Quiz_Random

1. Spirogyra represents the :

 
 
 
 

2. The chloroplast in Ulothrix is :

 
 
 
 

3. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

5. Meiosis in Ulothrix takes place:

 
 
 
 

6. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

8. The nucleus of bacteria is:

 
 
 
 

9. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Amoeba is a member of the phylum:

 
 
 
 

14. Lichens are ecologically important because :

 
 
 
 

15. The ferns are usually found:

 
 
 
 

16. What are Cyanobacteria?

 
 
 
 

17. Which part of Riccia bears nurse cells?

 
 
 
 

18. The gametophyte of fern is as:

 
 
 
 

19. Diploxylic vascular bundles are found in:

 
 
 
 

20. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

22. What is special feature of fern archegonia?

 
 
 
 

23. Plasmids are:

 
 
 
 

24. Typhoid in man is caused by:

 
 
 
 

25. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

31. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

32. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Aflatoxin is produced by:

 
 
 
 

36. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

38. The seedless plants which possess vascular tissues are:

 
 
 
 

39. Which is a gametophytic tissue?

 
 
 
 

40. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

41. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

43. 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:

 
 
 
 

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

 
 
 
 

45. The gametophyte of fern bears:

 
 
 
 

46. Isomorphic type alternation of generation is found in:

 
 
 
 

47. Ergot of rye is caused by:

 
 
 
 

48. The leafy fern plant represents the:

 
 
 
 

49. The development of sporangium in Selaginella is:

 
 
 
 

50. Ovules are not found enclosed in ovary in :

 
 
 
 

51. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

53. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. 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?

 
 
 
 

58. In Cycas the fertilization is:

 
 
 
 

59. The fungi are usually:

 
 
 
 

60. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

62. Gymnosperms could also be called as:

 
 
 
 

63. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

65. Red rot of sugarcane is caused by:

 
 
 
 

66. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

73. Which is a fungicide?

 
 
 
 

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

 
 
 
 

75. All algae have:

 
 
 
 

76. Most primitive kind of flower is represented by:

 
 
 
 

77. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

78. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

89. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

91. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

93. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

98. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

100. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

105. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

107. 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:

 
 
 
 

108. Water-borne bacterial diseases are:

 
 
 
 

109. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

113. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

121. Most primitive embryophytes are placed in:

 
 
 
 

122. Little leaf disease of Brinjal is caused by:

 
 
 
 

123. Lichens are indicators of :

 
 
 
 

124. Gametophyte is the main plant body in :

 
 
 
 

125. Which is an exception to cell theory?

 
 
 
 

126. The largest alga is:

 
 
 
 

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

 
 
 
 

128. Pasteur is famous for his:

 
 
 
 

129. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. Generic name of mango is:

 
 
 
 

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

 
 
 
 

135. Interferon is a:

 
 
 
 

136. Some bacteria cannot be killed easily because of:

 
 
 
 

137. Which statement is wrong in regard to bacteria?

 
 
 
 

138. The lambda phase is a:

 
 
 
 

139. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

143. The spermatozoids of Cycas are :

 
 
 
 

144. Fruits are not found in:

 
 
 
 

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

 
 
 
 

146. Soil fertility is lost by the activities of:

 
 
 
 

147. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

148. Which of the following shows heterotrichous habit?

 
 
 
 

149. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

151. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

153. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

157. White rust of crucifers is caused by:

 
 
 
 

158. Which is a tautonym?

 
 
 
 

159. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

161. To which country Antony van Leeuwenhoek belong?

 
 
 
 

162. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. In Funaria, calyptra is derived from :

 
 
 
 

166. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

168. Pythium debaryanum is the causative agent of:

 
 
 
 

169. Proembryo in Pinus is :

 
 
 
 

170. Fern phloem lacks:

 
 
 
 

171. Oswald Tippo’s classification is:

 
 
 
 

172. Which lichen is called Reindeer moss?

 
 
 
 

173. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

176. Most appropriate word for protozoans is:

 
 
 
 

177. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

180. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

182. Male gametes in Dryopteris are:

 
 
 
 

183. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

186. Oswald Tippo’s classification was based on :

 
 
 
 

187. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

190. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

194. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

196. Special feature of pollen grains of Pinus is :

 
 
 
 

197. Spermatophyta are characterized by producing:

 
 
 
 

198. Cycas plant in appearance resembles :

 
 
 
 

199. Streptomycin is obtained from:

 
 
 
 

200. 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:

 
 
 
 

201. Funaria is :

 
 
 
 

202. Virus and bacteriophage are made-up of:

 
 
 
 

203. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

205. In Pteris, the archegonia are present:

 
 
 
 

206. Cyanophage is a virus that attacks:

 
 
 
 

207. Smallpox is caused by:

 
 
 
 

208. Transfusion tissue is present in the leaflet of:

 
 
 
 

209. Green plants are classified as :

 
 
 
 

210. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

211. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

213. 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:

 
 
 
 

214. Antibiotics cure the disease by:

 
 
 
 

215. Pinus is:

 
 
 
 

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

 
 
 
 

217. Which of the following are absent in Mycoplasma?

 
 
 
 

218. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

219. The first to isolate a plant virus was:

 
 
 
 

220. Diphtheria is caused by:

 
 
 
 

221. Each chloroplast in Spirogyra bears :

 
 
 
 

222. Funaria are commonly found :

 
 
 
 

223. Red rot of sugarcane is caused by :

 
 
 
 

224. Mycoplasma are:

 
 
 
 

225. How a fern differs from a moss?

 
 
 
 

226. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

229. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

231. Most common type of conjugation in Spirogyra is :

 
 
 
 

232. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

234. The two conjugating gametangia of Rhizopus are:

 
 
 
 

235. The phloem of vascular system of Cycas is :

 
 
 
 

236. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

238. Cryptogams include :

 
 
 
 

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

 
 
 
 

240. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

242. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

245. Antibiotic has been extracted from :

 
 
 
 

246. The sporophyte of Riccia is :

 
 
 
 

247. In Cycas:

 
 
 
 

248. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

250. Red rot of sugarcane is caused by :

 
 
 
 

251. Green plants are classified as:

 
 
 
 

252. Winged seeds are found in :

 
 
 
 

253. Meristele of fern is:

 
 
 
 

254. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

256. Maximum diversity of life forms occurs in :

 
 
 
 

257. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

260. The gametophyte produced by apospory is :

 
 
 
 

261. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

263. Chemosynthetic bacteria are:

 
 
 
 

264. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

268. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

271. Bivalved siliceous shell or frustule occur in:

 
 
 
 

272. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

274. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

276. Bacteria are placed under:

 
 
 
 

277. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

279. Endemic plants are characterised by their:

 
 
 
 

280. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. In moss, sporogenous tissue arises from:

 
 
 
 

284. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

286. Lichen show :

 
 
 
 

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

 
 
 
 

288. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

291. Quarantine regulations are concerned with:

 
 
 
 

292. Woody climbers are known as :

 
 
 
 

293. In Pteris, the roots are:

 
 
 
 

294. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299.

 

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

 
 
 
 

301. Botulism is a:

 
 
 
 

302. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

304. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

306. What is streptomycin?

 
 
 
 

307. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

308. Ethylene oxide is widely used to:

 
 
 
 

309. Rhizoids of Riccia are :

 
 
 
 

310. John Hutchinson divided dicots into two divisions:

 
 
 
 

311. Centric discoid form of diatom is:

 
 
 
 

312. Penicillin is obtained from:

 
 
 
 

313. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

315. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

317. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

319. The sporophyte of Riccia is represented by :

 
 
 
 

320. Who discovered heterothallism in fungi?

 
 
 
 

321. Enteric bacteria are those bacteria that live:

 
 
 
 

322. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

325. Fairy ring is the name given to:

 
 
 
 

326. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

331. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

334. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

338. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

340. All protozoans possess:

 
 
 
 

341. Gram stain is used to:

 
 
 
 

342. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

344. Who named prion?

 
 
 
 

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

 
 
 
 

346. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

350. The smallest unit of classification is:

 
 
 
 

351. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

353. Who among the following discovered virus?

 
 
 
 

354. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

355. The sporangium of fern contains nearly:

 
 
 
 

356. Mycoplasmas are not viruses in nature because:

 
 
 
 

357. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

361. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. Leaf spot of groundnut is caused by :

 
 
 
 

365. The mode of nutrition of bacteria is usually:

 
 
 
 

366. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

369. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

371. Clostridium can:

 
 
 
 

372. Lichens reproduce by :

 
 
 
 

373. The chief characteristic of bryophyta is that :

 
 
 
 

374. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

376. Usually, bacteria reproduce by:

 
 
 
 

377. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

379. Cycas is:

 
 
 
 

380. Heterosporous pteridophytes always form:

 
 
 
 

381. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

386. 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:

 
 
 
 

387. Absorptive nutrition is:

 
 
 
 

388. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

390. Sexual reproduction of lichen is due to :

 
 
 
 

391. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

393. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

397. Ovary is absent in:

 
 
 
 

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

 
 
 
 

399. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

401. Asexual reproductive body of Volvox is called:

 
 
 
 

402. Which is an edible fungus?

 
 
 
 

403. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

405. The genetic material of poxvirus is:

 
 
 
 

406. The prothallus of fern represents the plant:

 
 
 
 

407. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

410. Bryophyta have a special character from other plants:

 
 
 
 

411. Methanogens belong to:

 
 
 
 

412. What is absent in Deuteromycetes?

 
 
 
 

413. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

416. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

420. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

422. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

424. Longest known virus is:

 
 
 
 

425. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. NBG of Lucknow is now named as:

 
 
 
 

432. Lichens form the first community in

 
 
 
 

433. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

441. The sori in Dryopteris are found on:

 
 
 
 

442. One of the distinctive feature of Spirogyra is :

 
 
 
 

443. Fertility of the soil is increased by:

 
 
 
 

444. The similarity between cyanobacteria and bacteria:

 
 
 
 

445. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

447. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

449. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

451. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

453. Viruses are considered to be:

 
 
 
 

454. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

456. The chloroplast of Chlamydomonas are:

 
 
 
 

457. Fern plants are:

 
 
 
 

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

 
 
 
 

459. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

461. What is the role of nitrifying bacteria?

 
 
 
 

462. The orders generally have the uniform endings:

 
 
 
 

463. Water-net is the name of:

 
 
 
 

464. Bacteria were first discovered by:

 
 
 
 

465. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

469. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

473. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

475. Embryophyta includes :

 
 
 
 

476. Siphonogamy is found in:

 
 
 
 

477. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

479. Most of the algae are :

 
 
 
 

480. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

482. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

484. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

491. In Funaria :

 
 
 
 

492. Funaria is a Bryophyta because :

 
 
 
 

493. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

497. Male gametophyte of Selaginella is found:

 
 
 
 

498. Detailed study of bacteriophage was made by:

 
 
 
 

499. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

502. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

504. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

505. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

507. Lichens reproduce by :

 
 
 
 

508. Anoxygenic photosynthesis occurs in:

 
 
 
 

509. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

511. Which of the following are included in Tracheophyta?

 
 
 
 

512. Agar-agar is obtained from:

 
 
 
 

513. Which is not true for Escherichia coli?

 
 
 
 

514. The fungi used as food are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. The upper region of moss capsule is :

 
 
 
 

519. Streptomyces falls under:

 
 
 
 

520. Facultative parasite is:

 
 
 
 

521. Vascular cryptogam is the term used for :

 
 
 
 

522. Pythium debaryanum is the causative agent of:

 
 
 
 

523. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

525. 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?

 
 
 
 

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

 
 
 
 

527. Most primitive group of vascular plants are:

 
 
 
 

528. Roots are absent in :

 
 
 
 

529. Which of the following applies to Selaginella?

 
 
 
 

530. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

534. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

539. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

541. Who discovered streptomycin?

 
 
 
 

542. Heterocysts are found in :

 
 
 
 

543. In moss, stomata are found:

 
 
 
 

544. In Gymnocarpeae the fruiting body is :

 
 
 
 

545. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Azolla growing in paddy fields helps in:

 
 
 
 

550. Which class of Protozoa includes all parasitic forms?

 
 
 
 

551. Select the wrong statement:

 
 
 
 

552. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

553. The most important property of yeast is:

 
 
 
 

554. Fern prothallus produces:

 
 
 
 

555. Fern prothallus is:

 
 
 
 

556. Which is the nuclear material in bacteria?

 
 
 
 

557. Halophiles are the bacteria that require for growth:

 
 
 
 

558. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

560. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

562. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

564. Vegetative reproduction in Cycas is by means of :

 
 
 
 

565. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

566.

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

 
 
 
 

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

 
 
 
 

569. Which condition is found in Cycas?

 
 
 
 

570. Liverworts are included in :

 
 
 
 

571. Psilotum is:

 
 
 
 

572. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

574. Ulothrix produces :

 
 
 
 

575. Banana bunchy top is caused by :

 
 
 
 

576. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

578. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

579. Penicillin was discovered by:

 
 
 
 

580. Some biologists have used the term Mycetozoa for:

 
 
 
 

581. The sporangia of Selaginella are attached:

 
 
 
 

582. Synzoospore is produced in:

 
 
 
 

583. Cycas revoluta is widely grown as :

 
 
 
 

584. Early blight of potato is caused by:

 
 
 
 

585. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

587. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. Bacteriophage consists of:

 
 
 
 

591. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. The archegonia in Selaginella develop on:

 
 
 
 

595. The development of Selaginella embryo is:

 
 
 
 

596. The mycelium of Rhizopus is:

 
 
 
 

597. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

600. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

602.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

606. Coenogamete is found in:

 
 
 
 

607. Selaginella differs from Moss in having:

 
 
 
 

608. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

610. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

615. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

617. Protists which are diploid reproduce sexually by:

 
 
 
 

618. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

620. What are plasmids?

 
 
 
 

621. Which organisms are the oldest life forms?

 
 
 
 

622.

623. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

625. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

628. Pollination in Pinus is :

 
 
 
 

629. Embryo formation is not known in :

 
 
 
 

630. Sometimes the bacterial cell is enclosed in:

 
 
 
 

631. The spur of Pinus roxburghii has :

 
 
 
 

632. The term stele was given by:

 
 
 
 

633. What is a vector?

 
 
 
 

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

 
 
 
 

635. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

638. Rice, pea, potato are :

 
 
 
 

639. The fungi are mostly:

 
 
 
 

640. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

642. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

646. Linnaeus is credited with introducing:

 
 
 
 

647. The middle sterile part of capsule is called:

 
 
 
 

648. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

650. The coralloid roots are :

 
 
 
 

651. Which fixes atmospheric nitrogen?

 
 
 
 

652. Protozoans are considered animals because these are:

 
 
 
 

653. Fruits are not found in :

 
 
 
 

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

 
 
 
 

655. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

657. The Rhizopus gametes are formed in:

 
 
 
 

658. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

660. In a bacteriophage, DNA is present in:

 
 
 
 

661. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

663. Pinus microsporophyll bears:

 
 
 
 

664. Acetobacter is useful in:

 
 
 
 

665. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

667. Metulae are found in:

 
 
 
 

668. Rhizopus belongs to:

 
 
 
 

669. The leaf of Cycas shows:

 
 
 
 

670. Cycas is :

 
 
 
 

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

 
 
 
 

672. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. 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:

 
 
 
 

678. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

681. The chief characteristic of class Ascomycetes is:

 
 
 
 

682. 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?

 
 
 
 

683. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

684. Where does meiosis occur in yeast?

 
 
 
 

685. Virion refers to:

 
 
 
 

686. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

688. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

690. Which of the following is a monocot?

 
 
 
 

691. First animal pathogenic virus was discovered by:

 
 
 
 

692. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. In moss, calyptra is formed from:

 
 
 
 

696. In Selaginella, the microsporangia are:

 
 
 
 

697. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

699. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. Which is the correct statement about Selaginella?

 
 
 
 

706. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

708. Viruses have:

 
 
 
 

709. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

711. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

713. In a diplontic life cycle:

 
 
 
 

714. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

717. LSD is:

 
 
 
 

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

 
 
 
 

719. Viroids have:

 
 
 
 

720. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

722. Mucilaginous canals in Cycas are found in :

 
 
 
 

723. Club moss is the common name of :

 
 
 
 

724. Which causes red tide?

 
 
 
 

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

 
 
 
 

726. The antherozoids of Funaria are :

 
 
 
 

727. Which of the following is true for viruses?

 
 
 
 

728. 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:

 
 
 
 

729. The male gametes of Pinus are :

 
 
 
 

730. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

732. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

733. Black rust of wheat is caused by:

 
 
 
 

734. Pollination drop is:

 
 
 
 

735. Heterospory and ligulate leaves are a feature of:

 
 
 
 

736. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

741. How is moss different from fern?

 
 
 
 

742. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

744. The fungi that grow on wood are called:

 
 
 
 

745. Pasteurized milk is:

 
 
 
 

746. 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?

 
 
 
 

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

 
 
 
 

748. Cellular slime mold is:

 
 
 
 

749. Which is not found in bacteria?

 
 
 
 

750. Climbers are found in genus:

 
 
 
 

751. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. The roots of Cycas are :

 
 
 
 

755. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

758. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

760. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

763. Lichens show :

 
 
 
 

764. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

766. In dinoflagellates, the two flagella are:

 
 
 
 

767. Spermatophyta are characterized by producing:

 
 
 
 

768. Bentham and Hooker placed gymnosperms:

 
 
 
 

769. The Rhizopus is:

 
 
 
 

770. Funaria is :

 
 
 
 

771. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

778. Iodine is obtained from :

 
 
 
 

779. The megaspore of Selaginella on germination produces:

 
 
 
 

780. Seeds are characteristically found in :

 
 
 
 

781. The tallest moss in the world is :

 
 
 
 

782. Ovules are not found enclosed in ovary of:

 
 
 
 

783. In angiosperms double fertilization represents:

 
 
 
 

784. Sporophyte of Funaria is :

 
 
 
 

785. The DNA of E coli is:

 
 
 
 

786. Nitrogen-fixing bacteria may be located:

 
 
 
 

787. Indusium in Dryopteris is:

 
 
 
 

788. Protistan algae obtain their food as:

 
 
 
 

789. The tree fern is:

 
 
 
 

790. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. Which of the following does not contain chlorophyll?

 
 
 
 

798. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

800. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. Placenta in fern is:

 
 
 
 

805. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

810. All archaebacteria lack:

 
 
 
 

811. Vascular cryptogams is the term used for:

 
 
 
 

812. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

814. The most primitive vascular plants is:

 
 
 
 

815. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

818. Redness of red sea is due to :

 
 
 
 

819. Infective part of virus was discovered by:

 
 
 
 

820. Helotism word is used for the symbiosis between :

 
 
 
 

821. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

824. Discovery of penicillin was based on:

 
 
 
 

825. In binomial system most of the words are:

 
 
 
 

826. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

828. Polystelic condition is found in:

 
 
 
 

829. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

831. E coli is a:

 
 
 
 

832. Pinus gerardiana is :

 
 
 
 

833. Black rust of wheat is caused by:

 
 
 
 

834. Multicellular and jacketed sex organs are found in :

 
 
 
 

835. The order generally ends with:

 
 
 
 

836. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

838. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

841. Mycoplasma was discovered by:

 
 
 
 

842. Cocci types of bacteria are:

 
 
 
 

843. Vascular tissue is found in :

 
 
 
 

844. Select the wrong statement:

 
 
 
 

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

 
 
 
 

846. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

851. The sporangiophores in Rhizopus are:

 
 
 
 

852. Which of the following have algal zone?

 
 
 
 

853. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

855. Ectocarpus produces:

 
 
 
 

856. The truncated cone of HIV consists of:

 
 
 
 

857. Which of the following statement is correct?

 
 
 
 

858. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

862. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

864. Mycoplasma contains: