Quiz_Random

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

 
 
 
 

2. Smut of maize is caused by :

 
 
 
 

3. How a fern differs from a moss?

 
 
 
 

4. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

6. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

8. 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?

 
 
 
 

9. Rhizoids of Riccia are :

 
 
 
 

10. Embryo formation is not known in :

 
 
 
 

11. Antibiotic has been extracted from :

 
 
 
 

12. The Rhizopus is:

 
 
 
 

13. Antibiotics cure the disease by:

 
 
 
 

14. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

18. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

20. One of the distinctive feature of Spirogyra is :

 
 
 
 

21. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Gametophyte is the main plant body in :

 
 
 
 

31. Gymnosperms could also be called as:

 
 
 
 

32. Selaginella differs from Moss in having:

 
 
 
 

33. Ginkgo biloba is a:

 
 
 
 

34. In Cycas:

 
 
 
 

35. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. Which is an exception to cell theory?

 
 
 
 

46. The similarity between cyanobacteria and bacteria:

 
 
 
 

47. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

49. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

51. Little leaf disease of Brinjal is caused by:

 
 
 
 

52. Chief constituents of bordeaux mixture are :

 
 
 
 

53. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

55. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

57. What are plasmids?

 
 
 
 

58. Anoxygenic photosynthesis occurs in:

 
 
 
 

59. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

61. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

63. Which of the following is a heterosporous pteridophyte?

 
 
 
 

64. Fern prothallus produces:

 
 
 
 

65. Pteridophytes are also known as :

 
 
 
 

66. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

69. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

71. Endemic plants are characterised by their:

 
 
 
 

72. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

74. The spur of Pinus roxburghii has :

 
 
 
 

75. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. The leaf of Cycas shows:

 
 
 
 

81. The gametophyte produced by apospory is :

 
 
 
 

82. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Embryophyta includes :

 
 
 
 

86. Which of the following are included in Tracheophyta?

 
 
 
 

87. Which of the following is a monocot?

 
 
 
 

88. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

90. Milk is converted to curd by:

 
 
 
 

91. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

93. Which of the following shows heterotrichous habit?

 
 
 
 

94. Polystelic condition is found in:

 
 
 
 

95. Which is a fungicide?

 
 
 
 

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

 
 
 
 

97. Who discovered cyanophages?

 
 
 
 

98. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

99. Which of the following are absent in Mycoplasma?

 
 
 
 

100. Which is a gametophytic tissue?

 
 
 
 

101. Usually, bacteria reproduce by:

 
 
 
 

102. Bacteria differ from viruses in being sensitive to:

 
 
 
 

103. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. Fern plants are:

 
 
 
 

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

 
 
 
 

109. Germ theory of disease was proposed by:

 
 
 
 

110. Facultative parasite is:

 
 
 
 

111. Sometimes the bacterial cell is enclosed in:

 
 
 
 

112. Cycas is:

 
 
 
 

113. Botulinum toxin effects:

 
 
 
 

114. In Gymnocarpeae the fruiting body is :

 
 
 
 

115. Oswald Tippo’s classification was based on :

 
 
 
 

116. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

118. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

124. In binomial system most of the words are:

 
 
 
 

125. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

129. Which have the largest antherozoid?

 
 
 
 

130. The archegonia of Selaginella are differentiated by:

 
 
 
 

131. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. Pseudomycelium is found in:

 
 
 
 

139. Pneumonia is caused by:

 
 
 
 

140. Ovules are not found enclosed in ovary of:

 
 
 
 

141. Multicellular and jacketed sex organs are found in :

 
 
 
 

142. Ovules are not found enclosed in ovary in :

 
 
 
 

143. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. Bacteria are found everywhere, except:

 
 
 
 

150. Cyathia is characterized by:

 
 
 
 

151. Cycas is similar to a mustard plant :

 
 
 
 

152. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

155. The vascular bundles of Cycas stem are :

 
 
 
 

156. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

158. Bivalved siliceous shell or frustule occur in:

 
 
 
 

159. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. Water-borne bacterial diseases are:

 
 
 
 

163. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

166. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

174. 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:

 
 
 
 

175. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

176. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

178. Most primitive embryophytes are placed in :

 
 
 
 

179. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

181. The coralloid roots are :

 
 
 
 

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

 
 
 
 

183. Lichens form the first community in

 
 
 
 

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

 
 
 
 

185. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. Triple antigen injection or vaccine are for:

 
 
 
 

190. The plants of Funaria grow :

 
 
 
 

191. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

193. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

197. The fungi used as food are:

 
 
 
 

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

 
 
 
 

199. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

201. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

203. Common phycobiont in a lichen is :

 
 
 
 

204. Winged seeds are found in :

 
 
 
 

205. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

208. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

212. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

214. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

218. Which of the following applies to Selaginella?

 
 
 
 

219. In a diplontic life cycle:

 
 
 
 

220. Who discovered heterothallism in fungi?

 
 
 
 

221. Aflatoxin is produced by:

 
 
 
 

222. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. Vegetative reproduction in Cycas is by means of :

 
 
 
 

226. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

230. All archaebacteria lack:

 
 
 
 

231. Which bacteria convert nitrate into nitrogen?

 
 
 
 

232. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

239. Bacteria are placed under:

 
 
 
 

240. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

242. Iodine is obtained from :

 
 
 
 

243. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. Tautonyms are illegitimate in:

 
 
 
 

249. Protistan algae obtain their food as:

 
 
 
 

250. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

252. The sporophyte of Riccia is represented by :

 
 
 
 

253. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

255. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

258. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

261. The leaves of Funaria are :

 
 
 
 

262. The zygospore in Rhizopus on germination forms:

 
 
 
 

263. Ovules are not found enclosed in ovary in :

 
 
 
 

264. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. Lichens are pioneers of vegetation in a :

 
 
 
 

268. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

270. The ascus of yeast contains:

 
 
 
 

271. Pasteurization of milk involves heating for:

 
 
 
 

272. Each chloroplast in Spirogyra bears :

 
 
 
 

273. In Cycas which structure is equivalent to stamen?

 
 
 
 

274. Some biologists have used the term Mycetozoa for:

 
 
 
 

275. Which is the correct statement about Selaginella?

 
 
 
 

276. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

278. Chemosynthetic bacteria are:

 
 
 
 

279. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

282. Where does meiosis occur in yeast?

 
 
 
 

283. Male gametes in Dryopteris are:

 
 
 
 

284. 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:

 
 
 
 

285. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

290. Simple polyembryony is found in :

 
 
 
 

291. 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:

 
 
 
 

292. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

295. Vascular cryptogams is the term used for:

 
 
 
 

296. The fungi are mostly:

 
 
 
 

297. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

300. What is mycorrhiza?

 
 
 
 

301. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

308. The disease symptom necrosis refers to :

 
 
 
 

309. Which is a redwood tree?

 
 
 
 

310. Which among the following is a shrub?

 
 
 
 

311. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. Halophiles are the bacteria that require for growth:

 
 
 
 

316. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

320. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

322. The prothallus of fern is:

 
 
 
 

323. The first to isolate a plant virus was:

 
 
 
 

324. The order generally ends with:

 
 
 
 

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

 
 
 
 

326. Vascular tissue is found in :

 
 
 
 

327. Who named prion?

 
 
 
 

328. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

330. Most of the lichens are composed of :

 
 
 
 

331. LSD is:

 
 
 
 

332. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. Winged pollen grains are found in :

 
 
 
 

336. Proembryo in Pinus is :

 
 
 
 

337. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

340. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. Placenta in fern is:

 
 
 
 

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

 
 
 
 

345. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

351.

352. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

354. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

358. Botulism is a:

 
 
 
 

359. Penicillin is obtained from:

 
 
 
 

360. In Funaria :

 
 
 
 

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

 
 
 
 

362. In Cycas the fertilization is:

 
 
 
 

363. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

365. Azolla growing in paddy fields helps in:

 
 
 
 

366. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

368.

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

 
 
 
 

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

 
 
 
 

371. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

373. Saccharomyces is well known for:

 
 
 
 

374. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

376. Photoautotrophic bacteria have:

 
 
 
 

377. Bacteria are considered to be plants because they:

 
 
 
 

378. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

380. In angiosperms double fertilization represents:

 
 
 
 

381. Pythium debaryanum is the causative agent of:

 
 
 
 

382. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

385. Virion refers to:

 
 
 
 

386. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

388. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

390. Fairy ring is the name given to:

 
 
 
 

391. In Cycas microsporangia are borne on:

 
 
 
 

392. In tracheophyta:

 
 
 
 

393. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

396. Discovery of penicillin was based on:

 
 
 
 

397. Heterocysts are found in :

 
 
 
 

398. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

400. Siphonogamy is found in:

 
 
 
 

401. Ovary is absent in :

 
 
 
 

402. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

404. Mycoplasma is different from bacteria due to:

 
 
 
 

405. Viruses are considered to be:

 
 
 
 

406. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

408. Methanogens belong to:

 
 
 
 

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

 
 
 
 

410. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Pythium debaryanum is the causative agent of:

 
 
 
 

414. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

416. Circular DNA is seen in:

 
 
 
 

417. Synzoospore is produced in:

 
 
 
 

418. Chemosynthetic bacteria are:

 
 
 
 

419. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

421. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

425. The largest alga is:

 
 
 
 

426. Mycoplasma are sensitive to:

 
 
 
 

427. Fruits are not found in :

 
 
 
 

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

 
 
 
 

429. Longest known virus is:

 
 
 
 

430. Fern phloem lacks:

 
 
 
 

431. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

433. 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:

 
 
 
 

434. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

436. 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?

 
 
 
 

437. All protozoans possess:

 
 
 
 

438. Heterosporous pteridophytes always form:

 
 
 
 

439. Water-net is the name of:

 
 
 
 

440. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

442. Red rot of sugarcane is caused by :

 
 
 
 

443. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

445. The megasporangium of Selaginella is:

 
 
 
 

446. The lambda phase is a:

 
 
 
 

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

 
 
 
 

448. Most appropriate word for protozoans is:

 
 
 
 

449. Yeast is a source of:

 
 
 
 

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

 
 
 
 

451. The most primitive vascular plants is:

 
 
 
 

452. Who among the following discovered virus?

 
 
 
 

453. Majority of lichens are :

 
 
 
 

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

 
 
 
 

455. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

457. The chief characteristic of class Ascomycetes is:

 
 
 
 

458. Bacteria growing on synthetic medium are called:

 
 
 
 

459. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

461. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

463. Meristele of fern is:

 
 
 
 

464. NBG of Lucknow is now named as:

 
 
 
 

465.

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

 
 
 
 

467. The Rhizopus gametes are formed in:

 
 
 
 

468. Select the wrong statement:

 
 
 
 

469. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

472. Funaria is :

 
 
 
 

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

 
 
 
 

474. Pteridophyta are also called:

 
 
 
 

475. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

480. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

482. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

486. In Funaria, calyptra is derived from :

 
 
 
 

487. First animal pathogenic virus was discovered by:

 
 
 
 

488. The prothallus of fern represents the plant:

 
 
 
 

489. The chloroplast in Ulothrix is :

 
 
 
 

490. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

492. Fertility of the soil is increased by:

 
 
 
 

493. Green plants are classified as:

 
 
 
 

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

 
 
 
 

495. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

497. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

499. Economic importance of bacteria lies in their being:

 
 
 
 

500. Cap cells are found in the filament of:

 
 
 
 

501. Sleeping sickness disease in man is caused by:

 
 
 
 

502. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

505. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

508. Bacteria were first discovered by:

 
 
 
 

509. In Selaginella, the microsporangia are:

 
 
 
 

510. Bacteria which are spherical are called:

 
 
 
 

511. In dinoflagellates, the two flagella are:

 
 
 
 

512. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

514. Asexual reproductive body of Volvox is called:

 
 
 
 

515. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. Which causes red tide?

 
 
 
 

522. The central part of Funaria axis is :

 
 
 
 

523. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

526. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

530. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

532. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

535. The term stele was given by:

 
 
 
 

536. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

538. Who discovered streptomycin?

 
 
 
 

539. Mycoplasma are:

 
 
 
 

540. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

542. The truncated cone of HIV consists of:

 
 
 
 

543. Zoogametes are not found in:

 
 
 
 

544. The alga, Spirogyra are found in :

 
 
 
 

545. 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?

 
 
 
 

546. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

548. All algae have:

 
 
 
 

549. Male gametophyte of Selaginella is found:

 
 
 
 

550. Ulothrix produces :

 
 
 
 

551. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

553. The middle sterile part of capsule is called:

 
 
 
 

554. Funaria can be differentiated from Cycas :

 
 
 
 

555. Kuru, a human disease is caused by:

 
 
 
 

556. Citrus canker is caused by:

 
 
 
 

557. Pinus is:

 
 
 
 

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

 
 
 
 

559. In Pteris, the archegonia are present:

 
 
 
 

560. Some diseases caused by bacteria are:

 
 
 
 

561. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. Most primitive kind of flower is represented by:

 
 
 
 

568. The sexual reproductive organs in Rhizopus are:

 
 
 
 

569. Sexual reproduction of lichen is due to :

 
 
 
 

570. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

574. Ethylene oxide is widely used to:

 
 
 
 

575. Nannandria are:

 
 
 
 

576. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

578. Nitrogen-fixing bacteria may be located:

 
 
 
 

579. Smallpox is caused by:

 
 
 
 

580. Etiology includes the study of :

 
 
 
 

581. The mycelium of Rhizopus is:

 
 
 
 

582. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

585. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

587. The lichens growing on rocks are called :

 
 
 
 

588. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

589. An alga which is rich in proteins:

 
 
 
 

590. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

591. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

593. White rust of crucifers is caused by:

 
 
 
 

594. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

596. What is special feature of fern archegonia?

 
 
 
 

597. The two conjugating gametangia of Rhizopus are:

 
 
 
 

598. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

600. The chromosomal number in:

 
 
 
 

601. Cellular slime mold is:

 
 
 
 

602. Cell walls of Gram-positive bacteria contain:

 
 
 
 

603. The DNA of E coli is:

 
 
 
 

604. The tallest moss in the world is :

 
 
 
 

605. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

608. Which class of Protozoa includes all parasitic forms?

 
 
 
 

609. Virus and bacteriophage are made-up of:

 
 
 
 

610. Seeds are characteristically found in:

 
 
 
 

611. Funaria are commonly found :

 
 
 
 

612. Viruses are commonly transmitted in plants through:

 
 
 
 

613. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. In moss, sporogenous tissue arises from:

 
 
 
 

617. The disease apple scab is caused by:

 
 
 
 

618. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

622. Reproduction in Rhizopus is:

 
 
 
 

623. Acetobacter is useful in:

 
 
 
 

624. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Metulae are found in:

 
 
 
 

628. Liverworts are included in :

 
 
 
 

629. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

631. Reserve food in Euglena is:

 
 
 
 

632. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

633. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

638. Heterospory and ligulate leaves are a feature of:

 
 
 
 

639. The fern plant is:

 
 
 
 

640. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

641. Which organisms are the oldest life forms?

 
 
 
 

642. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. The sporophyte of Riccia is :

 
 
 
 

646. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

648. Select the correct statement: (NEET 2016)

 
 
 
 

649. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

651. The teeth of peristome of Funaria are :

 
 
 
 

652. Red rot of sugarcane is caused by :

 
 
 
 

653. Coenogamete is found in:

 
 
 
 

654. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

656. Select the wrong statement:

 
 
 
 

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

 
 
 
 

658. Viruses have:

 
 
 
 

659. The tree fern is:

 
 
 
 

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

 
 
 
 

661. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

663. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

665. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

667. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

670. True sexuality is not found in:

 
 
 
 

671. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

673. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

676. Which of the following have a prokaryotic cell?

 
 
 
 

677. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

680. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

683. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

685. The nucleus of bacteria is:

 
 
 
 

686. The development of sporangium in Selaginella is:

 
 
 
 

687. Clostridium can:

 
 
 
 

688. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

691. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

693. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

696. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

698. In moss, stomata are found:

 
 
 
 

699. Mucilaginous canals in Cycas are found in :

 
 
 
 

700. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

702. The phloem of vascular system of Cycas is :

 
 
 
 

703. Cycas is :

 
 
 
 

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

 
 
 
 

705. John Hutchinson divided dicots into two divisions:

 
 
 
 

706. Interferon is a:

 
 
 
 

707. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

710. The upper region of moss capsule is :

 
 
 
 

711. The stele of Dryopteris is a:

 
 
 
 

712. What is streptomycin?

 
 
 
 

713. Green plants are classified as :

 
 
 
 

714. E coli is a:

 
 
 
 

715. The development of Selaginella embryo is:

 
 
 
 

716. The most important property of yeast is:

 
 
 
 

717. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

719. A gill of Agaricus:

 
 
 
 

720. Pollination in Cycas takes place by :

 
 
 
 

721. Desired type of Cycas can be grown by:

 
 
 
 

722. Which of the following statement is correct?

 
 
 
 

723. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

727. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

731. Photosynthetic bacteria have:

 
 
 
 

732. Pinus microsporophyll bears:

 
 
 
 

733. Sporophyte of Funaria is :

 
 
 
 

734. Generic name of mango is:

 
 
 
 

735. Protists which are diploid reproduce sexually by:

 
 
 
 

736. Rice, pea, potato are :

 
 
 
 

737. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

743. Cycas revoluta is widely grown as :

 
 
 
 

744. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

746. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

748. Broad spectrum antibiotic is, which:

 
 
 
 

749. Bacteriophages have been used as:

 
 
 
 

750. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

752. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

754. Mixed cropping helps :

 
 
 
 

755. Soil fertility is lost by the activities of:

 
 
 
 

756. Detailed study of bacteriophage was made by:

 
 
 
 

757. Yeast belongs to class:

 
 
 
 

758. Quarantine regulations are concerned with:

 
 
 
 

759. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. Which of the following have algal zone?

 
 
 
 

765. Lichens show :

 
 
 
 

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

 
 
 
 

767. Which part of Riccia bears nurse cells?

 
 
 
 

768. Azolla and Salvinia both are:

 
 
 
 

769. Redness of red sea is due to :

 
 
 
 

770. The smallest unit of classification is:

 
 
 
 

771. Protozoans are considered animals because these are:

 
 
 
 

772. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

774. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

776. Gram stain is used to:

 
 
 
 

777. Which statement is wrong in regard to bacteria?

 
 
 
 

778. Which of the following are included in Tracheophyta?

 
 
 
 

779. Pollination drop is:

 
 
 
 

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

 
 
 
 

781. The fungi are usually:

 
 
 
 

782. Why is Cycas called a living fossil?

 
 
 
 

783. In moss, reduction division occurs in :

 
 
 
 

784. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

786. Funaria is :

 
 
 
 

787. Cryptogams include :

 
 
 
 

788. In Gymnosperms endosperm is a:

 
 
 
 

789. TMV was isolated in crystalline form by:

 
 
 
 

790. Total parasites belong to:

 
 
 
 

791. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. 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:

 
 
 
 

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

 
 
 
 

796. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

799. Bacteriophage consists of:

 
 
 
 

800. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. In moss, peristomial teeth are:

 
 
 
 

808. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

812. Club moss is the common name of :

 
 
 
 

813. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

815. Diphtheria is caused by:

 
 
 
 

816. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

819. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

820. Lichen show :

 
 
 
 

821. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

823.

 

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

 
 
 
 

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

 
 
 
 

826. Isomorphic type alternation of generation is found in:

 
 
 
 

827. Centric discoid form of diatom is:

 
 
 
 

828. The gametophyte of fern bears:

 
 
 
 

829. Leprosy is caused by:

 
 
 
 

830. Special feature of pollen grains of Pinus is :

 
 
 
 

831. The megaspore of Selaginella on germination produces:

 
 
 
 

832. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

834. Most primitive group of vascular plants are:

 
 
 
 

835. Yeast grows more rapidly in:

 
 
 
 

836. The root nodules of leguminous plants contain:

 
 
 
 

837. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

839. Viroids have:

 
 
 
 

840. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. Spermatophyta are characterized by producing:

 
 
 
 

844. The source of litmus is :

 
 
 
 

845. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

847. Number of capsomeres forming capsid of TMV is:

 
 
 
 

848. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

852. Reproduction in Cycas takes place by :

 
 
 
 

853. What is absent in Deuteromycetes?

 
 
 
 

854. Downy mildew disease is caused by :

 
 
 
 

855. What is a vector?

 
 
 
 

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

 
 
 
 

857. Fruits are not found in:

 
 
 
 

858. The mode of nutrition of bacteria is usually:

 
 
 
 

859. Lichens reproduce by :

 
 
 
 

860. 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?

 
 
 
 

861. Lichens are the indicator of pollution :

 
 
 
 

862. Most of the algae are :

 
 
 
 

863. Embryophyta includes:

 
 
 
 

864. Among the algae kelps are :