Quiz_Random

1. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

6. Embryophyta includes:

 
 
 
 

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

 
 
 
 

8. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

13. Diploxylic vascular bundles are found in:

 
 
 
 

14. Ethylene oxide is widely used to:

 
 
 
 

15. The order generally ends with:

 
 
 
 

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

 
 
 
 

17. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Ergot is obtained from :

 
 
 
 

22. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. What are plasmids?

 
 
 
 

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

 
 
 
 

28. The middle sterile part of capsule is called:

 
 
 
 

29. Which is the correct statement about Selaginella?

 
 
 
 

30. Smut of maize is caused by :

 
 
 
 

31. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

39. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

41. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

46. The ascus of yeast contains:

 
 
 
 

47. In Cycas microsporangia are borne on:

 
 
 
 

48. Fern plants are:

 
 
 
 

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

 
 
 
 

50. Embryo formation is not known in :

 
 
 
 

51. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Most common type of conjugation in Spirogyra is :

 
 
 
 

59. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

61. Oswald Tippo’s classification is:

 
 
 
 

62. Mycoplasma was discovered by:

 
 
 
 

63. Liverworts are included in :

 
 
 
 

64. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

66. Which of the following are included in Tracheophyta?

 
 
 
 

67. Male gametophyte of Selaginella is found:

 
 
 
 

68. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

69. Polystelic condition is found in:

 
 
 
 

70. Viruses have:

 
 
 
 

71. What is streptomycin?

 
 
 
 

72. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

74. The fungi are mostly:

 
 
 
 

75. Heterocysts are found in :

 
 
 
 

76. Viroids have:

 
 
 
 

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

 
 
 
 

78. The young leaves of Cycas have :

 
 
 
 

79. The chloroplast in Ulothrix is :

 
 
 
 

80. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

82. Which one of the following statement is wrong?

 
 
 
 

83. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

85. Azolla growing in paddy fields helps in:

 
 
 
 

86. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

88. The antherozoids of Funaria are :

 
 
 
 

89. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. Fruiting body of lichens is :

 
 
 
 

93. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

97. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

99. 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?

 
 
 
 

100. In Pteris, the archegonia are present:

 
 
 
 

101. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

104. Which of the following does not contain chlorophyll?

 
 
 
 

105. Clostridium can:

 
 
 
 

106. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

108. The vascular bundles of Cycas stem are :

 
 
 
 

109. Green plants are classified as:

 
 
 
 

110. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

112. True sexuality is not found in:

 
 
 
 

113. Nannandria are:

 
 
 
 

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

 
 
 
 

115. Virus and bacteriophage are made-up of:

 
 
 
 

116. John Hutchinson divided dicots into two divisions:

 
 
 
 

117. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

119. Multicellular and jacketed sex organs are found in :

 
 
 
 

120. Which of the following are included in Tracheophyta?

 
 
 
 

121. Ovary is absent in :

 
 
 
 

122. The chromosomal number in:

 
 
 
 

123. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

125. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

127. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

129. Methanogens belong to:

 
 
 
 

130. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

131. Gymnosperms could also be called as:

 
 
 
 

132. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

134. The truncated cone of HIV consists of:

 
 
 
 

135. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

137. Interferon is a:

 
 
 
 

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

 
 
 
 

139. Pinus microsporophyll bears:

 
 
 
 

140. Select the wrong statement:

 
 
 
 

141. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

143. Who discovered heterothallism in fungi?

 
 
 
 

144. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

146. Pinus is:

 
 
 
 

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

 
 
 
 

148. Each chloroplast in Spirogyra bears :

 
 
 
 

149. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

153. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

155. Which is a redwood tree?

 
 
 
 

156. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

159. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. Which is the nuclear material in bacteria?

 
 
 
 

163. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

165. Woody climbers are known as :

 
 
 
 

166. Which is an edible fungus?

 
 
 
 

167. Roots are absent in :

 
 
 
 

168. In moss, calyptra is formed from:

 
 
 
 

169. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

171. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

173. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

176. Disease resistant plant varieties can be produced by :

 
 
 
 

177. The teeth of peristome of Funaria are :

 
 
 
 

178. Nitrogen-fixing bacteria may be located:

 
 
 
 

179. Vascular tissue is found in :

 
 
 
 

180. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

183. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

185. The photosynthetic protists are:

 
 
 
 

186. Which among the following is a shrub?

 
 
 
 

187. Which of the following is a heterosporous pteridophyte?

 
 
 
 

188. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

190. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

192. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

194. Botulism is a:

 
 
 
 

195. The sori in Dryopteris are found on:

 
 
 
 

196. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

199. In Gymnosperms endosperm is a:

 
 
 
 

200. Standard size of a herbarium sheet is:

 
 
 
 

201. Nitrifying bacteria play an important role by converting:

 
 
 
 

202. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. A gill of Agaricus:

 
 
 
 

207. Cycas is:

 
 
 
 

208. In Selaginella, the microsporangia are:

 
 
 
 

209. Bacteria were first discovered by:

 
 
 
 

210. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

215. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

216. Facultative parasite is:

 
 
 
 

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

 
 
 
 

218. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

221. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. The microsporophylls on the cone of Cycas are :

 
 
 
 

226. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

228. In a diplontic life cycle:

 
 
 
 

229. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

231. Rhizopus belongs to:

 
 
 
 

232. Total parasites belong to:

 
 
 
 

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

 
 
 
 

234. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

237. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

239. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

241. Which condition is found in Cycas?

 
 
 
 

242. The fungi used as food are:

 
 
 
 

243. How is moss different from fern?

 
 
 
 

244. Which of the following have a prokaryotic cell?

 
 
 
 

245. Pollination in Pinus is :

 
 
 
 

246. Heterotrichous habit means :

 
 
 
 

247. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

253. The source of litmus is :

 
 
 
 

254. 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:

 
 
 
 

255. In Pteris, the roots are:

 
 
 
 

256. What are Cyanobacteria?

 
 
 
 

257. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

259. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

262. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

265. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

266. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

270. Heterospory and ligulate leaves are a feature of:

 
 
 
 

271. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

275. Which is not found in bacteria?

 
 
 
 

276. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

279. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

281. Maximum diversity of life forms occurs in :

 
 
 
 

282. In moss, peristomial teeth are:

 
 
 
 

283. The gametophyte of fern is as:

 
 
 
 

284. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

287. Spermatophyta are characterized by producing:

 
 
 
 

288. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

289. Fern phloem lacks:

 
 
 
 

290. The roots of Cycas are :

 
 
 
 

291. Kuru, a human disease is caused by:

 
 
 
 

292. Pasteur is famous for his:

 
 
 
 

293. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

295. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

297. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

300. Viruses are commonly transmitted in plants through:

 
 
 
 

301. Special feature of pollen grains of Pinus is :

 
 
 
 

302. Facultative saprophyte is:

 
 
 
 

303. Selaginella differs from Moss in having:

 
 
 
 

304. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

306. Most appropriate word for protozoans is:

 
 
 
 

307. Which of the following applies to Selaginella?

 
 
 
 

308. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

311. The coralloid roots are :

 
 
 
 

312. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. The plants of Funaria grow :

 
 
 
 

316. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

317. Chemosynthetic bacteria are:

 
 
 
 

318. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

319. Funaria are commonly found :

 
 
 
 

320. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

322. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

324. E coli is a:

 
 
 
 

325. Club moss is the common name of :

 
 
 
 

326. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. Bacteriophages have been used as:

 
 
 
 

330. In Gymnocarpeae the fruiting body is :

 
 
 
 

331. Which statement is wrong in regard to bacteria?

 
 
 
 

332. Most primitive kind of flower is represented by:

 
 
 
 

333. Cycas is :

 
 
 
 

334. The chloroplast of Chlamydomonas are:

 
 
 
 

335. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

337. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

339. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

341. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

343. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

345. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

351. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

354. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. LSD is:

 
 
 
 

358. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

366. The two conjugating gametangia of Rhizopus are:

 
 
 
 

367. Broad spectrum antibiotic is, which:

 
 
 
 

368. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

372. Discovery of penicillin was based on:

 
 
 
 

373. Protistan algae obtain their food as:

 
 
 
 

374. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

376. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

378. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

380. 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:

 
 
 
 

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

 
 
 
 

382. The gametophyte produced by apospory is :

 
 
 
 

383. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

385. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

387. Lichens form the first community in

 
 
 
 

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

 
 
 
 

389. 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?

 
 
 
 

390. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

392. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

395. Wine turns sour because of:

 
 
 
 

396. The term stele was given by:

 
 
 
 

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

 
 
 
 

398. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

400. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

403. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. The disease apple scab is caused by:

 
 
 
 

408. Who named prion?

 
 
 
 

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

 
 
 
 

410. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Gram stain is used to:

 
 
 
 

414. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

418. In moss, reduction division occurs in :

 
 
 
 

419. Cocci types of bacteria are:

 
 
 
 

420. 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:

 
 
 
 

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

 
 
 
 

422. Generic name of mango is:

 
 
 
 

423. The gametophyte of fern bears:

 
 
 
 

424. Fern prothallus produces:

 
 
 
 

425. Iodine is obtained from:

 
 
 
 

426. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

428. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

430. 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:

 
 
 
 

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

 
 
 
 

432. Plasmids are:

 
 
 
 

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

 
 
 
 

434. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

436. Seeds are characteristically found in:

 
 
 
 

437. The sexual reproductive organs in Rhizopus are:

 
 
 
 

438. Lichens show :

 
 
 
 

439. Acetobacter is useful in:

 
 
 
 

440. Pasteurization of milk involves heating for:

 
 
 
 

441. Embryophyta includes :

 
 
 
 

442. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

444. Mostly type of zygospore in Ulothrix is:

 
 
 
 

445. Cycas plant in appearance resembles :

 
 
 
 

446. 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:

 
 
 
 

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

 
 
 
 

448. Cycas is different from mango in :

 
 
 
 

449. Number of capsomeres forming capsid of TMV is:

 
 
 
 

450. Detailed study of bacteriophage was made by:

 
 
 
 

451. Mycoplasma are:

 
 
 
 

452. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Longest known virus is:

 
 
 
 

456. Psilotum is:

 
 
 
 

457. Aflatoxin is produced by:

 
 
 
 

458. Pollination drop is:

 
 
 
 

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

 
 
 
 

460. Sexual reproduction of lichen is due to :

 
 
 
 

461. Ulothrix produces :

 
 
 
 

462. Reproduction in Cycas takes place by :

 
 
 
 

463. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

471. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

472. Rhizopus and yeast are usually:

 
 
 
 

473. Vascular cryptogams is the term used for:

 
 
 
 

474. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

476. Zoogametes are not found in:

 
 
 
 

477. Heterospory is the production of:

 
 
 
 

478. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. Chief constituents of bordeaux mixture are :

 
 
 
 

486. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

488. Saccharomyces ludwigii ascus produces:

 
 
 
 

489. The prothallus of fern represents the plant:

 
 
 
 

490. The spermatozoids of Cycas are :

 
 
 
 

491. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

493. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

495. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

496. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

498. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

500. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

501. In Cycas:

 
 
 
 

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

 
 
 
 

503. Who discovered streptomycin?

 
 
 
 

504. Which of the following is a monocot?

 
 
 
 

505. Pollination in Cycas takes place by :

 
 
 
 

506. Select the correct statement: (NEET 2016)

 
 
 
 

507. The largest alga is:

 
 
 
 

508. The most important property of yeast is:

 
 
 
 

509. The lambda phase is a:

 
 
 
 

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

 
 
 
 

511. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

513. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

516. Reproduction in Rhizopus is:

 
 
 
 

517. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

520. Cleavage polyembryony is found in :

 
 
 
 

521. Mycoplasmas are not viruses in nature because:

 
 
 
 

522. Funaria is :

 
 
 
 

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

 
 
 
 

524. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

527. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

531. Which group of algae have an incipient nucleus?

 
 
 
 

532. In dinoflagellates, the two flagella are:

 
 
 
 

533. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

534. The fern plant is:

 
 
 
 

535. The most primitive vascular plants is:

 
 
 
 

536. Photoautotrophic bacteria have:

 
 
 
 

537. Majority of lichens are :

 
 
 
 

538. Climbers are found in genus:

 
 
 
 

539. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

544. What is a vector?

 
 
 
 

545. Meiosis in Ulothrix takes place:

 
 
 
 

546. Siphonogamy is found in:

 
 
 
 

547. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

550. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

553. Tautonyms are illegitimate in:

 
 
 
 

554. Which organisms are the oldest life forms?

 
 
 
 

555. In a bacteriophage, DNA is present in:

 
 
 
 

556. The central part of Funaria axis is :

 
 
 
 

557. In Funaria, calyptra is derived from :

 
 
 
 

558. Placenta in fern is:

 
 
 
 

559. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

564. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. Why is Cycas called a living fossil?

 
 
 
 

568. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

571. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

575. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

577. Citrus canker is caused by:

 
 
 
 

578. Funaria is :

 
 
 
 

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

 
 
 
 

580. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

583. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

585. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

587. Lichen show :

 
 
 
 

588. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

591. Fairy ring is the name given to:

 
 
 
 

592.

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

 
 
 
 

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

 
 
 
 

595. Which part of Riccia bears nurse cells?

 
 
 
 

596. Metulae are found in:

 
 
 
 

597. Most of the lichens are composed of :

 
 
 
 

598. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. Ovules are not found enclosed in ovary in :

 
 
 
 

602. Chemosynthetic bacteria are:

 
 
 
 

603. 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?

 
 
 
 

604. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

607. Which of the following statement is correct?

 
 
 
 

608. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

613. Botulinum toxin effects:

 
 
 
 

614. Banana bunchy top is caused by :

 
 
 
 

615. Usually, bacteria reproduce by:

 
 
 
 

616. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

618. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

620. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

625. Virion refers to:

 
 
 
 

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

 
 
 
 

627. Black rust of wheat is caused by:

 
 
 
 

628. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

629. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

631. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. Milk is converted to curd by:

 
 
 
 

637. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

639. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

641. Germ theory of disease was proposed by:

 
 
 
 

642. In moss, sporogenous tissue arises from:

 
 
 
 

643. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

646. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

648. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

650. In tracheophyta:

 
 
 
 

651. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

652. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

653. Lichens are indicators of :

 
 
 
 

654. Bacteria which are spherical are called:

 
 
 
 

655. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

660. Penicillin was discovered by:

 
 
 
 

661. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

664. Which of the following shows heterotrichous habit?

 
 
 
 

665. Red rot of sugarcane is caused by:

 
 
 
 

666. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

669. The antibiotic is obtained from:

 
 
 
 

670. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

672. Lichens are the indicator of pollution :

 
 
 
 

673. Reserve food in Euglena is:

 
 
 
 

674. 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?

 
 
 
 

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

 
 
 
 

676. The first to isolate a plant virus was:

 
 
 
 

677. Little leaf disease of Brinjal is caused by:

 
 
 
 

678. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

680. The megasporangium of Selaginella is:

 
 
 
 

681. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

682. Water-net is the name of:

 
 
 
 

683. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

685. The spur of Pinus roxburghii has :

 
 
 
 

686. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

688. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

689. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

692. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

698. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

702. Fruits are not found in:

 
 
 
 

703. Circular DNA is seen in:

 
 
 
 

704. Which is absent from the xylem of Cycas?

 
 
 
 

705. Etiology includes the study of :

 
 
 
 

706. Leaf spot of groundnut is caused by :

 
 
 
 

707. Diphtheria is caused by:

 
 
 
 

708. Triple antigen injection or vaccine are for:

 
 
 
 

709.

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

 
 
 
 

711. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

718. Protists which are diploid reproduce sexually by:

 
 
 
 

719. Which of the following is true for Selaginella?

 
 
 
 

720. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

723. In Funaria :

 
 
 
 

724. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

726. The Rhizopus is:

 
 
 
 

727. Water bloom is generally caused by :

 
 
 
 

728. All archaebacteria lack:

 
 
 
 

729. Which of the following are absent in Mycoplasma?

 
 
 
 

730. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

732. Indusium in Dryopteris is:

 
 
 
 

733. Choose the correct statement about Spirogyra:

 
 
 
 

734. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. Rhizophore of Selaginella is:

 
 
 
 

739. The lichens growing on rocks are called :

 
 
 
 

740. The upper region of moss capsule is :

 
 
 
 

741. Azolla and Salvinia both are:

 
 
 
 

742. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

745. To which country Antony van Leeuwenhoek belong?

 
 
 
 

746. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

748. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

753. Cap cells are found in the filament of:

 
 
 
 

754.

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

 
 
 
 

756. Some biologists have used the term Mycetozoa for:

 
 
 
 

757. The prothallus of fern is:

 
 
 
 

758. Rice, pea, potato are :

 
 
 
 

759. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

760. Spirogyra represents the :

 
 
 
 

761. The tree fern is:

 
 
 
 

762. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

764. Penicillin is obtained from:

 
 
 
 

765. Spermatophyta are characterized by producing:

 
 
 
 

766. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. The ferns are usually found:

 
 
 
 

770. Smallpox is caused by:

 
 
 
 

771. 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:

 
 
 
 

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

 
 
 
 

773. Viruses are considered to be:

 
 
 
 

774. Lichens are ecologically important because :

 
 
 
 

775. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

777. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

781. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. Small epidermal swellings due to infection are called :

 
 
 
 

785. Club moss and Peat moss belong to:

 
 
 
 

786. The archegonia in Selaginella develop on:

 
 
 
 

787. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

789. Late blight of potato is caused by:

 
 
 
 

790. Typhoid in man is caused by:

 
 
 
 

791. Bacteria differ from viruses in being sensitive to:

 
 
 
 

792. Bacteria are placed under:

 
 
 
 

793. Cyathia is characterized by:

 
 
 
 

794. Heterosporous pteridophytes always form:

 
 
 
 

795. The flagella of Chlamydomonas are:

 
 
 
 

796. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

798. Red rot of sugarcane is caused by :

 
 
 
 

799. Which is an exception to cell theory?

 
 
 
 

800. All algae have:

 
 
 
 

801. Absorptive nutrition is:

 
 
 
 

802. Which causes red tide?

 
 
 
 

803. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

805. Genetic material of TMV is:

 
 
 
 

806. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

807. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

809. Select the wrong statement:

 
 
 
 

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

 
 
 
 

811. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

817. Which bacteria convert nitrate into nitrogen?

 
 
 
 

818. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

820. Lichens are pioneers of vegetation in a :

 
 
 
 

821. In moss, conducting tissue is made up of

 
 
 
 

822. The fungi are usually:

 
 
 
 

823. Most of the algae are :

 
 
 
 

824. Sometimes the bacterial cell is enclosed in:

 
 
 
 

825. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

829. Green plants are classified as :

 
 
 
 

830. In moss, stomata are found:

 
 
 
 

831. Where does meiosis occur in yeast?

 
 
 
 

832. Most primitive group of vascular plants are:

 
 
 
 

833. Fruits are not found in :

 
 
 
 

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

 
 
 
 

835. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

837. The sporangia of Selaginella are attached:

 
 
 
 

838. The sporophyte of Riccia is represented by :

 
 
 
 

839. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

840. Fern prothallus is:

 
 
 
 

841. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

843. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

847. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

849. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

851. In binomial system most of the words are:

 
 
 
 

852. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

854. Amoeba is a member of the phylum:

 
 
 
 

855. Centric discoid form of diatom is:

 
 
 
 

856. All protozoans possess:

 
 
 
 

857. Lichens reproduce by :

 
 
 
 

858. Black rust of wheat is caused by:

 
 
 
 

859.

 

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

 
 
 
 

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

 
 
 
 

862. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

864. Funaria can be differentiated from Cycas :