Quiz_Random

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

9. Enteric bacteria are those bacteria that live:

 
 
 
 

10. Antibiotic has been extracted from :

 
 
 
 

11. Which of the following is true for Selaginella?

 
 
 
 

12. Endemic plants are characterised by their:

 
 
 
 

13. Cap cells are found in the filament of:

 
 
 
 

14. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

16. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

18. The two conjugating gametangia of Rhizopus are:

 
 
 
 

19. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

20. Which is a redwood tree?

 
 
 
 

21. Pteridophytes are also known as :

 
 
 
 

22. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

24. All protozoans possess:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Which of the following is a heterosporous pteridophyte?

 
 
 
 

28. Bacteria are placed under:

 
 
 
 

29. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

31.

 

32. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

34. Iodine is obtained from :

 
 
 
 

35. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

37. Choose the correct statement about Spirogyra:

 
 
 
 

38. Most of the algae are :

 
 
 
 

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

 
 
 
 

40. Which lichen is called Reindeer moss?

 
 
 
 

41. 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:

 
 
 
 

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

 
 
 
 

43. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

46. The source of litmus is :

 
 
 
 

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

 
 
 
 

48. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

50. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

55. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

57. In moss, sporophyte is formed on:

 
 
 
 

58. Lichens are ecologically important because :

 
 
 
 

59. Most primitive group of vascular plants are:

 
 
 
 

60. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

61. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Germination of the seed of Pinus is :

 
 
 
 

66. Which of the following statement is correct?

 
 
 
 

67. Chemosynthetic bacteria are:

 
 
 
 

68. Select the wrong statement:

 
 
 
 

69. Late blight of potato is caused by:

 
 
 
 

70. Which among the following is a shrub?

 
 
 
 

71. Club moss and Peat moss belong to:

 
 
 
 

72. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

77. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

79. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

81. Psilotum is:

 
 
 
 

82. Chemosynthetic bacteria are:

 
 
 
 

83. Which of the following is true for viruses?

 
 
 
 

84. Smallpox is caused by:

 
 
 
 

85. Aflatoxin is produced as a product in :

 
 
 
 

86. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

88. Sporophyte of fern is:

 
 
 
 

89. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

94. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

96. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. Who among the following discovered virus?

 
 
 
 

100. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

103. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

106. Vascular tissue is found in :

 
 
 
 

107. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

110. Mycoplasmas are not viruses in nature because:

 
 
 
 

111. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

113. 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?

 
 
 
 

114. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

117. Bivalved siliceous shell or frustule occur in:

 
 
 
 

118. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

121. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

123. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

126. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

129. Citrus canker is caused by:

 
 
 
 

130. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

132. 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?

 
 
 
 

133. Ovules are not found enclosed in ovary in :

 
 
 
 

134. Pollination in Cycas takes place by :

 
 
 
 

135. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

137. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

139. Quarantine regulations are concerned with:

 
 
 
 

140. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

141. Smut of maize is caused by :

 
 
 
 

142. Majority of lichens are :

 
 
 
 

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

 
 
 
 

144. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

146. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. The sporangia of Selaginella are attached:

 
 
 
 

150. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

151. How a fern differs from a moss?

 
 
 
 

152. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

155. The rhizoids of Funaria are :

 
 
 
 

156. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

158. Cycas revoluta is widely grown as :

 
 
 
 

159. Bacteria growing on synthetic medium are called:

 
 
 
 

160. The central part of Funaria axis is :

 
 
 
 

161. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

164. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

165. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. In moss, stomata are found:

 
 
 
 

169. Facultative parasite is:

 
 
 
 

170. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

175. What is absent in Deuteromycetes?

 
 
 
 

176.

177. Penicillin is obtained from:

 
 
 
 

178. Ergot of rye is caused by:

 
 
 
 

179. Which statement is wrong in regard to bacteria?

 
 
 
 

180. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

182. Banana bunchy top is caused by :

 
 
 
 

183. Tautonyms are illegitimate in:

 
 
 
 

184. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

186. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

191. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

193. Cocci types of bacteria are:

 
 
 
 

194. The coralloid roots are :

 
 
 
 

195. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

197. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

198. Pollination drop is:

 
 
 
 

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

 
 
 
 

200. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. Parmelia belongs to :

 
 
 
 

204. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

207. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

209. How is moss different from fern?

 
 
 
 

210. Red rot of sugarcane is caused by :

 
 
 
 

211. Methanogens belong to:

 
 
 
 

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

 
 
 
 

213. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

221. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

226. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

228. The lambda phase is a:

 
 
 
 

229. 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:

 
 
 
 

230. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

232. The nucleus of bacteria is:

 
 
 
 

233. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

235. Sleeping sickness disease in man is caused by:

 
 
 
 

236. Heterosporous pteridophytes always form:

 
 
 
 

237. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

239. Metulae are found in:

 
 
 
 

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

 
 
 
 

241. Club moss is the common name of :

 
 
 
 

242. Viruses are considered to be:

 
 
 
 

243. Black rust of wheat is caused by:

 
 
 
 

244. The gametophyte of fern is as:

 
 
 
 

245. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

247. An Hfr bacterium is one that contains:

 
 
 
 

248. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

251. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

253. The development of sporangium in Selaginella is:

 
 
 
 

254. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

258. Desired type of Cycas can be grown by:

 
 
 
 

259. Who discovered streptomycin?

 
 
 
 

260. The smallest bacterium is:

 
 
 
 

261. Streptomyces falls under:

 
 
 
 

262. The first to isolate a plant virus was:

 
 
 
 

263. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

265. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

268. The group algae possesses representatives belonging to kingdom:

 
 
 
 

269. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. Rhizophore of Selaginella is:

 
 
 
 

273. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

275. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

280. Redness of red sea is due to :

 
 
 
 

281. Isomorphic type alternation of generation is found in:

 
 
 
 

282. Lichens reproduce by :

 
 
 
 

283. In Cycas:

 
 
 
 

284. The gametophyte of fern bears:

 
 
 
 

285. Lichens reproduce by :

 
 
 
 

286. Green plants are classified as:

 
 
 
 

287. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

289. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

291. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

293. Embryophyta includes :

 
 
 
 

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

 
 
 
 

295. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

297. The ferns are usually found:

 
 
 
 

298. Fruits are not found in :

 
 
 
 

299. What is special feature of fern archegonia?

 
 
 
 

300. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

302. What are Cyanobacteria?

 
 
 
 

303. In Funaria :

 
 
 
 

304. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

308. Fern plants are:

 
 
 
 

309. Who discovered cyanophages?

 
 
 
 

310. Protozoans are considered animals because these are:

 
 
 
 

311. The tree fern is:

 
 
 
 

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

 
 
 
 

313. In moss, conducting tissue is made up of

 
 
 
 

314. Diphtheria is caused by:

 
 
 
 

315. Proembryo in Pinus is :

 
 
 
 

316. In binomial system most of the words are:

 
 
 
 

317. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

319. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

323. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

325. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

328. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

330. Which of the following is a parasitic algae?

 
 
 
 

331. Which of the following lichens is harmful?

 
 
 
 

332. The gametophyte produced by apospory is :

 
 
 
 

333. Synzoospore is produced in:

 
 
 
 

334. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

336. Multicellular and jacketed sex organs are found in :

 
 
 
 

337. Infective part of virus was discovered by:

 
 
 
 

338. In Selaginella, the microsporangia are:

 
 
 
 

339. In dinoflagellates, the two flagella are:

 
 
 
 

340. The leaves of Funaria are :

 
 
 
 

341. Which is the correct statement about Selaginella?

 
 
 
 

342. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

345. Chief constituents of bordeaux mixture are :

 
 
 
 

346. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

348. Most resistant spore in bacteria is:

 
 
 
 

349. Which fixes atmospheric nitrogen?

 
 
 
 

350. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

352. Which causes red tide?

 
 
 
 

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

 
 
 
 

354. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

356. The sporangium of fern contains nearly:

 
 
