Quiz_Random

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

 
 
 
 

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

 
 
 
 

3. Funaria is :

 
 
 
 

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

 
 
 
 

5. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

7. Saccharomyces is well known for:

 
 
 
 

8. To which class Riccia belongs :

 
 
 
 

9. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. In Cycas:

 
 
 
 

14. Saccharomyces ludwigii ascus produces:

 
 
 
 

15. Acetobacter is useful in:

 
 
 
 

16. A gill of Agaricus:

 
 
 
 

17. First animal pathogenic virus was discovered by:

 
 
 
 

18. Polystelic condition is found in:

 
 
 
 

19. 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:

 
 
 
 

20. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. Placenta in fern is:

 
 
 
 

24. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

26. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

28. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

33. Winged pollen grains are found in :

 
 
 
 

34. The gametophyte of fern bears:

 
 
 
 

35. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. The archegonia in Selaginella develop on:

 
 
 
 

40. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

42. Fairy ring is the name given to:

 
 
 
 

43. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

46. What is mycorrhiza?

 
 
 
 

47. Germination of the seed of Pinus is :

 
 
 
 

48. Mycoplasma was discovered by:

 
 
 
 

49. Transfusion tissue is present in the leaflet of:

 
 
 
 

50. Majority of lichens are :

 
 
 
 

51. All archaebacteria lack:

 
 
 
 

52. Quarantine regulations are concerned with:

 
 
 
 

53. 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?

 
 
 
 

54. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

56. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. Which one of the following statement is wrong?

 
 
 
 

60. Bivalved siliceous shell or frustule occur in:

 
 
 
 

61. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

63. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. Pteridophytes are also known as :

 
 
 
 

67. 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:

 
 
 
 

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

 
 
 
 

69. Psilotum is:

 
 
 
 

70. The lichens growing on rocks are called :

 
 
 
 

71. Which of the following are included in Tracheophyta?

 
 
 
 

72. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

74. Protistan algae obtain their food as:

 
 
 
 

75. The source of litmus is :

 
 
 
 

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

 
 
 
 

77. The order generally ends with:

 
 
 
 

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

 
 
 
 

79. The smallest bacterium is:

 
 
 
 

80. Bryophyta have been placed in cryptogams because:

 
 
 
 

81. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

83. Which fixes atmospheric nitrogen?

 
 
 
 

84. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

85. The smallest unit of classification is:

 
 
 
 

86. Club moss and Peat moss belong to:

 
 
 
 

87. 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:

 
 
 
 

88. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

90. Most common type of conjugation in Spirogyra is :

 
 
 
 

91. Meristele of fern is:

 
 
 
 

92. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. The most primitive vascular plants is:

 
 
 
 

99. The fungi that grow on wood are called:

 
 
 
 

100. Wine turns sour because of:

 
 
 
 

101. Linnaeus is credited with introducing:

 
 
 
 

102. Lichen show :

 
 
 
 

103. Early blight of potato is caused by:

 
 
 
 

104. The tallest moss in the world is :

 
 
 
 

105. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

107. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

113. The middle sterile part of capsule is called:

 
 
 
 

114. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

116. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

120. Proembryo in Pinus is :

 
 
 
 

121. The chloroplast of Chlamydomonas are:

 
 
 
 

122. Lichens are indicators of :

 
 
 
 

123. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

126. Cycas plant in appearance resembles :

 
 
 
 

127. Mycoplasmas are not viruses in nature because:

 
 
 
 

128. The sexual reproductive organs in Rhizopus are:

 
 
 
 

129. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

131. The lambda phase is a:

 
 
 
 

132. The fungi are mostly:

 
 
 
 

133. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

135. The sporangiophores in Rhizopus are:

 
 
 
 

136. The genetic material of poxvirus is:

 
 
 
 

137. Coenogamete is found in:

 
 
 
 

138. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

140. Metulae are found in:

 
 
 
 

141. True sexuality is not found in:

 
 
 
 

142. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

145. Genetic material of TMV is:

 
 
 
 

146. Plasmids are:

 
 
 
 

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

 
 
 
 

148. Virus and bacteriophage are made-up of:

 
 
 
 

149. Gymnosperms could also be called as:

 
 
 
 

150. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

152. Which is a fungicide?

 
 
 
 

153. Viruses are considered to be:

 
 
 
 

154. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

156. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

158. Cyathia is characterized by:

 
 
 
 

159. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

163. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

167. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. Little leaf disease of Brinjal is caused by:

 
 
 
 

174. Lichens are pioneers of vegetation in a :

 
 
 
 

175. Ovary is absent in :

 
 
 
 

176. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

179. Bacteria are considered to be plants because they:

 
 
 
 

180. Facultative parasite is:

 
 
 
 

181. Spores of which plants have chloroplast:

 
 
 
 

182. Maximum diversity of life forms occurs in :

 
 
 
 

183. Which group of algae have an incipient nucleus?

 
 
 
 

184. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

187. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

189. Fruits are not found in:

 
 
 
 

190. Leprosy is caused by:

 
 
 
 

191. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

193. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

195. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

197. What is special feature of fern archegonia?

 
 
 
 

198. Endemic plants are characterised by their:

 
 
 
 

199. Funaria are commonly found :

 
 
 
 

200. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

202. Ergot is obtained from :

 
 
 
 

203. Nannandria are:

 
 
 
 

204. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

207. Photoautotrophic bacteria have:

 
 
 
 

208. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

210. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. Lichens are ecologically important because :

 
 
 
 

217. Pythium debaryanum is the causative agent of:

 
 
 
 

218. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

220. To which country Antony van Leeuwenhoek belong?

 
 
 
 

221. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

224. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

226. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

228. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

230. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

234. In Cycas the fertilization is:

 
 
 
 

235. Generic name of mango is:

 
 
 
 

236. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

237. Lichens reproduce by :

 
 
 
 

238. Which is a tautonym?

 
 
 
 

239. Protozoans are considered animals because these are:

 
 
 
 

240. Iodine is obtained from :

 
 
 
 

241. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

244. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

246. What are plasmids?

 
 
 
 

247. Circular DNA is seen in:

 
 
 
 

248. Bacteriophages have been used as:

 
 
 
 

249. The spur of Pinus roxburghii has :

 
 
 
 

250. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

253. Which causes red tide?

 
 
 
 

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

 
 
 
 

255. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

259. Botulism is a:

 
 
 
 

260. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

261. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

264. Anoxygenic photosynthesis occurs in:

 
 
 
 

265. The antibiotic is obtained from:

 
 
 
 

266. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

268. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. Mixed cropping helps :

 
 
 
 

273. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

275. In moss, sporophyte is formed on:

 
 
 
 

276. Kuru, a human disease is caused by:

 
 
 
 

277. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

280. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

282. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

284. The fern plant is:

 
 
 
 

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

 
 
 
 

286. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

288. Which is not found in bacteria?

 
 
 
 

289. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

291. NBG of Lucknow is now named as:

 
 
 
 

292. Green plants are classified as:

 
 
 
 

293. Which of the following is true for Selaginella?

 
 
 
 

294. White rust of crucifers is caused by:

 
 
 
 

295. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

297. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

299. Aflatoxin is produced by:

 
 
 
 

300. How a fern differs from a moss?

 
 
 
 

301. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

303. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

305. The megaspore of Selaginella on germination produces:

 
 
 
 

306. Amoeba is a member of the phylum:

 
 
 
 

307. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

309. Cell walls of Gram-positive bacteria contain:

 
 
 
 

310. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

312. Cycas is different from mango in :

 
 
 
 

313. Which of the following are included in Tracheophyta?

 
 
 
 

314. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

316. Vascular cryptogam is the term used for :

 
 
 
 

317. The gametophyte of moss has distinct phases :

 
 
 
 

318. Helotism word is used for the symbiosis between :

 
 
 
 

319. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

322. Roots are absent in :

 
 
 
 

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

 
 
 
 

324. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

327. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

330. In Funaria, calyptra is derived from :

 
 
 
 

331. Bacteria were first discovered by:

 
 
 
 

332. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

334. 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:

 
 
 
 

335. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

336. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

338. Vascular tissue is found in :

 
 
 
 

339. In tracheophyta:

 
 
 
 

340. Select the wrong statement:

 
 
 
 

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

 
 
 
 

342. Winged seeds are found in :

 
 
 
 

343. In Pteris, the archegonia are present:

 
 
 
 

344. Iodine is obtained from:

 
 
 
 

345. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

350. Embryophyta includes :

 
 
 
 

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

 
 
 
 

352. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. Rhizoids of Riccia are :

 
 
 
 

356. Fern plants are:

 
 
 
 

357. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

360. Fern prothallus is:

 
 
 
 

361. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. Lichens form the first community in

 
 
 
 

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

 
 
 
 

366. Which is the correct statement about Selaginella?

 
 
 
 

367. 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:

 
 
 
 

368. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

370. The roots of Cycas are :

 
 
 
 

371. Smallpox is caused by:

 
 
 
 

372. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

373. Woody climbers are known as :

 
 
 
 

374. 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:

 
 
 
 

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

 
 
 
 

376. Detailed study of bacteriophage was made by:

 
 
 
 

377. The antherozoids of Funaria are :

 
 
 
 

378. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

381. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

384. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

386. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

393. Water-borne bacterial diseases are:

 
 
 
 

394. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

398. The root nodules of leguminous plants contain:

 
 
 
 

399. The fungi used as food are:

 
 
 
 

400. Yeast is a source of:

 
 
 
 

401. Which of the following is a parasitic algae?

 
 
 
 

402. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

404. Lichens reproduce by :

 
 
 
 

405. The photosynthetic protists are:

 
 
 
 

406. The role of meiosis is for:

 
 
 
 

407.

408. Who discovered cyanophages?

 
 
 
 

409. Climbers are found in genus:

 
 
 
 

410. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

412. Pinus microsporophyll bears:

 
 
 
 

413. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

415. What are Cyanobacteria?

 
 
 
 

416. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. In moss, conducting tissue is made up of

 
 
 
 

421. The chloroplast in Ulothrix is :

 
 
 
 

422. Streptomyces falls under:

 
 
 
 

423. Yeast grows more rapidly in:

 
 
 
 

424. Black rust of wheat is caused by:

 
 
 
 

425. The similarity between cyanobacteria and bacteria:

 
 
 
 

426. In Cycas which structure is equivalent to stamen?

 
 
 
 

427. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

429. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

431. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

433. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

434. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

436. Standard size of a herbarium sheet is:

 
 
 
 

437. Ovary is absent in:

 
 
 
 

438. Antibiotics cure the disease by:

 
 
 
 

439. Ulothrix produces :

 
 
 
 

440. The megasporangium of Selaginella is:

 
 
 
 

441. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

443. Where does meiosis occur in yeast?

 
 
 
 

444. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

446. Each chloroplast in Spirogyra bears :

 
 
 
 

447. Oswald Tippo’s classification is:

 
 
 
 

448. Bacteria differ from viruses in being sensitive to:

 
 
 
 

449. Spermatophyta are characterized by producing:

 
 
 
 

450.

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

 
 
 
 

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

 
 
 
 

453.

 

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

 
 
 
 

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

 
 
 
 

456. Citrus canker is caused by :

 
 
 
 

457. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

459. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

461. Select the correct statement: (NEET 2016)

 
 
 
 

462. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

464. Which one of the following is a monocot?

 
 
 
 

465. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

467. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

471. What is the role of nitrifying bacteria?

 
 
 
 

472. Viroids have:

 
 
 
 

473. Ectocarpus produces:

 
 
 
 

474. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

476. Ovules are not found enclosed in ovary in :

 
 
 
 

477. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

482. Heterospory and ligulate leaves are a feature of:

 
 
 
 

483. Some diseases caused by bacteria are:

 
 
 
 

484. Broad spectrum antibiotic is, which:

 
 
 
 

485. The development of sporangium in Selaginella is:

 
 
 
 

486. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

488. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

490. Halophiles are the bacteria that require for growth:

 
 
 
 

491. Citrus canker is caused by:

 
 
 
 

492. The leaf of Cycas shows:

 
 
 
 

493. The leaves of Funaria are :

 
 
 
 

494. Most of the lichens are composed of :

 
 
 
 

495. Which of the following statements is not correct?

 
 
 
 

496. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

498. Which of the following is a monocot?

 
 
 
 

499. Methanogens belong to:

 
 
 
 

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

 
 
 
 

501. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

502. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

504. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. Diphtheria is caused by:

 
 
 
 

508. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

513. 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:

 
 
 
 

514. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

520. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

525. E coli is a:

 
 
 
 

526. Which of the following applies to Selaginella?

 
 
 
 

527. Pollination in Cycas takes place by :

 
 
 
 

528. Vascular cryptogams is the term used for:

 
 
 
 

529.

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

 
 
 
 

531. LSD is:

 
 
 
 

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

 
 
 
 

533. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

540. Which of the following is sago palm?

 
 
 
 

541. Most of the algae are :

 
 
 
 

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

 
 
 
 

543. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

547. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

551. Cap cells are found in the filament of:

 
 
 
 

552. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

553. The teeth of peristome of Funaria are :

 
 
 
 

554. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

556. Bryophyta have a special character from other plants:

 
 
 
 

557. In angiosperms double fertilization represents:

 
 
 
 

558. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

564. Bacteria which are spherical are called:

 
 
 
 

565. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

567. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

570. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

573. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

580. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

582. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

584. Cellular slime mold is:

 
 
 
 

585. Enteric bacteria are those bacteria that live:

 
 
 
 

586. Heterocysts are found in :

 
 
 
 

587. Photosynthetic bacteria have:

 
 
 
 

588. Pasteurized milk is:

 
 
 
 

589. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

591. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. Most primitive group of vascular plants are:

 
 
 
 

595. In Funaria :

 
 
 
 

596. In binomial system most of the words are:

 
 
 
 

597. Total parasites belong to:

 
 
 
 

598. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. Azolla growing in paddy fields helps in:

 
 
 
 

602. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

604. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

606. Rhizopus and yeast are usually:

 
 
 
 

607. Male gametophyte of Selaginella is found:

 
 
 
 

608. Late blight of potato is caused by:

 
 
 
 

609. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

611. The development of Selaginella embryo is:

 
 
 
 

612. Most resistant spore in bacteria is:

 
 
 
 

613. Which is absent from the xylem of Cycas?

 
 
 
 

614. Rhizopus belongs to:

 
 
 
 

615. Heterospory is the production of:

 
 
 
 

616. Pseudomycelium is found in:

 
 
 
 

617. 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?

 
 
 
 

618. Why is Cycas called a living fossil?

 
 
 
 

619. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

622. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

624. Red rot of sugarcane is caused by :

 
 
 
 

625. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

627. In moss, stomata are found:

 
 
 
 

628. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

631. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

635. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

637. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

640. Ergot of rye is caused by:

 
 
 
 

641. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. All algae have:

 
 
 
 

645. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

647. Penicillin was discovered by:

 
 
 
 

648. Fruiting body of lichens is :

 
 
 
 

649. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

651. Bacteria are placed under:

 
 
 
 

652. Most primitive embryophytes are placed in :

 
 
 
 

653. Cryptogams include :

 
 
 
 

654. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

659. Which have the largest antherozoid?

 
 
 
 

660. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

662. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

665. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

668. Cycas is:

 
 
 
 

669. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. What is a vector?

 
 
 
 

673. What is absent in Deuteromycetes?

 
 
 
 

674. Red rot of sugarcane is caused by:

 
 
 
 

675. Heterosporous pteridophytes always form:

 
 
 
 

676. In moss, reduction division occurs in :

 
 
 
 

677. The Rhizopus is:

 
 
 
 

678. The zygospore in Rhizopus on germination forms:

 
 
 
 

679. Which of the following is a heterosporous pteridophyte?

 
 
 
 

680. Clostridium can:

 
 
 
 

681. Which is an exception to cell theory?

 
 
 
 

682. The largest alga is:

 
 
 
 

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

 
 
 
 

684. Cocci types of bacteria are:

 
 
 
 

685. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

688. In a diplontic life cycle:

 
 
 
 

689. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

691. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

693. An Hfr bacterium is one that contains:

 
 
 
 

694. Viruses are commonly transmitted in plants through:

 
 
 
 

695. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

699. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

702. Ethylene oxide is widely used to:

 
 
 
 

703. The mycelium of Rhizopus is:

 
 
 
 

704. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

706. Germ theory of disease was proposed by:

 
 
 
 

707. Bacteria are found everywhere, except:

 
 
 
 

708. Pasteur is famous for his:

 
 
 
 

709. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

712. In dinoflagellates, the two flagella are:

 
 
 
 

713. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

717. Lichens show :

 
 
 
 

718. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

720. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

723. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. Some bacteria cannot be killed easily because of:

 
 
 
 

727. Antibiotic has been extracted from :

 
 
 
 

728. The rhizoids of Funaria are :

 
 
 
 

729. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

731. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

733. Club moss is the common name of :

 
 
 
 

734. Which condition is found in Cycas?

 
 
 
 

735. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

737. Mycoplasma are:

 
 
 
 

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

 
 
 
 

739. The upper region of moss capsule is :

 
 
 
 

740. Selaginella differs from Moss in having:

 
 
 
 

741. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

743. Green plants are classified as :

 
 
 
 

744. Fern prothallus produces:

 
 
 
 

745. Chemosynthetic bacteria are:

 
 
 
 

746. Chemosynthetic bacteria are:

 
 
 
 

747. The ascus of yeast contains:

 
 
 
 

748. Cyanophage is a virus that attacks:

 
 
 
 

749. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

753. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

756. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

757. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

759. Which of the following statement is correct?

 
 
 
 

760. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

762. Seeds are characteristically found in :

 
 
 
 

763. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

767. Acellular slime mold is/are:

 
 
 
 

768. Saccharomyces is used in:

 
 
 
 

769. Sporophyte of Funaria is :

 
 
 
 

770. The coralloid roots are :

 
 
 
 

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

 
 
 
 

772. Nitrogen-fixing bacteria may be located:

 
 
 
 

773. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

775. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

777. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

780. Cycas is :

 
 
 
 

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

 
 
 
 

782. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

786. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

788. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

793. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

798. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

800. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

802. 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?

 
 
 
 

803. Rhizophore of Selaginella is:

 
 
 
 

804. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

809. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

813. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

814. Funaria is :

 
 
 
 

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

 
 
 
 

816. Which of the following does not contain chlorophyll?

 
 
 
 

817. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

822. Parmelia belongs to :

 
 
 
 

823. Common phycobiont in a lichen is :

 
 
 
 

824. Most primitive embryophytes are placed in:

 
 
 
 

825. Desired type of Cycas can be grown by:

 
 
 
 

826. Soil fertility is lost by the activities of:

 
 
 
 

827. Ginkgo biloba is a:

 
 
 
 

828. All protozoans possess:

 
 
 
 

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

 
 
 
 

830. Yeast belongs to class:

 
 
 
 

831. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

832. How is moss different from fern?

 
 
 
 

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

 
 
 
 

834. In Herpes virus DNA is:

 
 
 
 

835. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

837. Asexual reproductive body of Volvox is called:

 
 
 
 

838. Fertility of the soil is increased by:

 
 
 
 

839. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

840. Disease resistant plant varieties can be produced by :

 
 
 
 

841. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

844. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

846. Smut of maize is caused by :

 
 
 
 

847. Leaf spot of groundnut is caused by :

 
 
 
 

848. Which is a gametophytic tissue?

 
 
 
 

849. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

852. 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?

 
 
 
 

853. . Tapetum develops in:

 
 
 
 

854. The chromosomal number in:

 
 
 
 

855. Centric discoid form of diatom is:

 
 
 
 

856. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

858. The ferns are usually found:

 
 
 
 

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

 
 
 
 

860. Gram stain is used to:

 
 
 
 

861. Which is an edible fungus?

 
 
 
 

862. In Cycas microsporangia are borne on:

 
 
 
 

863. One of the distinctive feature of Spirogyra is :

 
 
 
 

864. Pollination in Pinus is :