Quiz_Random

1. Protists which are diploid reproduce sexually by:

 
 
 
 

2. In dinoflagellates, the two flagella are:

 
 
 
 

3. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

10. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Lichens reproduce by :

 
 
 
 

18. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. The ferns are usually found:

 
 
 
 

23. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

28. Botulism is a:

 
 
 
 

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

 
 
 
 

30. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. The DNA of E coli is:

 
 
 
 

38. Enzymes are absent in:

 
 
 
 

39. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

41. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

43. Most resistant spore in bacteria is:

 
 
 
 

44. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

46. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. The word “sea weeds” is used for:

 
 
 
 

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

 
 
 
 

52. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

57. Bacteriophages have been used as:

 
 
 
 

58. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

60. Parmelia belongs to :

 
 
 
 

61. Green plants are classified as:

 
 
 
 

62. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

64. Discovery of penicillin was based on:

 
 
 
 

65. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

67. Which of the following have algal zone?

 
 
 
 

68. Spermatophyta are characterized by producing:

 
 
 
 

69. Halophiles are the bacteria that require for growth:

 
 
 
 

70. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. Fruits are not found in Cycas because:

 
 
 
 

74. Ergot is obtained from :

 
 
 
 

75. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

77. Cycas plant in appearance resembles :

 
 
 
 

78. Spirogyra differs from moss protonema in having :

 
 
 
 

79. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Which is the correct statement about Selaginella?

 
 
 
 

83. The disease apple scab is caused by:

 
 
 
 

84. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

86. Ulothrix produces :

 
 
 
 

87. Interferon is a:

 
 
 
 

88. Who discovered streptomycin?

 
 
 
 

89. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

93. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

97. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

102. The disease symptom necrosis refers to :

 
 
 
 

103. The megasporangium of Selaginella is:

 
 
 
 

104. Bacteria were first discovered by:

 
 
 
 

105. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

107. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

109. Soil fertility is lost by the activities of:

 
 
 
 

110. Chemosynthetic bacteria are:

 
 
 
 

111. Placenta in fern is:

 
 
 
 

112. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

114. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

116. Leaf spot of groundnut is caused by :

 
 
 
 

117. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

119. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

121. What is a vector?

 
 
 
 

122. Lichens form the first community in

 
 
 
 

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

 
 
 
 

124. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128.

 

129. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

132. The lambda phase is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

135. Fern plants are:

 
 
 
 

136. Methanogens belong to:

 
 
 
 

137. What are Cyanobacteria?

 
 
 
 

138. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

139. 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:

 
 
 
 

140. The term stele was given by:

 
 
 
 

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

 
 
 
 

142. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

144. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

147. Selaginella differs from Moss in having:

 
 
 
 

148. Protistan algae obtain their food as:

 
 
 
 

149. Fern phloem lacks:

 
 
 
 

150. The archegonia in Selaginella develop on:

 
 
 
 

151. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

153. Fruits are not found in :

 
 
 
 

154. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

156. The order generally ends with:

 
 
 
 

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

 
 
 
 

158. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

160. 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?

 
 
 
 

161. The chromosomal number in:

 
 
 
 

162. Psilotum is:

 
 
 
 

163. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

165. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

166. Heterotrichous habit means :

 
 
 
 

167. The mode of nutrition of bacteria is usually:

 
 
 
 

168. The zygospore in Rhizopus on germination forms:

 
 
 
 

169. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

175. Sexual reproduction in Rhizopus is by:

 
 
 
 

176. In moss, peristomial teeth are:

 
 
 
 

177. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

179. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

181. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

183. Which is a redwood tree?

 
 
 
 

184. Vascular cryptogam is the term used for :

 
 
 
 

185. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. The sexual reproductive organs in Rhizopus are:

 
 
 
 

190. The alga, Spirogyra are found in :

 
 
 
 

191. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

193. Bacteria which are spherical are called:

 
 
 
 

194. Banana bunchy top is caused by :

 
 
 
 

195. Which of the following are included in Tracheophyta?

 
 
 
 

196. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

199. Antibiotic has been extracted from :

 
 
 
 

200. The roots of Cycas are :

 
 
 
 

201. Iodine is obtained from:

 
 
 
 

202. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

204. Lichens are indicators of :

 
 
 
 

205. Cycas is :

 
 
 
 

206. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

208. The Rhizopus gametes are formed in:

 
 
 
 

209. The fungi used as food are:

 
 
 
 

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

 
 
 
 

211. The rhizoids of Funaria are :

 
 
 
 

212. Vascular cryptogams is the term used for:

 
 
 
 

213. Redness of red sea is due to :

 
 
 
 

214. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

217. Viruses have:

 
 
 
 

218. Which among the following is a shrub?

 
 
 
 

219. The spur of Pinus roxburghii has :

 
 
 
 

220. Water bloom is generally caused by :

 
 
 
 

221. Which of the following is a heterosporous pteridophyte?

 
 
 
 

222. Yeast belongs to class:

 
 
 
 

223. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

225. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

227. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

229. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

234. Penicillin is obtained from:

 
 
 
 

235. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

236. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

238. The Rhizopus is:

 
 
 
 

239. Photoautotrophic bacteria have:

 
 
 
 

240. A gill of Agaricus:

 
 
 
 

241. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

243. Facultative parasite is:

 
 
 
 

244. Cocci types of bacteria are:

 
 
 
 

245. Which is the nuclear material in bacteria?

 
 
 
 

246. Roots are absent in :

 
 
 
 

247. Red rot of sugarcane is caused by :

 
 
 
 

248. Green plants are classified as :

 
 
 
 

249. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

251. Bacteria growing on synthetic medium are called:

 
 
 
 

252. Photosynthetic bacteria have:

 
 
 
 

253. Agar-agar is obtained from:

 
 
 
 

254. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

256. Pollination in Pinus is :

 
 
 
 

257. Detailed study of bacteriophage was made by:

 
 
 
 

258. 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:

 
 
 
 

259. Nitrogen-fixing bacteria may be located:

 
 
 
 

260. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

262. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

265. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

267. Leprosy is caused by:

 
 
 
 

268. All protozoans possess:

 
 
 
 

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

 
 
 
 

270. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

272. The gametophyte of fern is as:

 
 
 
 

273. Cyanophage is a virus that attacks:

 
 
 
 

274. Saccharomyces ludwigii ascus produces:

 
 
 
 

275. The largest alga is:

 
 
 
 

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

 
 
 
 

277. An alga which is rich in proteins:

 
 
 
 

278. Sexual reproduction of lichen is due to :

 
 
 
 

279. Clostridium can:

 
 
 
 

280. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

285. Amoeba is a member of the phylum:

 
 
 
 

286. Longest known virus is:

 
 
 
 

287. Metulae are found in:

 
 
 
 

288. Azolla growing in paddy fields helps in:

 
 
 
 

289. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

290. Which causes red tide?

 
 
 
 

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

 
 
 
 

292. Which of the following have a prokaryotic cell?

 
 
 
 

293. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

296. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

298. Which bacteria convert nitrate into nitrogen?

 
 
 
 

299. Ovary is absent in :

 
 
 
 

300. Gram stain is used to:

 
 
 
 

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

 
 
 
 

302. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

305. Linnaeus is credited with introducing:

 
 
 
 

306. An Hfr bacterium is one that contains:

 
 
 
 

307. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

309. Embryophyta includes :

 
 
 
 

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

 
 
 
 

311. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

314. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

317. Fern prothallus is:

 
 
 
 

318. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

320. Chemosynthetic bacteria are:

 
 
 
 

321. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

323. In moss, sporogenous tissue arises from:

 
 
 
 

324. Sporophyte of Funaria is :

 
 
 
 

325. The archegonia of Selaginella are differentiated by:

 
 
 
 

326. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

327. Which is an exception to cell theory?

 
 
 
 

328. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. One of the distinctive feature of Spirogyra is :

 
 
 
 

336. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

338. Cycas is different from mango in :

 
 
 
 

339. Who named prion?

 
 
 
 

340. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

342. Viroids have:

 
 
 
 

343. Isomorphic type alternation of generation is found in:

 
 
 
 

344. The sporophyte of Riccia is represented by :

 
 
 
 

345. Etiology includes the study of :

 
 
 
 

346. Heterospory is the production of:

 
 
 
 

347. Ovules are not found enclosed in ovary in :

 
 
 
 

348. The megaspore of Selaginella on germination produces:

 
 
 
 

349. Acetobacter is useful in:

 
 
 
 

350. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

353. The stele of Dryopteris is a:

 
 
 
 

354. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

356. 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:

 
 
 
 

357. In a diplontic life cycle:

 
 
 
 

358. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

363. The plants of Funaria grow :

 
 
 
 

364. Who among the following discovered virus?

 
 
 
 

365. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

367. The ascus of yeast contains:

 
 
 
 

368. Tautonyms are illegitimate in:

 
 
 
 

369. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

373. The source of litmus is :

 
 
 
 

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

 
 
 
 

375. The development of sporangium in Selaginella is:

 
 
 
 

376. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

378. Reproduction in Cycas takes place by :

 
 
 
 

379. Mixed cropping helps :

 
 
 
 

380. Cyathia is characterized by:

 
 
 
 

381. How a fern differs from a moss?

 
 
 
 

382. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

384. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

387. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

388. Streptomycin is obtained from:

 
 
 
 

389. The chief characteristic of bryophyta is that :

 
 
 
 

390. Heterosporous pteridophytes always form:

 
 
 
 

391. Small epidermal swellings due to infection are called :

 
 
 
 

392. Siphonogamy is found in:

 
 
 
 

393. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

397. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

399. Which class of Protozoa includes all parasitic forms?

 
 
 
 

400. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

402. Polystelic condition is found in:

 
 
 
 

403. The tree fern is:

 
 
 
 

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

 
 
 
 

405. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

407. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

409. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

411. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

413. Pollination in Cycas takes place by :

 
 
 
 

414. Iodine is obtained from :

 
 
 
 

415. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

419. Virion refers to:

 
 
 
 

420. The sporangia of Selaginella are attached:

 
 
 
 

421. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

423. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

425. Water-net is the name of:

 
 
 
 

426. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

430. Oswald Tippo’s classification was based on :

 
 
 
 

431. The fungi that grow on wood are called:

 
 
 
 

432. True sexuality is not found in:

 
 
 
 

433. Which of the following is a monocot?

 
 
 
 

434. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

438. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

440. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

444. Which one of the following is a monocot?

 
 
 
 

445. Cycas is similar to a mustard plant :

 
 
 
 

446. Desired type of Cycas can be grown by:

 
 
 
 

447. 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:

 
 
 
 

448. Indusium in Dryopteris is:

 
 
 
 

449. To which country Antony van Leeuwenhoek belong?

 
 
 
 

450. In Cycas the fertilization is:

 
 
 
 

451. Protozoans are considered animals because these are:

 
 
 
 

452. 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:

 
 
 
 

453. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

455. The tallest moss in the world is :

 
 
 
 

456. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

463. Acellular slime mold is/are:

 
 
 
 

464. Select the wrong statement:

 
 
 
 

465. Select the correct statement: (NEET 2016)

 
 
 
 

466. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

468. Funaria is :

 
 
 
 

469. Spores of which plants have chloroplast:

 
 
 
 

470. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. The prothallus of fern represents the plant:

 
 
 
 

475. Bacteria are considered to be plants because they:

 
 
 
 

476. In moss, sporophyte is formed on:

 
 
 
 

477. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

479. Which of the following is sago palm?

 
 
 
 

480. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

483. In Cycas:

 
 
 
 

484. Which is a tautonym?

 
 
 
 

485. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. Rhizoids of Riccia are :

 
 
 
 

489. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

491. Viruses are commonly transmitted in plants through:

 
 
 
 

492. Yeast is a source of:

 
 
 
 

493. Special feature of pollen grains of Pinus is :

 
 
 
 

494. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

496. Zoogametes are not found in:

 
 
 
 

497. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

499. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

501. LSD is:

 
 
 
 

502. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

503. Lichens are the indicator of pollution :

 
 
 
 

504. Bacteria are placed under:

 
 
 
 

505. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

507. What is streptomycin?

 
 
 
 

508. Smallpox is caused by:

 
 
 
 

509. Which part of Riccia bears nurse cells?

 
 
 
 

510. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514.

515. The leaves of Funaria are :

 
 
 
 

516. Majority of lichens are :

 
 
 
 

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

 
 
 
 

518. Nannandria are:

 
 
 
 

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

 
 
 
 

520. What are plasmids?

 
 
 
 

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

 
 
 
 

522. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. Most of the algae are :

 
 
 
 

529. Asexual reproductive body of Volvox is called:

 
 
 
 

530. In tracheophyta:

 
 
 
 

531. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

533. Which of the following is true for viruses?

 
 
 
 

534. Pythium debaryanum is the causative agent of:

 
 
 
 

535. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

538. In moss, calyptra is formed from:

 
 
 
 

539. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

541. Absorptive nutrition is:

 
 
 
 

542. Infective part of virus was discovered by:

 
 
 
 

543. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

545. Embryophyta includes:

 
 
 
 

546. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

548. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

550. The gametophyte produced by apospory is :

 
 
 
 

551. Plasmids are:

 
 
 
 

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

 
 
 
 

553. Broad spectrum antibiotic is, which:

 
 
 
 

554. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

558. Circular DNA is seen in:

 
 
 
 

559. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

561. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

564. The most primitive vascular plants is:

 
 
 
 

565. Virus and bacteriophage are made-up of:

 
 
 
 

566. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

568. In Funaria :

 
 
 
 

569. Which of the following statements is not correct?

 
 
 
 

570. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

572. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

574. Most primitive embryophytes are placed in:

 
 
 
 

575. Ergot of rye is caused by:

 
 
 
 

576. The nucleus of bacteria is:

 
 
 
 

577. The fungi are usually:

 
 
 
 

578. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

581. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

583. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

585.

586. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

588. Cleavage polyembryony is found in :

 
 
 
 

589. Black rust of wheat is caused by:

 
 
 
 

590. Among the algae kelps are :

 
 
 
 

591. Early blight of potato is caused by:

 
 
 
 

592. The coralloid roots are :

 
 
 
 

593. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

595. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

598. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

603. How is moss different from fern?

 
 
 
 

604. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

606. Centric discoid form of diatom is:

 
 
 
 

607. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

609. Club moss is the common name of :

 
 
 
 

610. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. The young leaves of Cycas have :

 
 
 
 

617. Azolla and Salvinia both are:

 
 
 
 

618. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

621. Which condition is found in Cycas?

 
 
 
 

622. Usually, bacteria reproduce by:

 
 
 
 

623. Climbers are found in genus:

 
 
 
 

624. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

626. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

629. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

635. Endemic plants are characterised by their:

 
 
 
 

636. The fern plant is:

 
 
 
 

637. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

640. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

642. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

644. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

646. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

648. Which of the following are included in Tracheophyta?

 
 
 
 

649. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

654. The sporangium of fern contains nearly:

 
 
 
 

655. Number of capsomeres forming capsid of TMV is:

 
 
 
 

656. The teeth of peristome of Funaria are :

 
 
 
 

657. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

659. Which fixes atmospheric nitrogen?

 
 
 
 

660. The chief characteristic of class Ascomycetes is:

 
 
 
 

661. Which is a fungicide?

 
 
 
 

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

 
 
 
 

663. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

665. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

667. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

669. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

671. All algae have:

 
 
 
 

672. Black rust of wheat is caused by:

 
 
 
 

673. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

675. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

679. In Pteris, the archegonia are present:

 
 
 
 

680. What is absent in Deuteromycetes?

 
 
 
 

681. Which of the following statement is correct?

 
 
 
 

682. Mycoplasma are sensitive to:

 
 
 
 

683. Little leaf disease of Brinjal is caused by:

 
 
 
 

684. Gametophyte is the main plant body in :

 
 
 
 

685. Penicillin was discovered by:

 
 
 
 

686. Typhoid in man is caused by:

 
 
 
 

687. 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?

 
 
 
 

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

 
 
 
 

689. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

692. NBG of Lucknow is now named as:

 
 
 
 

693. Cryptogams include :

 
 
 
 

694. Most primitive embryophytes are placed in :

 
 
 
 

695. 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:

 
 
 
 

696. The chloroplast of Chlamydomonas are:

 
 
 
 

697. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

700. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

703. Late blight of potato is caused by:

 
 
 
 

704. Which of the following is true for Selaginella?

 
 
 
 

705. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

708. Liverworts are included in :

 
 
 
 

709. Which have the largest antherozoid?

 
 
 
 

710. Most primitive group of vascular plants are:

 
 
 
 

711. Oswald Tippo’s classification is:

 
 
 
 

712. Anoxygenic photosynthesis occurs in:

 
 
 
 

713. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

716. Most of the lichens are composed of :

 
 
 
 

717. Kuru, a human disease is caused by:

 
 
 
 

718. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

720. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

722. The phloem of vascular system of Cycas is :

 
 
 
 

723. Black rust of wheat is caused by:

 
 
 
 

724. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

726. The largest known bacterium is:

 
 
 
 

727. The central part of Funaria axis is :

 
 
 
 

728. Meiosis in Ulothrix takes place:

 
 
 
 

729. Reserve food in Euglena is:

 
 
 
 

730. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

732. Mycoplasmas are not viruses in nature because:

 
 
 
 

733. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

736. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

738. Pasteur is famous for his:

 
 
 
 

739. Funaria is a Bryophyta because :

 
 
 
 

740. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

741. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

743. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

745. Seeds are characteristically found in:

 
 
 
 

746. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

748. 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:

 
 
 
 

749. Quarantine regulations are concerned with:

 
 
 
 

750. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

756. Pteridophyta are also called:

 
 
 
 

757. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

762. The first to isolate a plant virus was:

 
 
 
 

763. Pinus gerardiana is :

 
 
 
 

764. Rhizophore of Selaginella is:

 
 
 
 

765. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. Mostly type of zygospore in Ulothrix is:

 
 
 
 

770. Fruiting body of lichens is :

 
 
 
 

771. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

773. Which of the following are absent in Mycoplasma?

 
 
 
 

774. Chief constituents of bordeaux mixture are :

 
 
 
 

775. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

778. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

779. The genetic material of poxvirus is:

 
 
 
 

780. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

782.

783. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

786. The male gametes of Pinus are :

 
 
 
 

787. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

791. The group algae possesses representatives belonging to kingdom:

 
 
 
 

792. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

794. Heterocysts are found in :

 
 
 
 

795. Most common type of conjugation in Spirogyra is :

 
 
 
 

796. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

798. Mycoplasma contains:

 
 
 
 

799. Meristele of fern is:

 
 
 
 

800. Fern prothallus produces:

 
 
 
 

801. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. First animal pathogenic virus was discovered by:

 
 
 
 

805. Mycoplasma are:

 
 
 
 

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

 
 
 
 

807. Synzoospore is produced in:

 
 
 
 

808. Cycas is:

 
 
 
 

809. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

812. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. Diploxylic vascular bundles are found in:

 
 
 
 

816. In Cycas microsporangia are borne on:

 
 
 
 

817. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

821. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

823. The lichens growing on rocks are called :

 
 
 
 

824. Rhizopus and yeast are usually:

 
 
 
 

825. In moss, conducting tissue is made up of

 
 
 
 

826. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

827. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

829. Ovary is absent in:

 
 
 
 

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

 
 
 
 

831. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

833. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

836. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

838. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

839. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

845. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

847. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

852. Bentham and Hooker placed gymnosperms:

 
 
 
 

853. Late blight of potato is caused by :

 
 
 
 

854. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

857. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

860. Select the wrong statement:

 
 
 
 

861. Which of the following shows heterotrichous habit?

 
 
 
 

862. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

864. Pinus is: