Quiz_Random

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

 
 
 
 

2. In binomial system most of the words are:

 
 
 
 

3. The smallest unit of classification is:

 
 
 
 

4. Kuru, a human disease is caused by:

 
 
 
 

5. Synzoospore is produced in:

 
 
 
 

6. Pteridophyta are also called:

 
 
 
 

7. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

9. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Heterocysts are found in :

 
 
 
 

14. Number of capsomeres forming capsid of TMV is:

 
 
 
 

15. Diphtheria is caused by:

 
 
 
 

16. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

25. The fern plant is:

 
 
 
 

26. The smallest bacterium is:

 
 
 
 

27. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Liverworts are included in :

 
 
 
 

31. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

33. Centric discoid form of diatom is:

 
 
 
 

34. The gametophyte of moss has distinct phases :

 
 
 
 

35. The lambda phase is a:

 
 
 
 

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

 
 
 
 

37. Which of the following is a monocot?

 
 
 
 

38. The prothallus of fern is:

 
 
 
 

39. The development of sporangium in Selaginella is:

 
 
 
 

40. Viruses have:

 
 
 
 

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

 
 
 
 

42. Quarantine regulations are concerned with:

 
 
 
 

43. Red rot of sugarcane is caused by :

 
 
 
 

44. The source of litmus is :

 
 
 
 

45. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

47. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

52. Which is a tautonym?

 
 
 
 

53. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

55. The archegonia of Selaginella are differentiated by:

 
 
 
 

56. Some diseases caused by bacteria are:

 
 
 
 

57. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

59. Spermatophyta are characterized by producing:

 
 
 
 

60. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

62. Seeds are characteristically found in :

 
 
 
 

63. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

65. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. Winged pollen grains are found in :

 
 
 
 

73. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. The tree fern is:

 
 
 
 

77. Rhizophore of Selaginella is:

 
 
 
 

78. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

80. Bacteria are placed under:

 
 
 
 

81. 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?

 
 
 
 

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

 
 
 
 

83. Enteric bacteria are those bacteria that live:

 
 
 
 

84. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

86. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

88. Bacteria are found everywhere, except:

 
 
 
 

89. Penicillin is obtained from:

 
 
 
 

90. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

93. The roots of Cycas are :

 
 
 
 

94. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

96. Common phycobiont in a lichen is :

 
 
 
 

97. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

99. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

101. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

104. Most primitive kind of flower is represented by:

 
 
 
 

105. All algae have:

 
 
 
 

106. The mode of nutrition of bacteria is usually:

 
 
 
 

107. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

109. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

111. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

113. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. Acetobacter is useful in:

 
 
 
 

117. Which group of algae have an incipient nucleus?

 
 
 
 

118. Cap cells are found in the filament of:

 
 
 
 

119. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

120. In Pteris, the archegonia are present:

 
 
 
 

121. The chromosomal number in:

 
 
 
 

122. The disease apple scab is caused by:

 
 
 
 

123. Chief constituents of bordeaux mixture are :

 
 
 
 

124. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

126. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

129. The orders generally have the uniform endings:

 
 
 
 

130. Black rust of wheat is caused by:

 
 
 
 

131. The fungi are mostly:

 
 
 
 

132. Yeast grows more rapidly in:

 
 
 
 

133. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

135. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

137. Psilotum is:

 
 
 
 

138. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

139. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

142. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

144. The microsporophylls on the cone of Cycas are :

 
 
 
 

145. The sporophyte of Riccia is represented by :

 
 
 
 

146. Chemosynthetic bacteria are:

 
 
 
 

147. The gametophyte of fern bears:

 
 
 
 

148. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

150. The lichens growing on rocks are called :

 
 
 
 

151. Cycas plant in appearance resembles :

 
 
 
 

152. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

154. Lichens show :

 
 
 
 

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

 
 
 
 

156. Germ theory of disease was proposed by:

 
 
 
 

157. The leafy fern plant represents the:

 
 
 
 

158. The stele of Dryopteris is a:

 
 
 
 

159. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

161. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

163. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

165. Which of the following are included in Tracheophyta?

 
 
 
 

166. Virus and bacteriophage are made-up of:

 
 
 
 

167. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

169. Maximum diversity of life forms occurs in :

 
 
 
 

170. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

171. Saccharomyces is used in:

 
 
 
 

172. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

174. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

176. Photosynthetic bacteria have:

 
 
 
 

177. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

181. Azolla growing in paddy fields helps in:

 
 
 
 

182. How a fern differs from a moss?

 
 
 
 

183. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

185. Bivalved siliceous shell or frustule occur in:

 
 
 
 

186. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

188. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

190. Yeast is a source of:

 
 
 
 

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

 
 
 
 

192.

193. Cycas is :

 
 
 
 

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

 
 
 
 

195. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

199. Which of the following is a parasitic algae?

 
 
 
 

200. Typhoid in man is caused by:

 
 
 
 

201. Lichens reproduce by :

 
 
 
 

202. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

205. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

207. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

209. The chief characteristic of bryophyta is that :

 
 
 
 

210. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. Some bacteria cannot be killed easily because of:

 
 
 
 

217. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. Choose the correct statement about Spirogyra:

 
 
 
 

221. The megasporangium of Selaginella is:

 
 
 
 

222. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

224. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

225. Metulae are found in:

 
 
 
 

226. Gram stain is used to:

 
 
 
 

227. Which of the following shows heterotrichous habit?

 
 
 
 

228. 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:

 
 
 
 

229. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

230. Botulism is a:

 
 
 
 

231. The term stele was given by:

 
 
 
 

232. Funaria can be differentiated from Cycas :

 
 
 
 

233. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. All protozoans possess:

 
 
 
 

237. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

240. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

242. Generic name of mango is:

 
 
 
 

243. Viruses are considered to be:

 
 
 
 

244. Which is absent from the xylem of Cycas?

 
 
 
 

245. Desired type of Cycas can be grown by:

 
 
 
 

246. Which causes red tide?

 
 
 
 

247. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. Bacteriophages have been used as:

 
 
 
 

251. Bacteria growing on synthetic medium are called:

 
 
 
 

252. The alga, Spirogyra are found in :

 
 
 
 

253. Which of the following are absent in Mycoplasma?

 
 
 
 

254. Which of the following lichens is harmful?

 
 
 
 

255. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

257. Which one of the following statement is wrong?

 
 
 
 

258. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

261. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

263. Heterospory and ligulate leaves are a feature of:

 
 
 
 

264. An alga which is rich in proteins:

 
 
 
 

265. Streptomycin is obtained from:

 
 
 
 

266. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

271. Most resistant spore in bacteria is:

 
 
 
 

272. In moss, conducting tissue is made up of

 
 
 
 

273. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

276. In Funaria :

 
 
 
 

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

 
 
 
 

278. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

280. Sporophyte of Funaria is :

 
 
 
 

281. Majority of lichens are :

 
 
 
 

282. Who discovered heterothallism in fungi?

 
 
 
 

283. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

287. Interferon is a:

 
 
 
 

288. Which class of Protozoa includes all parasitic forms?

 
 
 
 

289. Antibiotics cure the disease by:

 
 
 
 

290. Black rust of wheat is caused by:

 
 
 
 

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. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

295. Which bacteria convert nitrate into nitrogen?

 
 
 
 

296. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

302. Which is not found in bacteria?

 
 
 
 

303. The middle sterile part of capsule is called:

 
 
 
 

304. 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?

 
 
 
 

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

 
 
 
 

306. Pythium debaryanum is the causative agent of:

 
 
 
 

307. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

309. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

311. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

313. Mostly type of zygospore in Ulothrix is:

 
 
 
 

314. In moss, sporophyte is formed on:

 
 
 
 

315. Most of the lichens are composed of :

 
 
 
 

316. Oswald Tippo’s classification was based on :

 
 
 
 

317. Heterospory is the production of:

 
 
 
 

318. Transfusion tissue is present in the leaflet of:

 
 
 
 

319. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

322. Which lichen is called Reindeer moss?

 
 
 
 

323.

 

324. The order generally ends with:

 
 
 
 

325. Streptomyces falls under:

 
 
 
 

326. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

331. Funaria is a Bryophyta because :

 
 
 
 

332. Bryophyta have been placed in cryptogams because:

 
 
 
 

333. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

335. Funaria is :

 
 
 
 

336. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

338. Vegetative reproduction in Cycas is by means of :

 
 
 
 

339. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

341. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

343. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

346. Who discovered cyanophages?

 
 
 
 

347. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Most of the algae are :

 
 
 
 

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

 
 
 
 

354. Fruiting body of lichens is :

 
 
 
 

355. Botulinum toxin effects:

 
 
 
 

356. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

358. Which have the largest antherozoid?

 
 
 
 

359. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

362. In dinoflagellates, the two flagella are:

 
 
 
 

363. Male gametes in Dryopteris are:

 
 
 
 

364. The zygospore in Rhizopus on germination forms:

 
 
 
 

365. Detailed study of bacteriophage was made by:

 
 
 
 

366. Cocci types of bacteria are:

 
 
 
 

367. E coli is a:

 
 
 
 

368. The teeth of peristome of Funaria are :

 
 
 
 

369. Which is an exception to cell theory?

 
 
 
 

370. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

373. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

375. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

377. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

382. Azolla and Salvinia both are:

 
 
 
 

383. 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?

 
 
 
 

384. Ovules are not found enclosed in ovary in :

 
 
 
 

385. The mycelium of Rhizopus is:

 
 
 
 

386. An Hfr bacterium is one that contains:

 
 
 
 

387. Agar-agar is obtained from:

 
 
 
 

388. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

392. The leaves of Funaria are :

 
 
 
 

393. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

395. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

398. LSD is:

 
 
 
 

399. The phloem of vascular system of Cycas is :

 
 
 
 

400. Halophiles are the bacteria that require for growth:

 
 
 
 

401. Ovary is absent in:

 
 
 
 

402. The rhizoids of Funaria are :

 
 
 
 

403. Fern phloem lacks:

 
 
 
 

404. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

409. Gymnosperms could also be called as:

 
 
 
 

410. The largest known bacterium is:

 
 
 
 

411. Saccharomyces is well known for:

 
 
 
 

412. A gill of Agaricus:

 
 
 
 

413. Diploxylic vascular bundles are found in:

 
 
 
 

414. Cycas is:

 
 
 
 

415. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

417. The antibiotic is obtained from:

 
 
 
 

418. Longest known virus is:

 
 
 
 

419. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

421. Pinus is:

 
 
 
 

422. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

425. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

427. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. What is streptomycin?

 
 
 
 

432. Facultative parasite is:

 
 
 
 

433. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

435. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

439. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

441. Why is Cycas called a living fossil?

 
 
 
 

442. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

446. Heterosporous pteridophytes always form:

 
 
 
 

447. Ginkgo biloba is a:

 
 
 
 

448. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

453. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

454. Antibiotic has been extracted from :

 
 
 
 

455. The photosynthetic protists are:

 
 
 
 

456. In Gymnocarpeae the fruiting body is :

 
 
 
 

457. Fern prothallus is:

 
 
 
 

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

 
 
 
 

459.

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

 
 
 
 

461. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

463. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

467. The ascus of yeast contains:

 
 
 
 

468. Water-net is the name of:

 
 
 
 

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

 
 
 
 

470. 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:

 
 
 
 

471. The DNA of E coli is:

 
 
 
 

472. Which of the following does not contain chlorophyll?

 
 
 
 

473. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

475. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

477. Sleeping sickness disease in man is caused by:

 
 
 
 

478. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

480. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

482. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

484. Clostridium can:

 
 
 
 

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

 
 
 
 

486. Which is the correct statement about Selaginella?

 
 
 
 

487. Sexual reproduction in Rhizopus is by:

 
 
 
 

488. The antherozoids of Funaria are :

 
 
 
 

489. Which part of Riccia bears nurse cells?

 
 
 
 

490. Soil fertility is lost by the activities of:

 
 
 
 

491. Protists which are diploid reproduce sexually by:

 
 
 
 

492. Nannandria are:

 
 
 
 

493. 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:

 
 
 
 

494. Methanogens belong to:

 
 
 
 

495. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

501. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

503. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Which is the nuclear material in bacteria?

 
 
 
 

507. Most primitive group of vascular plants are:

 
 
 
 

508. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

510. Nitrogen-fixing bacteria may be located:

 
 
 
 

511. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

513. The leaves of Funaria are :

 
 
 
 

514. Lichens form the first community in

 
 
 
 

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

 
 
 
 

516. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

518. Disease resistant plant varieties can be produced by :

 
 
 
 

519. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

521. Broad spectrum antibiotic is, which:

 
 
 
 

522. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

525. Early blight of potato is caused by:

 
 
 
 

526. The central part of Funaria axis is :

 
 
 
 

527. Sometimes the bacterial cell is enclosed in:

 
 
 
 

528. To which class Riccia belongs :

 
 
 
 

529. Mycoplasma was discovered by:

 
 
 
 

530. The group algae possesses representatives belonging to kingdom:

 
 
 
 

531. In tracheophyta:

 
 
 
 

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

 
 
 
 

533. Which among the following is a shrub?

 
 
 
 

534. Select the wrong statement:

 
 
 
 

535. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

538. The largest alga is:

 
 
 
 

539. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

543. Reserve food in Euglena is:

 
 
 
 

544. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

546. 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:

 
 
 
 

547. Vascular cryptogam is the term used for :

 
 
 
 

548. Nitrifying bacteria play an important role by converting:

 
 
 
 

549. Lichens are indicators of :

 
 
 
 

550. Fruits are not found in:

 
 
 
 

551. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

553. Spermatophyta are characterized by producing:

 
 
 
 

554. Ulothrix produces :

 
 
 
 

555. Select the correct statement: (NEET 2016)

 
 
 
 

556. Leprosy is caused by:

 
 
 
 

557. In Cycas:

 
 
 
 

558. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

560. Roots are absent in :

 
 
 
 

561. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

563. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

565. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

570. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

572. Ectocarpus produces:

 
 
 
 

573. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

575. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

580. How is moss different from fern?

 
 
 
 

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

 
 
 
 

582. The chloroplast in Ulothrix is :

 
 
 
 

583. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

585. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

588. Plasmids are:

 
 
 
 

589. Absorptive nutrition is:

 
 
 
 

590. Mycoplasma is different from bacteria due to:

 
 
 
 

591. The genetic material of poxvirus is:

 
 
 
 

592. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

597. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

599. Lichens are ecologically important because :

 
 
 
 

600. Coenogamete is found in:

 
 
 
 

601. Gametophyte is the main plant body in :

 
 
 
 

602. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

604. Sexual reproduction of lichen is due to :

 
 
 
 

605. Pythium debaryanum is the causative agent of:

 
 
 
 

606. Which condition is found in Cycas?

 
 
 
 

607. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

609. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

612. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. Ergot is obtained from :

 
 
 
 

617. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

619. In Pteris, the roots are:

 
 
 
 

620. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

622. The fungi are usually:

 
 
 
 

623. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. Rhizoids of Riccia are :

 
 
 
 

635. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

638. Placenta in fern is:

 
 
 
 

639. 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?

 
 
 
 

640. Cryptogams include :

 
 
 
 

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

 
 
 
 

642. Wine turns sour because of:

 
 
 
 

643. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

648. Viroids have:

 
 
 
 

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

 
 
 
 

650. All archaebacteria lack:

 
 
 
 

651. Acellular slime mold is/are:

 
 
 
 

652. Photoautotrophic bacteria have:

 
 
 
 

653. In Herpes virus DNA is:

 
 
 
 

654. Which of the following is true for viruses?

 
 
 
 

655. Cycas is similar to a mustard plant :

 
 
 
 

656. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

657. The Rhizopus gametes are formed in:

 
 
 
 

658. Late blight of potato is caused by:

 
 
 
 

659. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

662. Oswald Tippo’s classification is:

 
 
 
 

663. The gametophyte produced by apospory is :

 
 
 
 

664. Most appropriate word for protozoans is:

 
 
 
 

665. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

668. Which of the following is a heterosporous pteridophyte?

 
 
 
 

669. The vascular bundles of Cycas stem are :

 
 
 
 

670. Rice, pea, potato are :

 
 
 
 

671. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

674. The fungi used as food are:

 
 
 
 

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

 
 
 
 

676. The nucleus of bacteria is:

 
 
 
 

677. Fern prothallus produces:

 
 
 
 

678. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

682. In Cycas the fertilization is:

 
 
 
 

683. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

685. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

687. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

690. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

694. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

696. Which statement is wrong in regard to bacteria?

 
 
 
 

697. Which is an edible fungus?

 
 
 
 

698. Amoeba is a member of the phylum:

 
 
 
 

699. The sexual reproductive organs in Rhizopus are:

 
 
 
 

700. Pteridophytes are also known as :

 
 
 
 

701. Who discovered streptomycin?

 
 
 
 

702. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

704. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

705. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

709. Anoxygenic photosynthesis occurs in:

 
 
 
 

710. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

713. Fruits are not found in Cycas because:

 
 
 
 

714. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

717. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

722. The young leaves of Cycas have :

 
 
 
 

723. Most common type of conjugation in Spirogyra is :

 
 
 
 

724. Yeast belongs to class:

 
 
 
 

725. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

728. Which of the following is sago palm?

 
 
 
 

729. Total parasites belong to:

 
 
 
 

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

 
 
 
 

731. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

733. Selaginella differs from Moss in having:

 
 
 
 

734. Which is a gametophytic tissue?

 
 
 
 

735. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

740. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

742. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

744. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

746. Iodine is obtained from:

 
 
 
 

747. Vascular tissue is found in :

 
 
 
 

748. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

750. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

751. Mucilaginous canals in Cycas are found in :

 
 
 
 

752. Lichen show :

 
 
 
 

753. Helotism word is used for the symbiosis between :

 
 
 
 

754. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

758. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

762. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

764. The disease symptom necrosis refers to :

 
 
 
 

765. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

768. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

770. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

772. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

774. Genetic material of TMV is:

 
 
 
 

775. Reproduction in Cycas takes place by :

 
 
 
 

776. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

778. Multicellular and jacketed sex organs are found in :

 
 
 
 

779. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

781. Water bloom is generally caused by :

 
 
 
 

782. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

784. The chloroplast of Chlamydomonas are:

 
 
 
 

785. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

787. What is a vector?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

791. Circular DNA is seen in:

 
 
 
 

792. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

798. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

800. Leaf spot of groundnut is caused by :

 
 
 
 

801. Ovules are not found enclosed in ovary of:

 
 
 
 

802. Which of the following applies to Selaginella?

 
 
 
 

803. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

805. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

810. The chief characteristic of class Ascomycetes is:

 
 
 
 

811. The most primitive vascular plants is:

 
 
 
 

812. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

814. Smut of maize is caused by :

 
 
 
 

815. Special feature of pollen grains of Pinus is :

 
 
 
 

816. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

819. Fairy ring is the name given to:

 
 
 
 

820. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

822. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

824. Ovary is absent in :

 
 
 
 

825. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

828. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

831. What is special feature of fern archegonia?

 
 
 
 

832. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

834. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

837. Spores of which plants have chloroplast:

 
 
 
 

838. Select the wrong statement:

 
 
 
 

839. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

845. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

847. Funaria are commonly found :

 
 
 
 

848. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

850. Cell walls of Gram-positive bacteria contain:

 
 
 
 

851. Which one of the following is a monocot?

 
 
 
 

852. Protistan algae obtain their food as:

 
 
 
 

853. Cycas revoluta is widely grown as :

 
 
 
 

854. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

856. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

859. Which of the following have a prokaryotic cell?

 
 
 
 

860.

861. Which is a fungicide?

 
 
 
 

862. Protozoans are considered animals because these are:

 
 
 
 

863. In moss, peristomial teeth are:

 
 
 
 

864. 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: