Quiz_Random

1. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

3. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

8. Spores of which plants have chloroplast:

 
 
 
 

9. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

11. The megaspore of Selaginella on germination produces:

 
 
 
 

12. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

14. Which of the following is a monocot?

 
 
 
 

15. Rhizopus belongs to:

 
 
 
 

16. Water bloom is generally caused by :

 
 
 
 

17. Bacteria are placed under:

 
 
 
 

18. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

20. Botulism is a:

 
 
 
 

21. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

34. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

42. Pinus is:

 
 
 
 

43. In Cycas which structure is equivalent to stamen?

 
 
 
 

44. Pythium debaryanum is the causative agent of:

 
 
 
 

45. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

47. Who discovered streptomycin?

 
 
 
 

48. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. How a fern differs from a moss?

 
 
 
 

55. Roots are absent in :

 
 
 
 

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

 
 
 
 

57. In Funaria, calyptra is derived from :

 
 
 
 

58. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

60. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Proembryo in Pinus is :

 
 
 
 

64. Ovules are not found enclosed in ovary in :

 
 
 
 

65. An Hfr bacterium is one that contains:

 
 
 
 

66. The archegonia in Selaginella develop on:

 
 
 
 

67. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. Which is the nuclear material in bacteria?

 
 
 
 

73. Which of the following lichens is harmful?

 
 
 
 

74.

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

 
 
 
 

76. Anoxygenic photosynthesis occurs in:

 
 
 
 

77. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

82. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

84. Botulinum toxin effects:

 
 
 
 

85. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

87. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Fern plants are:

 
 
 
 

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

 
 
 
 

92. In Pteris, the archegonia are present:

 
 
 
 

93. Sometimes the bacterial cell is enclosed in:

 
 
 
 

94. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

96. In Cycas:

 
 
 
 

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

 
 
 
 

98. Cocci types of bacteria are:

 
 
 
 

99. Discovery of penicillin was based on:

 
 
 
 

100. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

102. Funaria is :

 
 
 
 

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

 
 
 
 

104. Enzymes are absent in:

 
 
 
 

105. Transfusion tissue is present in the leaflet of:

 
 
 
 

106. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

108. Ulothrix produces :

 
 
 
 

109.

 

110. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

112. The smallest unit of classification is:

 
 
 
 

113. Linnaeus is credited with introducing:

 
 
 
 

114. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

117. 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:

 
 
 
 

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

 
 
 
 

119. Azolla growing in paddy fields helps in:

 
 
 
 

120. The young leaves of Cycas have :

 
 
 
 

121. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

123. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

125. Nannandria are:

 
 
 
 

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

 
 
 
 

127. Leprosy is caused by:

 
 
 
 

128. Select the wrong statement:

 
 
 
 

129. Banana bunchy top is caused by :

 
 
 
 

130. The sporangium of fern contains nearly:

 
 
 
 

131. Lichens are the indicator of pollution :

 
 
 
 

132. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

134. Metulae are found in:

 
 
 
 

135. Which fixes atmospheric nitrogen?

 
 
 
 

136. 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?

 
 
 
 

137. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

139. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

144. Mycoplasma are sensitive to:

 
 
 
 

145. Water-borne bacterial diseases are:

 
 
 
 

146. Late blight of potato is caused by:

 
 
 
 

147. What are plasmids?

 
 
 
 

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

 
 
 
 

149. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

154. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. In tracheophyta:

 
 
 
 

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

 
 
 
 

159. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

160. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

162. Plasmids are:

 
 
 
 

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

 
 
 
 

164. Rhizoids of Riccia are :

 
 
 
 

165. Pinus gerardiana is :

 
 
 
 

166. Meristele of fern is:

 
 
 
 

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

 
 
 
 

168. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

170. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

174. The truncated cone of HIV consists of:

 
 
 
 

175. Standard size of a herbarium sheet is:

 
 
 
 

176. Rhizophore of Selaginella is:

 
 
 
 

177. Ovules are not found enclosed in ovary in :

 
 
 
 

178. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

180. Ovules are not found enclosed in ovary of:

 
 
 
 

181. How is moss different from fern?

 
 
 
 

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

 
 
 
 

183. Methanogens belong to:

 
 
 
 

184. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

188. Chemosynthetic bacteria are:

 
 
 
 

189. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

192. The two conjugating gametangia of Rhizopus are:

 
 
 
 

193. Facultative parasite is:

 
 
 
 

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

 
 
 
 

195. Who among the following discovered virus?

 
 
 
 

196. Redness of red sea is due to :

 
 
 
 

197. Which of the following is true for viruses?

 
 
 
 

198. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

201. Bacteria are considered to be plants because they:

 
 
 
 

202. The fungi that grow on wood are called:

 
 
 
 

203. Lichen show :

 
 
 
 

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

 
 
 
 

205. Aflatoxin is produced by:

 
 
 
 

206. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

208. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

210. Ovary is absent in:

 
 
 
 

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

 
 
 
 

212. The fungi used as food are:

 
 
 
 

213. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

215. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

217. The group algae possesses representatives belonging to kingdom:

 
 
 
 

218. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

220. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

221. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. The leafy fern plant represents the:

 
 
 
 

226. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

227. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

230. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

233. The gametophyte produced by apospory is :

 
 
 
 

234. Virion refers to:

 
 
 
 

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

 
 
 
 

236. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

238. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

240. Which of the following statements is not correct?

 
 
 
 

241. Total parasites belong to:

 
 
 
 

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

 
 
 
 

243. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

246. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

248. In Selaginella, the microsporangia are:

 
 
 
 

249. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

251. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

253. Lichens are ecologically important because :

 
 
 
 

254. Mycoplasma was discovered by:

 
 
 
 

255. Reserve food in Euglena is:

 
 
 
 

256. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

259. Saccharomyces is well known for:

 
 
 
 

260. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

264. Heterotrichous habit means :

 
 
 
 

265. LSD is:

 
 
 
 

266. Absorptive nutrition is:

 
 
 
 

267. Black rust of wheat is caused by:

 
 
 
 

268. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

270. The leaves of Funaria are :

 
 
 
 

271. Most common type of conjugation in Spirogyra is :

 
 
 
 

272. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

276. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

278. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

280. Which lichen is called Reindeer moss?

 
 
 
 

281. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

283. 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?

 
 
 
 

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

 
 
 
 

285. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

287. Generic name of mango is:

 
 
 
 

288. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

290. Sexual reproduction in Rhizopus is by:

 
 
 
 

291. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

294. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

296. To which class Riccia belongs :

 
 
 
 

297. Meiosis in Ulothrix takes place:

 
 
 
 

298. The tree fern is:

 
 
 
 

299. In moss, sporophyte is formed on:

 
 
 
 

300. In a bacteriophage, DNA is present in:

 
 
 
 

301. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

302. Ethylene oxide is widely used to:

 
 
 
 

303. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

305. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. The microsporophylls on the cone of Cycas are :

 
 
 
 

310. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

314. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

316. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. Most of the lichens are composed of :

 
 
 
 

320. The lambda phase is a:

 
 
 
 

321. Small epidermal swellings due to infection are called :

 
 
 
 

322. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

324. Which is not found in bacteria?

 
 
 
 

325. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

328. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

330. Which part of Riccia bears nurse cells?

 
 
 
 

331. The antibiotic is obtained from:

 
 
 
 

332. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

337. Bacteria differ from viruses in being sensitive to:

 
 
 
 

338. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

342. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

344. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

347. Lichens form the first community in

 
 
 
 

348. Yeast grows more rapidly in:

 
 
 
 

349. Azolla and Salvinia both are:

 
 
 
 

350. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

354. The DNA of E coli is:

 
 
 
 

355. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

356. What is absent in Deuteromycetes?

 
 
 
 

357. The fern plant is:

 
 
 
 

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

 
 
 
 

359. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

361. Smallpox is caused by:

 
 
 
 

362. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

365. Which statement is wrong in regard to bacteria?

 
 
 
 

366. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

368. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

370. Helotism word is used for the symbiosis between :

 
 
 
 

371. Cyanophage is a virus that attacks:

 
 
 
 

372. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

375. Lichens reproduce by :

 
 
 
 

376. The first to isolate a plant virus was:

 
 
 
 

377. Heterosporous pteridophytes always form:

 
 
 
 

378. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

380. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

382. Which of the following is true for Selaginella?

 
 
 
 

383. Red rot of sugarcane is caused by :

 
 
 
 

384. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

385. Polystelic condition is found in:

 
 
 
 

386. Which is absent from the xylem of Cycas?

 
 
 
 

387. A gill of Agaricus:

 
 
 
 

388. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

390. Male gametophyte of Selaginella is found:

 
 
 
 

391. In Herpes virus DNA is:

 
 
 
 

392. Halophiles are the bacteria that require for growth:

 
 
 
 

393. Club moss and Peat moss belong to:

 
 
 
 

394. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

399. Desired type of Cycas can be grown by:

 
 
 
 

400. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

402. Which bacteria convert nitrate into nitrogen?

 
 
 
 

403. What is mycorrhiza?

 
 
 
 

404. Protozoans are considered animals because these are:

 
 
 
 

405. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

408. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

410. Cycas plant in appearance resembles :

 
 
 
 

411. Embryophyta includes :

 
 
 
 

412. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

415. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

417. The stele of Dryopteris is a:

 
 
 
 

418. Which is a gametophytic tissue?

 
 
 
 

419. Streptomyces falls under:

 
 
 
 

420. Who named prion?

 
 
 
 

421. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

423. Climbers are found in genus:

 
 
 
 

424. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

427. Disease resistant plant varieties can be produced by :

 
 
 
 

428. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

430. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

432. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

434. The sexual reproductive organs in Rhizopus are:

 
 
 
 

435. Germination of the seed of Pinus is :

 
 
 
 

436. The nucleus of bacteria is:

 
 
 
 

437. The chloroplast of Chlamydomonas are:

 
 
 
 

438. Fairy ring is the name given to:

 
 
 
 

439. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

441. Little leaf disease of Brinjal is caused by:

 
 
 
 

442. One of the distinctive feature of Spirogyra is :

 
 
 
 

443. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

446. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

448. Antibiotic has been extracted from :

 
 
 
 

449. The upper region of moss capsule is :

 
 
 
 

450. The source of litmus is :

 
 
 
 

451. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

453. The roots of Cycas are :

 
 
 
 

454. Water-net is the name of:

 
 
 
 

455. Who discovered cyanophages?

 
 
 
 

456.

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

 
 
 
 

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

 
 
 
 

459. The role of meiosis is for:

 
 
 
 

460. Pasteurized milk is:

 
 
 
 

461. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. The largest alga is:

 
 
 
 

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

 
 
 
 

468. The term stele was given by:

 
 
 
 

469. Woody climbers are known as :

 
 
 
 

470. Select the wrong statement:

 
 
 
 

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

 
 
 
 

472. Which of the following is a heterosporous pteridophyte?

 
 
 
 

473. . Tapetum develops in:

 
 
 
 

474. Which is an edible fungus?

 
 
 
 

475. The central part of Funaria axis is :

 
 
 
 

476. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

478. Pasteurization of milk involves heating for:

 
 
 
 

479. Interferon is a:

 
 
 
 

480. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

482. Bryophyta have a special character from other plants:

 
 
 
 

483. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

485. Saccharomyces ludwigii ascus produces:

 
 
 
 

486. Clostridium can:

 
 
 
 

487. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

490. Siphonogamy is found in:

 
 
 
 

491. The ferns are usually found:

 
 
 
 

492. 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:

 
 
 
 

493. Downy mildew disease is caused by :

 
 
 
 

494. Which of the following shows heterotrichous habit?

 
 
 
 

495. The rhizoids of Funaria are :

 
 
 
 

496. The middle sterile part of capsule is called:

 
 
 
 

497. Liverworts are included in :

 
 
 
 

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

 
 
 
 

499. Ergot of rye is caused by:

 
 
 
 

500. Cycas revoluta is widely grown as :

 
 
 
 

501. What is streptomycin?

 
 
 
 

502. Endemic plants are characterised by their:

 
 
 
 

503. Germ theory of disease was proposed by:

 
 
 
 

504. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. Soil fertility is lost by the activities of:

 
 
 
 

508. Triple antigen injection or vaccine are for:

 
 
 
 

509. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

513. Fertility of the soil is increased by:

 
 
 
 

514. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

517. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

520. Bacteriophages have been used as:

 
 
 
 

521. Common phycobiont in a lichen is :

 
 
 
 

522. Black rust of wheat is caused by:

 
 
 
 

523. In Gymnosperms endosperm is a:

 
 
 
 

524. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

525. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

527. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

530. Rice, pea, potato are :

 
 
 
 

531. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

533. All archaebacteria lack:

 
 
 
 

534. Acellular slime mold is/are:

 
 
 
 

535. 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?

 
 
 
 

536. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

540. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

545. Green plants are classified as:

 
 
 
 

546. Which is the correct statement about Selaginella?

 
 
 
 

547. The sporophyte of Riccia is :

 
 
 
 

548. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

549. Cyathia is characterized by:

 
 
 
 

550. Quarantine regulations are concerned with:

 
 
 
 

551. Sleeping sickness disease in man is caused by:

 
 
 
 

552. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

555. Fruits are not found in Cycas because:

 
 
 
 

556. Pollination in Cycas takes place by :

 
 
 
 

557. Reproduction in Cycas takes place by :

 
 
 
 

558. In Pteris, the roots are:

 
 
 
 

559. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

560. The alga, Spirogyra are found in :

 
 
 
 

561. The sporophyte of Riccia is represented by :

 
 
 
 

562. Fern prothallus is:

 
 
 
 

563. The Rhizopus is:

 
 
 
 

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

 
 
 
 

565. Chemosynthetic bacteria are:

 
 
 
 

566. Psilotum is:

 
 
 
 

567. Cycas is :

 
 
 
 

568. The root nodules of leguminous plants contain:

 
 
 
 

569. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

571. Ergot is obtained from :

 
 
 
 

572. In Cycas the fertilization is:

 
 
 
 

573. Club moss is the common name of :

 
 
 
 

574. Detailed study of bacteriophage was made by:

 
 
 
 

575. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

582. 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?

 
 
 
 

583. Protistan algae obtain their food as:

 
 
 
 

584. Spermatophyta are characterized by producing:

 
 
 
 

585. Which is a fungicide?

 
 
 
 

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

 
 
 
 

587. Who discovered heterothallism in fungi?

 
 
 
 

588. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

590. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

591. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

596. Bryophyta have been placed in cryptogams because:

 
 
 
 

597. Where does meiosis occur in yeast?

 
 
 
 

598. Pneumonia is caused by:

 
 
 
 

599. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

602. Cryptogams include :

 
 
 
 

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

 
 
 
 

604. Heterospory and ligulate leaves are a feature of:

 
 
 
 

605. Longest known virus is:

 
 
 
 

606. Green plants are classified as :

 
 
 
 

607. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

609. Most of the algae are :

 
 
 
 

610. In between the sex organs of Funaria are found a number of hair-like structures which 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 of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

614. Which is an exception to cell theory?

 
 
 
 

615. Choose the correct statement about Spirogyra:

 
 
 
 

616. Rhizopus and yeast are usually:

 
 
 
 

617. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

619. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

622. All protozoans possess:

 
 
 
 

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

 
 
 
 

624. Aflatoxin is produced as a product in :

 
 
 
 

625. Pollination drop is:

 
 
 
 

626. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

629. Which causes red tide?

 
 
 
 

630. Which of the following is a parasitic algae?

 
 
 
 

631. The development of Selaginella embryo is:

 
 
 
 

632. The leaf of Cycas shows:

 
 
 
 

633. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

639. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. Broad spectrum antibiotic is, which:

 
 
 
 

644. Gram stain is used to:

 
 
 
 

645. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

647. Mycoplasma is different from bacteria due to:

 
 
 
 

648. Lichens are pioneers of vegetation in a :

 
 
 
 

649. Milk is converted to curd by:

 
 
 
 

650. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

652. Nitrogen-fixing bacteria may be located:

 
 
 
 

653. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

655. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

660. Penicillin was discovered by:

 
 
 
 

661. Fruits are not found in :

 
 
 
 

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

 
 
 
 

663. The lichens growing on rocks are called :

 
 
 
 

664. Which of the following are included in Tracheophyta?

 
 
 
 

665. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

668. Sporophyte of fern is:

 
 
 
 

669. The zygospore in Rhizopus on germination forms:

 
 
 
 

670. Etiology includes the study of :

 
 
 
 

671. The megasporangium of Selaginella is:

 
 
 
 

672. Placenta in fern is:

 
 
 
 

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

 
 
 
 

674. Gametophyte is the main plant body in :

 
 
 
 

675. The most primitive vascular plants is:

 
 
 
 

676. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

678. True sexuality is not found in:

 
 
 
 

679. What is a vector?

 
 
 
 

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

 
 
 
 

681. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

685. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

687. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

689. Heterospory is the production of:

 
 
 
 

690. Cycas is similar to a mustard plant :

 
 
 
 

691. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

693. Which of the following is sago palm?

 
 
 
 

694. Yeast is a source of:

 
 
 
 

695. NBG of Lucknow is now named as:

 
 
 
 

696. The chief characteristic of class Ascomycetes is:

 
 
 
 

697. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

700. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

702. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

704. Vascular cryptogams is the term used for:

 
 
 
 

705. The archegonia of Selaginella are differentiated by:

 
 
 
 

706. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

710. Coenogamete is found in:

 
 
 
 

711. Which of the following have algal zone?

 
 
 
 

712. Which is a tautonym?

 
 
 
 

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

 
 
 
 

714. The spermatozoids of Cycas are :

 
 
 
 

715. Pasteur is famous for his:

 
 
 
 

716. What is special feature of fern archegonia?

 
 
 
 

717. The mode of nutrition of bacteria is usually:

 
 
 
 

718. The fungi are mostly:

 
 
 
 

719. Selaginella differs from Moss in having:

 
 
 
 

720. In Cycas microsporangia are borne on:

 
 
 
 

721. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

723. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. The smallest bacterium is:

 
 
 
 

727. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

729. Reproduction in Rhizopus is:

 
 
 
 

730. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

732. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

735. The gametophyte of fern is as:

 
 
 
 

736. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

738. Embryophyta includes:

 
 
 
 

739. 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:

 
 
 
 

740. Mycoplasma are:

 
 
 
 

741. In moss, peristomial teeth are:

 
 
 
 

742. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

744. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

746. Select the correct statement: (NEET 2016)

 
 
 
 

747. All algae have:

 
 
 
 

748. In Funaria :

 
 
 
 

749. Which condition is found in Cycas?

 
 
 
 

750. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

752. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

754.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

758. Fern prothallus produces:

 
 
 
 

759. Pseudomycelium is found in:

 
 
 
 

760. Which one of the following is a monocot?

 
 
 
 

761. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

763. The prothallus of fern is:

 
 
 
 

764. E coli is a:

 
 
 
 

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

 
 
 
 

766. 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:

 
 
 
 

767. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

769. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

771. 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:

 
 
 
 

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

 
 
 
 

773. The order generally ends with:

 
 
 
 

774. Majority of lichens are :

 
 
 
 

775. Each chloroplast in Spirogyra bears :

 
 
 
 

776. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

779. Which is not true for Escherichia coli?

 
 
 
 

780. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. The fungi are usually:

 
 
 
 

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

 
 
 
 

786. The gametophyte of fern bears:

 
 
 
 

787. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

790. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

796. Gymnosperms could also be called as:

 
 
 
 

797. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

799. Typhoid in man is caused by:

 
 
 
 

800. Cycas is:

 
 
 
 

801. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

802. Iodine is obtained from:

 
 
 
 

803. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

806. Sporophyte of Funaria is :

 
 
 
 

807. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

810. The seedless plants which possess vascular tissues are:

 
 
 
 

811. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

813. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

817. Photosynthetic bacteria have:

 
 
 
 

818. TMV was isolated in crystalline form by:

 
 
 
 

819. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

821. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

823. Fern phloem lacks:

 
 
 
 

824. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

826. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

831. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

836. Winged pollen grains are found in :

 
 
 
 

837. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

839. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

841. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

846. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

849. Mucilaginous canals in Cycas are found in :

 
 
 
 

850. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

852. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

854. Maximum diversity of life forms occurs in :

 
 
 
 

855. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

859. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

860. Facultative saprophyte is:

 
 
 
 

861. Among the algae kelps are :

 
 
 
 

862. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

864. In a diplontic life cycle: