Quiz_Random

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

 
 
 
 

2. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Bacteria differ from viruses in being sensitive to:

 
 
 
 

9. The zygospore in Rhizopus on germination forms:

 
 
 
 

10. Which causes red tide?

 
 
 
 

11. Oswald Tippo’s classification was based on :

 
 
 
 

12. Reproduction in Rhizopus is:

 
 
 
 

13. Heterocysts are found in :

 
 
 
 

14. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Vascular cryptogams is the term used for:

 
 
 
 

25. Iodine is obtained from :

 
 
 
 

26. Typhoid in man is caused by:

 
 
 
 

27. Embryophyta includes:

 
 
 
 

28. Bacteriophage consists of:

 
 
 
 

29. 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:

 
 
 
 

30. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

35. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. The disease apple scab is caused by:

 
 
 
 

39. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

41. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

42. Photosynthetic bacteria have:

 
 
 
 

43. The source of litmus is :

 
 
 
 

44. Bryophyta have been placed in cryptogams because:

 
 
 
 

45. True sexuality is not found in:

 
 
 
 

46. The development of sporangium in Selaginella is:

 
 
 
 

47. Reserve food in Euglena is:

 
 
 
 

48. The seedless plants which possess vascular tissues are:

 
 
 
 

49. Standard size of a herbarium sheet is:

 
 
 
 

50. 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?

 
 
 
 

51. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

53. Metulae are found in:

 
 
 
 

54. Cycas is different from mango in :

 
 
 
 

55. The word “sea weeds” is used for:

 
 
 
 

56. In binomial system most of the words are:

 
 
 
 

57. Which is not true for Escherichia coli?

 
 
 
 

58. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

60. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

62. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

64. The teeth of peristome of Funaria are :

 
 
 
 

65. The archegonia of Selaginella are differentiated by:

 
 
 
 

66. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

68. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Pneumonia is caused by:

 
 
 
 

72. Facultative saprophyte is:

 
 
 
 

73. Bacteria growing on synthetic medium are called:

 
 
 
 

74. Black rust of wheat is caused by:

 
 
 
 

75. Who among the following discovered virus?

 
 
 
 

76. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. Little leaf disease of Brinjal is caused by:

 
 
 
 

81. Who discovered cyanophages?

 
 
 
 

82. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

84. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

86. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

88. The fungi used as food are:

 
 
 
 

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

 
 
 
 

90. Some biologists have used the term Mycetozoa for:

 
 
 
 

91. 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?

 
 
 
 

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

 
 
 
 

93. Bacteria are found everywhere, except:

 
 
 
 

94. Cocci types of bacteria are:

 
 
 
 

95. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

96. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

102. What is absent in Deuteromycetes?

 
 
 
 

103. Most primitive group of vascular plants are:

 
 
 
 

104. The vascular bundles of Cycas stem are :

 
 
 
 

105. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

106. Cap cells are found in the filament of:

 
 
 
 

107. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

110. One of the distinctive feature of Spirogyra is :

 
 
 
 

111. Heterosporous pteridophytes always form:

 
 
 
 

112. Select the wrong statement:

 
 
 
 

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

 
 
 
 

114. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

116. Iodine is obtained from:

 
 
 
 

117. Roots are absent in :

 
 
 
 

118. Reproduction in Cycas takes place by :

 
 
 
 

119. Red rot of sugarcane is caused by :

 
 
 
 

120. The gametophyte of fern bears:

 
 
 
 

121. Saccharomyces is well known for:

 
 
 
 

122. Green plants are classified as:

 
 
 
 

123. The upper region of moss capsule is :

 
 
 
 

124. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. Which is an exception to cell theory?

 
 
 
 

129. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. Tautonyms are illegitimate in:

 
 
 
 

134. The chief characteristic of class Ascomycetes is:

 
 
 
 

135. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. Black rust of wheat is caused by:

 
 
 
 

139. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

142. Rhizophore of Selaginella is:

 
 
 
 

143. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

146. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. Most resistant spore in bacteria is:

 
 
 
 

150. The chloroplast in Ulothrix is :

 
 
 
 

151. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

153. In tracheophyta:

 
 
 
 

154. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

158. Oswald Tippo’s classification is:

 
 
 
 

159. Winged pollen grains are found in :

 
 
 
 

160. The coralloid roots are :

 
 
 
 

161. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

163. Genetic material of TMV is:

 
 
 
 

164. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

165. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. What is special feature of fern archegonia?

 
 
 
 

169. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

171. The gametophyte of fern is as:

 
 
 
 

172. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

177. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

179. Which among the following is a shrub?

 
 
 
 

180. Mycoplasma are sensitive to:

 
 
 
 

181. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

187. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

192. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

196. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

202. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

204. The most important property of yeast is:

 
 
 
 

205. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

208. Bacteria which are spherical are called:

 
 
 
 

209. What is a vector?

 
 
 
 

210. Indusium in Dryopteris is:

 
 
 
 

211. The sporophyte of Riccia is represented by :

 
 
 
 

212. Protists which are diploid reproduce sexually by:

 
 
 
 

213. The alga, Spirogyra are found in :

 
 
 
 

214. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

216. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

218. Azolla growing in paddy fields helps in:

 
 
 
 

219. Which is a tautonym?

 
 
 
 

220. Cyathia is characterized by:

 
 
 
 

221. 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:

 
 
 
 

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

 
 
 
 

223. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

225. Which of the following statements is not correct?

 
 
 
 

226. The tallest moss in the world is :

 
 
 
 

227. Penicillin is obtained from:

 
 
 
 

228. Special feature of pollen grains of Pinus is :

 
 
 
 

229. The archegonia in Selaginella develop on:

 
 
 
 

230. Among the algae kelps are :

 
 
 
 

231. Meiosis in Ulothrix takes place:

 
 
 
 

232. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

238. In Herpes virus DNA is:

 
 
 
 

239. In Funaria, calyptra is derived from :

 
 
 
 

240. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

242. An Hfr bacterium is one that contains:

 
 
 
 

243. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

245. Pinus is:

 
 
 
 

246. Seeds are characteristically found in:

 
 
 
 

247. TMV was isolated in crystalline form by:

 
 
 
 

248. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

251. Red rot of sugarcane is caused by:

 
 
 
 

252. Cycas is :

 
 
 
 

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

 
 
 
 

254. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

256. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

258. Ovary is absent in :

 
 
 
 

259. Chemosynthetic bacteria are:

 
 
 
 

260. Late blight of potato is caused by :

 
 
 
 

261. The term stele was given by:

 
 
 
 

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

 
 
 
 

263. Embryophyta includes :

 
 
 
 

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

 
 
 
 

265. Saccharomyces is used in:

 
 
 
 

266.

267. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

271. In Funaria :

 
 
 
 

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

 
 
 
 

273. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

276. 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:

 
 
 
 

277. 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:

 
 
 
 

278. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

282. Some bacteria cannot be killed easily because of:

 
 
 
 

283. Which organisms are the oldest life forms?

 
 
 
 

284.

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

 
 
 
 

286. Which of the following statement is correct?

 
 
 
 

287. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

289. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

291. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

293. Usually, bacteria reproduce by:

 
 
 
 

294. Pinus gerardiana is :

 
 
 
 

295. Broad spectrum antibiotic is, which:

 
 
 
 

296. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299. The most primitive vascular plants is:

 
 
 
 

300. NBG of Lucknow is now named as:

 
 
 
 

301. Spermatophyta are characterized by producing:

 
 
 
 

302. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

304. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

305. Bentham and Hooker placed gymnosperms:

 
 
 
 

306. Detailed study of bacteriophage was made by:

 
 
 
 

307. The megaspore of Selaginella on germination produces:

 
 
 
 

308. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

310. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

312. Multicellular and jacketed sex organs are found in :

 
 
 
 

313. Mycoplasmas are not viruses in nature because:

 
 
 
 

314. Which bacteria convert nitrate into nitrogen?

 
 
 
 

315. The first to isolate a plant virus was:

 
 
 
 

316. Longest known virus is:

 
 
 
 

317. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

319. Rhizopus and yeast are usually:

 
 
 
 

320. In moss, sporophyte is formed on:

 
 
 
 

321. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

322. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

324. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

331. Most of the algae are :

 
 
 
 

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

 
 
 
 

333. Which of the following is sago palm?

 
 
 
 

334. Proembryo in Pinus is :

 
 
 
 

335. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

338. Placenta in fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

342. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

345. The male gametes of Pinus are :

 
 
 
 

346. The lichens growing on rocks are called :

 
 
 
 

347. Pythium debaryanum is the causative agent of:

 
 
 
 

348. 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?

 
 
 
 

349. Acetobacter is useful in:

 
 
 
 

350. The gametophyte produced by apospory is :

 
 
 
 

351. The roots of Cycas are :

 
 
 
 

352. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. Some diseases caused by bacteria are:

 
 
 
 

356. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

359. Sexual reproduction in Rhizopus is by:

 
 
 
 

360. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

368. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

370. The phloem of vascular system of Cycas is :

 
 
 
 

371. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

374. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

376. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

378. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

382. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

384. Spirogyra represents the :

 
 
 
 

385. The fungi are mostly:

 
 
 
 

386. The ferns are usually found:

 
 
 
 

387. Yeast grows more rapidly in:

 
 
 
 

388. The fern plant is:

 
 
 
 

389. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

391. The sporangium of fern contains nearly:

 
 
 
 

392. Sporophyte of Funaria is :

 
 
 
 

393. The leaves of Funaria are :

 
 
 
 

394. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

396. Funaria is a Bryophyta because :

 
 
 
 

397. Most appropriate word for protozoans is:

 
 
 
 

398. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

400. Heterotrichous habit means :

 
 
 
 

401. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

402. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

404. Cycas is similar to a mustard plant :

 
 
 
 

405. Botulism is a:

 
 
 
 

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

 
 
 
 

407. The central part of Funaria axis is :

 
 
 
 

408. The order generally ends with:

 
 
 
 

409. Embryo formation is not known in :

 
 
 
 

410. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

414. Ovules are not found enclosed in ovary of:

 
 
 
 

415. How a fern differs from a moss?

 
 
 
 

416. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. The fungi are usually:

 
 
 
 

424. Which is not found in bacteria?

 
 
 
 

425. The similarity between cyanobacteria and bacteria:

 
 
 
 

426. Club moss is the common name of :

 
 
 
 

427. The smallest bacterium is:

 
 
 
 

428. The mycelium of Rhizopus is:

 
 
 
 

429. Desired type of Cycas can be grown by:

 
 
 
 

430. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

431. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

433. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

435. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

438. Smallpox is caused by:

 
 
 
 

439. Bacteria are considered to be plants because they:

 
 
 
 

440. Leprosy is caused by:

 
 
 
 

441. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

451. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

453. Photoautotrophic bacteria have:

 
 
 
 

454. Club moss and Peat moss belong to:

 
 
 
 

455. Which is the correct statement about Selaginella?

 
 
 
 

456. Isomorphic type alternation of generation is found in:

 
 
 
 

457. Kuru, a human disease is caused by:

 
 
 
 

458. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

460. Circular DNA is seen in:

 
 
 
 

461. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. In Pteris, the archegonia are present:

 
 
 
 

467. Cryptogams include :

 
 
 
 

468. 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:

 
 
 
 

469. Sporophyte of fern is:

 
 
 
 

470. Water bloom is generally caused by :

 
 
 
 

471. Viruses are commonly transmitted in plants through:

 
 
 
 

472. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

475. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

482. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

483. Which lichen is called Reindeer moss?

 
 
 
 

484. Citrus canker is caused by :

 
 
 
 

485. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. Cleavage polyembryony is found in :

 
 
 
 

489. Cell walls of Gram-positive bacteria contain:

 
 
 
 

490. Mycoplasma is different from bacteria due to:

 
 
 
 

491. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

494. Where does meiosis occur in yeast?

 
 
 
 

495. Endemic plants are characterised by their:

 
 
 
 

496. All archaebacteria lack:

 
 
 
 

497. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

500. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

503. LSD is:

 
 
 
 

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

 
 
 
 

505. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

507. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

509. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

511. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

513. Which fixes atmospheric nitrogen?

 
 
 
 

514. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

516.

517. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

519. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

522. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

524. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

526. Asexual reproductive body of Volvox is called:

 
 
 
 

527. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

529. The Rhizopus is:

 
 
 
 

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

 
 
 
 

531. Methanogens belong to:

 
 
 
 

532. Lichens form the first community in

 
 
 
 

533. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

540. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

542. Polystelic condition is found in:

 
 
 
 

543. The spur of Pinus roxburghii has :

 
 
 
 

544. Ovary is absent in:

 
 
 
 

545. Winged seeds are found in :

 
 
 
 

546. Leaf spot of groundnut is caused by :

 
 
 
 

547. Fruits are not found in :

 
 
 
 

548. Male gametophyte of Selaginella is found:

 
 
 
 

549. Majority of lichens are :

 
 
 
 

550. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

552. In Cycas the fertilization is:

 
 
 
 

553. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

554. The prothallus of fern is:

 
 
 
 

555. The megasporangium of Selaginella is:

 
 
 
 

556. Yeast is a source of:

 
 
 
 

557. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

560. Most of the lichens are composed of :

 
 
 
 

561. In Gymnosperms endosperm is a:

 
 
 
 

562. Chemosynthetic bacteria are:

 
 
 
 

563. Bacteriophages have been used as:

 
 
 
 

564. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. Most primitive kind of flower is represented by:

 
 
 
 

568. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. Pasteurization of milk involves heating for:

 
 
 
 

573. Which one of the following statement is wrong?

 
 
 
 

574. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

576. First animal pathogenic virus was discovered by:

 
 
 
 

577. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

580. Cellular slime mold is:

 
 
 
 

581. Sometimes the bacterial cell is enclosed in:

 
 
 
 

582. Nannandria are:

 
 
 
 

583. Fern plants are:

 
 
 
 

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

 
 
 
 

585. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. Which group of algae have an incipient nucleus?

 
 
 
 

591. Fruits are not found in:

 
 
 
 

592. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

594. Plasmids are:

 
 
 
 

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

 
 
 
 

596. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

599. Centric discoid form of diatom is:

 
 
 
 

600. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. Linnaeus is credited with introducing:

 
 
 
 

604. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

606. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. Agar-agar is obtained from:

 
 
 
 

611. Vascular cryptogam is the term used for :

 
 
 
 

612. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

615. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

621. Seeds are characteristically found in :

 
 
 
 

622. The zoospores of Ulothrix are :

 
 
 
 

623. Sexual reproduction of lichen is due to :

 
 
 
 

624. Nitrifying bacteria play an important role by converting:

 
 
 
 

625. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

627. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

629. Who discovered heterothallism in fungi?

 
 
 
 

630. Disease resistant plant varieties can be produced by :

 
 
 
 

631. Which is a redwood tree?

 
 
 
 

632. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

637. Which of the following are included in Tracheophyta?

 
 
 
 

638. Most primitive embryophytes are placed in :

 
 
 
 

639. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

642. Gram stain is used to:

 
 
 
 

643. In angiosperms double fertilization represents:

 
 
 
 

644. What is the role of nitrifying bacteria?

 
 
 
 

645. Anoxygenic photosynthesis occurs in:

 
 
 
 

646. Which of the following applies to Selaginella?

 
 
 
 

647. In moss, reduction division occurs in :

 
 
 
 

648. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

650. The truncated cone of HIV consists of:

 
 
 
 

651. Siphonogamy is found in:

 
 
 
 

652. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

655. Protistan algae obtain their food as:

 
 
 
 

656. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

658. Clostridium can:

 
 
 
 

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

 
 
 
 

660. Green plants are classified as :

 
 
 
 

661. Liverworts are included in :

 
 
 
 

662. The lambda phase is a:

 
 
 
 

663. In moss, stomata are found:

 
 
 
 

664. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

667. Select the wrong statement:

 
 
 
 

668. Who discovered streptomycin?

 
 
 
 

669. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

671. The disease symptom necrosis refers to :

 
 
 
 

672. Halophiles are the bacteria that require for growth:

 
 
 
 

673. Antibiotic has been extracted from :

 
 
 
 

674. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

679. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

681. The spermatozoids of Cycas are :

 
 
 
 

682. Economic importance of bacteria lies in their being:

 
 
 
 

683. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

685. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

688. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

690. Amoeba is a member of the phylum:

 
 
 
 

691. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

694. Mucilaginous canals in Cycas are found in :

 
 
 
 

695. What is streptomycin?

 
 
 
 

696. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

698. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

700. Spermatophyta are characterized by producing:

 
 
 
 

701. Fertility of the soil is increased by:

 
 
 
 

702. Which of the following is true for Selaginella?

 
 
 
 

703. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

705. Etiology includes the study of :

 
 
 
 

706. Antibiotics cure the disease by:

 
 
 
 

707. The two conjugating gametangia of Rhizopus are:

 
 
 
 

708. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

711. Azolla and Salvinia both are:

 
 
 
 

712. Funaria can be differentiated from Cycas :

 
 
 
 

713. Vascular tissue is found in :

 
 
 
 

714. All protozoans possess:

 
 
 
 

715. Which of the following is a parasitic algae?

 
 
 
 

716. Quarantine regulations are concerned with:

 
 
 
 

717. Germ theory of disease was proposed by:

 
 
 
 

718. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

720. Water-net is the name of:

 
 
 
 

721. 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:

 
 
 
 

722. Which statement is wrong in regard to bacteria?

 
 
 
 

723. Funaria are commonly found :

 
 
 
 

724. Saccharomyces ludwigii ascus produces:

 
 
 
 

725. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

727. 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?

 
 
 
 

728. Botulinum toxin effects:

 
 
 
 

729. Who named prion?

 
 
 
 

730. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

732. An alga which is rich in proteins:

 
 
 
 

733. Ulothrix produces :

 
 
 
 

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

 
 
 
 

735. Funaria is :

 
 
 
 

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

 
 
 
 

737. Red rot of sugarcane is caused by :

 
 
 
 

738. Enzymes are absent in:

 
 
 
 

739. The tree fern is:

 
 
 
 

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

 
 
 
 

741. Which of the following is true for viruses?

 
 
 
 

742. Spores of which plants have chloroplast:

 
 
 
 

743. Pythium debaryanum is the causative agent of:

 
 
 
 

744. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

748. Virion refers to:

 
 
 
 

749. Woody climbers are known as :

 
 
 
 

750. Funaria is :

 
 
 
 

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

 
 
 
 

752. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

756. The sporophyte of Riccia is :

 
 
 
 

757. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

759. What are plasmids?

 
 
 
 

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

 
 
 
 

761. The prothallus of fern represents the plant:

 
 
 
 

762. E coli is a:

 
 
 
 

763. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

770. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

773. Vegetative reproduction in Cycas is by means of :

 
 
 
 

774. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

776. The nucleus of bacteria is:

 
 
 
 

777. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

780. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

782. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

784. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

786. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

789. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

791. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

793. Aflatoxin is produced as a product in :

 
 
 
 

794. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

798. Which of the following is a heterosporous pteridophyte?

 
 
 
 

799. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

803. Bivalved siliceous shell or frustule occur in:

 
 
 
 

804. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

806. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

808. Discovery of penicillin was based on:

 
 
 
 

809. The sporangiophores in Rhizopus are:

 
 
 
 

810. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

811. The development of Selaginella embryo is:

 
 
 
 

812. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

814. Most common type of conjugation in Spirogyra is :

 
 
 
 

815. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

820. Fern phloem lacks:

 
 
 
 

821. Small epidermal swellings due to infection are called :

 
 
 
 

822. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

824. Gametophyte is the main plant body in :

 
 
 
 

825. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

827. Male gametes in Dryopteris are:

 
 
 
 

828. Gymnosperms could also be called as:

 
 
 
 

829. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

831. Viroids have:

 
 
 
 

832. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

834. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

837. In moss, calyptra is formed from:

 
 
 
 

838. All algae have:

 
 
 
 

839. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

841. Viruses have:

 
 
 
 

842. Lichens reproduce by :

 
 
 
 

843. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

845. Ovules are not found enclosed in ovary in :

 
 
 
 

846. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. Absorptive nutrition is:

 
 
 
 

851. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

855. Which is a gametophytic tissue?

 
 
 
 

856. Which is a fungicide?

 
 
 
 

857. Which of the following is a monocot?

 
 
 
 

858. Why is Cycas called a living fossil?

 
 
 
 

859. Fern prothallus produces:

 
 
 
 

860. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

864.