Quiz_Random

1. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

3. Economic importance of bacteria lies in their being:

 
 
 
 

4. Amoeba is a member of the phylum:

 
 
 
 

5. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

7. Sometimes the bacterial cell is enclosed in:

 
 
 
 

8. The source of litmus is :

 
 
 
 

9. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

13. Late blight of potato is caused by:

 
 
 
 

14. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

16. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

18. Rice, pea, potato are :

 
 
 
 

19. Mycoplasma is different from bacteria due to:

 
 
 
 

20. 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?

 
 
 
 

21. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Pteridophyta are also called:

 
 
 
 

28. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. Iodine is obtained from:

 
 
 
 

33. What are Cyanobacteria?

 
 
 
 

34. Generic name of mango is:

 
 
 
 

35. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

37. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

39. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. Botulism is a:

 
 
 
 

44. The teeth of peristome of Funaria are :

 
 
 
 

45. The disease symptom necrosis refers to :

 
 
 
 

46. Viroids have:

 
 
 
 

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

 
 
 
 

48. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

50. To which class Riccia belongs :

 
 
 
 

51. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

53. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

55. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Cyanophage is a virus that attacks:

 
 
 
 

59. Fruits are not found in:

 
 
 
 

60. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

62. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

64. Lichens are pioneers of vegetation in a :

 
 
 
 

65. 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:

 
 
 
 

66. Lichens show :

 
 
 
 

67. Ergot of rye is caused by:

 
 
 
 

68. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

77. Nitrifying bacteria play an important role by converting:

 
 
 
 

78. All archaebacteria lack:

 
 
 
 

79. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

84. The mode of nutrition of bacteria is usually:

 
 
 
 

85. Which is absent from the xylem of Cycas?

 
 
 
 

86. Which is an exception to cell theory?

 
 
 
 

87. Pollination in Pinus is :

 
 
 
 

88. The chief characteristic of class Ascomycetes is:

 
 
 
 

89. Pinus is:

 
 
 
 

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

 
 
 
 

91. Infective part of virus was discovered by:

 
 
 
 

92. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

94. Lichens reproduce by :

 
 
 
 

95. The roots of Cycas are :

 
 
 
 

96. 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:

 
 
 
 

97. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

99. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

101. The lambda phase is a:

 
 
 
 

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

 
 
 
 

103. Which part of Riccia bears nurse cells?

 
 
 
 

104. The antibiotic is obtained from:

 
 
 
 

105. Male gametes in Dryopteris are:

 
 
 
 

106. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

108.

109. In moss, conducting tissue is made up of

 
 
 
 

110. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

113. White rust of crucifers is caused by:

 
 
 
 

114. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

116. Heterosporous pteridophytes always form:

 
 
 
 

117. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

120. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

125. Cryptogams include :

 
 
 
 

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

 
 
 
 

127. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

130. Male gametophyte of Selaginella is found:

 
 
 
 

131. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

133. Vegetative reproduction in Cycas is by means of :

 
 
 
 

134. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

136. Photosynthetic protists belong to:

 
 
 
 

137. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

142. Heterospory is the production of:

 
 
 
 

143. Heterotrichous habit means :

 
 
 
 

144. Most appropriate word for protozoans is:

 
 
 
 

145. Pinus microsporophyll bears:

 
 
 
 

146. Who discovered heterothallism in fungi?

 
 
 
 

147. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

149. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

150. Most of the algae are :

 
 
 
 

151. In moss, calyptra is formed from:

 
 
 
 

152. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

154. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

156. What is a vector?

 
 
 
 

157. Which is not found in bacteria?

 
 
 
 

158. Which of the following statements is not correct?

 
 
 
 

159. Red rot of sugarcane is caused by :

 
 
 
 

160. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

163. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

165. The tallest moss in the world is :

 
 
 
 

166. Which is the nuclear material in bacteria?

 
 
 
 

167. Milk is converted to curd by:

 
 
 
 

168. The group algae possesses representatives belonging to kingdom:

 
 
 
 

169. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

172. Heterocysts are found in :

 
 
 
 

173. Select the wrong statement:

 
 
 
 

174. Pythium debaryanum is the causative agent of:

 
 
 
 

175. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

176. In moss, peristomial teeth are:

 
 
 
 

177. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

179. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

182. In Cycas which structure is equivalent to stamen?

 
 
 
 

183. The most primitive vascular plants is:

 
 
 
 

184. Reserve food in Euglena is:

 
 
 
 

185. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Nannandria are:

 
 
 
 

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

 
 
 
 

191. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

193. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

195. The smallest bacterium is:

 
 
 
 

196. Azolla growing in paddy fields helps in:

 
 
 
 

197. One of the distinctive feature of Spirogyra is :

 
 
 
 

198. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

201. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

203. The order generally ends with:

 
 
 
 

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

 
 
 
 

205. Acetobacter is useful in:

 
 
 
 

206. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

208. Club moss is the common name of :

 
 
 
 

209. The upper region of moss capsule is :

 
 
 
 

210. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

212. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

214. In moss, sporogenous tissue arises from:

 
 
 
 

215. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

219. Rhizopus belongs to:

 
 
 
 

220. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

222. Choose the correct statement about Spirogyra:

 
 
 
 

223. Mucilaginous canals in Cycas are found in :

 
 
 
 

224. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

226. Bentham and Hooker placed gymnosperms:

 
 
 
 

227. Water-borne bacterial diseases are:

 
 
 
 

228. The sori in Dryopteris are found on:

 
 
 
 

229. Bacteria are considered to be plants because they:

 
 
 
 

230. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

234. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

236. 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?

 
 
 
 

237. Downy mildew disease is caused by :

 
 
 
 

238. In Funaria, calyptra is derived from :

 
 
 
 

239. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

241. Ovules are not found enclosed in ovary of:

 
 
 
 

242. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

244. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

246. Bacteria are found everywhere, except:

 
 
 
 

247. Yeast belongs to class:

 
 
 
 

248. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

250. Most primitive group of vascular plants are:

 
 
 
 

251. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

253. LSD is:

 
 
 
 

254. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

256. Ovules are not found enclosed in ovary in :

 
 
 
 

257. Majority of lichens are :

 
 
 
 

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

 
 
 
 

259. Most primitive embryophytes are placed in :

 
 
 
 

260. The ferns are usually found:

 
 
 
 

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

 
 
 
 

262. Black rust of wheat is caused by:

 
 
 
 

263. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

269. Selaginella differs from Moss in having:

 
 
 
 

270. Pasteur is famous for his:

 
 
 
 

271. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

273. Which is an edible fungus?

 
 
 
 

274. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

277. 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:

 
 
 
 

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

 
 
 
 

279. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

281. Which of the following is true for viruses?

 
 
 
 

282. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

284. Detailed study of bacteriophage was made by:

 
 
 
 

285. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

287. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

288. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

290.

291. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

295. Antibiotics cure the disease by:

 
 
 
 

296. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

298. Heterospory and ligulate leaves are a feature of:

 
 
 
 

299. Water bloom is generally caused by :

 
 
 
 

300. Funaria is :

 
 
 
 

301. Which of the following is a parasitic algae?

 
 
 
 

302. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

306. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

308. What is streptomycin?

 
 
 
 

309. Mycoplasma contains:

 
 
 
 

310. In Cycas:

 
 
 
 

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

 
 
 
 

312. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

314. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

317. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

320. Disease resistant plant varieties can be produced by :

 
 
 
 

321. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

323. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

325. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. Polystelic condition is found in:

 
 
 
 

330. Reproduction in Cycas takes place by :

 
 
 
 

331. Quarantine regulations are concerned with:

 
 
 
 

332. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. Little leaf disease of Brinjal is caused by:

 
 
 
 

337. The sporophyte of Riccia is represented by :

 
 
 
 

338. Rhizophore of Selaginella is:

 
 
 
 

339. Aflatoxin is produced as a product in :

 
 
 
 

340. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

347. Black rust of wheat is caused by:

 
 
 
 

348. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

349. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

350. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

352. Triple antigen injection or vaccine are for:

 
 
 
 

353. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

355. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

357. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

360. Which of the following are absent in Mycoplasma?

 
 
 
 

361. The zoospores of Ulothrix are :

 
 
 
 

362. Which organisms are the oldest life forms?

 
 
 
 

363. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

365. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

369. Cleavage polyembryony is found in :

 
 
 
 

370. The sexual reproductive organs in Rhizopus are:

 
 
 
 

371. Endemic plants are characterised by their:

 
 
 
 

372. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

374. Which of the following is a heterosporous pteridophyte?

 
 
 
 

375. The flagella of Chlamydomonas are:

 
 
 
 

376. The smallest unit of classification is:

 
 
 
 

377. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

379. All protozoans possess:

 
 
 
 

380. Spermatophyta are characterized by producing:

 
 
 
 

381. Methanogens belong to:

 
 
 
 

382. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

384. The two conjugating gametangia of Rhizopus are:

 
 
 
 

385. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

386. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

389. Sexual reproduction in Rhizopus is by:

 
 
 
 

390. Isomorphic type alternation of generation is found in:

 
 
 
 

391. Helotism word is used for the symbiosis between :

 
 
 
 

392. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

394. Indusium in Dryopteris is:

 
 
 
 

395. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

397. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

400. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

402. Vascular cryptogams is the term used for:

 
 
 
 

403. Metulae are found in:

 
 
 
 

404. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

406. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

408. The plants of Funaria grow :

 
 
 
 

409. Total parasites belong to:

 
 
 
 

410. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. 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:

 
 
 
 

414. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

416. The development of sporangium in Selaginella is:

 
 
 
 

417. Which of the following have algal zone?

 
 
 
 

418. Ulothrix produces :

 
 
 
 

419. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

421. Pinus gerardiana is :

 
 
 
 

422. Pollination drop is:

 
 
 
 

423. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

425. The fungi that grow on wood are called:

 
 
 
 

426. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

428. Mostly type of zygospore in Ulothrix is:

 
 
 
 

429. Green plants are classified as:

 
 
 
 

430. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

431. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

433. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. Spirogyra differs from moss protonema in having :

 
 
 
 

438. Antibiotic has been extracted from :

 
 
 
 

439. The coralloid roots are :

 
 
 
 

440. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

444. Sporophyte of Funaria is :

 
 
 
 

445. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

447. The central part of Funaria axis is :

 
 
 
 

448. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. Which group of algae have an incipient nucleus?

 
 
 
 

452. Red rot of sugarcane is caused by :

 
 
 
 

453. Banana bunchy top is caused by :

 
 
 
 

454. The fungi are mostly:

 
 
 
 

455. A gill of Agaricus:

 
 
 
 

456. Smallpox is caused by:

 
 
 
 

457. Saccharomyces is used in:

 
 
 
 

458. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

460. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

463. In Gymnocarpeae the fruiting body is :

 
 
 
 

464. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

466. Mycoplasma are:

 
 
 
 

467. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

470. The alga, Spirogyra are found in :

 
 
 
 

471. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. In angiosperms double fertilization represents:

 
 
 
 

475. Cycas revoluta is widely grown as :

 
 
 
 

476. Longest known virus is:

 
 
 
 

477. Select the correct statement: (NEET 2016)

 
 
 
 

478. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

479. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

481. Funaria are commonly found :

 
 
 
 

482. Vascular tissue is found in :

 
 
 
 

483. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

486. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

489. Cycas is:

 
 
 
 

490. Funaria can be differentiated from Cycas :

 
 
 
 

491. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

495. In moss, sporophyte is formed on:

 
 
 
 

496. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

498. In Pteris, the archegonia are present:

 
 
 
 

499. Pollination in Cycas takes place by :

 
 
 
 

500. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

504. 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:

 
 
 
 

505. The antherozoids of Funaria are :

 
 
 
 

506. Which among the following is a shrub?

 
 
 
 

507. Interferon is a:

 
 
 
 

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

 
 
 
 

509. Nitrogen-fixing bacteria may be located:

 
 
 
 

510. Meristele of fern is:

 
 
 
 

511. Facultative parasite is:

 
 
 
 

512. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. Who named prion?

 
 
 
 

516. Chief constituents of bordeaux mixture are :

 
 
 
 

517. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

520. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

523. In Selaginella, the microsporangia are:

 
 
 
 

524. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

526. Embryophyta includes :

 
 
 
 

527. Citrus canker is caused by :

 
 
 
 

528. Fertility of the soil is increased by:

 
 
 
 

529. The most important property of yeast is:

 
 
 
 

530. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

533. Ovary is absent in:

 
 
 
 

534. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

536. Cycas plant in appearance resembles :

 
 
 
 

537. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

540. Mycoplasma are sensitive to:

 
 
 
 

541. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

543. Siphonogamy is found in:

 
 
 
 

544. Sexual reproduction of lichen is due to :

 
 
 
 

545. Bivalved siliceous shell or frustule occur in:

 
 
 
 

546. Who discovered streptomycin?

 
 
 
 

547. Fruits are not found in Cycas because:

 
 
 
 

548. Most primitive kind of flower is represented by:

 
 
 
 

549. Broad spectrum antibiotic is, which:

 
 
 
 

550. Soil fertility is lost by the activities of:

 
 
 
 

551. Enteric bacteria are those bacteria that live:

 
 
 
 

552. Clostridium can:

 
 
 
 

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

 
 
 
 

554. The disease apple scab is caused by:

 
 
 
 

555. Halophiles are the bacteria that require for growth:

 
 
 
 

556. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

559. The archegonia of Selaginella are differentiated by:

 
 
 
 

560. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

562. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

564. First animal pathogenic virus was discovered by:

 
 
 
 

565. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. The vascular bundles of Cycas stem are :

 
 
 
 

573. Fern plants are:

 
 
 
 

574. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

583. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

585. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

588. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

590. Liverworts are included in :

 
 
 
 

591. Desired type of Cycas can be grown by:

 
 
 
 

592. Bacteria were first discovered by:

 
 
 
 

593. Black rust of wheat is caused by:

 
 
 
 

594. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

600. Yeast is a source of:

 
 
 
 

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

 
 
 
 

602. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

604. What is the role of nitrifying bacteria?

 
 
 
 

605. Funaria is :

 
 
 
 

606. Typhoid in man is caused by:

 
 
 
 

607. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

609.

 

610. The chloroplast in Ulothrix is :

 
 
 
 

611. NBG of Lucknow is now named as:

 
 
 
 

612. Linnaeus is credited with introducing:

 
 
 
 

613. Oswald Tippo’s classification was based on :

 
 
 
 

614. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

616. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

620. The spermatozoids of Cycas are :

 
 
 
 

621. Pteridophytes are also known as :

 
 
 
 

622. Fruits are not found in :

 
 
 
 

623. The orders generally have the uniform endings:

 
 
 
 

624. Yeast grows more rapidly in:

 
 
 
 

625. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

627. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

632. Transfusion tissue is present in the leaflet of:

 
 
 
 

633. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

637. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. Protozoans are considered animals because these are:

 
 
 
 

645. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

647. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

650. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

652. Seeds are characteristically found in :

 
 
 
 

653. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

656. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

659. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

661. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

664. Circular DNA is seen in:

 
 
 
 

665. The sporangium of fern contains nearly:

 
 
 
 

666. The leafy fern plant represents the:

 
 
 
 

667. Which is a tautonym?

 
 
 
 

668. Which of the following does not contain chlorophyll?

 
 
 
 

669. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

671. Early blight of potato is caused by:

 
 
 
 

672. Which class of Protozoa includes all parasitic forms?

 
 
 
 

673. The fern plant is:

 
 
 
 

674. The chief characteristic of bryophyta is that :

 
 
 
 

675. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

682. The phloem of vascular system of Cycas is :

 
 
 
 

683. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. Ovules are not found enclosed in ovary in :

 
 
 
 

687. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

690. Cycas is different from mango in :

 
 
 
 

691. How is moss different from fern?

 
 
 
 

692. Embryophyta includes:

 
 
 
 

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

 
 
 
 

694. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

697. The nucleus of bacteria is:

 
 
 
 

698. Gram stain is used to:

 
 
 
 

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

 
 
 
 

700. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

701. Enzymes are absent in:

 
 
 
 

702. Embryo formation is not known in :

 
 
 
 

703. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

706. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

709. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

712. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

713. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

715. The largest known bacterium is:

 
 
 
 

716. Ginkgo biloba is a:

 
 
 
 

717. The leaves of Funaria are :

 
 
 
 

718. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

720. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

722. Germ theory of disease was proposed by:

 
 
 
 

723. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

725. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

727. What is absent in Deuteromycetes?

 
 
 
 

728. The DNA of E coli is:

 
 
 
 

729. Etiology includes the study of :

 
 
 
 

730. Streptomyces falls under:

 
 
 
 

731. The fungi are usually:

 
 
 
 

732. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

734. The chromosomal number in:

 
 
 
 

735. Ethylene oxide is widely used to:

 
 
 
 

736. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

739. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

740. Pasteurization of milk involves heating for:

 
 
 
 

741. The tree fern is:

 
 
 
 

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

 
 
 
 

743. 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:

 
 
 
 

744. Seeds are characteristically found in:

 
 
 
 

745. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

748. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

750. Funaria is a Bryophyta because :

 
 
 
 

751. The leaf of Cycas shows:

 
 
 
 

752.

753. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

755. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

757. Penicillin was discovered by:

 
 
 
 

758. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

761. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. Which of the following statement is correct?

 
 
 
 

765. Virion refers to:

 
 
 
 

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

 
 
 
 

767. Gametophyte is the main plant body in :

 
 
 
 

768. Saccharomyces is well known for:

 
 
 
 

769. Kuru, a human disease is caused by:

 
 
 
 

770. How a fern differs from a moss?

 
 
 
 

771. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

776. Protists which are diploid reproduce sexually by:

 
 
 
 

777. Climbers are found in genus:

 
 
 
 

778. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

780. Bryophyta have a special character from other plants:

 
 
 
 

781. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

783. Special feature of pollen grains of Pinus is :

 
 
 
 

784. Ergot is obtained from :

 
 
 
 

785. The truncated cone of HIV consists of:

 
 
 
 

786. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

791. The sporangiophores in Rhizopus are:

 
 
 
 

792. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

794. Viruses have:

 
 
 
 

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

 
 
 
 

796. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

798. What is special feature of fern archegonia?

 
 
 
 

799. The fungi used as food are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

802. Ovary is absent in :

 
 
 
 

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

 
 
 
 

804. Which condition is found in Cycas?

 
 
 
 

805. Red rot of sugarcane is caused by:

 
 
 
 

806. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

810. In a bacteriophage, DNA is present in:

 
 
 
 

811. Which one of the following is a monocot?

 
 
 
 

812. Lichen show :

 
 
 
 

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

 
 
 
 

814. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

818. Pythium debaryanum is the causative agent of:

 
 
 
 

819. Citrus canker is caused by:

 
 
 
 

820. In Cycas the fertilization is:

 
 
 
 

821. Which of the following is true for Selaginella?

 
 
 
 

822. Lichens form the first community in

 
 
 
 

823. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

826. Fruiting body of lichens is :

 
 
 
 

827. E coli is a:

 
 
 
 

828. Which of the following applies to Selaginella?

 
 
 
 

829. Some bacteria cannot be killed easily because of:

 
 
 
 

830. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

832. 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?

 
 
 
 

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

 
 
 
 

834. Bacteriophages have been used as:

 
 
 
 

835. In Funaria :

 
 
 
 

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

 
 
 
 

837. Fern prothallus produces:

 
 
 
 

838. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

844. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

849. Rhizoids of Riccia are :

 
 
 
 

850. The stele of Dryopteris is a:

 
 
 
 

851. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

853. Roots are absent in :

 
 
 
 

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

 
 
 
 

855. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

858. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

860. Which of the following have a prokaryotic cell?

 
 
 
 

861. Placenta in fern is:

 
 
 
 

862. The male gametes of Pinus are :

 
 
 
 

863. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

864. Rhizopus and yeast are usually: