Quiz_Random

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

 
 
 
 

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

 
 
 
 

3. Coenogamete is found in:

 
 
 
 

4. The zoospores of Ulothrix are :

 
 
 
 

5. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

7. Where does meiosis occur in yeast?

 
 
 
 

8. Smut of maize is caused by :

 
 
 
 

9. The rhizoids of Funaria are :

 
 
 
 

10. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

12. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

14. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

16. Ergot is obtained from :

 
 
 
 

17. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

19. Which of the following is a heterosporous pteridophyte?

 
 
 
 

20. Asexual reproductive body of Volvox is called:

 
 
 
 

21. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

23. The sporangiophores in Rhizopus are:

 
 
 
 

24. Viruses are considered to be:

 
 
 
 

25. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

27. Which of the following statement is correct?

 
 
 
 

28. Which of the following is true for viruses?

 
 
 
 

29. Which lichen is called Reindeer moss?

 
 
 
 

30. Which one of the following statement is wrong?

 
 
 
 

31. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

32. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. The leaves of Funaria are :

 
 
 
 

37. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

39. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

41. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

43. E coli is a:

 
 
 
 

44. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

46. Protists which are diploid reproduce sexually by:

 
 
 
 

47. Cryptogams include :

 
 
 
 

48. Bacteria are placed under:

 
 
 
 

49. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

51. Lichens form the first community in

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

56. The root nodules of leguminous plants contain:

 
 
 
 

57. Virion refers to:

 
 
 
 

58. Which organisms are the oldest life forms?

 
 
 
 

59. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

61. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Leprosy is caused by:

 
 
 
 

65. The sori in Dryopteris are found on:

 
 
 
 

66. Most primitive group of vascular plants are:

 
 
 
 

67. Azolla growing in paddy fields helps in:

 
 
 
 

68. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. Enzymes are absent in:

 
 
 
 

73. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

75. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

77. Pasteur is famous for his:

 
 
 
 

78. Which is an edible fungus?

 
 
 
 

79. 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:

 
 
 
 

80. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. The largest alga is:

 
 
 
 

84. Sexual reproduction in Rhizopus is by:

 
 
 
 

85.

86. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

88. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

90. Spermatophyta are characterized by producing:

 
 
 
 

91. Most primitive kind of flower is represented by:

 
 
 
 

92. Cyathia is characterized by:

 
 
 
 

93. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

95. Economic importance of bacteria lies in their being:

 
 
 
 

96. Ulothrix produces :

 
 
 
 

97. Red rot of sugarcane is caused by :

 
 
 
 

98. Generic name of mango is:

 
 
 
 

99. Funaria is a Bryophyta because :

 
 
 
 

100. Sexual reproduction of lichen is due to :

 
 
 
 

101. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

103. The zygospore in Rhizopus on germination forms:

 
 
 
 

104. The prothallus of fern represents the plant:

 
 
 
 

105. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

107. Cell walls of Gram-positive bacteria contain:

 
 
 
 

108. Selaginella differs from Moss in having:

 
 
 
 

109. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

114. The chief characteristic of class Ascomycetes is:

 
 
 
 

115. Meristele of fern is:

 
 
 
 

116. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

118. Clostridium can:

 
 
 
 

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

 
 
 
 

120. Small epidermal swellings due to infection are called :

 
 
 
 

121. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

123. The ascus of yeast contains:

 
 
 
 

124. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

126. The archegonia in Selaginella develop on:

 
 
 
 

127. The first to isolate a plant virus was:

 
 
 
 

128. Number of capsomeres forming capsid of TMV is:

 
 
 
 

129. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

130. Endemic plants are characterised by their:

 
 
 
 

131. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

133. Synzoospore is produced in:

 
 
 
 

134. What is a vector?

 
 
 
 

135. Roots are absent in :

 
 
 
 

136. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

138. Spirogyra differs from moss protonema in having :

 
 
 
 

139. Aflatoxin is produced as a product in :

 
 
 
 

140. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

142. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

144. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

146. Embryo formation is not known in :

 
 
 
 

147. Which of the following does not contain chlorophyll?

 
 
 
 

148. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

150. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

152. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

154. The nucleus of bacteria is:

 
 
 
 

155. The development of sporangium in Selaginella is:

 
 
 
 

156. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

159. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

161. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

163. Yeast grows more rapidly in:

 
 
 
 

164. The lambda phase is a:

 
 
 
 

165. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. Club moss is the common name of :

 
 
 
 

169. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

171. All protozoans possess:

 
 
 
 

172. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

174. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

177. Diphtheria is caused by:

 
 
 
 

178. Usually, bacteria reproduce by:

 
 
 
 

179. The spur of Pinus roxburghii has :

 
 
 
 

180. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

183. Most resistant spore in bacteria is:

 
 
 
 

184. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

186. 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:

 
 
 
 

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

 
 
 
 

188. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

192. Late blight of potato is caused by :

 
 
 
 

193. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

195. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

197. Aflatoxin is produced by:

 
 
 
 

198. Select the wrong statement:

 
 
 
 

199. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

201. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. The gametophyte of fern bears:

 
 
 
 

205. Which have the largest antherozoid?

 
 
 
 

206. Winged pollen grains are found in :

 
 
 
 

207. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

209. Multicellular and jacketed sex organs are found in :

 
 
 
 

210. Ectocarpus produces:

 
 
 
 

211. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

213. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. Isomorphic type alternation of generation is found in:

 
 
 
 

217. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

219. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

221.

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

 
 
 
 

223. The sporangium of fern contains nearly:

 
 
 
 

224. Funaria is :

 
 
 
 

225. The Rhizopus is:

 
 
 
 

226. Cycas is :

 
 
 
 

227. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

229. In moss, conducting tissue is made up of

 
 
 
 

230. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

232. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

234. Wine turns sour because of:

 
 
 
 

235. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

237. In Cycas the fertilization is:

 
 
 
 

238. Most of the lichens are composed of :

 
 
 
 

239. Ovules are not found enclosed in ovary in :

 
 
 
 

240. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

242. Mucilaginous canals in Cycas are found in :

 
 
 
 

243. Embryophyta includes:

 
 
 
 

244. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

246. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

248. Mycoplasma contains:

 
 
 
 

249. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

251. In moss, calyptra is formed from:

 
 
 
 

252. Streptomycin is obtained from:

 
 
 
 

253. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. Centric discoid form of diatom is:

 
 
 
 

257. Siphonogamy is found in:

 
 
 
 

258. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

260. The sporophyte of Riccia is represented by :

 
 
 
 

261. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

263. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

266. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

269. In angiosperms double fertilization represents:

 
 
 
 

270. Placenta in fern is:

 
 
 
 

271. Lichens are ecologically important because :

 
 
 
 

272. Choose the correct statement about Spirogyra:

 
 
 
 

273. All algae have:

 
 
 
 

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

 
 
 
 

275. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

277. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

279. The upper region of moss capsule is :

 
 
 
 

280. Pteridophytes are also known as :

 
 
 
 

281. Facultative saprophyte is:

 
 
 
 

282. Green plants are classified as :

 
 
 
 

283. Which of the following are included in Tracheophyta?

 
 
 
 

284. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

287. The photosynthetic protists are:

 
 
 
 

288. Some diseases caused by bacteria are:

 
 
 
 

289. Pythium debaryanum is the causative agent of:

 
 
 
 

290. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

292. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

294. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

298. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

302. In moss, peristomial teeth are:

 
 
 
 

303. Yeast is a source of:

 
 
 
 

304. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

306. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. Vascular cryptogam is the term used for :

 
 
 
 

310. Bacteria are considered to be plants because they:

 
 
 
 

311. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

313. Winged seeds are found in :

 
 
 
 

314. Amoeba is a member of the phylum:

 
 
 
 

315. The chloroplast in Ulothrix is :

 
 
 
 

316. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

318. Oswald Tippo’s classification was based on :

 
 
 
 

319. Pteridophyta are also called:

 
 
 
 

320. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

322. Red rot of sugarcane is caused by :

 
 
 
 

323. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. Select the wrong statement:

 
 
 
 

327. Fruits are not found in:

 
 
 
 

328. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

331. The fungi that grow on wood are called:

 
 
 
 

332. Metulae are found in:

 
 
 
 

333. To which class Riccia belongs :

 
 
 
 

334. 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?

 
 
 
 

335. An alga which is rich in proteins:

 
 
 
 

336. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

339. Indusium in Dryopteris is:

 
 
 
 

340. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

344. Disease resistant plant varieties can be produced by :

 
 
 
 

345. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

347. Some bacteria cannot be killed easily because of:

 
 
 
 

348. Spermatophyta are characterized by producing:

 
 
 
 

349. Discovery of penicillin was based on:

 
 
 
 

350. The microsporophylls on the cone of Cycas are :

 
 
 
 

351. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

353. Which of the following is sago palm?

 
 
 
 

354. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

360. Most of the algae are :

 
 
 
 

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

 
 
 
 

362. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

365. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

368. Plasmids are:

 
 
 
 

369. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

372. What are plasmids?

 
 
 
 

373. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

376. How is moss different from fern?

 
 
 
 

377. White rust of crucifers is caused by:

 
 
 
 

378. Botulinum toxin effects:

 
 
 
 

379. Which is a gametophytic tissue?

 
 
 
 

380. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

382. Green plants are classified as:

 
 
 
 

383. Little leaf disease of Brinjal is caused by:

 
 
 
 

384. The truncated cone of HIV consists of:

 
 
 
 

385. Which among the following is a shrub?

 
 
 
 

386. The disease symptom necrosis refers to :

 
 
 
 

387. 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:

 
 
 
 

388. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

389. Water-borne bacterial diseases are:

 
 
 
 

390. Protozoans are considered animals because these are:

 
 
 
 

391. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

393. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

395. Fruits are not found in Cycas because:

 
 
 
 

396. Water bloom is generally caused by :

 
 
 
 

397. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

399. The group algae possesses representatives belonging to kingdom:

 
 
 
 

400. Fern prothallus is:

 
 
 
 

401. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

403. Total parasites belong to:

 
 
 
 

404. Psilotum is:

 
 
 
 

405. What is streptomycin?

 
 
 
 

406. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

408. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

409. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

411. Gram stain is used to:

 
 
 
 

412. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

415. Maximum diversity of life forms occurs in :

 
 
 
 

416. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

417. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

425. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

429. The vascular bundles of Cycas stem are :

 
 
 
 

430. Cocci types of bacteria are:

 
 
 
 

431. Proembryo in Pinus is :

 
 
 
 

432. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

434. In Selaginella, the microsporangia are:

 
 
 
 

435. Yeast belongs to class:

 
 
 
 

436. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

439. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

442. Sporophyte of Funaria is :

 
 
 
 

443. Most primitive embryophytes are placed in:

 
 
 
 

444. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

447. 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?

 
 
 
 

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

 
 
 
 

449. Who named prion?

 
 
 
 

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

 
 
 
 

451. Heterocysts are found in :

 
 
 
 

452. In Cycas:

 
 
 
 

453. Botulism is a:

 
 
 
 

454. Tautonyms are illegitimate in:

 
 
 
 

455. The seedless plants which possess vascular tissues are:

 
 
 
 

456. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

458. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

463. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

465. Lichens reproduce by :

 
 
 
 

466. Who discovered streptomycin?

 
 
 
 

467. Sometimes the bacterial cell is enclosed in:

 
 
 
 

468. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

470. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

472. In Funaria :

 
 
 
 

473. Woody climbers are known as :

 
 
 
 

474. Longest known virus is:

 
 
 
 

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

 
 
 
 

476. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

479. In Pteris, the roots are:

 
 
 
 

480. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

484. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

487. Mixed cropping helps :

 
 
 
 

488. Pseudomycelium is found in:

 
 
 
 

489. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

493. Standard size of a herbarium sheet is:

 
 
 
 

494. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

497. The alga, Spirogyra are found in :

 
 
 
 

498. What is mycorrhiza?

 
 
 
 

499. The source of litmus is :

 
 
 
 

500. Nitrogen-fixing bacteria may be located:

 
 
 
 

501. Lichens show :

 
 
 
 

502. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

505. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

507. Pinus is:

 
 
 
 

508. Viruses are commonly transmitted in plants through:

 
 
 
 

509. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

510. The fungi used as food are:

 
 
 
 

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

 
 
 
 

512. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

514. The fern plant is:

 
 
 
 

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

 
 
 
 

516. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

518. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. The leaves of Funaria are :

 
 
 
 

522. Lichen show :

 
 
 
 

523. The central part of Funaria axis is :

 
 
 
 

524. Pollination in Cycas takes place by :

 
 
 
 

525. Which is a redwood tree?

 
 
 
 

526. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

527. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

529. Bacteria differ from viruses in being sensitive to:

 
 
 
 

530. Funaria is :

 
 
 
 

531. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

533. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

535. Mycoplasma are sensitive to:

 
 
 
 

536. Polystelic condition is found in:

 
 
 
 

537. Which is not true for Escherichia coli?

 
 
 
 

538. Viroids have:

 
 
 
 

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

 
 
 
 

540. 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?

 
 
 
 

541. In a diplontic life cycle:

 
 
 
 

542. Embryophyta includes :

 
 
 
 

543. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

545. Club moss and Peat moss belong to:

 
 
 
 

546. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Viruses have:

 
 
 
 

550. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

554. In binomial system most of the words are:

 
 
 
 

555. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

557. Which bacteria convert nitrate into nitrogen?

 
 
 
 

558. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

559. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

564. NBG of Lucknow is now named as:

 
 
 
 

565. The fungi are mostly:

 
 
 
 

566. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

570. 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:

 
 
 
 

571. Select the correct statement: (NEET 2016)

 
 
 
 

572. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

574. The leaf of Cycas shows:

 
 
 
 

575. Germination of the seed of Pinus is :

 
 
 
 

576. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

578. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

580. Heterospory and ligulate leaves are a feature of:

 
 
 
 

581. Parmelia belongs to :

 
 
 
 

582. Which fixes atmospheric nitrogen?

 
 
 
 

583. Germ theory of disease was proposed by:

 
 
 
 

584. Smallpox is caused by:

 
 
 
 

585. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

588. Pinus microsporophyll bears:

 
 
 
 

589. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

593. Which is a tautonym?

 
 
 
 

594. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

597. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

599. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

601. Etiology includes the study of :

 
 
 
 

602. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

604. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

611. Soil fertility is lost by the activities of:

 
 
 
 

612. Broad spectrum antibiotic is, which:

 
 
 
 

613. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

615. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

617. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

620. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

621. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

625. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

629. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

632. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

634. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

636. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

639. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

641. Climbers are found in genus:

 
 
 
 

642. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

643. Desired type of Cycas can be grown by:

 
 
 
 

644. The gametophyte produced by apospory is :

 
 
 
 

645. Facultative parasite is:

 
 
 
 

646. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

650. The term stele was given by:

 
 
 
 

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

 
 
 
 

652. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

654. Most primitive embryophytes are placed in :

 
 
 
 

655. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

657. Typhoid in man is caused by:

 
 
 
 

658. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

662. Cycas is:

 
 
 
 

663. Antibiotic has been extracted from :

 
 
 
 

664. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

668. Majority of lichens are :

 
 
 
 

669. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

673. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

676. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

678. Pinus gerardiana is :

 
 
 
 

679. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

681. Fern plants are:

 
 
 
 

682. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

683. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

685. Methanogens belong to:

 
 
 
 

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

 
 
 
 

687. In Cycas which structure is equivalent to stamen?

 
 
 
 

688. Mostly type of zygospore in Ulothrix is:

 
 
 
 

689. The most primitive vascular plants is:

 
 
 
 

690. John Hutchinson divided dicots into two divisions:

 
 
 
 

691. The similarity between cyanobacteria and bacteria:

 
 
 
 

692. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. Who among the following discovered virus?

 
 
 
 

696. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

698. Acetobacter is useful in:

 
 
 
 

699. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

701. Chemosynthetic bacteria are:

 
 
 
 

702. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

707. The leafy fern plant represents the:

 
 
 
 

708. Which one of the following is a monocot?

 
 
 
 

709. Which is a fungicide?

 
 
 
 

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

 
 
 
 

711. Late blight of potato is caused by:

 
 
 
 

712. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

715. In moss, sporogenous tissue arises from:

 
 
 
 

716. Pythium debaryanum is the causative agent of:

 
 
 
 

717. Which of the following is a parasitic algae?

 
 
 
 

718. Seeds are characteristically found in :

 
 
 
 

719.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. . Tapetum develops in:

 
 
 
 

727. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

730. The megasporangium of Selaginella is:

 
 
 
 

731. What is absent in Deuteromycetes?

 
 
 
 

732. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

735. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

737. Red rot of sugarcane is caused by:

 
 
 
 

738. The tree fern is:

 
 
 
 

739.

 

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

 
 
 
 

741. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

743. The young leaves of Cycas have :

 
 
 
 

744. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

746. The role of meiosis is for:

 
 
 
 

747. Pollination drop is:

 
 
 
 

748. Heterotrichous habit means :

 
 
 
 

749. The smallest unit of classification is:

 
 
 
 

750. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

752. Which of the following applies to Selaginella?

 
 
 
 

753. Mycoplasma is different from bacteria due to:

 
 
 
 

754. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

758. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

761. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

762. The lichens growing on rocks are called :

 
 
 
 

763. Which of the following is a monocot?

 
 
 
 

764. In Pteris, the archegonia are present:

 
 
 
 

765. Spores of which plants have chloroplast:

 
 
 
 

766. In dinoflagellates, the two flagella are:

 
 
 
 

767. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

770. Detailed study of bacteriophage was made by:

 
 
 
 

771. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

773. The two conjugating gametangia of Rhizopus are:

 
 
 
 

774. 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:

 
 
 
 

775. Water-net is the name of:

 
 
 
 

776. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

778. What is the role of nitrifying bacteria?

 
 
 
 

779. The chromosomal number in:

 
 
 
 

780. Triple antigen injection or vaccine are for:

 
 
 
 

781. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

783. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

787. What are Cyanobacteria?

 
 
 
 

788. Linnaeus is credited with introducing:

 
 
 
 

789. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. Citrus canker is caused by :

 
 
 
 

793. Bacteria growing on synthetic medium are called:

 
 
 
 

794. Sporophyte of fern is:

 
 
 
 

795. Oswald Tippo’s classification is:

 
 
 
 

796. Which of the following are included in Tracheophyta?

 
 
 
 

797. The chief characteristic of bryophyta is that :

 
 
 
 

798. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

800. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

802. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

810. Kuru, a human disease is caused by:

 
 
 
 

811. Mycoplasma are:

 
 
 
 

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

 
 
 
 

813. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

814. Iodine is obtained from:

 
 
 
 

815. Male gametes in Dryopteris are:

 
 
 
 

816. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

818. Penicillin is obtained from:

 
 
 
 

819. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

822. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

831. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

837. LSD is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

840. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

842. The prothallus of fern is:

 
 
 
 

843. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

845. In Cycas microsporangia are borne on:

 
 
 
 

846. In Gymnocarpeae the fruiting body is :

 
 
 
 

847. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

849. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

853. In a bacteriophage, DNA is present in:

 
 
 
 

854. Which of the following shows heterotrichous habit?

 
 
 
 

855. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

858. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

860. The order generally ends with:

 
 
 
 

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

 
 
 
 

862. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

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