Quiz_Random

1. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

3. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

5. The largest alga is:

 
 
 
 

6. Ginkgo biloba is a:

 
 
 
 

7. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

9. The chromosomal number in:

 
 
 
 

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

 
 
 
 

11. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

12. Gymnosperms could also be called as:

 
 
 
 

13. Funaria are commonly found :

 
 
 
 

14. The spermatozoids of Cycas are :

 
 
 
 

15. Halophiles are the bacteria that require for growth:

 
 
 
 

16. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

19. Green plants are classified as :

 
 
 
 

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

 
 
 
 

21. Interferon is a:

 
 
 
 

22. Ovules are not found enclosed in ovary in :

 
 
 
 

23. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

28. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

30. The smallest unit of classification is:

 
 
 
 

31. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

33. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Protozoans are considered animals because these are:

 
 
 
 

41. The order generally ends with:

 
 
 
 

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

 
 
 
 

43. Most primitive embryophytes are placed in :

 
 
 
 

44. Fern plants are:

 
 
 
 

45. Streptomycin is obtained from:

 
 
 
 

46. Which of the following does not contain chlorophyll?

 
 
 
 

47. The ascus of yeast contains:

 
 
 
 

48. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Virus and bacteriophage are made-up of:

 
 
 
 

59. Mucilaginous canals in Cycas are found in :

 
 
 
 

60. Linnaeus is credited with introducing:

 
 
 
 

61. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

62. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

63. Green plants are classified as:

 
 
 
 

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

 
 
 
 

65. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

67. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. The sexual reproductive organs in Rhizopus are:

 
 
 
 

71. Pollination in Pinus is :

 
 
 
 

72. Infective part of virus was discovered by:

 
 
 
 

73. Which of the following are included in Tracheophyta?

 
 
 
 

74. Cyathia is characterized by:

 
 
 
 

75. Which among the following is a shrub?

 
 
 
 

76. 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?

 
 
 
 

77. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

79. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

81. Sexual reproduction of lichen is due to :

 
 
 
 

82. Most primitive group of vascular plants are:

 
 
 
 

83. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. Saccharomyces is used in:

 
 
 
 

87. Rhizopus belongs to:

 
 
 
 

88.

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

 
 
 
 

90. Which one of the following is a monocot?

 
 
 
 

91. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

92. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Soil fertility is lost by the activities of:

 
 
 
 

96. What is streptomycin?

 
 
 
 

97. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

99. Which of the following is true for viruses?

 
 
 
 

100. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

102. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

104. The mycelium of Rhizopus is:

 
 
 
 

105. Black rust of wheat is caused by:

 
 
 
 

106. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

111. 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:

 
 
 
 

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

 
 
 
 

113. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

121. LSD is:

 
 
 
 

122. The two conjugating gametangia of Rhizopus are:

 
 
 
 

123. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

126. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

128. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

131. The source of litmus is :

 
 
 
 

132. Endemic plants are characterised by their:

 
 
 
 

133. Which of the following lichens is harmful?

 
 
 
 

134. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

137. Fruits are not found in:

 
 
 
 

138. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

140. Lichen show :

 
 
 
 

141. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

143. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

146. Majority of lichens are :

 
 
 
 

147. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

150. The fungi are usually:

 
 
 
 

151. Nannandria are:

 
 
 
 

152. Ovary is absent in:

 
 
 
 

153. Viruses have:

 
 
 
 

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

 
 
 
 

155. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

157. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

159. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

164. The chloroplast in Ulothrix is :

 
 
 
 

165. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

167. 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?

 
 
 
 

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

 
 
 
 

169. The DNA of E coli is:

 
 
 
 

170. Botulinum toxin effects:

 
 
 
 

171. The fungi are mostly:

 
 
 
 

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

 
 
 
 

173. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

180. The archegonia in Selaginella develop on:

 
 
 
 

181. Late blight of potato is caused by :

 
 
 
 

182. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

184. Which have the largest antherozoid?

 
 
 
 

185. Most appropriate word for protozoans is:

 
 
 
 

186. The role of meiosis is for:

 
 
 
 

187. The disease apple scab is caused by:

 
 
 
 

188. Mycoplasmas are not viruses in nature because:

 
 
 
 

189. Bacteria are placed under:

 
 
 
 

190. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

193. Spermatophyta are characterized by producing:

 
 
 
 

194. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

198. The chief characteristic of bryophyta is that :

 
 
 
 

199. What is mycorrhiza?

 
 
 
 

200. Which of the following is a heterosporous pteridophyte?

 
 
 
 

201. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

203. The fungi used as food are:

 
 
 
 

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

 
 
 
 

205. In tracheophyta:

 
 
 
 

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

 
 
 
 

207. Iodine is obtained from:

 
 
 
 

208. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

210. Pteridophyta are also called:

 
 
 
 

211. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

213. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

215. Discovery of penicillin was based on:

 
 
 
 

216. Ectocarpus produces:

 
 
 
 

217. Which is absent from the xylem of Cycas?

 
 
 
 

218. Centric discoid form of diatom is:

 
 
 
 

219. The male gametes of Pinus are :

 
 
 
 

220. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

222. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

224. The microsporophylls on the cone of Cycas are :

 
 
 
 

225. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

227. How is moss different from fern?

 
 
 
 

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

 
 
 
 

229. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

231. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

233. Bacteria are considered to be plants because they:

 
 
 
 

234. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

236. Reserve food in Euglena is:

 
 
 
 

237. Chemosynthetic bacteria are:

 
 
 
 

238. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

241. The archegonia of Selaginella are differentiated by:

 
 
 
 

242. Redness of red sea is due to :

 
 
 
 

243. Coenogamete is found in:

 
 
 
 

244. Reproduction in Cycas takes place by :

 
 
 
 

245. Metulae are found in:

 
 
 
 

246. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

251. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

253. Pasteurized milk is:

 
 
 
 

254. The disease symptom necrosis refers to :

 
 
 
 

255. Pasteurization of milk involves heating for:

 
 
 
 

256. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

257. The sporophyte of Riccia is :

 
 
 
 

258. Botulism is a:

 
 
 
 

259. Reproduction in Rhizopus is:

 
 
 
 

260. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. Which is a redwood tree?

 
 
 
 

264. Sleeping sickness disease in man is caused by:

 
 
 
 

265. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

269. The fungi that grow on wood are called:

 
 
 
 

270. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

272.

 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

279. Yeast grows more rapidly in:

 
 
 
 

280. Lichens are ecologically important because :

 
 
 
 

281. Most of the algae are :

 
 
 
 

282. Economic importance of bacteria lies in their being:

 
 
 
 

283. Small epidermal swellings due to infection are called :

 
 
 
 

284. Methanogens belong to:

 
 
 
 

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

 
 
 
 

286. Which of the following are included in Tracheophyta?

 
 
 
 

287. Cycas is :

 
 
 
 

288. The term stele was given by:

 
 
 
 

289. Ovary is absent in :

 
 
 
 

290. Germination of the seed of Pinus is :

 
 
 
 

291. Simple polyembryony is found in :

 
 
 
 

292. Sexual reproduction in Rhizopus is by:

 
 
 
 

293. Some bacteria cannot be killed easily because of:

 
 
 
 

294. The leaves of Funaria are :

 
 
 
 

295. All archaebacteria lack:

 
 
 
 

296. The first to isolate a plant virus was:

 
 
 
 

297. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

299. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

301. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

303. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

305. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

310. 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?

 
 
 
 

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

 
 
 
 

312. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

314. One of the distinctive feature of Spirogyra is :

 
 
 
 

315. Where does meiosis occur in yeast?

 
 
 
 

316. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

318. Bacteria were first discovered by:

 
 
 
 

319. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

321. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

323. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

325. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

326. 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?

 
 
 
 

327. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

329. Lichens are the indicator of pollution :

 
 
 
 

330. Ovules are not found enclosed in ovary of:

 
 
 
 

331. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

333. Vascular cryptogam is the term used for :

 
 
 
 

334. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

336. Kuru, a human disease is caused by:

 
 
 
 

337. Funaria is :

 
 
 
 

338. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

340. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

342. Who named prion?

 
 
 
 

343. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

345. Rhizophore of Selaginella is:

 
 
 
 

346.

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

 
 
 
 

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

 
 
 
 

349. Usually, bacteria reproduce by:

 
 
 
 

350. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

352. The megaspore of Selaginella on germination produces:

 
 
 
 

353. Lichens form the first community in

 
 
 
 

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

 
 
 
 

355. Banana bunchy top is caused by :

 
 
 
 

356. Oswald Tippo’s classification was based on :

 
 
 
 

357. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. The development of sporangium in Selaginella is:

 
 
 
 

362. The gametophyte produced by apospory is :

 
 
 
 

363. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

365. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

367. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

370. Club moss is the common name of :

 
 
 
 

371. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

372. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

375. Pinus microsporophyll bears:

 
 
 
 

376. The root nodules of leguminous plants contain:

 
 
 
 

377. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

383. Meristele of fern is:

 
 
 
 

384. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

386. Heterocysts are found in :

 
 
 
 

387. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

389. In Pteris, the roots are:

 
 
 
 

390. In Cycas the fertilization is:

 
 
 
 

391. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

394. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

396. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

399. Aflatoxin is produced by:

 
 
 
 

400. Pollination drop is:

 
 
 
 

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

 
 
 
 

402. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

405. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

411. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

413. John Hutchinson divided dicots into two divisions:

 
 
 
 

414. The coralloid roots are :

 
 
 
 

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

 
 
 
 

416. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

419. Psilotum is:

 
 
 
 

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

 
 
 
 

421. Antibiotic has been extracted from :

 
 
 
 

422. Viroids have:

 
 
 
 

423. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

428. Each chloroplast in Spirogyra bears :

 
 
 
 

429. White rust of crucifers is caused by:

 
 
 
 

430. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

432. The prothallus of fern represents the plant:

 
 
 
 

433. Fern phloem lacks:

 
 
 
 

434. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. Which of the following is true for Selaginella?

 
 
 
 

438. Desired type of Cycas can be grown by:

 
 
 
 

439. Saccharomyces is well known for:

 
 
 
 

440. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

442. Mycoplasma are sensitive to:

 
 
 
 

443. In moss, peristomial teeth are:

 
 
 
 

444. Photoautotrophic bacteria have:

 
 
 
 

445. Ethylene oxide is widely used to:

 
 
 
 

446. To which country Antony van Leeuwenhoek belong?

 
 
 
 

447. Smallpox is caused by:

 
 
 
 

448. NBG of Lucknow is now named as:

 
 
 
 

449. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

451. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

456. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

458. Which of the following have algal zone?

 
 
 
 

459. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

461. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

464. The upper region of moss capsule is :

 
 
 
 

465. Which of the following statements is not correct?

 
 
 
 

466. In angiosperms double fertilization represents:

 
 
 
 

467. The truncated cone of HIV consists of:

 
 
 
 

468. Bentham and Hooker placed gymnosperms:

 
 
 
 

469. Fruiting body of lichens is :

 
 
 
 

470. Most resistant spore in bacteria is:

 
 
 
 

471. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

473. The Rhizopus gametes are formed in:

 
 
 
 

474. Azolla growing in paddy fields helps in:

 
 
 
 

475. The sporangiophores in Rhizopus are:

 
 
 
 

476. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

478. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

480. Siphonogamy is found in:

 
 
 
 

481. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. 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:

 
 
 
 

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

 
 
 
 

487. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

491. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

493. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

496. Cyanophage is a virus that attacks:

 
 
 
 

497. Heterospory is the production of:

 
 
 
 

498. Total parasites belong to:

 
 
 
 

499. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

502. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

505. Vascular cryptogams is the term used for:

 
 
 
 

506. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

509. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

511. To which class Riccia belongs :

 
 
 
 

512. Roots are absent in :

 
 
 
 

513. The development of Selaginella embryo is:

 
 
 
 

514. Acetobacter is useful in:

 
 
 
 

515. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

523. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

526. In a bacteriophage, DNA is present in:

 
 
 
 

527. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

529. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

534. Facultative parasite is:

 
 
 
 

535. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

537. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

539. The genetic material of poxvirus is:

 
 
 
 

540. Funaria is :

 
 
 
 

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

 
 
 
 

542. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

544. The antherozoids of Funaria are :

 
 
 
 

545. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

546. Bacteria differ from viruses in being sensitive to:

 
 
 
 

547. Detailed study of bacteriophage was made by:

 
 
 
 

548. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

550. Which of the following statement is correct?

 
 
 
 

551. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

555. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

557. Spirogyra differs from moss protonema in having :

 
 
 
 

558. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

559. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

561. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

563. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

565. Fruits are not found in Cycas because:

 
 
 
 

566. The plants of Funaria grow :

 
 
 
 

567. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

571. Triple antigen injection or vaccine are for:

 
 
 
 

572. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

574. Black rust of wheat is caused by:

 
 
 
 

575. Ulothrix produces :

 
 
 
 

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

 
 
 
 

577. Who among the following discovered virus?

 
 
 
 

578. Bivalved siliceous shell or frustule occur in:

 
 
 
 

579.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

583. In Cycas:

 
 
 
 

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

 
 
 
 

585. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

587. Yeast belongs to class:

 
 
 
 

588. Enteric bacteria are those bacteria that live:

 
 
 
 

589. In Gymnosperms endosperm is a:

 
 
 
 

590. Climbers are found in genus:

 
 
 
 

591. Most primitive kind of flower is represented by:

 
 
 
 

592. Which lichen is called Reindeer moss?

 
 
 
 

593. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

595. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

597. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

599. Bacteriophages have been used as:

 
 
 
 

600. Which is not true for Escherichia coli?

 
 
 
 

601. Vegetative reproduction in Cycas is by means of :

 
 
 
 

602. Fern prothallus produces:

 
 
 
 

603. Which part of Riccia bears nurse cells?

 
 
 
 

604. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

606. Enzymes are absent in:

 
 
 
 

607. In moss, reduction division occurs in :

 
 
 
 

608. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

610. The fern plant is:

 
 
 
 

611. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

614. Spores of which plants have chloroplast:

 
 
 
 

615. Multicellular and jacketed sex organs are found in :

 
 
 
 

616. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. Mostly type of zygospore in Ulothrix is:

 
 
 
 

620. Agar-agar is obtained from:

 
 
 
 

621. The tree fern is:

 
 
 
 

622. In a diplontic life cycle:

 
 
 
 

623. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

626. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

628. Bryophyta have a special character from other plants:

 
 
 
 

629. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

632. Fairy ring is the name given to:

 
 
 
 

633. The antibiotic is obtained from:

 
 
 
 

634. The orders generally have the uniform endings:

 
 
 
 

635. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

637. Select the wrong statement:

 
 
 
 

638. Bacteria which are spherical are called:

 
 
 
 

639. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

642. Azolla and Salvinia both are:

 
 
 
 

643. Longest known virus is:

 
 
 
 

644. 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:

 
 
 
 

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

 
 
 
 

646. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

648. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

650. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

651. Selaginella differs from Moss in having:

 
 
 
 

652. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

654. Photosynthetic protists belong to:

 
 
 
 

655. Water-borne bacterial diseases are:

 
 
 
 

656. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

658. The middle sterile part of capsule is called:

 
 
 
 

659. Diphtheria is caused by:

 
 
 
 

660. Heterosporous pteridophytes always form:

 
 
 
 

661. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

664. Heterospory and ligulate leaves are a feature of:

 
 
 
 

665. Cycas is:

 
 
 
 

666. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

668. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

671. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

673. The sporangium of fern contains nearly:

 
 
 
 

674. Cellular slime mold is:

 
 
 
 

675. Gram stain is used to:

 
 
 
 

676. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

678. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

680. Zoogametes are not found in:

 
 
 
 

681. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

685. Lichens are indicators of :

 
 
 
 

686. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

689. 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:

 
 
 
 

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

 
 
 
 

691. Acellular slime mold is/are:

 
 
 
 

692. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

694. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

696. Who discovered streptomycin?

 
 
 
 

697. Select the wrong statement:

 
 
 
 

698. True sexuality is not found in:

 
 
 
 

699. The sporangia of Selaginella are attached:

 
 
 
 

700. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

704. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

706. Pinus gerardiana is :

 
 
 
 

707. In Gymnocarpeae the fruiting body is :

 
 
 
 

708. Which is the nuclear material in bacteria?

 
 
 
 

709. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

712. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

714. Most common type of conjugation in Spirogyra is :

 
 
 
 

715. Which fixes atmospheric nitrogen?

 
 
 
 

716. 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:

 
 
 
 

717. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

721. Most primitive embryophytes are placed in:

 
 
 
 

722. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. The lambda phase is a:

 
 
 
 

727. The group algae possesses representatives belonging to kingdom:

 
 
 
 

728. Embryophyta includes:

 
 
 
 

729. Pinus is:

 
 
 
 

730. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

733. Which is a fungicide?

 
 
 
 

734. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

741. Bacteria are found everywhere, except:

 
 
 
 

742. What is the role of nitrifying bacteria?

 
 
 
 

743. Protists which are diploid reproduce sexually by:

 
 
 
 

744. The chloroplast of Chlamydomonas are:

 
 
 
 

745. Mixed cropping helps :

 
 
 
 

746. In moss, sporogenous tissue arises from:

 
 
 
 

747. Red rot of sugarcane is caused by :

 
 
 
 

748. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

751. Transfusion tissue is present in the leaflet of:

 
 
 
 

752. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

754. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

756. Which is a tautonym?

 
 
 
 

757. E coli is a:

 
 
 
 

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

 
 
 
 

759. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

761. Yeast is a source of:

 
 
 
 

762. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

765. Placenta in fern is:

 
 
 
 

766. Photosynthetic bacteria have:

 
 
 
 

767. Cycas plant in appearance resembles :

 
 
 
 

768. Pteridophytes are also known as :

 
 
 
 

769. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

771. Fruits are not found in :

 
 
 
 

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

 
 
 
 

773. The gametophyte of fern bears:

 
 
 
 

774. Spirogyra represents the :

 
 
 
 

775. Which of the following is a parasitic algae?

 
 
 
 

776. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

778. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

780. Some biologists have used the term Mycetozoa for:

 
 
 
 

781. Which is the correct statement about Selaginella?

 
 
 
 

782. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

784. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

790. Lichens are pioneers of vegetation in a :

 
 
 
 

791. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

795. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

797. The vascular bundles of Cycas stem are :

 
 
 
 

798. Liverworts are included in :

 
 
 
 

799. Fern prothallus is:

 
 
 
 

800. Absorptive nutrition is:

 
 
 
 

801. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

803. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

805. Cycas is different from mango in :

 
 
 
 

806. All algae have:

 
 
 
 

807. In Cycas which structure is equivalent to stamen?

 
 
 
 

808. In moss, conducting tissue is made up of

 
 
 
 

809. The zoospores of Ulothrix are :

 
 
 
 

810. Bacteria growing on synthetic medium are called:

 
 
 
 

811. Water-net is the name of:

 
 
 
 

812. Downy mildew disease is caused by :

 
 
 
 

813. Ergot is obtained from :

 
 
 
 

814. Funaria is a Bryophyta because :

 
 
 
 

815. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

818. Sporophyte of Funaria is :

 
 
 
 

819. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

821. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

823. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

826. The spur of Pinus roxburghii has :

 
 
 
 

827. In moss, stomata are found:

 
 
 
 

828. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

830. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

831. Which bacteria convert nitrate into nitrogen?

 
 
 
 

832. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

834. All protozoans possess:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. The tallest moss in the world is :

 
 
 
 

840. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

842. . Tapetum develops in:

 
 
 
 

843. Bacteriophage consists of:

 
 
 
 

844. Little leaf disease of Brinjal is caused by:

 
 
 
 

845. Quarantine regulations are concerned with:

 
 
 
 

846. Cap cells are found in the filament of:

 
 
 
 

847. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. What is a vector?

 
 
 
 

851. In Selaginella, the microsporangia are:

 
 
 
 

852. Indusium in Dryopteris is:

 
 
 
 

853. Sometimes the bacterial cell is enclosed in:

 
 
 
 

854. In Funaria, calyptra is derived from :

 
 
 
 

855. Leprosy is caused by:

 
 
 
 

856. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

860. Isomorphic type alternation of generation is found in:

 
 
 
 

861. Parmelia belongs to :

 
 
 
 

862. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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