutrition of bacteria is usually:

 
 
 
 

247. Who named prion?

 
 
 
 

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

 
 
 
 

249. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

251. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. The lichens growing on rocks are called :

 
 
 
 

256. Downy mildew disease is caused by :

 
 
 
 

257. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

258. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

260. Which organisms are the oldest life forms?

 
 
 
 

261. Each chloroplast in Spirogyra bears :

 
 
 
 

262. Facultative saprophyte is:

 
 
 
 

263. The sporangia of Selaginella are attached:

 
 
 
 

264. The ferns are usually found:

 
 
 
 

265. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

268. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

271. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

277. Which one of the following is a monocot?

 
 
 
 

278. Ginkgo biloba is a:

 
 
 
 

279. Lichens are ecologically important because :

 
 
 
 

280. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

285. Bryophyta have been placed in cryptogams because:

 
 
 
 

286. How is moss different from fern?

 
 
 
 

287. Cycas is :

 
 
 
 

288. Bacteria differ from viruses in being sensitive to:

 
 
 
 

289. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

292. The photosynthetic protists are:

 
 
 
 

293. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

295. The phloem of vascular system of Cycas is :

 
 
 
 

296. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

301. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

303. Heterotrichous habit means :

 
 
 
 

304. Photosynthetic bacteria have:

 
 
 
 

305. Bacteria which are spherical are called:

 
 
 
 

306. The DNA of E coli is:

 
 
 
 

307. Mycoplasmas are not viruses in nature because:

 
 
 
 

308. Synzoospore is produced in:

 
 
 
 

309. Fruits are not found in:

 
 
 
 

310. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

312. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. Who discovered cyanophages?

 
 
 
 

316. Green plants are classified as:

 
 
 
 

317. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

319. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

321. Parmelia belongs to :

 
 
 
 

322. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

330. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

332. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

334. Aflatoxin is produced by:

 
 
 
 

335. 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:

 
 
 
 

336. 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?

 
 
 
 

337. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

339. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

341. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

343. Most of the algae are :

 
 
 
 

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

 
 
 
 

345. Some diseases caused by bacteria are:

 
 
 
 

346. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

348. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

351. The largest known bacterium is:

 
 
 
 

352. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. Transfusion tissue is present in the leaflet of:

 
 
 
 

356. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

360. The group algae possesses representatives belonging to kingdom:

 
 
 
 

361. Typhoid in man is caused by:

 
 
 
 

362. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

364. The similarity between cyanobacteria and bacteria:

 
 
 
 

365. Meiosis in Ulothrix takes place:

 
 
 
 

366. Cellular slime mold is:

 
 
 
 

367. In moss, stomata are found:

 
 
 
 

368. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

372. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

375. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. Isomorphic type alternation of generation is found in:

 
 
 
 

379. Economic importance of bacteria lies in their being:

 
 
 
 

380. The tallest moss in the world is :

 
 
 
 

381. Botulism is a:

 
 
 
 

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

 
 
 
 

383. Usually, bacteria reproduce by:

 
 
 
 

384. Vascular cryptogams is the term used for:

 
 
 
 

385. Facultative parasite is:

 
 
 
 

386. Iodine is obtained from :

 
 
 
 

387. The rhizoids of Funaria are :

 
 
 
 

388. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

393.

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

 
 
 
 

395. Which of the following is a monocot?

 
 
 
 

396. Male gametes in Dryopteris are:

 
 
 
 

397. Which is not found in bacteria?

 
 
 
 

398. Spores of which plants have chloroplast:

 
 
 
 

399. Which is absent from the xylem of Cycas?

 
 
 
 

400. Viroids have:

 
 
 
 

401. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

403. In Funaria, calyptra is derived from :

 
 
 
 

404. Zoogametes are not found in:

 
 
 
 

405. What is special feature of fern archegonia?

 
 
 
 

406. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

408. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

410. Smallpox is caused by:

 
 
 
 

411. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

418. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. Germ theory of disease was proposed by:

 
 
 
 

424. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

428. Spirogyra represents the :

 
 
 
 

429. Ergot of rye is caused by:

 
 
 
 

430. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

432. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

434. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

436. Iodine is obtained from:

 
 
 
 

437. 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:

 
 
 
 

438. The term stele was given by:

 
 
 
 

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

 
 
 
 

440. Which of the following shows heterotrichous habit?

 
 
 
 

441. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

444. The flagella of Chlamydomonas are:

 
 
 
 

445. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

447. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

449. Small epidermal swellings due to infection are called :

 
 
 
 

450. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

452. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

454. Cryptogams include :

 
 
 
 

455. Smut of maize is caused by :

 
 
 
 

456. Generic name of mango is:

 
 
 
 

457. Vascular tissue is found in :

 
 
 
 

458. Which one of the following statement is wrong?

 
 
 
 

459. Mycoplasma are:

 
 
 
 

460. Clostridium can:

 
 
 
 

461. The sporangiophores in Rhizopus are:

 
 
 
 

462. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

464. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

466. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

468. Rhizoids of Riccia are :

 
 
 
 

469. Pollination in Cycas takes place by :

 
 
 
 

470. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

472. Water-net is the name of:

 
 
 
 

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

 
 
 
 

474. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

480. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

482. Detailed study of bacteriophage was made by:

 
 
 
 

483. Yeast grows more rapidly in:

 
 
 
 

484. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

486. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

491. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

493. Which of the following does not contain chlorophyll?

 
 
 
 

494. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

496. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

498. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

501. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

502. Mycoplasma was discovered by:

 
 
 
 

503. Early blight of potato is caused by:

 
 
 
 

504. Maximum diversity of life forms occurs in :

 
 
 
 

505. Cycas plant in appearance resembles :

 
 
 
 

506. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

508. The fungi used as food are:

 
 
 
 

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

 
 
 
 

510. The fern plant is:

 
 
 
 

511. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

516. Pasteurization of milk involves heating for:

 
 
 
 

517. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

519. What is absent in Deuteromycetes?

 
 
 
 

520. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

522. The most important property of yeast is:

 
 
 
 

523. The largest alga is:

 
 
 
 

524. Chemosynthetic bacteria are:

 
 
 
 

525. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

527. The smallest bacterium is:

 
 
 
 

528. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

530. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

532. Most common type of conjugation in Spirogyra is :

 
 
 
 

533. The lambda phase is a:

 
 
 
 

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

 
 
 
 

535. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

538. The fungi are mostly:

 
 
 
 

539. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

541. Which bacteria convert nitrate into nitrogen?

 
 
 
 

542. Meristele of fern is:

 
 
 
 

543. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

547. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

552. In angiosperms double fertilization represents:

 
 
 
 

553. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

556. Most primitive embryophytes are placed in:

 
 
 
 

557. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

559. Embryophyta includes:

 
 
 
 

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

 
 
 
 

561. The chromosomal number in:

 
 
 
 

562. 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:

 
 
 
 

563. 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?

 
 
 
 

564. Simple polyembryony is found in :

 
 
 
 

565. The chloroplast in Ulothrix is :

 
 
 
 

566. Coenogamete is found in:

 
 
 
 

567. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

569. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

571. E coli is a:

 
 
 
 

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

 
 
 
 

573. Etiology includes the study of :

 
 
 
 

574. Penicillin is obtained from:

 
 
 
 

575. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

579. Which is a gametophytic tissue?

 
 
 
 

580. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

582. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

584. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

586. Among the algae kelps are :

 
 
 
 

587. Cyathia is characterized by:

 
 
 
 

588. The prothallus of fern is:

 
 
 
 

589. The seedless plants which possess vascular tissues are:

 
 
 
 

590. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

592. The Rhizopus is:

 
 
 
 

593. The genetic material of poxvirus is:

 
 
 
 

594. Cycas is:

 
 
 
 

595. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

597. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

599. Tautonyms are illegitimate in:

 
 
 
 

600. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

602. Saccharomyces ludwigii ascus produces:

 
 
 
 

603. Sporophyte of fern is:

 
 
 
 

604. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

606. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

608. Asexual reproductive body of Volvox is called:

 
 
 
 

609. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

611. The disease symptom necrosis refers to :

 
 
 
 

612. Aflatoxin is produced as a product in :

 
 
 
 

613. First animal pathogenic virus was discovered by:

 
 
 
 

614. Azolla growing in paddy fields helps in:

 
 
 
 

615. The coralloid roots are :

 
 
 
 

616. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. The young leaves of Cycas have :

 
 
 
 

620. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

623. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

625. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

627. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

629. Which of the following is true for viruses?

 
 
 
 

630. Lichens form the first community in

 
 
 
 

631. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. Fruits are not found in :

 
 
 
 

637. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

639. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

642. Green plants are classified as :

 
 
 
 

643. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

646. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

648. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

651. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

655. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. Which is a tautonym?

 
 
 
 

659. Protozoans are considered animals because these are:

 
 
 
 

660. The middle sterile part of capsule is called:

 
 
 
 

661. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

665. Which of the following is true for Selaginella?

 
 
 
 

666. Winged pollen grains are found in :

 
 
 
 

667. Which of the following statements is not correct?

 
 
 
 

668. Embryophyta includes :

 
 
 
 

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

 
 
 
 

670. In a diplontic life cycle:

 
 
 
 

671. Psilotum is:

 
 
 
 

672. Centric discoid form of diatom is:

 
 
 
 

673. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

674. An Hfr bacterium is one that contains:

 
 
 
 

675. In Gymnosperms endosperm is a:

 
 
 
 

676. Heterocysts are found in :

 
 
 
 

677. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

680. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

682. Antibiotic has been extracted from :

 
 
 
 

683. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

685. Heterosporous pteridophytes always form:

 
 
 
 

686. In Cycas the fertilization is:

 
 
 
 

687. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

690. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

692. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

694. The leaves of Funaria are :

 
 
 
 

695. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

699. Mycoplasma are sensitive to:

 
 
 
 

700. One of the distinctive feature of Spirogyra is :

 
 
 
 

701. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

703. Bacteriophage consists of:

 
 
 
 

704. Which causes red tide?

 
 
 
 

705. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

707. Germination of the seed of Pinus is :

 
 
 
 

708. Bacteria growing on synthetic medium are called:

 
 
 
 

709. The fungi are usually:

 
 
 
 

710. LSD is:

 
 
 
 

711. All archaebacteria lack:

 
 
 
 

712. Most resistant spore in bacteria is:

 
 
 
 

713. White rust of crucifers is caused by:

 
 
 
 

714. Liverworts are included in :

 
 
 
 

715. 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?

 
 
 
 

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

 
 
 
 

717. Fruiting body of lichens is :

 
 
 
 

718. Fern prothallus is:

 
 
 
 

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

 
 
 
 

720. Pythium debaryanum is the causative agent of:

 
 
 
 

721. What is the role of nitrifying bacteria?

 
 
 
 

722. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

724. Standard size of a herbarium sheet is:

 
 
 
 

725. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

727. Red rot of sugarcane is caused by :

 
 
 
 

728. Gametophyte is the main plant body in :

 
 
 
 

729. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

731. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

733. NBG of Lucknow is now named as:

 
 
 
 

734. 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:

 
 
 
 

735. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. Little leaf disease of Brinjal is caused by:

 
 
 
 

739. Yeast belongs to class:

 
 
 
 

740. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

743. Viruses are commonly transmitted in plants through:

 
 
 
 

744. Gram stain is used to:

 
 
 
 

745. The leaf of Cycas shows:

 
 
 
 

746. Leprosy is caused by:

 
 
 
 

747. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

749. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

751. TMV was isolated in crystalline form by:

 
 
 
 

752.

 

753. Helotism word is used for the symbiosis between :

 
 
 
 

754. The gametophyte of moss has distinct phases :

 
 
 
 

755. 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:

 
 
 
 

756. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

759. Who discovered streptomycin?

 
 
 
 

760. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

762. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

764. Which group of algae have an incipient nucleus?

 
 
 
 

765. Virion refers to:

 
 
 
 

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

 
 
 
 

767. Virus and bacteriophage are made-up of:

 
 
 
 

768. Fruits are not found in Cycas because:

 
 
 
 

769. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

771. Streptomycin is obtained from:

 
 
 
 

772. Absorptive nutrition is:

 
 
 
 

773. In Herpes virus DNA is:

 
 
 
 

774. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

776. Which is the nuclear material in bacteria?

 
 
 
 

777. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

780. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

782. Which class of Protozoa includes all parasitic forms?

 
 
 
 

783. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

785. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

787. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

789. Which is a redwood tree?

 
 
 
 

790. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

793. The order generally ends with:

 
 
 
 

794. Protists which are diploid reproduce sexually by:

 
 
 
 

795. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

798. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

801. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. Water-borne bacterial diseases are:

 
 
 
 

808. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

812. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. Lichens reproduce by :

 
 
 
 

816. Pollination drop is:

 
 
 
 

817. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

819. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

822. The ascus of yeast contains:

 
 
 
 

823. Which of the following have algal zone?

 
 
 
 

824. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

826. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

831. Which of the following lichens is harmful?

 
 
 
 

832. Ovules are not found enclosed in ovary of:

 
 
 
 

833. The development of Selaginella embryo is:

 
 
 
 

834. In Gymnocarpeae the fruiting body is :

 
 
 
 

835. To which country Antony van Leeuwenhoek belong?

 
 
 
 

836. The antibiotic is obtained from:

 
 
 
 

837. Red rot of sugarcane is caused by:

 
 
 
 

838. Select the wrong statement:

 
 
 
 

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

 
 
 
 

840. Kuru, a human disease is caused by:

 
 
 
 

841. What are Cyanobacteria?

 
 
 
 

842. Nitrogen-fixing bacteria may be located:

 
 
 
 

843. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

845. Majority of lichens are :

 
 
 
 

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

 
 
 
 

847. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

848. Reproduction in Cycas takes place by :

 
 
 
 

849. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

852. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

856. Ethylene oxide is widely used to:

 
 
 
 

857. Pteridophyta are also called:

 
 
 
 

858. All protozoans possess:

 
 
 
 

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

 
 
 
 

860. Fern phloem lacks:

 
 
 
 

861. The gametophyte produced by apospory is :

 
 
 
 

862. Cycas is different from mango in :

 
 
 
 

863. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

864. Placenta in fern is: