Quiz_Random

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

 
 
 
 

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

 
 
 
 

3. In Herpes virus DNA is:

 
 
 
 

4. The leafy fern plant represents the:

 
 
 
 

5. Nannandria are:

 
 
 
 

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

 
 
 
 

7. Photoautotrophic bacteria have:

 
 
 
 

8. The fungi used as food are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

15. Ovules are not found enclosed in ovary in :

 
 
 
 

16. In moss, sporophyte is formed on:

 
 
 
 

17. 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:

 
 
 
 

18. Funaria is a Bryophyta because :

 
 
 
 

19. Aflatoxin is produced by:

 
 
 
 

20. The leaves of Funaria are :

 
 
 
 

21. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

23. Longest known virus is:

 
 
 
 

24. Lichens reproduce by :

 
 
 
 

25. Who discovered streptomycin?

 
 
 
 

26. The similarity between cyanobacteria and bacteria:

 
 
 
 

27. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. An Hfr bacterium is one that contains:

 
 
 
 

31. Indusium in Dryopteris is:

 
 
 
 

32. Rhizopus and yeast are usually:

 
 
 
 

33. Mucilaginous canals in Cycas are found in :

 
 
 
 

34. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

36. Most appropriate word for protozoans is:

 
 
 
 

37. Number of capsomeres forming capsid of TMV is:

 
 
 
 

38. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

40. Fern phloem lacks:

 
 
 
 

41. E coli is a:

 
 
 
 

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

 
 
 
 

43. Enzymes are absent in:

 
 
 
 

44. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

47. Methanogens belong to:

 
 
 
 

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

 
 
 
 

49. Yeast is a source of:

 
 
 
 

50. Kuru, a human disease is caused by:

 
 
 
 

51. Funaria are commonly found :

 
 
 
 

52. Multicellular and jacketed sex organs are found in :

 
 
 
 

53. Fairy ring is the name given to:

 
 
 
 

54. Psilotum is:

 
 
 
 

55. Club moss and Peat moss belong to:

 
 
 
 

56. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

61. The smallest bacterium is:

 
 
 
 

62. Endemic plants are characterised by their:

 
 
 
 

63. Antibiotics cure the disease by:

 
 
 
 

64. The smallest unit of classification is:

 
 
 
 

65. Citrus canker is caused by :

 
 
 
 

66. The microsporophylls on the cone of Cycas are :

 
 
 
 

67. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

69. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

74. The orders generally have the uniform endings:

 
 
 
 

75. Red rot of sugarcane is caused by :

 
 
 
 

76. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

78. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

80. Sexual reproduction in Rhizopus is by:

 
 
 
 

81. Zoogametes are not found in:

 
 
 
 

82. Which one of the following statement is wrong?

 
 
 
 

83. In moss, conducting tissue is made up of

 
 
 
 

84. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

96. The order generally ends with:

 
 
 
 

97. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

100. The source of litmus is :

 
 
 
 

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

 
 
 
 

102. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. Pinus is:

 
 
 
 

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

 
 
 
 

109. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

117. Cycas is :

 
 
 
 

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

 
 
 
 

119. The sporophyte of Riccia is represented by :

 
 
 
 

120. The alga, Spirogyra are found in :

 
 
 
 

121. The spur of Pinus roxburghii has :

 
 
 
 

122. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

130. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

132. The development of sporangium in Selaginella is:

 
 
 
 

133. Redness of red sea is due to :

 
 
 
 

134. Which among the following is a shrub?

 
 
 
 

135. Most resistant spore in bacteria is:

 
 
 
 

136.

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

 
 
 
 

138. Interferon is a:

 
 
 
 

139. Ergot of rye is caused by:

 
 
 
 

140. Most primitive embryophytes are placed in:

 
 
 
 

141. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

144. Iodine is obtained from :

 
 
 
 

145. Cyathia is characterized by:

 
 
 
 

146. 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:

 
 
 
 

147. Gametophyte is the main plant body in :

 
 
 
 

148. Green plants are classified as:

 
 
 
 

149. Ectocarpus produces:

 
 
 
 

150. Lichens show :

 
 
 
 

151. Most of the algae are :

 
 
 
 

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

 
 
 
 

153. Selaginella differs from Moss in having:

 
 
 
 

154. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

156. How is moss different from fern?

 
 
 
 

157. How a fern differs from a moss?

 
 
 
 

158. The antibiotic is obtained from:

 
 
 
 

159. Sporophyte of fern is:

 
 
 
 

160. Black rust of wheat is caused by:

 
 
 
 

161. Which is not found in bacteria?

 
 
 
 

162. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. The photosynthetic protists are:

 
 
 
 

166. Sexual reproduction of lichen is due to :

 
 
 
 

167. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

171. Cycas plant in appearance resembles :

 
 
 
 

172. All archaebacteria lack:

 
 
 
 

173. Which of the following is a monocot?

 
 
 
 

174. Mixed cropping helps :

 
 
 
 

175. Nitrogen-fixing bacteria may be located:

 
 
 
 

176. Bivalved siliceous shell or frustule occur in:

 
 
 
 

177. Which is the correct statement about Selaginella?

 
 
 
 

178. 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:

 
 
 
 

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

 
 
 
 

180. Lichens are ecologically important because :

 
 
 
 

181. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. Total parasites belong to:

 
 
 
 

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

 
 
 
 

186. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

188. A gill of Agaricus:

 
 
 
 

189. Smallpox is caused by:

 
 
 
 

190. The rhizoids of Funaria are :

 
 
 
 

191. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

193. Bacteriophages have been used as:

 
 
 
 

194. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

197. The fungi are usually:

 
 
 
 

198. The zoospores of Ulothrix are :

 
 
 
 

199. Which statement is wrong in regard to bacteria?

 
 
 
 

200. Virion refers to:

 
 
 
 

201. Ovules are not found enclosed in ovary of:

 
 
 
 

202. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

205. Leaf spot of groundnut is caused by :

 
 
 
 

206. Broad spectrum antibiotic is, which:

 
 
 
 

207. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

208. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

210. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

212. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

214. Cellular slime mold is:

 
 
 
 

215.

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

 
 
 
 

217. The lambda phase is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

220. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

222. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

224. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

227. Most common type of conjugation in Spirogyra is :

 
 
 
 

228. Ethylene oxide is widely used to:

 
 
 
 

229. Ovary is absent in:

 
 
 
 

230. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

233. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

235. Rhizopus belongs to:

 
 
 
 

236. Pinus gerardiana is :

 
 
 
 

237. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

242. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

244. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

246. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

249. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

251. Lichens are indicators of :

 
 
 
 

252. Heterosporous pteridophytes always form:

 
 
 
 

253. Some biologists have used the term Mycetozoa for:

 
 
 
 

254. Select the wrong statement:

 
 
 
 

255. Vascular tissue is found in :

 
 
 
 

256. Which causes red tide?

 
 
 
 

257. Which is an exception to cell theory?

 
 
 
 

258. Heterospory is the production of:

 
 
 
 

259. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

262. The most primitive vascular plants is:

 
 
 
 

263. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

265. The middle sterile part of capsule is called:

 
 
 
 

266. Which have the largest antherozoid?

 
 
 
 

267. Who discovered heterothallism in fungi?

 
 
 
 

268. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

269. Proembryo in Pinus is :

 
 
 
 

270. The stele of Dryopteris is a:

 
 
 
 

271. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

273. Embryophyta includes :

 
 
 
 

274. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

276. The mycelium of Rhizopus is:

 
 
 
 

277. What is mycorrhiza?

 
 
 
 

278. Antibiotic has been extracted from :

 
 
 
 

279. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

281. Meristele of fern is:

 
 
 
 

282. In Funaria, calyptra is derived from :

 
 
 
 

283. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

287. Cycas is similar to a mustard plant :

 
 
 
 

288. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

291. In Cycas microsporangia are borne on:

 
 
 
 

292. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

294. Facultative saprophyte is:

 
 
 
 

295. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

298. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

299. Oswald Tippo’s classification is:

 
 
 
 

300. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

303. The roots of Cycas are :

 
 
 
 

304. Aflatoxin is produced as a product in :

 
 
 
 

305. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

307. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

309. Mycoplasma was discovered by:

 
 
 
 

310. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

316. Which is a fungicide?

 
 
 
 

317. Economic importance of bacteria lies in their being:

 
 
 
 

318. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

323. Each chloroplast in Spirogyra bears :

 
 
 
 

324. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

331. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

337. NBG of Lucknow is now named as:

 
 
 
 

338. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

340. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

342. Which is not true for Escherichia coli?

 
 
 
 

343. Fruits are not found in:

 
 
 
 

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

 
 
 
 

345. In moss, stomata are found:

 
 
 
 

346. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

348. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

350. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

353. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

355. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

359. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

362. In Cycas the fertilization is:

 
 
 
 

363. Mycoplasmas are not viruses in nature because:

 
 
 
 

364. First animal pathogenic virus was discovered by:

 
 
 
 

365. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

369. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

370. Pinus microsporophyll bears:

 
 
 
 

371. Parmelia belongs to :

 
 
 
 

372. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

374. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

376. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

378. Mycoplasma is different from bacteria due to:

 
 
 
 

379. Linnaeus is credited with introducing:

 
 
 
 

380. The term stele was given by:

 
 
 
 

381. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

384. 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:

 
 
 
 

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

 
 
 
 

386. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

390. What is special feature of fern archegonia?

 
 
 
 

391. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

394. Botulinum toxin effects:

 
 
 
 

395. What is a vector?

 
 
 
 

396. Water-borne bacterial diseases are:

 
 
 
 

397. Which of the following have algal zone?

 
 
 
 

398. The Rhizopus gametes are formed in:

 
 
 
 

399. Citrus canker is caused by:

 
 
 
 

400. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

402. Rhizoids of Riccia are :

 
 
 
 

403. Bacteria differ from viruses in being sensitive to:

 
 
 
 

404. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

406. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

410. Which of the following are included in Tracheophyta?

 
 
 
 

411. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

413. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

419. The gametophyte of fern bears:

 
 
 
 

420. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. 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:

 
 
 
 

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

 
 
 
 

425. Halophiles are the bacteria that require for growth:

 
 
 
 

426. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. Pasteurized milk is:

 
 
 
 

434. Red rot of sugarcane is caused by:

 
 
 
 

435. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

437. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

440. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

441. The sporangiophores in Rhizopus are:

 
 
 
 

442. Green plants are classified as :

 
 
 
 

443. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

446. Red rot of sugarcane is caused by :

 
 
 
 

447. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

449. The DNA of E coli is:

 
 
 
 

450. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

453. Discovery of penicillin was based on:

 
 
 
 

454. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

456. Ergot is obtained from :

 
 
 
 

457. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

460. Mycoplasma contains:

 
 
 
 

461. Viruses have:

 
 
 
 

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

 
 
 
 

463. Yeast grows more rapidly in:

 
 
 
 

464. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

465. Cleavage polyembryony is found in :

 
 
 
 

466. The prothallus of fern is:

 
 
 
 

467. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

469. Botulism is a:

 
 
 
 

470. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

472. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

474. Maximum diversity of life forms occurs in :

 
 
 
 

475. The ferns are usually found:

 
 
 
 

476. Bacteria which are spherical are called:

 
 
 
 

477. Tautonyms are illegitimate in:

 
 
 
 

478. Facultative parasite is:

 
 
 
 

479. In Selaginella, the microsporangia are:

 
 
 
 

480. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

482. Germination of the seed of Pinus is :

 
 
 
 

483. Cell walls of Gram-positive bacteria contain:

 
 
 
 

484. Leprosy is caused by:

 
 
 
 

485. Bryophyta have a special character from other plants:

 
 
 
 

486. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

489. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

491. Which lichen is called Reindeer moss?

 
 
 
 

492. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

494. Funaria is :

 
 
 
 

495. Which of the following statements is not correct?

 
 
 
 

496. Select the wrong statement:

 
 
 
 

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

 
 
 
 

498. What is streptomycin?

 
 
 
 

499. In angiosperms double fertilization represents:

 
 
 
 

500. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

503. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

507. Which of the following is sago palm?

 
 
 
 

508. Saccharomyces ludwigii ascus produces:

 
 
 
 

509. Reproduction in Rhizopus is:

 
 
 
 

510. Fruiting body of lichens is :

 
 
 
 

511. Roots are absent in :

 
 
 
 

512. Vegetative reproduction in Cycas is by means of :

 
 
 
 

513. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

514. 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:

 
 
 
 

515. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. Plasmids are:

 
 
 
 

519. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

521. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

524. Wine turns sour because of:

 
 
 
 

525. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. Spirogyra differs from moss protonema in having :

 
 
 
 

529. Which part of Riccia bears nurse cells?

 
 
 
 

530. Protozoans are considered animals because these are:

 
 
 
 

531. In Gymnocarpeae the fruiting body is :

 
 
 
 

532. The antherozoids of Funaria are :

 
 
 
 

533. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

535. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

537. Penicillin was discovered by:

 
 
 
 

538. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

541. The prothallus of fern represents the plant:

 
 
 
 

542. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

544. Bryophyta have been placed in cryptogams because:

 
 
 
 

545. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

547. Circular DNA is seen in:

 
 
 
 

548. The vascular bundles of Cycas stem are :

 
 
 
 

549. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

553. Some diseases caused by bacteria are:

 
 
 
 

554. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

556. Sleeping sickness disease in man is caused by:

 
 
 
 

557. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

561. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

563. The two conjugating gametangia of Rhizopus are:

 
 
 
 

564. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

568. The ascus of yeast contains:

 
 
 
 

569. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

571. Fern plants are:

 
 
 
 

572. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

574. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

576. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

579. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

580. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

582. Streptomycin is obtained from:

 
 
 
 

583. The chloroplast of Chlamydomonas are:

 
 
 
 

584. All protozoans possess:

 
 
 
 

585. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

587. Most primitive group of vascular plants are:

 
 
 
 

588. Majority of lichens are :

 
 
 
 

589. The spermatozoids of Cycas are :

 
 
 
 

590. Which group of algae have an incipient nucleus?

 
 
 
 

591. The central part of Funaria axis is :

 
 
 
 

592. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

593. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

595. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

597. Saccharomyces is used in:

 
 
 
 

598. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

600. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

604. Pneumonia is caused by:

 
 
 
 

605. Which of the following applies to Selaginella?

 
 
 
 

606. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

609. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

611. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

615. In Funaria :

 
 
 
 

616. Lichens are pioneers of vegetation in a :

 
 
 
 

617. The chief characteristic of class Ascomycetes is:

 
 
 
 

618. Where does meiosis occur in yeast?

 
 
 
 

619. 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?

 
 
 
 

620. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

625. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

628. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

630. Lichen show :

 
 
 
 

631. Generic name of mango is:

 
 
 
 

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

 
 
 
 

633. Which of the following lichens is harmful?

 
 
 
 

634. The fungi that grow on wood are called:

 
 
 
 

635. Meiosis in Ulothrix takes place:

 
 
 
 

636. Gymnosperms could also be called as:

 
 
 
 

637. Viroids have:

 
 
 
 

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

 
 
 
 

639. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

645. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

646. Detailed study of bacteriophage was made by:

 
 
 
 

647. Which of the following is true for Selaginella?

 
 
 
 

648. Male gametophyte of Selaginella is found:

 
 
 
 

649. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

655. Lichens form the first community in

 
 
 
 

656. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

659. Quarantine regulations are concerned with:

 
 
 
 

660. Heterospory and ligulate leaves are a feature of:

 
 
 
 

661. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

665. 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?

 
 
 
 

666. Which fixes atmospheric nitrogen?

 
 
 
 

667. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

670. Spermatophyta are characterized by producing:

 
 
 
 

671. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

674. Virus and bacteriophage are made-up of:

 
 
 
 

675. Pollination in Pinus is :

 
 
 
 

676.

677. What is absent in Deuteromycetes?

 
 
 
 

678. The seedless plants which possess vascular tissues are:

 
 
 
 

679. Placenta in fern is:

 
 
 
 

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

 
 
 
 

681. Simple polyembryony is found in :

 
 
 
 

682. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. The sori in Dryopteris are found on:

 
 
 
 

687. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

689. The sporophyte of Riccia is :

 
 
 
 

690. Male gametes in Dryopteris are:

 
 
 
 

691. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

693. 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?

 
 
 
 

694. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

698. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

700. The Rhizopus is:

 
 
 
 

701. Seeds are characteristically found in :

 
 
 
 

702. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

704. Chemosynthetic bacteria are:

 
 
 
 

705. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

707. An alga which is rich in proteins:

 
 
 
 

708. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

710. Fertility of the soil is increased by:

 
 
 
 

711. The disease symptom necrosis refers to :

 
 
 
 

712. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

715. Photosynthetic bacteria have:

 
 
 
 

716. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. Most of the lichens are composed of :

 
 
 
 

720. Winged seeds are found in :

 
 
 
 

721. Pollination drop is:

 
 
 
 

722. Ovary is absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. Select the correct statement: (NEET 2016)

 
 
 
 

726. To which class Riccia belongs :

 
 
 
 

727. Enteric bacteria are those bacteria that live:

 
 
 
 

728. Fern prothallus produces:

 
 
 
 

729. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

730. In moss, sporogenous tissue arises from:

 
 
 
 

731. Helotism word is used for the symbiosis between :

 
 
 
 

732. Club moss is the common name of :

 
 
 
 

733. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

737. Fern prothallus is:

 
 
 
 

738. What are plasmids?

 
 
 
 

739. The archegonia in Selaginella develop on:

 
 
 
 

740. The chromosomal number in:

 
 
 
 

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

 
 
 
 

742. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

744. Choose the correct statement about Spirogyra:

 
 
 
 

745. The sexual reproductive organs in Rhizopus are:

 
 
 
 

746. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

748. Bacteria are placed under:

 
 
 
 

749. Bentham and Hooker placed gymnosperms:

 
 
 
 

750. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. The megasporangium of Selaginella is:

 
 
 
 

755. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

757. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

759. Embryo formation is not known in :

 
 
 
 

760. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

762. Cycas is:

 
 
 
 

763. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

766. Which organisms are the oldest life forms?

 
 
 
 

767. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

770. Sometimes the bacterial cell is enclosed in:

 
 
 
 

771. In Cycas:

 
 
 
 

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

 
 
 
 

773. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

775. Typhoid in man is caused by:

 
 
 
 

776. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

779. Water bloom is generally caused by :

 
 
 
 

780. Mycoplasma are:

 
 
 
 

781. The chloroplast in Ulothrix is :

 
 
 
 

782. Bacteria are considered to be plants because they:

 
 
 
 

783. The plants of Funaria grow :

 
 
 
 

784. The tallest moss in the world is :

 
 
 
 

785. Which of the following statement is correct?

 
 
 
 

786. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

790. Late blight of potato is caused by :

 
 
 
 

791. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

793. Coenogamete is found in:

 
 
 
 

794. Vascular cryptogams is the term used for:

 
 
 
 

795. The truncated cone of HIV consists of:

 
 
 
 

796. The coralloid roots are :

 
 
 
 

797. Infective part of virus was discovered by:

 
 
 
 

798. Azolla growing in paddy fields helps in:

 
 
 
 

799. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

801. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

802. The archegonia of Selaginella are differentiated by:

 
 
 
 

803. The zygospore in Rhizopus on germination forms:

 
 
 
 

804. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. Diphtheria is caused by:

 
 
 
 

808. 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:

 
 
 
 

809. Gram stain is used to:

 
 
 
 

810. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

813. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

816. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

818. 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?

 
 
 
 

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

 
 
 
 

820. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

824. The gametophyte produced by apospory is :

 
 
 
 

825. Ovules are not found enclosed in ovary in :

 
 
 
 

826. LSD is:

 
 
 
 

827. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

832. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

836. The male gametes of Pinus are :

 
 
 
 

837. Rhizophore of Selaginella is:

 
 
 
 

838. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

840. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

842. Who named prion?

 
 
 
 

843. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

844. Acellular slime mold is/are:

 
 
 
 

845. In moss, calyptra is formed from:

 
 
 
 

846. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

849. Winged pollen grains are found in :

 
 
 
 

850. Fruits are not found in Cycas because:

 
 
 
 

851. All algae have:

 
 
 
 

852. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

854.

 

855. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

860. Fruits are not found in :

 
 
 
 

861. Embryophyta includes:

 
 
 
 

862. Which one of the following is a monocot?

 
 
 
 

863. Which of the following is a parasitic algae?

 
 
 
 

864. Siphonogamy is found in: