Quiz_Random

1. Which is the nuclear material in bacteria?

 
 
 
 

2. What is special feature of fern archegonia?

 
 
 
 

3. Ovary is absent in :

 
 
 
 

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

 
 
 
 

5. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. The nucleus of bacteria is:

 
 
 
 

13. Sleeping sickness disease in man is caused by:

 
 
 
 

14. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

18. Ergot of rye is caused by:

 
 
 
 

19. Redness of red sea is due to :

 
 
 
 

20. Detailed study of bacteriophage was made by:

 
 
 
 

21. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

23. Antibiotics cure the disease by:

 
 
 
 

24. Azolla and Salvinia both are:

 
 
 
 

25. Nitrogen-fixing bacteria may be located:

 
 
 
 

26. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

28. Mycoplasma contains:

 
 
 
 

29. The archegonia of Selaginella are differentiated by:

 
 
 
 

30. The microsporophylls on the cone of Cycas are :

 
 
 
 

31. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

33. Most primitive kind of flower is represented by:

 
 
 
 

34. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

36. Where does meiosis occur in yeast?

 
 
 
 

37. Diphtheria is caused by:

 
 
 
 

38. Streptomycin is obtained from:

 
 
 
 

39. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

41. The leaves of Funaria are :

 
 
 
 

42. Bacteria growing on synthetic medium are called:

 
 
 
 

43. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

45. Sexual reproduction in Rhizopus is by:

 
 
 
 

46. The root nodules of leguminous plants contain:

 
 
 
 

47. Embryophyta includes:

 
 
 
 

48. Each chloroplast in Spirogyra bears :

 
 
 
 

49. Funaria is :

 
 
 
 

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

 
 
 
 

51. Spores of which plants have chloroplast:

 
 
 
 

52. Cell walls of Gram-positive bacteria contain:

 
 
 
 

53. Soil fertility is lost by the activities of:

 
 
 
 

54. What is a vector?

 
 
 
 

55. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

56. The roots of Cycas are :

 
 
 
 

57. The sporophyte of Riccia is represented by :

 
 
 
 

58. Pythium debaryanum is the causative agent of:

 
 
 
 

59. An alga which is rich in proteins:

 
 
 
 

60. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

62. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

64. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

66. Disease resistant plant varieties can be produced by :

 
 
 
 

67. Which of the following is a heterosporous pteridophyte?

 
 
 
 

68. Botulism is a:

 
 
 
 

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

 
 
 
 

70. Sporophyte of fern is:

 
 
 
 

71. Which of the following is a parasitic algae?

 
 
 
 

72. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

74. Yeast is a source of:

 
 
 
 

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

 
 
 
 

76. Viroids have:

 
 
 
 

77. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

85. Which of the following does not contain chlorophyll?

 
 
 
 

86. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Pneumonia is caused by:

 
 
 
 

91. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

93. Penicillin is obtained from:

 
 
 
 

94. Rice, pea, potato are :

 
 
 
 

95. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

97. Some bacteria cannot be killed easily because of:

 
 
 
 

98. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

103. Bacteria are placed under:

 
 
 
 

104. The photosynthetic protists are:

 
 
 
 

105. Pteridophyta are also called:

 
 
 
 

106. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

109. An Hfr bacterium is one that contains:

 
 
 
 

110. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

112. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

114. Ovary is absent in:

 
 
 
 

115. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. Which of the following is sago palm?

 
 
 
 

119. The development of sporangium in Selaginella is:

 
 
 
 

120. Funaria can be differentiated from Cycas :

 
 
 
 

121. The leaves of Funaria are :

 
 
 
 

122. Reproduction in Rhizopus is:

 
 
 
 

123. The fern plant is:

 
 
 
 

124. Iodine is obtained from:

 
 
 
 

125. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

129. In a bacteriophage, DNA is present in:

 
 
 
 

130. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. The zoospores of Ulothrix are :

 
 
 
 

134. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

137. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

140. Bacteria which are spherical are called:

 
 
 
 

141. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

142. Viruses have:

 
 
 
 

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

 
 
 
 

144. The first to isolate a plant virus was:

 
 
 
 

145. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

147. Lichens show :

 
 
 
 

148. 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?

 
 
 
 

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

 
 
 
 

150. Pinus gerardiana is :

 
 
 
 

151. 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:

 
 
 
 

152. Asexual reproductive body of Volvox is called:

 
 
 
 

153. In Pteris, the archegonia are present:

 
 
 
 

154. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

159. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. The sexual reproductive organs in Rhizopus are:

 
 
 
 

163. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

165. The male gametes of Pinus are :

 
 
 
 

166. Cycas is different from mango in :

 
 
 
 

167. In Cycas which structure is equivalent to stamen?

 
 
 
 

168. Which is an exception to cell theory?

 
 
 
 

169. All protozoans possess:

 
 
 
 

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

 
 
 
 

171. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

172. Aflatoxin is produced by:

 
 
 
 

173. Pasteur is famous for his:

 
 
 
 

174. Which is a gametophytic tissue?

 
 
 
 

175. Which fixes atmospheric nitrogen?

 
 
 
 

176. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

177. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

178. Winged seeds are found in :

 
 
 
 

179. Kuru, a human disease is caused by:

 
 
 
 

180. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

182. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

184. Proembryo in Pinus is :

 
 
 
 

185. Total parasites belong to:

 
 
 
 

186. Standard size of a herbarium sheet is:

 
 
 
 

187. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

191. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

193. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

194. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

199. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

202. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

204. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

206. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

208. Early blight of potato is caused by:

 
 
 
 

209. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

218. Fruits are not found in Cycas because:

 
 
 
 

219. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

228. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

230. Pinus microsporophyll bears:

 
 
 
 

231.

232. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

237. All algae have:

 
 
 
 

238. . Tapetum develops in:

 
 
 
 

239. Majority of lichens are :

 
 
 
 

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

 
 
 
 

241. To which class Riccia belongs :

 
 
 
 

242. The tree fern is:

 
 
 
 

243. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

245. Bacteriophages have been used as:

 
 
 
 

246. Vascular cryptogam is the term used for :

 
 
 
 

247. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

248. Downy mildew disease is caused by :

 
 
 
 

249. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. The tallest moss in the world is :

 
 
 
 

256. Milk is converted to curd by:

 
 
 
 

257. Which bacteria convert nitrate into nitrogen?

 
 
 
 

258. Most common type of conjugation in Spirogyra is :

 
 
 
 

259. Enzymes are absent in:

 
 
 
 

260. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

262. Mycoplasmas are not viruses in nature because:

 
 
 
 

263. Quarantine regulations are concerned with:

 
 
 
 

264. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. Cryptogams include :

 
 
 
 

268. Vegetative reproduction in Cycas is by means of :

 
 
 
 

269. The zygospore in Rhizopus on germination forms:

 
 
 
 

270. Virion refers to:

 
 
 
 

271. Which have the largest antherozoid?

 
 
 
 

272. Chemosynthetic bacteria are:

 
 
 
 

273. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

277. Lichen show :

 
 
 
 

278. Halophiles are the bacteria that require for growth:

 
 
 
 

279. Aflatoxin is produced as a product in :

 
 
 
 

280. In moss, sporogenous tissue arises from:

 
 
 
 

281. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

283. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

286. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

288. Spirogyra differs from moss protonema in having :

 
 
 
 

289. Photosynthetic bacteria have:

 
 
 
 

290. In moss, conducting tissue is made up of

 
 
 
 

291. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

293. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

300. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

302. Psilotum is:

 
 
 
 

303. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

306. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. Fern plants are:

 
 
 
 

310. Which is a fungicide?

 
 
 
 

311. Indusium in Dryopteris is:

 
 
 
 

312. Metulae are found in:

 
 
 
 

313. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

315. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

321. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. Who discovered heterothallism in fungi?

 
 
 
 

330. Heterospory is the production of:

 
 
 
 

331. Cycas revoluta is widely grown as :

 
 
 
 

332. Methanogens belong to:

 
 
 
 

333. The archegonia in Selaginella develop on:

 
 
 
 

334. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

336. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

338. Mycoplasma are:

 
 
 
 

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

 
 
 
 

340. Bryophyta have been placed in cryptogams because:

 
 
 
 

341. The lambda phase is a:

 
 
 
 

342. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

345. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

347. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

349. Absorptive nutrition is:

 
 
 
 

350. The antherozoids of Funaria are :

 
 
 
 

351. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

359. Fruits are not found in:

 
 
 
 

360. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

363. Facultative parasite is:

 
 
 
 

364. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

366. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

369. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

372. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

376. To which country Antony van Leeuwenhoek belong?

 
 
 
 

377. Isomorphic type alternation of generation is found in:

 
 
 
 

378. Male gametes in Dryopteris are:

 
 
 
 

379. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

382. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

384. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

386. Liverworts are included in :

 
 
 
 

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

 
 
 
 

388. In binomial system most of the words are:

 
 
 
 

389. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

391. Late blight of potato is caused by:

 
 
 
 

392. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

393. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

399. Green plants are classified as:

 
 
 
 

400. Vascular cryptogams is the term used for:

 
 
 
 

401. What are plasmids?

 
 
 
 

402. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

404. Black rust of wheat is caused by:

 
 
 
 

405. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

407. Most of the algae are :

 
 
 
 

408. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

410. Synzoospore is produced in:

 
 
 
 

411. The disease symptom necrosis refers to :

 
 
 
 

412. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

415. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

417. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. LSD is:

 
 
 
 

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

 
 
 
 

425. Which is not found in bacteria?

 
 
 
 

426.

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

 
 
 
 

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

 
 
 
 

429. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

432. Fern phloem lacks:

 
 
 
 

433. Nannandria are:

 
 
 
 

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

 
 
 
 

435. Which one of the following is a monocot?

 
 
 
 

436. 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:

 
 
 
 

437. Cycas is :

 
 
 
 

438. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

440. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

442. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

445. The leafy fern plant represents the:

 
 
 
 

446. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

448. The central part of Funaria axis is :

 
 
 
 

449. Pseudomycelium is found in:

 
 
 
 

450. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

454. The fungi used as food are:

 
 
 
 

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

 
 
 
 

456. How is moss different from fern?

 
 
 
 

457. 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?

 
 
 
 

458. The Rhizopus gametes are formed in:

 
 
 
 

459. The fungi are usually:

 
 
 
 

460. The sporangiophores in Rhizopus are:

 
 
 
 

461. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

463. In angiosperms double fertilization represents:

 
 
 
 

464. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

466. Ergot is obtained from :

 
 
 
 

467. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

470. Photoautotrophic bacteria have:

 
 
 
 

471. 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?

 
 
 
 

472. What is streptomycin?

 
 
 
 

473. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

476. Select the correct statement: (NEET 2016)

 
 
 
 

477. True sexuality is not found in:

 
 
 
 

478. Among the algae kelps are :

 
 
 
 

479. Embryo formation is not known in :

 
 
 
 

480. Rhizopus and yeast are usually:

 
 
 
 

481. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

483. In moss, calyptra is formed from:

 
 
 
 

484. Which of the following statements is not correct?

 
 
 
 

485. Bentham and Hooker placed gymnosperms:

 
 
 
 

486. Which statement is wrong in regard to bacteria?

 
 
 
 

487. Lichens form the first community in

 
 
 
 

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

 
 
 
 

489. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

491. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

493. Helotism word is used for the symbiosis between :

 
 
 
 

494. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

497. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

500. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

503. Which of the following are absent in Mycoplasma?

 
 
 
 

504. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

506. The term stele was given by:

 
 
 
 

507. Cycas plant in appearance resembles :

 
 
 
 

508. The largest known bacterium is:

 
 
 
 

509. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

512. The megaspore of Selaginella on germination produces:

 
 
 
 

513. Triple antigen injection or vaccine are for:

 
 
 
 

514. Woody climbers are known as :

 
 
 
 

515. Fern prothallus is:

 
 
 
 

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

 
 
 
 

517. Sexual reproduction of lichen is due to :

 
 
 
 

518. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

523. Which is an edible fungus?

 
 
 
 

524. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

527. Red rot of sugarcane is caused by :

 
 
 
 

528. The role of meiosis is for:

 
 
 
 

529. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

531.

532. The upper region of moss capsule is :

 
 
 
 

533. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

539. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

541. Longest known virus is:

 
 
 
 

542. Mycoplasma are sensitive to:

 
 
 
 

543. Most of the lichens are composed of :

 
 
 
 

544. The teeth of peristome of Funaria are :

 
 
 
 

545. The most primitive vascular plants is:

 
 
 
 

546. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

548. Oswald Tippo’s classification was based on :

 
 
 
 

549. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

554. The smallest bacterium is:

 
 
 
 

555. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

557. Multicellular and jacketed sex organs are found in :

 
 
 
 

558. Some biologists have used the term Mycetozoa for:

 
 
 
 

559. Black rust of wheat is caused by:

 
 
 
 

560. Siphonogamy is found in:

 
 
 
 

561. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

564. Desired type of Cycas can be grown by:

 
 
 
 

565. Pollination drop is:

 
 
 
 

566. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

568. E coli is a:

 
 
 
 

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

 
 
 
 

570.

 

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

 
 
 
 

572. The order generally ends with:

 
 
 
 

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

 
 
 
 

574. The gametophyte of moss has distinct phases :

 
 
 
 

575. Embryophyta includes :

 
 
 
 

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

 
 
 
 

577. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

581. 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:

 
 
 
 

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

 
 
 
 

583. In Cycas the fertilization is:

 
 
 
 

584. The disease apple scab is caused by:

 
 
 
 

585. Which among the following is a shrub?

 
 
 
 

586. Facultative saprophyte is:

 
 
 
 

587. Fern prothallus produces:

 
 
 
 

588. Some diseases caused by bacteria are:

 
 
 
 

589. Green plants are classified as :

 
 
 
 

590. The genetic material of poxvirus is:

 
 
 
 

591. Polystelic condition is found in:

 
 
 
 

592. What is the role of nitrifying bacteria?

 
 
 
 

593. Spermatophyta are characterized by producing:

 
 
 
 

594. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

596. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

598. In Cycas microsporangia are borne on:

 
 
 
 

599. Lichens reproduce by :

 
 
 
 

600. Most appropriate word for protozoans is:

 
 
 
 

601. Which of the following have a prokaryotic cell?

 
 
 
 

602. Gram stain is used to:

 
 
 
 

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

 
 
 
 

604. Penicillin was discovered by:

 
 
 
 

605. Ulothrix produces :

 
 
 
 

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

 
 
 
 

607. Viruses are considered to be:

 
 
 
 

608. The megasporangium of Selaginella is:

 
 
 
 

609. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

611. Bacteria were first discovered by:

 
 
 
 

612. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

614. Cyathia is characterized by:

 
 
 
 

615. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

617. Select the wrong statement:

 
 
 
 

618. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

622. Endemic plants are characterised by their:

 
 
 
 

623. Which condition is found in Cycas?

 
 
 
 

624. Oswald Tippo’s classification is:

 
 
 
 

625. The stele of Dryopteris is a:

 
 
 
 

626. The source of litmus is :

 
 
 
 

627. In Gymnocarpeae the fruiting body is :

 
 
 
 

628. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

630. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

632. Lichens reproduce by :

 
 
 
 

633. In Funaria :

 
 
 
 

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

 
 
 
 

635. Rhizoids of Riccia are :

 
 
 
 

636. The development of Selaginella embryo is:

 
 
 
 

637. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

642. Which of the following are included in Tracheophyta?

 
 
 
 

643. Coenogamete is found in:

 
 
 
 

644. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

646. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

650. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

653. Male gametophyte of Selaginella is found:

 
 
 
 

654. The phloem of vascular system of Cycas is :

 
 
 
 

655. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

661. Number of capsomeres forming capsid of TMV is:

 
 
 
 

662. Bacteria differ from viruses in being sensitive to:

 
 
 
 

663. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

667. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

669. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

671. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

673. 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:

 
 
 
 

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

 
 
 
 

675. Club moss is the common name of :

 
 
 
 

676. Lichens are the indicator of pollution :

 
 
 
 

677. The sporophyte of Riccia is :

 
 
 
 

678. The fungi are mostly:

 
 
 
 

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

 
 
 
 

680. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

682. Which of the following shows heterotrichous habit?

 
 
 
 

683. The ferns are usually found:

 
 
 
 

684. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

687. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

689. Azolla growing in paddy fields helps in:

 
 
 
 

690. Saccharomyces is well known for:

 
 
 
 

691. Water-net is the name of:

 
 
 
 

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

 
 
 
 

693. 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?

 
 
 
 

694. The sori in Dryopteris are found on:

 
 
 
 

695. Etiology includes the study of :

 
 
 
 

696. Pollination in Cycas takes place by :

 
 
 
 

697. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

699. The mycelium of Rhizopus is:

 
 
 
 

700. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

703. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

704. What is absent in Deuteromycetes?

 
 
 
 

705. Cocci types of bacteria are:

 
 
 
 

706. NBG of Lucknow is now named as:

 
 
 
 

707. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

710. Meristele of fern is:

 
 
 
 

711. Which of the following is a monocot?

 
 
 
 

712. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

714. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

716. Black rust of wheat is caused by:

 
 
 
 

717. The flagella of Chlamydomonas are:

 
 
 
 

718. Which group of algae have an incipient nucleus?

 
 
 
 

719. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

721. Which is a tautonym?

 
 
 
 

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

 
 
 
 

723. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

727. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

729. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

731. Water-borne bacterial diseases are:

 
 
 
 

732. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

734. Who among the following discovered virus?

 
 
 
 

735. Who discovered cyanophages?

 
 
 
 

736. Which is the correct statement about Selaginella?

 
 
 
 

737. Typhoid in man is caused by:

 
 
 
 

738. Centric discoid form of diatom is:

 
 
 
 

739. Which of the following applies to Selaginella?

 
 
 
 

740. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

742. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

743. In Selaginella, the microsporangia are:

 
 
 
 

744. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

746. The Rhizopus is:

 
 
 
 

747. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

751. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Pasteurized milk is:

 
 
 
 

758. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

761. Chemosynthetic bacteria are:

 
 
 
 

762. Botulinum toxin effects:

 
 
 
 

763. Fruiting body of lichens is :

 
 
 
 

764. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

766. Generic name of mango is:

 
 
 
 

767. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

769. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

772. 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:

 
 
 
 

773. In Cycas:

 
 
 
 

774. Which causes red tide?

 
 
 
 

775. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

777. Bryophyta have a special character from other plants:

 
 
 
 

778. 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:

 
 
 
 

779. Reserve food in Euglena is:

 
 
 
 

780. Cycas is:

 
 
 
 

781. Pinus is:

 
 
 
 

782. Heterotrichous habit means :

 
 
 
 

783. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

785. Maximum diversity of life forms occurs in :

 
 
 
 

786. The chloroplast in Ulothrix is :

 
 
 
 

787. Zoogametes are not found in:

 
 
 
 

788. Mixed cropping helps :

 
 
 
 

789. White rust of crucifers is caused by:

 
 
 
 

790. The alga, Spirogyra are found in :

 
 
 
 

791. The largest alga is:

 
 
 
 

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

 
 
 
 

793. Which lichen is called Reindeer moss?

 
 
 
 

794. Pasteurization of milk involves heating for:

 
 
 
 

795. The fungi that grow on wood are called:

 
 
 
 

796. Fruits are not found in :

 
 
 
 

797. Climbers are found in genus:

 
 
 
 

798. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

800. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. All archaebacteria lack:

 
 
 
 

805. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

806. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

808. Transfusion tissue is present in the leaflet of:

 
 
 
 

809. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

813. Select the wrong statement:

 
 
 
 

814. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

818. Seeds are characteristically found in :

 
 
 
 

819. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

824. Discovery of penicillin was based on:

 
 
 
 

825. Saccharomyces is used in:

 
 
 
 

826. Placenta in fern is:

 
 
 
 

827. Who named prion?

 
 
 
 

828. The coralloid roots are :

 
 
 
 

829. Cap cells are found in the filament of:

 
 
 
 

830. Who discovered streptomycin?

 
 
 
 

831. Mycoplasma was discovered by:

 
 
 
 

832. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

837. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

838. Smut of maize is caused by :

 
 
 
 

839. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. Which of the following have algal zone?

 
 
 
 

844. Bacteriophage consists of:

 
 
 
 

845. Seeds are characteristically found in:

 
 
 
 

846. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

848. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

851. In dinoflagellates, the two flagella are:

 
 
 
 

852. Bacteria are considered to be plants because they:

 
 
 
 

853. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

855. Leaf spot of groundnut is caused by :

 
 
 
 

856. The lichens growing on rocks are called :

 
 
 
 

857. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

859. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

862. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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