Quiz_Random

1. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

3. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

4. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

6. Pinus microsporophyll bears:

 
 
 
 

7. Discovery of penicillin was based on:

 
 
 
 

8. Etiology includes the study of :

 
 
 
 

9. Virion refers to:

 
 
 
 

10. Bacteriophages have been used as:

 
 
 
 

11. Photosynthetic bacteria have:

 
 
 
 

12. In Funaria :

 
 
 
 

13. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

15. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

17. Lichens show :

 
 
 
 

18. In binomial system most of the words are:

 
 
 
 

19. 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:

 
 
 
 

20. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Banana bunchy top is caused by :

 
 
 
 

32. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

42. Select the wrong statement:

 
 
 
 

43. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

45. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

47. Green plants are classified as :

 
 
 
 

48. Protistan algae obtain their food as:

 
 
 
 

49. Which is an exception to cell theory?

 
 
 
 

50. Most appropriate word for protozoans is:

 
 
 
 

51. 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?

 
 
 
 

52. Plasmids are:

 
 
 
 

53. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

55. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. The leaves of Funaria are :

 
 
 
 

62. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Desired type of Cycas can be grown by:

 
 
 
 

68. Interferon is a:

 
 
 
 

69. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

78. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

83. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. The mode of nutrition of bacteria is usually:

 
 
 
 

87. Mycoplasma was discovered by:

 
 
 
 

88. Which of the following applies to Selaginella?

 
 
 
 

89.

90. Acetobacter is useful in:

 
 
 
 

91. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

93. Cryptogams include :

 
 
 
 

94. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

96. Leaf spot of groundnut is caused by :

 
 
 
 

97. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

100. The microsporophylls on the cone of Cycas are :

 
 
 
 

101. Vascular tissue is found in :

 
 
 
 

102. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

105. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

109. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

113. Gametophyte is the main plant body in :

 
 
 
 

114. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

121. The disease apple scab is caused by:

 
 
 
 

122. LSD is:

 
 
 
 

123. Pasteur is famous for his:

 
 
 
 

124. Roots are absent in :

 
 
 
 

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

 
 
 
 

126. Which of the following lichens is harmful?

 
 
 
 

127. Sporophyte of fern is:

 
 
 
 

128. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

135. Which is a tautonym?

 
 
 
 

136. The chloroplast in Ulothrix is :

 
 
 
 

137. In tracheophyta:

 
 
 
 

138.

 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

144. Wine turns sour because of:

 
 
 
 

145. In dinoflagellates, the two flagella are:

 
 
 
 

146. Maximum diversity of life forms occurs in :

 
 
 
 

147. Linnaeus is credited with introducing:

 
 
 
 

148. What is streptomycin?

 
 
 
 

149. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

151. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

154. Redness of red sea is due to :

 
 
 
 

155. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

158. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

160. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

162. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

164. The megaspore of Selaginella on germination produces:

 
 
 
 

165. The spermatozoids of Cycas are :

 
 
 
 

166. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

170. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

172. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

174. Cyanophage is a virus that attacks:

 
 
 
 

175. All protozoans possess:

 
 
 
 

176. Halophiles are the bacteria that require for growth:

 
 
 
 

177. Fern phloem lacks:

 
 
 
 

178. The most important property of yeast is:

 
 
 
 

179. Funaria are commonly found :

 
 
 
 

180. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

182. Most primitive kind of flower is represented by:

 
 
 
 

183. Male gametes in Dryopteris are:

 
 
 
 

184. Pythium debaryanum is the causative agent of:

 
 
 
 

185. Little leaf disease of Brinjal is caused by:

 
 
 
 

186. How is moss different from fern?

 
 
 
 

187. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

189. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

192. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

194. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

196. The gametophyte of moss has distinct phases :

 
 
 
 

197. Clostridium can:

 
 
 
 

198. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

200. The Rhizopus gametes are formed in:

 
 
 
 

201. Among the algae kelps are :

 
 
 
 

202. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

203. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

208. In Cycas microsporangia are borne on:

 
 
 
 

209. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. What is mycorrhiza?

 
 
 
 

214. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

216. Placenta in fern is:

 
 
 
 

217. Late blight of potato is caused by :

 
 
 
 

218. Isomorphic type alternation of generation is found in:

 
 
 
 

219. Disease resistant plant varieties can be produced by :

 
 
 
 

220. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Woody climbers are known as :

 
 
 
 

224. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

226. Azolla and Salvinia both are:

 
 
 
 

227. Indusium in Dryopteris is:

 
 
 
 

228. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

232. Which of the following statements is not correct?

 
 
 
 

233. Special feature of pollen grains of Pinus is :

 
 
 
 

234. The group algae possesses representatives belonging to kingdom:

 
 
 
 

235. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

237. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

239. The sexual reproductive organs in Rhizopus are:

 
 
 
 

240. Embryo formation is not known in :

 
 
 
 

241.

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

 
 
 
 

243. In moss, sporogenous tissue arises from:

 
 
 
 

244. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

247. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

249. In moss, stomata are found:

 
 
 
 

250. Late blight of potato is caused by:

 
 
 
 

251. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

254. Embryophyta includes:

 
 
 
 

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

 
 
 
 

256. Anoxygenic photosynthesis occurs in:

 
 
 
 

257. Pinus is:

 
 
 
 

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

 
 
 
 

259. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. In moss, reduction division occurs in :

 
 
 
 

264. Most primitive group of vascular plants are:

 
 
 
 

265. Fruiting body of lichens is :

 
 
 
 

266. 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:

 
 
 
 

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

 
 
 
 

268. Metulae are found in:

 
 
 
 

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

 
 
 
 

270. Mucilaginous canals in Cycas are found in :

 
 
 
 

271. Club moss and Peat moss belong to:

 
 
 
 

272. Lichens reproduce by :

 
 
 
 

273. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

275. Infective part of virus was discovered by:

 
 
 
 

276. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

277. Which of the following is true for viruses?

 
 
 
 

278. Which of the following are included in Tracheophyta?

 
 
 
 

279. Citrus canker is caused by:

 
 
 
 

280. In Selaginella, the microsporangia are:

 
 
 
 

281. Most resistant spore in bacteria is:

 
 
 
 

282. One of the distinctive feature of Spirogyra is :

 
 
 
 

283. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

286. Antibiotic has been extracted from :

 
 
 
 

287. The source of litmus is :

 
 
 
 

288. The disease symptom necrosis refers to :

 
 
 
 

289. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

292. Who among the following discovered virus?

 
 
 
 

293. Saccharomyces is well known for:

 
 
 
 

294. The fern plant is:

 
 
 
 

295. The teeth of peristome of Funaria are :

 
 
 
 

296. True sexuality is not found in:

 
 
 
 

297. Majority of lichens are :

 
 
 
 

298. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

302. The development of sporangium in Selaginella is:

 
 
 
 

303. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

305. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

310. The two conjugating gametangia of Rhizopus are:

 
 
 
 

311. John Hutchinson divided dicots into two divisions:

 
 
 
 

312. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. Lichens form the first community in

 
 
 
 

316. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. The leaf of Cycas shows:

 
 
 
 

320. Bentham and Hooker placed gymnosperms:

 
 
 
 

321. 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:

 
 
 
 

322. Rhizopus belongs to:

 
 
 
 

323. Which bacteria convert nitrate into nitrogen?

 
 
 
 

324. Broad spectrum antibiotic is, which:

 
 
 
 

325. Mostly type of zygospore in Ulothrix is:

 
 
 
 

326. Gram stain is used to:

 
 
 
 

327. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

331. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

340. The truncated cone of HIV consists of:

 
 
 
 

341. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

343. Rice, pea, potato are :

 
 
 
 

344. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

346. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

348. The gametophyte of fern bears:

 
 
 
 

349. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

351. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

353. Viruses are commonly transmitted in plants through:

 
 
 
 

354. Reproduction in Cycas takes place by :

 
 
 
 

355. Spermatophyta are characterized by producing:

 
 
 
 

356. Mycoplasma are:

 
 
 
 

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

 
 
 
 

358. Pteridophytes are also known as :

 
 
 
 

359. Heterotrichous habit means :

 
 
 
 

360. The lichens growing on rocks are called :

 
 
 
 

361. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

363. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

366. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

370. Ovules are not found enclosed in ovary of:

 
 
 
 

371. Select the wrong statement:

 
 
 
 

372. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

374. The DNA of E coli is:

 
 
 
 

375. TMV was isolated in crystalline form by:

 
 
 
 

376. Antibiotics cure the disease by:

 
 
 
 

377. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

379. The fungi are usually:

 
 
 
 

380. Winged seeds are found in :

 
 
 
 

381. The antibiotic is obtained from:

 
 
 
 

382. Cocci types of bacteria are:

 
 
 
 

383. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

385. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

392. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

395. In Gymnosperms endosperm is a:

 
 
 
 

396. Reserve food in Euglena is:

 
 
 
 

397. The fungi that grow on wood are called:

 
 
 
 

398. Mycoplasma contains:

 
 
 
 

399. Pasteurization of milk involves heating for:

 
 
 
 

400. Lichens are ecologically important because :

 
 
 
 

401. Fruits are not found in:

 
 
 
 

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

 
 
 
 

403. Small epidermal swellings due to infection are called :

 
 
 
 

404. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

408. The ascus of yeast contains:

 
 
 
 

409. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

417. The first to isolate a plant virus was:

 
 
 
 

418. Cellular slime mold is:

 
 
 
 

419. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

421. Lichen show :

 
 
 
 

422. To which country Antony van Leeuwenhoek belong?

 
 
 
 

423. Sometimes the bacterial cell is enclosed in:

 
 
 
 

424. The tree fern is:

 
 
 
 

425. Parmelia belongs to :

 
 
 
 

426. What are plasmids?

 
 
 
 

427. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

428. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

432. Vegetative reproduction in Cycas is by means of :

 
 
 
 

433. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. The prothallus of fern represents the plant:

 
 
 
 

438. Ulothrix produces :

 
 
 
 

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

 
 
 
 

440. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

442. The Rhizopus is:

 
 
 
 

443. Total parasites belong to:

 
 
 
 

444. Which class of Protozoa includes all parasitic forms?

 
 
 
 

445. In moss, peristomial teeth are:

 
 
 
 

446. Fruits are not found in :

 
 
 
 

447. Kuru, a human disease is caused by:

 
 
 
 

448. The gametophyte produced by apospory is :

 
 
 
 

449. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

451. The zoospores of Ulothrix are :

 
 
 
 

452. The stele of Dryopteris is a:

 
 
 
 

453. The lambda phase is a:

 
 
 
 

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

 
 
 
 

455. Bacteria are considered to be plants because they:

 
 
 
 

456. Botulism is a:

 
 
 
 

457. Red rot of sugarcane is caused by:

 
 
 
 

458. Polystelic condition is found in:

 
 
 
 

459. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

460. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

462. In Cycas the fertilization is:

 
 
 
 

463. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

465. Which of the following shows heterotrichous habit?

 
 
 
 

466. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

468. Most of the algae are :

 
 
 
 

469. Which of the following statement is correct?

 
 
 
 

470. The gametophyte of fern is as:

 
 
 
 

471. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. Botulinum toxin effects:

 
 
 
 

475. Smut of maize is caused by :

 
 
 
 

476. Milk is converted to curd by:

 
 
 
 

477. All algae have:

 
 
 
 

478. Ovules are not found enclosed in ovary in :

 
 
 
 

479. The term stele was given by:

 
 
 
 

480. The orders generally have the uniform endings:

 
 
 
 

481. The vascular bundles of Cycas stem are :

 
 
 
 

482. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

484. In Cycas:

 
 
 
 

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

 
 
 
 

486. The smallest bacterium is:

 
 
 
 

487. Downy mildew disease is caused by :

 
 
 
 

488. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

493. Which of the following is a heterosporous pteridophyte?

 
 
 
 

494. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

496. Detailed study of bacteriophage was made by:

 
 
 
 

497. Viruses are considered to be:

 
 
 
 

498. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

503. Mixed cropping helps :

 
 
 
 

504. Which lichen is called Reindeer moss?

 
 
 
 

505. Number of capsomeres forming capsid of TMV is:

 
 
 
 

506. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

508. Endemic plants are characterised by their:

 
 
 
 

509. Viroids have:

 
 
 
 

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

 
 
 
 

511. The chief characteristic of class Ascomycetes is:

 
 
 
 

512. The sori in Dryopteris are found on:

 
 
 
 

513. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

516. Synzoospore is produced in:

 
 
 
 

517. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

519. Fern prothallus produces:

 
 
 
 

520. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

522. What is a vector?

 
 
 
 

523. Red rot of sugarcane is caused by :

 
 
 
 

524. The spur of Pinus roxburghii has :

 
 
 
 

525. The upper region of moss capsule is :

 
 
 
 

526. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

528. Green plants are classified as:

 
 
 
 

529. All archaebacteria lack:

 
 
 
 

530. Ovary is absent in:

 
 
 
 

531. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

535. Funaria is a Bryophyta because :

 
 
 
 

536. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

538. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. The sporangia of Selaginella are attached:

 
 
 
 

543. Pollination in Pinus is :

 
 
 
 

544. Typhoid in man is caused by:

 
 
 
 

545. Pollination in Cycas takes place by :

 
 
 
 

546. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

548. Facultative parasite is:

 
 
 
 

549. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

552. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

554. Tautonyms are illegitimate in:

 
 
 
 

555. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

557. Ectocarpus produces:

 
 
 
 

558. Male gametophyte of Selaginella is found:

 
 
 
 

559. Absorptive nutrition is:

 
 
 
 

560. Which causes red tide?

 
 
 
 

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

 
 
 
 

562. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. Common phycobiont in a lichen is :

 
 
 
 

569. Water bloom is generally caused by :

 
 
 
 

570. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

573. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

575. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

577. Black rust of wheat is caused by:

 
 
 
 

578. The ferns are usually found:

 
 
 
 

579. Which of the following have algal zone?

 
 
 
 

580. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

582. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

588. Nitrifying bacteria play an important role by converting:

 
 
 
 

589. In a bacteriophage, DNA is present in:

 
 
 
 

590. Heterosporous pteridophytes always form:

 
 
 
 

591. 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?

 
 
 
 

592. Black rust of wheat is caused by:

 
 
 
 

593. Reproduction in Rhizopus is:

 
 
 
 

594. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

597. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

600. Which is not true for Escherichia coli?

 
 
 
 

601. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

603. To which class Riccia belongs :

 
 
 
 

604. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

608. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

611. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

613. Bacteria were first discovered by:

 
 
 
 

614. Chemosynthetic bacteria are:

 
 
 
 

615. Sexual reproduction in Rhizopus is by:

 
 
 
 

616. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

623. Pinus gerardiana is :

 
 
 
 

624. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

626. Cycas revoluta is widely grown as :

 
 
 
 

627. Protists which are diploid reproduce sexually by:

 
 
 
 

628. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

631. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

635. Amoeba is a member of the phylum:

 
 
 
 

636. Most common type of conjugation in Spirogyra is :

 
 
 
 

637. Fruits are not found in Cycas because:

 
 
 
 

638. Funaria is :

 
 
 
 

639. Climbers are found in genus:

 
 
 
 

640. Pythium debaryanum is the causative agent of:

 
 
 
 

641. Cyathia is characterized by:

 
 
 
 

642. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

644. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

647. Pneumonia is caused by:

 
 
 
 

648. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

651. The tallest moss in the world is :

 
 
 
 

652. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

653. Centric discoid form of diatom is:

 
 
 
 

654. Multicellular and jacketed sex organs are found in :

 
 
 
 

655. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

657. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

659.

660. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

662. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

664. Generic name of mango is:

 
 
 
 

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

 
 
 
 

666. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

668. Asexual reproductive body of Volvox is called:

 
 
 
 

669. Which is absent from the xylem of Cycas?

 
 
 
 

670. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

673. Ginkgo biloba is a:

 
 
 
 

674. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

676. The fungi used as food are:

 
 
 
 

677. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

679. The leafy fern plant represents the:

 
 
 
 

680. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

682. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

684. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

686. Siphonogamy is found in:

 
 
 
 

687. Spirogyra differs from moss protonema in having :

 
 
 
 

688. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

691. Ovary is absent in :

 
 
 
 

692. 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:

 
 
 
 

693. In moss, conducting tissue is made up of

 
 
 
 

694. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

695. The coralloid roots are :

 
 
 
 

696. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

698. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

700. Water-net is the name of:

 
 
 
 

701. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

704. Which of the following does not contain chlorophyll?

 
 
 
 

705. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

708. Rhizopus and yeast are usually:

 
 
 
 

709. An Hfr bacterium is one that contains:

 
 
 
 

710. Triple antigen injection or vaccine are for:

 
 
 
 

711. Aflatoxin is produced as a product in :

 
 
 
 

712. Who discovered streptomycin?

 
 
 
 

713. Liverworts are included in :

 
 
 
 

714. Which is the correct statement about Selaginella?

 
 
 
 

715. Cycas is :

 
 
 
 

716. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

718. Longest known virus is:

 
 
 
 

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

 
 
 
 

720. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

724. Ethylene oxide is widely used to:

 
 
 
 

725. Usually, bacteria reproduce by:

 
 
 
 

726. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. Viruses have:

 
 
 
 

730. Virus and bacteriophage are made-up of:

 
 
 
 

731. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

733. E coli is a:

 
 
 
 

734. 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:

 
 
 
 

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

 
 
 
 

736. Some biologists have used the term Mycetozoa for:

 
 
 
 

737. Acellular slime mold is/are:

 
 
 
 

738. Lichens are indicators of :

 
 
 
 

739. Most of the lichens are composed of :

 
 
 
 

740. Mycoplasma are sensitive to:

 
 
 
 

741. Which is a redwood tree?

 
 
 
 

742. Sexual reproduction of lichen is due to :

 
 
 
 

743. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

745. Bacteria growing on synthetic medium are called:

 
 
 
 

746. The rhizoids of Funaria are :

 
 
 
 

747. Which is a fungicide?

 
 
 
 

748. Standard size of a herbarium sheet is:

 
 
 
 

749. Cycas is:

 
 
 
 

750. Yeast belongs to class:

 
 
 
 

751. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

759. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

761. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

763. Penicillin was discovered by:

 
 
 
 

764. Spermatophyta are characterized by producing:

 
 
 
 

765. Which condition is found in Cycas?

 
 
 
 

766. 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?

 
 
 
 

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

 
 
 
 

768. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

770. In a diplontic life cycle:

 
 
 
 

771. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

772. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

774. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

776. The largest alga is:

 
 
 
 

777. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

778. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

780. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

783. Saccharomyces is used in:

 
 
 
 

784. The zygospore in Rhizopus on germination forms:

 
 
 
 

785. Methanogens belong to:

 
 
 
 

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

 
 
 
 

787. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

789. Most primitive embryophytes are placed in :

 
 
 
 

790. Germ theory of disease was proposed by:

 
 
 
 

791. Economic importance of bacteria lies in their being:

 
 
 
 

792. Penicillin is obtained from:

 
 
 
 

793. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

795. Protozoans are considered animals because these are:

 
 
 
 

796. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

798. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

800. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

802. Heterospory is the production of:

 
 
 
 

803. Facultative saprophyte is:

 
 
 
 

804. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

809. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

811. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

816. Cycas plant in appearance resembles :

 
 
 
 

817. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

819. The similarity between cyanobacteria and bacteria:

 
 
 
 

820. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

822. 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?

 
 
 
 

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

 
 
 
 

824. Psilotum is:

 
 
 
 

825. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

827. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

829. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

835. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. Where does meiosis occur in yeast?

 
 
 
 

840. Which of the following is a parasitic algae?

 
 
 
 

841. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

843. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

845. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

847. Fern prothallus is:

 
 
 
 

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

 
 
 
 

849. Fern plants are:

 
 
 
 

850. Which is an edible fungus?

 
 
 
 

851. Choose the correct statement about Spirogyra:

 
 
 
 

852. Funaria is :

 
 
 
 

853. Enteric bacteria are those bacteria that live:

 
 
 
 

854. Cleavage polyembryony is found in :

 
 
 
 

855. The young leaves of Cycas have :

 
 
 
 

856. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

859. The central part of Funaria axis is :

 
 
 
 

860. Pteridophyta are also called:

 
 
 
 

861. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

864. In moss, calyptra is formed from: