Quiz_Random

1. Gymnosperms could also be called as:

 
 
 
 

2. Ulothrix produces :

 
 
 
 

3. The word “sea weeds” is used for:

 
 
 
 

4. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

9. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

11. Ginkgo biloba is a:

 
 
 
 

12. Germination of the seed of Pinus is :

 
 
 
 

13. One of the distinctive feature of Spirogyra is :

 
 
 
 

14. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

16. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

18. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. Photoautotrophic bacteria have:

 
 
 
 

24. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. The fern plant is:

 
 
 
 

32.

33. The group algae possesses representatives belonging to kingdom:

 
 
 
 

34. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. Cycas revoluta is widely grown as :

 
 
 
 

38. The prothallus of fern represents the plant:

 
 
 
 

39. Citrus canker is caused by :

 
 
 
 

40. The fungi used as food are:

 
 
 
 

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

 
 
 
 

42. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. Which of the following lichens is harmful?

 
 
 
 

46. Anoxygenic photosynthesis occurs in:

 
 
 
 

47. What are plasmids?

 
 
 
 

48. Smallpox is caused by:

 
 
 
 

49. Nitrogen-fixing bacteria may be located:

 
 
 
 

50. Most of the algae are :

 
 
 
 

51. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. In Herpes virus DNA is:

 
 
 
 

55. Cycas plant in appearance resembles :

 
 
 
 

56. In moss, sporogenous tissue arises from:

 
 
 
 

57. Why is Cycas called a living fossil?

 
 
 
 

58. Pteridophytes are also known as :

 
 
 
 

59. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

60. Sleeping sickness disease in man is caused by:

 
 
 
 

61. Which have the largest antherozoid?

 
 
 
 

62. In Pteris, the roots are:

 
 
 
 

63. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. Meiosis in Ulothrix takes place:

 
 
 
 

71. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

73. Ovules are not found enclosed in ovary of:

 
 
 
 

74. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

76. Fairy ring is the name given to:

 
 
 
 

77. The sporangium of fern contains nearly:

 
 
 
 

78. Citrus canker is caused by:

 
 
 
 

79. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

81. Mycoplasma contains:

 
 
 
 

82. Spores of which plants have chloroplast:

 
 
 
 

83. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

85. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

87. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Cell walls of Gram-positive bacteria contain:

 
 
 
 

91. Antibiotic has been extracted from :

 
 
 
 

92. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

94. Which is a fungicide?

 
 
 
 

95. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

104. Lichens form the first community in

 
 
 
 

105. Fern plants are:

 
 
 
 

106. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

108. Green plants are classified as :

 
 
 
 

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

 
 
 
 

110. Enzymes are absent in:

 
 
 
 

111. Azolla and Salvinia both are:

 
 
 
 

112. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

117. Oswald Tippo’s classification was based on :

 
 
 
 

118. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

121. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

122. In moss, reduction division occurs in :

 
 
 
 

123. Spermatophyta are characterized by producing:

 
 
 
 

124. Who discovered streptomycin?

 
 
 
 

125. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

129. Pseudomycelium is found in:

 
 
 
 

130. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

132. Ethylene oxide is widely used to:

 
 
 
 

133. Cleavage polyembryony is found in :

 
 
 
 

134. Aflatoxin is produced by:

 
 
 
 

135. Which one of the following is a monocot?

 
 
 
 

136. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

138. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

142. Fruits are not found in :

 
 
 
 

143. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

145. Asexual reproductive body of Volvox is called:

 
 
 
 

146. The upper region of moss capsule is :

 
 
 
 

147. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

151. Bacteria are found everywhere, except:

 
 
 
 

152. Gram stain is used to:

 
 
 
 

153. Which is not found in bacteria?

 
 
 
 

154. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

156. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

157. Some biologists have used the term Mycetozoa for:

 
 
 
 

158. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

160. Spirogyra differs from moss protonema in having :

 
 
 
 

161. Cycas is :

 
 
 
 

162. Heterotrichous habit means :

 
 
 
 

163. Which class of Protozoa includes all parasitic forms?

 
 
 
 

164. Rhizopus and yeast are usually:

 
 
 
 

165. Zoogametes are not found in:

 
 
 
 

166. To which country Antony van Leeuwenhoek belong?

 
 
 
 

167. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

168. Methanogens belong to:

 
 
 
 

169. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

171. Pasteur is famous for his:

 
 
 
 

172. Which is an edible fungus?

 
 
 
 

173. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

175. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

177. Lichens are the indicator of pollution :

 
 
 
 

178. The spur of Pinus roxburghii has :

 
 
 
 

179. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

183. Iodine is obtained from :

 
 
 
 

184. Facultative parasite is:

 
 
 
 

185. Plasmids are:

 
 
 
 

186. Halophiles are the bacteria that require for growth:

 
 
 
 

187. The chloroplast in Ulothrix is :

 
 
 
 

188. Who among the following discovered virus?

 
 
 
 

189. Amoeba is a member of the phylum:

 
 
 
 

190. Green plants are classified as:

 
 
 
 

191. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

192. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

195. All algae have:

 
 
 
 

196. What is special feature of fern archegonia?

 
 
 
 

197. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

199. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. All protozoans possess:

 
 
 
 

204. 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:

 
 
 
 

205. The prothallus of fern is:

 
 
 
 

206. Kuru, a human disease is caused by:

 
 
 
 

207. The source of litmus is :

 
 
 
 

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

 
 
 
 

209. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

212. Generic name of mango is:

 
 
 
 

213. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. Usually, bacteria reproduce by:

 
 
 
 

217. Winged seeds are found in :

 
 
 
 

218. 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:

 
 
 
 

219. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Parmelia belongs to :

 
 
 
 

224. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

227. Cap cells are found in the filament of:

 
 
 
 

228. Ovary is absent in:

 
 
 
 

229. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

238. The role of meiosis is for:

 
 
 
 

239. The Rhizopus is:

 
 
 
 

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

 
 
 
 

241. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

243. In moss, conducting tissue is made up of

 
 
 
 

244. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

246. Who discovered heterothallism in fungi?

 
 
 
 

247. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

253. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

258. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

260. Reproduction in Cycas takes place by :

 
 
 
 

261. Ovary is absent in :

 
 
 
 

262. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

271. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

273. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

274. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

276. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

279. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

285. LSD is:

 
 
 
 

286. Metulae are found in:

 
 
 
 

287. Bacteriophages have been used as:

 
 
 
 

288. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

292. The term stele was given by:

 
 
 
 

293. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

294. The first to isolate a plant virus was:

 
 
 
 

295. Pasteurized milk is:

 
 
 
 

296. The nucleus of bacteria is:

 
 
 
 

297. How is moss different from fern?

 
 
 
 

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

 
 
 
 

299. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

301. The ferns are usually found:

 
 
 
 

302. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

306. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

308. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

310. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

313. The alga, Spirogyra are found in :

 
 
 
 

314. What is mycorrhiza?

 
 
 
 

315. Which of the following does not contain chlorophyll?

 
 
 
 

316. . Tapetum develops in:

 
 
 
 

317. Fertility of the soil is increased by:

 
 
 
 

318. The development of Selaginella embryo is:

 
 
 
 

319. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

321. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

325. In binomial system most of the words are:

 
 
 
 

326. Vascular tissue is found in :

 
 
 
 

327. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

329. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

331. The leaves of Funaria are :

 
 
 
 

332. Liverworts are included in :

 
 
 
 

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

 
 
 
 

334. The roots of Cycas are :

 
 
 
 

335. Facultative saprophyte is:

 
 
 
 

336. Pollination in Cycas takes place by :

 
 
 
 

337. Embryophyta includes :

 
 
 
 

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

 
 
 
 

339. The plants of Funaria grow :

 
 
 
 

340. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. The mycelium of Rhizopus is:

 
 
 
 

344. Cocci types of bacteria are:

 
 
 
 

345. Which is the nuclear material in bacteria?

 
 
 
 

346. The gametophyte of moss has distinct phases :

 
 
 
 

347. Which of the following is true for viruses?

 
 
 
 

348. Pneumonia is caused by:

 
 
 
 

349. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

353. Bacteria are considered to be plants because they:

 
 
 
 

354. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

356. The orders generally have the uniform endings:

 
 
 
 

357. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

358. Late blight of potato is caused by :

 
 
 
 

359. Cyanophage is a virus that attacks:

 
 
 
 

360. Fern phloem lacks:

 
 
 
 

361. NBG of Lucknow is now named as:

 
 
 
 

362. Which one of the following statement is wrong?

 
 
 
 

363. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

367. In Cycas microsporangia are borne on:

 
 
 
 

368. Water-borne bacterial diseases are:

 
 
 
 

369. Bacteria are placed under:

 
 
 
 

370. Genetic material of TMV is:

 
 
 
 

371. The coralloid roots are :

 
 
 
 

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

 
 
 
 

373. Isomorphic type alternation of generation is found in:

 
 
 
 

374. Centric discoid form of diatom is:

 
 
 
 

375. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

381. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

391. Ergot is obtained from :

 
 
 
 

392.

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

 
 
 
 

394. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

397. Vascular cryptogams is the term used for:

 
 
 
 

398. The seedless plants which possess vascular tissues are:

 
 
 
 

399. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

402. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

404. In Pteris, the archegonia are present:

 
 
 
 

405. Redness of red sea is due to :

 
 
 
 

406. Funaria can be differentiated from Cycas :

 
 
 
 

407. The archegonia in Selaginella develop on:

 
 
 
 

408. Vegetative reproduction in Cycas is by means of :

 
 
 
 

409. Mostly type of zygospore in Ulothrix is:

 
 
 
 

410. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

416. Select the wrong statement:

 
 
 
 

417. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

419. In Gymnosperms endosperm is a:

 
 
 
 

420. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

422. In dinoflagellates, the two flagella are:

 
 
 
 

423. The ascus of yeast contains:

 
 
 
 

424. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

429. Disease resistant plant varieties can be produced by :

 
 
 
 

430. Roots are absent in :

 
 
 
 

431. Which group of algae have an incipient nucleus?

 
 
 
 

432. The two conjugating gametangia of Rhizopus are:

 
 
 
 

433. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

435. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

437. The order generally ends with:

 
 
 
 

438. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

441. 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:

 
 
 
 

442. Mixed cropping helps :

 
 
 
 

443. The DNA of E coli is:

 
 
 
 

444. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

445. Red rot of sugarcane is caused by :

 
 
 
 

446. Streptomycin is obtained from:

 
 
 
 

447. The development of sporangium in Selaginella is:

 
 
 
 

448. The young leaves of Cycas have :

 
 
 
 

449. Lichens reproduce by :

 
 
 
 

450. The zoospores of Ulothrix are :

 
 
 
 

451. Photosynthetic bacteria have:

 
 
 
 

452. Bivalved siliceous shell or frustule occur in:

 
 
 
 

453. Who named prion?

 
 
 
 

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

 
 
 
 

455. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

458. Where does meiosis occur in yeast?

 
 
 
 

459. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

461. What are Cyanobacteria?

 
 
 
 

462. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

463. Early blight of potato is caused by:

 
 
 
 

464. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

467. The sporophyte of Riccia is :

 
 
 
 

468. Bacteriophage consists of:

 
 
 
 

469. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

471. The zygospore in Rhizopus on germination forms:

 
 
 
 

472. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

476. Which causes red tide?

 
 
 
 

477. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

484. Botulinum toxin effects:

 
 
 
 

485. Which of the following shows heterotrichous habit?

 
 
 
 

486. Which of the following is a parasitic algae?

 
 
 
 

487. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

491. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

494. In Funaria :

 
 
 
 

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

 
 
 
 

496. Leaf spot of groundnut is caused by :

 
 
 
 

497. Lichens are indicators of :

 
 
 
 

498. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

500. Cellular slime mold is:

 
 
 
 

501. Ovules are not found enclosed in ovary in :

 
 
 
 

502. Most primitive embryophytes are placed in :

 
 
 
 

503. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. The chromosomal number in:

 
 
 
 

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

 
 
 
 

508. The leaves of Funaria are :

 
 
 
 

509. Triple antigen injection or vaccine are for:

 
 
 
 

510. First animal pathogenic virus was discovered by:

 
 
 
 

511. Bentham and Hooker placed gymnosperms:

 
 
 
 

512. The truncated cone of HIV consists of:

 
 
 
 

513. The teeth of peristome of Funaria are :

 
 
 
 

514. Enteric bacteria are those bacteria that live:

 
 
 
 

515. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

520. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

523. In moss, peristomial teeth are:

 
 
 
 

524.

 

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

 
 
 
 

526. Clostridium can:

 
 
 
 

527. Most common type of conjugation in Spirogyra is :

 
 
 
 

528. Little leaf disease of Brinjal is caused by:

 
 
 
 

529. Diploxylic vascular bundles are found in:

 
 
 
 

530. Heterospory is the production of:

 
 
 
 

531. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

534. The leafy fern plant represents the:

 
 
 
 

535. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

537. Among the algae kelps are :

 
 
 
 

538. Protists which are diploid reproduce sexually by:

 
 
 
 

539. 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:

 
 
 
 

540. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. 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?

 
 
 
 

544. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

546. Viruses have:

 
 
 
 

547. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

551. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

552. Pollination drop is:

 
 
 
 

553. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

554. In angiosperms double fertilization represents:

 
 
 
 

555. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

559. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

561. Funaria is :

 
 
 
 

562. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

565. Meristele of fern is:

 
 
 
 

566. Sexual reproduction of lichen is due to :

 
 
 
 

567. Botulism is a:

 
 
 
 

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

 
 
 
 

569. Viruses are considered to be:

 
 
 
 

570. Water-net is the name of:

 
 
 
 

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

 
 
 
 

572. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

575. Which of the following statement is correct?

 
 
 
 

576. In Cycas which structure is equivalent to stamen?

 
 
 
 

577. Which is a gametophytic tissue?

 
 
 
 

578. The disease apple scab is caused by:

 
 
 
 

579. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

580. Quarantine regulations are concerned with:

 
 
 
 

581. John Hutchinson divided dicots into two divisions:

 
 
 
 

582. What is a vector?

 
 
 
 

583. The fungi that grow on wood are called:

 
 
 
 

584. Which of the following applies to Selaginella?

 
 
 
 

585. The chloroplast of Chlamydomonas are:

 
 
 
 

586. Interferon is a:

 
 
 
 

587. The leaf of Cycas shows:

 
 
 
 

588. Coenogamete is found in:

 
 
 
 

589. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

592. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

595. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

597. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. Lichens show :

 
 
 
 

602. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

605. Sometimes the bacterial cell is enclosed in:

 
 
 
 

606. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

608. The middle sterile part of capsule is called:

 
 
 
 

609. The phloem of vascular system of Cycas is :

 
 
 
 

610. 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?

 
 
 
 

611. Soil fertility is lost by the activities of:

 
 
 
 

612. Spirogyra represents the :

 
 
 
 

613. Lichens are ecologically important because :

 
 
 
 

614. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

616. The tree fern is:

 
 
 
 

617. Protozoans are considered animals because these are:

 
 
 
 

618. Virion refers to:

 
 
 
 

619. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

621. Psilotum is:

 
 
 
 

622. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

624. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Pinus is:

 
 
 
 

628. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

630. Etiology includes the study of :

 
 
 
 

631. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

635. Pollination in Pinus is :

 
 
 
 

636. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

639. The flagella of Chlamydomonas are:

 
 
 
 

640. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

642. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

644. Club moss is the common name of :

 
 
 
 

645. The rhizoids of Funaria are :

 
 
 
 

646. The mode of nutrition of bacteria is usually:

 
 
 
 

647. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

652. Total parasites belong to:

 
 
 
 

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

 
 
 
 

654. The lambda phase is a:

 
 
 
 

655. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. Cyathia is characterized by:

 
 
 
 

659. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

661. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

662. Bryophyta have a special character from other plants:

 
 
 
 

663. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

669. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

673. Water bloom is generally caused by :

 
 
 
 

674. Placenta in fern is:

 
 
 
 

675. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

677. Mycoplasma are sensitive to:

 
 
 
 

678. Majority of lichens are :

 
 
 
 

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

 
 
 
 

680. The disease symptom necrosis refers to :

 
 
 
 

681. Most resistant spore in bacteria is:

 
 
 
 

682. Embryophyta includes:

 
 
 
 

683. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

688. Which fixes atmospheric nitrogen?

 
 
 
 

689. All archaebacteria lack:

 
 
 
 

690. Downy mildew disease is caused by :

 
 
 
 

691. The Rhizopus gametes are formed in:

 
 
 
 

692. Longest known virus is:

 
 
 
 

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

 
 
 
 

694. In Gymnocarpeae the fruiting body is :

 
 
 
 

695. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

698. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

700. Yeast grows more rapidly in:

 
 
 
 

701. Helotism word is used for the symbiosis between :

 
 
 
 

702. Which of the following are included in Tracheophyta?

 
 
 
 

703. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

705. Lichens are pioneers of vegetation in a :

 
 
 
 

706. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

708. Rhizophore of Selaginella is:

 
 
 
 

709. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

711. The largest alga is:

 
 
 
 

712. Bacteria which are spherical are called:

 
 
 
 

713. The fungi are usually:

 
 
 
 

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

 
 
 
 

715. Which of the following are absent in Mycoplasma?

 
 
 
 

716. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

718. Nannandria are:

 
 
 
 

719. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

721. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. Agar-agar is obtained from:

 
 
 
 

726. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. In Cycas the fertilization is:

 
 
 
 

730. Broad spectrum antibiotic is, which:

 
 
 
 

731. The antibiotic is obtained from:

 
 
 
 

732. Germ theory of disease was proposed by:

 
 
 
 

733. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

735. Virus and bacteriophage are made-up of:

 
 
 
 

736. In a diplontic life cycle:

 
 
 
 

737. Which is the correct statement about Selaginella?

 
 
 
 

738. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

739. The stele of Dryopteris is a:

 
 
 
 

740. 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?

 
 
 
 

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

 
 
 
 

742.

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

 
 
 
 

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

 
 
 
 

745. Cryptogams include :

 
 
 
 

746. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

748. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

753. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

756. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

757. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

760. The gametophyte of fern bears:

 
 
 
 

761. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

763. Select the correct statement: (NEET 2016)

 
 
 
 

764. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

766. Most primitive group of vascular plants are:

 
 
 
 

767. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

769. Fruiting body of lichens is :

 
 
 
 

770. Ergot of rye is caused by:

 
 
 
 

771. Bacteria differ from viruses in being sensitive to:

 
 
 
 

772. Heterospory and ligulate leaves are a feature of:

 
 
 
 

773. Which statement is wrong in regard to bacteria?

 
 
 
 

774. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

777. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

783. Who discovered cyanophages?

 
 
 
 

784. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

788. Simple polyembryony is found in :

 
 
 
 

789. Streptomyces falls under:

 
 
 
 

790. Winged pollen grains are found in :

 
 
 
 

791. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

793. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

794. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

796. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

799. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

801. Mycoplasma are:

 
 
 
 

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

 
 
 
 

803. Linnaeus is credited with introducing:

 
 
 
 

804. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

806. In Cycas:

 
 
 
 

807. Proembryo in Pinus is :

 
 
 
 

808. Protistan algae obtain their food as:

 
 
 
 

809. Saccharomyces ludwigii ascus produces:

 
 
 
 

810. Typhoid in man is caused by:

 
 
 
 

811. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

812. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

814. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

817. E coli is a:

 
 
 
 

818. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

820. Fruits are not found in Cycas because:

 
 
 
 

821. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

823. Banana bunchy top is caused by :

 
 
 
 

824. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

830. Absorptive nutrition is:

 
 
 
 

831. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

833. Vascular cryptogam is the term used for :

 
 
 
 

834. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

836. Indusium in Dryopteris is:

 
 
 
 

837. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

840. Circular DNA is seen in:

 
 
 
 

841. Cycas is:

 
 
 
 

842. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

844. Pythium debaryanum is the causative agent of:

 
 
 
 

845. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

846. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

848. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

850. In moss, stomata are found:

 
 
 
 

851. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

853. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

855. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

857. Bryophyta have been placed in cryptogams because:

 
 
 
 

858. Fern prothallus is:

 
 
 
 

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

 
 
 
 

860. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

862. The sporophyte of Riccia is represented by :

 
 
 
 

863. In moss, sporophyte is formed on:

 
 
 
 

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