Quiz_Random

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

 
 
 
 

2. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Banana bunchy top is caused by :

 
 
 
 

9. Liverworts are included in :

 
 
 
 

10. Amoeba is a member of the phylum:

 
 
 
 

11. Photoautotrophic bacteria have:

 
 
 
 

12. The chromosomal number in:

 
 
 
 

13. Nitrifying bacteria play an important role by converting:

 
 
 
 

14. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

16. 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:

 
 
 
 

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

 
 
 
 

18. Male gametophyte of Selaginella is found:

 
 
 
 

19. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

21. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

23. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

24. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

26. Chief constituents of bordeaux mixture are :

 
 
 
 

27. Total parasites belong to:

 
 
 
 

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

 
 
 
 

29. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. The fungi used as food are:

 
 
 
 

34. Azolla growing in paddy fields helps in:

 
 
 
 

35. Mostly type of zygospore in Ulothrix is:

 
 
 
 

36. Pasteurization of milk involves heating for:

 
 
 
 

37. Bacteriophages have been used as:

 
 
 
 

38. 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:

 
 
 
 

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

 
 
 
 

40. Helotism word is used for the symbiosis between :

 
 
 
 

41. Generic name of mango is:

 
 
 
 

42. Interferon is a:

 
 
 
 

43. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

46. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

48. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

56. TMV was isolated in crystalline form by:

 
 
 
 

57. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

59. Gram stain is used to:

 
 
 
 

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

 
 
 
 

61. Acetobacter is useful in:

 
 
 
 

62. Facultative parasite is:

 
 
 
 

63. The tree fern is:

 
 
 
 

64. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

66. Meristele of fern is:

 
 
 
 

67. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

68. 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:

 
 
 
 

69. In Cycas:

 
 
 
 

70. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

72. The disease apple scab is caused by:

 
 
 
 

73. Pseudomycelium is found in:

 
 
 
 

74. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

76. An alga which is rich in proteins:

 
 
 
 

77. The chloroplast of Chlamydomonas are:

 
 
 
 

78. All algae have:

 
 
 
 

79. Embryo formation is not known in :

 
 
 
 

80. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

82. Pasteur is famous for his:

 
 
 
 

83. Lichens are pioneers of vegetation in a :

 
 
 
 

84. Reserve food in Euglena is:

 
 
 
 

85. Pneumonia is caused by:

 
 
 
 

86. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

88. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

90. Saccharomyces is used in:

 
 
 
 

91. Which statement is wrong in regard to bacteria?

 
 
 
 

92.

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

 
 
 
 

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

 
 
 
 

95. Fern plants are:

 
 
 
 

96. 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?

 
 
 
 

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

 
 
 
 

98. Which bacteria convert nitrate into nitrogen?

 
 
 
 

99. Which of the following is a parasitic algae?

 
 
 
 

100. Reproduction in Rhizopus is:

 
 
 
 

101. The most important property of yeast is:

 
 
 
 

102. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

105. Pythium debaryanum is the causative agent of:

 
 
 
 

106. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

108. In binomial system most of the words are:

 
 
 
 

109. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. The leafy fern plant represents the:

 
 
 
 

113. The lambda phase is a:

 
 
 
 

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

 
 
 
 

115. Which is the nuclear material in bacteria?

 
 
 
 

116. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

118. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

120. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

124. Red rot of sugarcane is caused by:

 
 
 
 

125. Yeast grows more rapidly in:

 
 
 
 

126. Which of the following is a heterosporous pteridophyte?

 
 
 
 

127. Ginkgo biloba is a:

 
 
 
 

128. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

130. A gill of Agaricus:

 
 
 
 

131. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

133. Ovules are not found enclosed in ovary of:

 
 
 
 

134. Centric discoid form of diatom is:

 
 
 
 

135. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

137. Which of the following lichens is harmful?

 
 
 
 

138. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

143. In moss, calyptra is formed from:

 
 
 
 

144. An Hfr bacterium is one that contains:

 
 
 
 

145. Most primitive embryophytes are placed in :

 
 
 
 

146. Sexual reproduction in Rhizopus is by:

 
 
 
 

147. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

149. The order generally ends with:

 
 
 
 

150. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

152. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

153. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

155. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

157. Longest known virus is:

 
 
 
 

158. Simple polyembryony is found in :

 
 
 
 

159. Most of the lichens are composed of :

 
 
 
 

160. Enteric bacteria are those bacteria that live:

 
 
 
 

161. Saccharomyces is well known for:

 
 
 
 

162. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

164. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

167. Cycas is :

 
 
 
 

168. Ovules are not found enclosed in ovary in :

 
 
 
 

169. Cycas plant in appearance resembles :

 
 
 
 

170. 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:

 
 
 
 

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

 
 
 
 

172. In Cycas microsporangia are borne on:

 
 
 
 

173. Chemosynthetic bacteria are:

 
 
 
 

174. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

177. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

179. Majority of lichens are :

 
 
 
 

180. Etiology includes the study of :

 
 
 
 

181. Which among the following is a shrub?

 
 
 
 

182. In a bacteriophage, DNA is present in:

 
 
 
 

183. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

185. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

188. The development of Selaginella embryo is:

 
 
 
 

189. Which is absent from the xylem of Cycas?

 
 
 
 

190. Which of the following statements is not correct?

 
 
 
 

191. The development of sporangium in Selaginella is:

 
 
 
 

192. Black rust of wheat is caused by:

 
 
 
 

193. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

196. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

201. Who discovered streptomycin?

 
 
 
 

202. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

205. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

207. Which causes red tide?

 
 
 
 

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

 
 
 
 

209. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

211. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

213. Kuru, a human disease is caused by:

 
 
 
 

214. Bacteria differ from viruses in being sensitive to:

 
 
 
 

215. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

221. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

223. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

226. Bivalved siliceous shell or frustule occur in:

 
 
 
 

227. The leaf of Cycas shows:

 
 
 
 

228. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

230. The zoospores of Ulothrix are :

 
 
 
 

231. The ascus of yeast contains:

 
 
 
 

232. The plants of Funaria grow :

 
 
 
 

233. Rhizoids of Riccia are :

 
 
 
 

234. LSD is:

 
 
 
 

235. Club moss is the common name of :

 
 
 
 

236. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

238. Cyathia is characterized by:

 
 
 
 

239. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

241. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

243. Select the wrong statement:

 
 
 
 

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

 
 
 
 

245. Virus and bacteriophage are made-up of:

 
 
 
 

246. Lichens reproduce by :

 
 
 
 

247. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

249. Cleavage polyembryony is found in :

 
 
 
 

250. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

251. The first to isolate a plant virus was:

 
 
 
 

252. Azolla and Salvinia both are:

 
 
 
 

253. Oswald Tippo’s classification is:

 
 
 
 

254. Sporophyte of fern is:

 
 
 
 

255. Who named prion?

 
 
 
 

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

 
 
 
 

257. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

260. Endemic plants are characterised by their:

 
 
 
 

261. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

265. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

267. Lichens reproduce by :

 
 
 
 

268. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

277. 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?

 
 
 
 

278. Isomorphic type alternation of generation is found in:

 
 
 
 

279. Which is a gametophytic tissue?

 
 
 
 

280. Which of the following applies to Selaginella?

 
 
 
 

281. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

283. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

286. Placenta in fern is:

 
 
 
 

287. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

290. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

292. The DNA of E coli is:

 
 
 
 

293. Among the algae kelps are :

 
 
 
 

294. Spermatophyta are characterized by producing:

 
 
 
 

295. Viruses are considered to be:

 
 
 
 

296. Vascular cryptogam is the term used for :

 
 
 
 

297. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

299. Streptomycin is obtained from:

 
 
 
 

300. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

302. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

305. Which have the largest antherozoid?

 
 
 
 

306. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

308. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

310. Bacteria growing on synthetic medium are called:

 
 
 
 

311. The male gametes of Pinus are :

 
 
 
 

312. Which of the following have a prokaryotic cell?

 
 
 
 

313. Cycas is:

 
 
 
 

314. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

316. Ovary is absent in:

 
 
 
 

317. Sporophyte of Funaria is :

 
 
 
 

318. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

323. Rhizopus and yeast are usually:

 
 
 
 

324. Bryophyta have been placed in cryptogams because:

 
 
 
 

325. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

328. Club moss and Peat moss belong to:

 
 
 
 

329. Vascular cryptogams is the term used for:

 
 
 
 

330. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

332. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

337. Which condition is found in Cycas?

 
 
 
 

338. Embryophyta includes :

 
 
 
 

339. Which of the following are included in Tracheophyta?

 
 
 
 

340. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

350. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

352. In Funaria :

 
 
 
 

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

 
 
 
 

354. Smut of maize is caused by :

 
 
 
 

355. Citrus canker is caused by :

 
 
 
 

356. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

358. In angiosperms double fertilization represents:

 
 
 
 

359. Protistan algae obtain their food as:

 
 
 
 

360. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

362. Cap cells are found in the filament of:

 
 
 
 

363. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

367. Water-borne bacterial diseases are:

 
 
 
 

368. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

372. Climbers are found in genus:

 
 
 
 

373. What is a vector?

 
 
 
 

374. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

375. The nucleus of bacteria is:

 
 
 
 

376. The Rhizopus is:

 
 
 
 

377. Cocci types of bacteria are:

 
 
 
 

378. The most primitive vascular plants is:

 
 
 
 

379. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

381. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

385. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

387. Aflatoxin is produced as a product in :

 
 
 
 

388. Vegetative reproduction in Cycas is by means of :

 
 
 
 

389. Fern prothallus produces:

 
 
 
 

390. Maximum diversity of life forms occurs in :

 
 
 
 

391. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

395. Why is Cycas called a living fossil?

 
 
 
 

396. Ergot is obtained from :

 
 
 
 

397. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

400. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

402. The rhizoids of Funaria are :

 
 
 
 

403. Multicellular and jacketed sex organs are found in :

 
 
 
 

404. Special feature of pollen grains of Pinus is :

 
 
 
 

405. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

407. Lichens form the first community in

 
 
 
 

408. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

412. Lichens are ecologically important because :

 
 
 
 

413. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

416. Triple antigen injection or vaccine are for:

 
 
 
 

417. The genetic material of poxvirus is:

 
 
 
 

418. Diploxylic vascular bundles are found in:

 
 
 
 

419. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

421. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

427. What is the role of nitrifying bacteria?

 
 
 
 

428. Small epidermal swellings due to infection are called :

 
 
 
 

429. Rhizopus belongs to:

 
 
 
 

430. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

432. Heterospory is the production of:

 
 
 
 

433. Proembryo in Pinus is :

 
 
 
 

434. Green plants are classified as :

 
 
 
 

435. Spermatophyta are characterized by producing:

 
 
 
 

436. Disease resistant plant varieties can be produced by :

 
 
 
 

437. Pinus is:

 
 
 
 

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

 
 
 
 

439. Some bacteria cannot be killed easily because of:

 
 
 
 

440. The fungi that grow on wood are called:

 
 
 
 

441. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

443. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

446. The zygospore in Rhizopus on germination forms:

 
 
 
 

447. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

450. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

452. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

458. Redness of red sea is due to :

 
 
 
 

459. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

461. Desired type of Cycas can be grown by:

 
 
 
 

462. Enzymes are absent in:

 
 
 
 

463. Bacteria were first discovered by:

 
 
 
 

464. Who discovered heterothallism in fungi?

 
 
 
 

465. Germ theory of disease was proposed by:

 
 
 
 

466. Viruses have:

 
 
 
 

467. Which of the following is true for Selaginella?

 
 
 
 

468. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

471. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

475. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

479. Milk is converted to curd by:

 
 
 
 

480. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

484. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

486. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

487. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

489. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

492. The sporangium of fern contains nearly:

 
 
 
 

493. In Cycas which structure is equivalent to stamen?

 
 
 
 

494. The tallest moss in the world is :

 
 
 
 

495. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

497. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

499. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

501. Penicillin was discovered by:

 
 
 
 

502. Psilotum is:

 
 
 
 

503. Fruits are not found in :

 
 
 
 

504. Protists which are diploid reproduce sexually by:

 
 
 
 

505. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

507. Leprosy is caused by:

 
 
 
 

508. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

512. Viruses are commonly transmitted in plants through:

 
 
 
 

513. Bacteria are found everywhere, except:

 
 
 
 

514. Winged pollen grains are found in :

 
 
 
 

515. Gametophyte is the main plant body in :

 
 
 
 

516. Asexual reproductive body of Volvox is called:

 
 
 
 

517. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

519. Funaria can be differentiated from Cycas :

 
 
 
 

520. White rust of crucifers is caused by:

 
 
 
 

521. Plasmids are:

 
 
 
 

522. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

526. Fruits are not found in:

 
 
 
 

527. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. Oswald Tippo’s classification was based on :

 
 
 
 

533. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

539. Zoogametes are not found in:

 
 
 
 

540. Green plants are classified as:

 
 
 
 

541. The fern plant is:

 
 
 
 

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

 
 
 
 

543. Most of the algae are :

 
 
 
 

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

 
 
 
 

545. Nannandria are:

 
 
 
 

546. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. In Gymnosperms endosperm is a:

 
 
 
 

550. Lichens are indicators of :

 
 
 
 

551. Which of the following does not contain chlorophyll?

 
 
 
 

552. Which is an exception to cell theory?

 
 
 
 

553. Photosynthetic protists belong to:

 
 
 
 

554. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

557. Ergot of rye is caused by:

 
 
 
 

558. Clostridium can:

 
 
 
 

559. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

565. E coli is a:

 
 
 
 

566. Which of the following have algal zone?

 
 
 
 

567. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

569. Vascular tissue is found in :

 
 
 
 

570. The smallest unit of classification is:

 
 
 
 

571. Select the wrong statement:

 
 
 
 

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

 
 
 
 

573. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

575. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

580. In moss, peristomial teeth are:

 
 
 
 

581. The young leaves of Cycas have :

 
 
 
 

582. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

584. Bacteria which are spherical are called:

 
 
 
 

585. Most appropriate word for protozoans is:

 
 
 
 

586. Coenogamete is found in:

 
 
 
 

587. Which is a fungicide?

 
 
 
 

588. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

592. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

594. Siphonogamy is found in:

 
 
 
 

595. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

597. Bacteria are placed under:

 
 
 
 

598. Mycoplasmas are not viruses in nature because:

 
 
 
 

599. 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:

 
 
 
 

600. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

602. In moss, stomata are found:

 
 
 
 

603. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

606. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

608. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

610. Lichens show :

 
 
 
 

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

 
 
 
 

612. The chloroplast in Ulothrix is :

 
 
 
 

613. Mycoplasma is different from bacteria due to:

 
 
 
 

614. Discovery of penicillin was based on:

 
 
 
 

615.

 

616. What are plasmids?

 
 
 
 

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

 
 
 
 

618. The antherozoids of Funaria are :

 
 
 
 

619. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

621. Heterosporous pteridophytes always form:

 
 
 
 

622. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

625. Meiosis in Ulothrix takes place:

 
 
 
 

626. Mycoplasma are:

 
 
 
 

627. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

629. The role of meiosis is for:

 
 
 
 

630. Methanogens belong to:

 
 
 
 

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

 
 
 
 

632. Bacteria are considered to be plants because they:

 
 
 
 

633. The source of litmus is :

 
 
 
 

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

 
 
 
 

635. Which is an edible fungus?

 
 
 
 

636. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

638. The group algae possesses representatives belonging to kingdom:

 
 
 
 

639. Water-net is the name of:

 
 
 
 

640. In Herpes virus DNA is:

 
 
 
 

641. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. In dinoflagellates, the two flagella are:

 
 
 
 

645. Fruiting body of lichens is :

 
 
 
 

646. Streptomyces falls under:

 
 
 
 

647. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

650. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

652. Viroids have:

 
 
 
 

653. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

655. The disease symptom necrosis refers to :

 
 
 
 

656. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

658. In tracheophyta:

 
 
 
 

659. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

660. The prothallus of fern is:

 
 
 
 

661. Yeast belongs to class:

 
 
 
 

662. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

670. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

673. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

675. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

678. Most resistant spore in bacteria is:

 
 
 
 

679. The gametophyte of moss has distinct phases :

 
 
 
 

680. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

684. The ferns are usually found:

 
 
 
 

685. The flagella of Chlamydomonas are:

 
 
 
 

686. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

689. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

691. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

693. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

695. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

697. Where does meiosis occur in yeast?

 
 
 
 

698. Pollination in Pinus is :

 
 
 
 

699. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

706. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

708. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

711. All protozoans possess:

 
 
 
 

712. Mucilaginous canals in Cycas are found in :

 
 
 
 

713. Antibiotic has been extracted from :

 
 
 
 

714. The microsporophylls on the cone of Cycas are :

 
 
 
 

715. How is moss different from fern?

 
 
 
 

716. Funaria is :

 
 
 
 

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

 
 
 
 

718. The phloem of vascular system of Cycas is :

 
 
 
 

719. The stele of Dryopteris is a:

 
 
 
 

720. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

723. The alga, Spirogyra are found in :

 
 
 
 

724. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

727. Pythium debaryanum is the causative agent of:

 
 
 
 

728. The vascular bundles of Cycas stem are :

 
 
 
 

729.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

733. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

735. The similarity between cyanobacteria and bacteria:

 
 
 
 

736. Indusium in Dryopteris is:

 
 
 
 

737. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

739. Reproduction in Cycas takes place by :

 
 
 
 

740. The leaves of Funaria are :

 
 
 
 

741. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

743. Which of the following is a monocot?

 
 
 
 

744. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

746. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

747. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

749. Lichen show :

 
 
 
 

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

 
 
 
 

751. Which is not true for Escherichia coli?

 
 
 
 

752. The spur of Pinus roxburghii has :

 
 
 
 

753. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

756. Fairy ring is the name given to:

 
 
 
 

757. What is special feature of fern archegonia?

 
 
 
 

758. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

760. Fertility of the soil is increased by:

 
 
 
 

761. Ovary is absent in :

 
 
 
 

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

 
 
 
 

763. The term stele was given by:

 
 
 
 

764. The largest alga is:

 
 
 
 

765. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

768. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

774. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

776. Smallpox is caused by:

 
 
 
 

777. The antibiotic is obtained from:

 
 
 
 

778. Which is not found in bacteria?

 
 
 
 

779. To which class Riccia belongs :

 
 
 
 

780. Bacteriophage consists of:

 
 
 
 

781. The gametophyte of fern is as:

 
 
 
 

782. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

784. The sporophyte of Riccia is :

 
 
 
 

785. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

789. True sexuality is not found in:

 
 
 
 

790. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

792. Most primitive embryophytes are placed in:

 
 
 
 

793. The gametophyte of fern bears:

 
 
 
 

794. Some diseases caused by bacteria are:

 
 
 
 

795. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

796. Typhoid in man is caused by:

 
 
 
 

797. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

799. Nitrogen-fixing bacteria may be located:

 
 
 
 

800. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

802. Seeds are characteristically found in:

 
 
 
 

803. Absorptive nutrition is:

 
 
 
 

804. 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:

 
 
 
 

805. The fungi are mostly:

 
 
 
 

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

 
 
 
 

807.

808. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

809. What is streptomycin?

 
 
 
 

810. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

812. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

817. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

819. In Pteris, the roots are:

 
 
 
 

820. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

822. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

831. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

833. Iodine is obtained from :

 
 
 
 

834. Pollination drop is:

 
 
 
 

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

 
 
 
 

836. Yeast is a source of:

 
 
 
 

837. Ethylene oxide is widely used to:

 
 
 
 

838. The chief characteristic of bryophyta is that :

 
 
 
 

839. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

841. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

843. Embryophyta includes:

 
 
 
 

844. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

848. Botulism is a:

 
 
 
 

849. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

853. Bentham and Hooker placed gymnosperms:

 
 
 
 

854. Metulae are found in:

 
 
 
 

855. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

858. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

860. Which is a tautonym?

 
 
 
 

861. Mycoplasma are sensitive to:

 
 
 
 

862. Germination of the seed of Pinus is :

 
 
 
 

863. The middle sterile part of capsule is called:

 
 
 
 

864. Male gametes in Dryopteris are: