Quiz_Random

1. Plasmids are:

 
 
 
 

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

 
 
 
 

3. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

5. Usually, bacteria reproduce by:

 
 
 
 

6. Mostly type of zygospore in Ulothrix is:

 
 
 
 

7. The sporangia of Selaginella are attached:

 
 
 
 

8. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

10. Typhoid in man is caused by:

 
 
 
 

11. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Which is a redwood tree?

 
 
 
 

16. Which of the following is true for Selaginella?

 
 
 
 

17. Rice, pea, potato are :

 
 
 
 

18. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

20. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

22. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

24. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

25. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

27. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

29. What is absent in Deuteromycetes?

 
 
 
 

30. Polystelic condition is found in:

 
 
 
 

31. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

33. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

35. Redness of red sea is due to :

 
 
 
 

36. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

38. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. Mycoplasma are sensitive to:

 
 
 
 

42. The leaf of Cycas shows:

 
 
 
 

43. Nitrogen-fixing bacteria may be located:

 
 
 
 

44. The gametophyte of moss has distinct phases :

 
 
 
 

45. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

47. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Cycas is :

 
 
 
 

51. Lichens are indicators of :

 
 
 
 

52. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

54. Lichens reproduce by :

 
 
 
 

55. Centric discoid form of diatom is:

 
 
 
 

56. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

58. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

60. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

66. Heterocysts are found in :

 
 
 
 

67. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. Endemic plants are characterised by their:

 
 
 
 

71. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

72. Funaria are commonly found :

 
 
 
 

73. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

75. Seeds are characteristically found in :

 
 
 
 

76. The teeth of peristome of Funaria are :

 
 
 
 

77. The rhizoids of Funaria are :

 
 
 
 

78.

79. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

81. Pneumonia is caused by:

 
 
 
 

82. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

87. 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?

 
 
 
 

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

 
 
 
 

89. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Nitrifying bacteria play an important role by converting:

 
 
 
 

95. Among the algae kelps are :

 
 
 
 

96. Bivalved siliceous shell or frustule occur in:

 
 
 
 

97. Mycoplasma are:

 
 
 
 

98. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

102. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

109. Broad spectrum antibiotic is, which:

 
 
 
 

110. Ovules are not found enclosed in ovary in :

 
 
 
 

111. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

113. The zoospores of Ulothrix are :

 
 
 
 

114. Mycoplasma was discovered by:

 
 
 
 

115. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

120. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

122. Ovules are not found enclosed in ovary in :

 
 
 
 

123. Kuru, a human disease is caused by:

 
 
 
 

124. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

127. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

130. Spirogyra differs from moss protonema in having :

 
 
 
 

131. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. Pinus gerardiana is :

 
 
 
 

139. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

141. Number of capsomeres forming capsid of TMV is:

 
 
 
 

142. Pollination drop is:

 
 
 
 

143. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

147. In dinoflagellates, the two flagella are:

 
 
 
 

148. What is mycorrhiza?

 
 
 
 

149. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

153. The smallest unit of classification is:

 
 
 
 

154. Which of the following is true for viruses?

 
 
 
 

155. John Hutchinson divided dicots into two divisions:

 
 
 
 

156. Pasteur is famous for his:

 
 
 
 

157. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

159. The spermatozoids of Cycas are :

 
 
 
 

160. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

163. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

165. In moss, sporophyte is formed on:

 
 
 
 

166. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

168. Virion refers to:

 
 
 
 

169. Where does meiosis occur in yeast?

 
 
 
 

170. Pteridophytes are also known as :

 
 
 
 

171. Red rot of sugarcane is caused by :

 
 
 
 

172. Which one of the following statement is wrong?

 
 
 
 

173. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

175. The plants of Funaria grow :

 
 
 
 

176. Fern plants are:

 
 
 
 

177. Mycoplasma is different from bacteria due to:

 
 
 
 

178. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

180. Discovery of penicillin was based on:

 
 
 
 

181. Fruits are not found in :

 
 
 
 

182. The roots of Cycas are :

 
 
 
 

183. Which of the following are absent in Mycoplasma?

 
 
 
 

184. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

186. 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:

 
 
 
 

187. Spermatophyta are characterized by producing:

 
 
 
 

188. LSD is:

 
 
 
 

189. The coralloid roots are :

 
 
 
 

190. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

191. Yeast is a source of:

 
 
 
 

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

 
 
 
 

193. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

195. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

199. The photosynthetic protists are:

 
 
 
 

200. The gametophyte of fern bears:

 
 
 
 

201. Ulothrix produces :

 
 
 
 

202. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

204. Which condition is found in Cycas?

 
 
 
 

205. To which country Antony van Leeuwenhoek belong?

 
 
 
 

206. Diphtheria is caused by:

 
 
 
 

207. Linnaeus is credited with introducing:

 
 
 
 

208. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

210. E coli is a:

 
 
 
 

211. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

213. Male gametophyte of Selaginella is found:

 
 
 
 

214. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

217. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

222. Botulinum toxin effects:

 
 
 
 

223. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

225. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

227. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

230. The sporophyte of Riccia is :

 
 
 
 

231. Green plants are classified as :

 
 
 
 

232. Who among the following discovered virus?

 
 
 
 

233. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. The antherozoids of Funaria are :

 
 
 
 

237. Black rust of wheat is caused by:

 
 
 
 

238. The sporangium of fern contains nearly:

 
 
 
 

239. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

242. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

244. The sporophyte of Riccia is represented by :

 
 
 
 

245. The upper region of moss capsule is :

 
 
 
 

246. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

248. Which is not found in bacteria?

 
 
 
 

249. Disease resistant plant varieties can be produced by :

 
 
 
 

250. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

252. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

256. In Gymnosperms endosperm is a:

 
 
 
 

257. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

259. Agar-agar is obtained from:

 
 
 
 

260. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

262. Lichens are the indicator of pollution :

 
 
 
 

263. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

266. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

268. Pollination in Cycas takes place by :

 
 
 
 

269. Zoogametes are not found in:

 
 
 
 

270. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

272. Which among the following is a shrub?

 
 
 
 

273.

 

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

 
 
 
 

275. The root nodules of leguminous plants contain:

 
 
 
 

276. An alga which is rich in proteins:

 
 
 
 

277. Reserve food in Euglena is:

 
 
 
 

278. Embryophyta includes:

 
 
 
 

279. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. Embryophyta includes :

 
 
 
 

284. The orders generally have the uniform endings:

 
 
 
 

285. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

287. Select the wrong statement:

 
 
 
 

288. Absorptive nutrition is:

 
 
 
 

289. Which part of Riccia bears nurse cells?

 
 
 
 

290. Which is the correct statement about Selaginella?

 
 
 
 

291. Meristele of fern is:

 
 
 
 

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

 
 
 
 

293. The DNA of E coli is:

 
 
 
 

294. 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:

 
 
 
 

295. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

297. Water-net is the name of:

 
 
 
 

298. Protists which are diploid reproduce sexually by:

 
 
 
 

299. The seedless plants which possess vascular tissues are:

 
 
 
 

300. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

303. The tallest moss in the world is :

 
 
 
 

304. Psilotum is:

 
 
 
 

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

 
 
 
 

306. Reproduction in Rhizopus is:

 
 
 
 

307. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

308. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

311. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

313. Clostridium can:

 
 
 
 

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

 
 
 
 

315. Leaf spot of groundnut is caused by :

 
 
 
 

316. Which of the following applies to Selaginella?

 
 
 
 

317. Facultative parasite is:

 
 
 
 

318. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

322. In Herpes virus DNA is:

 
 
 
 

323. The lambda phase is a:

 
 
 
 

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

 
 
 
 

325. In moss, conducting tissue is made up of

 
 
 
 

326. What is a vector?

 
 
 
 

327. Banana bunchy top is caused by :

 
 
 
 

328. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

330. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

332. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

338. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

340. The largest alga is:

 
 
 
 

341. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

343. Who discovered streptomycin?

 
 
 
 

344. The first to isolate a plant virus was:

 
 
 
 

345. The leaves of Funaria are :

 
 
 
 

346. Gymnosperms could also be called as:

 
 
 
 

347. Who named prion?

 
 
 
 

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

 
 
 
 

349. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

354. . Tapetum develops in:

 
 
 
 

355. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

358. Oswald Tippo’s classification is:

 
 
 
 

359. A gill of Agaricus:

 
 
 
 

360. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

362. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

364. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

367. Special feature of pollen grains of Pinus is :

 
 
 
 

368. Botulism is a:

 
 
 
 

369. Each chloroplast in Spirogyra bears :

 
 
 
 

370. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

372. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

373. 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:

 
 
 
 

374. In Selaginella, the microsporangia are:

 
 
 
 

375. 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:

 
 
 
 

376. Most appropriate word for protozoans is:

 
 
 
 

377. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

382. Which statement is wrong in regard to bacteria?

 
 
 
 

383. The Rhizopus gametes are formed in:

 
 
 
 

384. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

386. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

387. Which is absent from the xylem of Cycas?

 
 
 
 

388. Bacteria were first discovered by:

 
 
 
 

389. The young leaves of Cycas have :

 
 
 
 

390. In tracheophyta:

 
 
 
 

391. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

393. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

395. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

398. Viroids have:

 
 
 
 

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

 
 
 
 

400. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

402. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

405. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

407. In moss, calyptra is formed from:

 
 
 
 

408. Chemosynthetic bacteria are:

 
 
 
 

409. Multicellular and jacketed sex organs are found in :

 
 
 
 

410. The Rhizopus is:

 
 
 
 

411. Chemosynthetic bacteria are:

 
 
 
 

412. Methanogens belong to:

 
 
 
 

413. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

415. All protozoans possess:

 
 
 
 

416. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

418. Fruiting body of lichens is :

 
 
 
 

419. Tautonyms are illegitimate in:

 
 
 
 

420. Wine turns sour because of:

 
 
 
 

421. Pasteurized milk is:

 
 
 
 

422. Which is a gametophytic tissue?

 
 
 
 

423. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

425. 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?

 
 
 
 

426. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

428. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

432. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

436. In Cycas microsporangia are borne on:

 
 
 
 

437. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

439. Helotism word is used for the symbiosis between :

 
 
 
 

440. Which organisms are the oldest life forms?

 
 
 
 

441. Sexual reproduction of lichen is due to :

 
 
 
 

442.

443. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

445. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

448. Roots are absent in :

 
 
 
 

449. Pteridophyta are also called:

 
 
 
 

450. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

452. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Spirogyra represents the :

 
 
 
 

456. Viruses have:

 
 
 
 

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

 
 
 
 

458. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

460. Maximum diversity of life forms occurs in :

 
 
 
 

461. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

463. Black rust of wheat is caused by:

 
 
 
 

464. The megaspore of Selaginella on germination produces:

 
 
 
 

465. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

466. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

470. Funaria can be differentiated from Cycas :

 
 
 
 

471. The fern plant is:

 
 
 
 

472. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

475. Ovary is absent in:

 
 
 
 

476. All algae have:

 
 
 
 

477. Which is not true for Escherichia coli?

 
 
 
 

478. In moss, stomata are found:

 
 
 
 

479. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

483. The prothallus of fern represents the plant:

 
 
 
 

484. Enzymes are absent in:

 
 
 
 

485. The disease symptom necrosis refers to :

 
 
 
 

486. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

488. The fungi are mostly:

 
 
 
 

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

 
 
 
 

490. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

492. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

495. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

499. Ovules are not found enclosed in ovary of:

 
 
 
 

500. The antibiotic is obtained from:

 
 
 
 

501. Smallpox is caused by:

 
 
 
 

502. In Gymnocarpeae the fruiting body is :

 
 
 
 

503. First animal pathogenic virus was discovered by:

 
 
 
 

504. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. 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?

 
 
 
 

508. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

509. Which is an edible fungus?

 
 
 
 

510. Which is a fungicide?

 
 
 
 

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

 
 
 
 

512. Downy mildew disease is caused by :

 
 
 
 

513. In binomial system most of the words are:

 
 
 
 

514. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

516. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

518. 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:

 
 
 
 

519. What are plasmids?

 
 
 
 

520. Placenta in fern is:

 
 
 
 

521. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

523. Red rot of sugarcane is caused by:

 
 
 
 

524. To which class Riccia belongs :

 
 
 
 

525. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

527. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

529. The mycelium of Rhizopus is:

 
 
 
 

530. The zygospore in Rhizopus on germination forms:

 
 
 
 

531. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

533. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

535. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

536. The similarity between cyanobacteria and bacteria:

 
 
 
 

537. Which fixes atmospheric nitrogen?

 
 
 
 

538. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

545. Cap cells are found in the filament of:

 
 
 
 

546. Most primitive group of vascular plants are:

 
 
 
 

547. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

552. Antibiotics cure the disease by:

 
 
 
 

553. Chief constituents of bordeaux mixture are :

 
 
 
 

554. Yeast grows more rapidly in:

 
 
 
 

555. Cycas plant in appearance resembles :

 
 
 
 

556. Germination of the seed of Pinus is :

 
 
 
 

557. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

560. Club moss is the common name of :

 
 
 
 

561. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

563. Black rust of wheat is caused by:

 
 
 
 

564. The fungi used as food are:

 
 
 
 

565. What are Cyanobacteria?

 
 
 
 

566. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

569. Water bloom is generally caused by :

 
 
 
 

570. Standard size of a herbarium sheet is:

 
 
 
 

571. The chloroplast in Ulothrix is :

 
 
 
 

572. The source of litmus is :

 
 
 
 

573. Pseudomycelium is found in:

 
 
 
 

574. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. Which of the following have algal zone?

 
 
 
 

579. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

582. The order generally ends with:

 
 
 
 

583. Which bacteria convert nitrate into nitrogen?

 
 
 
 

584. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

587. Ethylene oxide is widely used to:

 
 
 
 

588. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

590. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

592. The role of meiosis is for:

 
 
 
 

593. Funaria is :

 
 
 
 

594. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

597. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

598. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. Winged pollen grains are found in :

 
 
 
 

602. Azolla and Salvinia both are:

 
 
 
 

603. Aflatoxin is produced by:

 
 
 
 

604. Which is an exception to cell theory?

 
 
 
 

605. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

606. Most primitive embryophytes are placed in :

 
 
 
 

607. Circular DNA is seen in:

 
 
 
 

608. True sexuality is not found in:

 
 
 
 

609. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

612. In Cycas the fertilization is:

 
 
 
 

613. Some biologists have used the term Mycetozoa for:

 
 
 
 

614. Sporophyte of Funaria is :

 
 
 
 

615. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

617. Cleavage polyembryony is found in :

 
 
 
 

618. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

621. The tree fern is:

 
 
 
 

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

 
 
 
 

623. Which of the following is a heterosporous pteridophyte?

 
 
 
 

624. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

626. Anoxygenic photosynthesis occurs in:

 
 
 
 

627. Woody climbers are known as :

 
 
 
 

628. Most of the algae are :

 
 
 
 

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

 
 
 
 

630. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

632. In Pteris, the roots are:

 
 
 
 

633. The megasporangium of Selaginella is:

 
 
 
 

634. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

636. Lichens show :

 
 
 
 

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

 
 
 
 

638. Which of the following shows heterotrichous habit?

 
 
 
 

639. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. The most primitive vascular plants is:

 
 
 
 

645. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

647. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

649. In Funaria :

 
 
 
 

650. Vascular cryptogams is the term used for:

 
 
 
 

651. In Cycas which structure is equivalent to stamen?

 
 
 
 

652. Azolla growing in paddy fields helps in:

 
 
 
 

653. Total parasites belong to:

 
 
 
 

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

 
 
 
 

655. Funaria is :

 
 
 
 

656. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. Bacteriophages have been used as:

 
 
 
 

661. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

663. Longest known virus is:

 
 
 
 

664. Lichens form the first community in

 
 
 
 

665. Majority of lichens are :

 
 
 
 

666. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

668. How is moss different from fern?

 
 
 
 

669. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

673. The two conjugating gametangia of Rhizopus are:

 
 
 
 

674. Vascular cryptogam is the term used for :

 
 
 
 

675. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

677. Lichen show :

 
 
 
 

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

 
 
 
 

679. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

680. Generic name of mango is:

 
 
 
 

681. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

685. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

687. The leaves of Funaria are :

 
 
 
 

688. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

690. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

693. Aflatoxin is produced as a product in :

 
 
 
 

694. Cycas is similar to a mustard plant :

 
 
 
 

695. Which causes red tide?

 
 
 
 

696. The term stele was given by:

 
 
 
 

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

 
 
 
 

698. Which of the following are included in Tracheophyta?

 
 
 
 

699. Seeds are characteristically found in:

 
 
 
 

700. Pythium debaryanum is the causative agent of:

 
 
 
 

701. White rust of crucifers is caused by:

 
 
 
 

702. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. All archaebacteria lack:

 
 
 
 

706. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

708. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

713. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

722. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

727. Etiology includes the study of :

 
 
 
 

728. What is streptomycin?

 
 
 
 

729. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

731. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

733. Early blight of potato is caused by:

 
 
 
 

734. Green plants are classified as:

 
 
 
 

735. One of the distinctive feature of Spirogyra is :

 
 
 
 

736. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

738. The ferns are usually found:

 
 
 
 

739. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

741. NBG of Lucknow is now named as:

 
 
 
 

742. The development of sporangium in Selaginella is:

 
 
 
 

743. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

746. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

748. Fern prothallus is:

 
 
 
 

749. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

751. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Ergot is obtained from :

 
 
 
 

755. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

758. 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?

 
 
 
 

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

 
 
 
 

760. Which lichen is called Reindeer moss?

 
 
 
 

761. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

763. Lichens are pioneers of vegetation in a :

 
 
 
 

764. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

766. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

775. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

778. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

780. The largest known bacterium is:

 
 
 
 

781. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. Cocci types of bacteria are:

 
 
 
 

785. Streptomycin is obtained from:

 
 
 
 

786. Fruits are not found in:

 
 
 
 

787. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

789. The nucleus of bacteria is:

 
 
 
 

790. 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:

 
 
 
 

791. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

793. Enteric bacteria are those bacteria that live:

 
 
 
 

794. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

796. The truncated cone of HIV consists of:

 
 
 
 

797. Cycas is:

 
 
 
 

798. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

800. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

803. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807.

808. Heterospory is the production of:

 
 
 
 

809. The sori in Dryopteris are found on:

 
 
 
 

810. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. Leprosy is caused by:

 
 
 
 

816. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

818. Genetic material of TMV is:

 
 
 
 

819. Facultative saprophyte is:

 
 
 
 

820. Which of the following lichens is harmful?

 
 
 
 

821. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

823. Desired type of Cycas can be grown by:

 
 
 
 

824. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

826. The fungi are usually:

 
 
 
 

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

 
 
 
 

828. Small epidermal swellings due to infection are called :

 
 
 
 

829. The smallest bacterium is:

 
 
 
 

830. Little leaf disease of Brinjal is caused by:

 
 
 
 

831. Viruses are considered to be:

 
 
 
 

832. Rhizopus and yeast are usually:

 
 
 
 

833. The central part of Funaria axis is :

 
 
 
 

834. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

840. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

845. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

849. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

852. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

854. The development of Selaginella embryo is:

 
 
 
 

855. The chief characteristic of class Ascomycetes is:

 
 
 
 

856. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

858. Indusium in Dryopteris is:

 
 
 
 

859. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

862. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

864. Fern prothallus produces: