Quiz_Random

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

 
 
 
 

2. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. The orders generally have the uniform endings:

 
 
 
 

6. Red rot of sugarcane is caused by :

 
 
 
 

7. The fern plant is:

 
 
 
 

8. Where does meiosis occur in yeast?

 
 
 
 

9. Ovules are not found enclosed in ovary in :

 
 
 
 

10. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. An Hfr bacterium is one that contains:

 
 
 
 

15. Redness of red sea is due to :

 
 
 
 

16. Mostly type of zygospore in Ulothrix is:

 
 
 
 

17. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

19. The lichens growing on rocks are called :

 
 
 
 

20. All algae have:

 
 
 
 

21. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

23. Rhizopus belongs to:

 
 
 
 

24. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

26. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Which causes red tide?

 
 
 
 

30. Fruits are not found in Cycas because:

 
 
 
 

31. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

33. Chemosynthetic bacteria are:

 
 
 
 

34. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. Club moss is the common name of :

 
 
 
 

38. Lichens show :

 
 
 
 

39. Sporophyte of fern is:

 
 
 
 

40. The seedless plants which possess vascular tissues are:

 
 
 
 

41. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

46. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Select the wrong statement:

 
 
 
 

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

 
 
 
 

51. Bacteriophages have been used as:

 
 
 
 

52. Cycas is different from mango in :

 
 
 
 

53. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

55. Most of the algae are :

 
 
 
 

56. Embryophyta includes:

 
 
 
 

57. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

59. The microsporophylls on the cone of Cycas are :

 
 
 
 

60. Citrus canker is caused by:

 
 
 
 

61. Linnaeus is credited with introducing:

 
 
 
 

62. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

64. Which group of algae have an incipient nucleus?

 
 
 
 

65. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

67. The spur of Pinus roxburghii has :

 
 
 
 

68. The disease apple scab is caused by:

 
 
 
 

69. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

71. The role of meiosis is for:

 
 
 
 

72. Saccharomyces ludwigii ascus produces:

 
 
 
 

73. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

75. The tree fern is:

 
 
 
 

76. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

78. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

80. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

82. A gill of Agaricus:

 
 
 
 

83. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86.

87. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

88. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Mycoplasma are:

 
 
 
 

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

 
 
 
 

93. Male gametophyte of Selaginella is found:

 
 
 
 

94. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

96. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. Bacteria were first discovered by:

 
 
 
 

100. Rhizopus and yeast are usually:

 
 
 
 

101. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

103. Ulothrix produces :

 
 
 
 

104. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. Most appropriate word for protozoans is:

 
 
 
 

108. Reserve food in Euglena is:

 
 
 
 

109. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

110. In Cycas the fertilization is:

 
 
 
 

111. Virion refers to:

 
 
 
 

112. Nannandria are:

 
 
 
 

113. 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:

 
 
 
 

114. Chief constituents of bordeaux mixture are :

 
 
 
 

115. Zoogametes are not found in:

 
 
 
 

116. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. Funaria are commonly found :

 
 
 
 

120. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

122. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

125. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

127.

128. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

130. Small epidermal swellings due to infection are called :

 
 
 
 

131. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

134. What are plasmids?

 
 
 
 

135. 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?

 
 
 
 

136. In binomial system most of the words are:

 
 
 
 

137. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

140. Protistan algae obtain their food as:

 
 
 
 

141. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

143. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

147. The zoospores of Ulothrix are :

 
 
 
 

148. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

151. Pinus microsporophyll bears:

 
 
 
 

152. Polystelic condition is found in:

 
 
 
 

153. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. Spermatophyta are characterized by producing:

 
 
 
 

158. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. The prothallus of fern is:

 
 
 
 

163. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

164. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

166. Cycas plant in appearance resembles :

 
 
 
 

167. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

169. The fungi that grow on wood are called:

 
 
 
 

170. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

176. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

178. What is absent in Deuteromycetes?

 
 
 
 

179. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

182. Which of the following are included in Tracheophyta?

 
 
 
 

183. Etiology includes the study of :

 
 
 
 

184. Pollination drop is:

 
 
 
 

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

 
 
 
 

186. Ovary is absent in :

 
 
 
 

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

 
 
 
 

188. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

190. Lichens are pioneers of vegetation in a :

 
 
 
 

191. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

194. Total parasites belong to:

 
 
 
 

195. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

197. The chloroplast of Chlamydomonas are:

 
 
 
 

198. Enteric bacteria are those bacteria that live:

 
 
 
 

199. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

201. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. Yeast grows more rapidly in:

 
 
 
 

205. Facultative parasite is:

 
 
 
 

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

 
 
 
 

207. Early blight of potato is caused by:

 
 
 
 

208. Cycas is:

 
 
 
 

209. Typhoid in man is caused by:

 
 
 
 

210. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

212. Common phycobiont in a lichen is :

 
 
 
 

213. Smut of maize is caused by :

 
 
 
 

214. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Which is absent from the xylem of Cycas?

 
 
 
 

224. The largest alga is:

 
 
 
 

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

 
 
 
 

226. Lichens are ecologically important because :

 
 
 
 

227. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

230. Quarantine regulations are concerned with:

 
 
 
 

231. Ovary is absent in:

 
 
 
 

232. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

234. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

236. Meristele of fern is:

 
 
 
 

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

 
 
 
 

238. Bacteria are considered to be plants because they:

 
 
 
 

239. What is a vector?

 
 
 
 

240. The sporangia of Selaginella are attached:

 
 
 
 

241. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

243. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

245. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

247. Antibiotics cure the disease by:

 
 
 
 

248. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

251. Which of the following does not contain chlorophyll?

 
 
 
 

252. Sometimes the bacterial cell is enclosed in:

 
 
 
 

253. Special feature of pollen grains of Pinus is :

 
 
 
 

254. Which fixes atmospheric nitrogen?

 
 
 
 

255. In Funaria :

 
 
 
 

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

 
 
 
 

257. 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:

 
 
 
 

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

 
 
 
 

259. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

261. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

263. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

265. Which of the following is a heterosporous pteridophyte?

 
 
 
 

266. Green plants are classified as :

 
 
 
 

267. Most of the lichens are composed of :

 
 
 
 

268. Black rust of wheat is caused by:

 
 
 
 

269. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

274. Which of the following is true for viruses?

 
 
 
 

275. Majority of lichens are :

 
 
 
 

276. Selaginella differs from Moss in having:

 
 
 
 

277. Bentham and Hooker placed gymnosperms:

 
 
 
 

278. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

280. Multicellular and jacketed sex organs are found in :

 
 
 
 

281. Mucilaginous canals in Cycas are found in :

 
 
 
 

282. Pinus gerardiana is :

 
 
 
 

283. In Selaginella, the microsporangia are:

 
 
 
 

284. Male gametes in Dryopteris are:

 
 
 
 

285. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

287. Protists which are diploid reproduce sexually by:

 
 
 
 

288. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

291. The source of litmus is :

 
 
 
 

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

 
 
 
 

293. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

295. Which one of the following statement is wrong?

 
 
 
 

296. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299. LSD is:

 
 
 
 

300. The photosynthetic protists are:

 
 
 
 

301. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

303. The term stele was given by:

 
 
 
 

304. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. Who named prion?

 
 
 
 

310. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

312. Yeast is a source of:

 
 
 
 

313. Which of the following is sago palm?

 
 
 
 

314. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

316. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. 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:

 
 
 
 

320. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

321. Fairy ring is the name given to:

 
 
 
 

322. Leaf spot of groundnut is caused by :

 
 
 
 

323. The sporangiophores in Rhizopus are:

 
 
 
 

324. The mycelium of Rhizopus is:

 
 
 
 

325. Select the wrong statement:

 
 
 
 

326. Liverworts are included in :

 
 
 
 

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

 
 
 
 

328. Bryophyta have a special character from other plants:

 
 
 
 

329. Pinus is:

 
 
 
 

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

 
 
 
 

331. Gametophyte is the main plant body in :

 
 
 
 

332. Rhizoids of Riccia are :

 
 
 
 

333. What is streptomycin?

 
 
 
 

334. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

342. Fern plants are:

 
 
 
 

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

 
 
 
 

344. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

349. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

351. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

352. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

356. Which is the nuclear material in bacteria?

 
 
 
 

357. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

360. The Rhizopus is:

 
 
 
 

361. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

363. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

366. 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:

 
 
 
 

367. Rhizophore of Selaginella is:

 
 
 
 

368.

 

369. Desired type of Cycas can be grown by:

 
 
 
 

370. Which condition is found in Cycas?

 
 
 
 

371. Spermatophyta are characterized by producing:

 
 
 
 

372. The development of Selaginella embryo is:

 
 
 
 

373. Cycas is :

 
 
 
 

374. The gametophyte of fern is as:

 
 
 
 

375. The development of sporangium in Selaginella is:

 
 
 
 

376. Pasteurized milk is:

 
 
 
 

377. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380. Pythium debaryanum is the causative agent of:

 
 
 
 

381. In a bacteriophage, DNA is present in:

 
 
 
 

382. Pasteur is famous for his:

 
 
 
 

383. Heterosporous pteridophytes always form:

 
 
 
 

384. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

387. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

389. Which of the following applies to Selaginella?

 
 
 
 

390. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

392. Generic name of mango is:

 
 
 
 

393. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

395. The similarity between cyanobacteria and bacteria:

 
 
 
 

396. Milk is converted to curd by:

 
 
 
 

397. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

401. What are Cyanobacteria?

 
 
 
 

402. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

404. Vascular tissue is found in :

 
 
 
 

405. Pasteurization of milk involves heating for:

 
 
 
 

406. Parmelia belongs to :

 
 
 
 

407. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

409. Triple antigen injection or vaccine are for:

 
 
 
 

410. Sleeping sickness disease in man is caused by:

 
 
 
 

411. Some bacteria cannot be killed easily because of:

 
 
 
 

412. Most resistant spore in bacteria is:

 
 
 
 

413. Metulae are found in:

 
 
 
 

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

 
 
 
 

415. Why is Cycas called a living fossil?

 
 
 
 

416. Endemic plants are characterised by their:

 
 
 
 

417. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. The leaves of Funaria are :

 
 
 
 

424. 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?

 
 
 
 

425. Sporophyte of Funaria is :

 
 
 
 

426. Seeds are characteristically found in:

 
 
 
 

427. Isomorphic type alternation of generation is found in:

 
 
 
 

428. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

430. Pneumonia is caused by:

 
 
 
 

431. Heterospory is the production of:

 
 
 
 

432. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

434. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. Which is a redwood tree?

 
 
 
 

438. Germination of the seed of Pinus is :

 
 
 
 

439. Yeast belongs to class:

 
 
 
 

440. Which class of Protozoa includes all parasitic forms?

 
 
 
 

441. Leprosy is caused by:

 
 
 
 

442. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

444. Enzymes are absent in:

 
 
 
 

445. 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?

 
 
 
 

446. True sexuality is not found in:

 
 
 
 

447. Black rust of wheat is caused by:

 
 
 
 

448. Oswald Tippo’s classification was based on :

 
 
 
 

449. The group algae possesses representatives belonging to kingdom:

 
 
 
 

450. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

452. Funaria is :

 
 
 
 

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

 
 
 
 

454. Mycoplasma was discovered by:

 
 
 
 

455. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

457. Which part of Riccia bears nurse cells?

 
 
 
 

458. Which among the following is a shrub?

 
 
 
 

459. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. The lambda phase is a:

 
 
 
 

463. Soil fertility is lost by the activities of:

 
 
 
 

464. Red rot of sugarcane is caused by :

 
 
 
 

465. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

468. The upper region of moss capsule is :

 
 
 
 

469. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

471. Spirogyra represents the :

 
 
 
 

472. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

476. Banana bunchy top is caused by :

 
 
 
 

477. Tautonyms are illegitimate in:

 
 
 
 

478. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

480. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

482. Vascular cryptogams is the term used for:

 
 
 
 

483. In Cycas which structure is equivalent to stamen?

 
 
 
 

484. Most primitive embryophytes are placed in:

 
 
 
 

485. Ergot is obtained from :

 
 
 
 

486. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

489. The leafy fern plant represents the:

 
 
 
 

490. Interferon is a:

 
 
 
 

491. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

493. In tracheophyta:

 
 
 
 

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

 
 
 
 

495. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

497. Gymnosperms could also be called as:

 
 
 
 

498. Bacteria growing on synthetic medium are called:

 
 
 
 

499. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

501. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

503. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

505. Saccharomyces is used in:

 
 
 
 

506. Clostridium can:

 
 
 
 

507. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

512. Iodine is obtained from :

 
 
 
 

513. Nitrogen-fixing bacteria may be located:

 
 
 
 

514. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

516. Economic importance of bacteria lies in their being:

 
 
 
 

517. Water-net is the name of:

 
 
 
 

518. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

520. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

522. The roots of Cycas are :

 
 
 
 

523. Fruits are not found in:

 
 
 
 

524. Which is a tautonym?

 
 
 
 

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

 
 
 
 

526. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

528. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

530. Which is an exception to cell theory?

 
 
 
 

531. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

533. Botulism is a:

 
 
 
 

534. Placenta in fern is:

 
 
 
 

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

 
 
 
 

536. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

538. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

541. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

543. All protozoans possess:

 
 
 
 

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

 
 
 
 

545. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

547. Mycoplasma are sensitive to:

 
 
 
 

548. Disease resistant plant varieties can be produced by :

 
 
 
 

549. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

552. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

558. The chief characteristic of bryophyta is that :

 
 
 
 

559. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

561. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

563. Funaria can be differentiated from Cycas :

 
 
 
 

564. Viruses have:

 
 
 
 

565. Cycas is similar to a mustard plant :

 
 
 
 

566. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

568. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

571. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

574. Photosynthetic bacteria have:

 
 
 
 

575. Which of the following is a monocot?

 
 
 
 

576. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

577. The ferns are usually found:

 
 
 
 

578. How is moss different from fern?

 
 
 
 

579. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

581. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

583. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

586. Club moss and Peat moss belong to:

 
 
 
 

587. Mycoplasma is different from bacteria due to:

 
 
 
 

588. Who among the following discovered virus?

 
 
 
 

589. TMV was isolated in crystalline form by:

 
 
 
 

590. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

593. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

596. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

599. Sexual reproduction in Rhizopus is by:

 
 
 
 

600. Lichens form the first community in

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. Which of the following have algal zone?

 
 
 
 

604. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

606. The sporophyte of Riccia is represented by :

 
 
 
 

607. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

612.

613. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

618. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

620. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

622. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

623. Kuru, a human disease is caused by:

 
 
 
 

624. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

629. All archaebacteria lack:

 
 
 
 

630. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

632. NBG of Lucknow is now named as:

 
 
 
 

633. How a fern differs from a moss?

 
 
 
 

634. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

637. The archegonia in Selaginella develop on:

 
 
 
 

638. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. The gametophyte of fern bears:

 
 
 
 

644. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

646. Ergot of rye is caused by:

 
 
 
 

647. Roots are absent in :

 
 
 
 

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

 
 
 
 

649. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

653. Citrus canker is caused by :

 
 
 
 

654. Centric discoid form of diatom is:

 
 
 
 

655. Ectocarpus produces:

 
 
 
 

656. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

658. Black rust of wheat is caused by:

 
 
 
 

659. In Gymnocarpeae the fruiting body is :

 
 
 
 

660. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

663. Methanogens belong to:

 
 
 
 

664. 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:

 
 
 
 

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

 
 
 
 

666. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

668. The smallest bacterium is:

 
 
 
 

669. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

675. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

680. Some biologists have used the term Mycetozoa for:

 
 
 
 

681. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

682. Cryptogams include :

 
 
 
 

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

 
 
 
 

684. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

686. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

688. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

690. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

693. Plasmids are:

 
 
 
 

694. Vascular cryptogam is the term used for :

 
 
 
 

695. Gram stain is used to:

 
 
 
 

696. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

698. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

700. Which of the following is a parasitic algae?

 
 
 
 

701. Which of the following is true for Selaginella?

 
 
 
 

702. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. Which have the largest antherozoid?

 
 
 
 

706. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

708. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

710. In Pteris, the archegonia are present:

 
 
 
 

711. 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:

 
 
 
 

712. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

713. Siphonogamy is found in:

 
 
 
 

714. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

716. Climbers are found in genus:

 
 
 
 

717. Facultative saprophyte is:

 
 
 
 

718. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

720. The archegonia of Selaginella are differentiated by:

 
 
 
 

721. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. The teeth of peristome of Funaria are :

 
 
 
 

726. Which is not true for Escherichia coli?

 
 
 
 

727. Fern prothallus is:

 
 
 
 

728. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

730. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

732. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

735. 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?

 
 
 
 

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

 
 
 
 

737. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

740. In Cycas:

 
 
 
 

741. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

743. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

745. Standard size of a herbarium sheet is:

 
 
 
 

746. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

748. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

755. In Gymnosperms endosperm is a:

 
 
 
 

756. The plants of Funaria grow :

 
 
 
 

757. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

762. The gametophyte of moss has distinct phases :

 
 
 
 

763. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

766. The fungi used as food are:

 
 
 
 

767. Oswald Tippo’s classification is:

 
 
 
 

768. Cycas revoluta is widely grown as :

 
 
 
 

769. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

772. Nitrifying bacteria play an important role by converting:

 
 
 
 

773. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

775. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

777. Pythium debaryanum is the causative agent of:

 
 
 
 

778. Azolla growing in paddy fields helps in:

 
 
 
 

779. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

781. To which country Antony van Leeuwenhoek belong?

 
 
 
 

782. The gametophyte produced by apospory is :

 
 
 
 

783. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

785. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

787. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

789. The most important property of yeast is:

 
 
 
 

790. The largest known bacterium is:

 
 
 
 

791. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

793. Cell walls of Gram-positive bacteria contain:

 
 
 
 

794. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. Which is a fungicide?

 
 
 
 

798. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

801. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. Pseudomycelium is found in:

 
 
 
 

805. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. In angiosperms double fertilization represents:

 
 
 
 

809. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

811. The prothallus of fern represents the plant:

 
 
 
 

812. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

814. Halophiles are the bacteria that require for growth:

 
 
 
 

815. Which of the following are absent in Mycoplasma?

 
 
 
 

816. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

818. The first to isolate a plant virus was:

 
 
 
 

819. The genetic material of poxvirus is:

 
 
 
 

820. Funaria is :

 
 
 
 

821. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

823. Ginkgo biloba is a:

 
 
 
 

824. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

827. Asexual reproductive body of Volvox is called:

 
 
 
 

828. Spirogyra differs from moss protonema in having :

 
 
 
 

829. The megasporangium of Selaginella is:

 
 
 
 

830. In Funaria, calyptra is derived from :

 
 
 
 

831. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

833. What is special feature of fern archegonia?

 
 
 
 

834. Embryophyta includes :

 
 
 
 

835. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

837. 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:

 
 
 
 

838. The two conjugating gametangia of Rhizopus are:

 
 
 
 

839. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

842. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

844. Penicillin was discovered by:

 
 
 
 

845. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

848. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

850. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

852. Bivalved siliceous shell or frustule occur in:

 
 
 
 

853. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

855. Smallpox is caused by:

 
 
 
 

856. Heterotrichous habit means :

 
 
 
 

857. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

859. The order generally ends with:

 
 
 
 

860. The fungi are usually:

 
 
 
 

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

 
 
 
 

862. The antibiotic is obtained from:

 
 
 
 

863. Absorptive nutrition is:

 
 
 
 

864. Cyathia is characterized by: