Quiz_Random

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

 
 
 
 

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

 
 
 
 

3. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

5. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

7. The gametophyte of moss has distinct phases :

 
 
 
 

8. Saccharomyces is used in:

 
 
 
 

9. 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?

 
 
 
 

10. The gametophyte of fern bears:

 
 
 
 

11. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Rhizophore of Selaginella is:

 
 
 
 

18. Psilotum is:

 
 
 
 

19. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

21. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

23. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

25. Fern prothallus produces:

 
 
 
 

26. Select the wrong statement:

 
 
 
 

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

 
 
 
 

28. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

34. The middle sterile part of capsule is called:

 
 
 
 

35. The two conjugating gametangia of Rhizopus are:

 
 
 
 

36. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. Majority of lichens are :

 
 
 
 

40. The photosynthetic protists are:

 
 
 
 

41. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. In moss, sporophyte is formed on:

 
 
 
 

46. Lichens show :

 
 
 
 

47. Bacteria are considered to be plants because they:

 
 
 
 

48. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

50. The alga, Spirogyra are found in :

 
 
 
 

51. Most primitive kind of flower is represented by:

 
 
 
 

52. Ergot of rye is caused by:

 
 
 
 

53. The similarity between cyanobacteria and bacteria:

 
 
 
 

54.

55. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

60. Heterotrichous habit means :

 
 
 
 

61. The fungi used as food are:

 
 
 
 

62. Ovules are not found enclosed in ovary in :

 
 
 
 

63. Milk is converted to curd by:

 
 
 
 

64. In a bacteriophage, DNA is present in:

 
 
 
 

65. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Most primitive embryophytes are placed in :

 
 
 
 

75. Absorptive nutrition is:

 
 
 
 

76. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

78. Late blight of potato is caused by:

 
 
 
 

79. Which of the following is a parasitic algae?

 
 
 
 

80. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

82. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. Helotism word is used for the symbiosis between :

 
 
 
 

87. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

89. Aflatoxin is produced as a product in :

 
 
 
 

90. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

91. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

96. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

98. Circular DNA is seen in:

 
 
 
 

99. In tracheophyta:

 
 
 
 

100. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

102. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

109. E coli is a:

 
 
 
 

110. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

113. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

115. To which class Riccia belongs :

 
 
 
 

116. Smallpox is caused by:

 
 
 
 

117. The coralloid roots are :

 
 
 
 

118. Plasmids are:

 
 
 
 

119. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

123. In moss, peristomial teeth are:

 
 
 
 

124. Fruits are not found in:

 
 
 
 

125. The vascular bundles of Cycas stem are :

 
 
 
 

126. Proembryo in Pinus is :

 
 
 
 

127. The central part of Funaria axis is :

 
 
 
 

128. Wine turns sour because of:

 
 
 
 

129. Sleeping sickness disease in man is caused by:

 
 
 
 

130. Saccharomyces ludwigii ascus produces:

 
 
 
 

131. The orders generally have the uniform endings:

 
 
 
 

132. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

134. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

136. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

138. Spores of which plants have chloroplast:

 
 
 
 

139. Streptomycin is obtained from:

 
 
 
 

140. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

141. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

144. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

146. Viruses are considered to be:

 
 
 
 

147. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

151. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

153. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

155. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

161. Halophiles are the bacteria that require for growth:

 
 
 
 

162. Asexual reproductive body of Volvox is called:

 
 
 
 

163. Germ theory of disease was proposed by:

 
 
 
 

164. Broad spectrum antibiotic is, which:

 
 
 
 

165. The archegonia of Selaginella are differentiated by:

 
 
 
 

166. Leprosy is caused by:

 
 
 
 

167. Sporophyte of Funaria is :

 
 
 
 

168. Facultative parasite is:

 
 
 
 

169. 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?

 
 
 
 

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

 
 
 
 

171. Who discovered cyanophages?

 
 
 
 

172. The truncated cone of HIV consists of:

 
 
 
 

173. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

175. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

177. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

180. Yeast is a source of:

 
 
 
 

181. Lichens are indicators of :

 
 
 
 

182. Botulism is a:

 
 
 
 

183. Pollination drop is:

 
 
 
 

184. Tautonyms are illegitimate in:

 
 
 
 

185. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

191. Mycoplasma is different from bacteria due to:

 
 
 
 

192.

 

193. Which bacteria convert nitrate into nitrogen?

 
 
 
 

194. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

196. Most appropriate word for protozoans is:

 
 
 
 

197. Etiology includes the study of :

 
 
 
 

198. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

200. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

202. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

204. Male gametophyte of Selaginella is found:

 
 
 
 

205. Most primitive embryophytes are placed in:

 
 
 
 

206. Which one of the following statement is wrong?

 
 
 
 

207. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

209. Pollination in Cycas takes place by :

 
 
 
 

210. What is a vector?

 
 
 
 

211. Pinus gerardiana is :

 
 
 
 

212. Mycoplasmas are not viruses in nature because:

 
 
 
 

213. The Rhizopus is:

 
 
 
 

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

 
 
 
 

215. Virion refers to:

 
 
 
 

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

 
 
 
 

217. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

219. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

221. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

223. Sometimes the bacterial cell is enclosed in:

 
 
 
 

224. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

227. Heterospory and ligulate leaves are a feature of:

 
 
 
 

228. Sporophyte of fern is:

 
 
 
 

229. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

231. First animal pathogenic virus was discovered by:

 
 
 
 

232. Total parasites belong to:

 
 
 
 

233. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

235. . Tapetum develops in:

 
 
 
 

236. Spermatophyta are characterized by producing:

 
 
 
 

237. Photosynthetic bacteria have:

 
 
 
 

238. Cycas is:

 
 
 
 

239. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

241. Which is the correct statement about Selaginella?

 
 
 
 

242. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

244. Select the correct statement: (NEET 2016)

 
 
 
 

245. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. Spirogyra differs from moss protonema in having :

 
 
 
 

249. Choose the correct statement about Spirogyra:

 
 
 
 

250. How is moss different from fern?

 
 
 
 

251. Virus and bacteriophage are made-up of:

 
 
 
 

252. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. Water-net is the name of:

 
 
 
 

256. Which of the following is sago palm?

 
 
 
 

257. The most primitive vascular plants is:

 
 
 
 

258. Downy mildew disease is caused by :

 
 
 
 

259. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

261. Red rot of sugarcane is caused by :

 
 
 
 

262. The ferns are usually found:

 
 
 
 

263. Mycoplasma are:

 
 
 
 

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

 
 
 
 

265. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

267. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

269. Bacteriophages have been used as:

 
 
 
 

270. Which lichen is called Reindeer moss?

 
 
 
 

271. Embryophyta includes:

 
 
 
 

272. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

274. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

276. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

278. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

280. The fungi are mostly:

 
 
 
 

281. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

282. Which is a gametophytic tissue?

 
 
 
 

283. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

285. Chemosynthetic bacteria are:

 
 
 
 

286. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

289. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

291. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

293. In Funaria, calyptra is derived from :

 
 
 
 

294. Isomorphic type alternation of generation is found in:

 
 
 
 

295. 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?

 
 
 
 

296. NBG of Lucknow is now named as:

 
 
 
 

297. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

299. Iodine is obtained from :

 
 
 
 

300. The nucleus of bacteria is:

 
 
 
 

301. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

305. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

308. Protozoans are considered animals because these are:

 
 
 
 

309. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

312. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. The leaves of Funaria are :

 
 
 
 

316. The role of meiosis is for:

 
 
 
 

317. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

322. In Cycas the fertilization is:

 
 
 
 

323. The antherozoids of Funaria are :

 
 
 
 

324. Cell walls of Gram-positive bacteria contain:

 
 
 
 

325. Infective part of virus was discovered by:

 
 
 
 

326. Bryophyta have a special character from other plants:

 
 
 
 

327. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

330. Nitrifying bacteria play an important role by converting:

 
 
 
 

331. In Cycas:

 
 
 
 

332. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

334. Fern phloem lacks:

 
 
 
 

335. In Pteris, the roots are:

 
 
 
 

336. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

338. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

340. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

342. The mycelium of Rhizopus is:

 
 
 
 

343. The Rhizopus gametes are formed in:

 
 
 
 

344. The chloroplast of Chlamydomonas are:

 
 
 
 

345. Agar-agar is obtained from:

 
 
 
 

346. In Herpes virus DNA is:

 
 
 
 

347. Which is the nuclear material in bacteria?

 
 
 
 

348. Fruiting body of lichens is :

 
 
 
 

349. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

350. Male gametes in Dryopteris are:

 
 
 
 

351. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

354. One of the distinctive feature of Spirogyra is :

 
 
 
 

355. In moss, calyptra is formed from:

 
 
 
 

356. Mycoplasma contains:

 
 
 
 

357. The development of sporangium in Selaginella is:

 
 
 
 

358. A gill of Agaricus:

 
 
 
 

359. Fern plants are:

 
 
 
 

360. Which of the following is true for viruses?

 
 
 
 

361. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

366. In Gymnocarpeae the fruiting body is :

 
 
 
 

367. Which of the following statements is not correct?

 
 
 
 

368. Amoeba is a member of the phylum:

 
 
 
 

369. Fern prothallus is:

 
 
 
 

370. Early blight of potato is caused by:

 
 
 
 

371. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

374. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

377. Liverworts are included in :

 
 
 
 

378. In Funaria :

 
 
 
 

379. Which of the following have algal zone?

 
 
 
 

380. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

382. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

386. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

388. Lichens form the first community in

 
 
 
 

389. Which of the following is true for Selaginella?

 
 
 
 

390. Seeds are characteristically found in :

 
 
 
 

391. Rhizopus belongs to:

 
 
 
 

392. Siphonogamy is found in:

 
 
 
 

393. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

395. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

396. Heterospory is the production of:

 
 
 
 

397. Which organisms are the oldest life forms?

 
 
 
 

398. Clostridium can:

 
 
 
 

399. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

403. Yeast grows more rapidly in:

 
 
 
 

404. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

406. Meristele of fern is:

 
 
 
 

407. Endemic plants are characterised by their:

 
 
 
 

408. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

410. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

416. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

418. Which of the following is a heterosporous pteridophyte?

 
 
 
 

419. Disease resistant plant varieties can be produced by :

 
 
 
 

420.

421. True sexuality is not found in:

 
 
 
 

422. Bacteria which are spherical are called:

 
 
 
 

423. The megasporangium of Selaginella is:

 
 
 
 

424. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

429. Bentham and Hooker placed gymnosperms:

 
 
 
 

430. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. Genetic material of TMV is:

 
 
 
 

434. Detailed study of bacteriophage was made by:

 
 
 
 

435. In a diplontic life cycle:

 
 
 
 

436. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

437. Acellular slime mold is/are:

 
 
 
 

438. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

440. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

443. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

445. Vegetative reproduction in Cycas is by means of :

 
 
 
 

446. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

448. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

452. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

456. The fern plant is:

 
 
 
 

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

 
 
 
 

458. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

460. Meiosis in Ulothrix takes place:

 
 
 
 

461. Late blight of potato is caused by :

 
 
 
 

462. Pythium debaryanum is the causative agent of:

 
 
 
 

463. 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:

 
 
 
 

464. Roots are absent in :

 
 
 
 

465. The chromosomal number in:

 
 
 
 

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

 
 
 
 

467. Lichens reproduce by :

 
 
 
 

468. Azolla growing in paddy fields helps in:

 
 
 
 

469. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

472. The largest alga is:

 
 
 
 

473. The lambda phase is a:

 
 
 
 

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

 
 
 
 

475. Economic importance of bacteria lies in their being:

 
 
 
 

476. Enzymes are absent in:

 
 
 
 

477. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

479. The spur of Pinus roxburghii has :

 
 
 
 

480. The sporangiophores in Rhizopus are:

 
 
 
 

481. All archaebacteria lack:

 
 
 
 

482. The smallest unit of classification is:

 
 
 
 

483. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

487. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

491. The term stele was given by:

 
 
 
 

492. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

495. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

497. The largest known bacterium is:

 
 
 
 

498. Which is not true for Escherichia coli?

 
 
 
 

499. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

504. Pasteurized milk is:

 
 
 
 

505. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

507. Acetobacter is useful in:

 
 
 
 

508. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

510. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

512. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. LSD is:

 
 
 
 

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

 
 
 
 

517. Lichens are ecologically important because :

 
 
 
 

518. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. Winged seeds are found in :

 
 
 
 

522. The mode of nutrition of bacteria is usually:

 
 
 
 

523. Cycas is :

 
 
 
 

524. The roots of Cycas are :

 
 
 
 

525. Banana bunchy top is caused by :

 
 
 
 

526. The sporangia of Selaginella are attached:

 
 
 
 

527. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

530. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

538. Lichen show :

 
 
 
 

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

 
 
 
 

540. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

542. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

545. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

548. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

550. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

552. Heterosporous pteridophytes always form:

 
 
 
 

553. Lichens reproduce by :

 
 
 
 

554. Generic name of mango is:

 
 
 
 

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

 
 
 
 

556. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

559. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

561. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

563. Mycoplasma are sensitive to:

 
 
 
 

564. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

569. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

571. Funaria is :

 
 
 
 

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

 
 
 
 

573. The flagella of Chlamydomonas are:

 
 
 
 

574. Oswald Tippo’s classification was based on :

 
 
 
 

575. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

577. Mycoplasma was discovered by:

 
 
 
 

578. 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:

 
 
 
 

579. Pythium debaryanum is the causative agent of:

 
 
 
 

580. The archegonia in Selaginella develop on:

 
 
 
 

581. Enteric bacteria are those bacteria that live:

 
 
 
 

582. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

585. Rhizoids of Riccia are :

 
 
 
 

586. Citrus canker is caused by:

 
 
 
 

587. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

589. Smut of maize is caused by :

 
 
 
 

590. Bacteria are found everywhere, except:

 
 
 
 

591. The chloroplast in Ulothrix is :

 
 
 
 

592. What is absent in Deuteromycetes?

 
 
 
 

593. Which is a fungicide?

 
 
 
 

594. The chief characteristic of bryophyta is that :

 
 
 
 

595. Reserve food in Euglena is:

 
 
 
 

596. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

598. Penicillin was discovered by:

 
 
 
 

599. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

601. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

603. Usually, bacteria reproduce by:

 
 
 
 

604. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

606. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. Fruits are not found in :

 
 
 
 

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

 
 
 
 

612. Sexual reproduction in Rhizopus is by:

 
 
 
 

613. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

615. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

620. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

624. The tallest moss in the world is :

 
 
 
 

625. Which fixes atmospheric nitrogen?

 
 
 
 

626. Black rust of wheat is caused by:

 
 
 
 

627.

628. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

632. Viruses have:

 
 
 
 

633. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

635. Funaria are commonly found :

 
 
 
 

636. 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?

 
 
 
 

637. The root nodules of leguminous plants contain:

 
 
 
 

638. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

640. What are plasmids?

 
 
 
 

641. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

643. Nannandria are:

 
 
 
 

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

 
 
 
 

645. Iodine is obtained from:

 
 
 
 

646. Which causes red tide?

 
 
 
 

647. Rhizopus and yeast are usually:

 
 
 
 

648. Cryptogams include :

 
 
 
 

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

 
 
 
 

650. What are Cyanobacteria?

 
 
 
 

651. Ovary is absent in:

 
 
 
 

652. Which of the following applies to Selaginella?

 
 
 
 

653. Which group of algae have an incipient nucleus?

 
 
 
 

654. Viroids have:

 
 
 
 

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

 
 
 
 

656. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

658. Penicillin is obtained from:

 
 
 
 

659. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

661. The order generally ends with:

 
 
 
 

662. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

664. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

667. Bivalved siliceous shell or frustule occur in:

 
 
 
 

668. In Pteris, the archegonia are present:

 
 
 
 

669. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

671. Kuru, a human disease is caused by:

 
 
 
 

672. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

674. Some bacteria cannot be killed easily because of:

 
 
 
 

675. Selaginella differs from Moss in having:

 
 
 
 

676. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

677. Bryophyta have been placed in cryptogams because:

 
 
 
 

678. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

680. Placenta in fern is:

 
 
 
 

681. The antibiotic is obtained from:

 
 
 
 

682. Ergot is obtained from :

 
 
 
 

683. Ovules are not found enclosed in ovary of:

 
 
 
 

684. Where does meiosis occur in yeast?

 
 
 
 

685. Climbers are found in genus:

 
 
 
 

686. To which country Antony van Leeuwenhoek belong?

 
 
 
 

687. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

689. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

690. Little leaf disease of Brinjal is caused by:

 
 
 
 

691. The young leaves of Cycas have :

 
 
 
 

692. Which is a tautonym?

 
 
 
 

693. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

694. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

695. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

697. Fairy ring is the name given to:

 
 
 
 

698. Lichens are the indicator of pollution :

 
 
 
 

699. Who named prion?

 
 
 
 

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

 
 
 
 

701. Metulae are found in:

 
 
 
 

702. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

708. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

713. 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:

 
 
 
 

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

 
 
 
 

715. Lichens are pioneers of vegetation in a :

 
 
 
 

716. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

718. 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:

 
 
 
 

719. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

724. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

726. Yeast belongs to class:

 
 
 
 

727. The tree fern is:

 
 
 
 

728. Mucilaginous canals in Cycas are found in :

 
 
 
 

729. Vascular tissue is found in :

 
 
 
 

730. Transfusion tissue is present in the leaflet of:

 
 
 
 

731. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

735. Club moss and Peat moss belong to:

 
 
 
 

736. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

742. The fungi that grow on wood are called:

 
 
 
 

743. Which is a redwood tree?

 
 
 
 

744. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

747. The fungi are usually:

 
 
 
 

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

 
 
 
 

749. The sporophyte of Riccia is :

 
 
 
 

750. In moss, reduction division occurs in :

 
 
 
 

751. Small epidermal swellings due to infection are called :

 
 
 
 

752. Pteridophytes are also known as :

 
 
 
 

753. Funaria is :

 
 
 
 

754. Cycas plant in appearance resembles :

 
 
 
 

755. In Gymnosperms endosperm is a:

 
 
 
 

756. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

758. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

760. Centric discoid form of diatom is:

 
 
 
 

761. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

765. The sporophyte of Riccia is represented by :

 
 
 
 

766. What is mycorrhiza?

 
 
 
 

767. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

769. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

774. What is special feature of fern archegonia?

 
 
 
 

775. Maximum diversity of life forms occurs in :

 
 
 
 

776. All protozoans possess:

 
 
 
 

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

 
 
 
 

778. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

781. Ovary is absent in :

 
 
 
 

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

 
 
 
 

783. Photoautotrophic bacteria have:

 
 
 
 

784. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

786. Facultative saprophyte is:

 
 
 
 

787. In binomial system most of the words are:

 
 
 
 

788. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

790. The sexual reproductive organs in Rhizopus are:

 
 
 
 

791. Some biologists have used the term Mycetozoa for:

 
 
 
 

792. Botulinum toxin effects:

 
 
 
 

793. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. Typhoid in man is caused by:

 
 
 
 

808. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

810. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

811. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

813. 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:

 
 
 
 

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

 
 
 
 

815. In Selaginella, the microsporangia are:

 
 
 
 

816. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

818. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

821. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

822. Which of the following does not contain chlorophyll?

 
 
 
 

823. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

827. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

834. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

836. Desired type of Cycas can be grown by:

 
 
 
 

837. In moss, conducting tissue is made up of

 
 
 
 

838. Pseudomycelium is found in:

 
 
 
 

839. Streptomyces falls under:

 
 
 
 

840. Anoxygenic photosynthesis occurs in:

 
 
 
 

841. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

844. Pasteur is famous for his:

 
 
 
 

845. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

848. The most important property of yeast is:

 
 
 
 

849. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

852. What is streptomycin?

 
 
 
 

853. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

855. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

857. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

858. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

861. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

863. Cocci types of bacteria are:

 
 
 
 

864. Interferon is a: