Quiz_Random

1. The sporophyte of Riccia is :

 
 
 
 

2. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

4. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

5. Ergot is obtained from :

 
 
 
 

6. Smallpox is caused by:

 
 
 
 

7. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

9. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

11. 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?

 
 
 
 

12. Which of the following is a monocot?

 
 
 
 

13. 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:

 
 
 
 

14. The upper region of moss capsule is :

 
 
 
 

15. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

17. Choose the correct statement about Spirogyra:

 
 
 
 

18. Roots are absent in :

 
 
 
 

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

 
 
 
 

20. Endemic plants are characterised by their:

 
 
 
 

21. In binomial system most of the words are:

 
 
 
 

22. Azolla and Salvinia both are:

 
 
 
 

23. The development of Selaginella embryo is:

 
 
 
 

24. Bacteria are placed under:

 
 
 
 

25. Some biologists have used the term Mycetozoa for:

 
 
 
 

26. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Pasteur is famous for his:

 
 
 
 

32. Lichens are pioneers of vegetation in a :

 
 
 
 

33. Lichens are ecologically important because :

 
 
 
 

34. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

36. Zoogametes are not found in:

 
 
 
 

37. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

39. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

41. Which of the following lichens is harmful?

 
 
 
 

42. Most appropriate word for protozoans is:

 
 
 
 

43. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

44. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. Fern prothallus is:

 
 
 
 

48. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

50. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

52. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

54. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Penicillin was discovered by:

 
 
 
 

61. Acetobacter is useful in:

 
 
 
 

62. The Rhizopus is:

 
 
 
 

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

 
 
 
 

64. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. In a bacteriophage, DNA is present in:

 
 
 
 

68. Red rot of sugarcane is caused by:

 
 
 
 

69. Which statement is wrong in regard to bacteria?

 
 
 
 

70. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

72. Infective part of virus was discovered by:

 
 
 
 

73. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. 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:

 
 
 
 

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

 
 
 
 

85. Bentham and Hooker placed gymnosperms:

 
 
 
 

86. 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:

 
 
 
 

87. What are Cyanobacteria?

 
 
 
 

88. Mycoplasma are:

 
 
 
 

89. The most important property of yeast is:

 
 
 
 

90. What is special feature of fern archegonia?

 
 
 
 

91. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

93. The mode of nutrition of bacteria is usually:

 
 
 
 

94. The gametophyte of fern is as:

 
 
 
 

95. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

97. Cycas is:

 
 
 
 

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

 
 
 
 

99. Cap cells are found in the filament of:

 
 
 
 

100. Select the wrong statement:

 
 
 
 

101. Funaria is :

 
 
 
 

102. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

104. Fruits are not found in :

 
 
 
 

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

 
 
 
 

106. Rhizophore of Selaginella is:

 
 
 
 

107. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

109. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

110. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

112. The role of meiosis is for:

 
 
 
 

113. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

115. The leaves of Funaria are :

 
 
 
 

116. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

118. The most primitive vascular plants is:

 
 
 
 

119. Black rust of wheat is caused by:

 
 
 
 

120. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

122. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

124. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

127. Interferon is a:

 
 
 
 

128. The similarity between cyanobacteria and bacteria:

 
 
 
 

129. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

132. Coenogamete is found in:

 
 
 
 

133. Seeds are characteristically found in:

 
 
 
 

134. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

137. Pollination drop is:

 
 
 
 

138. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

142. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

144. Bryophyta have a special character from other plants:

 
 
 
 

145. Vegetative reproduction in Cycas is by means of :

 
 
 
 

146. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

151. 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?

 
 
 
 

152. The archegonia of Selaginella are differentiated by:

 
 
 
 

153. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

155. Placenta in fern is:

 
 
 
 

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

 
 
 
 

157. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

159. Heterotrichous habit means :

 
 
 
 

160. In moss, stomata are found:

 
 
 
 

161. Mixed cropping helps :

 
 
 
 

162. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. Generic name of mango is:

 
 
 
 

166. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

169. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

171. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

173. The stele of Dryopteris is a:

 
 
 
 

174. How a fern differs from a moss?

 
 
 
 

175. Ovary is absent in :

 
 
 
 

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

 
 
 
 

177. The tree fern is:

 
 
 
 

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

 
 
 
 

179. Green plants are classified as:

 
 
 
 

180. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

182. In moss, reduction division occurs in :

 
 
 
 

183. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

188. The term stele was given by:

 
 
 
 

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

 
 
 
 

190. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

192. Cryptogams include :

 
 
 
 

193. Transfusion tissue is present in the leaflet of:

 
 
 
 

194. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

196. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

198. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

200. 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:

 
 
 
 

201. Diploxylic vascular bundles are found in:

 
 
 
 

202. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

205. Ginkgo biloba is a:

 
 
 
 

206. The sporangium of fern contains nearly:

 
 
 
 

207. Methanogens belong to:

 
 
 
 

208. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

210. Yeast is a source of:

 
 
 
 

211. The young leaves of Cycas have :

 
 
 
 

212. Which causes red tide?

 
 
 
 

213. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. Which is not found in bacteria?

 
 
 
 

217. Lichens are the indicator of pollution :

 
 
 
 

218. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

222. Chemosynthetic bacteria are:

 
 
 
 

223. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

225. Pteridophyta are also called:

 
 
 
 

226. Ulothrix produces :

 
 
 
 

227. The zygospore in Rhizopus on germination forms:

 
 
 
 

228. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

231. The fern plant is:

 
 
 
 

232. Saccharomyces is well known for:

 
 
 
 

233. Common phycobiont in a lichen is :

 
 
 
 

234.

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

 
 
 
 

236. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

238. Virion refers to:

 
 
 
 

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

 
 
 
 

240. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

241. Fern prothallus produces:

 
 
 
 

242. What is a vector?

 
 
 
 

243. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

245. Wine turns sour because of:

 
 
 
 

246. The seedless plants which possess vascular tissues are:

 
 
 
 

247. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

249. Most primitive embryophytes are placed in :

 
 
 
 

250. Heterosporous pteridophytes always form:

 
 
 
 

251. Chemosynthetic bacteria are:

 
 
 
 

252. Proembryo in Pinus is :

 
 
 
 

253. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

255. In angiosperms double fertilization represents:

 
 
 
 

256. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

259. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

261. Yeast belongs to class:

 
 
 
 

262. Plasmids are:

 
 
 
 

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

 
 
 
 

264. Longest known virus is:

 
 
 
 

265. Meristele of fern is:

 
 
 
 

266. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

268. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

271. An alga which is rich in proteins:

 
 
 
 

272. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. The flagella of Chlamydomonas are:

 
 
 
 

276. Which is absent from the xylem of Cycas?

 
 
 
 

277. All protozoans possess:

 
 
 
 

278. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

282. Rhizopus and yeast are usually:

 
 
 
 

283. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

287. Which of the following are absent in Mycoplasma?

 
 
 
 

288. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

290. Psilotum is:

 
 
 
 

291. Which of the following is true for viruses?

 
 
 
 

292. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

295. Typhoid in man is caused by:

 
 
 
 

296. Which of the following is true for Selaginella?

 
 
 
 

297. The chromosomal number in:

 
 
 
 

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

 
 
 
 

299. Which of the following is a parasitic algae?

 
 
 
 

300. Select the wrong statement:

 
 
 
 

301. Rhizopus belongs to:

 
 
 
 

302. Which of the following does not contain chlorophyll?

 
 
 
 

303. Most resistant spore in bacteria is:

 
 
 
 

304. Downy mildew disease is caused by :

 
 
 
 

305. Nannandria are:

 
 
 
 

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

 
 
 
 

307. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

309. Viruses are considered to be:

 
 
 
 

310. The gametophyte of moss has distinct phases :

 
 
 
 

311. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

313. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

314. In moss, sporogenous tissue arises from:

 
 
 
 

315. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

317. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

321. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

323. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. Which of the following have algal zone?

 
 
 
 

327. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

330.

 

331. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

334. Which of the following have a prokaryotic cell?

 
 
 
 

335. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

337. Ovules are not found enclosed in ovary in :

 
 
 
 

338. Iodine is obtained from :

 
 
 
 

339. In Cycas:

 
 
 
 

340. Which one of the following statement is wrong?

 
 
 
 

341. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

345. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. Siphonogamy is found in:

 
 
 
 

349. Funaria can be differentiated from Cycas :

 
 
 
 

350. Male gametes in Dryopteris are:

 
 
 
 

351. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. Cyanophage is a virus that attacks:

 
 
 
 

356. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

358. Gram stain is used to:

 
 
 
 

359. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

361. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

367. Which have the largest antherozoid?

 
 
 
 

368. Which is a gametophytic tissue?

 
 
 
 

369. What is mycorrhiza?

 
 
 
 

370. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

374. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

376. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

381. Which of the following are included in Tracheophyta?

 
 
 
 

382. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

385. Where does meiosis occur in yeast?

 
 
 
 

386. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

388. In Selaginella, the microsporangia are:

 
 
 
 

389. Kuru, a human disease is caused by:

 
 
 
 

390. Which part of Riccia bears nurse cells?

 
 
 
 

391. The group algae possesses representatives belonging to kingdom:

 
 
 
 

392. In moss, peristomial teeth are:

 
 
 
 

393. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

395. Red rot of sugarcane is caused by :

 
 
 
 

396. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

398. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

400. Cycas is different from mango in :

 
 
 
 

401. The alga, Spirogyra are found in :

 
 
 
 

402. The plants of Funaria grow :

 
 
 
 

403. Pythium debaryanum is the causative agent of:

 
 
 
 

404. Germ theory of disease was proposed by:

 
 
 
 

405. Protistan algae obtain their food as:

 
 
 
 

406. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

408. The disease apple scab is caused by:

 
 
 
 

409. Indusium in Dryopteris is:

 
 
 
 

410. Which of the following statement is correct?

 
 
 
 

411. The roots of Cycas are :

 
 
 
 

412. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

414. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

415. In Cycas which structure is equivalent to stamen?

 
 
 
 

416. Simple polyembryony is found in :

 
 
 
 

417. Sometimes the bacterial cell is enclosed in:

 
 
 
 

418. The leaf of Cycas shows:

 
 
 
 

419. Economic importance of bacteria lies in their being:

 
 
 
 

420. Which of the following statements is not correct?

 
 
 
 

421. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

426. Which group of algae have an incipient nucleus?

 
 
 
 

427. The prothallus of fern represents the plant:

 
 
 
 

428. Pneumonia is caused by:

 
 
 
 

429. Cycas plant in appearance resembles :

 
 
 
 

430. The leaves of Funaria are :

 
 
 
 

431. Virus and bacteriophage are made-up of:

 
 
 
 

432. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

434. The fungi used as food are:

 
 
 
 

435. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

438. Mycoplasma was discovered by:

 
 
 
 

439. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

442. 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?

 
 
 
 

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

 
 
 
 

444. Which one of the following is a monocot?

 
 
 
 

445. To which class Riccia belongs :

 
 
 
 

446. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. Funaria is :

 
 
 
 

450. Bivalved siliceous shell or frustule occur in:

 
 
 
 

451. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

453. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

455. Green plants are classified as :

 
 
 
 

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

 
 
 
 

457. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

459. Who discovered cyanophages?

 
 
 
 

460. Synzoospore is produced in:

 
 
 
 

461. Majority of lichens are :

 
 
 
 

462. Centric discoid form of diatom is:

 
 
 
 

463. What are plasmids?

 
 
 
 

464. Vascular tissue is found in :

 
 
 
 

465. Viroids have:

 
 
 
 

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

 
 
 
 

467. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

470. The smallest bacterium is:

 
 
 
 

471. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

477. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

479. Maximum diversity of life forms occurs in :

 
 
 
 

480. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

482. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

487. The central part of Funaria axis is :

 
 
 
 

488. A gill of Agaricus:

 
 
 
 

489. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

491. The lambda phase is a:

 
 
 
 

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

 
 
 
 

493. Mycoplasma is different from bacteria due to:

 
 
 
 

494. Climbers are found in genus:

 
 
 
 

495. Enteric bacteria are those bacteria that live:

 
 
 
 

496. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

498. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

501. John Hutchinson divided dicots into two divisions:

 
 
 
 

502. What is absent in Deuteromycetes?

 
 
 
 

503. Lichens reproduce by :

 
 
 
 

504. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

506. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

510. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

512. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

516. Winged seeds are found in :

 
 
 
 

517. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

519. Which is a fungicide?

 
 
 
 

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

 
 
 
 

521. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

525. Fruits are not found in:

 
 
 
 

526. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

528. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

531. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

533. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. The largest alga is:

 
 
 
 

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

 
 
 
 

538. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

541. Which organisms are the oldest life forms?

 
 
 
 

542. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

545. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

547. White rust of crucifers is caused by:

 
 
 
 

548. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

549. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

552. Most of the algae are :

 
 
 
 

553. Bacteriophage consists of:

 
 
 
 

554. The prothallus of fern is:

 
 
 
 

555. The first to isolate a plant virus was:

 
 
 
 

556. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

558. Triple antigen injection or vaccine are for:

 
 
 
 

559. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

561. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

563. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

565. Total parasites belong to:

 
 
 
 

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

 
 
 
 

567. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

568. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

570. The gametophyte produced by apospory is :

 
 
 
 

571. Protozoans are considered animals because these are:

 
 
 
 

572. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

573. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

575. Which is the correct statement about Selaginella?

 
 
 
 

576. Special feature of pollen grains of Pinus is :

 
 
 
 

577. The Rhizopus gametes are formed in:

 
 
 
 

578. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

580. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

582. Ovules are not found enclosed in ovary of:

 
 
 
 

583. 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:

 
 
 
 

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

 
 
 
 

585. The megasporangium of Selaginella is:

 
 
 
 

586. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

588. Reproduction in Rhizopus is:

 
 
 
 

589. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

591. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

593. Vascular cryptogam is the term used for :

 
 
 
 

594. Liverworts are included in :

 
 
 
 

595. Early blight of potato is caused by:

 
 
 
 

596. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

598. 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:

 
 
 
 

599. Reserve food in Euglena is:

 
 
 
 

600. Facultative parasite is:

 
 
 
 

601. Pollination in Pinus is :

 
 
 
 

602. Fern plants are:

 
 
 
 

603. Linnaeus is credited with introducing:

 
 
 
 

604. E coli is a:

 
 
 
 

605. Pinus is:

 
 
 
 

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

 
 
 
 

607. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

611. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

615. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

617. The ascus of yeast contains:

 
 
 
 

618. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

621. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

623. Rice, pea, potato are :

 
 
 
 

624. Botulism is a:

 
 
 
 

625. Most primitive embryophytes are placed in:

 
 
 
 

626. Ovules are not found enclosed in ovary in :

 
 
 
 

627. The orders generally have the uniform endings:

 
 
 
 

628. Agar-agar is obtained from:

 
 
 
 

629. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

631. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

633. Spores of which plants have chloroplast:

 
 
 
 

634. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

636. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

638. LSD is:

 
 
 
 

639. Pteridophytes are also known as :

 
 
 
 

640. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. Clostridium can:

 
 
 
 

645. Bacteria are found everywhere, except:

 
 
 
 

646. Oswald Tippo’s classification was based on :

 
 
 
 

647. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

649. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

651. Spermatophyta are characterized by producing:

 
 
 
 

652. First animal pathogenic virus was discovered by:

 
 
 
 

653. What is streptomycin?

 
 
 
 

654. Which of the following is a heterosporous pteridophyte?

 
 
 
 

655. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

657. Bacteria were first discovered by:

 
 
 
 

658. Late blight of potato is caused by:

 
 
 
 

659. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

663. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

665. Fertility of the soil is increased by:

 
 
 
 

666. Pythium debaryanum is the causative agent of:

 
 
 
 

667. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

670. Cycas is :

 
 
 
 

671. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

673. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

676. In Pteris, the roots are:

 
 
 
 

677. The megaspore of Selaginella on germination produces:

 
 
 
 

678. Cleavage polyembryony is found in :

 
 
 
 

679. 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?

 
 
 
 

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

 
 
 
 

681. Sexual reproduction in Rhizopus is by:

 
 
 
 

682. Chief constituents of bordeaux mixture are :

 
 
 
 

683. The fungi are usually:

 
 
 
 

684. Heterospory and ligulate leaves are a feature of:

 
 
 
 

685. Which is a redwood tree?

 
 
 
 

686. Lichens form the first community in

 
 
 
 

687. Multicellular and jacketed sex organs are found in :

 
 
 
 

688. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

692. Water bloom is generally caused by :

 
 
 
 

693. Sporophyte of fern is:

 
 
 
 

694. The order generally ends with:

 
 
 
 

695. Metulae are found in:

 
 
 
 

696. Mycoplasma are sensitive to:

 
 
 
 

697. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

699. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

702. Photosynthetic bacteria have:

 
 
 
 

703. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

706. What is the role of nitrifying bacteria?

 
 
 
 

707. Which condition is found in Cycas?

 
 
 
 

708. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

710. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

712. 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:

 
 
 
 

713. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

715. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

721.

722. Which of the following are included in Tracheophyta?

 
 
 
 

723. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

728. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

731. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

736. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

739. Late blight of potato is caused by :

 
 
 
 

740. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

741. Discovery of penicillin was based on:

 
 
 
 

742. Desired type of Cycas can be grown by:

 
 
 
 

743. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

745. Ovary is absent in:

 
 
 
 

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

 
 
 
 

747. Which of the following applies to Selaginella?

 
 
 
 

748. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. Which of the following is sago palm?

 
 
 
 

753. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

756. Which is the nuclear material in bacteria?

 
 
 
 

757. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

759. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

762. Number of capsomeres forming capsid of TMV is:

 
 
 
 

763. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

766. Bacteria which are spherical are called:

 
 
 
 

767. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

769. Aflatoxin is produced as a product in :

 
 
 
 

770. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

771. The root nodules of leguminous plants contain:

 
 
 
 

772. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

774. Most of the lichens are composed of :

 
 
 
 

775. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

777. Yeast grows more rapidly in:

 
 
 
 

778. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

781. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

783. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

785. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

787. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

790. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

792. An Hfr bacterium is one that contains:

 
 
 
 

793. Water-borne bacterial diseases are:

 
 
 
 

794. How is moss different from fern?

 
 
 
 

795. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

797. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

799. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

803. Aflatoxin is produced by:

 
 
 
 

804. Bacteria differ from viruses in being sensitive to:

 
 
 
 

805. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

811.

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

 
 
 
 

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

 
 
 
 

814. To which country Antony van Leeuwenhoek belong?

 
 
 
 

815. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

817. Oswald Tippo’s classification is:

 
 
 
 

818. Ectocarpus produces:

 
 
 
 

819. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

822. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

826. Embryo formation is not known in :

 
 
 
 

827. Embryophyta includes :

 
 
 
 

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

 
 
 
 

829. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

831. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

836. The zoospores of Ulothrix are :

 
 
 
 

837. Bacteria growing on synthetic medium are called:

 
 
 
 

838. In Gymnosperms endosperm is a:

 
 
 
 

839. Meiosis in Ulothrix takes place:

 
 
 
 

840. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. Viruses have:

 
 
 
 

844. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

846. The fungi are mostly:

 
 
 
 

847. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

849. The middle sterile part of capsule is called:

 
 
 
 

850. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

853. In moss, calyptra is formed from:

 
 
 
 

854. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

857. Protists which are diploid reproduce sexually by:

 
 
 
 

858. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

862. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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