 
 

357. To which class Riccia belongs :

 
 
 
 

358. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

359. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

362. The largest known bacterium is:

 
 
 
 

363. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

365. Mucilaginous canals in Cycas are found in :

 
 
 
 

366. Botulinum toxin effects:

 
 
 
 

367. In a diplontic life cycle:

 
 
 
 

368. In Funaria, calyptra is derived from :

 
 
 
 

369. Viroids have:

 
 
 
 

370. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

373. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

376. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

382. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

384. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

386. In Cycas microsporangia are borne on:

 
 
 
 

387. Transfusion tissue is present in the leaflet of:

 
 
 
 

388. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

391. The sori in Dryopteris are found on:

 
 
 
 

392. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

395. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

399. Viruses have:

 
 
 
 

400. Selaginella differs from Moss in having:

 
 
 
 

401. The term stele was given by:

 
 
 
 

402. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

405. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

406. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

410. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

412. Polystelic condition is found in:

 
 
 
 

413. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

415. Heterocysts are found in :

 
 
 
 

416. Common phycobiont in a lichen is :

 
 
 
 

417. Ulothrix produces :

 
 
 
 

418. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

419. Seeds are characteristically found in:

 
 
 
 

420. The sporangiophores in Rhizopus are:

 
 
 
 

421. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Fairy ring is the name given to:

 
 
 
 

425. 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:

 
 
 
 

426. An alga which is rich in proteins:

 
 
 
 

427. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

430. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. Ginkgo biloba is a:

 
 
 
 

434. Which is not found in bacteria?

 
 
 
 

435. Lichen show :

 
 
 
 

436. The root nodules of leguminous plants contain:

 
 
 
 

437. Generic name of mango is:

 
 
 
 

438. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

441. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

445. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

447. Penicillin was discovered by:

 
 
 
 

448. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

449. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

451. Water-net is the name of:

 
 
 
 

452. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

454. Aflatoxin is produced by:

 
 
 
 

455. Roots are absent in :

 
 
 
 

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

 
 
 
 

457. Rhizopus belongs to:

 
 
 
 

458. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

461. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

463. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

468. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

470. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

472. Spirogyra represents the :

 
 
 
 

473. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

474. Maximum diversity of life forms occurs in :

 
 
 
 

475. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

481. Funaria is :

 
 
 
 

482. Which is an exception to cell theory?

 
 
 
 

483. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

485. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

489. Anoxygenic photosynthesis occurs in:

 
 
 
 

490. Cycas is different from mango in :

 
 
 
 

491. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

495. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

497. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

500. Mycoplasma was discovered by:

 
 
 
 

501. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

505. Which of the following statements is not correct?

 
 
 
 

506. Sexual reproduction of lichen is due to :

 
 
 
 

507. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

510. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

512. Embryo formation is not known in :

 
 
 
 

513. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

515. Typhoid in man is caused by:

 
 
 
 

516. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

518. The mycelium of Rhizopus is:

 
 
 
 

519. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

521. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

523. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

525. In moss, sporogenous tissue arises from:

 
 
 
 

526. Which class of Protozoa includes all parasitic forms?

 
 
 
 

527. Which of the following have algal zone?

 
 
 
 

528. Which is a fungicide?

 
 
 
 

529. In Gymnocarpeae the fruiting body is :

 
 
 
 

530. Interferon is a:

 
 
 
 

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

 
 
 
 

532. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

534. Bacteriophage consists of:

 
 
 
 

535. Ovules are not found enclosed in ovary of:

 
 
 
 

536. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

538. Which is an edible fungus?

 
 
 
 

539. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

541. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

543. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

546. In tracheophyta:

 
 
 
 

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

 
 
 
 

548. The archegonia in Selaginella develop on:

 
 
 
 

549. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

553. 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:

 
 
 
 

554. Azolla growing in paddy fields helps in:

 
 
 
 

555. The Rhizopus is:

 
 
 
 

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

 
 
 
 

557. 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:

 
 
 
 

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

 
 
 
 

559. 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?

 
 
 
 

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

 
 
 
 

561. The leafy fern plant represents the:

 
 
 
 

562. Which of the following does not contain chlorophyll?

 
 
 
 

563. Bacteria are considered to be plants because they:

 
 
 
 

564. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

566. Liverworts are included in :

 
 
 
 

567. The fern plant is:

 
 
 
 

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

 
 
 
 

569. Pneumonia is caused by:

 
 
 
 

570. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

575. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

577. Detailed study of bacteriophage was made by:

 
 
 
 

578. Each chloroplast in Spirogyra bears :

 
 
 
 

579. Which one of the following statement is wrong?

 
 
 
 

580. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

582. Cycas plant in appearance resembles :

 
 
 
 

583. Downy mildew disease is caused by :

 
 
 
 

584. The chromosomal number in:

 
 
 
 

585. Lichens show :

 
 
 
 

586. Acellular slime mold is/are:

 
 
 
 

587. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

589. The disease symptom necrosis refers to :

 
 
 
 

590. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

591. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. Absorptive nutrition is:

 
 
 
 

595. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

597. Rhizoids of Riccia are :

 
 
 
 

598. Broad spectrum antibiotic is, which:

 
 
 
 

599. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

601. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

605. What is a vector?

 
 
 
 

606. Meiosis in Ulothrix takes place:

 
 
 
 

607. Longest known virus is:

 
 
 
 

608. . Tapetum develops in:

 
 
 
 

609.

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

 
 
 
 

611. Reserve food in Euglena is:

 
 
 
 

612. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

615. Facultative saprophyte is:

 
 
 
 

616. The truncated cone of HIV consists of:

 
 
 
 

617. Funaria are commonly found :

 
 
 
 

618. The fungi used as food are:

 
 
 
 

619. The antherozoids of Funaria are :

 
 
 
 

620. Placenta in fern is:

 
 
 
 

621. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

624. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

626. Pythium debaryanum is the causative agent of:

 
 
 
 

627. 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?

 
 
 
 

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

 
 
 
 

629. Among the algae kelps are :

 
 
 
 

630. The plants of Funaria grow :

 
 
 
 

631. Who named prion?

 
 
 
 

632. Wine turns sour because of:

 
 
 
 

633. The prothallus of fern is:

 
 
 
 

634. Which group of algae have an incipient nucleus?

 
 
 
 

635. Vascular cryptogam is the term used for :

 
 
 
 

636. The vascular bundles of Cycas stem are :

 
 
 
 

637. Nitrogen-fixing bacteria may be located:

 
 
 
 

638. Nitrifying bacteria play an important role by converting:

 
 
 
 

639. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

641. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. Gymnosperms could also be called as:

 
 
 
 

645. Etiology includes the study of :

 
 
 
 

646. The largest alga is:

 
 
 
 

647.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

651. The sexual reproductive organs in Rhizopus are:

 
 
 
 

652. Halophiles are the bacteria that require for growth:

 
 
 
 

653. Funaria is a Bryophyta because :

 
 
 
 

654. All algae have:

 
 
 
 

655. Cellular slime mold is:

 
 
 
 

656. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

661. Fruiting body of lichens is :

 
 
 
 

662. Cycas is similar to a mustard plant :

 
 
 
 

663. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

667. Green plants are classified as :

 
 
 
 

668. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

671. Cyanophage is a virus that attacks:

 
 
 
 

672. The teeth of peristome of Funaria are :

 
 
 
 

673. Funaria can be differentiated from Cycas :

 
 
 
 

674. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

676. The leaf of Cycas shows:

 
 
 
 

677. The chief characteristic of class Ascomycetes is:

 
 
 
 

678. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

681. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

684. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

686. Circular DNA is seen in:

 
 
 
 

687. Cycas is :

 
 
 
 

688. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

690. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

693. In a bacteriophage, DNA is present in:

 
 
 
 

694. Which organisms are the oldest life forms?

 
 
 
 

695. Which is not true for Escherichia coli?

 
 
 
 

696. The gametophyte of moss has distinct phases :

 
 
 
 

697. Little leaf disease of Brinjal is caused by:

 
 
 
 

698. In moss, peristomial teeth are:

 
 
 
 

699. The spermatozoids of Cycas are :

 
 
 
 

700. Rhizopus and yeast are usually:

 
 
 
 

701. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

702. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

703. Pteridophyta are also called:

 
 
 
 

704. The fungi are usually:

 
 
 
 

705. The middle sterile part of capsule is called:

 
 
 
 

706. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

709. Bentham and Hooker placed gymnosperms:

 
 
 
 

710. Rice, pea, potato are :

 
 
 
 

711. Fruits are not found in:

 
 
 
 

712. Heterospory and ligulate leaves are a feature of:

 
 
 
 

713. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

715. Fern prothallus produces:

 
 
 
 

716. Select the wrong statement:

 
 
 
 

717. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

718. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

721. John Hutchinson divided dicots into two divisions:

 
 
 
 

722. Which of the following is sago palm?

 
 
 
 

723. Black rust of wheat is caused by:

 
 
 
 

724. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

727. Indusium in Dryopteris is:

 
 
 
 

728. Meristele of fern is:

 
 
 
 

729. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

731. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

733. Ovary is absent in:

 
 
 
 

734. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

736. Lichens form the first community in

 
 
 
 

737. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

739. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

741. Discovery of penicillin was based on:

 
 
 
 

742. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

744. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

746. Most primitive kind of flower is represented by:

 
 
 
 

747. Yeast belongs to class:

 
 
 
 

748. Ovary is absent in :

 
 
 
 

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

 
 
 
 

750. LSD is:

 
 
 
 

751. White rust of crucifers is caused by:

 
 
 
 

752. Red rot of sugarcane is caused by :

 
 
 
 

753. The mode of nutrition of bacteria is usually:

 
 
 
 

754. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

759. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

765. Pinus gerardiana is :

 
 
 
 

766. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

773. Bacteria were first discovered by:

 
 
 
 

774. The fungi that grow on wood are called:

 
 
 
 

775. Pythium debaryanum is the causative agent of:

 
 
 
 

776. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

778. Pasteur is famous for his:

 
 
 
 

779. Disease resistant plant varieties can be produced by :

 
 
 
 

780. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

783. Nannandria are:

 
 
 
 

784. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

786. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

789. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

794. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. Embryophyta includes:

 
 
 
 

798. The DNA of E coli is:

 
 
 
 

799. The seedless plants which possess vascular tissues are:

 
 
 
 

800. The Rhizopus gametes are formed in:

 
 
 
 

801. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. The tallest moss in the world is :

 
 
 
 

805. Diploxylic vascular bundles are found in:

 
 
 
 

806. Woody climbers are known as :

 
 
 
 

807. Some diseases caused by bacteria are:

 
 
 
 

808. Winged pollen grains are found in :

 
 
 
 

809. Agar-agar is obtained from:

 
 
 
 

810. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

816. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

818. The chief characteristic of bryophyta is that :

 
 
 
 

819. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

824. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

826. Cryptogams include :

 
 
 
 

827. Saccharomyces is well known for:

 
 
 
 

828. Clostridium can:

 
 
 
 

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

 
 
 
 

830. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

834. Pseudomycelium is found in:

 
 
 
 

835. In moss, calyptra is formed from:

 
 
 
 

836. Pollination in Pinus is :

 
 
 
 

837. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

842. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

844. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

846. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

847. Most primitive embryophytes are placed in :

 
 
 
 

848. The photosynthetic protists are:

 
 
 
 

849. Protists which are diploid reproduce sexually by:

 
 
 
 

850. Photoautotrophic bacteria have:

 
 
 
 

851. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

854. One of the distinctive feature of Spirogyra is :

 
 
 
 

855. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

857. The genetic material of poxvirus is:

 
 
 
 

858. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

860. Photosynthetic protists belong to:

 
 
 
 

861. What is the role of nitrifying bacteria?

 
 
 
 

862. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

864. The stele of Dryopteris is a: