Quiz_Random

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

 
 
 
 

2. Ovary is absent in:

 
 
 
 

3. Mycoplasma is different from bacteria due to:

 
 
 
 

4. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

9. Generic name of mango is:

 
 
 
 

10. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

12. Iodine is obtained from:

 
 
 
 

13. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

15. The gametophyte of fern bears:

 
 
 
 

16. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

20. Fruits are not found in Cycas because:

 
 
 
 

21. Funaria can be differentiated from Cycas :

 
 
 
 

22. Number of capsomeres forming capsid of TMV is:

 
 
 
 

23. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

25. Protozoans are considered animals because these are:

 
 
 
 

26. The coralloid roots are :

 
 
 
 

27. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

29. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. Fruits are not found in:

 
 
 
 

33. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

35. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

36. Pasteur is famous for his:

 
 
 
 

37. The leaf of Cycas shows:

 
 
 
 

38. The spur of Pinus roxburghii has :

 
 
 
 

39. E coli is a:

 
 
 
 

40. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

46. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

52. The root nodules of leguminous plants contain:

 
 
 
 

53. Methanogens belong to:

 
 
 
 

54. Lichens are indicators of :

 
 
 
 

55. Who discovered streptomycin?

 
 
 
 

56. In tracheophyta:

 
 
 
 

57. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Pteridophyta are also called:

 
 
 
 

61. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

63. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

65. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

67. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. The development of sporangium in Selaginella is:

 
 
 
 

71. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

76. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

78. LSD is:

 
 
 
 

79. The flagella of Chlamydomonas are:

 
 
 
 

80. The stele of Dryopteris is a:

 
 
 
 

81. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. First animal pathogenic virus was discovered by:

 
 
 
 

85. Fruits are not found in :

 
 
 
 

86. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

90. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

100. Triple antigen injection or vaccine are for:

 
 
 
 

101. Which bacteria convert nitrate into nitrogen?

 
 
 
 

102. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

104. Ovules are not found enclosed in ovary in :

 
 
 
 

105. Fern plants are:

 
 
 
 

106. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

108. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

110. Leprosy is caused by:

 
 
 
 

111. Cell walls of Gram-positive bacteria contain:

 
 
 
 

112. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

114. Siphonogamy is found in:

 
 
 
 

115. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. Cycas is similar to a mustard plant :

 
 
 
 

119. Liverworts are included in :

 
 
 
 

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

 
 
 
 

121. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

122. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

124. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

127. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

130. Most appropriate word for protozoans is:

 
 
 
 

131. Which of the following is a heterosporous pteridophyte?

 
 
 
 

132. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

134. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

136. Bacteria were first discovered by:

 
 
 
 

137. The middle sterile part of capsule is called:

 
 
 
 

138. In moss, conducting tissue is made up of

 
 
 
 

139. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

142. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

144. In dinoflagellates, the two flagella are:

 
 
 
 

145. Climbers are found in genus:

 
 
 
 

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. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

149. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

151. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

153. Heterotrichous habit means :

 
 
 
 

154. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

156. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

160. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

163. 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?

 
 
 
 

164. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

166. Pinus microsporophyll bears:

 
 
 
 

167. Late blight of potato is caused by :

 
 
 
 

168. What is mycorrhiza?

 
 
 
 

169. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. Winged pollen grains are found in :

 
 
 
 

174. Cyanophage is a virus that attacks:

 
 
 
 

175. What are Cyanobacteria?

 
 
 
 

176. Saccharomyces is used in:

 
 
 
 

177. Water-borne bacterial diseases are:

 
 
 
 

178. The leaves of Funaria are :

 
 
 
 

179. Viruses have:

 
 
 
 

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

 
 
 
 

181. Anoxygenic photosynthesis occurs in:

 
 
 
 

182. Metulae are found in:

 
 
 
 

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

 
 
 
 

184. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

187. The ascus of yeast contains:

 
 
 
 

188. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

190. The chloroplast in Ulothrix is :

 
 
 
 

191. Black rust of wheat is caused by:

 
 
 
 

192. In Pteris, the roots are:

 
 
 
 

193. The prothallus of fern represents the plant:

 
 
 
 

194. Helotism word is used for the symbiosis between :

 
 
 
 

195. Yeast is a source of:

 
 
 
 

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

 
 
 
 

197. Soil fertility is lost by the activities of:

 
 
 
 

198. Lichens are pioneers of vegetation in a :

 
 
 
 

199. Yeast grows more rapidly in:

 
 
 
 

200. Most primitive embryophytes are placed in:

 
 
 
 

201. A gill of Agaricus:

 
 
 
 

202. Who named prion?

 
 
 
 

203. Which of the following statements is not correct?

 
 
 
 

204. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

207. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

211. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

214. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

216. Mycoplasma are sensitive to:

 
 
 
 

217. Diphtheria is caused by:

 
 
 
 

218. Most primitive embryophytes are placed in :

 
 
 
 

219. What is special feature of fern archegonia?

 
 
 
 

220. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Kuru, a human disease is caused by:

 
 
 
 

224. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

227. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

231. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

233. The mode of nutrition of bacteria is usually:

 
 
 
 

234. The smallest unit of classification is:

 
 
 
 

235. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

238. The chief characteristic of class Ascomycetes is:

 
 
 
 

239. Lichens form the first community in

 
 
 
 

240. The alga, Spirogyra are found in :

 
 
 
 

241. Viruses are considered to be:

 
 
 
 

242. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

244. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

245. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

247. In Funaria :

 
 
 
 

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

 
 
 
 

249. Mycoplasmas are not viruses in nature because:

 
 
 
 

250. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

253. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

254. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

256. Which of the following is sago palm?

 
 
 
 

257. Agar-agar is obtained from:

 
 
 
 

258. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

260. Mycoplasma contains:

 
 
 
 

261. The tree fern is:

 
 
 
 

262. Photoautotrophic bacteria have:

 
 
 
 

263. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

269. Desired type of Cycas can be grown by:

 
 
 
 

270. Embryo formation is not known in :

 
 
 
 

271. The central part of Funaria axis is :

 
 
 
 

272. The genetic material of poxvirus is:

 
 
 
 

273. Small epidermal swellings due to infection are called :

 
 
 
 

274. Sometimes the bacterial cell is enclosed in:

 
 
 
 

275. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

277. Pollination drop is:

 
 
 
 

278. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. Pneumonia is caused by:

 
 
 
 

282. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

284. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

287. Which of the following is true for viruses?

 
 
 
 

288. Which one of the following is a monocot?

 
 
 
 

289. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

291. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

294. 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:

 
 
 
 

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

 
 
 
 

296.

297. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

300. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

302. The leaves of Funaria are :

 
 
 
 

303. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

305. All algae have:

 
 
 
 

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

 
 
 
 

307. Absorptive nutrition is:

 
 
 
 

308.

309. Water-net is the name of:

 
 
 
 

310. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

312. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

314. Bacteriophage consists of:

 
 
 
 

315. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

321. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

324. Spirogyra differs from moss protonema in having :

 
 
 
 

325. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

326. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

328. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

330. Etiology includes the study of :

 
 
 
 

331. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

333. Vascular cryptogam is the term used for :

 
 
 
 

334. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

336. The archegonia of Selaginella are differentiated by:

 
 
 
 

337. Rice, pea, potato are :

 
 
 
 

338. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

340. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. Bacteriophages have been used as:

 
 
 
 

344. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

346. Reproduction in Cycas takes place by :

 
 
 
 

347. Aflatoxin is produced by:

 
 
 
 

348. Virus and bacteriophage are made-up of:

 
 
 
 

349. Bacteria growing on synthetic medium are called:

 
 
 
 

350. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

352. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. Which of the following shows heterotrichous habit?

 
 
 
 

358. All archaebacteria lack:

 
 
 
 

359. Cycas is different from mango in :

 
 
 
 

360. Disease resistant plant varieties can be produced by :

 
 
 
 

361. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. Linnaeus is credited with introducing:

 
 
 
 

365. Quarantine regulations are concerned with:

 
 
 
 

366. 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:

 
 
 
 

367. Club moss is the common name of :

 
 
 
 

368. Citrus canker is caused by:

 
 
 
 

369. Meristele of fern is:

 
 
 
 

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

 
 
 
 

371. Bacteria are considered to be plants because they:

 
 
 
 

372. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

374. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

377. The Rhizopus is:

 
 
 
 

378. Which is the correct statement about Selaginella?

 
 
 
 

379. John Hutchinson divided dicots into two divisions:

 
 
 
 

380. Woody climbers are known as :

 
 
 
 

381. Which lichen is called Reindeer moss?

 
 
 
 

382. The mycelium of Rhizopus is:

 
 
 
 

383. Majority of lichens are :

 
 
 
 

384. In a diplontic life cycle:

 
 
 
 

385. Cycas revoluta is widely grown as :

 
 
 
 

386. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

388. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

390. Late blight of potato is caused by:

 
 
 
 

391. Enzymes are absent in:

 
 
 
 

392. Rhizoids of Riccia are :

 
 
 
 

393. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

394. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

397. The fungi that grow on wood are called:

 
 
 
 

398. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

399. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

401. The first to isolate a plant virus was:

 
 
 
 

402. Facultative saprophyte is:

 
 
 
 

403. 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?

 
 
 
 

404. The sexual reproductive organs in Rhizopus are:

 
 
 
 

405. Green plants are classified as :

 
 
 
 

406. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

408. Sexual reproduction in Rhizopus is by:

 
 
 
 

409. Wine turns sour because of:

 
 
 
 

410. The sporangiophores in Rhizopus are:

 
 
 
 

411. Clostridium can:

 
 
 
 

412. The sporangium of fern contains nearly:

 
 
 
 

413. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

415. Water bloom is generally caused by :

 
 
 
 

416. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

419. Why is Cycas called a living fossil?

 
 
 
 

420. Virion refers to:

 
 
 
 

421. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

426. Fern prothallus is:

 
 
 
 

427. The role of meiosis is for:

 
 
 
 

428. Cycas is:

 
 
 
 

429. The Rhizopus gametes are formed in:

 
 
 
 

430. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. The upper region of moss capsule is :

 
 
 
 

438.

 

439. Pollination in Pinus is :

 
 
 
 

440. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

443. Which is an exception to cell theory?

 
 
 
 

444. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

446. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

448. What is streptomycin?

 
 
 
 

449. Cycas plant in appearance resembles :

 
 
 
 

450. Placenta in fern is:

 
 
 
 

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

 
 
 
 

452. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

454. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

456. The fungi used as food are:

 
 
 
 

457. Mycoplasma are:

 
 
 
 

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

 
 
 
 

459. Which have the largest antherozoid?

 
 
 
 

460. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

462. Which of the following is a parasitic algae?

 
 
 
 

463. The sori in Dryopteris are found on:

 
 
 
 

464. The order generally ends with:

 
 
 
 

465. Which is a tautonym?

 
 
 
 

466. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

467. Pinus is:

 
 
 
 

468. Aflatoxin is produced as a product in :

 
 
 
 

469. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

471. Gymnosperms could also be called as:

 
 
 
 

472. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

475. Which organisms are the oldest life forms?

 
 
 
 

476. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

478. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

480. Acetobacter is useful in:

 
 
 
 

481. The largest known bacterium is:

 
 
 
 

482. Usually, bacteria reproduce by:

 
 
 
 

483. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

485. Azolla growing in paddy fields helps in:

 
 
 
 

486. The term stele was given by:

 
 
 
 

487. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

489. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

495. The lichens growing on rocks are called :

 
 
 
 

496. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

499. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

501. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

504. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

506. Pteridophytes are also known as :

 
 
 
 

507. Ovules are not found enclosed in ovary of:

 
 
 
 

508. Which is not true for Escherichia coli?

 
 
 
 

509. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

511. Some biologists have used the term Mycetozoa for:

 
 
 
 

512. Which of the following are absent in Mycoplasma?

 
 
 
 

513. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

520. Smut of maize is caused by :

 
 
 
 

521. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

523. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

525. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. What are plasmids?

 
 
 
 

529. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

531. Which is a fungicide?

 
 
 
 

532. The photosynthetic protists are:

 
 
 
 

533. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

535. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

539. Mycoplasma was discovered by:

 
 
 
 

540. Most of the algae are :

 
 
 
 

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

 
 
 
 

542. Downy mildew disease is caused by :

 
 
 
 

543. The microsporophylls on the cone of Cycas are :

 
 
 
 

544. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

546. Which of the following are included in Tracheophyta?

 
 
 
 

547. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

550. Diploxylic vascular bundles are found in:

 
 
 
 

551. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

553. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

559. Which among the following is a shrub?

 
 
 
 

560. TMV was isolated in crystalline form by:

 
 
 
 

561. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

565. Select the wrong statement:

 
 
 
 

566. In angiosperms double fertilization represents:

 
 
 
 

567. In moss, peristomial teeth are:

 
 
 
 

568. Which is an edible fungus?

 
 
 
 

569. Lichen show :

 
 
 
 

570. The smallest bacterium is:

 
 
 
 

571. Bacteria differ from viruses in being sensitive to:

 
 
 
 

572. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

575. The group algae possesses representatives belonging to kingdom:

 
 
 
 

576. . Tapetum develops in:

 
 
 
 

577. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

578. Standard size of a herbarium sheet is:

 
 
 
 

579. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

580. The lambda phase is a:

 
 
 
 

581. Ovary is absent in :

 
 
 
 

582. The sporangia of Selaginella are attached:

 
 
 
 

583. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

586. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

588. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

590. Which of the following is a monocot?

 
 
 
 

591.

592. The megasporangium of Selaginella is:

 
 
 
 

593. The two conjugating gametangia of Rhizopus are:

 
 
 
 

594. Cryptogams include :

 
 
 
 

595. The disease symptom necrosis refers to :

 
 
 
 

596. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

598. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. Bacteria which are spherical are called:

 
 
 
 

604. Penicillin is obtained from:

 
 
 
 

605. 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:

 
 
 
 

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

 
 
 
 

607. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. Green plants are classified as:

 
 
 
 

611. In Herpes virus DNA is:

 
 
 
 

612. Acellular slime mold is/are:

 
 
 
 

613. Isomorphic type alternation of generation is found in:

 
 
 
 

614. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

616. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

618. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

620. To which country Antony van Leeuwenhoek belong?

 
 
 
 

621. Lichens are ecologically important because :

 
 
 
 

622. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Endemic plants are characterised by their:

 
 
 
 

628. Red rot of sugarcane is caused by :

 
 
 
 

629. The most important property of yeast is:

 
 
 
 

630. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

632. Germination of the seed of Pinus is :

 
 
 
 

633. What is a vector?

 
 
 
 

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

 
 
 
 

635. Zoogametes are not found in:

 
 
 
 

636. An alga which is rich in proteins:

 
 
 
 

637. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

645. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

647. The phloem of vascular system of Cycas is :

 
 
 
 

648. Saccharomyces is well known for:

 
 
 
 

649. Rhizopus belongs to:

 
 
 
 

650. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

654. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

657. All protozoans possess:

 
 
 
 

658. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

660. The teeth of peristome of Funaria are :

 
 
 
 

661. Most primitive group of vascular plants are:

 
 
 
 

662. Simple polyembryony is found in :

 
 
 
 

663. Some diseases caused by bacteria are:

 
 
 
 

664. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

666. Gram stain is used to:

 
 
 
 

667. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

670. What is the role of nitrifying bacteria?

 
 
 
 

671. Mucilaginous canals in Cycas are found in :

 
 
 
 

672. Pythium debaryanum is the causative agent of:

 
 
 
 

673. Ulothrix produces :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

676. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

678. Some bacteria cannot be killed easily because of:

 
 
 
 

679. In Cycas microsporangia are borne on:

 
 
 
 

680. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

682. Viruses are commonly transmitted in plants through:

 
 
 
 

683. The roots of Cycas are :

 
 
 
 

684. Cap cells are found in the filament of:

 
 
 
 

685. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

688. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

691. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

696. Seeds are characteristically found in :

 
 
 
 

697. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

699. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

701. Which of the following does not contain chlorophyll?

 
 
 
 

702. Psilotum is:

 
 
 
 

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

 
 
 
 

704. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

706. Spores of which plants have chloroplast:

 
 
 
 

707. Selaginella differs from Moss in having:

 
 
 
 

708. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

713. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

715. Which of the following have a prokaryotic cell?

 
 
 
 

716. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

721. The tallest moss in the world is :

 
 
 
 

722. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. Vegetative reproduction in Cycas is by means of :

 
 
 
 

726. Interferon is a:

 
 
 
 

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

 
 
 
 

728. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

731. In moss, stomata are found:

 
 
 
 

732. Most common type of conjugation in Spirogyra is :

 
 
 
 

733. The chromosomal number in:

 
 
 
 

734. 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:

 
 
 
 

735. The fungi are usually:

 
 
 
 

736. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

741. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

743. Bryophyta have a special character from other plants:

 
 
 
 

744. Pinus gerardiana is :

 
 
 
 

745. Nannandria are:

 
 
 
 

746. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

748. Who among the following discovered virus?

 
 
 
 

749. Who discovered cyanophages?

 
 
 
 

750. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

756. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

758. Funaria are commonly found :

 
 
 
 

759. Discovery of penicillin was based on:

 
 
 
 

760. Rhizopus and yeast are usually:

 
 
 
 

761. Protists which are diploid reproduce sexually by:

 
 
 
 

762. True sexuality is not found in:

 
 
 
 

763. Lichens show :

 
 
 
 

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

 
 
 
 

765. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

767. Longest known virus is:

 
 
 
 

768. Early blight of potato is caused by:

 
 
 
 

769. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

771. Leaf spot of groundnut is caused by :

 
 
 
 

772. Transfusion tissue is present in the leaflet of:

 
 
 
 

773. 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:

 
 
 
 

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

 
 
 
 

775. Smallpox is caused by:

 
 
 
 

776. The truncated cone of HIV consists of:

 
 
 
 

777. The fungi are mostly:

 
 
 
 

778. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

781. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. The largest alga is:

 
 
 
 

785. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

787. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

789. The vascular bundles of Cycas stem are :

 
 
 
 

790. Enteric bacteria are those bacteria that live:

 
 
 
 

791. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

795. Facultative parasite is:

 
 
 
 

796. Total parasites belong to:

 
 
 
 

797. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

798. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

801. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

806. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

809. In Selaginella, the microsporangia are:

 
 
 
 

810. Select the correct statement: (NEET 2016)

 
 
 
 

811. Funaria is :

 
 
 
 

812. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

816. Chief constituents of bordeaux mixture are :

 
 
 
 

817. Fertility of the soil is increased by:

 
 
 
 

818. Which one of the following statement is wrong?

 
 
 
 

819. Meiosis in Ulothrix takes place:

 
 
 
 

820. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

822. Botulism is a:

 
 
 
 

823. Sporophyte of fern is:

 
 
 
 

824. Spirogyra represents the :

 
 
 
 

825. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

827. The rhizoids of Funaria are :

 
 
 
 

828. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. Coenogamete is found in:

 
 
 
 

834. Funaria is :

 
 
 
 

835. Which is the nuclear material in bacteria?

 
 
 
 

836. The chief characteristic of bryophyta is that :

 
 
 
 

837. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. Which of the following statement is correct?

 
 
 
 

844. 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?

 
 
 
 

845. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

847. Heterospory is the production of:

 
 
 
 

848. Fairy ring is the name given to:

 
 
 
 

849. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

851. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

858. 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:

 
 
 
 

859. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

861. Spermatophyta are characterized by producing:

 
 
 
 

862. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

864. The fern plant is: