Quiz_Random

1. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

3. The zygospore in Rhizopus on germination forms:

 
 
 
 

4. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

6. True sexuality is not found in:

 
 
 
 

7. The chromosomal number in:

 
 
 
 

8. Milk is converted to curd by:

 
 
 
 

9. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. The term stele was given by:

 
 
 
 

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

 
 
 
 

14. Detailed study of bacteriophage was made by:

 
 
 
 

15. Funaria is :

 
 
 
 

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

 
 
 
 

17. Water bloom is generally caused by :

 
 
 
 

18. Parmelia belongs to :

 
 
 
 

19. Multicellular and jacketed sex organs are found in :

 
 
 
 

20. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. Red rot of sugarcane is caused by :

 
 
 
 

24. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

26. Metulae are found in:

 
 
 
 

27. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

29. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

31. The archegonia in Selaginella develop on:

 
 
 
 

32. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Psilotum is:

 
 
 
 

36. 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:

 
 
 
 

37. Facultative saprophyte is:

 
 
 
 

38. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

40. Which one of the following is a monocot?

 
 
 
 

41. Pasteur is famous for his:

 
 
 
 

42. Little leaf disease of Brinjal is caused by:

 
 
 
 

43. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

45. The teeth of peristome of Funaria are :

 
 
 
 

46. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

48. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

50. Funaria is :

 
 
 
 

51. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

56. Cyathia is characterized by:

 
 
 
 

57. Pinus is:

 
 
 
 

58. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

60. Ulothrix produces :

 
 
 
 

61. Banana bunchy top is caused by :

 
 
 
 

62. Mucilaginous canals in Cycas are found in :

 
 
 
 

63. Which is an edible fungus?

 
 
 
 

64. Discovery of penicillin was based on:

 
 
 
 

65. Cap cells are found in the filament of:

 
 
 
 

66. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

68. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

70. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

80. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

82. Which condition is found in Cycas?

 
 
 
 

83. Which of the following are absent in Mycoplasma?

 
 
 
 

84. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

89. Yeast grows more rapidly in:

 
 
 
 

90. The spur of Pinus roxburghii has :

 
 
 
 

91. Fairy ring is the name given to:

 
 
 
 

92. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Which one of the following statement is wrong?

 
 
 
 

96. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

98. NBG of Lucknow is now named as:

 
 
 
 

99. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

101. The stele of Dryopteris is a:

 
 
 
 

102. In a diplontic life cycle:

 
 
 
 

103. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

104. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. Winged seeds are found in :

 
 
 
 

108. In moss, peristomial teeth are:

 
 
 
 

109. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Mostly type of zygospore in Ulothrix is:

 
 
 
 

113. The prothallus of fern is:

 
 
 
 

114. Pseudomycelium is found in:

 
 
 
 

115. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

120. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

121. Some biologists have used the term Mycetozoa for:

 
 
 
 

122. Reserve food in Euglena is:

 
 
 
 

123. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

125. Iodine is obtained from :

 
 
 
 

126. Select the wrong statement:

 
 
 
 

127.

 

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

 
 
 
 

129. The gametophyte of moss has distinct phases :

 
 
 
 

130. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

131. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

133. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

135. What is the role of nitrifying bacteria?

 
 
 
 

136. Pollination in Pinus is :

 
 
 
 

137. The chloroplast of Chlamydomonas are:

 
 
 
 

138. The mode of nutrition of bacteria is usually:

 
 
 
 

139. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

143. Transfusion tissue is present in the leaflet of:

 
 
 
 

144. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

146. The chief characteristic of class Ascomycetes is:

 
 
 
 

147. The phloem of vascular system of Cycas is :

 
 
 
 

148. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

150. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

152. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

154. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. The sporangiophores in Rhizopus are:

 
 
 
 

158. Mycoplasma contains:

 
 
 
 

159. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

161. Which of the following have a prokaryotic cell?

 
 
 
 

162. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. The Rhizopus is:

 
 
 
 

166. Acetobacter is useful in:

 
 
 
 

167. Tautonyms are illegitimate in:

 
 
 
 

168. Embryophyta includes:

 
 
 
 

169. In Gymnocarpeae the fruiting body is :

 
 
 
 

170. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

172. Redness of red sea is due to :

 
 
 
 

173. The disease symptom necrosis refers to :

 
 
 
 

174. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

176. Liverworts are included in :

 
 
 
 

177. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

181. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

182. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

186. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

188. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

190.

191. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

193. Climbers are found in genus:

 
 
 
 

194. Nitrogen-fixing bacteria may be located:

 
 
 
 

195. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

198. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

202. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

204. Triple antigen injection or vaccine are for:

 
 
 
 

205. Asexual reproductive body of Volvox is called:

 
 
 
 

206. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

208. Kuru, a human disease is caused by:

 
 
 
 

209. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. Mycoplasma are sensitive to:

 
 
 
 

214. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

217. Wine turns sour because of:

 
 
 
 

218. 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?

 
 
 
 

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

 
 
 
 

220. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

222. What is absent in Deuteromycetes?

 
 
 
 

223. Sometimes the bacterial cell is enclosed in:

 
 
 
 

224. Pinus microsporophyll bears:

 
 
 
 

225. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

229. Cycas revoluta is widely grown as :

 
 
 
 

230. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. Total parasites belong to:

 
 
 
 

237. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

242. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

247. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

249. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

252. Facultative parasite is:

 
 
 
 

253. Why is Cycas called a living fossil?

 
 
 
 

254. Genetic material of TMV is:

 
 
 
 

255. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

257. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

260. The megaspore of Selaginella on germination produces:

 
 
 
 

261. Sexual reproduction of lichen is due to :

 
 
 
 

262. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

264. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

266. Meiosis in Ulothrix takes place:

 
 
 
 

267. What is special feature of fern archegonia?

 
 
 
 

268. Embryophyta includes :

 
 
 
 

269. Which bacteria convert nitrate into nitrogen?

 
 
 
 

270. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

272. In Herpes virus DNA is:

 
 
 
 

273. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

276. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

280. Streptomyces falls under:

 
 
 
 

281. Antibiotic has been extracted from :

 
 
 
 

282. The middle sterile part of capsule is called:

 
 
 
 

283. Water-borne bacterial diseases are:

 
 
 
 

284. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

286. Heterocysts are found in :

 
 
 
 

287. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

289. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

291. Late blight of potato is caused by:

 
 
 
 

292. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

295. Longest known virus is:

 
 
 
 

296. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

297. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

299. Roots are absent in :

 
 
 
 

300. Endemic plants are characterised by their:

 
 
 
 

301. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

303. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

305. Halophiles are the bacteria that require for growth:

 
 
 
 

306. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

311. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

312. Early blight of potato is caused by:

 
 
 
 

313. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

315. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

316. The prothallus of fern represents the plant:

 
 
 
 

317. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

319. Cocci types of bacteria are:

 
 
 
 

320. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

323. Embryo formation is not known in :

 
 
 
 

324. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

326. Spirogyra differs from moss protonema in having :

 
 
 
 

327. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

329. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

333. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

335. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

337. The sporangia of Selaginella are attached:

 
 
 
 

338. Gymnosperms could also be called as:

 
 
 
 

339. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

341. Bacteria were first discovered by:

 
 
 
 

342. Lichens are pioneers of vegetation in a :

 
 
 
 

343. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

345. Fern prothallus is:

 
 
 
 

346. In tracheophyta:

 
 
 
 

347. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

351. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

353. Methanogens belong to:

 
 
 
 

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

 
 
 
 

355. 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:

 
 
 
 

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

 
 
 
 

357. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

365. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

370. Indusium in Dryopteris is:

 
 
 
 

371. The ferns are usually found:

 
 
 
 

372. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

375. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. Botulinum toxin effects:

 
 
 
 

379. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

381. Proembryo in Pinus is :

 
 
 
 

382. Water-net is the name of:

 
 
 
 

383. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

387. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

389. Winged pollen grains are found in :

 
 
 
 

390. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

392. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

393. Lichens are ecologically important because :

 
 
 
 

394. Saccharomyces is used in:

 
 
 
 

395. 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?

 
 
 
 

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

 
 
 
 

397. Which class of Protozoa includes all parasitic forms?

 
 
 
 

398. Most resistant spore in bacteria is:

 
 
 
 

399. The leaves of Funaria are :

 
 
 
 

400. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

402. Which is a redwood tree?

 
 
 
 

403. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

405. Protists which are diploid reproduce sexually by:

 
 
 
 

406. Nannandria are:

 
 
 
 

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

 
 
 
 

408. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

411. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

413. Male gametophyte of Selaginella is found:

 
 
 
 

414. The archegonia of Selaginella are differentiated by:

 
 
 
 

415. A gill of Agaricus:

 
 
 
 

416. Diploxylic vascular bundles are found in:

 
 
 
 

417. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

418. Pinus gerardiana is :

 
 
 
 

419. Bacteria differ from viruses in being sensitive to:

 
 
 
 

420. The most primitive vascular plants is:

 
 
 
 

421. Bacteria are considered to be plants because they:

 
 
 
 

422. The similarity between cyanobacteria and bacteria:

 
 
 
 

423. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

425. Select the correct statement: (NEET 2016)

 
 
 
 

426. Some bacteria cannot be killed easily because of:

 
 
 
 

427. White rust of crucifers is caused by:

 
 
 
 

428. The central part of Funaria axis is :

 
 
 
 

429. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

431. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

433. Spermatophyta are characterized by producing:

 
 
 
 

434. The leaves of Funaria are :

 
 
 
 

435. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

437. Vascular tissue is found in :

 
 
 
 

438. Most primitive kind of flower is represented by:

 
 
 
 

439. Which is not true for Escherichia coli?

 
 
 
 

440. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

442. Rhizoids of Riccia are :

 
 
 
 

443. In Cycas microsporangia are borne on:

 
 
 
 

444. Which of the following is true for viruses?

 
 
 
 

445. Each chloroplast in Spirogyra bears :

 
 
 
 

446. Leaf spot of groundnut is caused by :

 
 
 
 

447. Which of the following have algal zone?

 
 
 
 

448. An Hfr bacterium is one that contains:

 
 
 
 

449. Virus and bacteriophage are made-up of:

 
 
 
 

450. Which is a gametophytic tissue?

 
 
 
 

451. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

452. The disease apple scab is caused by:

 
 
 
 

453. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

455. The lichens growing on rocks are called :

 
 
 
 

456. Which of the following shows heterotrichous habit?

 
 
 
 

457. Where does meiosis occur in yeast?

 
 
 
 

458. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

460. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

463. The fungi are usually:

 
 
 
 

464. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

466. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

468. Synzoospore is produced in:

 
 
 
 

469. Lichens are indicators of :

 
 
 
 

470. In Cycas which structure is equivalent to stamen?

 
 
 
 

471. The orders generally have the uniform endings:

 
 
 
 

472. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

476. Cycas is:

 
 
 
 

477. 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:

 
 
 
 

478. Small epidermal swellings due to infection are called :

 
 
 
 

479. Pteridophytes are also known as :

 
 
 
 

480. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

482. Virion refers to:

 
 
 
 

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

 
 
 
 

484. In Cycas:

 
 
 
 

485. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

487. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

489. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

492. Photosynthetic bacteria have:

 
 
 
 

493. Cell walls of Gram-positive bacteria contain:

 
 
 
 

494. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

501. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

503. Mycoplasma are:

 
 
 
 

504. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

506. The order generally ends with:

 
 
 
 

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

 
 
 
 

508. Fern prothallus produces:

 
 
 
 

509. Rice, pea, potato are :

 
 
 
 

510. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

512. Which of the following are included in Tracheophyta?

 
 
 
 

513. Who named prion?

 
 
 
 

514. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

516. Desired type of Cycas can be grown by:

 
 
 
 

517. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

519. The development of sporangium in Selaginella is:

 
 
 
 

520. The coralloid roots are :

 
 
 
 

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

 
 
 
 

522. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

524. The tallest moss in the world is :

 
 
 
 

525. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

530. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

533. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. Standard size of a herbarium sheet is:

 
 
 
 

537. The vascular bundles of Cycas stem are :

 
 
 
 

538. Enzymes are absent in:

 
 
 
 

539. To which class Riccia belongs :

 
 
 
 

540. Choose the correct statement about Spirogyra:

 
 
 
 

541. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

545. Placenta in fern is:

 
 
 
 

546. Which group of algae have an incipient nucleus?

 
 
 
 

547. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

550. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

552. Ovules are not found enclosed in ovary in :

 
 
 
 

553. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

555. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

559. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

563. Infective part of virus was discovered by:

 
 
 
 

564. Most primitive embryophytes are placed in :

 
 
 
 

565. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. . Tapetum develops in:

 
 
 
 

569. Pteridophyta are also called:

 
 
 
 

570. Meristele of fern is:

 
 
 
 

571. In moss, stomata are found:

 
 
 
 

572. Heterotrichous habit means :

 
 
 
 

573. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

575. Lichens are the indicator of pollution :

 
 
 
 

576. In moss, conducting tissue is made up of

 
 
 
 

577. Green plants are classified as :

 
 
 
 

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

 
 
 
 

579. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

581. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

583. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

587. An alga which is rich in proteins:

 
 
 
 

588. What is a vector?

 
 
 
 

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

 
 
 
 

590. All algae have:

 
 
 
 

591. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

595. Woody climbers are known as :

 
 
 
 

596. Viroids have:

 
 
 
 

597. Funaria is a Bryophyta because :

 
 
 
 

598. Pollination drop is:

 
 
 
 

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

 
 
 
 

600. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

602. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

605. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. Which of the following is sago palm?

 
 
 
 

611. Seeds are characteristically found in :

 
 
 
 

612. Pollination in Cycas takes place by :

 
 
 
 

613. The largest alga is:

 
 
 
 

614. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

615. The smallest bacterium is:

 
 
 
 

616. Typhoid in man is caused by:

 
 
 
 

617. Majority of lichens are :

 
 
 
 

618. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

624. The plants of Funaria grow :

 
 
 
 

625. Heterospory is the production of:

 
 
 
 

626. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

633. The fungi are mostly:

 
 
 
 

634. Cryptogams include :

 
 
 
 

635. Which of the following statement is correct?

 
 
 
 

636. The lambda phase is a:

 
 
 
 

637. Some diseases caused by bacteria are:

 
 
 
 

638. Bryophyta have a special character from other plants:

 
 
 
 

639. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

641. Most appropriate word for protozoans is:

 
 
 
 

642. Smallpox is caused by:

 
 
 
 

643. Circular DNA is seen in:

 
 
 
 

644. What is streptomycin?

 
 
 
 

645. Streptomycin is obtained from:

 
 
 
 

646. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

648. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

650. What are plasmids?

 
 
 
 

651.

652. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

654. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

656. Most primitive group of vascular plants are:

 
 
 
 

657. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

659. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

664. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

666. Black rust of wheat is caused by:

 
 
 
 

667. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

669. Lichens reproduce by :

 
 
 
 

670. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

672. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

674. Absorptive nutrition is:

 
 
 
 

675. TMV was isolated in crystalline form by:

 
 
 
 

676. In Cycas the fertilization is:

 
 
 
 

677. The chief characteristic of bryophyta is that :

 
 
 
 

678. Fruits are not found in:

 
 
 
 

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

 
 
 
 

680. The fungi used as food are:

 
 
 
 

681. Gametophyte is the main plant body in :

 
 
 
 

682. Leprosy is caused by:

 
 
 
 

683. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

685. 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:

 
 
 
 

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

 
 
 
 

687. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

690. All protozoans possess:

 
 
 
 

691. The sporophyte of Riccia is represented by :

 
 
 
 

692. Plasmids are:

 
 
 
 

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

 
 
 
 

694. Mycoplasma was discovered by:

 
 
 
 

695. The antibiotic is obtained from:

 
 
 
 

696. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

698. Which is a tautonym?

 
 
 
 

699. Generic name of mango is:

 
 
 
 

700. 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:

 
 
 
 

701. The megasporangium of Selaginella is:

 
 
 
 

702. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

707. The flagella of Chlamydomonas are:

 
 
 
 

708. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

711. In a bacteriophage, DNA is present in:

 
 
 
 

712. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

714. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

717. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

720. Cycas is similar to a mustard plant :

 
 
 
 

721. 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?

 
 
 
 

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

 
 
 
 

723. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

725. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

730. LSD is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

734. The root nodules of leguminous plants contain:

 
 
 
 

735. Fern plants are:

 
 
 
 

736. Bacteria which are spherical are called:

 
 
 
 

737. The source of litmus is :

 
 
 
 

738. Vascular cryptogams is the term used for:

 
 
 
 

739. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

742. 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:

 
 
 
 

743. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

747. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

749. In Gymnosperms endosperm is a:

 
 
 
 

750.

751. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

753. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

755. The seedless plants which possess vascular tissues are:

 
 
 
 

756. Which of the following is a heterosporous pteridophyte?

 
 
 
 

757. E coli is a:

 
 
 
 

758. In moss, calyptra is formed from:

 
 
 
 

759. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

763. Pythium debaryanum is the causative agent of:

 
 
 
 

764. Botulism is a:

 
 
 
 

765. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

767. Vascular cryptogam is the term used for :

 
 
 
 

768. Mixed cropping helps :

 
 
 
 

769. One of the distinctive feature of Spirogyra is :

 
 
 
 

770. Soil fertility is lost by the activities of:

 
 
 
 

771. Black rust of wheat is caused by:

 
 
 
 

772. How is moss different from fern?

 
 
 
 

773. Which causes red tide?

 
 
 
 

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

 
 
 
 

775. Chemosynthetic bacteria are:

 
 
 
 

776. Cyanophage is a virus that attacks:

 
 
 
 

777. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

779. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

782. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

787. Oswald Tippo’s classification was based on :

 
 
 
 

788. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

790. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

792. Select the wrong statement:

 
 
 
 

793. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

795. 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:

 
 
 
 

796. Among the algae kelps are :

 
 
 
 

797. Which part of Riccia bears nurse cells?

 
 
 
 

798. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

800. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

802. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. Polystelic condition is found in:

 
 
 
 

808. Black rust of wheat is caused by:

 
 
 
 

809. Lichens show :

 
 
 
 

810. Protistan algae obtain their food as:

 
 
 
 

811. Disease resistant plant varieties can be produced by :

 
 
 
 

812. Helotism word is used for the symbiosis between :

 
 
 
 

813. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

817. In binomial system most of the words are:

 
 
 
 

818. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

821. Gram stain is used to:

 
 
 
 

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

 
 
 
 

823. Bacteriophages have been used as:

 
 
 
 

824. Which of the following is a parasitic algae?

 
 
 
 

825. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

828. Which lichen is called Reindeer moss?

 
 
 
 

829. Lichens form the first community in

 
 
 
 

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

 
 
 
 

831. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

833. The first to isolate a plant virus was:

 
 
 
 

834. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

836. The fungi that grow on wood are called:

 
 
 
 

837. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

840. Cellular slime mold is:

 
 
 
 

841. The leaf of Cycas shows:

 
 
 
 

842. The male gametes of Pinus are :

 
 
 
 

843. Viruses are considered to be:

 
 
 
 

844. Saccharomyces ludwigii ascus produces:

 
 
 
 

845. Ovary is absent in:

 
 
 
 

846. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

848. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

850. Saccharomyces is well known for:

 
 
 
 

851. The sori in Dryopteris are found on:

 
 
 
 

852. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

856. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

859. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. Which is absent from the xylem of Cycas?

 
 
 
 

864. Fruits are not found in Cycas because: