Quiz_Random

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

7. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

8. Which of the following are included in Tracheophyta?

 
 
 
 

9. 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:

 
 
 
 

10. Which of the following is true for Selaginella?

 
 
 
 

11. Most primitive embryophytes are placed in:

 
 
 
 

12. Agar-agar is obtained from:

 
 
 
 

13. The prothallus of fern is:

 
 
 
 

14. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

16. Leprosy is caused by:

 
 
 
 

17. Pseudomycelium is found in:

 
 
 
 

18. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

25. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

27. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

29. Nannandria are:

 
 
 
 

30. Among the algae kelps are :

 
 
 
 

31. The microsporophylls on the cone of Cycas are :

 
 
 
 

32. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

34. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

36. 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:

 
 
 
 

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

 
 
 
 

38. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. To which class Riccia belongs :

 
 
 
 

42. The vascular bundles of Cycas stem are :

 
 
 
 

43. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

44. Each chloroplast in Spirogyra bears :

 
 
 
 

45. The sporangia of Selaginella are attached:

 
 
 
 

46. The group algae possesses representatives belonging to kingdom:

 
 
 
 

47. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

49. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

51. Spermatophyta are characterized by producing:

 
 
 
 

52. In dinoflagellates, the two flagella are:

 
 
 
 

53. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Rhizophore of Selaginella is:

 
 
 
 

57. Generic name of mango is:

 
 
 
 

58. Cycas is different from mango in :

 
 
 
 

59. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

61. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

65. Indusium in Dryopteris is:

 
 
 
 

66. Cyanophage is a virus that attacks:

 
 
 
 

67. Triple antigen injection or vaccine are for:

 
 
 
 

68. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Late blight of potato is caused by:

 
 
 
 

75. Cryptogams include :

 
 
 
 

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

 
 
 
 

77. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Which is the nuclear material in bacteria?

 
 
 
 

85. Which causes red tide?

 
 
 
 

86. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

88. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Which is not found in bacteria?

 
 
 
 

92. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

94. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

100. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

102. Broad spectrum antibiotic is, which:

 
 
 
 

103. Reproduction in Cycas takes place by :

 
 
 
 

104. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

106. Detailed study of bacteriophage was made by:

 
 
 
 

107. Wine turns sour because of:

 
 
 
 

108. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

111. Vascular cryptogams is the term used for:

 
 
 
 

112.

 

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

 
 
 
 

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

 
 
 
 

115. What are plasmids?

 
 
 
 

116. The term stele was given by:

 
 
 
 

117. Viroids have:

 
 
 
 

118. Which among the following is a shrub?

 
 
 
 

119. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

122. Some biologists have used the term Mycetozoa for:

 
 
 
 

123. Funaria is :

 
 
 
 

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

 
 
 
 

125. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. Where does meiosis occur in yeast?

 
 
 
 

129. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

131. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

133. Rice, pea, potato are :

 
 
 
 

134. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

136. Water-net is the name of:

 
 
 
 

137. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

139. Mycoplasma was discovered by:

 
 
 
 

140. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

143. E coli is a:

 
 
 
 

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

 
 
 
 

145. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

148. Who discovered cyanophages?

 
 
 
 

149. Lichens are indicators of :

 
 
 
 

150. Linnaeus is credited with introducing:

 
 
 
 

151. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

153. Meristele of fern is:

 
 
 
 

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

 
 
 
 

155. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

158. Multicellular and jacketed sex organs are found in :

 
 
 
 

159. Soil fertility is lost by the activities of:

 
 
 
 

160. The smallest unit of classification is:

 
 
 
 

161. Early blight of potato is caused by:

 
 
 
 

162. The prothallus of fern represents the plant:

 
 
 
 

163. Club moss is the common name of :

 
 
 
 

164. All algae have:

 
 
 
 

165. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

167. Bryophyta have been placed in cryptogams because:

 
 
 
 

168. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

170. The gametophyte of moss has distinct phases :

 
 
 
 

171. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

173. Bacteria were first discovered by:

 
 
 
 

174. Special feature of pollen grains of Pinus is :

 
 
 
 

175. The flagella of Chlamydomonas are:

 
 
 
 

176. The order generally ends with:

 
 
 
 

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

 
 
 
 

178. Polystelic condition is found in:

 
 
 
 

179. Woody climbers are known as :

 
 
 
 

180. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

183. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

187. Ovules are not found enclosed in ovary in :

 
 
 
 

188. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

191. Lichens show :

 
 
 
 

192. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

194. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

196. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

198. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

200. The development of sporangium in Selaginella is:

 
 
 
 

201. Cellular slime mold is:

 
 
 
 

202. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

203. Enzymes are absent in:

 
 
 
 

204. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

207. The antherozoids of Funaria are :

 
 
 
 

208. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

212. Fruits are not found in :

 
 
 
 

213. Sporophyte of fern is:

 
 
 
 

214. The chloroplast of Chlamydomonas are:

 
 
 
 

215. Late blight of potato is caused by :

 
 
 
 

216. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

221. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

223. The source of litmus is :

 
 
 
 

224. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

226. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

228. In Cycas microsporangia are borne on:

 
 
 
 

229. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

230. The upper region of moss capsule is :

 
 
 
 

231.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

238. Which is an edible fungus?

 
 
 
 

239. What is absent in Deuteromycetes?

 
 
 
 

240. Which have the largest antherozoid?

 
 
 
 

241. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

246. Interferon is a:

 
 
 
 

247. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

249. The smallest bacterium is:

 
 
 
 

250. Mycoplasma is different from bacteria due to:

 
 
 
 

251. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

254. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

256. Majority of lichens are :

 
 
 
 

257. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

259. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. Viruses are commonly transmitted in plants through:

 
 
 
 

264. What is mycorrhiza?

 
 
 
 

265. Pollination in Cycas takes place by :

 
 
 
 

266. The largest known bacterium is:

 
 
 
 

267. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

269. Protists which are diploid reproduce sexually by:

 
 
 
 

270. Winged seeds are found in :

 
 
 
 

271. Yeast belongs to class:

 
 
 
 

272. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

273. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

277. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

280. Facultative parasite is:

 
 
 
 

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

 
 
 
 

282. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

284. Meiosis in Ulothrix takes place:

 
 
 
 

285. The chief characteristic of class Ascomycetes is:

 
 
 
 

286. The fungi are mostly:

 
 
 
 

287. In Funaria :

 
 
 
 

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

 
 
 
 

289. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

291. How a fern differs from a moss?

 
 
 
 

292. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

295. Enteric bacteria are those bacteria that live:

 
 
 
 

296. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

298. Which of the following statements is not correct?

 
 
 
 

299. Which of the following applies to Selaginella?

 
 
 
 

300. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

303. Reserve food in Euglena is:

 
 
 
 

304. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

306. Spores of which plants have chloroplast:

 
 
 
 

307. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

309. Iodine is obtained from:

 
 
 
 

310. Mucilaginous canals in Cycas are found in :

 
 
 
 

311. The sporangiophores in Rhizopus are:

 
 
 
 

312. What are Cyanobacteria?

 
 
 
 

313. All protozoans possess:

 
 
 
 

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

 
 
 
 

315. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

316. Lichens reproduce by :

 
 
 
 

317. Amoeba is a member of the phylum:

 
 
 
 

318. Which of the following does not contain chlorophyll?

 
 
 
 

319. Virion refers to:

 
 
 
 

320. Which is a redwood tree?

 
 
 
 

321. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

324. 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?

 
 
 
 

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

 
 
 
 

326. Streptomycin is obtained from:

 
 
 
 

327. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. Pteridophyta are also called:

 
 
 
 

333. Fern prothallus produces:

 
 
 
 

334. In Funaria, calyptra is derived from :

 
 
 
 

335. Diphtheria is caused by:

 
 
 
 

336. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

337. In Cycas the fertilization is:

 
 
 
 

338. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

340. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

344. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

345. NBG of Lucknow is now named as:

 
 
 
 

346. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

348. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

350. Protozoans are considered animals because these are:

 
 
 
 

351. Embryophyta includes:

 
 
 
 

352. The largest alga is:

 
 
 
 

353. 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?

 
 
 
 

354. Why is Cycas called a living fossil?

 
 
 
 

355. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

358. Photosynthetic bacteria have:

 
 
 
 

359. Viruses have:

 
 
 
 

360. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

362. Small epidermal swellings due to infection are called :

 
 
 
 

363. Pasteurized milk is:

 
 
 
 

364. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

367. The disease symptom necrosis refers to :

 
 
 
 

368. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

371. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

374. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

376. Black rust of wheat is caused by:

 
 
 
 

377. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

379. The megasporangium of Selaginella is:

 
 
 
 

380. Citrus canker is caused by:

 
 
 
 

381. Asexual reproductive body of Volvox is called:

 
 
 
 

382. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

390. . Tapetum develops in:

 
 
 
 

391. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

395. Most primitive group of vascular plants are:

 
 
 
 

396. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

400. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

403. Bryophyta have a special character from other plants:

 
 
 
 

404. Virus and bacteriophage are made-up of:

 
 
 
 

405.

406. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

410. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

414. Cycas is similar to a mustard plant :

 
 
 
 

415. White rust of crucifers is caused by:

 
 
 
 

416. Smallpox is caused by:

 
 
 
 

417. The tree fern is:

 
 
 
 

418. Sometimes the bacterial cell is enclosed in:

 
 
 
 

419. Seeds are characteristically found in :

 
 
 
 

420. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

422. Metulae are found in:

 
 
 
 

423. LSD is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

428. Which is a fungicide?

 
 
 
 

429. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

431. The most primitive vascular plants is:

 
 
 
 

432. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

435. Cocci types of bacteria are:

 
 
 
 

436. Oswald Tippo’s classification is:

 
 
 
 

437. Helotism word is used for the symbiosis between :

 
 
 
 

438. The DNA of E coli is:

 
 
 
 

439. Heterocysts are found in :

 
 
 
 

440. Pinus gerardiana is :

 
 
 
 

441. Vascular tissue is found in :

 
 
 
 

442. The lambda phase is a:

 
 
 
 

443. Some diseases caused by bacteria are:

 
 
 
 

444. 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?

 
 
 
 

445. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

452. Red rot of sugarcane is caused by :

 
 
 
 

453. Botulism is a:

 
 
 
 

454. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

456. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. Ginkgo biloba is a:

 
 
 
 

463. Which of the following is a heterosporous pteridophyte?

 
 
 
 

464. The gametophyte produced by apospory is :

 
 
 
 

465. The young leaves of Cycas have :

 
 
 
 

466. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

469. Etiology includes the study of :

 
 
 
 

470. Pythium debaryanum is the causative agent of:

 
 
 
 

471. Fern prothallus is:

 
 
 
 

472. Sporophyte of Funaria is :

 
 
 
 

473. Halophiles are the bacteria that require for growth:

 
 
 
 

474. The alga, Spirogyra are found in :

 
 
 
 

475. Rhizoids of Riccia are :

 
 
 
 

476. Which of the following is a monocot?

 
 
 
 

477. Fruits are not found in:

 
 
 
 

478. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

484. Cycas is:

 
 
 
 

485. Botulinum toxin effects:

 
 
 
 

486. Which is a gametophytic tissue?

 
 
 
 

487. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

490. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

492. Which group of algae have an incipient nucleus?

 
 
 
 

493. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

495. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

499. Roots are absent in :

 
 
 
 

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

 
 
 
 

501. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

503. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

505. Most common type of conjugation in Spirogyra is :

 
 
 
 

506. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

508. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

511. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

513. The sexual reproductive organs in Rhizopus are:

 
 
 
 

514. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

517. Facultative saprophyte is:

 
 
 
 

518. Diploxylic vascular bundles are found in:

 
 
 
 

519. The gametophyte of fern bears:

 
 
 
 

520. Who named prion?

 
 
 
 

521. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

524. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

527. The fungi used as food are:

 
 
 
 

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

 
 
 
 

529. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

531. The fern plant is:

 
 
 
 

532. Coenogamete is found in:

 
 
 
 

533. Ovary is absent in :

 
 
 
 

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

 
 
 
 

535. Fairy ring is the name given to:

 
 
 
 

536. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

540. Male gametophyte of Selaginella is found:

 
 
 
 

541. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

543. Penicillin is obtained from:

 
 
 
 

544. In Pteris, the archegonia are present:

 
 
 
 

545. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

547. Select the wrong statement:

 
 
 
 

548. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

551. Most of the algae are :

 
 
 
 

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

 
 
 
 

553. Which is an exception to cell theory?

 
 
 
 

554. Which is a tautonym?

 
 
 
 

555. Pteridophytes are also known as :

 
 
 
 

556. Sexual reproduction of lichen is due to :

 
 
 
 

557. Choose the correct statement about Spirogyra:

 
 
 
 

558. Ethylene oxide is widely used to:

 
 
 
 

559. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

563. Which of the following lichens is harmful?

 
 
 
 

564. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

573. Number of capsomeres forming capsid of TMV is:

 
 
 
 

574. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

577. Heterosporous pteridophytes always form:

 
 
 
 

578. Which of the following statement is correct?

 
 
 
 

579. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

582. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

584. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

587. The genetic material of poxvirus is:

 
 
 
 

588. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

590. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

592. Which statement is wrong in regard to bacteria?

 
 
 
 

593. Sexual reproduction in Rhizopus is by:

 
 
 
 

594. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

596. The lichens growing on rocks are called :

 
 
 
 

597. In moss, sporogenous tissue arises from:

 
 
 
 

598. Plasmids are:

 
 
 
 

599. The megaspore of Selaginella on germination produces:

 
 
 
 

600. Mixed cropping helps :

 
 
 
 

601. John Hutchinson divided dicots into two divisions:

 
 
 
 

602. The archegonia of Selaginella are differentiated by:

 
 
 
 

603. In a bacteriophage, DNA is present in:

 
 
 
 

604. Bacteria are placed under:

 
 
 
 

605. Azolla growing in paddy fields helps in:

 
 
 
 

606. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

608. Methanogens belong to:

 
 
 
 

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

 
 
 
 

610. Green plants are classified as:

 
 
 
 

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

 
 
 
 

612. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

614. Cleavage polyembryony is found in :

 
 
 
 

615. The tallest moss in the world is :

 
 
 
 

616. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

621. Chemosynthetic bacteria are:

 
 
 
 

622. In moss, peristomial teeth are:

 
 
 
 

623. Psilotum is:

 
 
 
 

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

 
 
 
 

625. Chemosynthetic bacteria are:

 
 
 
 

626. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

629. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

631. What is streptomycin?

 
 
 
 

632. Fern plants are:

 
 
 
 

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

 
 
 
 

634. Acetobacter is useful in:

 
 
 
 

635. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

637. 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?

 
 
 
 

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

 
 
 
 

639. Who discovered streptomycin?

 
 
 
 

640. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

648. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

652. The zoospores of Ulothrix are :

 
 
 
 

653. The fungi that grow on wood are called:

 
 
 
 

654. Some bacteria cannot be killed easily because of:

 
 
 
 

655. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

657. The chromosomal number in:

 
 
 
 

658. Bacteria are considered to be plants because they:

 
 
 
 

659. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

661. Bacteriophage consists of:

 
 
 
 

662. Placenta in fern is:

 
 
 
 

663. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

664. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

667. Anoxygenic photosynthesis occurs in:

 
 
 
 

668. Fertility of the soil is increased by:

 
 
 
 

669. Saccharomyces is well known for:

 
 
 
 

670. Azolla and Salvinia both are:

 
 
 
 

671. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

673. Downy mildew disease is caused by :

 
 
 
 

674. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. Ergot is obtained from :

 
 
 
 

678. The mode of nutrition of bacteria is usually:

 
 
 
 

679. Spermatophyta are characterized by producing:

 
 
 
 

680. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

682. Gametophyte is the main plant body in :

 
 
 
 

683. Clostridium can:

 
 
 
 

684. The spur of Pinus roxburghii has :

 
 
 
 

685. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

688. In moss, sporophyte is formed on:

 
 
 
 

689. Black rust of wheat is caused by:

 
 
 
 

690. Bacteria growing on synthetic medium are called:

 
 
 
 

691. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

693. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

696. Proembryo in Pinus is :

 
 
 
 

697. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

700. Spirogyra represents the :

 
 
 
 

701. Lichen show :

 
 
 
 

702. Photosynthetic protists belong to:

 
 
 
 

703. Red rot of sugarcane is caused by :

 
 
 
 

704. Siphonogamy is found in:

 
 
 
 

705. Isomorphic type alternation of generation is found in:

 
 
 
 

706. The leaves of Funaria are :

 
 
 
 

707. Quarantine regulations are concerned with:

 
 
 
 

708. Which of the following have a prokaryotic cell?

 
 
 
 

709. Germination of the seed of Pinus is :

 
 
 
 

710. Water-borne bacterial diseases are:

 
 
 
 

711. In angiosperms double fertilization represents:

 
 
 
 

712. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

714. Penicillin was discovered by:

 
 
 
 

715. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

716. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

718. To which country Antony van Leeuwenhoek belong?

 
 
 
 

719. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

723. In moss, reduction division occurs in :

 
 
 
 

724. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

727. In Cycas:

 
 
 
 

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

 
 
 
 

729. Ovary is absent in:

 
 
 
 

730. Milk is converted to curd by:

 
 
 
 

731. Which lichen is called Reindeer moss?

 
 
 
 

732. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

735. Bentham and Hooker placed gymnosperms:

 
 
 
 

736. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

738. How is moss different from fern?

 
 
 
 

739. The first to isolate a plant virus was:

 
 
 
 

740. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

742. Pinus microsporophyll bears:

 
 
 
 

743. Which fixes atmospheric nitrogen?

 
 
 
 

744. Which part of Riccia bears nurse cells?

 
 
 
 

745. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

746. Endemic plants are characterised by their:

 
 
 
 

747. Antibiotic has been extracted from :

 
 
 
 

748. Ectocarpus produces:

 
 
 
 

749. Which of the following is a parasitic algae?

 
 
 
 

750. Funaria is :

 
 
 
 

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

 
 
 
 

752. The orders generally have the uniform endings:

 
 
 
 

753. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

756. Genetic material of TMV is:

 
 
 
 

757. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

759. The seedless plants which possess vascular tissues are:

 
 
 
 

760. Discovery of penicillin was based on:

 
 
 
 

761. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

763. Which organisms are the oldest life forms?

 
 
 
 

764. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

765. Which of the following have algal zone?

 
 
 
 

766. The ferns are usually found:

 
 
 
 

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

 
 
 
 

768. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

772. First animal pathogenic virus was discovered by:

 
 
 
 

773. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

775. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

777. Pollination drop is:

 
 
 
 

778. Sleeping sickness disease in man is caused by:

 
 
 
 

779. Male gametes in Dryopteris are:

 
 
 
 

780. Chief constituents of bordeaux mixture are :

 
 
 
 

781. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

785. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

788. The similarity between cyanobacteria and bacteria:

 
 
 
 

789. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

790. Most primitive kind of flower is represented by:

 
 
 
 

791. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. Which of the following shows heterotrichous habit?

 
 
 
 

795. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

797. The two conjugating gametangia of Rhizopus are:

 
 
 
 

798. Fruits are not found in Cycas because:

 
 
 
 

799. Nitrifying bacteria play an important role by converting:

 
 
 
 

800. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

802. Spirogyra differs from moss protonema in having :

 
 
 
 

803. Longest known virus is:

 
 
 
 

804. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

806. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

812. Seeds are characteristically found in:

 
 
 
 

813. The rhizoids of Funaria are :

 
 
 
 

814. Lichens form the first community in

 
 
 
 

815. Parmelia belongs to :

 
 
 
 

816. The disease apple scab is caused by:

 
 
 
 

817. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

819. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

822. Funaria are commonly found :

 
 
 
 

823. Pasteur is famous for his:

 
 
 
 

824. 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:

 
 
 
 

825. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

831. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

833. In Cycas which structure is equivalent to stamen?

 
 
 
 

834. The fungi are usually:

 
 
 
 

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

 
 
 
 

836. Which is not true for Escherichia coli?

 
 
 
 

837. Selaginella differs from Moss in having:

 
 
 
 

838. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

839. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

844. Pinus is:

 
 
 
 

845. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

849. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

851. Acellular slime mold is/are:

 
 
 
 

852. Select the wrong statement:

 
 
 
 

853. What is a vector?

 
 
 
 

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

 
 
 
 

855. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

857.

858. One of the distinctive feature of Spirogyra is :

 
 
 
 

859. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

862. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

864. Bacteria differ from viruses in being sensitive to: