Quiz_Random

1. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. Soil fertility is lost by the activities of:

 
 
 
 

5. Funaria is :

 
 
 
 

6. Usually, bacteria reproduce by:

 
 
 
 

7. Anoxygenic photosynthesis occurs in:

 
 
 
 

8. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

10. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

12. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

18. Linnaeus is credited with introducing:

 
 
 
 

19. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Spermatophyta are characterized by producing:

 
 
 
 

23. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

31. Penicillin was discovered by:

 
 
 
 

32. 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:

 
 
 
 

33. In moss, sporophyte is formed on:

 
 
 
 

34. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

36. Pasteur is famous for his:

 
 
 
 

37. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

44. The leafy fern plant represents the:

 
 
 
 

45. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

47. Pollination drop is:

 
 
 
 

48. Heterospory and ligulate leaves are a feature of:

 
 
 
 

49. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

50. Saccharomyces ludwigii ascus produces:

 
 
 
 

51. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Rhizophore of Selaginella is:

 
 
 
 

57.

58. Mycoplasma are:

 
 
 
 

59. The smallest bacterium is:

 
 
 
 

60. Plasmids are:

 
 
 
 

61. Aflatoxin is produced as a product in :

 
 
 
 

62. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Kuru, a human disease is caused by:

 
 
 
 

66. Viruses have:

 
 
 
 

67. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

69. Absorptive nutrition is:

 
 
 
 

70. Embryophyta includes:

 
 
 
 

71. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

73. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Protistan algae obtain their food as:

 
 
 
 

77. Iodine is obtained from:

 
 
 
 

78. Mycoplasmas are not viruses in nature because:

 
 
 
 

79. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

80. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

82. Black rust of wheat is caused by:

 
 
 
 

83. Ectocarpus produces:

 
 
 
 

84. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

92. Which of the following lichens is harmful?

 
 
 
 

93. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

97. Heterotrichous habit means :

 
 
 
 

98. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. Late blight of potato is caused by :

 
 
 
 

102. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

104. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

108. The archegonia in Selaginella develop on:

 
 
 
 

109. The fungi are mostly:

 
 
 
 

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

 
 
 
 

111.

 

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

 
 
 
 

113. Spermatophyta are characterized by producing:

 
 
 
 

114. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

116. Nitrogen-fixing bacteria may be located:

 
 
 
 

117. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

119. Proembryo in Pinus is :

 
 
 
 

120. The upper region of moss capsule is :

 
 
 
 

121. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

125. The orders generally have the uniform endings:

 
 
 
 

126. Penicillin is obtained from:

 
 
 
 

127. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

129. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

131. Pasteurized milk is:

 
 
 
 

132. In Funaria :

 
 
 
 

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

 
 
 
 

134. Reproduction in Cycas takes place by :

 
 
 
 

135. All algae have:

 
 
 
 

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

 
 
 
 

137. Viroids have:

 
 
 
 

138. The Rhizopus gametes are formed in:

 
 
 
 

139. In moss, sporogenous tissue arises from:

 
 
 
 

140. Bacteria differ from viruses in being sensitive to:

 
 
 
 

141. Cryptogams include :

 
 
 
 

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

 
 
 
 

143. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

147. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

149. Longest known virus is:

 
 
 
 

150. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

154. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

155. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

157. Protists which are diploid reproduce sexually by:

 
 
 
 

158. Most resistant spore in bacteria is:

 
 
 
 

159. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. The first to isolate a plant virus was:

 
 
 
 

163. Indusium in Dryopteris is:

 
 
 
 

164. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

166. The tree fern is:

 
 
 
 

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

 
 
 
 

168. Lichens show :

 
 
 
 

169. Fern plants are:

 
 
 
 

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

 
 
 
 

171. The most primitive vascular plants is:

 
 
 
 

172. Lichen show :

 
 
 
 

173. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

175. Green plants are classified as :

 
 
 
 

176. Pythium debaryanum is the causative agent of:

 
 
 
 

177. The megasporangium of Selaginella is:

 
 
 
 

178. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

180. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

182. 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:

 
 
 
 

183. In angiosperms double fertilization represents:

 
 
 
 

184. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

186. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Ovules are not found enclosed in ovary in :

 
 
 
 

190. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

193. Bacteria were first discovered by:

 
 
 
 

194. The similarity between cyanobacteria and bacteria:

 
 
 
 

195. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

196. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

198. Methanogens belong to:

 
 
 
 

199. TMV was isolated in crystalline form by:

 
 
 
 

200. Club moss and Peat moss belong to:

 
 
 
 

201. The zygospore in Rhizopus on germination forms:

 
 
 
 

202. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

204. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

207. Mycoplasma are sensitive to:

 
 
 
 

208. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

211. E coli is a:

 
 
 
 

212. Banana bunchy top is caused by :

 
 
 
 

213. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

215. How is moss different from fern?

 
 
 
 

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

 
 
 
 

217. Vascular tissue is found in :

 
 
 
 

218. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

220. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

221. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

223. Which of the following is true for Selaginella?

 
 
 
 

224. Virus and bacteriophage are made-up of:

 
 
 
 

225. Tautonyms are illegitimate in:

 
 
 
 

226. Red rot of sugarcane is caused by :

 
 
 
 

227. Pollination in Cycas takes place by :

 
 
 
 

228. Lichens are pioneers of vegetation in a :

 
 
 
 

229. Which is not true for Escherichia coli?

 
 
 
 

230. Ethylene oxide is widely used to:

 
 
 
 

231. The tallest moss in the world is :

 
 
 
 

232. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. Which is a tautonym?

 
 
 
 

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

 
 
 
 

237. Lichens are ecologically important because :

 
 
 
 

238. Which of the following does not contain chlorophyll?

 
 
 
 

239. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

241. Milk is converted to curd by:

 
 
 
 

242. Sexual reproduction of lichen is due to :

 
 
 
 

243. Germ theory of disease was proposed by:

 
 
 
 

244. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

247. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. The plants of Funaria grow :

 
 
 
 

251. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

253. In tracheophyta:

 
 
 
 

254. Amoeba is a member of the phylum:

 
 
 
 

255. Most common type of conjugation in Spirogyra is :

 
 
 
 

256. Chemosynthetic bacteria are:

 
 
 
 

257. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

259. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

261. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

263. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

265. The source of litmus is :

 
 
 
 

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

 
 
 
 

267. Protozoans are considered animals because these are:

 
 
 
 

268. Most appropriate word for protozoans is:

 
 
 
 

269. Downy mildew disease is caused by :

 
 
 
 

270. Bacteria are placed under:

 
 
 
 

271. Pollination in Pinus is :

 
 
 
 

272. The antibiotic is obtained from:

 
 
 
 

273. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

274. Sporophyte of Funaria is :

 
 
 
 

275. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

277. The fungi that grow on wood are called:

 
 
 
 

278. In Gymnosperms endosperm is a:

 
 
 
 

279. Winged pollen grains are found in :

 
 
 
 

280. The megaspore of Selaginella on germination produces:

 
 
 
 

281. Cell walls of Gram-positive bacteria contain:

 
 
 
 

282. The fungi are usually:

 
 
 
 

283. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

285. Ovary is absent in :

 
 
 
 

286. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

291. Male gametophyte of Selaginella is found:

 
 
 
 

292. The alga, Spirogyra are found in :

 
 
 
 

293. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

298. The sporangia of Selaginella are attached:

 
 
 
 

299. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

302. Most primitive group of vascular plants are:

 
 
 
 

303. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

306. Mycoplasma was discovered by:

 
 
 
 

307. Which of the following is a parasitic algae?

 
 
 
 

308. Which is a redwood tree?

 
 
 
 

309. The group algae possesses representatives belonging to kingdom:

 
 
 
 

310. Selaginella differs from Moss in having:

 
 
 
 

311. What are plasmids?

 
 
 
 

312. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

314. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

315. Water bloom is generally caused by :

 
 
 
 

316. Nannandria are:

 
 
 
 

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

 
 
 
 

318. Heterosporous pteridophytes always form:

 
 
 
 

319. Club moss is the common name of :

 
 
 
 

320. Cycas is similar to a mustard plant :

 
 
 
 

321. Gymnosperms could also be called as:

 
 
 
 

322. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

324. Halophiles are the bacteria that require for growth:

 
 
 
 

325. Yeast is a source of:

 
 
 
 

326. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. Desired type of Cycas can be grown by:

 
 
 
 

336. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

339. The phloem of vascular system of Cycas is :

 
 
 
 

340. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

342. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

344. One of the distinctive feature of Spirogyra is :

 
 
 
 

345. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. Quarantine regulations are concerned with:

 
 
 
 

349. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

362. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

365. In moss, peristomial teeth are:

 
 
 
 

366. Cycas revoluta is widely grown as :

 
 
 
 

367. Placenta in fern is:

 
 
 
 

368. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

371. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

373. Spirogyra differs from moss protonema in having :

 
 
 
 

374. Ovules are not found enclosed in ovary of:

 
 
 
 

375. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

377. An Hfr bacterium is one that contains:

 
 
 
 

378. In Cycas microsporangia are borne on:

 
 
 
 

379. In Gymnocarpeae the fruiting body is :

 
 
 
 

380. Majority of lichens are :

 
 
 
 

381. Select the wrong statement:

 
 
 
 

382. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

384. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

386. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

388. In Pteris, the roots are:

 
 
 
 

389. First animal pathogenic virus was discovered by:

 
 
 
 

390. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

393. Siphonogamy is found in:

 
 
 
 

394. Seeds are characteristically found in:

 
 
 
 

395. Vegetative reproduction in Cycas is by means of :

 
 
 
 

396. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

400. To which class Riccia belongs :

 
 
 
 

401. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

403. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

405. Which class of Protozoa includes all parasitic forms?

 
 
 
 

406. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

408. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

410. Fertility of the soil is increased by:

 
 
 
 

411. Isomorphic type alternation of generation is found in:

 
 
 
 

412. Which of the following are included in Tracheophyta?

 
 
 
 

413. Photoautotrophic bacteria have:

 
 
 
 

414. Synzoospore is produced in:

 
 
 
 

415. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

418. Leaf spot of groundnut is caused by :

 
 
 
 

419. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

421. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

423. The ferns are usually found:

 
 
 
 

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

 
 
 
 

425. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

427. The nucleus of bacteria is:

 
 
 
 

428. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

430. Who discovered streptomycin?

 
 
 
 

431. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

432. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

435. Cleavage polyembryony is found in :

 
 
 
 

436. Gram stain is used to:

 
 
 
 

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

 
 
 
 

438. An alga which is rich in proteins:

 
 
 
 

439. Which lichen is called Reindeer moss?

 
 
 
 

440. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

443. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

445. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

446. Ulothrix produces :

 
 
 
 

447. The lambda phase is a:

 
 
 
 

448. Cellular slime mold is:

 
 
 
 

449. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

454. Seeds are characteristically found in :

 
 
 
 

455. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

460. Select the correct statement: (NEET 2016)

 
 
 
 

461. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

463. Acellular slime mold is/are:

 
 
 
 

464. Lichens are the indicator of pollution :

 
 
 
 

465. Detailed study of bacteriophage was made by:

 
 
 
 

466. The order generally ends with:

 
 
 
 

467. Lichens reproduce by :

 
 
 
 

468. Fruits are not found in :

 
 
 
 

469. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

470. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

472. Pinus gerardiana is :

 
 
 
 

473. The middle sterile part of capsule is called:

 
 
 
 

474. 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?

 
 
 
 

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

 
 
 
 

476. The chief characteristic of bryophyta is that :

 
 
 
 

477. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

479. Pinus microsporophyll bears:

 
 
 
 

480. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

482. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

483. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

487. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

489. The spur of Pinus roxburghii has :

 
 
 
 

490. Gametophyte is the main plant body in :

 
 
 
 

491. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

493. The largest known bacterium is:

 
 
 
 

494. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

496. Chemosynthetic bacteria are:

 
 
 
 

497. Centric discoid form of diatom is:

 
 
 
 

498. Chief constituents of bordeaux mixture are :

 
 
 
 

499. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

501. The development of Selaginella embryo is:

 
 
 
 

502. What is streptomycin?

 
 
 
 

503. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

505. Clostridium can:

 
 
 
 

506. Enteric bacteria are those bacteria that live:

 
 
 
 

507. The ascus of yeast contains:

 
 
 
 

508. Common phycobiont in a lichen is :

 
 
 
 

509. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

511. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

517. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

522. The prothallus of fern represents the plant:

 
 
 
 

523. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

525. The flagella of Chlamydomonas are:

 
 
 
 

526. All archaebacteria lack:

 
 
 
 

527. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

531. 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?

 
 
 
 

532. Which of the following shows heterotrichous habit?

 
 
 
 

533. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

535. 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:

 
 
 
 

536. The sporophyte of Riccia is represented by :

 
 
 
 

537. Which is the nuclear material in bacteria?

 
 
 
 

538. Pteridophytes are also known as :

 
 
 
 

539. Germination of the seed of Pinus is :

 
 
 
 

540. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. Aflatoxin is produced by:

 
 
 
 

544. NBG of Lucknow is now named as:

 
 
 
 

545. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

548. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

550. The seedless plants which possess vascular tissues are:

 
 
 
 

551. Facultative parasite is:

 
 
 
 

552. Bacteria growing on synthetic medium are called:

 
 
 
 

553. Green plants are classified as:

 
 
 
 

554. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

556. Water-net is the name of:

 
 
 
 

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

 
 
 
 

558. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

560. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

561. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

563. Select the wrong statement:

 
 
 
 

564. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. Meristele of fern is:

 
 
 
 

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

 
 
 
 

569. The disease apple scab is caused by:

 
 
 
 

570. The teeth of peristome of Funaria are :

 
 
 
 

571. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

577. Pasteurization of milk involves heating for:

 
 
 
 

578. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

581. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

583. The sporangium of fern contains nearly:

 
 
 
 

584. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

586. Transfusion tissue is present in the leaflet of:

 
 
 
 

587. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

589. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

591. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. What is a vector?

 
 
 
 

595. Mycoplasma contains:

 
 
 
 

596. Which of the following statement is correct?

 
 
 
 

597. Bacteriophage consists of:

 
 
 
 

598. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

600. Sleeping sickness disease in man is caused by:

 
 
 
 

601. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

604. All protozoans possess:

 
 
 
 

605. The term stele was given by:

 
 
 
 

606. 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:

 
 
 
 

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

 
 
 
 

608. The mode of nutrition of bacteria is usually:

 
 
 
 

609. Black rust of wheat is caused by:

 
 
 
 

610. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

612. Mucilaginous canals in Cycas are found in :

 
 
 
 

613. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. Red rot of sugarcane is caused by :

 
 
 
 

617. The gametophyte of fern is as:

 
 
 
 

618. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

620. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Which statement is wrong in regard to bacteria?

 
 
 
 

628. Metulae are found in:

 
 
 
 

629. Antibiotics cure the disease by:

 
 
 
 

630.

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

 
 
 
 

632. Which is an edible fungus?

 
 
 
 

633. Sometimes the bacterial cell is enclosed in:

 
 
 
 

634. Helotism word is used for the symbiosis between :

 
 
 
 

635. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

637. How a fern differs from a moss?

 
 
 
 

638. Generic name of mango is:

 
 
 
 

639. Bacteriophages have been used as:

 
 
 
 

640. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. LSD is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

646. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

649. Acetobacter is useful in:

 
 
 
 

650. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

652. Which organisms are the oldest life forms?

 
 
 
 

653. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. Total parasites belong to:

 
 
 
 

659. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

661. Choose the correct statement about Spirogyra:

 
 
 
 

662. Virion refers to:

 
 
 
 

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

 
 
 
 

664. The fungi used as food are:

 
 
 
 

665. 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?

 
 
 
 

666. The rhizoids of Funaria are :

 
 
 
 

667. Cocci types of bacteria are:

 
 
 
 

668. Embryophyta includes :

 
 
 
 

669. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. 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?

 
 
 
 

673. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

675. Which of the following are absent in Mycoplasma?

 
 
 
 

676. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

678. Which bacteria convert nitrate into nitrogen?

 
 
 
 

679. In a bacteriophage, DNA is present in:

 
 
 
 

680. The gametophyte of fern bears:

 
 
 
 

681. The sori in Dryopteris are found on:

 
 
 
 

682. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

684. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

686. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

689. 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:

 
 
 
 

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

 
 
 
 

691. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

692. Mostly type of zygospore in Ulothrix is:

 
 
 
 

693. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

695. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

704. Heterospory is the production of:

 
 
 
 

705. Streptomycin is obtained from:

 
 
 
 

706. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

708. Agar-agar is obtained from:

 
 
 
 

709. Mixed cropping helps :

 
 
 
 

710. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

712. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

714. Which of the following have algal zone?

 
 
 
 

715. Male gametes in Dryopteris are:

 
 
 
 

716. The roots of Cycas are :

 
 
 
 

717. Fruiting body of lichens is :

 
 
 
 

718. White rust of crucifers is caused by:

 
 
 
 

719. Genetic material of TMV is:

 
 
 
 

720. Iodine is obtained from :

 
 
 
 

721. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

724. The two conjugating gametangia of Rhizopus are:

 
 
 
 

725. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

727. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

732. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

737. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

739. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

741. The genetic material of poxvirus is:

 
 
 
 

742. Funaria is a Bryophyta because :

 
 
 
 

743. The root nodules of leguminous plants contain:

 
 
 
 

744. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

746. The role of meiosis is for:

 
 
 
 

747. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

749.

750. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

753. Bacteria which are spherical are called:

 
 
 
 

754. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Lichens form the first community in

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

762. The coralloid roots are :

 
 
 
 

763. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

767. The archegonia of Selaginella are differentiated by:

 
 
 
 

768. In moss, reduction division occurs in :

 
 
 
 

769. In Cycas:

 
 
 
 

770. The leaves of Funaria are :

 
 
 
 

771. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

773. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

775. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

778. Who discovered cyanophages?

 
 
 
 

779. Which among the following is a shrub?

 
 
 
 

780. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

782. Circular DNA is seen in:

 
 
 
 

783. Meiosis in Ulothrix takes place:

 
 
 
 

784. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

786. Saccharomyces is used in:

 
 
 
 

787. Simple polyembryony is found in :

 
 
 
 

788. The spermatozoids of Cycas are :

 
 
 
 

789. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. Which is a gametophytic tissue?

 
 
 
 

793. Interferon is a:

 
 
 
 

794. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

796. Ovary is absent in:

 
 
 
 

797. Which of the following is true for viruses?

 
 
 
 

798. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. John Hutchinson divided dicots into two divisions:

 
 
 
 

808. Funaria is :

 
 
 
 

809. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

811. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. Rhizopus and yeast are usually:

 
 
 
 

816. Botulism is a:

 
 
 
 

817. Bryophyta have a special character from other plants:

 
 
 
 

818. Cycas is:

 
 
 
 

819. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

821. Antibiotic has been extracted from :

 
 
 
 

822. The young leaves of Cycas have :

 
 
 
 

823. Which is absent from the xylem of Cycas?

 
 
 
 

824. Azolla growing in paddy fields helps in:

 
 
 
 

825. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

827. Bryophyta have been placed in cryptogams because:

 
 
 
 

828. Fern prothallus is:

 
 
 
 

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

 
 
 
 

830. Redness of red sea is due to :

 
 
 
 

831. Oswald Tippo’s classification was based on :

 
 
 
 

832. Most of the lichens are composed of :

 
 
 
 

833. Most of the algae are :

 
 
 
 

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

 
 
 
 

835. Who named prion?

 
 
 
 

836. The fern plant is:

 
 
 
 

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

 
 
 
 

838. Winged seeds are found in :

 
 
 
 

839. Liverworts are included in :

 
 
 
 

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

 
 
 
 

841. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

845. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

847. True sexuality is not found in:

 
 
 
 

848. Which fixes atmospheric nitrogen?

 
 
 
 

849. Early blight of potato is caused by:

 
 
 
 

850. Diploxylic vascular bundles are found in:

 
 
 
 

851. Psilotum is:

 
 
 
 

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

 
 
 
 

853. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

855. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

857. . Tapetum develops in:

 
 
 
 

858. Etiology includes the study of :

 
 
 
 

859. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. Pseudomycelium is found in:

 
 
 
 

864. The stele of Dryopteris is a: