Quiz_Random

1. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

3. Spermatophyta are characterized by producing:

 
 
 
 

4. Lichens reproduce by :

 
 
 
 

5. LSD is:

 
 
 
 

6. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

8. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

10. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

12. The genetic material of poxvirus is:

 
 
 
 

13. In moss, peristomial teeth are:

 
 
 
 

14. Lichens form the first community in

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

18. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

23. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

25. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

27. The order generally ends with:

 
 
 
 

28. Virus and bacteriophage are made-up of:

 
 
 
 

29. Seeds are characteristically found in:

 
 
 
 

30. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. Facultative saprophyte is:

 
 
 
 

34. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

36. Generic name of mango is:

 
 
 
 

37. Which is not found in bacteria?

 
 
 
 

38. Soil fertility is lost by the activities of:

 
 
 
 

39. Woody climbers are known as :

 
 
 
 

40. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

42. Streptomyces falls under:

 
 
 
 

43. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Proembryo in Pinus is :

 
 
 
 

53. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

58. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

59. Diploxylic vascular bundles are found in:

 
 
 
 

60. Fern prothallus is:

 
 
 
 

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

 
 
 
 

62. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

64. Isomorphic type alternation of generation is found in:

 
 
 
 

65. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Which is a tautonym?

 
 
 
 

70. The megasporangium of Selaginella is:

 
 
 
 

71. The middle sterile part of capsule is called:

 
 
 
 

72. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

74. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

76. Enteric bacteria are those bacteria that live:

 
 
 
 

77. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Which have the largest antherozoid?

 
 
 
 

84. The prothallus of fern is:

 
 
 
 

85. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

93. The largest known bacterium is:

 
 
 
 

94. Gram stain is used to:

 
 
 
 

95. The chromosomal number in:

 
 
 
 

96. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

98. Virion refers to:

 
 
 
 

99. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

103. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

104. Citrus canker is caused by:

 
 
 
 

105. Anoxygenic photosynthesis occurs in:

 
 
 
 

106. Metulae are found in:

 
 
 
 

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

 
 
 
 

108. Bacteria growing on synthetic medium are called:

 
 
 
 

109. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

111. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

115. Funaria is :

 
 
 
 

116. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

118. Facultative parasite is:

 
 
 
 

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

 
 
 
 

120. Chemosynthetic bacteria are:

 
 
 
 

121. Which of the following have algal zone?

 
 
 
 

122. Who discovered cyanophages?

 
 
 
 

123. Late blight of potato is caused by :

 
 
 
 

124. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

126. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

128. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

130. In moss, conducting tissue is made up of

 
 
 
 

131. Cell walls of Gram-positive bacteria contain:

 
 
 
 

132. Fruits are not found in :

 
 
 
 

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

 
 
 
 

134. The seedless plants which possess vascular tissues are:

 
 
 
 

135. Most of the lichens are composed of :

 
 
 
 

136. Polystelic condition is found in:

 
 
 
 

137. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

139. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

141. In moss, sporogenous tissue arises from:

 
 
 
 

142. Which of the following statements is not correct?

 
 
 
 

143. Fruits are not found in Cycas because:

 
 
 
 

144. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

146. Which of the following lichens is harmful?

 
 
 
 

147. Each chloroplast in Spirogyra bears :

 
 
 
 

148. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

150. Cocci types of bacteria are:

 
 
 
 

151. In Selaginella, the microsporangia are:

 
 
 
 

152. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

154. The development of Selaginella embryo is:

 
 
 
 

155. The smallest unit of classification is:

 
 
 
 

156. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

158. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

160. What is mycorrhiza?

 
 
 
 

161. Red rot of sugarcane is caused by :

 
 
 
 

162. Rhizopus belongs to:

 
 
 
 

163. Ovary is absent in:

 
 
 
 

164. Which is a fungicide?

 
 
 
 

165. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

170. The fungi that grow on wood are called:

 
 
 
 

171. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

174. Indusium in Dryopteris is:

 
 
 
 

175. Fern prothallus produces:

 
 
 
 

176. Black rust of wheat is caused by:

 
 
 
 

177. Germination of the seed of Pinus is :

 
 
 
 

178. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

181. Fruits are not found in:

 
 
 
 

182. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

184. The plants of Funaria grow :

 
 
 
 

185. . Tapetum develops in:

 
 
 
 

186. Maximum diversity of life forms occurs in :

 
 
 
 

187. Clostridium can:

 
 
 
 

188. Pasteurization of milk involves heating for:

 
 
 
 

189. Fairy ring is the name given to:

 
 
 
 

190. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

194. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

196. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

197. Zoogametes are not found in:

 
 
 
 

198. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

201. Lichens are indicators of :

 
 
 
 

202. 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:

 
 
 
 

203. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

205. Which part of Riccia bears nurse cells?

 
 
 
 

206. Viroids have:

 
 
 
 

207. All algae have:

 
 
 
 

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

 
 
 
 

209. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

211. All protozoans possess:

 
 
 
 

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

 
 
 
 

213. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. The nucleus of bacteria is:

 
 
 
 

217. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. John Hutchinson divided dicots into two divisions:

 
 
 
 

221. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

223. The leafy fern plant represents the:

 
 
 
 

224. Botulism is a:

 
 
 
 

225. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

228. Gymnosperms could also be called as:

 
 
 
 

229. Bacteriophages have been used as:

 
 
 
 

230. Leaf spot of groundnut is caused by :

 
 
 
 

231. The gametophyte produced by apospory is :

 
 
 
 

232. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

233. Water-net is the name of:

 
 
 
 

234. The most primitive vascular plants is:

 
 
 
 

235. Selaginella differs from Moss in having:

 
 
 
 

236. The chief characteristic of class Ascomycetes is:

 
 
 
 

237. Pinus microsporophyll bears:

 
 
 
 

238. Fern plants are:

 
 
 
 

239. The antibiotic is obtained from:

 
 
 
 

240. Vascular cryptogam is the term used for :

 
 
 
 

241. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

243. Yeast belongs to class:

 
 
 
 

244. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

247. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. What is the role of nitrifying bacteria?

 
 
 
 

251. The ferns are usually found:

 
 
 
 

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

 
 
 
 

253. Spirogyra represents the :

 
 
 
 

254. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

258. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

261. In binomial system most of the words are:

 
 
 
 

262. Which of the following have a prokaryotic cell?

 
 
 
 

263. Botulinum toxin effects:

 
 
 
 

264. Cycas is different from mango in :

 
 
 
 

265. Which of the following is a parasitic algae?

 
 
 
 

266. The fungi are mostly:

 
 
 
 

267. Gametophyte is the main plant body in :

 
 
 
 

268. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

270. 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:

 
 
 
 

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

 
 
 
 

272. Most primitive kind of flower is represented by:

 
 
 
 

273. 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?

 
 
 
 

274. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

276. Mycoplasma was discovered by:

 
 
 
 

277. Sexual reproduction of lichen is due to :

 
 
 
 

278. Which one of the following statement is wrong?

 
 
 
 

279. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

282. What is absent in Deuteromycetes?

 
 
 
 

283. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

285. Ulothrix produces :

 
 
 
 

286. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

288. Placenta in fern is:

 
 
 
 

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

 
 
 
 

290. 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:

 
 
 
 

291. Male gametes in Dryopteris are:

 
 
 
 

292. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

294. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

296. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

298. Total parasites belong to:

 
 
 
 

299. Where does meiosis occur in yeast?

 
 
 
 

300. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

302. Pythium debaryanum is the causative agent of:

 
 
 
 

303. Which lichen is called Reindeer moss?

 
 
 
 

304. The ascus of yeast contains:

 
 
 
 

305. What is a vector?

 
 
 
 

306. Club moss is the common name of :

 
 
 
 

307. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

309. Which is absent from the xylem of Cycas?

 
 
 
 

310. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

312. Nitrogen-fixing bacteria may be located:

 
 
 
 

313. Streptomycin is obtained from:

 
 
 
 

314. In a bacteriophage, DNA is present in:

 
 
 
 

315. Which is the correct statement about Selaginella?

 
 
 
 

316. Absorptive nutrition is:

 
 
 
 

317. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

318. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

321. Mucilaginous canals in Cycas are found in :

 
 
 
 

322. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

324. Climbers are found in genus:

 
 
 
 

325. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

328. The group algae possesses representatives belonging to kingdom:

 
 
 
 

329. Cycas revoluta is widely grown as :

 
 
 
 

330. The first to isolate a plant virus was:

 
 
 
 

331. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

333. Embryo formation is not known in :

 
 
 
 

334. Mixed cropping helps :

 
 
 
 

335. Winged pollen grains are found in :

 
 
 
 

336. Cycas is :

 
 
 
 

337. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

338. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

340. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

346. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

348. The sporangia of Selaginella are attached:

 
 
 
 

349. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

351. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

352. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. Methanogens belong to:

 
 
 
 

356. Pollination drop is:

 
 
 
 

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

 
 
 
 

358. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

360. Roots are absent in :

 
 
 
 

361. The flagella of Chlamydomonas are:

 
 
 
 

362. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

366. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

368. The spermatozoids of Cycas are :

 
 
 
 

369. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

372. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

375. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

377. In Pteris, the archegonia are present:

 
 
 
 

378. The term stele was given by:

 
 
 
 

379. Cycas is similar to a mustard plant :

 
 
 
 

380. Chemosynthetic bacteria are:

 
 
 
 

381. The teeth of peristome of Funaria are :

 
 
 
 

382. Smut of maize is caused by :

 
 
 
 

383. Ovules are not found enclosed in ovary of:

 
 
 
 

384. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

387. Coenogamete is found in:

 
 
 
 

388. Lichens show :

 
 
 
 

389. The alga, Spirogyra are found in :

 
 
 
 

390. Liverworts are included in :

 
 
 
 

391. The mycelium of Rhizopus is:

 
 
 
 

392. Male gametophyte of Selaginella is found:

 
 
 
 

393. Detailed study of bacteriophage was made by:

 
 
 
 

394. Which family of bacteria can decompose a wide variety of organic compounds, natural or man-made, including inert ones like hydrocarbons? This property has actually been used by scientists to reduce pollution such as that from petroleum spillage:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

397. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

400. 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:

 
 
 
 

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

 
 
 
 

402. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

404. Red rot of sugarcane is caused by :

 
 
 
 

405. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

406. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

409. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

411. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

415. Reproduction in Cycas takes place by :

 
 
 
 

416. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

418. Iodine is obtained from :

 
 
 
 

419. Among the algae kelps are :

 
 
 
 

420. The sporophyte of Riccia is represented by :

 
 
 
 

421. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

423. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

429. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

431. Pasteur is famous for his:

 
 
 
 

432. The megaspore of Selaginella on germination produces:

 
 
 
 

433. Vascular tissue is found in :

 
 
 
 

434. Economic importance of bacteria lies in their being:

 
 
 
 

435. Lichens are pioneers of vegetation in a :

 
 
 
 

436. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

438. The Rhizopus is:

 
 
 
 

439. Which causes red tide?

 
 
 
 

440. Bryophyta have a special character from other plants:

 
 
 
 

441. Plasmids are:

 
 
 
 

442. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

445. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

447. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

449. The antherozoids of Funaria are :

 
 
 
 

450. Yeast grows more rapidly in:

 
 
 
 

451. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

460. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

462. The coralloid roots are :

 
 
 
 

463. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

465. Most of the algae are :

 
 
 
 

466. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

468. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

471. Wine turns sour because of:

 
 
 
 

472. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

475. Bivalved siliceous shell or frustule occur in:

 
 
 
 

476. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

477. Ovules are not found enclosed in ovary in :

 
 
 
 

478. Spermatophyta are characterized by producing:

 
 
 
 

479. Fern phloem lacks:

 
 
 
 

480. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

483. Which of the following applies to Selaginella?

 
 
 
 

484. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

486. The chloroplast in Ulothrix is :

 
 
 
 

487. Bentham and Hooker placed gymnosperms:

 
 
 
 

488. Broad spectrum antibiotic is, which:

 
 
 
 

489. The mode of nutrition of bacteria is usually:

 
 
 
 

490. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

494. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

496. Aflatoxin is produced by:

 
 
 
 

497. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

500. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

503. The largest alga is:

 
 
 
 

504. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

506. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

508. Yeast is a source of:

 
 
 
 

509. The lambda phase is a:

 
 
 
 

510. Oswald Tippo’s classification was based on :

 
 
 
 

511. Sometimes the bacterial cell is enclosed in:

 
 
 
 

512. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

513. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

515. In Cycas:

 
 
 
 

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

 
 
 
 

517. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

519. Fruiting body of lichens is :

 
 
 
 

520. In tracheophyta:

 
 
 
 

521. Typhoid in man is caused by:

 
 
 
 

522. The leaves of Funaria are :

 
 
 
 

523. Sleeping sickness disease in man is caused by:

 
 
 
 

524. Rice, pea, potato are :

 
 
 
 

525. Sporophyte of fern is:

 
 
 
 

526. An Hfr bacterium is one that contains:

 
 
 
 

527. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

531.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

538. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

539. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

541. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

543. Heterotrichous habit means :

 
 
 
 

544. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Ovary is absent in :

 
 
 
 

550. Parmelia belongs to :

 
 
 
 

551. Heterospory and ligulate leaves are a feature of:

 
 
 
 

552. Asexual reproductive body of Volvox is called:

 
 
 
 

553. The sporophyte of Riccia is :

 
 
 
 

554. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

556. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

561. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

564. The orders generally have the uniform endings:

 
 
 
 

565. The tree fern is:

 
 
 
 

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

 
 
 
 

567. Vegetative reproduction in Cycas is by means of :

 
 
 
 

568. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

569. Water bloom is generally caused by :

 
 
 
 

570. Halophiles are the bacteria that require for growth:

 
 
 
 

571. Protistan algae obtain their food as:

 
 
 
 

572. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

574. First animal pathogenic virus was discovered by:

 
 
 
 

575. Circular DNA is seen in:

 
 
 
 

576. Pasteurized milk is:

 
 
 
 

577. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

579. Standard size of a herbarium sheet is:

 
 
 
 

580. All archaebacteria lack:

 
 
 
 

581. The lichens growing on rocks are called :

 
 
 
 

582. Mycoplasma are:

 
 
 
 

583. Chief constituents of bordeaux mixture are :

 
 
 
 

584.

585. Which class of Protozoa includes all parasitic forms?

 
 
 
 

586. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

588. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

596. Which is a gametophytic tissue?

 
 
 
 

597. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. The disease apple scab is caused by:

 
 
 
 

604. Winged seeds are found in :

 
 
 
 

605. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

607. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

609. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

612. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

615. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

617. The fern plant is:

 
 
 
 

618. Endemic plants are characterised by their:

 
 
 
 

619. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

620. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

623. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

625. 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?

 
 
 
 

626. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

628. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

635.

636. Number of capsomeres forming capsid of TMV is:

 
 
 
 

637. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

640. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. Which of the following shows heterotrichous habit?

 
 
 
 

644. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

645. Meristele of fern is:

 
 
 
 

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

 
 
 
 

647. What is streptomycin?

 
 
 
 

648. Green plants are classified as :

 
 
 
 

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

 
 
 
 

650. Infective part of virus was discovered by:

 
 
 
 

651. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

653. The gametophyte of moss has distinct phases :

 
 
 
 

654. Rhizopus and yeast are usually:

 
 
 
 

655. Spores of which plants have chloroplast:

 
 
 
 

656. E coli is a:

 
 
 
 

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

 
 
 
 

658. 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:

 
 
 
 

659. Which is a redwood tree?

 
 
 
 

660. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

666. Funaria is :

 
 
 
 

667. Cleavage polyembryony is found in :

 
 
 
 

668. The chloroplast of Chlamydomonas are:

 
 
 
 

669. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

671. Simple polyembryony is found in :

 
 
 
 

672. Photoautotrophic bacteria have:

 
 
 
 

673. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

675. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

677. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

680. Rhizophore of Selaginella is:

 
 
 
 

681. Cryptogams include :

 
 
 
 

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

 
 
 
 

683. Saccharomyces is well known for:

 
 
 
 

684. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

687. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

689. Meiosis in Ulothrix takes place:

 
 
 
 

690. Club moss and Peat moss belong to:

 
 
 
 

691. Interferon is a:

 
 
 
 

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

 
 
 
 

693. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

697. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

699. What are Cyanobacteria?

 
 
 
 

700. Longest known virus is:

 
 
 
 

701. Ginkgo biloba is a:

 
 
 
 

702. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

704. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

706. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

708. Embryophyta includes :

 
 
 
 

709. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

711. The archegonia of Selaginella are differentiated by:

 
 
 
 

712. Early blight of potato is caused by:

 
 
 
 

713. Which of the following is true for viruses?

 
 
 
 

714. Funaria can be differentiated from Cycas :

 
 
 
 

715. Siphonogamy is found in:

 
 
 
 

716. In dinoflagellates, the two flagella are:

 
 
 
 

717. The truncated cone of HIV consists of:

 
 
 
 

718. The photosynthetic protists are:

 
 
 
 

719. Most common type of conjugation in Spirogyra is :

 
 
 
 

720. Lichen show :

 
 
 
 

721. Most primitive embryophytes are placed in:

 
 
 
 

722. Psilotum is:

 
 
 
 

723. True sexuality is not found in:

 
 
 
 

724. Ovules are not found enclosed in ovary in :

 
 
 
 

725. Which is not true for Escherichia coli?

 
 
 
 

726. Heterocysts are found in :

 
 
 
 

727. Protists which are diploid reproduce sexually by:

 
 
 
 

728. Who discovered streptomycin?

 
 
 
 

729. Discovery of penicillin was based on:

 
 
 
 

730. Bacteria are found everywhere, except:

 
 
 
 

731. The chief characteristic of bryophyta is that :

 
 
 
 

732. Green plants are classified as:

 
 
 
 

733. White rust of crucifers is caused by:

 
 
 
 

734. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

736. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

739. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

741. Pollination in Pinus is :

 
 
 
 

742. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

745. 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:

 
 
 
 

746. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

750. To which class Riccia belongs :

 
 
 
 

751. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

753. Amoeba is a member of the phylum:

 
 
 
 

754. The Rhizopus gametes are formed in:

 
 
 
 

755. Who named prion?

 
 
 
 

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

 
 
 
 

757. Mycoplasma are sensitive to:

 
 
 
 

758. Which of the following does not contain chlorophyll?

 
 
 
 

759. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

761. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

763. Iodine is obtained from:

 
 
 
 

764. Select the wrong statement:

 
 
 
 

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

 
 
 
 

766. Etiology includes the study of :

 
 
 
 

767. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. The fungi used as food are:

 
 
 
 

772. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

775. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

778. Why is Cycas called a living fossil?

 
 
 
 

779. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

782. Redness of red sea is due to :

 
 
 
 

783. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

785. In angiosperms double fertilization represents:

 
 
 
 

786. The young leaves of Cycas have :

 
 
 
 

787. The sexual reproductive organs in Rhizopus are:

 
 
 
 

788. The microsporophylls on the cone of Cycas are :

 
 
 
 

789. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. Viruses have:

 
 
 
 

793. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

801. Which bacteria convert nitrate into nitrogen?

 
 
 
 

802. The root nodules of leguminous plants contain:

 
 
 
 

803.

 

804. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

806. The archegonia in Selaginella develop on:

 
 
 
 

807. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

809. Which organisms are the oldest life forms?

 
 
 
 

810. Diphtheria is caused by:

 
 
 
 

811. In Herpes virus DNA is:

 
 
 
 

812. Linnaeus is credited with introducing:

 
 
 
 

813. Bacteria which are spherical are called:

 
 
 
 

814. Black rust of wheat is caused by:

 
 
 
 

815. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

819. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

821. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

823. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

830. Bacteria were first discovered by:

 
 
 
 

831. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

833. Kuru, a human disease is caused by:

 
 
 
 

834. In moss, calyptra is formed from:

 
 
 
 

835. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

838. In Funaria, calyptra is derived from :

 
 
 
 

839. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

848. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

850. Sporophyte of Funaria is :

 
 
 
 

851. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

854. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

857. Desired type of Cycas can be grown by:

 
 
 
 

858. Common phycobiont in a lichen is :

 
 
 
 

859. Select the wrong statement:

 
 
 
 

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

 
 
 
 

861. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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