Quiz_Random

1. Vascular cryptogam is the term used for :

 
 
 
 

2. Bryophyta have a special character from other plants:

 
 
 
 

3. Tautonyms are illegitimate in:

 
 
 
 

4. The central part of Funaria axis is :

 
 
 
 

5. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

7. Bivalved siliceous shell or frustule occur in:

 
 
 
 

8. The gametophyte of fern bears:

 
 
 
 

9. Climbers are found in genus:

 
 
 
 

10. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

11. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Bacteriophage consists of:

 
 
 
 

16. Which of the following does not contain chlorophyll?

 
 
 
 

17. 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:

 
 
 
 

18. Endemic plants are characterised by their:

 
 
 
 

19. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

23. Most primitive embryophytes are placed in:

 
 
 
 

24. In moss, conducting tissue is made up of

 
 
 
 

25. Placenta in fern is:

 
 
 
 

26. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

28. Aflatoxin is produced as a product in :

 
 
 
 

29. Why is Cycas called a living fossil?

 
 
 
 

30. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

32. Bacteria are found everywhere, except:

 
 
 
 

33. A gill of Agaricus:

 
 
 
 

34. The mycelium of Rhizopus is:

 
 
 
 

35. Etiology includes the study of :

 
 
 
 

36. 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:

 
 
 
 

37. The antibiotic is obtained from:

 
 
 
 

38. The ferns are usually found:

 
 
 
 

39. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

41. Which of the following have algal zone?

 
 
 
 

42. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. Cyathia is characterized by:

 
 
 
 

46. Leaf spot of groundnut is caused by :

 
 
 
 

47. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Water-borne bacterial diseases are:

 
 
 
 

58. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

60. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

65. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

68. The roots of Cycas are :

 
 
 
 

69. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

71. Mucilaginous canals in Cycas are found in :

 
 
 
 

72. Mycoplasma contains:

 
 
 
 

73. Among the algae kelps are :

 
 
 
 

74. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

76. The largest known bacterium is:

 
 
 
 

77. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

79. Viruses have:

 
 
 
 

80. Discovery of penicillin was based on:

 
 
 
 

81. The order generally ends with:

 
 
 
 

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

 
 
 
 

83. In moss, reduction division occurs in :

 
 
 
 

84. The leaves of Funaria are :

 
 
 
 

85. Spermatophyta are characterized by producing:

 
 
 
 

86. In dinoflagellates, the two flagella are:

 
 
 
 

87. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Maximum diversity of life forms occurs in :

 
 
 
 

92. In Cycas microsporangia are borne on:

 
 
 
 

93. Which of the following is sago palm?

 
 
 
 

94. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

96. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

102. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

103. Select the wrong statement:

 
 
 
 

104. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112.

113. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

115. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

117. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. Ethylene oxide is widely used to:

 
 
 
 

123. Gram stain is used to:

 
 
 
 

124. Lichens are pioneers of vegetation in a :

 
 
 
 

125. Cycas is:

 
 
 
 

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

 
 
 
 

127. Which is a fungicide?

 
 
 
 

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

 
 
 
 

129. Banana bunchy top is caused by :

 
 
 
 

130. An Hfr bacterium is one that contains:

 
 
 
 

131. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

133. The Rhizopus is:

 
 
 
 

134. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

136. What is streptomycin?

 
 
 
 

137. Soil fertility is lost by the activities of:

 
 
 
 

138. Mycoplasma is different from bacteria due to:

 
 
 
 

139. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

141. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

143. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

145. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

147. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

151. . Tapetum develops in:

 
 
 
 

152. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

155. Milk is converted to curd by:

 
 
 
 

156. Helotism word is used for the symbiosis between :

 
 
 
 

157. Which statement is wrong in regard to bacteria?

 
 
 
 

158. Bacteria which are spherical are called:

 
 
 
 

159. In moss, sporogenous tissue arises from:

 
 
 
 

160. The megasporangium of Selaginella is:

 
 
 
 

161. Lichens show :

 
 
 
 

162. Bacteria growing on synthetic medium are called:

 
 
 
 

163. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. Fruits are not found in :

 
 
 
 

169. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

171. In moss, calyptra is formed from:

 
 
 
 

172. Meiosis in Ulothrix takes place:

 
 
 
 

173. Linnaeus is credited with introducing:

 
 
 
 

174. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

176. The smallest bacterium is:

 
 
 
 

177. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

180. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

183. Select the correct statement: (NEET 2016)

 
 
 
 

184. Redness of red sea is due to :

 
 
 
 

185. Acellular slime mold is/are:

 
 
 
 

186. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

188. Standard size of a herbarium sheet is:

 
 
 
 

189. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

191. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

193. The archegonia of Selaginella are differentiated by:

 
 
 
 

194. Roots are absent in :

 
 
 
 

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

 
 
 
 

196. Who discovered cyanophages?

 
 
 
 

197. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

199. Spermatophyta are characterized by producing:

 
 
 
 

200. Diphtheria is caused by:

 
 
 
 

201. Green plants are classified as :

 
 
 
 

202. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

204. The fungi used as food are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

207. The largest alga is:

 
 
 
 

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

 
 
 
 

209. Botulism is a:

 
 
 
 

210. Metulae are found in:

 
 
 
 

211. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

212. Economic importance of bacteria lies in their being:

 
 
 
 

213. Which of the following are included in Tracheophyta?

 
 
 
 

214. Which is an exception to cell theory?

 
 
 
 

215. Early blight of potato is caused by:

 
 
 
 

216. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

219. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

222. The source of litmus is :

 
 
 
 

223. Coenogamete is found in:

 
 
 
 

224. Lichens reproduce by :

 
 
 
 

225. Ovules are not found enclosed in ovary in :

 
 
 
 

226. Who discovered streptomycin?

 
 
 
 

227. Selaginella differs from Moss in having:

 
 
 
 

228. Pteridophyta are also called:

 
 
 
 

229. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

233. Fairy ring is the name given to:

 
 
 
 

234. Who among the following discovered virus?

 
 
 
 

235. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

237. E coli is a:

 
 
 
 

238. Ovules are not found enclosed in ovary of:

 
 
 
 

239. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

242. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

246. To which class Riccia belongs :

 
 
 
 

247. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

249. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

251. The upper region of moss capsule is :

 
 
 
 

252. 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:

 
 
 
 

253. NBG of Lucknow is now named as:

 
 
 
 

254. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

255. Aflatoxin is produced by:

 
 
 
 

256. Most primitive embryophytes are placed in :

 
 
 
 

257. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

260. The root nodules of leguminous plants contain:

 
 
 
 

261. Leprosy is caused by:

 
 
 
 

262. Mycoplasmas are not viruses in nature because:

 
 
 
 

263. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

265. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

267. The sporophyte of Riccia is :

 
 
 
 

268. The role of meiosis is for:

 
 
 
 

269. Protists which are diploid reproduce sexually by:

 
 
 
 

270. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

273. Centric discoid form of diatom is:

 
 
 
 

274. Kuru, a human disease is caused by:

 
 
 
 

275. The disease symptom necrosis refers to :

 
 
 
 

276. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

278. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. Vascular tissue is found in :

 
 
 
 

284. John Hutchinson divided dicots into two divisions:

 
 
 
 

285. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

288. Fruiting body of lichens is :

 
 
 
 

289. Which fixes atmospheric nitrogen?

 
 
 
 

290. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

294. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299. Yeast grows more rapidly in:

 
 
 
 

300. An alga which is rich in proteins:

 
 
 
 

301. The flagella of Chlamydomonas are:

 
 
 
 

302. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

304. In Herpes virus DNA is:

 
 
 
 

305. Sexual reproduction in Rhizopus is by:

 
 
 
 

306. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

308. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

310. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

313. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

318. Which is an edible fungus?

 
 
 
 

319. Cycas revoluta is widely grown as :

 
 
 
 

320. The microsporophylls on the cone of Cycas are :

 
 
 
 

321. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

325. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

326. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

330. Chemosynthetic bacteria are:

 
 
 
 

331. Viroids have:

 
 
 
 

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

 
 
 
 

333. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

338. Facultative parasite is:

 
 
 
 

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

 
 
 
 

340. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

345. Pasteurized milk is:

 
 
 
 

346. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

347. Halophiles are the bacteria that require for growth:

 
 
 
 

348. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

350. Ulothrix produces :

 
 
 
 

351. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

352. Cycas is different from mango in :

 
 
 
 

353. What is a vector?

 
 
 
 

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

 
 
 
 

355. Saccharomyces is used in:

 
 
 
 

356. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

368. Male gametophyte of Selaginella is found:

 
 
 
 

369. The fern plant is:

 
 
 
 

370. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

372. Cell walls of Gram-positive bacteria contain:

 
 
 
 

373. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

375. The fungi that grow on wood are called:

 
 
 
 

376. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

379. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

381. Which causes red tide?

 
 
 
 

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

 
 
 
 

383. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

384. The prothallus of fern represents the plant:

 
 
 
 

385. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

387. 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?

 
 
 
 

388. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

390. The genetic material of poxvirus is:

 
 
 
 

391. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

394. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

396. Pythium debaryanum is the causative agent of:

 
 
 
 

397.

 

398. How is moss different from fern?

 
 
 
 

399. Late blight of potato is caused by:

 
 
 
 

400. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

402. 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:

 
 
 
 

403. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

405. The young leaves of Cycas have :

 
 
 
 

406. Protistan algae obtain their food as:

 
 
 
 

407. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

409. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

411. In Cycas which structure is equivalent to stamen?

 
 
 
 

412. LSD is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

417. Ergot of rye is caused by:

 
 
 
 

418. Winged seeds are found in :

 
 
 
 

419. Which group of algae have an incipient nucleus?

 
 
 
 

420. Longest known virus is:

 
 
 
 

421. 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?

 
 
 
 

422. Which is a tautonym?

 
 
 
 

423. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

425. Which is not true for Escherichia coli?

 
 
 
 

426. The leaf of Cycas shows:

 
 
 
 

427. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. Liverworts are included in :

 
 
 
 

432. Viruses are commonly transmitted in plants through:

 
 
 
 

433. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

435. Woody climbers are known as :

 
 
 
 

436. Pteridophytes are also known as :

 
 
 
 

437. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

439. Interferon is a:

 
 
 
 

440. Pinus microsporophyll bears:

 
 
 
 

441. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

443. Choose the correct statement about Spirogyra:

 
 
 
 

444. Special feature of pollen grains of Pinus is :

 
 
 
 

445. Small epidermal swellings due to infection are called :

 
 
 
 

446. Who discovered heterothallism in fungi?

 
 
 
 

447. Water-net is the name of:

 
 
 
 

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

 
 
 
 

449. The stele of Dryopteris is a:

 
 
 
 

450. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

452. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

457. Number of capsomeres forming capsid of TMV is:

 
 
 
 

458. How a fern differs from a moss?

 
 
 
 

459. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. Cycas is :

 
 
 
 

463. Cryptogams include :

 
 
 
 

464. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

466. The nucleus of bacteria is:

 
 
 
 

467. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

470. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

471. Enteric bacteria are those bacteria that live:

 
 
 
 

472. Funaria are commonly found :

 
 
 
 

473. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

476. In a bacteriophage, DNA is present in:

 
 
 
 

477. Which bacteria convert nitrate into nitrogen?

 
 
 
 

478. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

479. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. In angiosperms double fertilization represents:

 
 
 
 

483. Asexual reproductive body of Volvox is called:

 
 
 
 

484. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

487. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

490. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

492. Gymnosperms could also be called as:

 
 
 
 

493. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

495. Green plants are classified as:

 
 
 
 

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

 
 
 
 

497. Vegetative reproduction in Cycas is by means of :

 
 
 
 

498. Which condition is found in Cycas?

 
 
 
 

499. Ovary is absent in :

 
 
 
 

500. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

503. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Bacteria are placed under:

 
 
 
 

507. All archaebacteria lack:

 
 
 
 

508. Pollination in Pinus is :

 
 
 
 

509. What are plasmids?

 
 
 
 

510. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

512. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

516. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

520. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

527. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

531. Sporophyte of fern is:

 
 
 
 

532. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

533. Which of the following are absent in Mycoplasma?

 
 
 
 

534. Mycoplasma are:

 
 
 
 

535. Streptomyces falls under:

 
 
 
 

536. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

538. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

540. Meristele of fern is:

 
 
 
 

541. Heterospory and ligulate leaves are a feature of:

 
 
 
 

542. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

543. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

546. Some bacteria cannot be killed easily because of:

 
 
 
 

547. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

550. The orders generally have the uniform endings:

 
 
 
 

551. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

556. Pollination drop is:

 
 
 
 

557. Which of the following are included in Tracheophyta?

 
 
 
 

558. The spur of Pinus roxburghii has :

 
 
 
 

559. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

561. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

564. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

566. The chloroplast of Chlamydomonas are:

 
 
 
 

567. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

575. Which is absent from the xylem of Cycas?

 
 
 
 

576. Ginkgo biloba is a:

 
 
 
 

577. Mycoplasma was discovered by:

 
 
 
 

578. Who named prion?

 
 
 
 

579. The seedless plants which possess vascular tissues are:

 
 
 
 

580. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

582. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

584. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

585. Fern plants are:

 
 
 
 

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

 
 
 
 

587. Total parasites belong to:

 
 
 
 

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

 
 
 
 

589. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

592. Citrus canker is caused by :

 
 
 
 

593. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

595. Ovary is absent in:

 
 
 
 

596. Ovules are not found enclosed in ovary in :

 
 
 
 

597. Saccharomyces is well known for:

 
 
 
 

598. Vascular cryptogams is the term used for:

 
 
 
 

599. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

601. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

604. Zoogametes are not found in:

 
 
 
 

605. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

609. Chemosynthetic bacteria are:

 
 
 
 

610. TMV was isolated in crystalline form by:

 
 
 
 

611. The lambda phase is a:

 
 
 
 

612. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

614. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

616. All protozoans possess:

 
 
 
 

617. Multicellular and jacketed sex organs are found in :

 
 
 
 

618. Bryophyta have been placed in cryptogams because:

 
 
 
 

619. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

621. Iodine is obtained from:

 
 
 
 

622. The plants of Funaria grow :

 
 
 
 

623. Generic name of mango is:

 
 
 
 

624. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

626. Siphonogamy is found in:

 
 
 
 

627. In moss, peristomial teeth are:

 
 
 
 

628. 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:

 
 
 
 

629. Which of the following lichens is harmful?

 
 
 
 

630. Quarantine regulations are concerned with:

 
 
 
 

631. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

637. Penicillin was discovered by:

 
 
 
 

638. The sori in Dryopteris are found on:

 
 
 
 

639. The DNA of E coli is:

 
 
 
 

640. The development of Selaginella embryo is:

 
 
 
 

641. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. Heterocysts are found in :

 
 
 
 

645. Which of the following is a heterosporous pteridophyte?

 
 
 
 

646. What is special feature of fern archegonia?

 
 
 
 

647. Most of the algae are :

 
 
 
 

648. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

650. The gametophyte of moss has distinct phases :

 
 
 
 

651. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

653. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

655. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. Fertility of the soil is increased by:

 
 
 
 

659. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

662. The term stele was given by:

 
 
 
 

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

 
 
 
 

664. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

665. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

667. Chief constituents of bordeaux mixture are :

 
 
 
 

668. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

670. Germination of the seed of Pinus is :

 
 
 
 

671. Select the wrong statement:

 
 
 
 

672. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

676. Little leaf disease of Brinjal is caused by:

 
 
 
 

677. Black rust of wheat is caused by:

 
 
 
 

678. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

680. Methanogens belong to:

 
 
 
 

681. The coralloid roots are :

 
 
 
 

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

 
 
 
 

683. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

685. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

688. Some biologists have used the term Mycetozoa for:

 
 
 
 

689. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

692. Red rot of sugarcane is caused by:

 
 
 
 

693. Plasmids are:

 
 
 
 

694. All algae have:

 
 
 
 

695. Most common type of conjugation in Spirogyra is :

 
 
 
 

696. Reproduction in Rhizopus is:

 
 
 
 

697. The disease apple scab is caused by:

 
 
 
 

698. Desired type of Cycas can be grown by:

 
 
 
 

699. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

701. 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?

 
 
 
 

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

 
 
 
 

703. The two conjugating gametangia of Rhizopus are:

 
 
 
 

704. Fern prothallus produces:

 
 
 
 

705. The alga, Spirogyra are found in :

 
 
 
 

706. The megaspore of Selaginella on germination produces:

 
 
 
 

707. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

710. Wine turns sour because of:

 
 
 
 

711. Majority of lichens are :

 
 
 
 

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

 
 
 
 

713. The sexual reproductive organs in Rhizopus are:

 
 
 
 

714. Lichens form the first community in

 
 
 
 

715. In Cycas the fertilization is:

 
 
 
 

716. Sporophyte of Funaria is :

 
 
 
 

717. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

719. In Pteris, the roots are:

 
 
 
 

720. Which of the following statement is correct?

 
 
 
 

721. Cycas plant in appearance resembles :

 
 
 
 

722. Penicillin is obtained from:

 
 
 
 

723. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

727. 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:

 
 
 
 

728. Which of the following shows heterotrichous habit?

 
 
 
 

729. Which is the nuclear material in bacteria?

 
 
 
 

730. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

732. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

734. In Gymnocarpeae the fruiting body is :

 
 
 
 

735. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

737. Common phycobiont in a lichen is :

 
 
 
 

738. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

740. Fruits are not found in Cycas because:

 
 
 
 

741. In a diplontic life cycle:

 
 
 
 

742. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

744. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

747. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

749. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

751. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

755. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

758. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

761. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. In Cycas:

 
 
 
 

765. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

767. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

774. Winged pollen grains are found in :

 
 
 
 

775. Clostridium can:

 
 
 
 

776. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

779. Lichen show :

 
 
 
 

780. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. The chief characteristic of bryophyta is that :

 
 
 
 

785. Which one of the following is a monocot?

 
 
 
 

786. Heterosporous pteridophytes always form:

 
 
 
 

787. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

791. Virion refers to:

 
 
 
 

792. The tree fern is:

 
 
 
 

793. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

796. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

798. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

800. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

809. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

810. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

813. In moss, stomata are found:

 
 
 
 

814. Mixed cropping helps :

 
 
 
 

815. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

817. The development of sporangium in Selaginella is:

 
 
 
 

818. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

820. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

823. Mostly type of zygospore in Ulothrix is:

 
 
 
 

824. Infective part of virus was discovered by:

 
 
 
 

825. In moss, sporophyte is formed on:

 
 
 
 

826. Pollination in Cycas takes place by :

 
 
 
 

827. Nannandria are:

 
 
 
 

828. Yeast belongs to class:

 
 
 
 

829. Which of the following is true for Selaginella?

 
 
 
 

830. The sporangium of fern contains nearly:

 
 
 
 

831. Fern prothallus is:

 
 
 
 

832. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

836. The fungi are usually:

 
 
 
 

837. In Selaginella, the microsporangia are:

 
 
 
 

838. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

840. Psilotum is:

 
 
 
 

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

 
 
 
 

842. Broad spectrum antibiotic is, which:

 
 
 
 

843. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

845. Which of the following have a prokaryotic cell?

 
 
 
 

846. The Rhizopus gametes are formed in:

 
 
 
 

847.

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

 
 
 
 

849. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

851. Rhizoids of Riccia are :

 
 
 
 

852. Rhizophore of Selaginella is:

 
 
 
 

853. Saccharomyces ludwigii ascus produces:

 
 
 
 

854. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

856. The tallest moss in the world is :

 
 
 
 

857. Which organisms are the oldest life forms?

 
 
 
 

858. The mode of nutrition of bacteria is usually:

 
 
 
 

859. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

862. Red rot of sugarcane is caused by :

 
 
 
 

863. First animal pathogenic virus was discovered by:

 
 
 
 

864. Transfusion tissue is present in the leaflet of: