Quiz_Random

1. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

3. Placenta in fern is:

 
 
 
 

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

 
 
 
 

5. Which is absent from the xylem of Cycas?

 
 
 
 

6. In Gymnosperms endosperm is a:

 
 
 
 

7. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

8. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Saccharomyces ludwigii ascus produces:

 
 
 
 

12. What is absent in Deuteromycetes?

 
 
 
 

13. Heterocysts are found in :

 
 
 
 

14. Rhizopus belongs to:

 
 
 
 

15. Which of the following is a monocot?

 
 
 
 

16. Which have the largest antherozoid?

 
 
 
 

17. Which of the following are included in Tracheophyta?

 
 
 
 

18. What is mycorrhiza?

 
 
 
 

19. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

21. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

23. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Red rot of sugarcane is caused by :

 
 
 
 

27. In Cycas:

 
 
 
 

28. Water-net is the name of:

 
 
 
 

29. The sporangium of fern contains nearly:

 
 
 
 

30. Most appropriate word for protozoans is:

 
 
 
 

31. Most of the algae are :

 
 
 
 

32. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

33. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. Acellular slime mold is/are:

 
 
 
 

44. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

46. Generic name of mango is:

 
 
 
 

47. Fern prothallus is:

 
 
 
 

48. Banana bunchy top is caused by :

 
 
 
 

49. Select the wrong statement:

 
 
 
 

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

 
 
 
 

51. Heterotrichous habit means :

 
 
 
 

52.

 

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

 
 
 
 

54. Among the algae kelps are :

 
 
 
 

55. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

57. The largest alga is:

 
 
 
 

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

 
 
 
 

59. Which is a gametophytic tissue?

 
 
 
 

60. Penicillin is obtained from:

 
 
 
 

61. In Pteris, the archegonia are present:

 
 
 
 

62. Mycoplasma was discovered by:

 
 
 
 

63. Virus and bacteriophage are made-up of:

 
 
 
 

64. Yeast is a source of:

 
 
 
 

65. The sporophyte of Riccia is :

 
 
 
 

66. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Acetobacter is useful in:

 
 
 
 

70. The fungi used as food are:

 
 
 
 

71. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Lichens are the indicator of pollution :

 
 
 
 

75. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

79. Bryophyta have a special character from other plants:

 
 
 
 

80. Gametophyte is the main plant body in :

 
 
 
 

81. Which is a fungicide?

 
 
 
 

82. Green plants are classified as:

 
 
 
 

83. Which of the following statement is correct?

 
 
 
 

84. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

86. Detailed study of bacteriophage was made by:

 
 
 
 

87. In moss, conducting tissue is made up of

 
 
 
 

88. 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:

 
 
 
 

89. Pasteurization of milk involves heating for:

 
 
 
 

90. Transfusion tissue is present in the leaflet of:

 
 
 
 

91. Majority of lichens are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

98. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

103. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. Longest known virus is:

 
 
 
 

108. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

117. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

119. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

123. Male gametes in Dryopteris are:

 
 
 
 

124. Sexual reproduction in Rhizopus is by:

 
 
 
 

125. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

127. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

129. Protists which are diploid reproduce sexually by:

 
 
 
 

130. Chemosynthetic bacteria are:

 
 
 
 

131. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

133. Which statement is wrong in regard to bacteria?

 
 
 
 

134. Pollination in Pinus is :

 
 
 
 

135. Spirogyra represents the :

 
 
 
 

136. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

139. The mycelium of Rhizopus is:

 
 
 
 

140. Which class of Protozoa includes all parasitic forms?

 
 
 
 

141. Which of the following is a heterosporous pteridophyte?

 
 
 
 

142. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

145. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. In angiosperms double fertilization represents:

 
 
 
 

150. Saccharomyces is well known for:

 
 
 
 

151. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

153. Most resistant spore in bacteria is:

 
 
 
 

154. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

156. Which of the following are included in Tracheophyta?

 
 
 
 

157. Economic importance of bacteria lies in their being:

 
 
 
 

158. The spur of Pinus roxburghii has :

 
 
 
 

159. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. To which class Riccia belongs :

 
 
 
 

166. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

169. Leaf spot of groundnut is caused by :

 
 
 
 

170. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

172. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

174. Fruits are not found in:

 
 
 
 

175. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

178. Heterosporous pteridophytes always form:

 
 
 
 

179. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

181. 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:

 
 
 
 

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

 
 
 
 

183. Who named prion?

 
 
 
 

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

 
 
 
 

185. Rhizopus and yeast are usually:

 
 
 
 

186. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

190. Facultative saprophyte is:

 
 
 
 

191.

192. Reproduction in Rhizopus is:

 
 
 
 

193. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

196. In Funaria :

 
 
 
 

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

 
 
 
 

198. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

200. Sporophyte of fern is:

 
 
 
 

201. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

203. Ovary is absent in:

 
 
 
 

204. Reproduction in Cycas takes place by :

 
 
 
 

205. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

207. Clostridium can:

 
 
 
 

208. The chief characteristic of class Ascomycetes is:

 
 
 
 

209. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

210. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

212. The coralloid roots are :

 
 
 
 

213. Viruses are commonly transmitted in plants through:

 
 
 
 

214. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

216. 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:

 
 
 
 

217. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

219. The role of meiosis is for:

 
 
 
 

220. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

222.

223. One of the distinctive feature of Spirogyra is :

 
 
 
 

224. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

226. Which fixes atmospheric nitrogen?

 
 
 
 

227. Cycas plant in appearance resembles :

 
 
 
 

228. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

230. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

232. Pinus is:

 
 
 
 

233. Cycas is similar to a mustard plant :

 
 
 
 

234. Smallpox is caused by:

 
 
 
 

235. Ulothrix produces :

 
 
 
 

236. Who discovered streptomycin?

 
 
 
 

237. Psilotum is:

 
 
 
 

238. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

239. Asexual reproductive body of Volvox is called:

 
 
 
 

240. Triple antigen injection or vaccine are for:

 
 
 
 

241. Funaria is :

 
 
 
 

242. Most of the lichens are composed of :

 
 
 
 

243. Protistan algae obtain their food as:

 
 
 
 

244. Plasmids are:

 
 
 
 

245. Maximum diversity of life forms occurs in :

 
 
 
 

246. In moss, reduction division occurs in :

 
 
 
 

247. How a fern differs from a moss?

 
 
 
 

248. Which of the following have algal zone?

 
 
 
 

249. John Hutchinson divided dicots into two divisions:

 
 
 
 

250. Helotism word is used for the symbiosis between :

 
 
 
 

251. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

252. Yeast belongs to class:

 
 
 
 

253. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

257. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

259. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

261. Circular DNA is seen in:

 
 
 
 

262. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

265. In tracheophyta:

 
 
 
 

266. Cap cells are found in the filament of:

 
 
 
 

267. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

270. The seedless plants which possess vascular tissues are:

 
 
 
 

271. Methanogens belong to:

 
 
 
 

272. The spermatozoids of Cycas are :

 
 
 
 

273. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

276. The chloroplast of Chlamydomonas are:

 
 
 
 

277. Ovules are not found enclosed in ovary in :

 
 
 
 

278. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

279. The lambda phase is a:

 
 
 
 

280. Liverworts are included in :

 
 
 
 

281. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

283. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

285. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

287. What is special feature of fern archegonia?

 
 
 
 

288. Which is an exception to cell theory?

 
 
 
 

289. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

291.

292. Roots are absent in :

 
 
 
 

293. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

296. Penicillin was discovered by:

 
 
 
 

297. Mycoplasmas are not viruses in nature because:

 
 
 
 

298. Most primitive embryophytes are placed in :

 
 
 
 

299. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

301. What is the role of nitrifying bacteria?

 
 
 
 

302. Which of the following is true for viruses?

 
 
 
 

303. In moss, sporophyte is formed on:

 
 
 
 

304. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

306. Ovules are not found enclosed in ovary in :

 
 
 
 

307. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

308. Citrus canker is caused by:

 
 
 
 

309. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

311. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

314. Each chloroplast in Spirogyra bears :

 
 
 
 

315. What are plasmids?

 
 
 
 

316. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. Cellular slime mold is:

 
 
 
 

320. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

322. In a bacteriophage, DNA is present in:

 
 
 
 

323. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

325. Synzoospore is produced in:

 
 
 
 

326. The sporangiophores in Rhizopus are:

 
 
 
 

327. Water-borne bacterial diseases are:

 
 
 
 

328. 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:

 
 
 
 

329. Pythium debaryanum is the causative agent of:

 
 
 
 

330. The nucleus of bacteria is:

 
 
 
 

331. Bacteria differ from viruses in being sensitive to:

 
 
 
 

332. Germ theory of disease was proposed by:

 
 
 
 

333. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. Which is a tautonym?

 
 
 
 

337. In Cycas the fertilization is:

 
 
 
 

338. Which of the following statements is not correct?

 
 
 
 

339. Bacteria growing on synthetic medium are called:

 
 
 
 

340. The similarity between cyanobacteria and bacteria:

 
 
 
 

341. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

344. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

346. Special feature of pollen grains of Pinus is :

 
 
 
 

347. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

349. Fruits are not found in :

 
 
 
 

350. Ginkgo biloba is a:

 
 
 
 

351. The alga, Spirogyra are found in :

 
 
 
 

352. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. In moss, peristomial teeth are:

 
 
 
 

356. The two conjugating gametangia of Rhizopus are:

 
 
 
 

357. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

358. Ectocarpus produces:

 
 
 
 

359. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

362. Chief constituents of bordeaux mixture are :

 
 
 
 

363. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

365. Which of the following shows heterotrichous habit?

 
 
 
 

366. The tree fern is:

 
 
 
 

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

 
 
 
 

368. Sometimes the bacterial cell is enclosed in:

 
 
 
 

369. LSD is:

 
 
 
 

370. Which lichen is called Reindeer moss?

 
 
 
 

371. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

373. Male gametophyte of Selaginella is found:

 
 
 
 

374. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

375. Saccharomyces is used in:

 
 
 
 

376. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

379. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

381. Which of the following is sago palm?

 
 
 
 

382. The megasporangium of Selaginella is:

 
 
 
 

383. The fern plant is:

 
 
 
 

384. The central part of Funaria axis is :

 
 
 
 

385. Pneumonia is caused by:

 
 
 
 

386. 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?

 
 
 
 

387. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

389. Meristele of fern is:

 
 
 
 

390. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

393. Winged pollen grains are found in :

 
 
 
 

394. Photosynthetic bacteria have:

 
 
 
 

395. Botulinum toxin effects:

 
 
 
 

396. To which country Antony van Leeuwenhoek belong?

 
 
 
 

397. Where does meiosis occur in yeast?

 
 
 
 

398. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

402. Spirogyra differs from moss protonema in having :

 
 
 
 

403. The male gametes of Pinus are :

 
 
 
 

404. The sori in Dryopteris are found on:

 
 
 
 

405. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

410. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Azolla growing in paddy fields helps in:

 
 
 
 

414. Which causes red tide?

 
 
 
 

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

 
 
 
 

416. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

418. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

419. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

421. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

425. Sleeping sickness disease in man is caused by:

 
 
 
 

426. Mucilaginous canals in Cycas are found in :

 
 
 
 

427. Mixed cropping helps :

 
 
 
 

428. Which one of the following statement is wrong?

 
 
 
 

429. Rhizoids of Riccia are :

 
 
 
 

430. The fungi are mostly:

 
 
 
 

431. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

434. Disease resistant plant varieties can be produced by :

 
 
 
 

435. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

437. Mycoplasma are:

 
 
 
 

438. Most primitive embryophytes are placed in:

 
 
 
 

439. Pinus microsporophyll bears:

 
 
 
 

440. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

442. The genetic material of poxvirus is:

 
 
 
 

443. Gymnosperms could also be called as:

 
 
 
 

444. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

447. Number of capsomeres forming capsid of TMV is:

 
 
 
 

448. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

453. The root nodules of leguminous plants contain:

 
 
 
 

454. Ethylene oxide is widely used to:

 
 
 
 

455. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

457. Sporophyte of Funaria is :

 
 
 
 

458. Parmelia belongs to :

 
 
 
 

459. Nitrifying bacteria play an important role by converting:

 
 
 
 

460. Smut of maize is caused by :

 
 
 
 

461. Cycas is :

 
 
 
 

462. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

464. In Cycas which structure is equivalent to stamen?

 
 
 
 

465. Meiosis in Ulothrix takes place:

 
 
 
 

466. Multicellular and jacketed sex organs are found in :

 
 
 
 

467. Seeds are characteristically found in:

 
 
 
 

468. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

471. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

473. In moss, calyptra is formed from:

 
 
 
 

474. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

476. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

482. The most important property of yeast is:

 
 
 
 

483. The Rhizopus is:

 
 
 
 

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

 
 
 
 

485. Ovary is absent in :

 
 
 
 

486. Black rust of wheat is caused by:

 
 
 
 

487. Bacteria were first discovered by:

 
 
 
 

488. Bryophyta have been placed in cryptogams because:

 
 
 
 

489. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

491. Redness of red sea is due to :

 
 
 
 

492. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

494. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

497. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

499. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

502. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

504. An alga which is rich in proteins:

 
 
 
 

505. Cleavage polyembryony is found in :

 
 
 
 

506. 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?

 
 
 
 

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

 
 
 
 

508. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

513. The megaspore of Selaginella on germination produces:

 
 
 
 

514. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

516. Fertility of the soil is increased by:

 
 
 
 

517. Fern plants are:

 
 
 
 

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

 
 
 
 

519. Bacteriophages have been used as:

 
 
 
 

520. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

522. Which of the following does not contain chlorophyll?

 
 
 
 

523. Interferon is a:

 
 
 
 

524. The sexual reproductive organs in Rhizopus are:

 
 
 
 

525. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

527. A gill of Agaricus:

 
 
 
 

528. Enzymes are absent in:

 
 
 
 

529. Bacteria are placed under:

 
 
 
 

530. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

532. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. What are Cyanobacteria?

 
 
 
 

537. Some biologists have used the term Mycetozoa for:

 
 
 
 

538. Pasteur is famous for his:

 
 
 
 

539. Virion refers to:

 
 
 
 

540. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

542. Infective part of virus was discovered by:

 
 
 
 

543. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

545. NBG of Lucknow is now named as:

 
 
 
 

546. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

550. Who discovered heterothallism in fungi?

 
 
 
 

551. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

553. Embryophyta includes:

 
 
 
 

554. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

558. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

564. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. The disease symptom necrosis refers to :

 
 
 
 

569. Genetic material of TMV is:

 
 
 
 

570. Spores of which plants have chloroplast:

 
 
 
 

571. Lichens are pioneers of vegetation in a :

 
 
 
 

572. Citrus canker is caused by :

 
 
 
 

573. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

575. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

577. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

579. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

582. The most primitive vascular plants is:

 
 
 
 

583. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

585. Pseudomycelium is found in:

 
 
 
 

586. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

589. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

591. The development of Selaginella embryo is:

 
 
 
 

592. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

593. . Tapetum develops in:

 
 
 
 

594. Which part of Riccia bears nurse cells?

 
 
 
 

595. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

598. Club moss is the common name of :

 
 
 
 

599. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

601. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

604. The order generally ends with:

 
 
 
 

605. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

608. 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?

 
 
 
 

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

 
 
 
 

610. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

612. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. Iodine is obtained from:

 
 
 
 

617. The phloem of vascular system of Cycas is :

 
 
 
 

618. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

624. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

626. Gram stain is used to:

 
 
 
 

627. In moss, sporogenous tissue arises from:

 
 
 
 

628. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

630. The largest known bacterium is:

 
 
 
 

631. Select the correct statement: (NEET 2016)

 
 
 
 

632. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

637. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

639. The source of litmus is :

 
 
 
 

640. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

642. Late blight of potato is caused by:

 
 
 
 

643. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

645. Pteridophytes are also known as :

 
 
 
 

646. Pteridophyta are also called:

 
 
 
 

647. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

651. Most primitive kind of flower is represented by:

 
 
 
 

652. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

654. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

657. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

659. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

661. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

668. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

671. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

673. Indusium in Dryopteris is:

 
 
 
 

674. Little leaf disease of Brinjal is caused by:

 
 
 
 

675. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

677. The smallest bacterium is:

 
 
 
 

678. Lichens show :

 
 
 
 

679. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

682. Bentham and Hooker placed gymnosperms:

 
 
 
 

683. The chief characteristic of bryophyta is that :

 
 
 
 

684. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

686. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

689. Early blight of potato is caused by:

 
 
 
 

690. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

692. Which of the following are absent in Mycoplasma?

 
 
 
 

693. Which is not true for Escherichia coli?

 
 
 
 

694. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

695. The smallest unit of classification is:

 
 
 
 

696. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

698. Funaria can be differentiated from Cycas :

 
 
 
 

699. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

701. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

703. Siphonogamy is found in:

 
 
 
 

704. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

708. The chromosomal number in:

 
 
 
 

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

 
 
 
 

710. Standard size of a herbarium sheet is:

 
 
 
 

711. Facultative parasite is:

 
 
 
 

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

 
 
 
 

713. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

714. In Funaria, calyptra is derived from :

 
 
 
 

715. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

717. The gametophyte produced by apospory is :

 
 
 
 

718. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. 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?

 
 
 
 

730. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

733. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

735. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

740. What is a vector?

 
 
 
 

741. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

743. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

747. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

751. Why is Cycas called a living fossil?

 
 
 
 

752. Lichens are ecologically important because :

 
 
 
 

753. Chemosynthetic bacteria are:

 
 
 
 

754. Germination of the seed of Pinus is :

 
 
 
 

755. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

760. Which organisms are the oldest life forms?

 
 
 
 

761. The leafy fern plant represents the:

 
 
 
 

762. Embryophyta includes :

 
 
 
 

763. Botulism is a:

 
 
 
 

764. Polystelic condition is found in:

 
 
 
 

765. The antherozoids of Funaria are :

 
 
 
 

766. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

776. Total parasites belong to:

 
 
 
 

777. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

779. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

788. Photosynthetic protists belong to:

 
 
 
 

789. All protozoans possess:

 
 
 
 

790. In Gymnocarpeae the fruiting body is :

 
 
 
 

791. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

793. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

795. The DNA of E coli is:

 
 
 
 

796. The group algae possesses representatives belonging to kingdom:

 
 
 
 

797. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

799. Lichens form the first community in

 
 
 
 

800. Sexual reproduction of lichen is due to :

 
 
 
 

801. Which bacteria convert nitrate into nitrogen?

 
 
 
 

802. Which group of algae have an incipient nucleus?

 
 
 
 

803. Selaginella differs from Moss in having:

 
 
 
 

804. The sporangia of Selaginella are attached:

 
 
 
 

805. In dinoflagellates, the two flagella are:

 
 
 
 

806. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

810. Fairy ring is the name given to:

 
 
 
 

811. Which of the following is a parasitic algae?

 
 
 
 

812. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

814. The gametophyte of moss has distinct phases :

 
 
 
 

815. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

819. Linnaeus is credited with introducing:

 
 
 
 

820. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

824. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

826. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

830. Nannandria are:

 
 
 
 

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

 
 
 
 

832. Lichens reproduce by :

 
 
 
 

833. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

834. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

836. All algae have:

 
 
 
 

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

 
 
 
 

838. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

840. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

842. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

846. Which is a redwood tree?

 
 
 
 

847. Cocci types of bacteria are:

 
 
 
 

848. Vascular tissue is found in :

 
 
 
 

849. Mycoplasma contains:

 
 
 
 

850. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

852. How is moss different from fern?

 
 
 
 

853. The upper region of moss capsule is :

 
 
 
 

854. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

856. 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:

 
 
 
 

857. The stele of Dryopteris is a:

 
 
 
 

858. Spermatophyta are characterized by producing:

 
 
 
 

859. Isomorphic type alternation of generation is found in:

 
 
 
 

860. Endemic plants are characterised by their:

 
 
 
 

861. 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:

 
 
 
 

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

 
 
 
 

863. Ovules are not found enclosed in ovary of:

 
 
 
 

864. The archegonia of Selaginella are differentiated by: