Quiz_Random

1. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

6. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

7. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

11. The leaves of Funaria are :

 
 
 
 

12. Virus and bacteriophage are made-up of:

 
 
 
 

13. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. The coralloid roots are :

 
 
 
 

21. Which is absent from the xylem of Cycas?

 
 
 
 

22. The rhizoids of Funaria are :

 
 
 
 

23. Coenogamete is found in:

 
 
 
 

24. Select the wrong statement:

 
 
 
 

25. Winged seeds are found in :

 
 
 
 

26. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

28. Who named prion?

 
 
 
 

29. Green plants are classified as:

 
 
 
 

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

 
 
 
 

31. Which bacteria convert nitrate into nitrogen?

 
 
 
 

32. Citrus canker is caused by :

 
 
 
 

33. Which condition is found in Cycas?

 
 
 
 

34. Funaria is :

 
 
 
 

35. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

37. Cryptogams include :

 
 
 
 

38. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

40. Fairy ring is the name given to:

 
 
 
 

41. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Pollination drop is:

 
 
 
 

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

 
 
 
 

51. Meiosis in Ulothrix takes place:

 
 
 
 

52. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

63. Most primitive embryophytes are placed in:

 
 
 
 

64. Which of the following statements is not correct?

 
 
 
 

65. The ascus of yeast contains:

 
 
 
 

66. Oswald Tippo’s classification is:

 
 
 
 

67. In Gymnocarpeae the fruiting body is :

 
 
 
 

68. Vascular cryptogams is the term used for:

 
 
 
 

69. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

71. Typhoid in man is caused by:

 
 
 
 

72. In a diplontic life cycle:

 
 
 
 

73. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

75. Gymnosperms could also be called as:

 
 
 
 

76. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Embryophyta includes :

 
 
 
 

80. Pasteurized milk is:

 
 
 
 

81. 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:

 
 
 
 

82. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

84. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. The chloroplast of Chlamydomonas are:

 
 
 
 

93. Red rot of sugarcane is caused by :

 
 
 
 

94. The sporangium of fern contains nearly:

 
 
 
 

95. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

97. LSD is:

 
 
 
 

98. Club moss and Peat moss belong to:

 
 
 
 

99. The sporangia of Selaginella are attached:

 
 
 
 

100. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

104. Which of the following applies to Selaginella?

 
 
 
 

105. Mycoplasma is different from bacteria due to:

 
 
 
 

106. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

109. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

113. Botulinum toxin effects:

 
 
 
 

114. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

116. Enteric bacteria are those bacteria that live:

 
 
 
 

117. The roots of Cycas are :

 
 
 
 

118. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

123. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

125. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

126. In binomial system most of the words are:

 
 
 
 

127. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

129. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

132. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

135. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

137. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. Cap cells are found in the filament of:

 
 
 
 

142. Pteridophyta are also called:

 
 
 
 

143. Downy mildew disease is caused by :

 
 
 
 

144. In Funaria, calyptra is derived from :

 
 
 
 

145. The development of sporangium in Selaginella is:

 
 
 
 

146. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

147. Lichens are the indicator of pollution :

 
 
 
 

148. Choose the correct statement about Spirogyra:

 
 
 
 

149. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

152. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

156. Cycas revoluta is widely grown as :

 
 
 
 

157. The spur of Pinus roxburghii has :

 
 
 
 

158. Which of the following statement is correct?

 
 
 
 

159. The chromosomal number in:

 
 
 
 

160. The fern plant is:

 
 
 
 

161. Fertility of the soil is increased by:

 
 
 
 

162. Methanogens belong to:

 
 
 
 

163. Viruses are commonly transmitted in plants through:

 
 
 
 

164. Which organisms are the oldest life forms?

 
 
 
 

165. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

169. TMV was isolated in crystalline form by:

 
 
 
 

170. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

172. Photosynthetic protists belong to:

 
 
 
 

173. The plants of Funaria grow :

 
 
 
 

174. Reserve food in Euglena is:

 
 
 
 

175. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

178. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

180. Heterospory is the production of:

 
 
 
 

181. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

183. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

185. Water-borne bacterial diseases are:

 
 
 
 

186. Standard size of a herbarium sheet is:

 
 
 
 

187. Cyanophage is a virus that attacks:

 
 
 
 

188. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

189. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

190. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

191. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

195. The fungi that grow on wood are called:

 
 
 
 

196. Which is a redwood tree?

 
 
 
 

197. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. Fruits are not found in Cycas because:

 
 
 
 

205. Cocci types of bacteria are:

 
 
 
 

206. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

208. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

210. Pteridophytes are also known as :

 
 
 
 

211. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

214. The prothallus of fern is:

 
 
 
 

215. The fungi used as food are:

 
 
 
 

216. In Cycas which structure is equivalent to stamen?

 
 
 
 

217. Which is an exception to cell theory?

 
 
 
 

218. In Cycas microsporangia are borne on:

 
 
 
 

219. NBG of Lucknow is now named as:

 
 
 
 

220. Where does meiosis occur in yeast?

 
 
 
 

221. Plasmids are:

 
 
 
 

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

 
 
 
 

223. The mode of nutrition of bacteria is usually:

 
 
 
 

224. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

226. The sori in Dryopteris are found on:

 
 
 
 

227. Select the correct statement: (NEET 2016)

 
 
 
 

228. The upper region of moss capsule is :

 
 
 
 

229. The central part of Funaria axis is :

 
 
 
 

230. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

233. Rhizophore of Selaginella is:

 
 
 
 

234. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

236. Metulae are found in:

 
 
 
 

237. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

239. Late blight of potato is caused by :

 
 
 
 

240. Male gametophyte of Selaginella is found:

 
 
 
 

241. Sometimes the bacterial cell is enclosed in:

 
 
 
 

242. Embryo formation is not known in :

 
 
 
 

243.

244. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

246. In Cycas the fertilization is:

 
 
 
 

247. True sexuality is not found in:

 
 
 
 

248. Synzoospore is produced in:

 
 
 
 

249. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

251. How is moss different from fern?

 
 
 
 

252. Funaria is :

 
 
 
 

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

 
 
 
 

254. Most of the algae are :

 
 
 
 

255. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

259. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

261. Ovary is absent in :

 
 
 
 

262. The root nodules of leguminous plants contain:

 
 
 
 

263. Vascular tissue is found in :

 
 
 
 

264. Pinus is:

 
 
 
 

265. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

267. Winged pollen grains are found in :

 
 
 
 

268. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

270. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

276. Saccharomyces is used in:

 
 
 
 

277. Fruits are not found in :

 
 
 
 

278. Kuru, a human disease is caused by:

 
 
 
 

279. The leaf of Cycas shows:

 
 
 
 

280. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

286. Seeds are characteristically found in:

 
 
 
 

287. Banana bunchy top is caused by :

 
 
 
 

288. The Rhizopus is:

 
 
 
 

289. What is special feature of fern archegonia?

 
 
 
 

290. Who discovered heterothallism in fungi?

 
 
 
 

291. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

294. Genetic material of TMV is:

 
 
 
 

295. Spores of which plants have chloroplast:

 
 
 
 

296. Which have the largest antherozoid?

 
 
 
 

297. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

299. Cell walls of Gram-positive bacteria contain:

 
 
 
 

300. The nucleus of bacteria is:

 
 
 
 

301. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

304. Fruiting body of lichens is :

 
 
 
 

305. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

307. Total parasites belong to:

 
 
 
 

308. Lichens form the first community in

 
 
 
 

309. The disease symptom necrosis refers to :

 
 
 
 

310. In moss, sporogenous tissue arises from:

 
 
 
 

311. The role of meiosis is for:

 
 
 
 

312. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

316. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. Which of the following is a monocot?

 
 
 
 

320. Gram stain is used to:

 
 
 
 

321. Nitrogen-fixing bacteria may be located:

 
 
 
 

322. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

324. Mycoplasma was discovered by:

 
 
 
 

325. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

328. In moss, conducting tissue is made up of

 
 
 
 

329. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

338. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

340. Pinus microsporophyll bears:

 
 
 
 

341. Clostridium can:

 
 
 
 

342. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

345. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

347. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

349. Who discovered streptomycin?

 
 
 
 

350. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

351. Saccharomyces is well known for:

 
 
 
 

352. In Cycas:

 
 
 
 

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

 
 
 
 

354. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

355. The teeth of peristome of Funaria are :

 
 
 
 

356. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

358.

 

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

 
 
 
 

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

 
 
 
 

361. Lichens reproduce by :

 
 
 
 

362. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

367. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

370. Cycas is:

 
 
 
 

371. Acellular slime mold is/are:

 
 
 
 

372. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

375. Bacteria are found everywhere, except:

 
 
 
 

376. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

379. Mycoplasma are sensitive to:

 
 
 
 

380. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

382. Bryophyta have a special character from other plants:

 
 
 
 

383. Roots are absent in :

 
 
 
 

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

 
 
 
 

385. Meristele of fern is:

 
 
 
 

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

 
 
 
 

387. Sexual reproduction of lichen is due to :

 
 
 
 

388. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

390. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

394. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

396. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

398. Selaginella differs from Moss in having:

 
 
 
 

399. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

402. The gametophyte of moss has distinct phases :

 
 
 
 

403. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

406. The fungi are usually:

 
 
 
 

407. Germination of the seed of Pinus is :

 
 
 
 

408. Rhizopus and yeast are usually:

 
 
 
 

409. Reproduction in Cycas takes place by :

 
 
 
 

410. Liverworts are included in :

 
 
 
 

411. Discovery of penicillin was based on:

 
 
 
 

412. The genetic material of poxvirus is:

 
 
 
 

413. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. Fruits are not found in:

 
 
 
 

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

 
 
 
 

422. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

424. Lichen show :

 
 
 
 

425. The ferns are usually found:

 
 
 
 

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

 
 
 
 

427. Common phycobiont in a lichen is :

 
 
 
 

428. Majority of lichens are :

 
 
 
 

429. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

432. What is absent in Deuteromycetes?

 
 
 
 

433. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

435. Bacteriophages have been used as:

 
 
 
 

436. Select the wrong statement:

 
 
 
 

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

 
 
 
 

438. Who discovered cyanophages?

 
 
 
 

439. Multicellular and jacketed sex organs are found in :

 
 
 
 

440. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

442. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

444. Botulism is a:

 
 
 
 

445. The zygospore in Rhizopus on germination forms:

 
 
 
 

446. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

447. Which one of the following statement is wrong?

 
 
 
 

448.

449. Late blight of potato is caused by:

 
 
 
 

450. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

457. The seedless plants which possess vascular tissues are:

 
 
 
 

458. Pasteur is famous for his:

 
 
 
 

459. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. What is a vector?

 
 
 
 

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

 
 
 
 

468. Ergot of rye is caused by:

 
 
 
 

469. The sporophyte of Riccia is :

 
 
 
 

470. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. Agar-agar is obtained from:

 
 
 
 

475. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

482. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. The sporophyte of Riccia is represented by :

 
 
 
 

486. Funaria is a Bryophyta because :

 
 
 
 

487. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

489. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

491. Black rust of wheat is caused by:

 
 
 
 

492. Longest known virus is:

 
 
 
 

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

 
 
 
 

494. 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?

 
 
 
 

495. Penicillin is obtained from:

 
 
 
 

496. The photosynthetic protists are:

 
 
 
 

497. Economic importance of bacteria lies in their being:

 
 
 
 

498. Milk is converted to curd by:

 
 
 
 

499. Reproduction in Rhizopus is:

 
 
 
 

500. Ovules are not found enclosed in ovary in :

 
 
 
 

501. Psilotum is:

 
 
 
 

502. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Antibiotic has been extracted from :

 
 
 
 

507. Virion refers to:

 
 
 
 

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

 
 
 
 

509. Yeast belongs to class:

 
 
 
 

510. Ovules are not found enclosed in ovary in :

 
 
 
 

511. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

516. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

518. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

520. The lambda phase is a:

 
 
 
 

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

 
 
 
 

522. What are Cyanobacteria?

 
 
 
 

523. Viruses have:

 
 
 
 

524. 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:

 
 
 
 

525. Red rot of sugarcane is caused by:

 
 
 
 

526. Ovary is absent in:

 
 
 
 

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

 
 
 
 

528. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. Circular DNA is seen in:

 
 
 
 

537. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

539. Centric discoid form of diatom is:

 
 
 
 

540. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

542. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

545. What is streptomycin?

 
 
 
 

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

 
 
 
 

547. Bacteria growing on synthetic medium are called:

 
 
 
 

548. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

551. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

553. Cellular slime mold is:

 
 
 
 

554. The fungi are mostly:

 
 
 
 

555. Which of the following does not contain chlorophyll?

 
 
 
 

556. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

558. Viroids have:

 
 
 
 

559. The smallest bacterium is:

 
 
 
 

560. Aflatoxin is produced as a product in :

 
 
 
 

561. Mycoplasma contains:

 
 
 
 

562. Special feature of pollen grains of Pinus is :

 
 
 
 

563. Among the algae kelps are :

 
 
 
 

564. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

566. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

570. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

572. Seeds are characteristically found in :

 
 
 
 

573. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. Most primitive embryophytes are placed in :

 
 
 
 

579. The tree fern is:

 
 
 
 

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

 
 
 
 

581. Polystelic condition is found in:

 
 
 
 

582. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

585. The order generally ends with:

 
 
 
 

586. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

588. The largest alga is:

 
 
 
 

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

 
 
 
 

590. In tracheophyta:

 
 
 
 

591. Gametophyte is the main plant body in :

 
 
 
 

592. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

594. Lichens reproduce by :

 
 
 
 

595. Which is a gametophytic tissue?

 
 
 
 

596. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

599. Heterotrichous habit means :

 
 
 
 

600. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

602. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

605. Bacteria are placed under:

 
 
 
 

606. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

608. The phloem of vascular system of Cycas is :

 
 
 
 

609. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

612. Iodine is obtained from :

 
 
 
 

613. Which is an edible fungus?

 
 
 
 

614. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

616. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. Fern prothallus produces:

 
 
 
 

620. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

622. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

629. Photosynthetic bacteria have:

 
 
 
 

630. The spermatozoids of Cycas are :

 
 
 
 

631. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

633. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. Which of the following are absent in Mycoplasma?

 
 
 
 

637. Bacteriophage consists of:

 
 
 
 

638. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

640. Protistan algae obtain their food as:

 
 
 
 

641. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

643. Green plants are classified as :

 
 
 
 

644. 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?

 
 
 
 

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

 
 
 
 

646. Which of the following is sago palm?

 
 
 
 

647. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

649. Siphonogamy is found in:

 
 
 
 

650. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

653. Cycas is :

 
 
 
 

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

 
 
 
 

655. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

657. Little leaf disease of Brinjal is caused by:

 
 
 
 

658. Photoautotrophic bacteria have:

 
 
 
 

659. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

661. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

665. Ectocarpus produces:

 
 
 
 

666. 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:

 
 
 
 

667. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

669. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

671. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

674. Yeast is a source of:

 
 
 
 

675. Soil fertility is lost by the activities of:

 
 
 
 

676. Spermatophyta are characterized by producing:

 
 
 
 

677. Citrus canker is caused by:

 
 
 
 

678. Facultative parasite is:

 
 
 
 

679. 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?

 
 
 
 

680. Which of the following lichens is harmful?

 
 
 
 

681. Which is a fungicide?

 
 
 
 

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

 
 
 
 

683. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. Pollination in Cycas takes place by :

 
 
 
 

687. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

689. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

692. To which class Riccia belongs :

 
 
 
 

693. To which country Antony van Leeuwenhoek belong?

 
 
 
 

694. Ginkgo biloba is a:

 
 
 
 

695. The antibiotic is obtained from:

 
 
 
 

696. Absorptive nutrition is:

 
 
 
 

697. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

699. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

700. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

704. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

706. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

708. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

710. Red rot of sugarcane is caused by :

 
 
 
 

711. The most primitive vascular plants is:

 
 
 
 

712. All protozoans possess:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

715. The zoospores of Ulothrix are :

 
 
 
 

716. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

718. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

722. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

724.

725. What is the role of nitrifying bacteria?

 
 
 
 

726. Maximum diversity of life forms occurs in :

 
 
 
 

727. What is mycorrhiza?

 
 
 
 

728. Quarantine regulations are concerned with:

 
 
 
 

729. Oswald Tippo’s classification was based on :

 
 
 
 

730. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

732. Leaf spot of groundnut is caused by :

 
 
 
 

733. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

734. Generic name of mango is:

 
 
 
 

735. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

736. Streptomyces falls under:

 
 
 
 

737. 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?

 
 
 
 

738. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

740. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

742. First animal pathogenic virus was discovered by:

 
 
 
 

743. The leaves of Funaria are :

 
 
 
 

744. Who among the following discovered virus?

 
 
 
 

745. Nannandria are:

 
 
 
 

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

 
 
 
 

747. In Herpes virus DNA is:

 
 
 
 

748. The most important property of yeast is:

 
 
 
 

749. Pseudomycelium is found in:

 
 
 
 

750. The orders generally have the uniform endings:

 
 
 
 

751. Which part of Riccia bears nurse cells?

 
 
 
 

752. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

755. Germ theory of disease was proposed by:

 
 
 
 

756. Male gametes in Dryopteris are:

 
 
 
 

757. Mixed cropping helps :

 
 
 
 

758. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

760. Sexual reproduction in Rhizopus is by:

 
 
 
 

761. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

763. Water bloom is generally caused by :

 
 
 
 

764. Which of the following have a prokaryotic cell?

 
 
 
 

765. Bivalved siliceous shell or frustule occur in:

 
 
 
 

766. Each chloroplast in Spirogyra bears :

 
 
 
 

767. Which statement is wrong in regard to bacteria?

 
 
 
 

768. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

770. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

772. 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:

 
 
 
 

773. Early blight of potato is caused by:

 
 
 
 

774. Vegetative reproduction in Cycas is by means of :

 
 
 
 

775. Cycas plant in appearance resembles :

 
 
 
 

776. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

779. In moss, reduction division occurs in :

 
 
 
 

780. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

783. 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:

 
 
 
 

784. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

786. The mycelium of Rhizopus is:

 
 
 
 

787. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. The lichens growing on rocks are called :

 
 
 
 

793. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

795. The young leaves of Cycas have :

 
 
 
 

796. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

798. The alga, Spirogyra are found in :

 
 
 
 

799. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

801. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

803. Simple polyembryony is found in :

 
 
 
 

804. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

811. Embryophyta includes:

 
 
 
 

812. White rust of crucifers is caused by:

 
 
 
 

813. Fern prothallus is:

 
 
 
 

814. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

816. Most of the lichens are composed of :

 
 
 
 

817. Placenta in fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

821. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

823. Rhizoids of Riccia are :

 
 
 
 

824. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

826. In Funaria :

 
 
 
 

827. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

829. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

831. Spirogyra differs from moss protonema in having :

 
 
 
 

832. Lichens are indicators of :

 
 
 
 

833. The truncated cone of HIV consists of:

 
 
 
 

834. Wine turns sour because of:

 
 
 
 

835. Some biologists have used the term Mycetozoa for:

 
 
 
 

836. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

838. Which one of the following is a monocot?

 
 
 
 

839. Which of the following are included in Tracheophyta?

 
 
 
 

840. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

842. Interferon is a:

 
 
 
 

843. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

845. Proembryo in Pinus is :

 
 
 
 

846. Bacteria are considered to be plants because they:

 
 
 
 

847. 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:

 
 
 
 

848. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

851. Mucilaginous canals in Cycas are found in :

 
 
 
 

852. Some bacteria cannot be killed easily because of:

 
 
 
 

853. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

855. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

857. Small epidermal swellings due to infection are called :

 
 
 
 

858. Mycoplasmas are not viruses in nature because:

 
 
 
 

859. Which of the following are included in Tracheophyta?

 
 
 
 

860. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

861. . Tapetum develops in:

 
 
 
 

862. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

864. Mycoplasma are: