Quiz_Random

1. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

3. The nucleus of bacteria is:

 
 
 
 

4. Azolla and Salvinia both are:

 
 
 
 

5. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

7. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

9. Discovery of penicillin was based on:

 
 
 
 

10. Mycoplasma are sensitive to:

 
 
 
 

11. The root nodules of leguminous plants contain:

 
 
 
 

12. Most primitive embryophytes are placed in:

 
 
 
 

13. The sori in Dryopteris are found on:

 
 
 
 

14. Smallpox is caused by:

 
 
 
 

15. Fruits are not found in Cycas because:

 
 
 
 

16. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

18. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

21. Penicillin was discovered by:

 
 
 
 

22. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

24. Cycas plant in appearance resembles :

 
 
 
 

25. First animal pathogenic virus was discovered by:

 
 
 
 

26. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

28. The sporophyte of Riccia is represented by :

 
 
 
 

29. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

31. The leaves of Funaria are :

 
 
 
 

32. Banana bunchy top is caused by :

 
 
 
 

33. The sexual reproductive organs in Rhizopus are:

 
 
 
 

34. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

36.

37. What are Cyanobacteria?

 
 
 
 

38. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

40. The flagella of Chlamydomonas are:

 
 
 
 

41. Centric discoid form of diatom is:

 
 
 
 

42. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

47. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

49. Multicellular and jacketed sex organs are found in :

 
 
 
 

50. In moss, conducting tissue is made up of

 
 
 
 

51. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

57. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

58. Cryptogams include :

 
 
 
 

59. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

62. Chemosynthetic bacteria are:

 
 
 
 

63. The lambda phase is a:

 
 
 
 

64. Bacteria were first discovered by:

 
 
 
 

65. Antibiotics cure the disease by:

 
 
 
 

66. Gymnosperms could also be called as:

 
 
 
 

67. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

73. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

75. Which of the following are included in Tracheophyta?

 
 
 
 

76. What is a vector?

 
 
 
 

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

 
 
 
 

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. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

81. Mycoplasma is different from bacteria due to:

 
 
 
 

82. TMV was isolated in crystalline form by:

 
 
 
 

83. Photoautotrophic bacteria have:

 
 
 
 

84. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

86. Pneumonia is caused by:

 
 
 
 

87. Milk is converted to curd by:

 
 
 
 

88. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

90. Seeds are characteristically found in:

 
 
 
 

91. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

92. The prothallus of fern represents the plant:

 
 
 
 

93. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

95. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

97. Heterospory and ligulate leaves are a feature of:

 
 
 
 

98. Mucilaginous canals in Cycas are found in :

 
 
 
 

99. Heterosporous pteridophytes always form:

 
 
 
 

100. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

106. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

108. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

111. Funaria is :

 
 
 
 

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

 
 
 
 

113. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

115. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. Cellular slime mold is:

 
 
 
 

119. One of the distinctive feature of Spirogyra is :

 
 
 
 

120. The fungi used as food are:

 
 
 
 

121. Which of the following is a heterosporous pteridophyte?

 
 
 
 

122. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

126. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

128. In Selaginella, the microsporangia are:

 
 
 
 

129. Oswald Tippo’s classification is:

 
 
 
 

130. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

132. The development of sporangium in Selaginella is:

 
 
 
 

133. Viruses have:

 
 
 
 

134. The gametophyte of fern is as:

 
 
 
 

135. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

137. Which bacteria convert nitrate into nitrogen?

 
 
 
 

138. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

140. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

142. Male gametophyte of Selaginella is found:

 
 
 
 

143. Antibiotic has been extracted from :

 
 
 
 

144. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

147. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

150. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

153. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

154. Late blight of potato is caused by:

 
 
 
 

155. Ectocarpus produces:

 
 
 
 

156. The chief characteristic of class Ascomycetes is:

 
 
 
 

157. In Herpes virus DNA is:

 
 
 
 

158. The leafy fern plant represents the:

 
 
 
 

159. Funaria are commonly found :

 
 
 
 

160. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

163. Special feature of pollen grains of Pinus is :

 
 
 
 

164. The vascular bundles of Cycas stem are :

 
 
 
 

165. The ascus of yeast contains:

 
 
 
 

166. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

169. Fruits are not found in:

 
 
 
 

170. Cyanophage is a virus that attacks:

 
 
 
 

171. Which of the following is sago palm?

 
 
 
 

172. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

174. Iodine is obtained from :

 
 
 
 

175. Vegetative reproduction in Cycas is by means of :

 
 
 
 

176. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

179. Ovules are not found enclosed in ovary in :

 
 
 
 

180. Mixed cropping helps :

 
 
 
 

181. Parmelia belongs to :

 
 
 
 

182. Germination of the seed of Pinus is :

 
 
 
 

183. Synzoospore is produced in:

 
 
 
 

184. LSD is:

 
 
 
 

185. Most common type of conjugation in Spirogyra is :

 
 
 
 

186. Genetic material of TMV is:

 
 
 
 

187. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

189. Who named prion?

 
 
 
 

190. The alga, Spirogyra are found in :

 
 
 
 

191. The ferns are usually found:

 
 
 
 

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

 
 
 
 

193. What is mycorrhiza?

 
 
 
 

194. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

196. Protistan algae obtain their food as:

 
 
 
 

197. Pythium debaryanum is the causative agent of:

 
 
 
 

198. White rust of crucifers is caused by:

 
 
 
 

199. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

202. Late blight of potato is caused by :

 
 
 
 

203.

204. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

206. Botulism is a:

 
 
 
 

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

 
 
 
 

208. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

212. In Funaria :

 
 
 
 

213. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

215. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

218. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

220. Lichens are pioneers of vegetation in a :

 
 
 
 

221. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

224. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

228. 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:

 
 
 
 

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

 
 
 
 

230. The largest known bacterium is:

 
 
 
 

231. Cycas is :

 
 
 
 

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

 
 
 
 

233. Mycoplasma was discovered by:

 
 
 
 

234. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

237. Spores of which plants have chloroplast:

 
 
 
 

238. Etiology includes the study of :

 
 
 
 

239. Aflatoxin is produced as a product in :

 
 
 
 

240. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

242. Black rust of wheat is caused by:

 
 
 
 

243. Fern prothallus is:

 
 
 
 

244.

245. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

247. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. The fungi are mostly:

 
 
 
 

256. Mycoplasma are:

 
 
 
 

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

 
 
 
 

258. The sporophyte of Riccia is :

 
 
 
 

259. The leaves of Funaria are :

 
 
 
 

260. Mycoplasmas are not viruses in nature because:

 
 
 
 

261. The middle sterile part of capsule is called:

 
 
 
 

262. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

264. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

269. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. Yeast belongs to class:

 
 
 
 

273. The genetic material of poxvirus is:

 
 
 
 

274. Club moss is the common name of :

 
 
 
 

275. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

278. Longest known virus is:

 
 
 
 

279. The central part of Funaria axis is :

 
 
 
 

280. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. The archegonia in Selaginella develop on:

 
 
 
 

285. Transfusion tissue is present in the leaflet of:

 
 
 
 

286. Rhizoids of Riccia are :

 
 
 
 

287. Soil fertility is lost by the activities of:

 
 
 
 

288. Sexual reproduction of lichen is due to :

 
 
 
 

289. Which have the largest antherozoid?

 
 
 
 

290. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

291. Vascular cryptogams is the term used for:

 
 
 
 

292. Nannandria are:

 
 
 
 

293. The prothallus of fern is:

 
 
 
 

294. The mycelium of Rhizopus is:

 
 
 
 

295. 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:

 
 
 
 

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

 
 
 
 

297. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

300. Sleeping sickness disease in man is caused by:

 
 
 
 

301. Some biologists have used the term Mycetozoa for:

 
 
 
 

302. Fern phloem lacks:

 
 
 
 

303. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

306. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

308. Sexual reproduction in Rhizopus is by:

 
 
 
 

309. Which one of the following is a monocot?

 
 
 
 

310. Embryo formation is not known in :

 
 
 
 

311. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

314.

 

315. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

321. Fertility of the soil is increased by:

 
 
 
 

322. Vascular cryptogam is the term used for :

 
 
 
 

323. Rhizophore of Selaginella is:

 
 
 
 

324. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

327. Pteridophyta are also called:

 
 
 
 

328. Which is a redwood tree?

 
 
 
 

329. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

331. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

334. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

337. Red rot of sugarcane is caused by:

 
 
 
 

338. In tracheophyta:

 
 
 
 

339. Viroids have:

 
 
 
 

340. The most primitive vascular plants is:

 
 
 
 

341. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

344. Standard size of a herbarium sheet is:

 
 
 
 

345. Which among the following is a shrub?

 
 
 
 

346. Winged seeds are found in :

 
 
 
 

347. Which of the following are absent in Mycoplasma?

 
 
 
 

348. In Cycas:

 
 
 
 

349. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Most resistant spore in bacteria is:

 
 
 
 

353. Club moss and Peat moss belong to:

 
 
 
 

354. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

358. Psilotum is:

 
 
 
 

359. Which is the correct statement about Selaginella?

 
 
 
 

360. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

362. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

364. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

366. In moss, sporogenous tissue arises from:

 
 
 
 

367. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

369. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

373. Common phycobiont in a lichen is :

 
 
 
 

374. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

379. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

384. Pinus microsporophyll bears:

 
 
 
 

385. Which causes red tide?

 
 
 
 

386. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

389. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

393. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

394. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

398. Redness of red sea is due to :

 
 
 
 

399. The roots of Cycas are :

 
 
 
 

400. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

401. Funaria can be differentiated from Cycas :

 
 
 
 

402. The antibiotic is obtained from:

 
 
 
 

403. Bacteria are considered to be plants because they:

 
 
 
 

404. 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:

 
 
 
 

405. The fungi are usually:

 
 
 
 

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

 
 
 
 

407. The first to isolate a plant virus was:

 
 
 
 

408. Vascular tissue is found in :

 
 
 
 

409. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

412. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

415. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

416. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

418. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

420. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

421. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Facultative parasite is:

 
 
 
 

425. Total parasites belong to:

 
 
 
 

426. The rhizoids of Funaria are :

 
 
 
 

427. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

429. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

431. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

433. Quarantine regulations are concerned with:

 
 
 
 

434. Heterocysts are found in :

 
 
 
 

435. 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?

 
 
 
 

436. Bryophyta have been placed in cryptogams because:

 
 
 
 

437. The fern plant is:

 
 
 
 

438. Enzymes are absent in:

 
 
 
 

439. Lichens show :

 
 
 
 

440. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

444. Circular DNA is seen in:

 
 
 
 

445. Bacteria differ from viruses in being sensitive to:

 
 
 
 

446. The Rhizopus is:

 
 
 
 

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

 
 
 
 

448. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. Cycas is similar to a mustard plant :

 
 
 
 

452. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

455. Protists which are diploid reproduce sexually by:

 
 
 
 

456. Pollination in Cycas takes place by :

 
 
 
 

457. What is absent in Deuteromycetes?

 
 
 
 

458. The similarity between cyanobacteria and bacteria:

 
 
 
 

459. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

461. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

463. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. What are plasmids?

 
 
 
 

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

 
 
 
 

468. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

470. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

473. Which class of Protozoa includes all parasitic forms?

 
 
 
 

474. Economic importance of bacteria lies in their being:

 
 
 
 

475. Spermatophyta are characterized by producing:

 
 
 
 

476. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

478. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. Select the wrong statement:

 
 
 
 

483. Select the wrong statement:

 
 
 
 

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

 
 
 
 

485. Generic name of mango is:

 
 
 
 

486. Each chloroplast in Spirogyra bears :

 
 
 
 

487. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

489. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

491. Photosynthetic bacteria have:

 
 
 
 

492. To which class Riccia belongs :

 
 
 
 

493. Lichens are ecologically important because :

 
 
 
 

494. The young leaves of Cycas have :

 
 
 
 

495. The leaf of Cycas shows:

 
 
 
 

496. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

499. The two conjugating gametangia of Rhizopus are:

 
 
 
 

500. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

502. The chloroplast in Ulothrix is :

 
 
 
 

503. Placenta in fern is:

 
 
 
 

504. Water-net is the name of:

 
 
 
 

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

 
 
 
 

506. NBG of Lucknow is now named as:

 
 
 
 

507. Which of the following statements is not correct?

 
 
 
 

508. Typhoid in man is caused by:

 
 
 
 

509. Reproduction in Cycas takes place by :

 
 
 
 

510. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

512. Smut of maize is caused by :

 
 
 
 

513. What is streptomycin?

 
 
 
 

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

 
 
 
 

515. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

517. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

523. The chromosomal number in:

 
 
 
 

524. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

526. Black rust of wheat is caused by:

 
 
 
 

527. In Cycas microsporangia are borne on:

 
 
 
 

528. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

530. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

532. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

535. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

539. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

541. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

543. The coralloid roots are :

 
 
 
 

544. The chloroplast of Chlamydomonas are:

 
 
 
 

545. Which is an edible fungus?

 
 
 
 

546. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

548. Botulinum toxin effects:

 
 
 
 

549. Most primitive kind of flower is represented by:

 
 
 
 

550. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

552. Which part of Riccia bears nurse cells?

 
 
 
 

553. Bacteria growing on synthetic medium are called:

 
 
 
 

554. Liverworts are included in :

 
 
 
 

555. Seeds are characteristically found in :

 
 
 
 

556. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

558. Chief constituents of bordeaux mixture are :

 
 
 
 

559. Which statement is wrong in regard to bacteria?

 
 
 
 

560. Pythium debaryanum is the causative agent of:

 
 
 
 

561. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

563. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

569. 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?

 
 
 
 

570. The source of litmus is :

 
 
 
 

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

 
 
 
 

572. Halophiles are the bacteria that require for growth:

 
 
 
 

573. Nitrifying bacteria play an important role by converting:

 
 
 
 

574. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

577. How a fern differs from a moss?

 
 
 
 

578. In angiosperms double fertilization represents:

 
 
 
 

579. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

581. A gill of Agaricus:

 
 
 
 

582. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

584. The most important property of yeast is:

 
 
 
 

585. Cocci types of bacteria are:

 
 
 
 

586. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

588. The chief characteristic of bryophyta is that :

 
 
 
 

589. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

592. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

594. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

596. The seedless plants which possess vascular tissues are:

 
 
 
 

597. Agar-agar is obtained from:

 
 
 
 

598. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

600. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

602. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

604. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

606. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

608. Pollination in Pinus is :

 
 
 
 

609. Cyathia is characterized by:

 
 
 
 

610. The photosynthetic protists are:

 
 
 
 

611. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

612. Pasteur is famous for his:

 
 
 
 

613. Black rust of wheat is caused by:

 
 
 
 

614. Which of the following is true for viruses?

 
 
 
 

615. Viruses are commonly transmitted in plants through:

 
 
 
 

616. The megasporangium of Selaginella is:

 
 
 
 

617. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

621. The order generally ends with:

 
 
 
 

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

 
 
 
 

623. Metulae are found in:

 
 
 
 

624. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

626. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

628. Detailed study of bacteriophage was made by:

 
 
 
 

629. To which country Antony van Leeuwenhoek belong?

 
 
 
 

630. The fungi that grow on wood are called:

 
 
 
 

631. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

633. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. Interferon is a:

 
 
 
 

637. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

639. Ergot of rye is caused by:

 
 
 
 

640. Water bloom is generally caused by :

 
 
 
 

641. Cycas is different from mango in :

 
 
 
 

642. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

644. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

646. Cleavage polyembryony is found in :

 
 
 
 

647. Leprosy is caused by:

 
 
 
 

648. Rhizopus and yeast are usually:

 
 
 
 

649. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

652. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

654. Proembryo in Pinus is :

 
 
 
 

655. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

657. Roots are absent in :

 
 
 
 

658. The plants of Funaria grow :

 
 
 
 

659. Leaf spot of groundnut is caused by :

 
 
 
 

660. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

661. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

663. The sporangiophores in Rhizopus are:

 
 
 
 

664. Zoogametes are not found in:

 
 
 
 

665. Wine turns sour because of:

 
 
 
 

666. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

668. Heterotrichous habit means :

 
 
 
 

669. Azolla growing in paddy fields helps in:

 
 
 
 

670. In moss, stomata are found:

 
 
 
 

671. Ovules are not found enclosed in ovary in :

 
 
 
 

672. Protozoans are considered animals because these are:

 
 
 
 

673. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

674. In Gymnocarpeae the fruiting body is :

 
 
 
 

675. Which of the following shows heterotrichous habit?

 
 
 
 

676. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

678. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

683. Spirogyra represents the :

 
 
 
 

684. Rice, pea, potato are :

 
 
 
 

685. The development of Selaginella embryo is:

 
 
 
 

686. Spirogyra differs from moss protonema in having :

 
 
 
 

687. In dinoflagellates, the two flagella are:

 
 
 
 

688. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

691. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

694. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

696. Most appropriate word for protozoans is:

 
 
 
 

697. The disease apple scab is caused by:

 
 
 
 

698. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

700. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

703. Choose the correct statement about Spirogyra:

 
 
 
 

704. Lichen show :

 
 
 
 

705. 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:

 
 
 
 

706. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

708. Ulothrix produces :

 
 
 
 

709. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

713. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

724. Mostly type of zygospore in Ulothrix is:

 
 
 
 

725. Virion refers to:

 
 
 
 

726. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

728. Absorptive nutrition is:

 
 
 
 

729. Ergot is obtained from :

 
 
 
 

730. The largest alga is:

 
 
 
 

731. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

732. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

734. The megaspore of Selaginella on germination produces:

 
 
 
 

735. Lichens reproduce by :

 
 
 
 

736. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

741. Which of the following have algal zone?

 
 
 
 

742. 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:

 
 
 
 

743. Which is a tautonym?

 
 
 
 

744. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

746. The stele of Dryopteris is a:

 
 
 
 

747. Kuru, a human disease is caused by:

 
 
 
 

748. The sporangia of Selaginella are attached:

 
 
 
 

749. Lichens form the first community in

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. Maximum diversity of life forms occurs in :

 
 
 
 

753. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

755. Why is Cycas called a living fossil?

 
 
 
 

756. Which of the following have a prokaryotic cell?

 
 
 
 

757. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

759. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

762. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

764. All protozoans possess:

 
 
 
 

765. Fruiting body of lichens is :

 
 
 
 

766. The phloem of vascular system of Cycas is :

 
 
 
 

767. Cap cells are found in the filament of:

 
 
 
 

768. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

774. Majority of lichens are :

 
 
 
 

775. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

777. Helotism word is used for the symbiosis between :

 
 
 
 

778. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

782. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

785. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

788. Saccharomyces is used in:

 
 
 
 

789. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. Viruses are considered to be:

 
 
 
 

793. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

798. Number of capsomeres forming capsid of TMV is:

 
 
 
 

799. Endemic plants are characterised by their:

 
 
 
 

800. Cycas is:

 
 
 
 

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

 
 
 
 

802. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

806. An Hfr bacterium is one that contains:

 
 
 
 

807. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

809. Which of the following applies to Selaginella?

 
 
 
 

810. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

812. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

816. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

819. Ovary is absent in:

 
 
 
 

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

 
 
 
 

821. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

825. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

827. Plasmids are:

 
 
 
 

828. Ovary is absent in :

 
 
 
 

829. Which is a fungicide?

 
 
 
 

830. Most of the algae are :

 
 
 
 

831. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

837. Which one of the following statement is wrong?

 
 
 
 

838. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

841. Clostridium can:

 
 
 
 

842. Pinus is:

 
 
 
 

843. Yeast grows more rapidly in:

 
 
 
 

844. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

847. Bryophyta have a special character from other plants:

 
 
 
 

848. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

850. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

852. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

857. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

859. Green plants are classified as :

 
 
 
 

860. Water-borne bacterial diseases are:

 
 
 
 

861. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

863. 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?

 
 
 
 

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