Quiz_Random

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

 
 
 
 

2. Fern plants are:

 
 
 
 

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

 
 
 
 

4. Sexual reproduction of lichen is due to :

 
 
 
 

5. Who named prion?

 
 
 
 

6. 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:

 
 
 
 

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

 
 
 
 

8. Spores of which plants have chloroplast:

 
 
 
 

9. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

14. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

19. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

21. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

23. Isomorphic type alternation of generation is found in:

 
 
 
 

24. Anoxygenic photosynthesis occurs in:

 
 
 
 

25. Sleeping sickness disease in man is caused by:

 
 
 
 

26. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Photosynthetic protists belong to:

 
 
 
 

30. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. The sporangiophores in Rhizopus are:

 
 
 
 

35. Fruiting body of lichens is :

 
 
 
 

36. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

38. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Pasteurization of milk involves heating for:

 
 
 
 

45. Siphonogamy is found in:

 
 
 
 

46. The tree fern is:

 
 
 
 

47. Which is a fungicide?

 
 
 
 

48. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

50. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. The group algae possesses representatives belonging to kingdom:

 
 
 
 

58. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

59. Embryophyta includes:

 
 
 
 

60. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

62. Cyanophage is a virus that attacks:

 
 
 
 

63. Smut of maize is caused by :

 
 
 
 

64. The stele of Dryopteris is a:

 
 
 
 

65. Who discovered streptomycin?

 
 
 
 

66. The source of litmus is :

 
 
 
 

67. Heterocysts are found in :

 
 
 
 

68. Cycas is :

 
 
 
 

69. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

71. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

76. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. The fern plant is:

 
 
 
 

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

 
 
 
 

89. Winged seeds are found in :

 
 
 
 

90. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

92. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

94. In tracheophyta:

 
 
 
 

95. Funaria can be differentiated from Cycas :

 
 
 
 

96. Cap cells are found in the filament of:

 
 
 
 

97. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

99. The plants of Funaria grow :

 
 
 
 

100. The megasporangium of Selaginella is:

 
 
 
 

101. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

104. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

106. The prothallus of fern represents the plant:

 
 
 
 

107. Bacteria are placed under:

 
 
 
 

108. 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:

 
 
 
 

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

 
 
 
 

110. Water bloom is generally caused by :

 
 
 
 

111. The term stele was given by:

 
 
 
 

112. Vascular cryptogam is the term used for :

 
 
 
 

113. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

115. Downy mildew disease is caused by :

 
 
 
 

116. Plasmids are:

 
 
 
 

117. 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:

 
 
 
 

118. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

120. First animal pathogenic virus was discovered by:

 
 
 
 

121. Pollination in Cycas takes place by :

 
 
 
 

122. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

124. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

129. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

131. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

133. Which one of the following statement is wrong?

 
 
 
 

134. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

136. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

140. Pollination in Pinus is :

 
 
 
 

141. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

143. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

146. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. Vegetative reproduction in Cycas is by means of :

 
 
 
 

150. Clostridium can:

 
 
 
 

151. In Funaria, calyptra is derived from :

 
 
 
 

152. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

154. 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?

 
 
 
 

155. Which of the following statements is not correct?

 
 
 
 

156. In Pteris, the archegonia are present:

 
 
 
 

157. Which of the following is true for Selaginella?

 
 
 
 

158. What is streptomycin?

 
 
 
 

159. Which among the following is a shrub?

 
 
 
 

160. Bacteria were first discovered by:

 
 
 
 

161. Water-net is the name of:

 
 
 
 

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

 
 
 
 

163. Agar-agar is obtained from:

 
 
 
 

164. Rhizoids of Riccia are :

 
 
 
 

165. Linnaeus is credited with introducing:

 
 
 
 

166. Which is a tautonym?

 
 
 
 

167. Triple antigen injection or vaccine are for:

 
 
 
 

168. Bacteria are found everywhere, except:

 
 
 
 

169. Protists which are diploid reproduce sexually by:

 
 
 
 

170. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

177. In a diplontic life cycle:

 
 
 
 

178. LSD is:

 
 
 
 

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

 
 
 
 

180. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

183. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

185. Each chloroplast in Spirogyra bears :

 
 
 
 

186. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

187. The sexual reproductive organs in Rhizopus are:

 
 
 
 

188. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

192. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

194. Ovary is absent in:

 
 
 
 

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

 
 
 
 

196. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

198. Transfusion tissue is present in the leaflet of:

 
 
 
 

199. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

202. Cycas is different from mango in :

 
 
 
 

203. The truncated cone of HIV consists of:

 
 
 
 

204. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

206. The ascus of yeast contains:

 
 
 
 

207. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

209. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. Bentham and Hooker placed gymnosperms:

 
 
 
 

214. Pteridophytes are also known as :

 
 
 
 

215. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

218. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

220. Enteric bacteria are those bacteria that live:

 
 
 
 

221. The chromosomal number in:

 
 
 
 

222. Which lichen is called Reindeer moss?

 
 
 
 

223. Generic name of mango is:

 
 
 
 

224. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

225. Late blight of potato is caused by :

 
 
 
 

226. 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:

 
 
 
 

227. The lambda phase is a:

 
 
 
 

228. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

229. The archegonia in Selaginella develop on:

 
 
 
 

230. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

237. Pinus is:

 
 
 
 

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

 
 
 
 

239. 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?

 
 
 
 

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

 
 
 
 

241. Ginkgo biloba is a:

 
 
 
 

242. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

244. The fungi are mostly:

 
 
 
 

245. Sporophyte of fern is:

 
 
 
 

246. Cocci types of bacteria are:

 
 
 
 

247. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

249. Roots are absent in :

 
 
 
 

250. Which is a gametophytic tissue?

 
 
 
 

251. The Rhizopus is:

 
 
 
 

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

 
 
 
 

253. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. Oswald Tippo’s classification is:

 
 
 
 

257. Rice, pea, potato are :

 
 
 
 

258. Most resistant spore in bacteria is:

 
 
 
 

259. Ovules are not found enclosed in ovary in :

 
 
 
 

260. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

264. Reproduction in Rhizopus is:

 
 
 
 

265. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

269. Bacteria differ from viruses in being sensitive to:

 
 
 
 

270. In dinoflagellates, the two flagella are:

 
 
 
 

271. Fern prothallus produces:

 
 
 
 

272. Azolla growing in paddy fields helps in:

 
 
 
 

273. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

275.

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

 
 
 
 

277. Ovary is absent in :

 
 
 
 

278. In Herpes virus DNA is:

 
 
 
 

279. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

281. What are Cyanobacteria?

 
 
 
 

282. The order generally ends with:

 
 
 
 

283. Infective part of virus was discovered by:

 
 
 
 

284. Nannandria are:

 
 
 
 

285. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

287. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

289. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

293. Red rot of sugarcane is caused by :

 
 
 
 

294. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

297. The most primitive vascular plants is:

 
 
 
 

298. Which part of Riccia bears nurse cells?

 
 
 
 

299. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

301. Photoautotrophic bacteria have:

 
 
 
 

302. The development of sporangium in Selaginella is:

 
 
 
 

303. Why is Cycas called a living fossil?

 
 
 
 

304. Number of capsomeres forming capsid of TMV is:

 
 
 
 

305. Interferon is a:

 
 
 
 

306. Who discovered cyanophages?

 
 
 
 

307. Lichen show :

 
 
 
 

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

 
 
 
 

309. Meiosis in Ulothrix takes place:

 
 
 
 

310. Amoeba is a member of the phylum:

 
 
 
 

311. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

313. Select the wrong statement:

 
 
 
 

314. Enzymes are absent in:

 
 
 
 

315. Viruses are commonly transmitted in plants through:

 
 
 
 

316. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. The leaf of Cycas shows:

 
 
 
 

320. Most of the algae are :

 
 
 
 

321. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

323. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

325. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

328. Photosynthetic bacteria have:

 
 
 
 

329. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

330. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

332. The largest alga is:

 
 
 
 

333. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. Pseudomycelium is found in:

 
 
 
 

337. Most primitive group of vascular plants are:

 
 
 
 

338. The rhizoids of Funaria are :

 
 
 
 

339. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

341. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

343. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

345. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. Viroids have:

 
 
 
 

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

 
 
 
 

350. The flagella of Chlamydomonas are:

 
 
 
 

351. Pollination drop is:

 
 
 
 

352. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

356. Germination of the seed of Pinus is :

 
 
 
 

357. In Gymnocarpeae the fruiting body is :

 
 
 
 

358. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

359. Ectocarpus produces:

 
 
 
 

360. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

363. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

366. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

368. Ovules are not found enclosed in ovary of:

 
 
 
 

369. Most primitive kind of flower is represented by:

 
 
 
 

370. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

372. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

376. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

382. Green plants are classified as :

 
 
 
 

383. Helotism word is used for the symbiosis between :

 
 
 
 

384. Parmelia belongs to :

 
 
 
 

385. Mycoplasma was discovered by:

 
 
 
 

386. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

388. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

391. Psilotum is:

 
 
 
 

392. What is absent in Deuteromycetes?

 
 
 
 

393. Which is absent from the xylem of Cycas?

 
 
 
 

394. Bacteria which are spherical are called:

 
 
 
 

395. Seeds are characteristically found in:

 
 
 
 

396. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

398. The chloroplast in Ulothrix is :

 
 
 
 

399. All algae have:

 
 
 
 

400. Fern prothallus is:

 
 
 
 

401. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

404. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

408. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

411. Bryophyta have a special character from other plants:

 
 
 
 

412. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

414. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

417. Fruits are not found in:

 
 
 
 

418. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

420. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

422. The vascular bundles of Cycas stem are :

 
 
 
 

423. Pythium debaryanum is the causative agent of:

 
 
 
 

424. How is moss different from fern?

 
 
 
 

425. The antherozoids of Funaria are :

 
 
 
 

426. The phloem of vascular system of Cycas is :

 
 
 
 

427. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

429. The first to isolate a plant virus was:

 
 
 
 

430. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. Climbers are found in genus:

 
 
 
 

434. The lichens growing on rocks are called :

 
 
 
 

435. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

437. Some bacteria cannot be killed easily because of:

 
 
 
 

438. Pteridophyta are also called:

 
 
 
 

439. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

441.

442. Chemosynthetic bacteria are:

 
 
 
 

443. The alga, Spirogyra are found in :

 
 
 
 

444. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

445. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

447. Penicillin was discovered by:

 
 
 
 

448. The similarity between cyanobacteria and bacteria:

 
 
 
 

449. Leprosy is caused by:

 
 
 
 

450. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

452. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Which of the following is sago palm?

 
 
 
 

456. Heterotrichous habit means :

 
 
 
 

457. Seeds are characteristically found in :

 
 
 
 

458. Among the algae kelps are :

 
 
 
 

459. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

463. Ulothrix produces :

 
 
 
 

464. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

466. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

468. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

469. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

472. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

474. Which bacteria convert nitrate into nitrogen?

 
 
 
 

475. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478. Sometimes the bacterial cell is enclosed in:

 
 
 
 

479. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

481. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

487. 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?

 
 
 
 

488. Lichens are the indicator of pollution :

 
 
 
 

489. Club moss is the common name of :

 
 
 
 

490. The seedless plants which possess vascular tissues are:

 
 
 
 

491. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

493. Yeast grows more rapidly in:

 
 
 
 

494. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

497. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

501. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

508. Etiology includes the study of :

 
 
 
 

509. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

511. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

513. All archaebacteria lack:

 
 
 
 

514. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. In Cycas the fertilization is:

 
 
 
 

519. Kuru, a human disease is caused by:

 
 
 
 

520. 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:

 
 
 
 

521. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

523. Which of the following statement is correct?

 
 
 
 

524. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

526. The mode of nutrition of bacteria is usually:

 
 
 
 

527. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

530. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

533. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

535. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

539. The gametophyte of fern bears:

 
 
 
 

540. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

542. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

548. In angiosperms double fertilization represents:

 
 
 
 

549. Fertility of the soil is increased by:

 
 
 
 

550. An Hfr bacterium is one that contains:

 
 
 
 

551. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

554. Ergot of rye is caused by:

 
 
 
 

555. Cycas is:

 
 
 
 

556. Asexual reproductive body of Volvox is called:

 
 
 
 

557. Most common type of conjugation in Spirogyra is :

 
 
 
 

558. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

560. Germ theory of disease was proposed by:

 
 
 
 

561. Lichens show :

 
 
 
 

562. Most primitive embryophytes are placed in:

 
 
 
 

563. Acellular slime mold is/are:

 
 
 
 

564. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

571. What are plasmids?

 
 
 
 

572. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

574. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

576. Majority of lichens are :

 
 
 
 

577. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

579. Mostly type of zygospore in Ulothrix is:

 
 
 
 

580. In moss, calyptra is formed from:

 
 
 
 

581. Funaria is :

 
 
 
 

582. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

584. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

586. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

593. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

597. Which of the following are absent in Mycoplasma?

 
 
 
 

598. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

600. Which of the following are included in Tracheophyta?

 
 
 
 

601. Redness of red sea is due to :

 
 
 
 

602. One of the distinctive feature of Spirogyra is :

 
 
 
 

603. Milk is converted to curd by:

 
 
 
 

604. 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:

 
 
 
 

605. Which is the nuclear material in bacteria?

 
 
 
 

606. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. The disease apple scab is caused by:

 
 
 
 

611. Which is not true for Escherichia coli?

 
 
 
 

612. Lichens reproduce by :

 
 
 
 

613. Nitrifying bacteria play an important role by converting:

 
 
 
 

614. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

616. Vascular tissue is found in :

 
 
 
 

617. Metulae are found in:

 
 
 
 

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

 
 
 
 

619. Ethylene oxide is widely used to:

 
 
 
 

620. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

622. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Genetic material of TMV is:

 
 
 
 

628. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

630. The spermatozoids of Cycas are :

 
 
 
 

631. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. Green plants are classified as:

 
 
 
 

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

 
 
 
 

636. Which of the following does not contain chlorophyll?

 
 
 
 

637. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

641. Heterosporous pteridophytes always form:

 
 
 
 

642. Facultative parasite is:

 
 
 
 

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

 
 
 
 

644. In moss, stomata are found:

 
 
 
 

645. Rhizopus and yeast are usually:

 
 
 
 

646. Gymnosperms could also be called as:

 
 
 
 

647. Bivalved siliceous shell or frustule occur in:

 
 
 
 

648. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

654. The photosynthetic protists are:

 
 
 
 

655. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

656. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

657. Cyathia is characterized by:

 
 
 
 

658. How a fern differs from a moss?

 
 
 
 

659. Rhizopus belongs to:

 
 
 
 

660. Cryptogams include :

 
 
 
 

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

 
 
 
 

662. All protozoans possess:

 
 
 
 

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

 
 
 
 

664. Select the wrong statement:

 
 
 
 

665. Which causes red tide?

 
 
 
 

666. Streptomycin is obtained from:

 
 
 
 

667. Lichens are pioneers of vegetation in a :

 
 
 
 

668. Which statement is wrong in regard to bacteria?

 
 
 
 

669. Which of the following applies to Selaginella?

 
 
 
 

670. The teeth of peristome of Funaria are :

 
 
 
 

671. Iodine is obtained from:

 
 
 
 

672. NBG of Lucknow is now named as:

 
 
 
 

673. Mycoplasma contains:

 
 
 
 

674. Which group of algae have an incipient nucleus?

 
 
 
 

675. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

679. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

680.

 

681. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

683. Botulinum toxin effects:

 
 
 
 

684. Leaf spot of groundnut is caused by :

 
 
 
 

685. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

687. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

690. Which of the following lichens is harmful?

 
 
 
 

691. E coli is a:

 
 
 
 

692. Yeast is a source of:

 
 
 
 

693. The fungi used as food are:

 
 
 
 

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

 
 
 
 

695. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

697. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

700. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

702. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

704. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

706. Ergot is obtained from :

 
 
 
 

707. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

709. Desired type of Cycas can be grown by:

 
 
 
 

710. In moss, sporogenous tissue arises from:

 
 
 
 

711. Detailed study of bacteriophage was made by:

 
 
 
 

712. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

714. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

716. Banana bunchy top is caused by :

 
 
 
 

717. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

720. Heterospory and ligulate leaves are a feature of:

 
 
 
 

721. The mycelium of Rhizopus is:

 
 
 
 

722. Common phycobiont in a lichen is :

 
 
 
 

723. Mycoplasma are:

 
 
 
 

724. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

726. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

728. The leaves of Funaria are :

 
 
 
 

729. Heterospory is the production of:

 
 
 
 

730. Male gametophyte of Selaginella is found:

 
 
 
 

731. Lichens reproduce by :

 
 
 
 

732. Lichens form the first community in

 
 
 
 

733. Placenta in fern is:

 
 
 
 

734. The coralloid roots are :

 
 
 
 

735. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

736. The disease symptom necrosis refers to :

 
 
 
 

737. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

740. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

741. Early blight of potato is caused by:

 
 
 
 

742. Standard size of a herbarium sheet is:

 
 
 
 

743. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

747. Gram stain is used to:

 
 
 
 

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

 
 
 
 

749. Typhoid in man is caused by:

 
 
 
 

750. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

753. The zoospores of Ulothrix are :

 
 
 
 

754. Chemosynthetic bacteria are:

 
 
 
 

755. Reproduction in Cycas takes place by :

 
 
 
 

756. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

758. Cycas revoluta is widely grown as :

 
 
 
 

759. John Hutchinson divided dicots into two divisions:

 
 
 
 

760. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

766. Bacteriophage consists of:

 
 
 
 

767. Mixed cropping helps :

 
 
 
 

768. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. Little leaf disease of Brinjal is caused by:

 
 
 
 

772. Which one of the following is a monocot?

 
 
 
 

773. Economic importance of bacteria lies in their being:

 
 
 
 

774. The chloroplast of Chlamydomonas are:

 
 
 
 

775. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

777. The ferns are usually found:

 
 
 
 

778. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

780. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

782. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

784. Viruses have:

 
 
 
 

785. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

787. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

789. The leaves of Funaria are :

 
 
 
 

790. Cleavage polyembryony is found in :

 
 
 
 

791. In Cycas microsporangia are borne on:

 
 
 
 

792. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

795. Reserve food in Euglena is:

 
 
 
 

796. In Cycas:

 
 
 
 

797. Which is a redwood tree?

 
 
 
 

798. In binomial system most of the words are:

 
 
 
 

799. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

800. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

802. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. What is a vector?

 
 
 
 

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

 
 
 
 

809. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

811. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

814. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

816. Small epidermal swellings due to infection are called :

 
 
 
 

817. Spirogyra represents the :

 
 
 
 

818. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

822. Soil fertility is lost by the activities of:

 
 
 
 

823. The role of meiosis is for:

 
 
 
 

824. Red rot of sugarcane is caused by :

 
 
 
 

825. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

827. 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:

 
 
 
 

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

 
 
 
 

829. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

831. To which class Riccia belongs :

 
 
 
 

832. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

834. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

836. An alga which is rich in proteins:

 
 
 
 

837. Saccharomyces is used in:

 
 
 
 

838. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

841. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

844. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

846. Diphtheria is caused by:

 
 
 
 

847. Virion refers to:

 
 
 
 

848. Lichens are ecologically important because :

 
 
 
 

849. Broad spectrum antibiotic is, which:

 
 
 
 

850. The gametophyte of moss has distinct phases :

 
 
 
 

851. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

852.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

856. Botulism is a:

 
 
 
 

857. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

861. Select the correct statement: (NEET 2016)

 
 
 
 

862. Cycas plant in appearance resembles :

 
 
 
 

863. Bacteriophages have been used as:

 
 
 
 

864. The Rhizopus gametes are formed in: