Quiz_Random

1. The lambda phase is a:

 
 
 
 

2. Most resistant spore in bacteria is:

 
 
 
 

3. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

5. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

7. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Lichens show :

 
 
 
 

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

 
 
 
 

13. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

15. The fungi used as food are:

 
 
 
 

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

 
 
 
 

17. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Sporophyte of fern is:

 
 
 
 

25. Lichens are pioneers of vegetation in a :

 
 
 
 

26. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

28. Longest known virus is:

 
 
 
 

29. Reserve food in Euglena is:

 
 
 
 

30. All protozoans possess:

 
 
 
 

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

 
 
 
 

32. Black rust of wheat is caused by:

 
 
 
 

33. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. The archegonia in Selaginella develop on:

 
 
 
 

40. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Disease resistant plant varieties can be produced by :

 
 
 
 

49. Pythium debaryanum is the causative agent of:

 
 
 
 

50. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

52. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

54. In binomial system most of the words are:

 
 
 
 

55. Viruses have:

 
 
 
 

56. Funaria is a Bryophyta because :

 
 
 
 

57. Seeds are characteristically found in:

 
 
 
 

58. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. What is streptomycin?

 
 
 
 

62. Sleeping sickness disease in man is caused by:

 
 
 
 

63. Fertility of the soil is increased by:

 
 
 
 

64. The tree fern is:

 
 
 
 

65. In Cycas the fertilization is:

 
 
 
 

66. Which causes red tide?

 
 
 
 

67. Yeast grows more rapidly in:

 
 
 
 

68. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

70. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

71. Smallpox is caused by:

 
 
 
 

72. The photosynthetic protists are:

 
 
 
 

73. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

75. Lichens are ecologically important because :

 
 
 
 

76. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

77. Climbers are found in genus:

 
 
 
 

78. Selaginella differs from Moss in having:

 
 
 
 

79. Fruits are not found in:

 
 
 
 

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

 
 
 
 

81. Simple polyembryony is found in :

 
 
 
 

82. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

84. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

89. The middle sterile part of capsule is called:

 
 
 
 

90. Generic name of mango is:

 
 
 
 

91. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Nannandria are:

 
 
 
 

96. Which statement is wrong in regard to bacteria?

 
 
 
 

97. Black rust of wheat is caused by:

 
 
 
 

98. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

100. Embryo formation is not known in :

 
 
 
 

101. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

103. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. Gametophyte is the main plant body in :

 
 
 
 

108. 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?

 
 
 
 

109. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

114. Which of the following statements is not correct?

 
 
 
 

115. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

117. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

119. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

121. Metulae are found in:

 
 
 
 

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

 
 
 
 

123. Who named prion?

 
 
 
 

124. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. Interferon is a:

 
 
 
 

129. What is the role of nitrifying bacteria?

 
 
 
 

130. Ovules are not found enclosed in ovary in :

 
 
 
 

131. Which is the correct statement about Selaginella?

 
 
 
 

132. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

134. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

136. Bacteriophage consists of:

 
 
 
 

137. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

139. Ergot is obtained from :

 
 
 
 

140. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

141. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

143. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

145. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

147. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

149. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

154. In angiosperms double fertilization represents:

 
 
 
 

155. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

159. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

161. The prothallus of fern is:

 
 
 
 

162. The largest alga is:

 
 
 
 

163. The role of meiosis is for:

 
 
 
 

164. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

169. Penicillin was discovered by:

 
 
 
 

170. The coralloid roots are :

 
 
 
 

171. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

175. The teeth of peristome of Funaria are :

 
 
 
 

176. Where does meiosis occur in yeast?

 
 
 
 

177. In Selaginella, the microsporangia are:

 
 
 
 

178. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

180. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

186. Cycas is different from mango in :

 
 
 
 

187. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

190. Embryophyta includes:

 
 
 
 

191. LSD is:

 
 
 
 

192. Black rust of wheat is caused by:

 
 
 
 

193. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

198. Cycas is :

 
 
 
 

199. Bacteria growing on synthetic medium are called:

 
 
 
 

200. Roots are absent in :

 
 
 
 

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

 
 
 
 

202. The nucleus of bacteria is:

 
 
 
 

203. The chief characteristic of bryophyta is that :

 
 
 
 

204. Which have the largest antherozoid?

 
 
 
 

205. 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?

 
 
 
 

206. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

210. Green plants are classified as :

 
 
 
 

211. Synzoospore is produced in:

 
 
 
 

212. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

214. Rhizopus and yeast are usually:

 
 
 
 

215. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

217. Spermatophyta are characterized by producing:

 
 
 
 

218. How a fern differs from a moss?

 
 
 
 

219. TMV was isolated in crystalline form by:

 
 
 
 

220. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

221. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

223. Typhoid in man is caused by:

 
 
 
 

224. Bentham and Hooker placed gymnosperms:

 
 
 
 

225. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

227. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

230. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

231. E coli is a:

 
 
 
 

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

 
 
 
 

233. Tautonyms are illegitimate in:

 
 
 
 

234. Which of the following is true for Selaginella?

 
 
 
 

235. Reproduction in Rhizopus is:

 
 
 
 

236. Saccharomyces is used in:

 
 
 
 

237. The orders generally have the uniform endings:

 
 
 
 

238. The archegonia of Selaginella are differentiated by:

 
 
 
 

239. In moss, reduction division occurs in :

 
 
 
 

240. Which of the following shows heterotrichous habit?

 
 
 
 

241. Aflatoxin is produced as a product in :

 
 
 
 

242. Placenta in fern is:

 
 
 
 

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

 
 
 
 

244. Germination of the seed of Pinus is :

 
 
 
 

245. In Cycas:

 
 
 
 

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

 
 
 
 

247. Pseudomycelium is found in:

 
 
 
 

248. Sporophyte of Funaria is :

 
 
 
 

249. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

250. Antibiotic has been extracted from :

 
 
 
 

251. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

254. Funaria is :

 
 
 
 

255. Downy mildew disease is caused by :

 
 
 
 

256. Green plants are classified as:

 
 
 
 

257. Kuru, a human disease is caused by:

 
 
 
 

258. Diploxylic vascular bundles are found in:

 
 
 
 

259. In moss, sporogenous tissue arises from:

 
 
 
 

260. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

262. Which is a tautonym?

 
 
 
 

263. Which is a gametophytic tissue?

 
 
 
 

264. The source of litmus is :

 
 
 
 

265. The disease symptom necrosis refers to :

 
 
 
 

266. The chloroplast of Chlamydomonas are:

 
 
 
 

267. Discovery of penicillin was based on:

 
 
 
 

268. Lichens form the first community in

 
 
 
 

269. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

271. Total parasites belong to:

 
 
 
 

272. Psilotum is:

 
 
 
 

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

 
 
 
 

274. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

277. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

279. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

285. Which is a fungicide?

 
 
 
 

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

 
 
 
 

287. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

289. Which condition is found in Cycas?

 
 
 
 

290. Yeast is a source of:

 
 
 
 

291. White rust of crucifers is caused by:

 
 
 
 

292. Rice, pea, potato are :

 
 
 
 

293. Mycoplasma are sensitive to:

 
 
 
 

294. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

296. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

298. Oswald Tippo’s classification is:

 
 
 
 

299. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

301. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

304. The gametophyte of fern is as:

 
 
 
 

305. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

308. The sori in Dryopteris are found on:

 
 
 
 

309. Desired type of Cycas can be grown by:

 
 
 
 

310. The prothallus of fern represents the plant:

 
 
 
 

311. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

313. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

315. All archaebacteria lack:

 
 
 
 

316. The gametophyte of fern bears:

 
 
 
 

317. In Pteris, the roots are:

 
 
 
 

318. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

321. Why is Cycas called a living fossil?

 
 
 
 

322. Cap cells are found in the filament of:

 
 
 
 

323. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

325. To which class Riccia belongs :

 
 
 
 

326. Pteridophyta are also called:

 
 
 
 

327. Which of the following are included in Tracheophyta?

 
 
 
 

328. Botulism is a:

 
 
 
 

329. Chemosynthetic bacteria are:

 
 
 
 

330. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

332. In a bacteriophage, DNA is present in:

 
 
 
 

333. The gametophyte produced by apospory is :

 
 
 
 

334. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

337. 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:

 
 
 
 

338. The phloem of vascular system of Cycas is :

 
 
 
 

339. Who discovered cyanophages?

 
 
 
 

340. Embryophyta includes :

 
 
 
 

341. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

346. How is moss different from fern?

 
 
 
 

347. Which of the following statement is correct?

 
 
 
 

348. 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:

 
 
 
 

349. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

351. Rhizoids of Riccia are :

 
 
 
 

352. Ovules are not found enclosed in ovary of:

 
 
 
 

353. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. Select the correct statement: (NEET 2016)

 
 
 
 

358. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

362. Club moss is the common name of :

 
 
 
 

363. The smallest unit of classification is:

 
 
 
 

364. Streptomyces falls under:

 
 
 
 

365. Proembryo in Pinus is :

 
 
 
 

366. Most common type of conjugation in Spirogyra is :

 
 
 
 

367. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

371. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

373. Which of the following is a heterosporous pteridophyte?

 
 
 
 

374. The roots of Cycas are :

 
 
 
 

375. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

380. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

382. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

386. Which bacteria convert nitrate into nitrogen?

 
 
 
 

387. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

390. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

392. 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:

 
 
 
 

393. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

395. The root nodules of leguminous plants contain:

 
 
 
 

396. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

398. What is absent in Deuteromycetes?

 
 
 
 

399. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

401. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

404. Maximum diversity of life forms occurs in :

 
 
 
 

405. Who discovered heterothallism in fungi?

 
 
 
 

406. Redness of red sea is due to :

 
 
 
 

407. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

409. Absorptive nutrition is:

 
 
 
 

410. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. The fungi that grow on wood are called:

 
 
 
 

414. Ectocarpus produces:

 
 
 
 

415. Helotism word is used for the symbiosis between :

 
 
 
 

416. Male gametes in Dryopteris are:

 
 
 
 

417. Most appropriate word for protozoans is:

 
 
 
 

418. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

421. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

423. Protists which are diploid reproduce sexually by:

 
 
 
 

424. Plasmids are:

 
 
 
 

425. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

427.

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

 
 
 
 

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

 
 
 
 

430. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

432. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

435. Which among the following is a shrub?

 
 
 
 

436. Spirogyra differs from moss protonema in having :

 
 
 
 

437. Red rot of sugarcane is caused by:

 
 
 
 

438. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

439. The male gametes of Pinus are :

 
 
 
 

440. The rhizoids of Funaria are :

 
 
 
 

441. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

443. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

444. Water bloom is generally caused by :

 
 
 
 

445. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

447. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

449. In moss, calyptra is formed from:

 
 
 
 

450. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

453. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

455. 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:

 
 
 
 

456. Fern plants are:

 
 
 
 

457. Aflatoxin is produced by:

 
 
 
 

458. Pythium debaryanum is the causative agent of:

 
 
 
 

459. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

460. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

463. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

475. A gill of Agaricus:

 
 
 
 

476. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

479. Club moss and Peat moss belong to:

 
 
 
 

480. Each chloroplast in Spirogyra bears :

 
 
 
 

481. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

483. Majority of lichens are :

 
 
 
 

484. Which of the following lichens is harmful?

 
 
 
 

485. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

487. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

489. The stele of Dryopteris is a:

 
 
 
 

490. Lichens reproduce by :

 
 
 
 

491. Cell walls of Gram-positive bacteria contain:

 
 
 
 

492. The mycelium of Rhizopus is:

 
 
 
 

493. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

495. Which of the following is a monocot?

 
 
 
 

496. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

498. Male gametophyte of Selaginella is found:

 
 
 
 

499. An alga which is rich in proteins:

 
 
 
 

500.

 

501. Sometimes the bacterial cell is enclosed in:

 
 
 
 

502. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

504. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

508. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

511. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514. Virion refers to:

 
 
 
 

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

 
 
 
 

516. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

522. Which of the following have a prokaryotic cell?

 
 
 
 

523. Botulinum toxin effects:

 
 
 
 

524. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

526. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

528. Chemosynthetic bacteria are:

 
 
 
 

529. What are Cyanobacteria?

 
 
 
 

530. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

534. Vascular cryptogams is the term used for:

 
 
 
 

535. Clostridium can:

 
 
 
 

536. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

538. Mycoplasma was discovered by:

 
 
 
 

539. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. Penicillin is obtained from:

 
 
 
 

543. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

545. Select the wrong statement:

 
 
 
 

546. The development of Selaginella embryo is:

 
 
 
 

547. Ulothrix produces :

 
 
 
 

548. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

550. The disease apple scab is caused by:

 
 
 
 

551. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

554. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

556. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

558. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. The sexual reproductive organs in Rhizopus are:

 
 
 
 

563. 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?

 
 
 
 

564. Meristele of fern is:

 
 
 
 

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

 
 
 
 

566. Saccharomyces ludwigii ascus produces:

 
 
 
 

567. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

569. Which is an exception to cell theory?

 
 
 
 

570. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

575. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

577. Who discovered streptomycin?

 
 
 
 

578. Leprosy is caused by:

 
 
 
 

579. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

581.

582. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

584. Which is a redwood tree?

 
 
 
 

585. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

588. Fern prothallus produces:

 
 
 
 

589. The fungi are mostly:

 
 
 
 

590. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. In Funaria, calyptra is derived from :

 
 
 
 

595. The genetic material of poxvirus is:

 
 
 
 

596. Streptomycin is obtained from:

 
 
 
 

597. The spur of Pinus roxburghii has :

 
 
 
 

598. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

600. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

602. Lichens are the indicator of pollution :

 
 
 
 

603. In a diplontic life cycle:

 
 
 
 

604. Choose the correct statement about Spirogyra:

 
 
 
 

605. 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?

 
 
 
 

606. Late blight of potato is caused by:

 
 
 
 

607. Quarantine regulations are concerned with:

 
 
 
 

608. Lichens are indicators of :

 
 
 
 

609. Banana bunchy top is caused by :

 
 
 
 

610. Most of the algae are :

 
 
 
 

611. Rhizopus belongs to:

 
 
 
 

612. The Rhizopus gametes are formed in:

 
 
 
 

613. Meiosis in Ulothrix takes place:

 
 
 
 

614. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

616. Cocci types of bacteria are:

 
 
 
 

617. Woody climbers are known as :

 
 
 
 

618. Endemic plants are characterised by their:

 
 
 
 

619. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

620. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

624. Standard size of a herbarium sheet is:

 
 
 
 

625. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

627. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

629. The tallest moss in the world is :

 
 
 
 

630. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

632. Funaria are commonly found :

 
 
 
 

633. Lichen show :

 
 
 
 

634. Bacteria are placed under:

 
 
 
 

635. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

637. The central part of Funaria axis is :

 
 
 
 

638. Which organisms are the oldest life forms?

 
 
 
 

639. In tracheophyta:

 
 
 
 

640. Some biologists have used the term Mycetozoa for:

 
 
 
 

641. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. Facultative parasite is:

 
 
 
 

646. The sporophyte of Riccia is :

 
 
 
 

647. The chromosomal number in:

 
 
 
 

648. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

651. The most important property of yeast is:

 
 
 
 

652. Seeds are characteristically found in :

 
 
 
 

653. Common phycobiont in a lichen is :

 
 
 
 

654. Which of the following applies to Selaginella?

 
 
 
 

655. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

657. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

659. Which is an edible fungus?

 
 
 
 

660. Viroids have:

 
 
 
 

661. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

663. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

666. The Rhizopus is:

 
 
 
 

667. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

669. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

671. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

672. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

679. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

682. In Pteris, the archegonia are present:

 
 
 
 

683. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

685. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

687. The mode of nutrition of bacteria is usually:

 
 
 
 

688. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

690. Most of the lichens are composed of :

 
 
 
 

691. Early blight of potato is caused by:

 
 
 
 

692. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

693. Funaria is :

 
 
 
 

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

 
 
 
 

695. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

697. The plants of Funaria grow :

 
 
 
 

698. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

700. Red rot of sugarcane is caused by :

 
 
 
 

701. Which part of Riccia bears nurse cells?

 
 
 
 

702. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

708. Citrus canker is caused by :

 
 
 
 

709. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

712. Select the wrong statement:

 
 
 
 

713. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

715. Number of capsomeres forming capsid of TMV is:

 
 
 
 

716. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

718. The smallest bacterium is:

 
 
 
 

719. The fern plant is:

 
 
 
 

720. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

722. Small epidermal swellings due to infection are called :

 
 
 
 

723. Photoautotrophic bacteria have:

 
 
 
 

724. Pasteur is famous for his:

 
 
 
 

725. Which of the following are absent in Mycoplasma?

 
 
 
 

726. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

730. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

732. Pasteurized milk is:

 
 
 
 

733. Azolla and Salvinia both are:

 
 
 
 

734. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

736. Ovary is absent in :

 
 
 
 

737. Oswald Tippo’s classification was based on :

 
 
 
 

738. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

743. Usually, bacteria reproduce by:

 
 
 
 

744. Which is the nuclear material in bacteria?

 
 
 
 

745. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

747. 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:

 
 
 
 

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

 
 
 
 

749. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. Methanogens belong to:

 
 
 
 

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

 
 
 
 

754. The development of sporangium in Selaginella is:

 
 
 
 

755. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

757. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

760. Zoogametes are not found in:

 
 
 
 

761. Enzymes are absent in:

 
 
 
 

762. In moss, peristomial teeth are:

 
 
 
 

763. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

765. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. Cycas plant in appearance resembles :

 
 
 
 

770. Mycoplasma contains:

 
 
 
 

771. To which country Antony van Leeuwenhoek belong?

 
 
 
 

772. Ethylene oxide is widely used to:

 
 
 
 

773. Vascular cryptogam is the term used for :

 
 
 
 

774. The gametophyte of moss has distinct phases :

 
 
 
 

775. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

777. Heterotrichous habit means :

 
 
 
 

778. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

780. Cycas revoluta is widely grown as :

 
 
 
 

781. Mycoplasma is different from bacteria due to:

 
 
 
 

782.

783. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

785. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

787. True sexuality is not found in:

 
 
 
 

788. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

796. Cycas is:

 
 
 
 

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

 
 
 
 

798. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

803. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

806. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

807. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

810. Bacteria which are spherical are called:

 
 
 
 

811. Late blight of potato is caused by :

 
 
 
 

812. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

818. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

821. Pneumonia is caused by:

 
 
 
 

822. Parmelia belongs to :

 
 
 
 

823. Gram stain is used to:

 
 
 
 

824. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

827. Liverworts are included in :

 
 
 
 

828. Winged pollen grains are found in :

 
 
 
 

829. Mycoplasma are:

 
 
 
 

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

 
 
 
 

831. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

833. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

835. In Funaria :

 
 
 
 

836. Acetobacter is useful in:

 
 
 
 

837. The truncated cone of HIV consists of:

 
 
 
 

838. Little leaf disease of Brinjal is caused by:

 
 
 
 

839. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

841. The similarity between cyanobacteria and bacteria:

 
 
 
 

842. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

845. The group algae possesses representatives belonging to kingdom:

 
 
 
 

846. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

848. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

850. Virus and bacteriophage are made-up of:

 
 
 
 

851. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

853. Ovules are not found enclosed in ovary in :

 
 
 
 

854. What are plasmids?

 
 
 
 

855. The leaf of Cycas shows:

 
 
 
 

856. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

860. Asexual reproductive body of Volvox is called:

 
 
 
 

861. Linnaeus is credited with introducing:

 
 
 
 

862. The vascular bundles of Cycas stem are :

 
 
 
 

863. An Hfr bacterium is one that contains:

 
 
 
 

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