Quiz_Random

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

 
 
 
 

2. Little leaf disease of Brinjal is caused by:

 
 
 
 

3. The term stele was given by:

 
 
 
 

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

 
 
 
 

5. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Simple polyembryony is found in :

 
 
 
 

9. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

10. Disease resistant plant varieties can be produced by :

 
 
 
 

11. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

13. The smallest unit of classification is:

 
 
 
 

14. The tree fern is:

 
 
 
 

15. The first to isolate a plant virus was:

 
 
 
 

16. Number of capsomeres forming capsid of TMV is:

 
 
 
 

17. Who discovered streptomycin?

 
 
 
 

18. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

20. Which is a gametophytic tissue?

 
 
 
 

21. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

23. Male gametophyte of Selaginella is found:

 
 
 
 

24. Ergot is obtained from :

 
 
 
 

25. Etiology includes the study of :

 
 
 
 

26. The prothallus of fern represents the plant:

 
 
 
 

27. Maximum diversity of life forms occurs in :

 
 
 
 

28. Which statement is wrong in regard to bacteria?

 
 
 
 

29. The mycelium of Rhizopus is:

 
 
 
 

30. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

36. Rhizopus belongs to:

 
 
 
 

37. The photosynthetic protists are:

 
 
 
 

38. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

40. The leaves of Funaria are :

 
 
 
 

41. The most important property of yeast is:

 
 
 
 

42. The microsporophylls on the cone of Cycas are :

 
 
 
 

43. The sporangia of Selaginella are attached:

 
 
 
 

44. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Funaria is :

 
 
 
 

49. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

51. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

53. Metulae are found in:

 
 
 
 

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

 
 
 
 

55. The gametophyte of moss has distinct phases :

 
 
 
 

56. Lichens form the first community in

 
 
 
 

57. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

59. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Mycoplasma was discovered by:

 
 
 
 

65. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Viroids have:

 
 
 
 

70. Select the correct statement: (NEET 2016)

 
 
 
 

71. Linnaeus is credited with introducing:

 
 
 
 

72. Which group of algae have an incipient nucleus?

 
 
 
 

73. 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:

 
 
 
 

74. Mostly type of zygospore in Ulothrix is:

 
 
 
 

75. NBG of Lucknow is now named as:

 
 
 
 

76. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

78. Protistan algae obtain their food as:

 
 
 
 

79. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

84. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

85. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

87. The sexual reproductive organs in Rhizopus are:

 
 
 
 

88. Total parasites belong to:

 
 
 
 

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

 
 
 
 

90. TMV was isolated in crystalline form by:

 
 
 
 

91. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

93. Vascular tissue is found in :

 
 
 
 

94. Fern prothallus produces:

 
 
 
 

95. In Cycas microsporangia are borne on:

 
 
 
 

96. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

98. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

102. In Pteris, the archegonia are present:

 
 
 
 

103. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

105. Halophiles are the bacteria that require for growth:

 
 
 
 

106. The lichens growing on rocks are called :

 
 
 
 

107. Pneumonia is caused by:

 
 
 
 

108. Most appropriate word for protozoans is:

 
 
 
 

109. The tallest moss in the world is :

 
 
 
 

110. Pollination in Cycas takes place by :

 
 
 
 

111. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

118. Banana bunchy top is caused by :

 
 
 
 

119. Which is a redwood tree?

 
 
 
 

120. Green plants are classified as:

 
 
 
 

121. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

123. Water-net is the name of:

 
 
 
 

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

 
 
 
 

125. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

130. 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:

 
 
 
 

131. The mode of nutrition of bacteria is usually:

 
 
 
 

132. Pinus is:

 
 
 
 

133. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

135. The teeth of peristome of Funaria are :

 
 
 
 

136. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

140. Clostridium can:

 
 
 
 

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

 
 
 
 

142. Detailed study of bacteriophage was made by:

 
 
 
 

143. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

144. Pasteur is famous for his:

 
 
 
 

145. The stele of Dryopteris is a:

 
 
 
 

146. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

150. Citrus canker is caused by:

 
 
 
 

151. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

154. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. Bacteria which are spherical are called:

 
 
 
 

158. Which of the following applies to Selaginella?

 
 
 
 

159. Sexual reproduction in Rhizopus is by:

 
 
 
 

160. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

164. Enteric bacteria are those bacteria that live:

 
 
 
 

165. In tracheophyta:

 
 
 
 

166. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

170. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. Nitrogen-fixing bacteria may be located:

 
 
 
 

174. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

177. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

179. Mycoplasma are:

 
 
 
 

180. Common phycobiont in a lichen is :

 
 
 
 

181. Cycas is:

 
 
 
 

182. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

184. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

192. Streptomycin is obtained from:

 
 
 
 

193. Reproduction in Rhizopus is:

 
 
 
 

194. Embryophyta includes:

 
 
 
 

195. Pteridophytes are also known as :

 
 
 
 

196. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

198. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

200. Desired type of Cycas can be grown by:

 
 
 
 

201. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

210. Which of the following shows heterotrichous habit?

 
 
 
 

211. Cryptogams include :

 
 
 
 

212. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

213. Yeast belongs to class:

 
 
 
 

214. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

216. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

219. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Most of the lichens are composed of :

 
 
 
 

224. The chief characteristic of bryophyta is that :

 
 
 
 

225. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

227. In binomial system most of the words are:

 
 
 
 

228. Funaria is :

 
 
 
 

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

 
 
 
 

230. Yeast grows more rapidly in:

 
 
 
 

231. What is absent in Deuteromycetes?

 
 
 
 

232. Polystelic condition is found in:

 
 
 
 

233. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

234. Azolla growing in paddy fields helps in:

 
 
 
 

235. The ascus of yeast contains:

 
 
 
 

236. Male gametes in Dryopteris are:

 
 
 
 

237. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

239. The largest alga is:

 
 
 
 

240. Nitrifying bacteria play an important role by converting:

 
 
 
 

241. The gametophyte produced by apospory is :

 
 
 
 

242. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

244. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

246. In Gymnocarpeae the fruiting body is :

 
 
 
 

247. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. Pinus microsporophyll bears:

 
 
 
 

251. The flagella of Chlamydomonas are:

 
 
 
 

252. John Hutchinson divided dicots into two divisions:

 
 
 
 

253. Zoogametes are not found in:

 
 
 
 

254. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

256. In moss, stomata are found:

 
 
 
 

257. Spermatophyta are characterized by producing:

 
 
 
 

258. The orders generally have the uniform endings:

 
 
 
 

259. The leafy fern plant represents the:

 
 
 
 

260. Majority of lichens are :

 
 
 
 

261. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

263. How is moss different from fern?

 
 
 
 

264. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

266. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

269. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

277. Most primitive group of vascular plants are:

 
 
 
 

278. Siphonogamy is found in:

 
 
 
 

279. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. The fern plant is:

 
 
 
 

285. Genetic material of TMV is:

 
 
 
 

286. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

288. Vascular cryptogams is the term used for:

 
 
 
 

289. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

291. Why is Cycas called a living fossil?

 
 
 
 

292. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

294. Fern prothallus is:

 
 
 
 

295. Which of the following is a parasitic algae?

 
 
 
 

296. The largest known bacterium is:

 
 
 
 

297. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

299. Placenta in fern is:

 
 
 
 

300. Milk is converted to curd by:

 
 
 
 

301. In dinoflagellates, the two flagella are:

 
 
 
 

302. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

303. Antibiotic has been extracted from :

 
 
 
 

304. Longest known virus is:

 
 
 
 

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

 
 
 
 

306. Wine turns sour because of:

 
 
 
 

307. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

309. Antibiotics cure the disease by:

 
 
 
 

310. Fern plants are:

 
 
 
 

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

 
 
 
 

312. In angiosperms double fertilization represents:

 
 
 
 

313. Heterospory and ligulate leaves are a feature of:

 
 
 
 

314. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

316. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

318. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

323. Gametophyte is the main plant body in :

 
 
 
 

324. Cycas is :

 
 
 
 

325. Usually, bacteria reproduce by:

 
 
 
 

326. Viruses are considered to be:

 
 
 
 

327. In Funaria, calyptra is derived from :

 
 
 
 

328. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. Pollination drop is:

 
 
 
 

336. Lichens are indicators of :

 
 
 
 

337.

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

 
 
 
 

339. In moss, reduction division occurs in :

 
 
 
 

340. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

344. Heterotrichous habit means :

 
 
 
 

345. Ethylene oxide is widely used to:

 
 
 
 

346. Leprosy is caused by:

 
 
 
 

347. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

349. Red rot of sugarcane is caused by :

 
 
 
 

350. In Cycas the fertilization is:

 
 
 
 

351. Meiosis in Ulothrix takes place:

 
 
 
 

352. The prothallus of fern is:

 
 
 
 

353. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

356. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

359. The middle sterile part of capsule is called:

 
 
 
 

360. Woody climbers are known as :

 
 
 
 

361. Circular DNA is seen in:

 
 
 
 

362. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

366. Which of the following is true for Selaginella?

 
 
 
 

367. Economic importance of bacteria lies in their being:

 
 
 
 

368. 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?

 
 
 
 

369. To which class Riccia belongs :

 
 
 
 

370. Bacteriophages have been used as:

 
 
 
 

371. Centric discoid form of diatom is:

 
 
 
 

372. Water-borne bacterial diseases are:

 
 
 
 

373. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. Most primitive embryophytes are placed in :

 
 
 
 

379. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

381. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

384. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

386. Late blight of potato is caused by :

 
 
 
 

387. Funaria is a Bryophyta because :

 
 
 
 

388. Penicillin is obtained from:

 
 
 
 

389. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

391. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

394.

 

395. Heterocysts are found in :

 
 
 
 

396. E coli is a:

 
 
 
 

397. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

398. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

400. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

403. Bacteria growing on synthetic medium are called:

 
 
 
 

404. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

406. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

408. Selaginella differs from Moss in having:

 
 
 
 

409. The antibiotic is obtained from:

 
 
 
 

410. The smallest bacterium is:

 
 
 
 

411. Indusium in Dryopteris is:

 
 
 
 

412. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

415. Parmelia belongs to :

 
 
 
 

416. Pythium debaryanum is the causative agent of:

 
 
 
 

417. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

418. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

420. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

422. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

424. The source of litmus is :

 
 
 
 

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

 
 
 
 

426. What is special feature of fern archegonia?

 
 
 
 

427. Cell walls of Gram-positive bacteria contain:

 
 
 
 

428. Lichen show :

 
 
 
 

429. Fairy ring is the name given to:

 
 
 
 

430. Gram stain is used to:

 
 
 
 

431. Generic name of mango is:

 
 
 
 

432. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

434. Which among the following is a shrub?

 
 
 
 

435. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

440. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

442. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

445. The nucleus of bacteria is:

 
 
 
 

446. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

448. Roots are absent in :

 
 
 
 

449. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

453. 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:

 
 
 
 

454. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

455. All algae have:

 
 
 
 

456. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

459. Which have the largest antherozoid?

 
 
 
 

460. In Selaginella, the microsporangia are:

 
 
 
 

461. Most primitive embryophytes are placed in:

 
 
 
 

462. Which of the following does not contain chlorophyll?

 
 
 
 

463. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. Transfusion tissue is present in the leaflet of:

 
 
 
 

467. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

470. Cellular slime mold is:

 
 
 
 

471. The sporangium of fern contains nearly:

 
 
 
 

472. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

474. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

477. Special feature of pollen grains of Pinus is :

 
 
 
 

478. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

480. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

483. How a fern differs from a moss?

 
 
 
 

484. The zoospores of Ulothrix are :

 
 
 
 

485. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

486. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

488. Ovary is absent in :

 
 
 
 

489. In a bacteriophage, DNA is present in:

 
 
 
 

490. The chromosomal number in:

 
 
 
 

491. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

494. All protozoans possess:

 
 
 
 

495. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

497. Red rot of sugarcane is caused by :

 
 
 
 

498. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

501. The leaves of Funaria are :

 
 
 
 

502. Smut of maize is caused by :

 
 
 
 

503. 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:

 
 
 
 

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

 
 
 
 

505. The archegonia of Selaginella are differentiated by:

 
 
 
 

506. Oswald Tippo’s classification was based on :

 
 
 
 

507. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

511. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. The fungi used as food are:

 
 
 
 

522. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

525. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

527. Cycas is different from mango in :

 
 
 
 

528.

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

 
 
 
 

530. Which is an edible fungus?

 
 
 
 

531. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

533. Who discovered heterothallism in fungi?

 
 
 
 

534. Ovary is absent in:

 
 
 
 

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

 
 
 
 

536. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

537. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

539. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

541. Which is a tautonym?

 
 
 
 

542. Sleeping sickness disease in man is caused by:

 
 
 
 

543. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

545. The most primitive vascular plants is:

 
 
 
 

546. 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:

 
 
 
 

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

 
 
 
 

548. The male gametes of Pinus are :

 
 
 
 

549. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

551. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

553. Bentham and Hooker placed gymnosperms:

 
 
 
 

554. Chemosynthetic bacteria are:

 
 
 
 

555. Sometimes the bacterial cell is enclosed in:

 
 
 
 

556. Which is not found in bacteria?

 
 
 
 

557. Seeds are characteristically found in:

 
 
 
 

558. In Cycas:

 
 
 
 

559. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

561. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

564. Liverworts are included in :

 
 
 
 

565. The phloem of vascular system of Cycas is :

 
 
 
 

566. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

571. Which bacteria convert nitrate into nitrogen?

 
 
 
 

572. Which one of the following statement is wrong?

 
 
 
 

573. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

576. Red rot of sugarcane is caused by:

 
 
 
 

577. Club moss and Peat moss belong to:

 
 
 
 

578. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

580. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

582. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

585. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

587. Bacteria are found everywhere, except:

 
 
 
 

588. Cap cells are found in the filament of:

 
 
 
 

589. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

591. The group algae possesses representatives belonging to kingdom:

 
 
 
 

592. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

595. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

597. Which of the following statements is not correct?

 
 
 
 

598. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

604. Quarantine regulations are concerned with:

 
 
 
 

605. Spirogyra differs from moss protonema in having :

 
 
 
 

606. Enzymes are absent in:

 
 
 
 

607. Streptomyces falls under:

 
 
 
 

608. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

614. One of the distinctive feature of Spirogyra is :

 
 
 
 

615. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

617. Which causes red tide?

 
 
 
 

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

 
 
 
 

619. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

620. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

621. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

625. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

626. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

629. Bacteriophage consists of:

 
 
 
 

630. The gametophyte of fern bears:

 
 
 
 

631. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

633. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

638. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. Rhizopus and yeast are usually:

 
 
 
 

644. Club moss is the common name of :

 
 
 
 

645. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

647. In Funaria :

 
 
 
 

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

 
 
 
 

649. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

651. The truncated cone of HIV consists of:

 
 
 
 

652. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

654. Lichens are ecologically important because :

 
 
 
 

655. The role of meiosis is for:

 
 
 
 

656. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

659. Saccharomyces is well known for:

 
 
 
 

660. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

663. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

665. Which is not true for Escherichia coli?

 
 
 
 

666. Ulothrix produces :

 
 
 
 

667. The antherozoids of Funaria are :

 
 
 
 

668. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

670. Amoeba is a member of the phylum:

 
 
 
 

671. Lichens reproduce by :

 
 
 
 

672. The coralloid roots are :

 
 
 
 

673. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

679. The lambda phase is a:

 
 
 
 

680. Agar-agar is obtained from:

 
 
 
 

681. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

684. . Tapetum develops in:

 
 
 
 

685. Standard size of a herbarium sheet is:

 
 
 
 

686. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

688. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

689. Choose the correct statement about Spirogyra:

 
 
 
 

690. White rust of crucifers is caused by:

 
 
 
 

691. The sporangiophores in Rhizopus are:

 
 
 
 

692. The Rhizopus is:

 
 
 
 

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

 
 
 
 

694. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

696. Asexual reproductive body of Volvox is called:

 
 
 
 

697. LSD is:

 
 
 
 

698. A gill of Agaricus:

 
 
 
 

699. Plasmids are:

 
 
 
 

700. The seedless plants which possess vascular tissues are:

 
 
 
 

701. Some diseases caused by bacteria are:

 
 
 
 

702. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

704. Synzoospore is produced in:

 
 
 
 

705. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

707. Reproduction in Cycas takes place by :

 
 
 
 

708. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

711. The fungi are usually:

 
 
 
 

712. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

714. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

716. Bacteria are considered to be plants because they:

 
 
 
 

717. Proembryo in Pinus is :

 
 
 
 

718. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

720. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

723. The megasporangium of Selaginella is:

 
 
 
 

724. The archegonia in Selaginella develop on:

 
 
 
 

725. The zygospore in Rhizopus on germination forms:

 
 
 
 

726.

727. Absorptive nutrition is:

 
 
 
 

728. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

730. Endemic plants are characterised by their:

 
 
 
 

731. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

734. The spur of Pinus roxburghii has :

 
 
 
 

735. Aflatoxin is produced by:

 
 
 
 

736. Early blight of potato is caused by:

 
 
 
 

737. Interferon is a:

 
 
 
 

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

 
 
 
 

739. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

745. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

749. Botulinum toxin effects:

 
 
 
 

750. Where does meiosis occur in yeast?

 
 
 
 

751. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

752. Most of the algae are :

 
 
 
 

753. Pasteurized milk is:

 
 
 
 

754. Winged pollen grains are found in :

 
 
 
 

755. 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:

 
 
 
 

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

 
 
 
 

757. Sporophyte of fern is:

 
 
 
 

758. Acetobacter is useful in:

 
 
 
 

759. The DNA of E coli is:

 
 
 
 

760. Water bloom is generally caused by :

 
 
 
 

761. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

767. Funaria can be differentiated from Cycas :

 
 
 
 

768. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

770. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

773. Bryophyta have been placed in cryptogams because:

 
 
 
 

774. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

776. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

778. Which is a fungicide?

 
 
 
 

779. In Herpes virus DNA is:

 
 
 
 

780. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

783. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

785. Smallpox is caused by:

 
 
 
 

786. Downy mildew disease is caused by :

 
 
 
 

787. Chief constituents of bordeaux mixture are :

 
 
 
 

788. Botulism is a:

 
 
 
 

789. Bacteria were first discovered by:

 
 
 
 

790. Facultative parasite is:

 
 
 
 

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

 
 
 
 

792. Which is the correct statement about Selaginella?

 
 
 
 

793. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

795. The vascular bundles of Cycas stem are :

 
 
 
 

796. 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?

 
 
 
 

797. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

799. Fruits are not found in :

 
 
 
 

800. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

802. 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?

 
 
 
 

803. 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:

 
 
 
 

804. Mycoplasma contains:

 
 
 
 

805. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

810. Bacteria differ from viruses in being sensitive to:

 
 
 
 

811. The development of Selaginella embryo is:

 
 
 
 

812. Lichens are pioneers of vegetation in a :

 
 
 
 

813. In Pteris, the roots are:

 
 
 
 

814. Gymnosperms could also be called as:

 
 
 
 

815. What is a vector?

 
 
 
 

816. In moss, calyptra is formed from:

 
 
 
 

817. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

819. Pseudomycelium is found in:

 
 
 
 

820. Protozoans are considered animals because these are:

 
 
 
 

821. Infective part of virus was discovered by:

 
 
 
 

822. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

825. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

827. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

830. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

832. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

837. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

839. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. Saccharomyces ludwigii ascus produces:

 
 
 
 

844. Select the wrong statement:

 
 
 
 

845. Multicellular and jacketed sex organs are found in :

 
 
 
 

846. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

848. Mucilaginous canals in Cycas are found in :

 
 
 
 

849. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

853. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

856. 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?

 
 
 
 

857. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

859. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

861. The roots of Cycas are :

 
 
 
 

862. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

864. The gametophyte of fern is as: