Quiz_Random

1. Protistan algae obtain their food as:

 
 
 
 

2. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

4. Cleavage polyembryony is found in :

 
 
 
 

5. White rust of crucifers is caused by:

 
 
 
 

6. LSD is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

9. Generic name of mango is:

 
 
 
 

10. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

12. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

14. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

19. Who among the following discovered virus?

 
 
 
 

20. Fertility of the soil is increased by:

 
 
 
 

21. Fruiting body of lichens is :

 
 
 
 

22. The most important property of yeast is:

 
 
 
 

23. Which of the following shows heterotrichous habit?

 
 
 
 

24. Halophiles are the bacteria that require for growth:

 
 
 
 

25. Germ theory of disease was proposed by:

 
 
 
 

26. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Heterosporous pteridophytes always form:

 
 
 
 

30. Most of the lichens are composed of :

 
 
 
 

31. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Cyathia is characterized by:

 
 
 
 

36. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. Kuru, a human disease is caused by:

 
 
 
 

40. Ginkgo biloba is a:

 
 
 
 

41. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

42. The coralloid roots are :

 
 
 
 

43. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

45. The fern plant is:

 
 
 
 

46. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

48. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. Genetic material of TMV is:

 
 
 
 

52. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

54. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

56. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

58. Ovary is absent in:

 
 
 
 

59. Cell walls of Gram-positive bacteria contain:

 
 
 
 

60. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

62. Among the algae kelps are :

 
 
 
 

63. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. In moss, reduction division occurs in :

 
 
 
 

67. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

68. Nitrogen-fixing bacteria may be located:

 
 
 
 

69. A gill of Agaricus:

 
 
 
 

70. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

71. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

73. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Lichens are ecologically important because :

 
 
 
 

78. 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?

 
 
 
 

79. Total parasites belong to:

 
 
 
 

80. In tracheophyta:

 
 
 
 

81. Broad spectrum antibiotic is, which:

 
 
 
 

82. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Bacteriophage consists of:

 
 
 
 

86. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

88. The orders generally have the uniform endings:

 
 
 
 

89. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

91. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

97. Spirogyra differs from moss protonema in having :

 
 
 
 

98. 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?

 
 
 
 

99. Saccharomyces is well known for:

 
 
 
 

100. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

103. . Tapetum develops in:

 
 
 
 

104. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

109. In moss, conducting tissue is made up of

 
 
 
 

110. Anoxygenic photosynthesis occurs in:

 
 
 
 

111. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. The disease apple scab is caused by:

 
 
 
 

119. Most primitive kind of flower is represented by:

 
 
 
 

120. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

122. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

124. Which of the following is sago palm?

 
 
 
 

125. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

127. The tallest moss in the world is :

 
 
 
 

128. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

130. What are Cyanobacteria?

 
 
 
 

131. Spores of which plants have chloroplast:

 
 
 
 

132. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

134. Wine turns sour because of:

 
 
 
 

135. The chromosomal number in:

 
 
 
 

136. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

138. Which of the following are included in Tracheophyta?

 
 
 
 

139. Bacteria are found everywhere, except:

 
 
 
 

140. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

142. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

143. Meiosis in Ulothrix takes place:

 
 
 
 

144. Bryophyta have been placed in cryptogams because:

 
 
 
 

145. Roots are absent in :

 
 
 
 

146. The ferns are usually found:

 
 
 
 

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

 
 
 
 

148. Cycas is different from mango in :

 
 
 
 

149. The roots of Cycas are :

 
 
 
 

150. Lichens are the indicator of pollution :

 
 
 
 

151. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

153. In moss, peristomial teeth are:

 
 
 
 

154. Common phycobiont in a lichen is :

 
 
 
 

155. Fern prothallus is:

 
 
 
 

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

 
 
 
 

157. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

159. Climbers are found in genus:

 
 
 
 

160. The nucleus of bacteria is:

 
 
 
 

161. Infective part of virus was discovered by:

 
 
 
 

162. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

164. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

166. Pinus is:

 
 
 
 

167. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

169. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

171. Water-net is the name of:

 
 
 
 

172. Protozoans are considered animals because these are:

 
 
 
 

173. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

175. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

180. Fruits are not found in :

 
 
 
 

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

 
 
 
 

182. The two conjugating gametangia of Rhizopus are:

 
 
 
 

183. True sexuality is not found in:

 
 
 
 

184. Meristele of fern is:

 
 
 
 

185. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

187. The similarity between cyanobacteria and bacteria:

 
 
 
 

188. The truncated cone of HIV consists of:

 
 
 
 

189. Placenta in fern is:

 
 
 
 

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

 
 
 
 

191. The lambda phase is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

194. In angiosperms double fertilization represents:

 
 
 
 

195. Early blight of potato is caused by:

 
 
 
 

196. 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:

 
 
 
 

197. Ovules are not found enclosed in ovary in :

 
 
 
 

198. The first to isolate a plant virus was:

 
 
 
 

199. The chloroplast of Chlamydomonas are:

 
 
 
 

200. The vascular bundles of Cycas stem are :

 
 
 
 

201. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

205. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

207. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

209. The role of meiosis is for:

 
 
 
 

210. The fungi used as food are:

 
 
 
 

211. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

213. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

217. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. The gametophyte of fern is as:

 
 
 
 

221. The sporangiophores in Rhizopus are:

 
 
 
 

222. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

226. The sporangia of Selaginella are attached:

 
 
 
 

227. 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:

 
 
 
 

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

 
 
 
 

229. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

234. The male gametes of Pinus are :

 
 
 
 

235. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

240. In Funaria :

 
 
 
 

241. Antibiotics cure the disease by:

 
 
 
 

242. The photosynthetic protists are:

 
 
 
 

243. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

246. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

248. What are plasmids?

 
 
 
 

249. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

253. Which fixes atmospheric nitrogen?

 
 
 
 

254. Quarantine regulations are concerned with:

 
 
 
 

255. Late blight of potato is caused by:

 
 
 
 

256. Antibiotic has been extracted from :

 
 
 
 

257. Yeast is a source of:

 
 
 
 

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

 
 
 
 

259. Woody climbers are known as :

 
 
 
 

260. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. Water-borne bacterial diseases are:

 
 
 
 

264. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. Botulism is a:

 
 
 
 

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

 
 
 
 

269. Embryo formation is not known in :

 
 
 
 

270. Photosynthetic protists belong to:

 
 
 
 

271. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

276. Some bacteria cannot be killed easily because of:

 
 
 
 

277. Tautonyms are illegitimate in:

 
 
 
 

278. 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?

 
 
 
 

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

 
 
 
 

280. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. Cyanophage is a virus that attacks:

 
 
 
 

284. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

289. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

290. Most common type of conjugation in Spirogyra is :

 
 
 
 

291. Funaria is :

 
 
 
 

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

 
 
 
 

293.

294. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

296. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

298. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

300. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

302. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

304. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

307. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

310. In Pteris, the archegonia are present:

 
 
 
 

311. Psilotum is:

 
 
 
 

312. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. Fruits are not found in:

 
 
 
 

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

 
 
 
 

317. Club moss is the common name of :

 
 
 
 

318. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

320. The leaf of Cycas shows:

 
 
 
 

321. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

323. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

327. The middle sterile part of capsule is called:

 
 
 
 

328. Sporophyte of fern is:

 
 
 
 

329. Reproduction in Cycas takes place by :

 
 
 
 

330. In Cycas the fertilization is:

 
 
 
 

331. The ascus of yeast contains:

 
 
 
 

332. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

339. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

342. How is moss different from fern?

 
 
 
 

343. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

345. 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:

 
 
 
 

346. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

347. Lichens are indicators of :

 
 
 
 

348. Viroids have:

 
 
 
 

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

 
 
 
 

350. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

353. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

355. Most primitive embryophytes are placed in:

 
 
 
 

356. Rhizopus and yeast are usually:

 
 
 
 

357. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

359. Mycoplasma was discovered by:

 
 
 
 

360. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

361. Saccharomyces is used in:

 
 
 
 

362. Red rot of sugarcane is caused by :

 
 
 
 

363. Longest known virus is:

 
 
 
 

364. Etiology includes the study of :

 
 
 
 

365. Winged seeds are found in :

 
 
 
 

366. The sori in Dryopteris are found on:

 
 
 
 

367. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

371. Milk is converted to curd by:

 
 
 
 

372. All protozoans possess:

 
 
 
 

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

 
 
 
 

374. Mixed cropping helps :

 
 
 
 

375. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. Red rot of sugarcane is caused by :

 
 
 
 

379. 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?

 
 
 
 

380. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

384. The spur of Pinus roxburghii has :

 
 
 
 

385. Photoautotrophic bacteria have:

 
 
 
 

386. Each chloroplast in Spirogyra bears :

 
 
 
 

387. Nitrifying bacteria play an important role by converting:

 
 
 
 

388. Cryptogams include :

 
 
 
 

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

 
 
 
 

390. Mycoplasmas are not viruses in nature because:

 
 
 
 

391. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

394. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

398. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

399. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

400. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

402. Agar-agar is obtained from:

 
 
 
 

403. Ulothrix produces :

 
 
 
 

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

 
 
 
 

405. Which is the nuclear material in bacteria?

 
 
 
 

406. In Selaginella, the microsporangia are:

 
 
 
 

407. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

411. The megaspore of Selaginella on germination produces:

 
 
 
 

412. Lichen show :

 
 
 
 

413. Virion refers to:

 
 
 
 

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

 
 
 
 

415. Iodine is obtained from:

 
 
 
 

416. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

417. Lichens form the first community in

 
 
 
 

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

 
 
 
 

419. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

421. 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:

 
 
 
 

422. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

424. An alga which is rich in proteins:

 
 
 
 

425. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

428. Lichens show :

 
 
 
 

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

 
 
 
 

430. All algae have:

 
 
 
 

431. Bacteria were first discovered by:

 
 
 
 

432. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

434. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

436. Fern prothallus produces:

 
 
 
 

437. The central part of Funaria axis is :

 
 
 
 

438. Green plants are classified as:

 
 
 
 

439. The rhizoids of Funaria are :

 
 
 
 

440. The stele of Dryopteris is a:

 
 
 
 

441. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

444. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

446. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. What is the role of nitrifying bacteria?

 
 
 
 

450. Mycoplasma are:

 
 
 
 

451. Who named prion?

 
 
 
 

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

 
 
 
 

453. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

455. Plasmids are:

 
 
 
 

456. Acellular slime mold is/are:

 
 
 
 

457. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

460. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

462. The upper region of moss capsule is :

 
 
 
 

463. Linnaeus is credited with introducing:

 
 
 
 

464. The lichens growing on rocks are called :

 
 
 
 

465. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

467. The Rhizopus gametes are formed in:

 
 
 
 

468. Viruses are considered to be:

 
 
 
 

469. Fern phloem lacks:

 
 
 
 

470. The leafy fern plant represents the:

 
 
 
 

471. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

473. The DNA of E coli is:

 
 
 
 

474. Which of the following does not contain chlorophyll?

 
 
 
 

475. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

476. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

478. To which class Riccia belongs :

 
 
 
 

479. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

481. The largest known bacterium is:

 
 
 
 

482. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

484. Which of the following have a prokaryotic cell?

 
 
 
 

485. The sporangium of fern contains nearly:

 
 
 
 

486. First animal pathogenic virus was discovered by:

 
 
 
 

487. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

489. Coenogamete is found in:

 
 
 
 

490. Heterospory and ligulate leaves are a feature of:

 
 
 
 

491. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

495. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

501. Select the wrong statement:

 
 
 
 

502. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

505. Which part of Riccia bears nurse cells?

 
 
 
 

506. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

508. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

510. Gram stain is used to:

 
 
 
 

511. Bryophyta have a special character from other plants:

 
 
 
 

512. Select the wrong statement:

 
 
 
 

513. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

515. Male gametes in Dryopteris are:

 
 
 
 

516. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. What is streptomycin?

 
 
 
 

522. Chemosynthetic bacteria are:

 
 
 
 

523. Embryophyta includes:

 
 
 
 

524. The mode of nutrition of bacteria is usually:

 
 
 
 

525. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. Which of the following is a monocot?

 
 
 
 

529. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

531. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

538. What is a vector?

 
 
 
 

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

 
 
 
 

540. Funaria is a Bryophyta because :

 
 
 
 

541. In a diplontic life cycle:

 
 
 
 

542. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

547. The order generally ends with:

 
 
 
 

548. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

553. Which statement is wrong in regard to bacteria?

 
 
 
 

554. The mycelium of Rhizopus is:

 
 
 
 

555. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

558. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

560. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

563. Gymnosperms could also be called as:

 
 
 
 

564. Bivalved siliceous shell or frustule occur in:

 
 
 
 

565. Pteridophyta are also called:

 
 
 
 

566. Indusium in Dryopteris is:

 
 
 
 

567. The alga, Spirogyra are found in :

 
 
 
 

568. Mucilaginous canals in Cycas are found in :

 
 
 
 

569. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

571. Penicillin is obtained from:

 
 
 
 

572. Endemic plants are characterised by their:

 
 
 
 

573.

574.

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

 
 
 
 

576. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

578. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

581. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

582. Which is a tautonym?

 
 
 
 

583. Some diseases caused by bacteria are:

 
 
 
 

584. In moss, sporophyte is formed on:

 
 
 
 

585. The sporophyte of Riccia is represented by :

 
 
 
 

586. The Rhizopus is:

 
 
 
 

587. All archaebacteria lack:

 
 
 
 

588. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

591. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

593. Funaria is :

 
 
 
 

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

 
 
 
 

595. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

598. In a bacteriophage, DNA is present in:

 
 
 
 

599. The zygospore in Rhizopus on germination forms:

 
 
 
 

600. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. Which of the following is a heterosporous pteridophyte?

 
 
 
 

604. Which class of Protozoa includes all parasitic forms?

 
 
 
 

605. Embryophyta includes :

 
 
 
 

606. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

607.

 

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

 
 
 
 

609. Circular DNA is seen in:

 
 
 
 

610. Nannandria are:

 
 
 
 

611. Fruits are not found in Cycas because:

 
 
 
 

612. The leaves of Funaria are :

 
 
 
 

613. What is special feature of fern archegonia?

 
 
 
 

614. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

617. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

620. The leaves of Funaria are :

 
 
 
 

621. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

623. Simple polyembryony is found in :

 
 
 
 

624. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

626. One of the distinctive feature of Spirogyra is :

 
 
 
 

627. The fungi that grow on wood are called:

 
 
 
 

628. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

630. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

632. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

634. Reproduction in Rhizopus is:

 
 
 
 

635. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

637. Which causes red tide?

 
 
 
 

638. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

640. Isomorphic type alternation of generation is found in:

 
 
 
 

641. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. Pasteur is famous for his:

 
 
 
 

645. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

650. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

653. Majority of lichens are :

 
 
 
 

654. Disease resistant plant varieties can be produced by :

 
 
 
 

655. Pneumonia is caused by:

 
 
 
 

656. Viruses have:

 
 
 
 

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

 
 
 
 

658. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

662. Which is the correct statement about Selaginella?

 
 
 
 

663. Absorptive nutrition is:

 
 
 
 

664. Metulae are found in:

 
 
 
 

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

 
 
 
 

666. Leaf spot of groundnut is caused by :

 
 
 
 

667. Azolla and Salvinia both are:

 
 
 
 

668. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

670. The gametophyte produced by apospory is :

 
 
 
 

671. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

673. Sporophyte of Funaria is :

 
 
 
 

674. The tree fern is:

 
 
 
 

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

 
 
 
 

676. Spermatophyta are characterized by producing:

 
 
 
 

677. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

679. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

684. Pinus gerardiana is :

 
 
 
 

685. Yeast belongs to class:

 
 
 
 

686. Gametophyte is the main plant body in :

 
 
 
 

687. Which is a redwood tree?

 
 
 
 

688. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

690. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

693. Acetobacter is useful in:

 
 
 
 

694. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

696. Oswald Tippo’s classification was based on :

 
 
 
 

697. Which is absent from the xylem of Cycas?

 
 
 
 

698. Which of the following statements is not correct?

 
 
 
 

699. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

702. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

704. Club moss and Peat moss belong to:

 
 
 
 

705. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

708. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

710. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

713. Oswald Tippo’s classification is:

 
 
 
 

714. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

717. Which is not true for Escherichia coli?

 
 
 
 

718. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

720. Multicellular and jacketed sex organs are found in :

 
 
 
 

721. Botulinum toxin effects:

 
 
 
 

722. Water bloom is generally caused by :

 
 
 
 

723. Which one of the following statement is wrong?

 
 
 
 

724. Methanogens belong to:

 
 
 
 

725. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

727. Which of the following have algal zone?

 
 
 
 

728. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

730. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

732. The development of Selaginella embryo is:

 
 
 
 

733. Cycas is :

 
 
 
 

734. The gametophyte of moss has distinct phases :

 
 
 
 

735. Redness of red sea is due to :

 
 
 
 

736. In Herpes virus DNA is:

 
 
 
 

737. 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:

 
 
 
 

738. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

740. The spermatozoids of Cycas are :

 
 
 
 

741. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

743. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

746. Pasteurization of milk involves heating for:

 
 
 
 

747. Mycoplasma is different from bacteria due to:

 
 
 
 

748. 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:

 
 
 
 

749. Viruses are commonly transmitted in plants through:

 
 
 
 

750. Ovary is absent in :

 
 
 
 

751. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

753. The disease symptom necrosis refers to :

 
 
 
 

754. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

756. Liverworts are included in :

 
 
 
 

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

 
 
 
 

758. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

760. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

762. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

764. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

768. Cycas is similar to a mustard plant :

 
 
 
 

769. The source of litmus is :

 
 
 
 

770. Selaginella differs from Moss in having:

 
 
 
 

771. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

773. Penicillin was discovered by:

 
 
 
 

774. Why is Cycas called a living fossil?

 
 
 
 

775. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

778. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

787. Interferon is a:

 
 
 
 

788. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

791. The largest alga is:

 
 
 
 

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

 
 
 
 

793. Which is not found in bacteria?

 
 
 
 

794. Ovules are not found enclosed in ovary in :

 
 
 
 

795. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

798. The fungi are usually:

 
 
 
 

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

 
 
 
 

800. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

802. Aflatoxin is produced by:

 
 
 
 

803. Azolla growing in paddy fields helps in:

 
 
 
 

804. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. Which organisms are the oldest life forms?

 
 
 
 

808. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

810. Bacteria differ from viruses in being sensitive to:

 
 
 
 

811. Which is an edible fungus?

 
 
 
 

812. The zoospores of Ulothrix are :

 
 
 
 

813. Sexual reproduction of lichen is due to :

 
 
 
 

814. Pollination drop is:

 
 
 
 

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

 
 
 
 

816. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

819. Black rust of wheat is caused by:

 
 
 
 

820. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

822. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

824. Spirogyra represents the :

 
 
 
 

825. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

826. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

828. Triple antigen injection or vaccine are for:

 
 
 
 

829. Pollination in Pinus is :

 
 
 
 

830. Little leaf disease of Brinjal is caused by:

 
 
 
 

831. Bacteria are placed under:

 
 
 
 

832. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

834. Downy mildew disease is caused by :

 
 
 
 

835. Pythium debaryanum is the causative agent of:

 
 
 
 

836. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

838. The teeth of peristome of Funaria are :

 
 
 
 

839. Most resistant spore in bacteria is:

 
 
 
 

840. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

846. In Gymnosperms endosperm is a:

 
 
 
 

847. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. Green plants are classified as :

 
 
 
 

851. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

855. Citrus canker is caused by :

 
 
 
 

856. Which of the following lichens is harmful?

 
 
 
 

857. Clostridium can:

 
 
 
 

858. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

860. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

862. Citrus canker is caused by:

 
 
 
 

863. Siphonogamy is found in:

 
 
 
 

864. Select the correct statement: (NEET 2016)