Quiz_Random

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

 
 
 
 

2. Where does meiosis occur in yeast?

 
 
 
 

3. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

5. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

7. Winged seeds are found in :

 
 
 
 

8. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

10. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

12. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Nannandria are:

 
 
 
 

16. Interferon is a:

 
 
 
 

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

 
 
 
 

18. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

24. The chromosomal number in:

 
 
 
 

25. The antibiotic is obtained from:

 
 
 
 

26. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

28.

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

 
 
 
 

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

 
 
 
 

31. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

33. The nucleus of bacteria is:

 
 
 
 

34. Which organisms are the oldest life forms?

 
 
 
 

35. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Cycas is different from mango in :

 
 
 
 

43. Which is an edible fungus?

 
 
 
 

44. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

46. Which is a gametophytic tissue?

 
 
 
 

47. Which statement is wrong in regard to bacteria?

 
 
 
 

48. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Fruits are not found in:

 
 
 
 

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

 
 
 
 

58. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

65. The term stele was given by:

 
 
 
 

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

 
 
 
 

67. Most common type of conjugation in Spirogyra is :

 
 
 
 

68. Ectocarpus produces:

 
 
 
 

69. The chief characteristic of bryophyta is that :

 
 
 
 

70. Lichens show :

 
 
 
 

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

 
 
 
 

72. Bacteriophage consists of:

 
 
 
 

73. The truncated cone of HIV consists of:

 
 
 
 

74. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

76. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

81. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

83. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

88. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

93. Leaf spot of groundnut is caused by :

 
 
 
 

94. Bacteriophages have been used as:

 
 
 
 

95. Which of the following are included in Tracheophyta?

 
 
 
 

96. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

97. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

100. The smallest unit of classification is:

 
 
 
 

101. Who discovered streptomycin?

 
 
 
 

102. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

104. Cycas is:

 
 
 
 

105. Which one of the following is a monocot?

 
 
 
 

106.

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

 
 
 
 

108. Acetobacter is useful in:

 
 
 
 

109. Most primitive group of vascular plants are:

 
 
 
 

110. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

114. Which among the following is a shrub?

 
 
 
 

115. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. Proembryo in Pinus is :

 
 
 
 

119. What is a vector?

 
 
 
 

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

 
 
 
 

121. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

122. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

124. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. Lichen show :

 
 
 
 

129. Cryptogams include :

 
 
 
 

130. Club moss is the common name of :

 
 
 
 

131. The chloroplast in Ulothrix is :

 
 
 
 

132. Pollination in Pinus is :

 
 
 
 

133. In tracheophyta:

 
 
 
 

134. The disease symptom necrosis refers to :

 
 
 
 

135. A gill of Agaricus:

 
 
 
 

136. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

140. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

143. Some biologists have used the term Mycetozoa for:

 
 
 
 

144. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

146. Cyanophage is a virus that attacks:

 
 
 
 

147. The spermatozoids of Cycas are :

 
 
 
 

148. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

150. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

153. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. Soil fertility is lost by the activities of:

 
 
 
 

158. Viruses are commonly transmitted in plants through:

 
 
 
 

159. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. Cycas is similar to a mustard plant :

 
 
 
 

163. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

164. In Gymnosperms endosperm is a:

 
 
 
 

165. The prothallus of fern is:

 
 
 
 

166. The sporangia of Selaginella are attached:

 
 
 
 

167. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

171. Which have the largest antherozoid?

 
 
 
 

172. Bryophyta have been placed in cryptogams because:

 
 
 
 

173. Pythium debaryanum is the causative agent of:

 
 
 
 

174. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

176. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

178. The zoospores of Ulothrix are :

 
 
 
 

179. Red rot of sugarcane is caused by :

 
 
 
 

180. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

183. Citrus canker is caused by:

 
 
 
 

184. The prothallus of fern represents the plant:

 
 
 
 

185. What is mycorrhiza?

 
 
 
 

186. Most primitive kind of flower is represented by:

 
 
 
 

187. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

189. Spermatophyta are characterized by producing:

 
 
 
 

190. What is special feature of fern archegonia?

 
 
 
 

191. Clostridium can:

 
 
 
 

192. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

195. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

197. Funaria is :

 
 
 
 

198. Centric discoid form of diatom is:

 
 
 
 

199. Iodine is obtained from :

 
 
 
 

200. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. How is moss different from fern?

 
 
 
 

207. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

209. The Rhizopus gametes are formed in:

 
 
 
 

210. Ovules are not found enclosed in ovary in :

 
 
 
 

211. The group algae possesses representatives belonging to kingdom:

 
 
 
 

212. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

214. Botulism is a:

 
 
 
 

215. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

217. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

219. LSD is:

 
 
 
 

220. In angiosperms double fertilization represents:

 
 
 
 

221. The photosynthetic protists are:

 
 
 
 

222. Climbers are found in genus:

 
 
 
 

223. Chemosynthetic bacteria are:

 
 
 
 

224. Germ theory of disease was proposed by:

 
 
 
 

225. Redness of red sea is due to :

 
 
 
 

226. Sporophyte of fern is:

 
 
 
 

227. Facultative parasite is:

 
 
 
 

228. Sometimes the bacterial cell is enclosed in:

 
 
 
 

229. Which of the following is sago palm?

 
 
 
 

230. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

233. In Cycas:

 
 
 
 

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

 
 
 
 

235. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

237. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

241. Placenta in fern is:

 
 
 
 

242. In moss, peristomial teeth are:

 
 
 
 

243. Antibiotic has been extracted from :

 
 
 
 

244. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

247. The DNA of E coli is:

 
 
 
 

248. The gametophyte of fern bears:

 
 
 
 

249. Citrus canker is caused by :

 
 
 
 

250. In Funaria, calyptra is derived from :

 
 
 
 

251. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

252. Funaria is a Bryophyta because :

 
 
 
 

253. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

255. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

258. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

260. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

264. Which condition is found in Cycas?

 
 
 
 

265. The source of litmus is :

 
 
 
 

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

 
 
 
 

267. In a diplontic life cycle:

 
 
 
 

268. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

270. Sexual reproduction in Rhizopus is by:

 
 
 
 

271. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

273. The phloem of vascular system of Cycas is :

 
 
 
 

274. Banana bunchy top is caused by :

 
 
 
 

275. The middle sterile part of capsule is called:

 
 
 
 

276. The tree fern is:

 
 
 
 

277. Which of the following statements is not correct?

 
 
 
 

278. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

280. To which class Riccia belongs :

 
 
 
 

281. Who discovered heterothallism in fungi?

 
 
 
 

282. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

283. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

287. Absorptive nutrition is:

 
 
 
 

288. In moss, sporogenous tissue arises from:

 
 
 
 

289. Cellular slime mold is:

 
 
 
 

290. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

292. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

295. The order generally ends with:

 
 
 
 

296. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

298.

299. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

301. Generic name of mango is:

 
 
 
 

302. Azolla and Salvinia both are:

 
 
 
 

303. Which one of the following statement is wrong?

 
 
 
 

304. Nitrogen-fixing bacteria may be located:

 
 
 
 

305. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. Bacteria are considered to be plants because they:

 
 
 
 

310. Economic importance of bacteria lies in their being:

 
 
 
 

311. Bryophyta have a special character from other plants:

 
 
 
 

312. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

314. The sori in Dryopteris are found on:

 
 
 
 

315. Viruses have:

 
 
 
 

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

 
 
 
 

317. Infective part of virus was discovered by:

 
 
 
 

318. Psilotum is:

 
 
 
 

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

 
 
 
 

320. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

323. In Pteris, the roots are:

 
 
 
 

324. Bacteria which are spherical are called:

 
 
 
 

325. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

327. Why is Cycas called a living fossil?

 
 
 
 

328. Aflatoxin is produced by:

 
 
 
 

329. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

333. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

341. Early blight of potato is caused by:

 
 
 
 

342. 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:

 
 
 
 

343. Mycoplasma was discovered by:

 
 
 
 

344. Diploxylic vascular bundles are found in:

 
 
 
 

345. The male gametes of Pinus are :

 
 
 
 

346. The leaf of Cycas shows:

 
 
 
 

347. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

350. Lichens are the indicator of pollution :

 
 
 
 

351. Longest known virus is:

 
 
 
 

352. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

354. Cycas revoluta is widely grown as :

 
 
 
 

355. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

357. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

362. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

364. Water-net is the name of:

 
 
 
 

365. The disease apple scab is caused by:

 
 
 
 

366. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

369. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

371. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

373. Gram stain is used to:

 
 
 
 

374. E coli is a:

 
 
 
 

375. The megaspore of Selaginella on germination produces:

 
 
 
 

376. Mycoplasma are:

 
 
 
 

377. The first to isolate a plant virus was:

 
 
 
 

378. Rhizopus belongs to:

 
 
 
 

379. Which is the nuclear material in bacteria?

 
 
 
 

380. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

382. Red rot of sugarcane is caused by :

 
 
 
 

383. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

386. Selaginella differs from Moss in having:

 
 
 
 

387. Bentham and Hooker placed gymnosperms:

 
 
 
 

388. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

390. Ovules are not found enclosed in ovary of:

 
 
 
 

391. Male gametes in Dryopteris are:

 
 
 
 

392. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

395. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

397. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

399. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

402. To which country Antony van Leeuwenhoek belong?

 
 
 
 

403. Pasteurized milk is:

 
 
 
 

404. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

406. Late blight of potato is caused by :

 
 
 
 

407. Pinus is:

 
 
 
 

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

 
 
 
 

409. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Gymnosperms could also be called as:

 
 
 
 

414. The lambda phase is a:

 
 
 
 

415. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

419. In Cycas which structure is equivalent to stamen?

 
 
 
 

420. Total parasites belong to:

 
 
 
 

421. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

426. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

430.

 

431. Heterocysts are found in :

 
 
 
 

432. All algae have:

 
 
 
 

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

 
 
 
 

434. Methanogens belong to:

 
 
 
 

435. Black rust of wheat is caused by:

 
 
 
 

436. The root nodules of leguminous plants contain:

 
 
 
 

437. Vascular cryptogams is the term used for:

 
 
 
 

438. The genetic material of poxvirus is:

 
 
 
 

439. In Pteris, the archegonia are present:

 
 
 
 

440. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

442. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

444. Rhizopus and yeast are usually:

 
 
 
 

445. Select the wrong statement:

 
 
 
 

446. Downy mildew disease is caused by :

 
 
 
 

447. In Cycas microsporangia are borne on:

 
 
 
 

448. Parmelia belongs to :

 
 
 
 

449. Diphtheria is caused by:

 
 
 
 

450. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

452. Bacteria are placed under:

 
 
 
 

453. Who named prion?

 
 
 
 

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

 
 
 
 

455. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

458. The zygospore in Rhizopus on germination forms:

 
 
 
 

459. Water-borne bacterial diseases are:

 
 
 
 

460. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

462. Indusium in Dryopteris is:

 
 
 
 

463. 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:

 
 
 
 

464. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

466. Which of the following is a parasitic algae?

 
 
 
 

467. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

469. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

470. In Herpes virus DNA is:

 
 
 
 

471. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

473. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

475. Which group of algae have an incipient nucleus?

 
 
 
 

476. Roots are absent in :

 
 
 
 

477. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

482. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

484. The rhizoids of Funaria are :

 
 
 
 

485. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

487. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

489. Desired type of Cycas can be grown by:

 
 
 
 

490. The fungi are usually:

 
 
 
 

491. Who discovered cyanophages?

 
 
 
 

492. Which class of Protozoa includes all parasitic forms?

 
 
 
 

493. Bacteria differ from viruses in being sensitive to:

 
 
 
 

494. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

497. Saccharomyces ludwigii ascus produces:

 
 
 
 

498. The largest alga is:

 
 
 
 

499. Funaria is :

 
 
 
 

500. What are plasmids?

 
 
 
 

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

 
 
 
 

502. Vegetative reproduction in Cycas is by means of :

 
 
 
 

503. Majority of lichens are :

 
 
 
 

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

 
 
 
 

505. The role of meiosis is for:

 
 
 
 

506. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

508. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

511. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

517. What is the role of nitrifying bacteria?

 
 
 
 

518. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. Pollination drop is:

 
 
 
 

522. The coralloid roots are :

 
 
 
 

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

 
 
 
 

524. Which of the following is a heterosporous pteridophyte?

 
 
 
 

525. Which of the following statement is correct?

 
 
 
 

526. Who among the following discovered virus?

 
 
 
 

527. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

529. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. 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?

 
 
 
 

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

 
 
 
 

534. Helotism word is used for the symbiosis between :

 
 
 
 

535. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

537. 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:

 
 
 
 

538. Multicellular and jacketed sex organs are found in :

 
 
 
 

539. Special feature of pollen grains of Pinus is :

 
 
 
 

540. Fairy ring is the name given to:

 
 
 
 

541. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

543. Black rust of wheat is caused by:

 
 
 
 

544. Metulae are found in:

 
 
 
 

545. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

547. Ovary is absent in :

 
 
 
 

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

 
 
 
 

549. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

551. Select the wrong statement:

 
 
 
 

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

 
 
 
 

553. In Funaria :

 
 
 
 

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

 
 
 
 

555. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

559. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. The ascus of yeast contains:

 
 
 
 

563. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

566. Lichens form the first community in

 
 
 
 

567. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

569. Which is an exception to cell theory?

 
 
 
 

570. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

571. In moss, calyptra is formed from:

 
 
 
 

572. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

574. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

575. Usually, bacteria reproduce by:

 
 
 
 

576. Oswald Tippo’s classification was based on :

 
 
 
 

577. Isomorphic type alternation of generation is found in:

 
 
 
 

578. In moss, conducting tissue is made up of

 
 
 
 

579. Kuru, a human disease is caused by:

 
 
 
 

580. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

582. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

585. Rhizoids of Riccia are :

 
 
 
 

586. Water bloom is generally caused by :

 
 
 
 

587. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

589. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

591. Fern prothallus is:

 
 
 
 

592. Select the correct statement: (NEET 2016)

 
 
 
 

593. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

595. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

598. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. Which of the following shows heterotrichous habit?

 
 
 
 

602. Azolla growing in paddy fields helps in:

 
 
 
 

603. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

605. Pteridophyta are also called:

 
 
 
 

606. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

608. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

610. The fungi used as food are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

613. Milk is converted to curd by:

 
 
 
 

614. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

616. Some bacteria cannot be killed easily because of:

 
 
 
 

617. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

619. Most primitive embryophytes are placed in :

 
 
 
 

620. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

623. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

625. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

628. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

630. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

633. The vascular bundles of Cycas stem are :

 
 
 
 

634. Pasteurization of milk involves heating for:

 
 
 
 

635. The upper region of moss capsule is :

 
 
 
 

636. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

642. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

643. Circular DNA is seen in:

 
 
 
 

644. Vascular cryptogam is the term used for :

 
 
 
 

645. Fern prothallus produces:

 
 
 
 

646. Which is not found in bacteria?

 
 
 
 

647. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

649. Embryophyta includes:

 
 
 
 

650. In Selaginella, the microsporangia are:

 
 
 
 

651. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

654. Sporophyte of Funaria is :

 
 
 
 

655. Funaria can be differentiated from Cycas :

 
 
 
 

656. The fungi are mostly:

 
 
 
 

657. Amoeba is a member of the phylum:

 
 
 
 

658. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

660. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

663. The plants of Funaria grow :

 
 
 
 

664. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

668. In a bacteriophage, DNA is present in:

 
 
 
 

669. Embryophyta includes :

 
 
 
 

670. Pinus gerardiana is :

 
 
 
 

671. Number of capsomeres forming capsid of TMV is:

 
 
 
 

672. True sexuality is not found in:

 
 
 
 

673. Halophiles are the bacteria that require for growth:

 
 
 
 

674. Meristele of fern is:

 
 
 
 

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

 
 
 
 

676. Mycoplasma is different from bacteria due to:

 
 
 
 

677. Asexual reproductive body of Volvox is called:

 
 
 
 

678. Enteric bacteria are those bacteria that live:

 
 
 
 

679. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

681. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

683. The most important property of yeast is:

 
 
 
 

684. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

687. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

693. Pythium debaryanum is the causative agent of:

 
 
 
 

694. What is streptomycin?

 
 
 
 

695. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

697. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

700. Nitrifying bacteria play an important role by converting:

 
 
 
 

701. Spores of which plants have chloroplast:

 
 
 
 

702. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

704. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

708. Most primitive embryophytes are placed in:

 
 
 
 

709. Liverworts are included in :

 
 
 
 

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

 
 
 
 

711. Which is absent from the xylem of Cycas?

 
 
 
 

712. Mucilaginous canals in Cycas are found in :

 
 
 
 

713. The stele of Dryopteris is a:

 
 
 
 

714. Little leaf disease of Brinjal is caused by:

 
 
 
 

715. Winged pollen grains are found in :

 
 
 
 

716. Mostly type of zygospore in Ulothrix is:

 
 
 
 

717. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

721. The leafy fern plant represents the:

 
 
 
 

722. White rust of crucifers is caused by:

 
 
 
 

723. Fern plants are:

 
 
 
 

724. Pseudomycelium is found in:

 
 
 
 

725. Virion refers to:

 
 
 
 

726. In Gymnocarpeae the fruiting body is :

 
 
 
 

727. Most resistant spore in bacteria is:

 
 
 
 

728. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

730. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

732. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

734. Polystelic condition is found in:

 
 
 
 

735. Reproduction in Cycas takes place by :

 
 
 
 

736. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

738. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

741. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

743. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

744. Which of the following lichens is harmful?

 
 
 
 

745. Ovary is absent in:

 
 
 
 

746. Which is a tautonym?

 
 
 
 

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

 
 
 
 

748. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

750. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Which causes red tide?

 
 
 
 

755. Which of the following applies to Selaginella?

 
 
 
 

756. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

760. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. Standard size of a herbarium sheet is:

 
 
 
 

770. Most of the lichens are composed of :

 
 
 
 

771. The gametophyte produced by apospory is :

 
 
 
 

772. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

775. Fertility of the soil is increased by:

 
 
 
 

776. Plasmids are:

 
 
 
 

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

 
 
 
 

778. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

780. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

782. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

785. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

789. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

796. 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:

 
 
 
 

797. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

799. Lichens reproduce by :

 
 
 
 

800. Green plants are classified as :

 
 
 
 

801. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

803. Typhoid in man is caused by:

 
 
 
 

804. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

806. Yeast belongs to class:

 
 
 
 

807. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

811. 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:

 
 
 
 

812. Lichens are indicators of :

 
 
 
 

813. Each chloroplast in Spirogyra bears :

 
 
 
 

814. The tallest moss in the world is :

 
 
 
 

815. Protistan algae obtain their food as:

 
 
 
 

816. Viroids have:

 
 
 
 

817. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

819. The fern plant is:

 
 
 
 

820. Ulothrix produces :

 
 
 
 

821. Protozoans are considered animals because these are:

 
 
 
 

822. The archegonia of Selaginella are differentiated by:

 
 
 
 

823. 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?

 
 
 
 

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

 
 
 
 

825. Linnaeus is credited with introducing:

 
 
 
 

826. Seeds are characteristically found in :

 
 
 
 

827. Which of the following have algal zone?

 
 
 
 

828. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

832. Discovery of penicillin was based on:

 
 
 
 

833. Cap cells are found in the filament of:

 
 
 
 

834. Maximum diversity of life forms occurs in :

 
 
 
 

835. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

836. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

841. Etiology includes the study of :

 
 
 
 

842. The leaves of Funaria are :

 
 
 
 

843. Club moss and Peat moss belong to:

 
 
 
 

844. The chief characteristic of class Ascomycetes is:

 
 
 
 

845. In moss, sporophyte is formed on:

 
 
 
 

846. John Hutchinson divided dicots into two divisions:

 
 
 
 

847. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

849. All protozoans possess:

 
 
 
 

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

 
 
 
 

851. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

853. Antibiotics cure the disease by:

 
 
 
 

854. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

856. Small epidermal swellings due to infection are called :

 
 
 
 

857. Penicillin was discovered by:

 
 
 
 

858. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

860. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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