Quiz_Random

1. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

3. Where does meiosis occur in yeast?

 
 
 
 

4. Penicillin is obtained from:

 
 
 
 

5. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

13. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

17. Most primitive group of vascular plants are:

 
 
 
 

18. Iodine is obtained from :

 
 
 
 

19. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

21. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

23. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

28. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Yeast grows more rapidly in:

 
 
 
 

32. Linnaeus is credited with introducing:

 
 
 
 

33. Fern plants are:

 
 
 
 

34. The young leaves of Cycas have :

 
 
 
 

35. Ovary is absent in:

 
 
 
 

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

 
 
 
 

37. Cycas revoluta is widely grown as :

 
 
 
 

38. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. 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:

 
 
 
 

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

 
 
 
 

43. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. Banana bunchy top is caused by :

 
 
 
 

48. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

50. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

52. Some biologists have used the term Mycetozoa for:

 
 
 
 

53. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Which group of algae have an incipient nucleus?

 
 
 
 

59. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Acellular slime mold is/are:

 
 
 
 

64. Climbers are found in genus:

 
 
 
 

65. Mycoplasmas are not viruses in nature because:

 
 
 
 

66. Lichens reproduce by :

 
 
 
 

67. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. The sporangia of Selaginella are attached:

 
 
 
 

71. Cycas is similar to a mustard plant :

 
 
 
 

72. Pythium debaryanum is the causative agent of:

 
 
 
 

73. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

75. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79.

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

 
 
 
 

81. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

88. Aflatoxin is produced as a product in :

 
 
 
 

89. Multicellular and jacketed sex organs are found in :

 
 
 
 

90. The largest alga is:

 
 
 
 

91. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

93. Pneumonia is caused by:

 
 
 
 

94. The roots of Cycas are :

 
 
 
 

95. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

97. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

102. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

104. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

106. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

108. What is special feature of fern archegonia?

 
 
 
 

109. Which is a fungicide?

 
 
 
 

110. Facultative saprophyte is:

 
 
 
 

111. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

113. Mixed cropping helps :

 
 
 
 

114. Little leaf disease of Brinjal is caused by:

 
 
 
 

115. Ovary is absent in :

 
 
 
 

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

 
 
 
 

117. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

120. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

122. Woody climbers are known as :

 
 
 
 

123. Majority of lichens are :

 
 
 
 

124. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

127. 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:

 
 
 
 

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

 
 
 
 

129. Germ theory of disease was proposed by:

 
 
 
 

130. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

132. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

135. Azolla growing in paddy fields helps in:

 
 
 
 

136. Funaria is :

 
 
 
 

137. Amoeba is a member of the phylum:

 
 
 
 

138. Spermatophyta are characterized by producing:

 
 
 
 

139. Bivalved siliceous shell or frustule occur in:

 
 
 
 

140. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

144. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

146. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

148. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

150. Spermatophyta are characterized by producing:

 
 
 
 

151. The archegonia in Selaginella develop on:

 
 
 
 

152. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. Detailed study of bacteriophage was made by:

 
 
 
 

158. Pollination in Cycas takes place by :

 
 
 
 

159. Small epidermal swellings due to infection are called :

 
 
 
 

160. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

162. Fern prothallus is:

 
 
 
 

163. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

167. Bacteria differ from viruses in being sensitive to:

 
 
 
 

168. Disease resistant plant varieties can be produced by :

 
 
 
 

169. The fungi are usually:

 
 
 
 

170. Heterospory is the production of:

 
 
 
 

171. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

175. The development of Selaginella embryo is:

 
 
 
 

176. 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?

 
 
 
 

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

 
 
 
 

178. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

180. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

183. Ulothrix produces :

 
 
 
 

184. Embryophyta includes :

 
 
 
 

185. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

187. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

190. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

191. Nannandria are:

 
 
 
 

192. Typhoid in man is caused by:

 
 
 
 

193. Broad spectrum antibiotic is, which:

 
 
 
 

194. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

198. Club moss is the common name of :

 
 
 
 

199. Sporophyte of Funaria is :

 
 
 
 

200. A gill of Agaricus:

 
 
 
 

201. Which of the following have algal zone?

 
 
 
 

202. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

204. Who among the following discovered virus?

 
 
 
 

205. What are plasmids?

 
 
 
 

206. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

209. The antherozoids of Funaria are :

 
 
 
 

210. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. All protozoans possess:

 
 
 
 

217. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. The central part of Funaria axis is :

 
 
 
 

221. The stele of Dryopteris is a:

 
 
 
 

222. What is a vector?

 
 
 
 

223. 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?

 
 
 
 

224. Which is a gametophytic tissue?

 
 
 
 

225. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

226. Which bacteria convert nitrate into nitrogen?

 
 
 
 

227. Gymnosperms could also be called as:

 
 
 
 

228. In Gymnosperms endosperm is a:

 
 
 
 

229. The fungi used as food are:

 
 
 
 

230. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

234. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

239. In angiosperms double fertilization represents:

 
 
 
 

240. Soil fertility is lost by the activities of:

 
 
 
 

241. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

243. What is absent in Deuteromycetes?

 
 
 
 

244. In a bacteriophage, DNA is present in:

 
 
 
 

245. Lichens show :

 
 
 
 

246. Which of the following is a parasitic algae?

 
 
 
 

247. The chloroplast in Ulothrix is :

 
 
 
 

248. In moss, peristomial teeth are:

 
 
 
 

249. Citrus canker is caused by:

 
 
 
 

250. Endemic plants are characterised by their:

 
 
 
 

251. The spermatozoids of Cycas are :

 
 
 
 

252. Green plants are classified as :

 
 
 
 

253. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

255. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

257. Photosynthetic protists belong to:

 
 
 
 

258. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

260. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

262. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

264. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

266. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

268. Water bloom is generally caused by :

 
 
 
 

269. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

271. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

274. Mycoplasma are:

 
 
 
 

275. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

278. The term stele was given by:

 
 
 
 

279. Who discovered streptomycin?

 
 
 
 

280. Cycas is :

 
 
 
 

281.

 

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

 
 
 
 

283. The gametophyte produced by apospory is :

 
 
 
 

284. Cycas is:

 
 
 
 

285. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

290. Which of the following are absent in Mycoplasma?

 
 
 
 

291. 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:

 
 
 
 

292. The leaves of Funaria are :

 
 
 
 

293. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

296. Which of the following is a heterosporous pteridophyte?

 
 
 
 

297. An alga which is rich in proteins:

 
 
 
 

298. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

300. Cryptogams include :

 
 
 
 

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

 
 
 
 

302. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

305. The lambda phase is a:

 
 
 
 

306. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

307. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

310. John Hutchinson divided dicots into two divisions:

 
 
 
 

311. The antibiotic is obtained from:

 
 
 
 

312. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

317. Rhizopus belongs to:

 
 
 
 

318. Pteridophytes are also known as :

 
 
 
 

319. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

321. In Gymnocarpeae the fruiting body is :

 
 
 
 

322. Lichen show :

 
 
 
 

323. Sporophyte of fern is:

 
 
 
 

324. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

327. Sometimes the bacterial cell is enclosed in:

 
 
 
 

328. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. In Cycas:

 
 
 
 

336. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

338. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

340. Mycoplasma is different from bacteria due to:

 
 
 
 

341. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

343. Cocci types of bacteria are:

 
 
 
 

344. The fungi are mostly:

 
 
 
 

345. Meristele of fern is:

 
 
 
 

346. In a diplontic life cycle:

 
 
 
 

347. Fruits are not found in Cycas because:

 
 
 
 

348. All algae have:

 
 
 
 

349. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. The chloroplast of Chlamydomonas are:

 
 
 
 

353. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

355. Gram stain is used to:

 
 
 
 

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

 
 
 
 

357. Lichens are ecologically important because :

 
 
 
 

358. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. Spores of which plants have chloroplast:

 
 
 
 

365. The alga, Spirogyra are found in :

 
 
 
 

366. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

370. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

372. Pseudomycelium is found in:

 
 
 
 

373. The fern plant is:

 
 
 
 

374. Which is absent from the xylem of Cycas?

 
 
 
 

375. Which of the following have a prokaryotic cell?

 
 
 
 

376. Which lichen is called Reindeer moss?

 
 
 
 

377. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

382. Total parasites belong to:

 
 
 
 

383. Fruits are not found in :

 
 
 
 

384. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

386. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

388. Pinus microsporophyll bears:

 
 
 
 

389. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

391. Bryophyta have a special character from other plants:

 
 
 
 

392. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

394. 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:

 
 
 
 

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

 
 
 
 

396.

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

 
 
 
 

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

 
 
 
 

399. Which of the following is true for Selaginella?

 
 
 
 

400. Germination of the seed of Pinus is :

 
 
 
 

401. Which have the largest antherozoid?

 
 
 
 

402. Which is the nuclear material in bacteria?

 
 
 
 

403. Most appropriate word for protozoans is:

 
 
 
 

404. Mycoplasma contains:

 
 
 
 

405. Ovules are not found enclosed in ovary of:

 
 
 
 

406. NBG of Lucknow is now named as:

 
 
 
 

407. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

408. The plants of Funaria grow :

 
 
 
 

409. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

410. Select the correct statement: (NEET 2016)

 
 
 
 

411. Who named prion?

 
 
 
 

412. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

414. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

417. Most of the algae are :

 
 
 
 

418. Embryo formation is not known in :

 
 
 
 

419. Number of capsomeres forming capsid of TMV is:

 
 
 
 

420. Which class of Protozoa includes all parasitic forms?

 
 
 
 

421. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

423. Yeast is a source of:

 
 
 
 

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

 
 
 
 

425. Which fixes atmospheric nitrogen?

 
 
 
 

426. Late blight of potato is caused by:

 
 
 
 

427. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

430. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. Generic name of mango is:

 
 
 
 

434. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

436. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

438. Redness of red sea is due to :

 
 
 
 

439. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

442. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

444. Fairy ring is the name given to:

 
 
 
 

445. Usually, bacteria reproduce by:

 
 
 
 

446. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

449. The orders generally have the uniform endings:

 
 
 
 

450. 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:

 
 
 
 

451. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

453. The fungi that grow on wood are called:

 
 
 
 

454. Pinus gerardiana is :

 
 
 
 

455. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

458. Halophiles are the bacteria that require for growth:

 
 
 
 

459. The Rhizopus is:

 
 
 
 

460. E coli is a:

 
 
 
 

461. Which statement is wrong in regard to bacteria?

 
 
 
 

462. Bentham and Hooker placed gymnosperms:

 
 
 
 

463. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

465. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

467. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

469. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

471. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

476. Green plants are classified as:

 
 
 
 

477. Black rust of wheat is caused by:

 
 
 
 

478. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

481. How is moss different from fern?

 
 
 
 

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

 
 
 
 

483. The middle sterile part of capsule is called:

 
 
 
 

484. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

487. Desired type of Cycas can be grown by:

 
 
 
 

488. Sleeping sickness disease in man is caused by:

 
 
 
 

489. Among the algae kelps are :

 
 
 
 

490. The tree fern is:

 
 
 
 

491. The prothallus of fern is:

 
 
 
 

492. The male gametes of Pinus are :

 
 
 
 

493. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

495. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

497. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

499. Funaria is :

 
 
 
 

500. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

504. Viruses have:

 
 
 
 

505. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

508. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

511. The coralloid roots are :

 
 
 
 

512. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

514. Black rust of wheat is caused by:

 
 
 
 

515. Which causes red tide?

 
 
 
 

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

 
 
 
 

517. Common phycobiont in a lichen is :

 
 
 
 

518. Selaginella differs from Moss in having:

 
 
 
 

519. Tautonyms are illegitimate in:

 
 
 
 

520. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

522. Which is an exception to cell theory?

 
 
 
 

523. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

525. Which of the following are included in Tracheophyta?

 
 
 
 

526. The truncated cone of HIV consists of:

 
 
 
 

527. Lichens form the first community in

 
 
 
 

528. Vascular tissue is found in :

 
 
 
 

529. The gametophyte of fern bears:

 
 
 
 

530. Who discovered heterothallism in fungi?

 
 
 
 

531. The upper region of moss capsule is :

 
 
 
 

532. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

538. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

540. The largest known bacterium is:

 
 
 
 

541. Streptomyces falls under:

 
 
 
 

542. Most resistant spore in bacteria is:

 
 
 
 

543. Special feature of pollen grains of Pinus is :

 
 
 
 

544. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

547. Longest known virus is:

 
 
 
 

548. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

550. In tracheophyta:

 
 
 
 

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

 
 
 
 

552. Red rot of sugarcane is caused by:

 
 
 
 

553. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

555. Proembryo in Pinus is :

 
 
 
 

556. 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:

 
 
 
 

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

 
 
 
 

558. Cycas is different from mango in :

 
 
 
 

559. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

560. Chemosynthetic bacteria are:

 
 
 
 

561. Bacteria are found everywhere, except:

 
 
 
 

562. Simple polyembryony is found in :

 
 
 
 

563. Meiosis in Ulothrix takes place:

 
 
 
 

564. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. In Pteris, the archegonia are present:

 
 
 
 

568. Spirogyra represents the :

 
 
 
 

569. Cycas plant in appearance resembles :

 
 
 
 

570. Cyathia is characterized by:

 
 
 
 

571. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

572. Pteridophyta are also called:

 
 
 
 

573. Which of the following lichens is harmful?

 
 
 
 

574. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

579. Most primitive embryophytes are placed in :

 
 
 
 

580. Which of the following shows heterotrichous habit?

 
 
 
 

581. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

583. Heterosporous pteridophytes always form:

 
 
 
 

584. Reproduction in Rhizopus is:

 
 
 
 

585. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

589. How a fern differs from a moss?

 
 
 
 

590.

591. In Funaria :

 
 
 
 

592. The zygospore in Rhizopus on germination forms:

 
 
 
 

593. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

596. Male gametes in Dryopteris are:

 
 
 
 

597. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

599. What is mycorrhiza?

 
 
 
 

600. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

602. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

604. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

606. Funaria can be differentiated from Cycas :

 
 
 
 

607. The nucleus of bacteria is:

 
 
 
 

608. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

609. Chemosynthetic bacteria are:

 
 
 
 

610. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

612. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

614. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

615. Synzoospore is produced in:

 
 
 
 

616. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

618. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

620. Quarantine regulations are concerned with:

 
 
 
 

621. Bacteria are considered to be plants because they:

 
 
 
 

622. Smut of maize is caused by :

 
 
 
 

623. The most important property of yeast is:

 
 
 
 

624. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

626. Milk is converted to curd by:

 
 
 
 

627. Agar-agar is obtained from:

 
 
 
 

628. Antibiotics cure the disease by:

 
 
 
 

629. Cellular slime mold is:

 
 
 
 

630. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

637. Some diseases caused by bacteria are:

 
 
 
 

638. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

641. Viroids have:

 
 
 
 

642. Isomorphic type alternation of generation is found in:

 
 
 
 

643. Spirogyra differs from moss protonema in having :

 
 
 
 

644. Polystelic condition is found in:

 
 
 
 

645. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

648. Oswald Tippo’s classification was based on :

 
 
 
 

649. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

653. Triple antigen injection or vaccine are for:

 
 
 
 

654. The genetic material of poxvirus is:

 
 
 
 

655. Anoxygenic photosynthesis occurs in:

 
 
 
 

656. The disease symptom necrosis refers to :

 
 
 
 

657. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

659. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

661. The disease apple scab is caused by:

 
 
 
 

662. In Selaginella, the microsporangia are:

 
 
 
 

663. Winged seeds are found in :

 
 
 
 

664. Siphonogamy is found in:

 
 
 
 

665. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

667. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

669. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

671. In Cycas which structure is equivalent to stamen?

 
 
 
 

672. Virion refers to:

 
 
 
 

673. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

680. Liverworts are included in :

 
 
 
 

681. Rhizophore of Selaginella is:

 
 
 
 

682. Rice, pea, potato are :

 
 
 
 

683. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

685. Indusium in Dryopteris is:

 
 
 
 

686. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

691. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. The order generally ends with:

 
 
 
 

696. The ferns are usually found:

 
 
 
 

697. The smallest bacterium is:

 
 
 
 

698. Azolla and Salvinia both are:

 
 
 
 

699. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

700. Interferon is a:

 
 
 
 

701. Saccharomyces ludwigii ascus produces:

 
 
 
 

702. Bacteriophages have been used as:

 
 
 
 

703. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

707. What is the role of nitrifying bacteria?

 
 
 
 

708. Cyanophage is a virus that attacks:

 
 
 
 

709. Most of the lichens are composed of :

 
 
 
 

710. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

711. 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?

 
 
 
 

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

 
 
 
 

713. Placenta in fern is:

 
 
 
 

714. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

716. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

718. Yeast belongs to class:

 
 
 
 

719. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

723. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. The megasporangium of Selaginella is:

 
 
 
 

727. Which of the following is a monocot?

 
 
 
 

728. The sori in Dryopteris are found on:

 
 
 
 

729. To which class Riccia belongs :

 
 
 
 

730. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

733. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

735. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

737. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

739. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

741. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

744. Metulae are found in:

 
 
 
 

745. LSD is:

 
 
 
 

746. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

749. Nitrogen-fixing bacteria may be located:

 
 
 
 

750. In Pteris, the roots are:

 
 
 
 

751. Fruits are not found in:

 
 
 
 

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

 
 
 
 

753. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

755. Winged pollen grains are found in :

 
 
 
 

756. The lichens growing on rocks are called :

 
 
 
 

757. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

759. Seeds are characteristically found in:

 
 
 
 

760. The sporangiophores in Rhizopus are:

 
 
 
 

761. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

763. The group algae possesses representatives belonging to kingdom:

 
 
 
 

764. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

765. In dinoflagellates, the two flagella are:

 
 
 
 

766. Etiology includes the study of :

 
 
 
 

767. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

770. Zoogametes are not found in:

 
 
 
 

771. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

773. The development of sporangium in Selaginella is:

 
 
 
 

774. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

777. Club moss and Peat moss belong to:

 
 
 
 

778. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

782. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

785. Funaria are commonly found :

 
 
 
 

786. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

788. Which part of Riccia bears nurse cells?

 
 
 
 

789. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

791. Botulism is a:

 
 
 
 

792. The chromosomal number in:

 
 
 
 

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

 
 
 
 

794. The sporophyte of Riccia is represented by :

 
 
 
 

795. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

797. The first to isolate a plant virus was:

 
 
 
 

798. Streptomycin is obtained from:

 
 
 
 

799. Water-net is the name of:

 
 
 
 

800. Which among the following is a shrub?

 
 
 
 

801. Gametophyte is the main plant body in :

 
 
 
 

802. Pythium debaryanum is the causative agent of:

 
 
 
 

803. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

805. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

810. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

811. Rhizoids of Riccia are :

 
 
 
 

812. The root nodules of leguminous plants contain:

 
 
 
 

813. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

816. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

818. The mode of nutrition of bacteria is usually:

 
 
 
 

819. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

822. Which of the following is true for viruses?

 
 
 
 

823. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

826. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

828. In moss, sporophyte is formed on:

 
 
 
 

829. Black rust of wheat is caused by:

 
 
 
 

830. 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:

 
 
 
 

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

 
 
 
 

832. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

835. Fern phloem lacks:

 
 
 
 

836. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

842. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

844. Embryophyta includes:

 
 
 
 

845. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

846. The source of litmus is :

 
 
 
 

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

 
 
 
 

848. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

852. Which of the following is sago palm?

 
 
 
 

853. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

855. Select the wrong statement:

 
 
 
 

856. Which is a redwood tree?

 
 
 
 

857. An Hfr bacterium is one that contains:

 
 
 
 

858. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. Which is not true for Escherichia coli?

 
 
 
 

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