Quiz_Random

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

10. Penicillin is obtained from:

 
 
 
 

11. Heterotrichous habit means :

 
 
 
 

12. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

14. Which of the following are absent in Mycoplasma?

 
 
 
 

15. Which is absent from the xylem of Cycas?

 
 
 
 

16. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

18. Yeast belongs to class:

 
 
 
 

19. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

21. Which of the following is a monocot?

 
 
 
 

22. The zygospore in Rhizopus on germination forms:

 
 
 
 

23. Etiology includes the study of :

 
 
 
 

24. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Which of the following are included in Tracheophyta?

 
 
 
 

30. NBG of Lucknow is now named as:

 
 
 
 

31. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. Diphtheria is caused by:

 
 
 
 

35. Bryophyta have a special character from other plants:

 
 
 
 

36. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

38. Ulothrix produces :

 
 
 
 

39. The chief characteristic of class Ascomycetes is:

 
 
 
 

40. What are plasmids?

 
 
 
 

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

 
 
 
 

42. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

44. In binomial system most of the words are:

 
 
 
 

45. Most primitive embryophytes are placed in:

 
 
 
 

46. The gametophyte produced by apospory is :

 
 
 
 

47. Sexual reproduction of lichen is due to :

 
 
 
 

48. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. The orders generally have the uniform endings:

 
 
 
 

52. Mycoplasmas are not viruses in nature because:

 
 
 
 

53. Reproduction in Cycas takes place by :

 
 
 
 

54. Most resistant spore in bacteria is:

 
 
 
 

55. Funaria can be differentiated from Cycas :

 
 
 
 

56. Saccharomyces is used in:

 
 
 
 

57. To which class Riccia belongs :

 
 
 
 

58. Yeast is a source of:

 
 
 
 

59. Proembryo in Pinus is :

 
 
 
 

60. An Hfr bacterium is one that contains:

 
 
 
 

61. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Red rot of sugarcane is caused by :

 
 
 
 

65. Helotism word is used for the symbiosis between :

 
 
 
 

66. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

67. Fruits are not found in :

 
 
 
 

68. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

70. Enteric bacteria are those bacteria that live:

 
 
 
 

71. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

75. Longest known virus is:

 
 
 
 

76. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

78. Red rot of sugarcane is caused by:

 
 
 
 

79. Citrus canker is caused by:

 
 
 
 

80. The largest known bacterium is:

 
 
 
 

81. All algae have:

 
 
 
 

82. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

84. In Herpes virus DNA is:

 
 
 
 

85. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

87. Embryophyta includes :

 
 
 
 

88. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

90. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

92. Green plants are classified as:

 
 
 
 

93. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

95. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

101.

102. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

104. In Cycas microsporangia are borne on:

 
 
 
 

105. Heterospory and ligulate leaves are a feature of:

 
 
 
 

106. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

108. The chloroplast of Chlamydomonas are:

 
 
 
 

109. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

111. Tautonyms are illegitimate in:

 
 
 
 

112. John Hutchinson divided dicots into two divisions:

 
 
 
 

113. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

115. In Selaginella, the microsporangia are:

 
 
 
 

116. Pythium debaryanum is the causative agent of:

 
 
 
 

117. Pollination in Cycas takes place by :

 
 
 
 

118. Bacteria are found everywhere, except:

 
 
 
 

119. Which causes red tide?

 
 
 
 

120. . Tapetum develops in:

 
 
 
 

121. Photosynthetic protists belong to:

 
 
 
 

122. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

125. Nannandria are:

 
 
 
 

126. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

129. Streptomyces falls under:

 
 
 
 

130. What is streptomycin?

 
 
 
 

131. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

133. 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?

 
 
 
 

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

 
 
 
 

135. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

136. The central part of Funaria axis is :

 
 
 
 

137. Fern plants are:

 
 
 
 

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

 
 
 
 

139. Late blight of potato is caused by:

 
 
 
 

140. Endemic plants are characterised by their:

 
 
 
 

141. Each chloroplast in Spirogyra bears :

 
 
 
 

142. Selaginella differs from Moss in having:

 
 
 
 

143. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

145. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

147. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

150.

151. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

155. How is moss different from fern?

 
 
 
 

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

 
 
 
 

157. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

159. In Gymnocarpeae the fruiting body is :

 
 
 
 

160. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

162. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. The largest alga is:

 
 
 
 

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

 
 
 
 

167. The photosynthetic protists are:

 
 
 
 

168. The antibiotic is obtained from:

 
 
 
 

169. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

174. Linnaeus is credited with introducing:

 
 
 
 

175. Select the wrong statement:

 
 
 
 

176. Cleavage polyembryony is found in :

 
 
 
 

177. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

180. Ovules are not found enclosed in ovary in :

 
 
 
 

181. Funaria is a Bryophyta because :

 
 
 
 

182. Most of the lichens are composed of :

 
 
 
 

183. Funaria is :

 
 
 
 

184. Special feature of pollen grains of Pinus is :

 
 
 
 

185. Protistan algae obtain their food as:

 
 
 
 

186. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

188. Discovery of penicillin was based on:

 
 
 
 

189. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

191. Mycoplasma is different from bacteria due to:

 
 
 
 

192. 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:

 
 
 
 

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

 
 
 
 

194. Gametophyte is the main plant body in :

 
 
 
 

195. The sporangia of Selaginella are attached:

 
 
 
 

196. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

198. Which of the following is sago palm?

 
 
 
 

199. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

201. Acellular slime mold is/are:

 
 
 
 

202. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

204. In Pteris, the roots are:

 
 
 
 

205. The upper region of moss capsule is :

 
 
 
 

206. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

208. Plasmids are:

 
 
 
 

209. Vegetative reproduction in Cycas is by means of :

 
 
 
 

210. The smallest unit of classification is:

 
 
 
 

211. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

213. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

214. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

218. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

220. Small epidermal swellings due to infection are called :

 
 
 
 

221. Genetic material of TMV is:

 
 
 
 

222. Funaria are commonly found :

 
 
 
 

223. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

225. The megaspore of Selaginella on germination produces:

 
 
 
 

226. Bivalved siliceous shell or frustule occur in:

 
 
 
 

227. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

229. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

232. The tallest moss in the world is :

 
 
 
 

233. The chief characteristic of bryophyta is that :

 
 
 
 

234. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

237. True sexuality is not found in:

 
 
 
 

238. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

240. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

243. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

245. Pollination drop is:

 
 
 
 

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

 
 
 
 

247. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

252. Roots are absent in :

 
 
 
 

253. 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:

 
 
 
 

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

 
 
 
 

255. Protists which are diploid reproduce sexually by:

 
 
 
 

256. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

259. Bacteriophages have been used as:

 
 
 
 

260. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. Cell walls of Gram-positive bacteria contain:

 
 
 
 

264. The archegonia in Selaginella develop on:

 
 
 
 

265. In Pteris, the archegonia are present:

 
 
 
 

266. Sleeping sickness disease in man is caused by:

 
 
 
 

267. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

270. Amoeba is a member of the phylum:

 
 
 
 

271. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. Triple antigen injection or vaccine are for:

 
 
 
 

276. Which organisms are the oldest life forms?

 
 
 
 

277. In a diplontic life cycle:

 
 
 
 

278. Mixed cropping helps :

 
 
 
 

279. The nucleus of bacteria is:

 
 
 
 

280. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

282. The Rhizopus is:

 
 
 
 

283. In Cycas:

 
 
 
 

284. Heterospory is the production of:

 
 
 
 

285. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

288. The truncated cone of HIV consists of:

 
 
 
 

289. Nitrifying bacteria play an important role by converting:

 
 
 
 

290. Nitrogen-fixing bacteria may be located:

 
 
 
 

291. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

294. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

296. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

298. Where does meiosis occur in yeast?

 
 
 
 

299. Lichens reproduce by :

 
 
 
 

300. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

304. Which is a fungicide?

 
 
 
 

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

 
 
 
 

306. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

311. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. Protozoans are considered animals because these are:

 
 
 
 

316. In angiosperms double fertilization represents:

 
 
 
 

317. Liverworts are included in :

 
 
 
 

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

 
 
 
 

319. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

321. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

323. All archaebacteria lack:

 
 
 
 

324. Total parasites belong to:

 
 
 
 

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

 
 
 
 

326. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

330. In Funaria, calyptra is derived from :

 
 
 
 

331. Some biologists have used the term Mycetozoa for:

 
 
 
 

332. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. Halophiles are the bacteria that require for growth:

 
 
 
 

336. Germination of the seed of Pinus is :

 
 
 
 

337. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

339. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. Desired type of Cycas can be grown by:

 
 
 
 

344. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

346. Which part of Riccia bears nurse cells?

 
 
 
 

347. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

348. Placenta in fern is:

 
 
 
 

349. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

351. Oswald Tippo’s classification was based on :

 
 
 
 

352. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

357. Interferon is a:

 
 
 
 

358. Spermatophyta are characterized by producing:

 
 
 
 

359. Black rust of wheat is caused by:

 
 
 
 

360. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

366. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

368. Reserve food in Euglena is:

 
 
 
 

369. First animal pathogenic virus was discovered by:

 
 
 
 

370. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

373. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

376. Funaria is :

 
 
 
 

377. The gametophyte of fern is as:

 
 
 
 

378. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

380. Male gametophyte of Selaginella is found:

 
 
 
 

381. Which is not found in bacteria?

 
 
 
 

382. Pasteur is famous for his:

 
 
 
 

383. Late blight of potato is caused by :

 
 
 
 

384. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

385. Lichens are the indicator of pollution :

 
 
 
 

386. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

389. In moss, calyptra is formed from:

 
 
 
 

390. Facultative parasite is:

 
 
 
 

391. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

394. The leaf of Cycas shows:

 
 
 
 

395. The coralloid roots are :

 
 
 
 

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

 
 
 
 

397. Club moss and Peat moss belong to:

 
 
 
 

398. Which of the following shows heterotrichous habit?

 
 
 
 

399. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

401. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

406. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

409. Which is a tautonym?

 
 
 
 

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

 
 
 
 

411. Winged seeds are found in :

 
 
 
 

412. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

414. Most of the algae are :

 
 
 
 

415. 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:

 
 
 
 

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

 
 
 
 

417. Why is Cycas called a living fossil?

 
 
 
 

418. Seeds are characteristically found in:

 
 
 
 

419. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

422. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

424. Ectocarpus produces:

 
 
 
 

425. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

427. Cyanophage is a virus that attacks:

 
 
 
 

428. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. Embryo formation is not known in :

 
 
 
 

432. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

434. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

436. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

438. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

442. The fungi are usually:

 
 
 
 

443. Generic name of mango is:

 
 
 
 

444. Germ theory of disease was proposed by:

 
 
 
 

445. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

447. Vascular tissue is found in :

 
 
 
 

448. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

452. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

454. The DNA of E coli is:

 
 
 
 

455. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

458. The fern plant is:

 
 
 
 

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

 
 
 
 

460. Iodine is obtained from:

 
 
 
 

461. The ferns are usually found:

 
 
 
 

462. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

468. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

470. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

472. Number of capsomeres forming capsid of TMV is:

 
 
 
 

473. Azolla growing in paddy fields helps in:

 
 
 
 

474. Broad spectrum antibiotic is, which:

 
 
 
 

475. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

477. Meristele of fern is:

 
 
 
 

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

 
 
 
 

479. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. Which is not true for Escherichia coli?

 
 
 
 

483. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

485. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

487. Ovules are not found enclosed in ovary of:

 
 
 
 

488. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

490. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

492. The order generally ends with:

 
 
 
 

493. Cycas is:

 
 
 
 

494. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

496. LSD is:

 
 
 
 

497. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

500. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

502. 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?

 
 
 
 

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

 
 
 
 

504. The tree fern is:

 
 
 
 

505. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

507. Aflatoxin is produced by:

 
 
 
 

508. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

512. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

514. Kuru, a human disease is caused by:

 
 
 
 

515. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

517. The most primitive vascular plants is:

 
 
 
 

518. 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:

 
 
 
 

519. In Funaria :

 
 
 
 

520. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

522. What is a vector?

 
 
 
 

523. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

525. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

531. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

535. Viruses are considered to be:

 
 
 
 

536. Lichens form the first community in

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

540. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

542. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

545. Which one of the following statement is wrong?

 
 
 
 

546. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

551. The fungi are mostly:

 
 
 
 

552. The chloroplast in Ulothrix is :

 
 
 
 

553. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

555. The two conjugating gametangia of Rhizopus are:

 
 
 
 

556. Woody climbers are known as :

 
 
 
 

557. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

558. What is mycorrhiza?

 
 
 
 

559. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

561. Lichens show :

 
 
 
 

562. Ovary is absent in :

 
 
 
 

563. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

565. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. Red rot of sugarcane is caused by :

 
 
 
 

573. Green plants are classified as :

 
 
 
 

574. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

576. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

580. The disease apple scab is caused by:

 
 
 
 

581. Among the algae kelps are :

 
 
 
 

582. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

584. The sexual reproductive organs in Rhizopus are:

 
 
 
 

585. Diploxylic vascular bundles are found in:

 
 
 
 

586. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

589. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

592. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

594. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

597. Water-borne bacterial diseases are:

 
 
 
 

598. The sporophyte of Riccia is represented by :

 
 
 
 

599. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

601. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

604. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

607. Which of the following have a prokaryotic cell?

 
 
 
 

608.

 

609. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

611. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

613. Who discovered streptomycin?

 
 
 
 

614. The development of sporangium in Selaginella is:

 
 
 
 

615. Common phycobiont in a lichen is :

 
 
 
 

616. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

618.

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

 
 
 
 

620. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

622. Bacteria which are spherical are called:

 
 
 
 

623. Select the correct statement: (NEET 2016)

 
 
 
 

624. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

626. Vascular cryptogams is the term used for:

 
 
 
 

627. Which of the following statement is correct?

 
 
 
 

628. Methanogens belong to:

 
 
 
 

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

 
 
 
 

630. The stele of Dryopteris is a:

 
 
 
 

631. The role of meiosis is for:

 
 
 
 

632. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

634. Psilotum is:

 
 
 
 

635. Botulism is a:

 
 
 
 

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

 
 
 
 

637. Lichen show :

 
 
 
 

638. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

640. Cycas is :

 
 
 
 

641. Pollination in Pinus is :

 
 
 
 

642. Leprosy is caused by:

 
 
 
 

643. Majority of lichens are :

 
 
 
 

644. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

648. Bacteria differ from viruses in being sensitive to:

 
 
 
 

649. In moss, sporophyte is formed on:

 
 
 
 

650. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

652. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

654. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

657. Water-net is the name of:

 
 
 
 

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

 
 
 
 

659. Which is a gametophytic tissue?

 
 
 
 

660. In tracheophyta:

 
 
 
 

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

 
 
 
 

662. Standard size of a herbarium sheet is:

 
 
 
 

663. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

665. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

667. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

669. Gram stain is used to:

 
 
 
 

670. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

674. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

676. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

678. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

681. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

683. All protozoans possess:

 
 
 
 

684. Most primitive group of vascular plants are:

 
 
 
 

685. Botulinum toxin effects:

 
 
 
 

686. Bacteria are placed under:

 
 
 
 

687. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

690. Which is a redwood tree?

 
 
 
 

691. 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:

 
 
 
 

692. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

693. Which of the following is true for Selaginella?

 
 
 
 

694. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

699. The gametophyte of moss has distinct phases :

 
 
 
 

700. E coli is a:

 
 
 
 

701. How a fern differs from a moss?

 
 
 
 

702. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

707. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

710. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

712. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

714. Rhizopus and yeast are usually:

 
 
 
 

715. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

718. Coenogamete is found in:

 
 
 
 

719. Pneumonia is caused by:

 
 
 
 

720. Which class of Protozoa includes all parasitic forms?

 
 
 
 

721. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

724. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

726. Absorptive nutrition is:

 
 
 
 

727. Sometimes the bacterial cell is enclosed in:

 
 
 
 

728. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

731. Pythium debaryanum is the causative agent of:

 
 
 
 

732. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

733. Fruits are not found in Cycas because:

 
 
 
 

734. Polystelic condition is found in:

 
 
 
 

735. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

737. Bentham and Hooker placed gymnosperms:

 
 
 
 

738. Who named prion?

 
 
 
 

739. Male gametes in Dryopteris are:

 
 
 
 

740. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

742. Which of the following applies to Selaginella?

 
 
 
 

743. Clostridium can:

 
 
 
 

744. In moss, reduction division occurs in :

 
 
 
 

745. Anoxygenic photosynthesis occurs in:

 
 
 
 

746. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

749. Fruits are not found in:

 
 
 
 

750. Fern prothallus is:

 
 
 
 

751. Aflatoxin is produced as a product in :

 
 
 
 

752. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

759. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. Antibiotics cure the disease by:

 
 
 
 

765. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

766. Winged pollen grains are found in :

 
 
 
 

767. Vascular cryptogam is the term used for :

 
 
 
 

768. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

770. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

772. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

774. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

776. 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?

 
 
 
 

777. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

780. Seeds are characteristically found in :

 
 
 
 

781. In moss, conducting tissue is made up of

 
 
 
 

782. One of the distinctive feature of Spirogyra is :

 
 
 
 

783. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

786. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

788. Spirogyra represents the :

 
 
 
 

789. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

791. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

793. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

795. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

798. Ginkgo biloba is a:

 
 
 
 

799. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

801. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

803. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. Indusium in Dryopteris is:

 
 
 
 

808. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

809. In moss, sporogenous tissue arises from:

 
 
 
 

810. Circular DNA is seen in:

 
 
 
 

811. Which bacteria convert nitrate into nitrogen?

 
 
 
 

812. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

814. An alga which is rich in proteins:

 
 
 
 

815. Mycoplasma contains:

 
 
 
 

816. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

818. Bacteria are considered to be plants because they:

 
 
 
 

819. The antherozoids of Funaria are :

 
 
 
 

820. Which is the correct statement about Selaginella?

 
 
 
 

821. Azolla and Salvinia both are:

 
 
 
 

822. Ovules are not found enclosed in ovary in :

 
 
 
 

823. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

825. The first to isolate a plant virus was:

 
 
 
 

826. Which of the following does not contain chlorophyll?

 
 
 
 

827. Fertility of the soil is increased by:

 
 
 
 

828. The alga, Spirogyra are found in :

 
 
 
 

829. Sexual reproduction in Rhizopus is by:

 
 
 
 

830. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

832. Lichens are indicators of :

 
 
 
 

833. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

836. In a bacteriophage, DNA is present in:

 
 
 
 

837. Bryophyta have been placed in cryptogams because:

 
 
 
 

838. Usually, bacteria reproduce by:

 
 
 
 

839. To which country Antony van Leeuwenhoek belong?

 
 
 
 

840. Economic importance of bacteria lies in their being:

 
 
 
 

841. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

844. The lambda phase is a:

 
 
 
 

845. The fungi used as food are:

 
 
 
 

846. Cycas revoluta is widely grown as :

 
 
 
 

847. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

852. The microsporophylls on the cone of Cycas are :

 
 
 
 

853. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

858. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

860. Mycoplasma was discovered by:

 
 
 
 

861. Select the wrong statement:

 
 
 
 

862. Metulae are found in:

 
 
 
 

863. Maximum diversity of life forms occurs in :

 
 
 
 

864. Bacteria growing on synthetic medium are called: