Quiz_Random

1. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

5. Cycas is:

 
 
 
 

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

 
 
 
 

7. Select the wrong statement:

 
 
 
 

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

 
 
 
 

9. Bryophyta have been placed in cryptogams because:

 
 
 
 

10. In moss, sporogenous tissue arises from:

 
 
 
 

11. Heterospory is the production of:

 
 
 
 

12. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

13. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

15. Penicillin was discovered by:

 
 
 
 

16. Club moss and Peat moss belong to:

 
 
 
 

17. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Which among the following is a shrub?

 
 
 
 

23. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

25. Spermatophyta are characterized by producing:

 
 
 
 

26. Green plants are classified as:

 
 
 
 

27. Which is a fungicide?

 
 
 
 

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

 
 
 
 

29. Halophiles are the bacteria that require for growth:

 
 
 
 

30. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

32. Mycoplasma contains:

 
 
 
 

33. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

45. Which is a gametophytic tissue?

 
 
 
 

46. The Rhizopus is:

 
 
 
 

47. Cyanophage is a virus that attacks:

 
 
 
 

48. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. The young leaves of Cycas have :

 
 
 
 

53. LSD is:

 
 
 
 

54. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

56. In Gymnocarpeae the fruiting body is :

 
 
 
 

57. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Most resistant spore in bacteria is:

 
 
 
 

61. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. In moss, calyptra is formed from:

 
 
 
 

65. True sexuality is not found in:

 
 
 
 

66. The two conjugating gametangia of Rhizopus are:

 
 
 
 

67. One of the distinctive feature of Spirogyra is :

 
 
 
 

68. Ectocarpus produces:

 
 
 
 

69. Bacteria which are spherical are called:

 
 
 
 

70. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

76. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

78. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

81. The most primitive vascular plants is:

 
 
 
 

82. Fruits are not found in :

 
 
 
 

83. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

85. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

87. Aflatoxin is produced by:

 
 
 
 

88. Antibiotic has been extracted from :

 
 
 
 

89. What are Cyanobacteria?

 
 
 
 

90. Amoeba is a member of the phylum:

 
 
 
 

91. Viroids have:

 
 
 
 

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

 
 
 
 

93. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. Total parasites belong to:

 
 
 
 

97. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

99. Select the wrong statement:

 
 
 
 

100. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

102. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

104. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. The fern plant is:

 
 
 
 

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

 
 
 
 

109. Discovery of penicillin was based on:

 
 
 
 

110. The largest alga is:

 
 
 
 

111. E coli is a:

 
 
 
 

112. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

114. Which condition is found in Cycas?

 
 
 
 

115. Fruits are not found in Cycas because:

 
 
 
 

116. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. Ulothrix produces :

 
 
 
 

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

 
 
 
 

121. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

124. Methanogens belong to:

 
 
 
 

125. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

130. Who among the following discovered virus?

 
 
 
 

131. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

133. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

135. Winged seeds are found in :

 
 
 
 

136. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

138. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

139. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

142. In angiosperms double fertilization represents:

 
 
 
 

143. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

147. The group algae possesses representatives belonging to kingdom:

 
 
 
 

148. Which is not true for Escherichia coli?

 
 
 
 

149. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

151. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

156. Centric discoid form of diatom is:

 
 
 
 

157. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

159. The leaves of Funaria are :

 
 
 
 

160. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

162. Pasteur is famous for his:

 
 
 
 

163. Mycoplasma is different from bacteria due to:

 
 
 
 

164. The central part of Funaria axis is :

 
 
 
 

165. Generic name of mango is:

 
 
 
 

166. Metulae are found in:

 
 
 
 

167. Small epidermal swellings due to infection are called :

 
 
 
 

168. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

172. Pollination in Cycas takes place by :

 
 
 
 

173. Saccharomyces is well known for:

 
 
 
 

174. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

176. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

178. The genetic material of poxvirus is:

 
 
 
 

179. The roots of Cycas are :

 
 
 
 

180. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

184. Where does meiosis occur in yeast?

 
 
 
 

185.

 

186. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

189. The sporophyte of Riccia is represented by :

 
 
 
 

190. 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:

 
 
 
 

191. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

193. Male gametes in Dryopteris are:

 
 
 
 

194. Smallpox is caused by:

 
 
 
 

195. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

197. Longest known virus is:

 
 
 
 

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

 
 
 
 

199. Most primitive kind of flower is represented by:

 
 
 
 

200. Mycoplasma are:

 
 
 
 

201. Parmelia belongs to :

 
 
 
 

202. Protists which are diploid reproduce sexually by:

 
 
 
 

203. In Selaginella, the microsporangia are:

 
 
 
 

204. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

206. Fertility of the soil is increased by:

 
 
 
 

207. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

209. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

210. Anoxygenic photosynthesis occurs in:

 
 
 
 

211. The upper region of moss capsule is :

 
 
 
 

212. Which of the following is sago palm?

 
 
 
 

213. Genetic material of TMV is:

 
 
 
 

214. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

216. Oswald Tippo’s classification was based on :

 
 
 
 

217. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

219. Ergot is obtained from :

 
 
 
 

220. Tautonyms are illegitimate in:

 
 
 
 

221. Majority of lichens are :

 
 
 
 

222. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

224. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

227. Pinus is:

 
 
 
 

228. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

233. Spirogyra differs from moss protonema in having :

 
 
 
 

234. Linnaeus is credited with introducing:

 
 
 
 

235. Clostridium can:

 
 
 
 

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

 
 
 
 

237. The chief characteristic of bryophyta is that :

 
 
 
 

238. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

240. The gametophyte produced by apospory is :

 
 
 
 

241. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

243. The ferns are usually found:

 
 
 
 

244. Rhizopus belongs to:

 
 
 
 

245. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

251. Fruits are not found in:

 
 
 
 

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

 
 
 
 

253. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

255. Mycoplasmas are not viruses in nature because:

 
 
 
 

256. Pteridophytes are also known as :

 
 
 
 

257. The alga, Spirogyra are found in :

 
 
 
 

258. Heterosporous pteridophytes always form:

 
 
 
 

259. The leaves of Funaria are :

 
 
 
 

260. Which of the following is a monocot?

 
 
 
 

261. Lichens show :

 
 
 
 

262. Circular DNA is seen in:

 
 
 
 

263. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

265. Which is absent from the xylem of Cycas?

 
 
 
 

266. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

271. 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?

 
 
 
 

272. Azolla and Salvinia both are:

 
 
 
 

273. Coenogamete is found in:

 
 
 
 

274. Facultative parasite is:

 
 
 
 

275. Photoautotrophic bacteria have:

 
 
 
 

276. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

278. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

280. 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?

 
 
 
 

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

 
 
 
 

282. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

285. Absorptive nutrition is:

 
 
 
 

286. Ginkgo biloba is a:

 
 
 
 

287. In a bacteriophage, DNA is present in:

 
 
 
 

288. Protistan algae obtain their food as:

 
 
 
 

289. Diploxylic vascular bundles are found in:

 
 
 
 

290. To which class Riccia belongs :

 
 
 
 

291. Spirogyra represents the :

 
 
 
 

292. Which lichen is called Reindeer moss?

 
 
 
 

293. Acellular slime mold is/are:

 
 
 
 

294. Disease resistant plant varieties can be produced by :

 
 
 
 

295. Nitrogen-fixing bacteria may be located:

 
 
 
 

296. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

303. Which one of the following statement is wrong?

 
 
 
 

304. In Herpes virus DNA is:

 
 
 
 

305. Red rot of sugarcane is caused by :

 
 
 
 

306. The most important property of yeast is:

 
 
 
 

307. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

310. The source of litmus is :

 
 
 
 

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

 
 
 
 

312. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

314. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

316. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

318. The development of Selaginella embryo is:

 
 
 
 

319. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

321. 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:

 
 
 
 

322. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

324. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

326. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

333. Ovary is absent in:

 
 
 
 

334. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

336. Proembryo in Pinus is :

 
 
 
 

337. Virion refers to:

 
 
 
 

338. Bacteriophage consists of:

 
 
 
 

339. Most of the algae are :

 
 
 
 

340. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. Cyathia is characterized by:

 
 
 
 

344. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

345. Botulinum toxin effects:

 
 
 
 

346. Which statement is wrong in regard to bacteria?

 
 
 
 

347. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

349. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

353. Polystelic condition is found in:

 
 
 
 

354. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

356. Lichen show :

 
 
 
 

357. Pasteurized milk is:

 
 
 
 

358. Water-net is the name of:

 
 
 
 

359. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

362. In moss, reduction division occurs in :

 
 
 
 

363. Which of the following shows heterotrichous habit?

 
 
 
 

364. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

365. The first to isolate a plant virus was:

 
 
 
 

366. The term stele was given by:

 
 
 
 

367. Which is an edible fungus?

 
 
 
 

368. Pneumonia is caused by:

 
 
 
 

369. In moss, sporophyte is formed on:

 
 
 
 

370. The archegonia in Selaginella develop on:

 
 
 
 

371. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

373. Banana bunchy top is caused by :

 
 
 
 

374. Usually, bacteria reproduce by:

 
 
 
 

375. Synzoospore is produced in:

 
 
 
 

376. Meristele of fern is:

 
 
 
 

377. 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?

 
 
 
 

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

 
 
 
 

379. Which of the following lichens is harmful?

 
 
 
 

380. Isomorphic type alternation of generation is found in:

 
 
 
 

381. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

384. Smut of maize is caused by :

 
 
 
 

385. In a diplontic life cycle:

 
 
 
 

386. All protozoans possess:

 
 
 
 

387. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

390. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

392. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

394. The smallest bacterium is:

 
 
 
 

395. The zygospore in Rhizopus on germination forms:

 
 
 
 

396. Roots are absent in :

 
 
 
 

397. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

400. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

402. The role of meiosis is for:

 
 
 
 

403. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

412. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

414. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

416. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

419. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

420. Triple antigen injection or vaccine are for:

 
 
 
 

421. The fungi used as food are:

 
 
 
 

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

 
 
 
 

423. 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:

 
 
 
 

424. Who discovered heterothallism in fungi?

 
 
 
 

425. The mycelium of Rhizopus is:

 
 
 
 

426. Downy mildew disease is caused by :

 
 
 
 

427. Pollination drop is:

 
 
 
 

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

 
 
 
 

429. Ovary is absent in :

 
 
 
 

430. Yeast grows more rapidly in:

 
 
 
 

431. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

433. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

435. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

438. In Pteris, the archegonia are present:

 
 
 
 

439. The male gametes of Pinus are :

 
 
 
 

440. Among the algae kelps are :

 
 
 
 

441. Agar-agar is obtained from:

 
 
 
 

442. Which of the following is true for Selaginella?

 
 
 
 

443. Enzymes are absent in:

 
 
 
 

444. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

448. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

453. The teeth of peristome of Funaria are :

 
 
 
 

454. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

456. Heterotrichous habit means :

 
 
 
 

457. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

459. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

460. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

463. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

467. Male gametophyte of Selaginella is found:

 
 
 
 

468. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

469. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

476. What is streptomycin?

 
 
 
 

477. 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:

 
 
 
 

478. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

484. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

486. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

488. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

490. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

492. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

496. Botulism is a:

 
 
 
 

497. The middle sterile part of capsule is called:

 
 
 
 

498. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

500. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

502. Fern prothallus is:

 
 
 
 

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

 
 
 
 

504. Endemic plants are characterised by their:

 
 
 
 

505. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

507. Rice, pea, potato are :

 
 
 
 

508. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

511. Cycas is different from mango in :

 
 
 
 

512. Spores of which plants have chloroplast:

 
 
 
 

513. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

515. Black rust of wheat is caused by:

 
 
 
 

516. Climbers are found in genus:

 
 
 
 

517. Aflatoxin is produced as a product in :

 
 
 
 

518. Placenta in fern is:

 
 
 
 

519. Vascular cryptogam is the term used for :

 
 
 
 

520. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

522. Cleavage polyembryony is found in :

 
 
 
 

523. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

524. Which of the following are included in Tracheophyta?

 
 
 
 

525. The similarity between cyanobacteria and bacteria:

 
 
 
 

526. Multicellular and jacketed sex organs are found in :

 
 
 
 

527. The stele of Dryopteris is a:

 
 
 
 

528. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

530. Ethylene oxide is widely used to:

 
 
 
 

531. The sporangia of Selaginella are attached:

 
 
 
 

532. Which of the following statement is correct?

 
 
 
 

533. Sporophyte of fern is:

 
 
 
 

534. Seeds are characteristically found in:

 
 
 
 

535. Viruses have:

 
 
 
 

536. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

538. In Cycas:

 
 
 
 

539. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

541. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

543. Fairy ring is the name given to:

 
 
 
 

544. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

547. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

549. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

551. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

553. Which of the following are included in Tracheophyta?

 
 
 
 

554. Reserve food in Euglena is:

 
 
 
 

555. Penicillin is obtained from:

 
 
 
 

556. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

558. Which fixes atmospheric nitrogen?

 
 
 
 

559. The chloroplast in Ulothrix is :

 
 
 
 

560. In moss, peristomial teeth are:

 
 
 
 

561. What is special feature of fern archegonia?

 
 
 
 

562. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

564.

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

 
 
 
 

566. Fruiting body of lichens is :

 
 
 
 

567. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

571. Why is Cycas called a living fossil?

 
 
 
 

572. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

573. The sporangiophores in Rhizopus are:

 
 
 
 

574. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

576. All archaebacteria lack:

 
 
 
 

577. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

579. Which group of algae have an incipient nucleus?

 
 
 
 

580. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

585. The archegonia of Selaginella are differentiated by:

 
 
 
 

586. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

589. Fern plants are:

 
 
 
 

590. The chloroplast of Chlamydomonas are:

 
 
 
 

591.

592. What is a vector?

 
 
 
 

593. Which is an exception to cell theory?

 
 
 
 

594. The microsporophylls on the cone of Cycas are :

 
 
 
 

595. Streptomyces falls under:

 
 
 
 

596. Most primitive embryophytes are placed in:

 
 
 
 

597. Bryophyta have a special character from other plants:

 
 
 
 

598. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

601. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

603. Mixed cropping helps :

 
 
 
 

604. Embryo formation is not known in :

 
 
 
 

605. Ovules are not found enclosed in ovary of:

 
 
 
 

606. Most of the lichens are composed of :

 
 
 
 

607. Oswald Tippo’s classification is:

 
 
 
 

608. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

610. Lichens are the indicator of pollution :

 
 
 
 

611. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

613. Some bacteria cannot be killed easily because of:

 
 
 
 

614. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

616. Lichens reproduce by :

 
 
 
 

617. The sporophyte of Riccia is :

 
 
 
 

618. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

620. Cellular slime mold is:

 
 
 
 

621. Who named prion?

 
 
 
 

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

 
 
 
 

623. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

626. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

629. Which class of Protozoa includes all parasitic forms?

 
 
 
 

630. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

632. In Cycas the fertilization is:

 
 
 
 

633. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

635. Which of the following statements is not correct?

 
 
 
 

636. In dinoflagellates, the two flagella are:

 
 
 
 

637. Photosynthetic protists belong to:

 
 
 
 

638. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

640. Leprosy is caused by:

 
 
 
 

641. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

643. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

646. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

650. The lambda phase is a:

 
 
 
 

651. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

652. Chemosynthetic bacteria are:

 
 
 
 

653. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

655. Cycas is :

 
 
 
 

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

 
 
 
 

657. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

662. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

664. The fungi are usually:

 
 
 
 

665. The gametophyte of fern bears:

 
 
 
 

666. Which part of Riccia bears nurse cells?

 
 
 
 

667. The coralloid roots are :

 
 
 
 

668. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. Nannandria are:

 
 
 
 

673. The gametophyte of fern is as:

 
 
 
 

674. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. Most primitive group of vascular plants are:

 
 
 
 

678. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

679. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

682. Lichens form the first community in

 
 
 
 

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

 
 
 
 

684. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

686. Nitrifying bacteria play an important role by converting:

 
 
 
 

687. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

689. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

691. Common phycobiont in a lichen is :

 
 
 
 

692. Bacteriophages have been used as:

 
 
 
 

693. Cell walls of Gram-positive bacteria contain:

 
 
 
 

694. Water bloom is generally caused by :

 
 
 
 

695. Asexual reproductive body of Volvox is called:

 
 
 
 

696. Ergot of rye is caused by:

 
 
 
 

697. Some diseases caused by bacteria are:

 
 
 
 

698. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

700. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

704. Which of the following have algal zone?

 
 
 
 

705. Plasmids are:

 
 
 
 

706. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

709. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

711. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

713. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

715. Reproduction in Rhizopus is:

 
 
 
 

716. Mycoplasma are sensitive to:

 
 
 
 

717. Cocci types of bacteria are:

 
 
 
 

718. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

722. Choose the correct statement about Spirogyra:

 
 
 
 

723. The chromosomal number in:

 
 
 
 

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

 
 
 
 

725. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

727. The antherozoids of Funaria are :

 
 
 
 

728. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

732. The phloem of vascular system of Cycas is :

 
 
 
 

733. Maximum diversity of life forms occurs in :

 
 
 
 

734. All algae have:

 
 
 
 

735. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

737. The tree fern is:

 
 
 
 

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

 
 
 
 

739. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

741. Interferon is a:

 
 
 
 

742. Gram stain is used to:

 
 
 
 

743. The smallest unit of classification is:

 
 
 
 

744. Rhizophore of Selaginella is:

 
 
 
 

745. Rhizoids of Riccia are :

 
 
 
 

746. Streptomycin is obtained from:

 
 
 
 

747. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

752. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

756. Lichens reproduce by :

 
 
 
 

757. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

759. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

761. Detailed study of bacteriophage was made by:

 
 
 
 

762. The lichens growing on rocks are called :

 
 
 
 

763. The chief characteristic of class Ascomycetes is:

 
 
 
 

764. Protozoans are considered animals because these are:

 
 
 
 

765. The zoospores of Ulothrix are :

 
 
 
 

766. Bacteria differ from viruses in being sensitive to:

 
 
 
 

767. NBG of Lucknow is now named as:

 
 
 
 

768. The fungi are mostly:

 
 
 
 

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

 
 
 
 

770. The photosynthetic protists are:

 
 
 
 

771. Chief constituents of bordeaux mixture are :

 
 
 
 

772.

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

 
 
 
 

774. The spur of Pinus roxburghii has :

 
 
 
 

775. Which causes red tide?

 
 
 
 

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

 
 
 
 

777. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

781. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

783. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

785. Most common type of conjugation in Spirogyra is :

 
 
 
 

786. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

788. Helotism word is used for the symbiosis between :

 
 
 
 

789. What is mycorrhiza?

 
 
 
 

790. In tracheophyta:

 
 
 
 

791. An alga which is rich in proteins:

 
 
 
 

792. The root nodules of leguminous plants contain:

 
 
 
 

793. Fern prothallus produces:

 
 
 
 

794. Typhoid in man is caused by:

 
 
 
 

795. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

798. Pollination in Pinus is :

 
 
 
 

799. The spermatozoids of Cycas are :

 
 
 
 

800. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

812. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

817. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

820. Redness of red sea is due to :

 
 
 
 

821. Yeast is a source of:

 
 
 
 

822. In moss, conducting tissue is made up of

 
 
 
 

823. How is moss different from fern?

 
 
 
 

824. Funaria is :

 
 
 
 

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

 
 
 
 

826. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

828. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

831. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

833. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

834. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

836. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

840. Late blight of potato is caused by :

 
 
 
 

841. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

843. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

847. The rhizoids of Funaria are :

 
 
 
 

848. The fungi that grow on wood are called:

 
 
 
 

849. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

852. Which of the following are absent in Mycoplasma?

 
 
 
 

853. Most primitive embryophytes are placed in :

 
 
 
 

854. A gill of Agaricus:

 
 
 
 

855. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

858. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. Red rot of sugarcane is caused by:

 
 
 
 

864. Commonest mode of asexual reproduction in bacteria is: