Quiz_Random

1. The root nodules of leguminous plants contain:

 
 
 
 

2. The gametophyte of fern bears:

 
 
 
 

3. Gram stain is used to:

 
 
 
 

4. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

6. Discovery of penicillin was based on:

 
 
 
 

7. Pinus gerardiana is :

 
 
 
 

8. Metulae are found in:

 
 
 
 

9. John Hutchinson divided dicots into two divisions:

 
 
 
 

10. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Asexual reproductive body of Volvox is called:

 
 
 
 

14. Late blight of potato is caused by :

 
 
 
 

15. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

17. Which of the following are absent in Mycoplasma?

 
 
 
 

18. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Heterotrichous habit means :

 
 
 
 

22. Parmelia belongs to :

 
 
 
 

23. Which is a fungicide?

 
 
 
 

24. NBG of Lucknow is now named as:

 
 
 
 

25. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

36. Ethylene oxide is widely used to:

 
 
 
 

37. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

39. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

41. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

43. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

45. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

46. Most common type of conjugation in Spirogyra is :

 
 
 
 

47. The ferns are usually found:

 
 
 
 

48. The zoospores of Ulothrix are :

 
 
 
 

49. Methanogens belong to:

 
 
 
 

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

 
 
 
 

51. Longest known virus is:

 
 
 
 

52. Synzoospore is produced in:

 
 
 
 

53. In Funaria :

 
 
 
 

54. In Herpes virus DNA is:

 
 
 
 

55. Viruses are commonly transmitted in plants through:

 
 
 
 

56. In Cycas the fertilization is:

 
 
 
 

57. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. Bivalved siliceous shell or frustule occur in:

 
 
 
 

62. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

68. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

70. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

72. The sporangium of fern contains nearly:

 
 
 
 

73. The chromosomal number in:

 
 
 
 

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

 
 
 
 

75. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. The order generally ends with:

 
 
 
 

80. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. What are plasmids?

 
 
 
 

88. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

89. Saccharomyces is used in:

 
 
 
 

90. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

93. Reproduction in Rhizopus is:

 
 
 
 

94. Lichens are ecologically important because :

 
 
 
 

95. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

97. Club moss and Peat moss belong to:

 
 
 
 

98. E coli is a:

 
 
 
 

99. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

100. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

103. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

105. Funaria is a Bryophyta because :

 
 
 
 

106. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

108. Funaria is :

 
 
 
 

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

 
 
 
 

110. Ovary is absent in :

 
 
 
 

111. The gametophyte of moss has distinct phases :

 
 
 
 

112. Plasmids are:

 
 
 
 

113. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. Chemosynthetic bacteria are:

 
 
 
 

117. Azolla and Salvinia both are:

 
 
 
 

118. Absorptive nutrition is:

 
 
 
 

119. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

121. The most important property of yeast is:

 
 
 
 

122. The teeth of peristome of Funaria are :

 
 
 
 

123. The leaves of Funaria are :

 
 
 
 

124. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. Cocci types of bacteria are:

 
 
 
 

129. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

131. The tallest moss in the world is :

 
 
 
 

132. Nannandria are:

 
 
 
 

133. Virus and bacteriophage are made-up of:

 
 
 
 

134. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

136. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

139. The vascular bundles of Cycas stem are :

 
 
 
 

140. Most of the algae are :

 
 
 
 

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

 
 
 
 

142. In moss, sporophyte is formed on:

 
 
 
 

143. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

145. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

148. Pteridophytes are also known as :

 
 
 
 

149. LSD is:

 
 
 
 

150. In moss, sporogenous tissue arises from:

 
 
 
 

151.

 

152. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

154. Special feature of pollen grains of Pinus is :

 
 
 
 

155. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

157. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

159. In Selaginella, the microsporangia are:

 
 
 
 

160. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

163. Ovary is absent in:

 
 
 
 

164. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

171. The development of sporangium in Selaginella is:

 
 
 
 

172. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

174. Broad spectrum antibiotic is, which:

 
 
 
 

175. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

178. Leaf spot of groundnut is caused by :

 
 
 
 

179. Embryophyta includes:

 
 
 
 

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

 
 
 
 

181. Pasteurization of milk involves heating for:

 
 
 
 

182. Triple antigen injection or vaccine are for:

 
 
 
 

183. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

186. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

190. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

194. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

195. Where does meiosis occur in yeast?

 
 
 
 

196. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

198. Fertility of the soil is increased by:

 
 
 
 

199. 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:

 
 
 
 

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

 
 
 
 

201. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

203. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

205. Soil fertility is lost by the activities of:

 
 
 
 

206. Lichens are indicators of :

 
 
 
 

207. Heterospory and ligulate leaves are a feature of:

 
 
 
 

208. The first to isolate a plant virus was:

 
 
 
 

209. Rhizopus belongs to:

 
 
 
 

210. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. Photosynthetic bacteria have:

 
 
 
 

217. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

222. The mode of nutrition of bacteria is usually:

 
 
 
 

223. Which statement is wrong in regard to bacteria?

 
 
 
 

224. Which condition is found in Cycas?

 
 
 
 

225. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

227. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

232. Desired type of Cycas can be grown by:

 
 
 
 

233. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. Saccharomyces is well known for:

 
 
 
 

237. The fungi used as food are:

 
 
 
 

238. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

240. The upper region of moss capsule is :

 
 
 
 

241. Iodine is obtained from :

 
 
 
 

242. Funaria can be differentiated from Cycas :

 
 
 
 

243. The DNA of E coli is:

 
 
 
 

244. Maximum diversity of life forms occurs in :

 
 
 
 

245. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

247. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. Vascular tissue is found in :

 
 
 
 

251. Which is the nuclear material in bacteria?

 
 
 
 

252. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. Economic importance of bacteria lies in their being:

 
 
 
 

256. Yeast grows more rapidly in:

 
 
 
 

257. Which is not found in bacteria?

 
 
 
 

258. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

260. Mycoplasma are:

 
 
 
 

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

 
 
 
 

262. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

264. The sori in Dryopteris are found on:

 
 
 
 

265. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

267. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

270. Pollination in Cycas takes place by :

 
 
 
 

271. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

274. What are Cyanobacteria?

 
 
 
 

275. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

278. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

280. How is moss different from fern?

 
 
 
 

281. The rhizoids of Funaria are :

 
 
 
 

282. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

286. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

288. Nitrifying bacteria play an important role by converting:

 
 
 
 

289. All algae have:

 
 
 
 

290. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

293. To which class Riccia belongs :

 
 
 
 

294. Facultative parasite is:

 
 
 
 

295. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299. The smallest bacterium is:

 
 
 
 

300. The microsporophylls on the cone of Cycas are :

 
 
 
 

301. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

303. Which one of the following is a monocot?

 
 
 
 

304. Acetobacter is useful in:

 
 
 
 

305. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. Polystelic condition is found in:

 
 
 
 

310. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

313. 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:

 
 
 
 

314. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

316. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

318. Pasteurized milk is:

 
 
 
 

319. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

321. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

323. Fern plants are:

 
 
 
 

324. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

326. How a fern differs from a moss?

 
 
 
 

327. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

329. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. Red rot of sugarcane is caused by :

 
 
 
 

333. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. Which of the following statements is not correct?

 
 
 
 

337. Fern prothallus produces:

 
 
 
 

338. The roots of Cycas are :

 
 
 
 

339. The largest alga is:

 
 
 
 

340. Majority of lichens are :

 
 
 
 

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

 
 
 
 

342. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

345. Which is a tautonym?

 
 
 
 

346. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

348. To which country Antony van Leeuwenhoek belong?

 
 
 
 

349. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

351. Yeast is a source of:

 
 
 
 

352. Pneumonia is caused by:

 
 
 
 

353. The term stele was given by:

 
 
 
 

354. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

356. Genetic material of TMV is:

 
 
 
 

357. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

360. Who among the following discovered virus?

 
 
 
 

361. The phloem of vascular system of Cycas is :

 
 
 
 

362. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

365. Ovules are not found enclosed in ovary in :

 
 
 
 

366. Etiology includes the study of :

 
 
 
 

367. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

369. Which group of algae have an incipient nucleus?

 
 
 
 

370. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

372. 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?

 
 
 
 

373. Cyathia is characterized by:

 
 
 
 

374. The gametophyte of fern is as:

 
 
 
 

375. Rhizoids of Riccia are :

 
 
 
 

376. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

378. Meristele of fern is:

 
 
 
 

379. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

383. In Gymnosperms endosperm is a:

 
 
 
 

384. Cycas plant in appearance resembles :

 
 
 
 

385. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

387. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

390. Which fixes atmospheric nitrogen?

 
 
 
 

391. Fruits are not found in :

 
 
 
 

392. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

394. Green plants are classified as:

 
 
 
 

395. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

399. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

400. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

403. Most resistant spore in bacteria is:

 
 
 
 

404. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

408. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

410. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

412. The genetic material of poxvirus is:

 
 
 
 

413. Vascular cryptogams is the term used for:

 
 
 
 

414. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

416. Which of the following have algal zone?

 
 
 
 

417. Kuru, a human disease is caused by:

 
 
 
 

418. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

419. Facultative saprophyte is:

 
 
 
 

420. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

427. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

429. Halophiles are the bacteria that require for growth:

 
 
 
 

430. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. Fruits are not found in:

 
 
 
 

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

 
 
 
 

435. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

436. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

438.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

442. Multicellular and jacketed sex organs are found in :

 
 
 
 

443. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

445. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

447. Which is absent from the xylem of Cycas?

 
 
 
 

448. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

450. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

453. Citrus canker is caused by :

 
 
 
 

454. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

459. Which of the following are included in Tracheophyta?

 
 
 
 

460. Most primitive embryophytes are placed in:

 
 
 
 

461. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

463. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

468. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

471. Fruits are not found in Cycas because:

 
 
 
 

472. Select the wrong statement:

 
 
 
 

473. In angiosperms double fertilization represents:

 
 
 
 

474. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

476. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

479. In moss, calyptra is formed from:

 
 
 
 

480. In moss, peristomial teeth are:

 
 
 
 

481. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

487. Common phycobiont in a lichen is :

 
 
 
 

488. Cycas is:

 
 
 
 

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

 
 
 
 

490. What is a vector?

 
 
 
 

491. Circular DNA is seen in:

 
 
 
 

492. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

494. The zygospore in Rhizopus on germination forms:

 
 
 
 

495. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

497. Which of the following are included in Tracheophyta?

 
 
 
 

498. The sporangiophores in Rhizopus are:

 
 
 
 

499. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

501. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

505. In Gymnocarpeae the fruiting body is :

 
 
 
 

506. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

509. The smallest unit of classification is:

 
 
 
 

510. The most primitive vascular plants is:

 
 
 
 

511. Spermatophyta are characterized by producing:

 
 
 
 

512. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. Pinus microsporophyll bears:

 
 
 
 

516. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

519. Virion refers to:

 
 
 
 

520. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

522. Pollination in Pinus is :

 
 
 
 

523. Lichens show :

 
 
 
 

524. Cycas is similar to a mustard plant :

 
 
 
 

525. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

527. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

529. One of the distinctive feature of Spirogyra is :

 
 
 
 

530.

531. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

533.

534. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

536. Bacteria are placed under:

 
 
 
 

537. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

539. 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:

 
 
 
 

540. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

542. Bacteria differ from viruses in being sensitive to:

 
 
 
 

543. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

545. Red rot of sugarcane is caused by :

 
 
 
 

546. Roots are absent in :

 
 
 
 

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

 
 
 
 

548. Chemosynthetic bacteria are:

 
 
 
 

549. Climbers are found in genus:

 
 
 
 

550. In moss, conducting tissue is made up of

 
 
 
 

551. Mucilaginous canals in Cycas are found in :

 
 
 
 

552. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

554. The sporophyte of Riccia is :

 
 
 
 

555. Which is a redwood tree?

 
 
 
 

556. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

558. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

561. Clostridium can:

 
 
 
 

562. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

564. Among the algae kelps are :

 
 
 
 

565. The fungi that grow on wood are called:

 
 
 
 

566. Oswald Tippo’s classification is:

 
 
 
 

567. Winged seeds are found in :

 
 
 
 

568. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

570. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

571. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

575. Sexual reproduction in Rhizopus is by:

 
 
 
 

576. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

580. Cycas is :

 
 
 
 

581. The development of Selaginella embryo is:

 
 
 
 

582. The fungi are usually:

 
 
 
 

583. Which is an edible fungus?

 
 
 
 

584. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

587. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

589. The archegonia of Selaginella are differentiated by:

 
 
 
 

590. The spur of Pinus roxburghii has :

 
 
 
 

591. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

593. Diphtheria is caused by:

 
 
 
 

594. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

596. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

598. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

600. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

604. Total parasites belong to:

 
 
 
 

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

 
 
 
 

606. Pythium debaryanum is the causative agent of:

 
 
 
 

607. Heterocysts are found in :

 
 
 
 

608. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

611. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

613. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

618. Fern prothallus is:

 
 
 
 

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

 
 
 
 

620. Cap cells are found in the filament of:

 
 
 
 

621. Tautonyms are illegitimate in:

 
 
 
 

622. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

626. Aflatoxin is produced as a product in :

 
 
 
 

627. Anoxygenic photosynthesis occurs in:

 
 
 
 

628. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

630. Mixed cropping helps :

 
 
 
 

631. Antibiotic has been extracted from :

 
 
 
 

632. What is special feature of fern archegonia?

 
 
 
 

633. Which of the following is true for viruses?

 
 
 
 

634. In binomial system most of the words are:

 
 
 
 

635. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

638. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

641. Which among the following is a shrub?

 
 
 
 

642. Club moss is the common name of :

 
 
 
 

643. 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?

 
 
 
 

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

 
 
 
 

645. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

647. Which is a gametophytic tissue?

 
 
 
 

648. The antherozoids of Funaria are :

 
 
 
 

649. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

651. Protistan algae obtain their food as:

 
 
 
 

652. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

655. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

657. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

662. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

664. Black rust of wheat is caused by:

 
 
 
 

665. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

667. Some biologists have used the term Mycetozoa for:

 
 
 
 

668. Viroids have:

 
 
 
 

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

 
 
 
 

670. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

673. In dinoflagellates, the two flagella are:

 
 
 
 

674. The young leaves of Cycas have :

 
 
 
 

675. The antibiotic is obtained from:

 
 
 
 

676. Sexual reproduction of lichen is due to :

 
 
 
 

677. Penicillin was discovered by:

 
 
 
 

678. Nitrogen-fixing bacteria may be located:

 
 
 
 

679. The leafy fern plant represents the:

 
 
 
 

680. Pinus is:

 
 
 
 

681. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. Early blight of potato is caused by:

 
 
 
 

687. Black rust of wheat is caused by:

 
 
 
 

688. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

691. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

692. Water-borne bacterial diseases are:

 
 
 
 

693. Which of the following is sago palm?

 
 
 
 

694. The megaspore of Selaginella on germination produces:

 
 
 
 

695. Cell walls of Gram-positive bacteria contain:

 
 
 
 

696. Selaginella differs from Moss in having:

 
 
 
 

697. Isomorphic type alternation of generation is found in:

 
 
 
 

698. Banana bunchy top is caused by :

 
 
 
 

699. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

701. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

703. Cyanophage is a virus that attacks:

 
 
 
 

704. All protozoans possess:

 
 
 
 

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

 
 
 
 

706. The disease symptom necrosis refers to :

 
 
 
 

707. Which of the following is a monocot?

 
 
 
 

708. Helotism word is used for the symbiosis between :

 
 
 
 

709. 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?

 
 
 
 

710. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. In moss, reduction division occurs in :

 
 
 
 

715. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

717. 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?

 
 
 
 

718. Interferon is a:

 
 
 
 

719. The lambda phase is a:

 
 
 
 

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

 
 
 
 

721. The chief characteristic of class Ascomycetes is:

 
 
 
 

722. Ergot of rye is caused by:

 
 
 
 

723. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

725. The coralloid roots are :

 
 
 
 

726. Which of the following applies to Selaginella?

 
 
 
 

727. Embryophyta includes :

 
 
 
 

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

 
 
 
 

729. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

732. The leaves of Funaria are :

 
 
 
 

733. Embryo formation is not known in :

 
 
 
 

734. The bacterial decomposition of nitrogenous organic compounds in the absence of abundant oxygen usually results in the formation of substances of offensive odor, chiefly sulfur compounds. Such anaerobic decomposition is called:

 
 
 
 

735. Wine turns sour because of:

 
 
 
 

736. Standard size of a herbarium sheet is:

 
 
 
 

737. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

740. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

743. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

746. The seedless plants which possess vascular tissues are:

 
 
 
 

747. Little leaf disease of Brinjal is caused by:

 
 
 
 

748. Spores of which plants have chloroplast:

 
 
 
 

749. What is streptomycin?

 
 
 
 

750. Penicillin is obtained from:

 
 
 
 

751. Milk is converted to curd by:

 
 
 
 

752. The Rhizopus is:

 
 
 
 

753. Lichens form the first community in

 
 
 
 

754. Most primitive group of vascular plants are:

 
 
 
 

755. Smut of maize is caused by :

 
 
 
 

756. Typhoid in man is caused by:

 
 
 
 

757. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

760. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

762. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

763. Diploxylic vascular bundles are found in:

 
 
 
 

764. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

767. Reproduction in Cycas takes place by :

 
 
 
 

768. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. Seeds are characteristically found in:

 
 
 
 

772. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

776. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

779. Rhizophore of Selaginella is:

 
 
 
 

780. Centric discoid form of diatom is:

 
 
 
 

781. Linnaeus is credited with introducing:

 
 
 
 

782. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

786. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

788. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

790. Lichens reproduce by :

 
 
 
 

791. Disease resistant plant varieties can be produced by :

 
 
 
 

792. Saccharomyces ludwigii ascus produces:

 
 
 
 

793. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

795. Which is an exception to cell theory?

 
 
 
 

796. Amoeba is a member of the phylum:

 
 
 
 

797. The plants of Funaria grow :

 
 
 
 

798. Cycas revoluta is widely grown as :

 
 
 
 

799. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

801. In Funaria, calyptra is derived from :

 
 
 
 

802. Which one of the following statement is wrong?

 
 
 
 

803. In Cycas:

 
 
 
 

804. Funaria are commonly found :

 
 
 
 

805. The tree fern is:

 
 
 
 

806. In moss, stomata are found:

 
 
 
 

807. Liverworts are included in :

 
 
 
 

808. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

811. The prothallus of fern represents the plant:

 
 
 
 

812. In Pteris, the roots are:

 
 
 
 

813. Some bacteria cannot be killed easily because of:

 
 
 
 

814. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

817. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

821. Bentham and Hooker placed gymnosperms:

 
 
 
 

822. . Tapetum develops in:

 
 
 
 

823. Cleavage polyembryony is found in :

 
 
 
 

824. Chief constituents of bordeaux mixture are :

 
 
 
 

825. Enteric bacteria are those bacteria that live:

 
 
 
 

826. Meiosis in Ulothrix takes place:

 
 
 
 

827. In tracheophyta:

 
 
 
 

828. Coenogamete is found in:

 
 
 
 

829. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

831. Cellular slime mold is:

 
 
 
 

832. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

834. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

836. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

841. The fern plant is:

 
 
 
 

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

 
 
 
 

843. Psilotum is:

 
 
 
 

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

 
 
 
 

845. What is mycorrhiza?

 
 
 
 

846. Reserve food in Euglena is:

 
 
 
 

847. 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:

 
 
 
 

848. Citrus canker is caused by:

 
 
 
 

849. Placenta in fern is:

 
 
 
 

850. Each chloroplast in Spirogyra bears :

 
 
 
 

851. Which of the following is a heterosporous pteridophyte?

 
 
 
 

852. Cryptogams include :

 
 
 
 

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

 
 
 
 

854. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

860. Lichens are pioneers of vegetation in a :

 
 
 
 

861. Germination of the seed of Pinus is :

 
 
 
 

862. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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