Quiz_Random

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Spirogyra represents the :

 
 
 
 

6. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

8. Male gametophyte of Selaginella is found:

 
 
 
 

9. Select the wrong statement:

 
 
 
 

10. The orders generally have the uniform endings:

 
 
 
 

11. Little leaf disease of Brinjal is caused by:

 
 
 
 

12. What are plasmids?

 
 
 
 

13. Smut of maize is caused by :

 
 
 
 

14. Synzoospore is produced in:

 
 
 
 

15. Meiosis in Ulothrix takes place:

 
 
 
 

16. In Pteris, the archegonia are present:

 
 
 
 

17. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

19. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

21. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

22. Mucilaginous canals in Cycas are found in :

 
 
 
 

23. In moss, conducting tissue is made up of

 
 
 
 

24. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Interferon is a:

 
 
 
 

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

 
 
 
 

29. The archegonia of Selaginella are differentiated by:

 
 
 
 

30. Select the correct statement: (NEET 2016)

 
 
 
 

31. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

32. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. The order generally ends with:

 
 
 
 

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

 
 
 
 

38. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

40. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Azolla growing in paddy fields helps in:

 
 
 
 

45. The coralloid roots are :

 
 
 
 

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

 
 
 
 

47. 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?

 
 
 
 

48. Antibiotic has been extracted from :

 
 
 
 

49. White rust of crucifers is caused by:

 
 
 
 

50. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

52. Which of the following is true for viruses?

 
 
 
 

53. Bacteria are placed under:

 
 
 
 

54. Reproduction in Cycas takes place by :

 
 
 
 

55. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

56. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. The fungi are usually:

 
 
 
 

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

 
 
 
 

61. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Water-net is the name of:

 
 
 
 

65. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

67. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. The leaves of Funaria are :

 
 
 
 

73. TMV was isolated in crystalline form by:

 
 
 
 

74. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

79. LSD is:

 
 
 
 

80. Which of the following are absent in Mycoplasma?

 
 
 
 

81. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

82. Ergot of rye is caused by:

 
 
 
 

83. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

85. Number of capsomeres forming capsid of TMV is:

 
 
 
 

86. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

88. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

90. Broad spectrum antibiotic is, which:

 
 
 
 

91. Who named prion?

 
 
 
 

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

 
 
 
 

93. Iodine is obtained from :

 
 
 
 

94. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

97. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

99. The microsporophylls on the cone of Cycas are :

 
 
 
 

100. Which of the following is a heterosporous pteridophyte?

 
 
 
 

101. Funaria is :

 
 
 
 

102. In Cycas which structure is equivalent to stamen?

 
 
 
 

103. Gram stain is used to:

 
 
 
 

104. Which class of Protozoa includes all parasitic forms?

 
 
 
 

105. Which is a tautonym?

 
 
 
 

106. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

110. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

112. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

115. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

117. Ulothrix produces :

 
 
 
 

118. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

127. Plasmids are:

 
 
 
 

128. The fern plant is:

 
 
 
 

129. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

131. Which of the following does not contain chlorophyll?

 
 
 
 

132. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

134. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

136. Cleavage polyembryony is found in :

 
 
 
 

137. Banana bunchy top is caused by :

 
 
 
 

138. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

140. 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?

 
 
 
 

141. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

143. Triple antigen injection or vaccine are for:

 
 
 
 

144. Each chloroplast in Spirogyra bears :

 
 
 
 

145. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

148. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

150. The DNA of E coli is:

 
 
 
 

151. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

154. Virus and bacteriophage are made-up of:

 
 
 
 

155. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

159. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

161. Who discovered streptomycin?

 
 
 
 

162. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

164. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

166. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

168. Winged pollen grains are found in :

 
 
 
 

169. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

171. In tracheophyta:

 
 
 
 

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

 
 
 
 

173. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

175. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

177. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

179. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

181. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

183. Generic name of mango is:

 
 
 
 

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

 
 
 
 

185. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

188. First animal pathogenic virus was discovered by:

 
 
 
 

189. Lichens are indicators of :

 
 
 
 

190. Methanogens belong to:

 
 
 
 

191. The lambda phase is a:

 
 
 
 

192. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

195. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

198. Virion refers to:

 
 
 
 

199. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. Pinus microsporophyll bears:

 
 
 
 

205. 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?

 
 
 
 

206. Most of the lichens are composed of :

 
 
 
 

207. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

211. Pteridophytes are also known as :

 
 
 
 

212. Ovary is absent in:

 
 
 
 

213. The Rhizopus gametes are formed in:

 
 
 
 

214. Photosynthetic protists belong to:

 
 
 
 

215. Which of the following applies to Selaginella?

 
 
 
 

216. Leaf spot of groundnut is caused by :

 
 
 
 

217.

 

218. How a fern differs from a moss?

 
 
 
 

219. Pollination in Cycas takes place by :

 
 
 
 

220. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

222. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

223. Which of the following have algal zone?

 
 
 
 

224. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

226. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

228. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

230. The gametophyte produced by apospory is :

 
 
 
 

231. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

233. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

235. What is the role of nitrifying bacteria?

 
 
 
 

236. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

238. Antibiotics cure the disease by:

 
 
 
 

239. An alga which is rich in proteins:

 
 
 
 

240. Black rust of wheat is caused by:

 
 
 
 

241. The tallest moss in the world is :

 
 
 
 

242. The antibiotic is obtained from:

 
 
 
 

243. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

245. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

247. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. Pasteurized milk is:

 
 
 
 

251. Lichens form the first community in

 
 
 
 

252. The largest alga is:

 
 
 
 

253. Chief constituents of bordeaux mixture are :

 
 
 
 

254. What is absent in Deuteromycetes?

 
 
 
 

255. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

257. In angiosperms double fertilization represents:

 
 
 
 

258. In Gymnosperms endosperm is a:

 
 
 
 

259. Clostridium can:

 
 
 
 

260. The fungi are mostly:

 
 
 
 

261. Lichens are ecologically important because :

 
 
 
 

262. The ascus of yeast contains:

 
 
 
 

263. Select the wrong statement:

 
 
 
 

264. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

266. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

270. Special feature of pollen grains of Pinus is :

 
 
 
 

271. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. Red rot of sugarcane is caused by :

 
 
 
 

276. Citrus canker is caused by:

 
 
 
 

277. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

279. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

286. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

288. 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:

 
 
 
 

289. Pteridophyta are also called:

 
 
 
 

290. All algae have:

 
 
 
 

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

 
 
 
 

292. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

293. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

296. In Gymnocarpeae the fruiting body is :

 
 
 
 

297. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

299. The central part of Funaria axis is :

 
 
 
 

300. The stele of Dryopteris is a:

 
 
 
 

301. Fern phloem lacks:

 
 
 
 

302. Sporophyte of fern is:

 
 
 
 

303. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

305. Seeds are characteristically found in :

 
 
 
 

306. Bacteria are found everywhere, except:

 
 
 
 

307. In a bacteriophage, DNA is present in:

 
 
 
 

308. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

310. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

312. Yeast grows more rapidly in:

 
 
 
 

313. The leaf of Cycas shows:

 
 
 
 

314. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

316. Embryophyta includes :

 
 
 
 

317. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

321. Water bloom is generally caused by :

 
 
 
 

322. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

324. Funaria can be differentiated from Cycas :

 
 
 
 

325. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

327. The disease apple scab is caused by:

 
 
 
 

328. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

331. 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:

 
 
 
 

332. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

334. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

337. 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:

 
 
 
 

338. Most primitive embryophytes are placed in :

 
 
 
 

339. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

341. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

344. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

346. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

348. Pasteurization of milk involves heating for:

 
 
 
 

349. What is special feature of fern archegonia?

 
 
 
 

350. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

353. Ovules are not found enclosed in ovary in :

 
 
 
 

354. Desired type of Cycas can be grown by:

 
 
 
 

355. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

358. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. Which one of the following statement is wrong?

 
 
 
 

362. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

365. Which is not true for Escherichia coli?

 
 
 
 

366. Fern prothallus produces:

 
 
 
 

367. Ovary is absent in :

 
 
 
 

368. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

370. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

372. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

374. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

376. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

379. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

381. All protozoans possess:

 
 
 
 

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

 
 
 
 

383. Lichens reproduce by :

 
 
 
 

384. Green plants are classified as :

 
 
 
 

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

 
 
 
 

386. The gametophyte of moss has distinct phases :

 
 
 
 

387. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

390. Which of the following is sago palm?

 
 
 
 

391. Redness of red sea is due to :

 
 
 
 

392. The fungi used as food are:

 
 
 
 

393. Which is a redwood tree?

 
 
 
 

394. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

396. Ergot is obtained from :

 
 
 
 

397. The term stele was given by:

 
 
 
 

398. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

401. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

405. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

407. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

409. An Hfr bacterium is one that contains:

 
 
 
 

410. Acellular slime mold is/are:

 
 
 
 

411. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

413. Which causes red tide?

 
 
 
 

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

 
 
 
 

415. The disease symptom necrosis refers to :

 
 
 
 

416. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. Vascular cryptogams is the term used for:

 
 
 
 

421. The zygospore in Rhizopus on germination forms:

 
 
 
 

422. The chromosomal number in:

 
 
 
 

423. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

425. Fruits are not found in :

 
 
 
 

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

 
 
 
 

427. The similarity between cyanobacteria and bacteria:

 
 
 
 

428. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

430. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

432. 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:

 
 
 
 

433. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

439. In moss, sporophyte is formed on:

 
 
 
 

440. Which organisms are the oldest life forms?

 
 
 
 

441. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

448. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

450. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

452. Total parasites belong to:

 
 
 
 

453. Woody climbers are known as :

 
 
 
 

454. Wine turns sour because of:

 
 
 
 

455. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

457. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

459. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

464. Which of the following are included in Tracheophyta?

 
 
 
 

465. The truncated cone of HIV consists of:

 
 
 
 

466.

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

 
 
 
 

468. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

470. Who discovered heterothallism in fungi?

 
 
 
 

471. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. Pneumonia is caused by:

 
 
 
 

475. Smallpox is caused by:

 
 
 
 

476. Germ theory of disease was proposed by:

 
 
 
 

477. Which condition is found in Cycas?

 
 
 
 

478. The upper region of moss capsule is :

 
 
 
 

479. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

481. Mostly type of zygospore in Ulothrix is:

 
 
 
 

482. The first to isolate a plant virus was:

 
 
 
 

483. Viruses are commonly transmitted in plants through:

 
 
 
 

484. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

486. Nitrifying bacteria play an important role by converting:

 
 
 
 

487. Winged seeds are found in :

 
 
 
 

488. Fruiting body of lichens is :

 
 
 
 

489. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

491. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

495. Pollination drop is:

 
 
 
 

496. Bivalved siliceous shell or frustule occur in:

 
 
 
 

497. Mycoplasma is different from bacteria due to:

 
 
 
 

498. Spermatophyta are characterized by producing:

 
 
 
 

499. The chloroplast of Chlamydomonas are:

 
 
 
 

500. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

504. Quarantine regulations are concerned with:

 
 
 
 

505. Ovules are not found enclosed in ovary in :

 
 
 
 

506. Cycas is different from mango in :

 
 
 
 

507. Psilotum is:

 
 
 
 

508. The source of litmus is :

 
 
 
 

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

 
 
 
 

510. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

512. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

514. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

515. Funaria is :

 
 
 
 

516. Late blight of potato is caused by :

 
 
 
 

517. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

519. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

521. The rhizoids of Funaria are :

 
 
 
 

522. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

524. Iodine is obtained from:

 
 
 
 

525. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

526. Mycoplasmas are not viruses in nature because:

 
 
 
 

527. The development of Selaginella embryo is:

 
 
 
 

528. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

530. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

534. Reserve food in Euglena is:

 
 
 
 

535. The sporangiophores in Rhizopus are:

 
 
 
 

536. Green plants are classified as:

 
 
 
 

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

 
 
 
 

538. Yeast belongs to class:

 
 
 
 

539. Ethylene oxide is widely used to:

 
 
 
 

540. 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?

 
 
 
 

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

 
 
 
 

542. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

544. Small epidermal swellings due to infection are called :

 
 
 
 

545. Cycas is similar to a mustard plant :

 
 
 
 

546. The chloroplast in Ulothrix is :

 
 
 
 

547. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

551. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

553. In Cycas:

 
 
 
 

554. Placenta in fern is:

 
 
 
 

555. Heterosporous pteridophytes always form:

 
 
 
 

556. Standard size of a herbarium sheet is:

 
 
 
 

557. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. The smallest unit of classification is:

 
 
 
 

563. Who discovered cyanophages?

 
 
 
 

564. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

566. Circular DNA is seen in:

 
 
 
 

567. The chief characteristic of class Ascomycetes is:

 
 
 
 

568. Mycoplasma are sensitive to:

 
 
 
 

569. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

571. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

573. The sporangium of fern contains nearly:

 
 
 
 

574. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

575. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

577. Which is absent from the xylem of Cycas?

 
 
 
 

578. Lichen show :

 
 
 
 

579. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

581. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

583. A gill of Agaricus:

 
 
 
 

584. Cell walls of Gram-positive bacteria contain:

 
 
 
 

585. What is a vector?

 
 
 
 

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

 
 
 
 

587. Kuru, a human disease is caused by:

 
 
 
 

588. In dinoflagellates, the two flagella are:

 
 
 
 

589. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. The antherozoids of Funaria are :

 
 
 
 

595. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

597. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. The largest known bacterium is:

 
 
 
 

604. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

606. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

608. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

610. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

612. The most important property of yeast is:

 
 
 
 

613. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

614. Leprosy is caused by:

 
 
 
 

615. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

620. The group algae possesses representatives belonging to kingdom:

 
 
 
 

621. Yeast is a source of:

 
 
 
 

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

 
 
 
 

623. Which fixes atmospheric nitrogen?

 
 
 
 

624. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

629. Simple polyembryony is found in :

 
 
 
 

630. In binomial system most of the words are:

 
 
 
 

631. Maximum diversity of life forms occurs in :

 
 
 
 

632. Cycas is:

 
 
 
 

633. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

635. Longest known virus is:

 
 
 
 

636. Sometimes the bacterial cell is enclosed in:

 
 
 
 

637. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

640. The genetic material of poxvirus is:

 
 
 
 

641. Which is an edible fungus?

 
 
 
 

642. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

644. Sexual reproduction of lichen is due to :

 
 
 
 

645. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

647. The teeth of peristome of Funaria are :

 
 
 
 

648. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

651. Vascular cryptogam is the term used for :

 
 
 
 

652. Zoogametes are not found in:

 
 
 
 

653. Aflatoxin is produced as a product in :

 
 
 
 

654. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. The zoospores of Ulothrix are :

 
 
 
 

659. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

661. Infective part of virus was discovered by:

 
 
 
 

662. What is streptomycin?

 
 
 
 

663. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

666. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

669. In Funaria, calyptra is derived from :

 
 
 
 

670. Lichens show :

 
 
 
 

671. Centric discoid form of diatom is:

 
 
 
 

672. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

674. In Herpes virus DNA is:

 
 
 
 

675. Rhizophore of Selaginella is:

 
 
 
 

676. Which one of the following is a monocot?

 
 
 
 

677. 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:

 
 
 
 

678. Photoautotrophic bacteria have:

 
 
 
 

679. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

683. The development of sporangium in Selaginella is:

 
 
 
 

684. Penicillin was discovered by:

 
 
 
 

685. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

687. Cocci types of bacteria are:

 
 
 
 

688. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

690. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

692. Aflatoxin is produced by:

 
 
 
 

693. Nannandria are:

 
 
 
 

694. Metulae are found in:

 
 
 
 

695. Which of the following is a parasitic algae?

 
 
 
 

696. Economic importance of bacteria lies in their being:

 
 
 
 

697. In moss, stomata are found:

 
 
 
 

698. Fruits are not found in:

 
 
 
 

699. Club moss is the common name of :

 
 
 
 

700. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

702. The sporophyte of Riccia is :

 
 
 
 

703. The lichens growing on rocks are called :

 
 
 
 

704. The fungi that grow on wood are called:

 
 
 
 

705. The gametophyte of fern is as:

 
 
 
 

706. Transfusion tissue is present in the leaflet of:

 
 
 
 

707. Botulinum toxin effects:

 
 
 
 

708. Soil fertility is lost by the activities of:

 
 
 
 

709. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

712. Heterospory is the production of:

 
 
 
 

713.

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

 
 
 
 

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

 
 
 
 

716. The flagella of Chlamydomonas are:

 
 
 
 

717. Most of the algae are :

 
 
 
 

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

 
 
 
 

719. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

721. Halophiles are the bacteria that require for growth:

 
 
 
 

722. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

724. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

726. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. Cryptogams include :

 
 
 
 

730. Typhoid in man is caused by:

 
 
 
 

731. Which is not found in bacteria?

 
 
 
 

732. Which of the following statement is correct?

 
 
 
 

733. The spur of Pinus roxburghii has :

 
 
 
 

734. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

736. Which among the following is a shrub?

 
 
 
 

737. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

740. Most primitive embryophytes are placed in:

 
 
 
 

741. The tree fern is:

 
 
 
 

742. Polystelic condition is found in:

 
 
 
 

743. In moss, peristomial teeth are:

 
 
 
 

744.

745. Pinus is:

 
 
 
 

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

 
 
 
 

747. Discovery of penicillin was based on:

 
 
 
 

748. Some bacteria cannot be killed easily because of:

 
 
 
 

749. 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:

 
 
 
 

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

 
 
 
 

751. Siphonogamy is found in:

 
 
 
 

752. Rhizopus belongs to:

 
 
 
 

753. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

756. Majority of lichens are :

 
 
 
 

757. Mycoplasma are:

 
 
 
 

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

 
 
 
 

759. The young leaves of Cycas have :

 
 
 
 

760. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

762. Germination of the seed of Pinus is :

 
 
 
 

763. Helotism word is used for the symbiosis between :

 
 
 
 

764. Spores of which plants have chloroplast:

 
 
 
 

765. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

767. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

769. Pythium debaryanum is the causative agent of:

 
 
 
 

770. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

775. Selaginella differs from Moss in having:

 
 
 
 

776. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

778. Lichens are the indicator of pollution :

 
 
 
 

779. The sporophyte of Riccia is represented by :

 
 
 
 

780. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

783. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

785. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

788. Viruses are considered to be:

 
 
 
 

789. Male gametes in Dryopteris are:

 
 
 
 

790. Common phycobiont in a lichen is :

 
 
 
 

791. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. Streptomyces falls under:

 
 
 
 

795. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

797. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

799. Downy mildew disease is caused by :

 
 
 
 

800. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

803. Liverworts are included in :

 
 
 
 

804. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

806. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

809. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

811. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

813. Pseudomycelium is found in:

 
 
 
 

814. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

819. Heterotrichous habit means :

 
 
 
 

820. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

822. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

825. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

829. The nucleus of bacteria is:

 
 
 
 

830. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

835. Which part of Riccia bears nurse cells?

 
 
 
 

836. Viroids have:

 
 
 
 

837. The sexual reproductive organs in Rhizopus are:

 
 
 
 

838. Fairy ring is the name given to:

 
 
 
 

839. Which have the largest antherozoid?

 
 
 
 

840. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

842. Most resistant spore in bacteria is:

 
 
 
 

843. Meristele of fern is:

 
 
 
 

844. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

845. Viruses have:

 
 
 
 

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

 
 
 
 

847. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

853. Bentham and Hooker placed gymnosperms:

 
 
 
 

854. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

856. Cycas revoluta is widely grown as :

 
 
 
 

857. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

859. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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