Quiz_Random

1. Agar-agar is obtained from:

 
 
 
 

2. The orders generally have the uniform endings:

 
 
 
 

3. Which is a gametophytic tissue?

 
 
 
 

4. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

12. Fertility of the soil is increased by:

 
 
 
 

13. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

15. The lambda phase is a:

 
 
 
 

16. Fern phloem lacks:

 
 
 
 

17. Which of the following is true for viruses?

 
 
 
 

18. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

20. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

22. The two conjugating gametangia of Rhizopus are:

 
 
 
 

23. 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:

 
 
 
 

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

 
 
 
 

25. Plasmids are:

 
 
 
 

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

 
 
 
 

27. Psilotum is:

 
 
 
 

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

 
 
 
 

29. Methanogens belong to:

 
 
 
 

30. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

31. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

33. Vascular cryptogam is the term used for :

 
 
 
 

34. The smallest bacterium is:

 
 
 
 

35. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. Cycas is:

 
 
 
 

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

 
 
 
 

43. In Pteris, the roots are:

 
 
 
 

44. Common phycobiont in a lichen is :

 
 
 
 

45. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

47.

48. Heterospory is the production of:

 
 
 
 

49. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

51. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

53. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Diphtheria is caused by:

 
 
 
 

57. The similarity between cyanobacteria and bacteria:

 
 
 
 

58. Choose the correct statement about Spirogyra:

 
 
 
 

59. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

61. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

63. Total parasites belong to:

 
 
 
 

64. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

72. Cyanophage is a virus that attacks:

 
 
 
 

73. Proembryo in Pinus is :

 
 
 
 

74. Banana bunchy top is caused by :

 
 
 
 

75. 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?

 
 
 
 

76. The alga, Spirogyra are found in :

 
 
 
 

77. Standard size of a herbarium sheet is:

 
 
 
 

78. Fern plants are:

 
 
 
 

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

 
 
 
 

80. 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:

 
 
 
 

81. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

83. Which one of the following is a monocot?

 
 
 
 

84. Green plants are classified as :

 
 
 
 

85. Which is a redwood tree?

 
 
 
 

86. Mycoplasma are sensitive to:

 
 
 
 

87. Which of the following lichens is harmful?

 
 
 
 

88. Which organisms are the oldest life forms?

 
 
 
 

89. The leafy fern plant represents the:

 
 
 
 

90. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. In tracheophyta:

 
 
 
 

96. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

101. The Rhizopus is:

 
 
 
 

102. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

104. Metulae are found in:

 
 
 
 

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

 
 
 
 

106. Ovary is absent in :

 
 
 
 

107. Funaria are commonly found :

 
 
 
 

108. Virion refers to:

 
 
 
 

109. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

114. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. Reproduction in Rhizopus is:

 
 
 
 

120. Bryophyta have a special character from other plants:

 
 
 
 

121. Protozoans are considered animals because these are:

 
 
 
 

122. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

124. The disease symptom necrosis refers to :

 
 
 
 

125. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

126. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

129. Vascular tissue is found in :

 
 
 
 

130. The flagella of Chlamydomonas are:

 
 
 
 

131. E coli is a:

 
 
 
 

132. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

133. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. Viruses are considered to be:

 
 
 
 

142. 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:

 
 
 
 

143. 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?

 
 
 
 

144. In angiosperms double fertilization represents:

 
 
 
 

145. In moss, sporogenous tissue arises from:

 
 
 
 

146. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

148. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

150. Facultative saprophyte is:

 
 
 
 

151. Winged seeds are found in :

 
 
 
 

152. To which class Riccia belongs :

 
 
 
 

153. NBG of Lucknow is now named as:

 
 
 
 

154. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. Infective part of virus was discovered by:

 
 
 
 

158. Multicellular and jacketed sex organs are found in :

 
 
 
 

159. In Funaria, calyptra is derived from :

 
 
 
 

160. Which condition is found in Cycas?

 
 
 
 

161. The most primitive vascular plants is:

 
 
 
 

162. The spermatozoids of Cycas are :

 
 
 
 

163. Select the wrong statement:

 
 
 
 

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

 
 
 
 

165. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. The chloroplast in Ulothrix is :

 
 
 
 

169. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

171. Disease resistant plant varieties can be produced by :

 
 
 
 

172. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

174. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

177. Red rot of sugarcane is caused by :

 
 
 
 

178. The fungi are usually:

 
 
 
 

179. In Herpes virus DNA is:

 
 
 
 

180. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

183. Germ theory of disease was proposed by:

 
 
 
 

184. Asexual reproductive body of Volvox is called:

 
 
 
 

185. Ectocarpus produces:

 
 
 
 

186. Among the algae kelps are :

 
 
 
 

187. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

189. Which is a fungicide?

 
 
 
 

190. The order generally ends with:

 
 
 
 

191. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

193. The mycelium of Rhizopus is:

 
 
 
 

194. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

196. Which is absent from the xylem of Cycas?

 
 
 
 

197. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. 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?

 
 
 
 

201. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

203. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

207. Antibiotic has been extracted from :

 
 
 
 

208. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

209. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

212. Isomorphic type alternation of generation is found in:

 
 
 
 

213. The young leaves of Cycas have :

 
 
 
 

214. The group algae possesses representatives belonging to kingdom:

 
 
 
 

215. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

217. Which among the following is a shrub?

 
 
 
 

218. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

220. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Pinus microsporophyll bears:

 
 
 
 

224. Roots are absent in :

 
 
 
 

225. Pinus is:

 
 
 
 

226. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

228. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

230. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

232. Diploxylic vascular bundles are found in:

 
 
 
 

233. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

235. The sori in Dryopteris are found on:

 
 
 
 

236. Fairy ring is the name given to:

 
 
 
 

237. Nitrifying bacteria play an important role by converting:

 
 
 
 

238. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

240. Spermatophyta are characterized by producing:

 
 
 
 

241.

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

 
 
 
 

243. Saccharomyces is used in:

 
 
 
 

244. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. Which is the correct statement about Selaginella?

 
 
 
 

249. Pneumonia is caused by:

 
 
 
 

250. Cell walls of Gram-positive bacteria contain:

 
 
 
 

251. The phloem of vascular system of Cycas is :

 
 
 
 

252. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. The chloroplast of Chlamydomonas are:

 
 
 
 

256.

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

 
 
 
 

258. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

260. Ginkgo biloba is a:

 
 
 
 

261. Each chloroplast in Spirogyra bears :

 
 
 
 

262. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

265. In moss, conducting tissue is made up of

 
 
 
 

266. Cocci types of bacteria are:

 
 
 
 

267. Ovary is absent in:

 
 
 
 

268. What is a vector?

 
 
 
 

269. Which of the following does not contain chlorophyll?

 
 
 
 

270. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

272. Circular DNA is seen in:

 
 
 
 

273. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

275. In Gymnosperms endosperm is a:

 
 
 
 

276. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

278. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

280. Rhizophore of Selaginella is:

 
 
 
 

281. Cleavage polyembryony is found in :

 
 
 
 

282. Anoxygenic photosynthesis occurs in:

 
 
 
 

283. All algae have:

 
 
 
 

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

 
 
 
 

285. Funaria can be differentiated from Cycas :

 
 
 
 

286. Green plants are classified as:

 
 
 
 

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

 
 
 
 

288. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

292. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

294. Male gametes in Dryopteris are:

 
 
 
 

295. The archegonia in Selaginella develop on:

 
 
 
 

296. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

298. Which of the following is a parasitic algae?

 
 
 
 

299. Vascular cryptogams is the term used for:

 
 
 
 

300. Citrus canker is caused by:

 
 
 
 

301. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

305. Nannandria are:

 
 
 
 

306. Ovules are not found enclosed in ovary in :

 
 
 
 

307. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

311. Who named prion?

 
 
 
 

312. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

316. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

318. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

321. Water bloom is generally caused by :

 
 
 
 

322. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. Economic importance of bacteria lies in their being:

 
 
 
 

327. The vascular bundles of Cycas stem are :

 
 
 
 

328. Kuru, a human disease is caused by:

 
 
 
 

329. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

333. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

338. Majority of lichens are :

 
 
 
 

339. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

344. Which of the following is sago palm?

 
 
 
 

345. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. Special feature of pollen grains of Pinus is :

 
 
 
 

349. Which of the following applies to Selaginella?

 
 
 
 

350. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

359. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

361. John Hutchinson divided dicots into two divisions:

 
 
 
 

362. The tree fern is:

 
 
 
 

363. Botulism is a:

 
 
 
 

364. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

366. What is streptomycin?

 
 
 
 

367. Late blight of potato is caused by:

 
 
 
 

368. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

370. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

372. Discovery of penicillin was based on:

 
 
 
 

373. Selaginella differs from Moss in having:

 
 
 
 

374. Bacteria are considered to be plants because they:

 
 
 
 

375. Bacteriophage consists of:

 
 
 
 

376. Lichen show :

 
 
 
 

377. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

378. Rhizopus and yeast are usually:

 
 
 
 

379. Streptomycin is obtained from:

 
 
 
 

380. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

383. Black rust of wheat is caused by:

 
 
 
 

384. Sexual reproduction of lichen is due to :

 
 
 
 

385. Zoogametes are not found in:

 
 
 
 

386. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

390. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

397. The DNA of E coli is:

 
 
 
 

398. What are Cyanobacteria?

 
 
 
 

399. The sporangium of fern contains nearly:

 
 
 
 

400. Mycoplasma was discovered by:

 
 
 
 

401. The spur of Pinus roxburghii has :

 
 
 
 

402. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

404. The truncated cone of HIV consists of:

 
 
 
 

405. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

407. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. The gametophyte of fern bears:

 
 
 
 

414. Virus and bacteriophage are made-up of:

 
 
 
 

415. The zygospore in Rhizopus on germination forms:

 
 
 
 

416. All protozoans possess:

 
 
 
 

417. Who discovered cyanophages?

 
 
 
 

418. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

420. The coralloid roots are :

 
 
 
 

421. Chemosynthetic bacteria are:

 
 
 
 

422. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

424. Meiosis in Ulothrix takes place:

 
 
 
 

425. . Tapetum develops in:

 
 
 
 

426. Gymnosperms could also be called as:

 
 
 
 

427. Pinus gerardiana is :

 
 
 
 

428. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

433. The gametophyte of moss has distinct phases :

 
 
 
 

434. Viroids have:

 
 
 
 

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

 
 
 
 

436. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

439. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

441. Sexual reproduction in Rhizopus is by:

 
 
 
 

442. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

444. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

445. Which one of the following statement is wrong?

 
 
 
 

446. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

448. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

450. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

452. Lichens are the indicator of pollution :

 
 
 
 

453. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

457. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

459. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. Bryophyta have been placed in cryptogams because:

 
 
 
 

463. In moss, reduction division occurs in :

 
 
 
 

464. What is absent in Deuteromycetes?

 
 
 
 

465. The archegonia of Selaginella are differentiated by:

 
 
 
 

466. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

468. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

470. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

473. Which causes red tide?

 
 
 
 

474. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

477. The chief characteristic of class Ascomycetes is:

 
 
 
 

478. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

481. Gram stain is used to:

 
 
 
 

482. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

484. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

487. Bivalved siliceous shell or frustule occur in:

 
 
 
 

488. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

490. Indusium in Dryopteris is:

 
 
 
 

491. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

493. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

495. In Cycas:

 
 
 
 

496. What are plasmids?

 
 
 
 

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

 
 
 
 

498. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

500. Heterospory and ligulate leaves are a feature of:

 
 
 
 

501. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

503. Mycoplasma are:

 
 
 
 

504. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

506. The sporophyte of Riccia is represented by :

 
 
 
 

507. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

513. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

515. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. Yeast belongs to class:

 
 
 
 

519. Genetic material of TMV is:

 
 
 
 

520. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

525. Lichens form the first community in

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. Wine turns sour because of:

 
 
 
 

529. 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:

 
 
 
 

530. Nitrogen-fixing bacteria may be located:

 
 
 
 

531. In a diplontic life cycle:

 
 
 
 

532. Seeds are characteristically found in :

 
 
 
 

533. Pythium debaryanum is the causative agent of:

 
 
 
 

534. Pollination drop is:

 
 
 
 

535. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

536. The microsporophylls on the cone of Cycas are :

 
 
 
 

537. In Pteris, the archegonia are present:

 
 
 
 

538. Lichens are pioneers of vegetation in a :

 
 
 
 

539. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. In Funaria :

 
 
 
 

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

 
 
 
 

544. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

546. Water-net is the name of:

 
 
 
 

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

 
 
 
 

548. 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:

 
 
 
 

549. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

550. Azolla growing in paddy fields helps in:

 
 
 
 

551. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

553. Placenta in fern is:

 
 
 
 

554. Which group of algae have an incipient nucleus?

 
 
 
 

555. Usually, bacteria reproduce by:

 
 
 
 

556. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

559. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

561. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. Redness of red sea is due to :

 
 
 
 

568. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

570. Cyathia is characterized by:

 
 
 
 

571. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

575. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

577. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

579. Amoeba is a member of the phylum:

 
 
 
 

580. Most primitive embryophytes are placed in :

 
 
 
 

581. Which is a tautonym?

 
 
 
 

582. Embryophyta includes :

 
 
 
 

583. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

585. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

587. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

589. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

592. How is moss different from fern?

 
 
 
 

593. Bacteria growing on synthetic medium are called:

 
 
 
 

594. In Cycas the fertilization is:

 
 
 
 

595.

 

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

 
 
 
 

597. Bacteria were first discovered by:

 
 
 
 

598. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

603. The megaspore of Selaginella on germination produces:

 
 
 
 

604. Parmelia belongs to :

 
 
 
 

605. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

607. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

613. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

615. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

617. The fungi used as food are:

 
 
 
 

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

 
 
 
 

619. Cycas is :

 
 
 
 

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

 
 
 
 

621. Which is an exception to cell theory?

 
 
 
 

622. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

624. The fungi that grow on wood are called:

 
 
 
 

625. The male gametes of Pinus are :

 
 
 
 

626. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

629. Winged pollen grains are found in :

 
 
 
 

630. Synzoospore is produced in:

 
 
 
 

631. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

637. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

639. LSD is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

642. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

646. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

649. Sporophyte of Funaria is :

 
 
 
 

650. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

652. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

654. Fruiting body of lichens is :

 
 
 
 

655. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. Cryptogams include :

 
 
 
 

659. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

661. The prothallus of fern represents the plant:

 
 
 
 

662. The roots of Cycas are :

 
 
 
 

663. Germination of the seed of Pinus is :

 
 
 
 

664. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

667. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

669. Fruits are not found in :

 
 
 
 

670. Rhizopus belongs to:

 
 
 
 

671. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

673. Cap cells are found in the filament of:

 
 
 
 

674. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

676. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

679. Fruits are not found in:

 
 
 
 

680. What is special feature of fern archegonia?

 
 
 
 

681. The fern plant is:

 
 
 
 

682. Which is the nuclear material in bacteria?

 
 
 
 

683. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

687. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

689. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

692. The nucleus of bacteria is:

 
 
 
 

693. Oswald Tippo’s classification is:

 
 
 
 

694. Heterotrichous habit means :

 
 
 
 

695. Chemosynthetic bacteria are:

 
 
 
 

696. Yeast is a source of:

 
 
 
 

697. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

699. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

701. 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:

 
 
 
 

702. Triple antigen injection or vaccine are for:

 
 
 
 

703. Most of the lichens are composed of :

 
 
 
 

704. The disease apple scab is caused by:

 
 
 
 

705. Enzymes are absent in:

 
 
 
 

706. The chief characteristic of bryophyta is that :

 
 
 
 

707. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

709. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

712. Soil fertility is lost by the activities of:

 
 
 
 

713. Embryophyta includes:

 
 
 
 

714. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

716. The plants of Funaria grow :

 
 
 
 

717. Leaf spot of groundnut is caused by :

 
 
 
 

718. Fern prothallus is:

 
 
 
 

719. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

720. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

722. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

724. Most appropriate word for protozoans is:

 
 
 
 

725. Facultative parasite is:

 
 
 
 

726. The largest alga is:

 
 
 
 

727. Gametophyte is the main plant body in :

 
 
 
 

728. Funaria is :

 
 
 
 

729. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

731. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

733. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

735. Ergot of rye is caused by:

 
 
 
 

736. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

738. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

741. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

743. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

745. 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:

 
 
 
 

746. The leaves of Funaria are :

 
 
 
 

747. Smallpox is caused by:

 
 
 
 

748. The central part of Funaria axis is :

 
 
 
 

749. The ascus of yeast contains:

 
 
 
 

750. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

753. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

755. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

757. The gametophyte of fern is as:

 
 
 
 

758. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

760. Polystelic condition is found in:

 
 
 
 

761. Which fixes atmospheric nitrogen?

 
 
 
 

762. The leaf of Cycas shows:

 
 
 
 

763. Which bacteria convert nitrate into nitrogen?

 
 
 
 

764. Bacteriophages have been used as:

 
 
 
 

765. Little leaf disease of Brinjal is caused by:

 
 
 
 

766. Broad spectrum antibiotic is, which:

 
 
 
 

767. Water-borne bacterial diseases are:

 
 
 
 

768. Where does meiosis occur in yeast?

 
 
 
 

769. Streptomyces falls under:

 
 
 
 

770. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

773. Number of capsomeres forming capsid of TMV is:

 
 
 
 

774. Ergot is obtained from :

 
 
 
 

775. Interferon is a:

 
 
 
 

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

 
 
 
 

777. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

779. Viruses have:

 
 
 
 

780. Red rot of sugarcane is caused by :

 
 
 
 

781. Pasteurization of milk involves heating for:

 
 
 
 

782. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

787. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

790. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

792. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

793. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

795. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

797. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

800. Bentham and Hooker placed gymnosperms:

 
 
 
 

801. Ovules are not found enclosed in ovary of:

 
 
 
 

802. Absorptive nutrition is:

 
 
 
 

803. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

805. To which country Antony van Leeuwenhoek belong?

 
 
 
 

806. Centric discoid form of diatom is:

 
 
 
 

807. The largest known bacterium is:

 
 
 
 

808. Pasteur is famous for his:

 
 
 
 

809. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

811. In Gymnocarpeae the fruiting body is :

 
 
 
 

812. Which of the following statements is not correct?

 
 
 
 

813. Heterosporous pteridophytes always form:

 
 
 
 

814. Bacteria which are spherical are called:

 
 
 
 

815. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

817. Which is not found in bacteria?

 
 
 
 

818. The chromosomal number in:

 
 
 
 

819. Milk is converted to curd by:

 
 
 
 

820. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

822. Select the correct statement: (NEET 2016)

 
 
 
 

823. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

824. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

826. The Rhizopus gametes are formed in:

 
 
 
 

827. The fungi are mostly:

 
 
 
 

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

 
 
 
 

829. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

831. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

833. 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?

 
 
 
 

834. The smallest unit of classification is:

 
 
 
 

835. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

838. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

841. Who discovered heterothallism in fungi?

 
 
 
 

842. Liverworts are included in :

 
 
 
 

843. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

845. Rice, pea, potato are :

 
 
 
 

846. The term stele was given by:

 
 
 
 

847. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

851. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

853. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

855. The genetic material of poxvirus is:

 
 
 
 

856. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

861. Which is an edible fungus?

 
 
 
 

862. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

864. Clostridium can: