Quiz_Random

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

 
 
 
 

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

 
 
 
 

3. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Pinus microsporophyll bears:

 
 
 
 

9. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Select the wrong statement:

 
 
 
 

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

 
 
 
 

17. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Triple antigen injection or vaccine are for:

 
 
 
 

23. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Which is the nuclear material in bacteria?

 
 
 
 

27. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

29. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

37. The tallest moss in the world is :

 
 
 
 

38. Fern prothallus is:

 
 
 
 

39. Antibiotics cure the disease by:

 
 
 
 

40. The male gametes of Pinus are :

 
 
 
 

41. Protists which are diploid reproduce sexually by:

 
 
 
 

42. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

46. The gametophyte of fern bears:

 
 
 
 

47. Funaria can be differentiated from Cycas :

 
 
 
 

48. What is mycorrhiza?

 
 
 
 

49. What are Cyanobacteria?

 
 
 
 

50. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. Typhoid in man is caused by:

 
 
 
 

54. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

59. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

60. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Heterospory is the production of:

 
 
 
 

64. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

66. Saccharomyces is well known for:

 
 
 
 

67. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. Cycas is different from mango in :

 
 
 
 

71. Most primitive embryophytes are placed in :

 
 
 
 

72. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

74. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

76. Reserve food in Euglena is:

 
 
 
 

77. The phloem of vascular system of Cycas is :

 
 
 
 

78. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Who among the following discovered virus?

 
 
 
 

82. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Ergot is obtained from :

 
 
 
 

86. The antibiotic is obtained from:

 
 
 
 

87. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

89. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. Centric discoid form of diatom is:

 
 
 
 

93. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

95. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

97. Fruiting body of lichens is :

 
 
 
 

98. Which is not true for Escherichia coli?

 
 
 
 

99. Yeast is a source of:

 
 
 
 

100. Choose the correct statement about Spirogyra:

 
 
 
 

101. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

103. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. Maximum diversity of life forms occurs in :

 
 
 
 

108. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

114. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. John Hutchinson divided dicots into two divisions:

 
 
 
 

119. The nucleus of bacteria is:

 
 
 
 

120. Cyanophage is a virus that attacks:

 
 
 
 

121. Some biologists have used the term Mycetozoa for:

 
 
 
 

122. Germ theory of disease was proposed by:

 
 
 
 

123. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

125. Club moss is the common name of :

 
 
 
 

126. Which condition is found in Cycas?

 
 
 
 

127. Helotism word is used for the symbiosis between :

 
 
 
 

128. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

132. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

134. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

136. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

138. Which is a fungicide?

 
 
 
 

139. The prothallus of fern is:

 
 
 
 

140. Some bacteria cannot be killed easily because of:

 
 
 
 

141. Which part of Riccia bears nurse cells?

 
 
 
 

142. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

144. Winged seeds are found in :

 
 
 
 

145. The role of meiosis is for:

 
 
 
 

146. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

148. Bacteria are considered to be plants because they:

 
 
 
 

149. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

155. The order generally ends with:

 
 
 
 

156. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

158. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

161. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

163. Climbers are found in genus:

 
 
 
 

164. The truncated cone of HIV consists of:

 
 
 
 

165. Fairy ring is the name given to:

 
 
 
 

166. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

168. Viroids have:

 
 
 
 

169. Azolla growing in paddy fields helps in:

 
 
 
 

170. Meristele of fern is:

 
 
 
 

171. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

172. Genetic material of TMV is:

 
 
 
 

173. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

175. Mostly type of zygospore in Ulothrix is:

 
 
 
 

176. The chief characteristic of class Ascomycetes is:

 
 
 
 

177. Spores of which plants have chloroplast:

 
 
 
 

178. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

181. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

183. Photoautotrophic bacteria have:

 
 
 
 

184. Most common type of conjugation in Spirogyra is :

 
 
 
 

185. Total parasites belong to:

 
 
 
 

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

 
 
 
 

187. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

188. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

192. Male gametophyte of Selaginella is found:

 
 
 
 

193. Which is a gametophytic tissue?

 
 
 
 

194. Embryophyta includes :

 
 
 
 

195. Who discovered heterothallism in fungi?

 
 
 
 

196. Mycoplasmas are not viruses in nature because:

 
 
 
 

197. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

199. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. TMV was isolated in crystalline form by:

 
 
 
 

204. Which one of the following statement is wrong?

 
 
 
 

205. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

207. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

209. Desired type of Cycas can be grown by:

 
 
 
 

210. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

212. Parmelia belongs to :

 
 
 
 

213. The DNA of E coli is:

 
 
 
 

214. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

217. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

225. Ulothrix produces :

 
 
 
 

226. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

229. Pollination drop is:

 
 
 
 

230. An alga which is rich in proteins:

 
 
 
 

231. Most primitive group of vascular plants are:

 
 
 
 

232. Tautonyms are illegitimate in:

 
 
 
 

233. The middle sterile part of capsule is called:

 
 
 
 

234. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

237. Cycas is similar to a mustard plant :

 
 
 
 

238. Sexual reproduction of lichen is due to :

 
 
 
 

239. Ovules are not found enclosed in ovary of:

 
 
 
 

240. Chemosynthetic bacteria are:

 
 
 
 

241. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

245. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. Sleeping sickness disease in man is caused by:

 
 
 
 

251. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

252. Penicillin is obtained from:

 
 
 
 

253. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

258. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

262. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

265. Spermatophyta are characterized by producing:

 
 
 
 

266. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

270. Seeds are characteristically found in:

 
 
 
 

271. The gametophyte of fern is as:

 
 
 
 

272. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

274. Where does meiosis occur in yeast?

 
 
 
 

275. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

277. The sporangium of fern contains nearly:

 
 
 
 

278. 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?

 
 
 
 

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

 
 
 
 

280. Each chloroplast in Spirogyra bears :

 
 
 
 

281. Lichens form the first community in

 
 
 
 

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

 
 
 
 

283. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

285. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

286. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

288. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

290. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

292. NBG of Lucknow is now named as:

 
 
 
 

293. Some diseases caused by bacteria are:

 
 
 
 

294. All algae have:

 
 
 
 

295. In Pteris, the archegonia are present:

 
 
 
 

296. Cyathia is characterized by:

 
 
 
 

297. In a bacteriophage, DNA is present in:

 
 
 
 

298. 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:

 
 
 
 

299. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

302. Bacteriophages have been used as:

 
 
 
 

303. The sporophyte of Riccia is :

 
 
 
 

304. What is special feature of fern archegonia?

 
 
 
 

305. Gram stain is used to:

 
 
 
 

306. The photosynthetic protists are:

 
 
 
 

307. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

309. The megaspore of Selaginella on germination produces:

 
 
 
 

310. Small epidermal swellings due to infection are called :

 
 
 
 

311. In Cycas microsporangia are borne on:

 
 
 
 

312. Late blight of potato is caused by :

 
 
 
 

313. Which of the following have algal zone?

 
 
 
 

314. In Cycas:

 
 
 
 

315. Pteridophyta are also called:

 
 
 
 

316. The Rhizopus is:

 
 
 
 

317. Reproduction in Cycas takes place by :

 
 
 
 

318. Green plants are classified as:

 
 
 
 

319. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

321. The development of sporangium in Selaginella is:

 
 
 
 

322. Bacteria are placed under:

 
 
 
 

323. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. The vascular bundles of Cycas stem are :

 
 
 
 

327. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

329. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

331. In moss, reduction division occurs in :

 
 
 
 

332. What are plasmids?

 
 
 
 

333. The gametophyte of moss has distinct phases :

 
 
 
 

334. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

336. In Funaria :

 
 
 
 

337. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

340. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

342. Green plants are classified as :

 
 
 
 

343. Ovary is absent in :

 
 
 
 

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

 
 
 
 

345. In Funaria, calyptra is derived from :

 
 
 
 

346. E coli is a:

 
 
 
 

347. Late blight of potato is caused by:

 
 
 
 

348. The spermatozoids of Cycas are :

 
 
 
 

349. Pinus is:

 
 
 
 

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

 
 
 
 

351. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. What is the role of nitrifying bacteria?

 
 
 
 

356. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

358. Why is Cycas called a living fossil?

 
 
 
 

359. The largest known bacterium is:

 
 
 
 

360. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

362. The tree fern is:

 
 
 
 

363. Which is a redwood tree?

 
 
 
 

364. Pasteurized milk is:

 
 
 
 

365. Photosynthetic protists belong to:

 
 
 
 

366. The alga, Spirogyra are found in :

 
 
 
 

367. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

370. The sori in Dryopteris are found on:

 
 
 
 

371. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

373.

 

374. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

376. Botulinum toxin effects:

 
 
 
 

377. Water-net is the name of:

 
 
 
 

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

 
 
 
 

379. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

383. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

385. The spur of Pinus roxburghii has :

 
 
 
 

386. Virus and bacteriophage are made-up of:

 
 
 
 

387. Facultative saprophyte is:

 
 
 
 

388. Coenogamete is found in:

 
 
 
 

389. Standard size of a herbarium sheet is:

 
 
 
 

390. Mixed cropping helps :

 
 
 
 

391. 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?

 
 
 
 

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

 
 
 
 

393. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

396. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

397. Which of the following applies to Selaginella?

 
 
 
 

398. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

400. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

402. Which of the following is sago palm?

 
 
 
 

403. Protozoans are considered animals because these are:

 
 
 
 

404. Funaria is :

 
 
 
 

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

 
 
 
 

406. Funaria is :

 
 
 
 

407. Aflatoxin is produced by:

 
 
 
 

408. Clostridium can:

 
 
 
 

409. Which of the following is a heterosporous pteridophyte?

 
 
 
 

410. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

417. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. Sporophyte of Funaria is :

 
 
 
 

421. Indusium in Dryopteris is:

 
 
 
 

422. Oswald Tippo’s classification was based on :

 
 
 
 

423. Circular DNA is seen in:

 
 
 
 

424. Sometimes the bacterial cell is enclosed in:

 
 
 
 

425. Ergot of rye is caused by:

 
 
 
 

426. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

428. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

432. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

436. Mycoplasma was discovered by:

 
 
 
 

437. Which among the following is a shrub?

 
 
 
 

438. Fern prothallus produces:

 
 
 
 

439. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

441. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

445. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

447. Cycas is :

 
 
 
 

448. Which of the following is a monocot?

 
 
 
 

449. LSD is:

 
 
 
 

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

 
 
 
 

451. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

453. The orders generally have the uniform endings:

 
 
 
 

454. The most primitive vascular plants is:

 
 
 
 

455. The fungi that grow on wood are called:

 
 
 
 

456. Ginkgo biloba is a:

 
 
 
 

457. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

459. Woody climbers are known as :

 
 
 
 

460. Redness of red sea is due to :

 
 
 
 

461. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

462. A gill of Agaricus:

 
 
 
 

463. Male gametes in Dryopteris are:

 
 
 
 

464. Bentham and Hooker placed gymnosperms:

 
 
 
 

465. Cycas revoluta is widely grown as :

 
 
 
 

466. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

468. The chromosomal number in:

 
 
 
 

469. What is streptomycin?

 
 
 
 

470. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

472. 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:

 
 
 
 

473. Germination of the seed of Pinus is :

 
 
 
 

474. Transfusion tissue is present in the leaflet of:

 
 
 
 

475. Viruses have:

 
 
 
 

476. Wine turns sour because of:

 
 
 
 

477. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. The leaves of Funaria are :

 
 
 
 

481. The ferns are usually found:

 
 
 
 

482. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

484. Ovules are not found enclosed in ovary in :

 
 
 
 

485. Iodine is obtained from :

 
 
 
 

486. Little leaf disease of Brinjal is caused by:

 
 
 
 

487. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

489. Special feature of pollen grains of Pinus is :

 
 
 
 

490. 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:

 
 
 
 

491. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

494. 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:

 
 
 
 

495. 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?

 
 
 
 

496. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

499. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

501. Bryophyta have a special character from other plants:

 
 
 
 

502. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

504. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

506. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

508. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

510. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

512. Smut of maize is caused by :

 
 
 
 

513. Streptomyces falls under:

 
 
 
 

514. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

517. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

520. Anoxygenic photosynthesis occurs in:

 
 
 
 

521. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

525. Fern plants are:

 
 
 
 

526. The coralloid roots are :

 
 
 
 

527. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

530. Lichens reproduce by :

 
 
 
 

531. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

533. Ethylene oxide is widely used to:

 
 
 
 

534. The microsporophylls on the cone of Cycas are :

 
 
 
 

535. Generic name of mango is:

 
 
 
 

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

 
 
 
 

537. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

540. Cellular slime mold is:

 
 
 
 

541. The leafy fern plant represents the:

 
 
 
 

542. Aflatoxin is produced as a product in :

 
 
 
 

543. Lichens reproduce by :

 
 
 
 

544. The stele of Dryopteris is a:

 
 
 
 

545. In moss, sporogenous tissue arises from:

 
 
 
 

546. Quarantine regulations are concerned with:

 
 
 
 

547. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

550. Enteric bacteria are those bacteria that live:

 
 
 
 

551. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

553. Lichens are indicators of :

 
 
 
 

554. The fungi used as food are:

 
 
 
 

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

 
 
 
 

556. All protozoans possess:

 
 
 
 

557. The leaves of Funaria are :

 
 
 
 

558. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

564. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

570. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

574. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

576. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

580. Roots are absent in :

 
 
 
 

581. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

583. Which class of Protozoa includes all parasitic forms?

 
 
 
 

584. In Gymnosperms endosperm is a:

 
 
 
 

585. Placenta in fern is:

 
 
 
 

586. Winged pollen grains are found in :

 
 
 
 

587. Pneumonia is caused by:

 
 
 
 

588. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

592. Yeast belongs to class:

 
 
 
 

593. 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:

 
 
 
 

594. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

596. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

600. 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:

 
 
 
 

601. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

603. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

605. Acellular slime mold is/are:

 
 
 
 

606. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. Black rust of wheat is caused by:

 
 
 
 

611. Psilotum is:

 
 
 
 

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

 
 
 
 

613. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

617. Lichens are ecologically important because :

 
 
 
 

618. Rhizopus belongs to:

 
 
 
 

619. Streptomycin is obtained from:

 
 
 
 

620. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

622. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Plasmids are:

 
 
 
 

628. Longest known virus is:

 
 
 
 

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

 
 
 
 

630. Spermatophyta are characterized by producing:

 
 
 
 

631. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

633. The teeth of peristome of Funaria are :

 
 
 
 

634. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

635. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

637. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

640. The megasporangium of Selaginella is:

 
 
 
 

641. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

643. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

646. The mycelium of Rhizopus is:

 
 
 
 

647. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

649. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

651. Saccharomyces is used in:

 
 
 
 

652. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

654. The sporangiophores in Rhizopus are:

 
 
 
 

655. Embryo formation is not known in :

 
 
 
 

656. The first to isolate a plant virus was:

 
 
 
 

657. The Rhizopus gametes are formed in:

 
 
 
 

658. Which of the following are absent in Mycoplasma?

 
 
 
 

659. Pinus gerardiana is :

 
 
 
 

660. Funaria are commonly found :

 
 
 
 

661. Most primitive kind of flower is represented by:

 
 
 
 

662. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

664. The fungi are mostly:

 
 
 
 

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

 
 
 
 

666. Which of the following is a parasitic algae?

 
 
 
 

667. Etiology includes the study of :

 
 
 
 

668. The fungi are usually:

 
 
 
 

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

 
 
 
 

670.

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

 
 
 
 

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

 
 
 
 

673. Virion refers to:

 
 
 
 

674. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

676. Which causes red tide?

 
 
 
 

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

 
 
 
 

678. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

681. Methanogens belong to:

 
 
 
 

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

 
 
 
 

683. The roots of Cycas are :

 
 
 
 

684. 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?

 
 
 
 

685. In dinoflagellates, the two flagella are:

 
 
 
 

686. Endemic plants are characterised by their:

 
 
 
 

687. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

689. White rust of crucifers is caused by:

 
 
 
 

690. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

697. Which of the following have a prokaryotic cell?

 
 
 
 

698. Facultative parasite is:

 
 
 
 

699. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

702. Sexual reproduction in Rhizopus is by:

 
 
 
 

703. The leaf of Cycas shows:

 
 
 
 

704. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

706. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

708. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

712. The most important property of yeast is:

 
 
 
 

713. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

715. Cell walls of Gram-positive bacteria contain:

 
 
 
 

716. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

721. The genetic material of poxvirus is:

 
 
 
 

722. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

724. The central part of Funaria axis is :

 
 
 
 

725. Amoeba is a member of the phylum:

 
 
 
 

726. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

728. The lichens growing on rocks are called :

 
 
 
 

729. Select the wrong statement:

 
 
 
 

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

 
 
 
 

731. Who named prion?

 
 
 
 

732. The rhizoids of Funaria are :

 
 
 
 

733. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

735. The source of litmus is :

 
 
 
 

736. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

738. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

739. The sexual reproductive organs in Rhizopus are:

 
 
 
 

740. Lichen show :

 
 
 
 

741. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

743. The sporophyte of Riccia is represented by :

 
 
 
 

744. Vascular tissue is found in :

 
 
 
 

745. Pythium debaryanum is the causative agent of:

 
 
 
 

746. The upper region of moss capsule is :

 
 
 
 

747. Nannandria are:

 
 
 
 

748. . Tapetum develops in:

 
 
 
 

749. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

751. What is a vector?

 
 
 
 

752. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

755. Rhizophore of Selaginella is:

 
 
 
 

756. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

758. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

759. In Cycas the fertilization is:

 
 
 
 

760. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

762.

763. Cycas plant in appearance resembles :

 
 
 
 

764. In moss, conducting tissue is made up of

 
 
 
 

765. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. Viruses are considered to be:

 
 
 
 

770. First animal pathogenic virus was discovered by:

 
 
 
 

771. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

775. Detailed study of bacteriophage was made by:

 
 
 
 

776. Mycoplasma are:

 
 
 
 

777. Gymnosperms could also be called as:

 
 
 
 

778. Most of the lichens are composed of :

 
 
 
 

779. Heterotrichous habit means :

 
 
 
 

780. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

782. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

787. Interferon is a:

 
 
 
 

788. Cocci types of bacteria are:

 
 
 
 

789. Isomorphic type alternation of generation is found in:

 
 
 
 

790. The lambda phase is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

793. Lichens show :

 
 
 
 

794. Absorptive nutrition is:

 
 
 
 

795. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

798. Which organisms are the oldest life forms?

 
 
 
 

799. Most primitive embryophytes are placed in:

 
 
 
 

800. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

803. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

805. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

807. Water bloom is generally caused by :

 
 
 
 

808. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

810. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

812. The prothallus of fern represents the plant:

 
 
 
 

813. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

816. All archaebacteria lack:

 
 
 
 

817. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

818. Proembryo in Pinus is :

 
 
 
 

819. Fruits are not found in:

 
 
 
 

820. The largest alga is:

 
 
 
 

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

 
 
 
 

822. Citrus canker is caused by:

 
 
 
 

823. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

825. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

828. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

829. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

835. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

838. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

839. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

842. Vascular cryptogams is the term used for:

 
 
 
 

843. Fruits are not found in Cycas because:

 
 
 
 

844. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

847. Cycas is:

 
 
 
 

848. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

851. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

854. Siphonogamy is found in:

 
 
 
 

855. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

857. Seeds are characteristically found in :

 
 
 
 

858. Early blight of potato is caused by:

 
 
 
 

859. Red rot of sugarcane is caused by :

 
 
 
 

860.

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

 
 
 
 

862. Vegetative reproduction in Cycas is by means of :

 
 
 
 

863. Bacteria growing on synthetic medium are called:

 
 
 
 

864. Yeast grows more rapidly in: