Quiz_Random

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. In angiosperms double fertilization represents:

 
 
 
 

8. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

18. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

20. Which of the following is a monocot?

 
 
 
 

21. Pythium debaryanum is the causative agent of:

 
 
 
 

22. Sleeping sickness disease in man is caused by:

 
 
 
 

23. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

25. The fungi are mostly:

 
 
 
 

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

 
 
 
 

27. The gametophyte of fern bears:

 
 
 
 

28. Fern plants are:

 
 
 
 

29. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

30. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

32. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

34. The coralloid roots are :

 
 
 
 

35. Which group of algae have an incipient nucleus?

 
 
 
 

36. All algae have:

 
 
 
 

37. 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:

 
 
 
 

38. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

40. Where does meiosis occur in yeast?

 
 
 
 

41. 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:

 
 
 
 

42. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. First animal pathogenic virus was discovered by:

 
 
 
 

46. Number of capsomeres forming capsid of TMV is:

 
 
 
 

47. What is a vector?

 
 
 
 

48. In moss, reduction division occurs in :

 
 
 
 

49. Cyanophage is a virus that attacks:

 
 
 
 

50. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

56. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

61. What is the role of nitrifying bacteria?

 
 
 
 

62. The fungi are usually:

 
 
 
 

63. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

65. What is mycorrhiza?

 
 
 
 

66. The spermatozoids of Cycas are :

 
 
 
 

67. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

69. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Embryophyta includes :

 
 
 
 

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

 
 
 
 

78. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

80. The source of litmus is :

 
 
 
 

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

 
 
 
 

82. Pteridophytes are also known as :

 
 
 
 

83. The sori in Dryopteris are found on:

 
 
 
 

84. Fern phloem lacks:

 
 
 
 

85. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

86. In Funaria :

 
 
 
 

87. The most primitive vascular plants is:

 
 
 
 

88. Cycas revoluta is widely grown as :

 
 
 
 

89. Facultative saprophyte is:

 
 
 
 

90. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

92. The lambda phase is a:

 
 
 
 

93. Rice, pea, potato are :

 
 
 
 

94. Which is absent from the xylem of Cycas?

 
 
 
 

95. The photosynthetic protists are:

 
 
 
 

96. Parmelia belongs to :

 
 
 
 

97. Protistan algae obtain their food as:

 
 
 
 

98. Spermatophyta are characterized by producing:

 
 
 
 

99. Which is the correct statement about Selaginella?

 
 
 
 

100. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

102. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

104. Ulothrix produces :

 
 
 
 

105. The rhizoids of Funaria are :

 
 
 
 

106. Ovary is absent in :

 
 
 
 

107. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

110. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

113. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

117. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

119. Which among the following is a shrub?

 
 
 
 

120. Most of the lichens are composed of :

 
 
 
 

121. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

123. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

125. Kuru, a human disease is caused by:

 
 
 
 

126. An Hfr bacterium is one that contains:

 
 
 
 

127. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

129. Choose the correct statement about Spirogyra:

 
 
 
 

130. The Rhizopus gametes are formed in:

 
 
 
 

131. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

134. The similarity between cyanobacteria and bacteria:

 
 
 
 

135. Viroids have:

 
 
 
 

136. Penicillin was discovered by:

 
 
 
 

137. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

139. Some diseases caused by bacteria are:

 
 
 
 

140. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

144. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

146. Select the wrong statement:

 
 
 
 

147. Chemosynthetic bacteria are:

 
 
 
 

148. Vascular tissue is found in :

 
 
 
 

149. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

153. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

155. The male gametes of Pinus are :

 
 
 
 

156. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

158. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

160. The genetic material of poxvirus is:

 
 
 
 

161. Typhoid in man is caused by:

 
 
 
 

162. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

166. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

168. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

170. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

172. The upper region of moss capsule is :

 
 
 
 

173. Which of the following have algal zone?

 
 
 
 

174. Which have the largest antherozoid?

 
 
 
 

175. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

177. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

180. Halophiles are the bacteria that require for growth:

 
 
 
 

181. Amoeba is a member of the phylum:

 
 
 
 

182. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

184. Soil fertility is lost by the activities of:

 
 
 
 

185. Most of the algae are :

 
 
 
 

186. Who discovered streptomycin?

 
 
 
 

187. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

190. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

192. 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:

 
 
 
 

193. The young leaves of Cycas have :

 
 
 
 

194. Some bacteria cannot be killed easily because of:

 
 
 
 

195. Ovary is absent in:

 
 
 
 

196. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

198. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

200. 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?

 
 
 
 

201. Tautonyms are illegitimate in:

 
 
 
 

202. Cocci types of bacteria are:

 
 
 
 

203. Which of the following is true for viruses?

 
 
 
 

204. Woody climbers are known as :

 
 
 
 

205. Which part of Riccia bears nurse cells?

 
 
 
 

206. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

208. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. Water-net is the name of:

 
 
 
 

214. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

217. White rust of crucifers is caused by:

 
 
 
 

218. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

221. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

222. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

227. Sporophyte of fern is:

 
 
 
 

228. Spirogyra represents the :

 
 
 
 

229. Which of the following is true for Selaginella?

 
 
 
 

230. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. The order generally ends with:

 
 
 
 

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

 
 
 
 

237. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

241. Genetic material of TMV is:

 
 
 
 

242. Meristele of fern is:

 
 
 
 

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

 
 
 
 

244. Little leaf disease of Brinjal is caused by:

 
 
 
 

245. Psilotum is:

 
 
 
 

246. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

248. Viruses have:

 
 
 
 

249. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

254. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

256. Oswald Tippo’s classification was based on :

 
 
 
 

257. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

259. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

262. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

264. A gill of Agaricus:

 
 
 
 

265. Enteric bacteria are those bacteria that live:

 
 
 
 

266. Late blight of potato is caused by:

 
 
 
 

267. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

269. Metulae are found in:

 
 
 
 

270. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

273. Saccharomyces is well known for:

 
 
 
 

274. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

277. Zoogametes are not found in:

 
 
 
 

278. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

280. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. The ferns are usually found:

 
 
 
 

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

 
 
 
 

285. Vegetative reproduction in Cycas is by means of :

 
 
 
 

286. Fern prothallus is:

 
 
 
 

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

 
 
 
 

288. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

291. The megasporangium of Selaginella is:

 
 
 
 

292. In moss, calyptra is formed from:

 
 
 
 

293. Transfusion tissue is present in the leaflet of:

 
 
 
 

294. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

298. Which one of the following is a monocot?

 
 
 
 

299. Which is the nuclear material in bacteria?

 
 
 
 

300. Downy mildew disease is caused by :

 
 
 
 

301. Absorptive nutrition is:

 
 
 
 

302. Viruses are commonly transmitted in plants through:

 
 
 
 

303. Which of the following is sago palm?

 
 
 
 

304. Sexual reproduction in Rhizopus is by:

 
 
 
 

305. Embryo formation is not known in :

 
 
 
 

306. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

308. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

311. Seeds are characteristically found in :

 
 
 
 

312. Heterotrichous habit means :

 
 
 
 

313. The disease apple scab is caused by:

 
 
 
 

314. Bentham and Hooker placed gymnosperms:

 
 
 
 

315. In moss, sporophyte is formed on:

 
 
 
 

316. The chief characteristic of bryophyta is that :

 
 
 
 

317. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

319. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

321. Spores of which plants have chloroplast:

 
 
 
 

322. Which is not true for Escherichia coli?

 
 
 
 

323. The chromosomal number in:

 
 
 
 

324. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

327. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

331. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. Who named prion?

 
 
 
 

337. Which causes red tide?

 
 
 
 

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

 
 
 
 

339. Which is a fungicide?

 
 
 
 

340. Which of the following shows heterotrichous habit?

 
 
 
 

341. The ascus of yeast contains:

 
 
 
 

342. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

345. Most common type of conjugation in Spirogyra is :

 
 
 
 

346. Ethylene oxide is widely used to:

 
 
 
 

347. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

349. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

353. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

355. Leprosy is caused by:

 
 
 
 

356. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

359. Bacteria differ from viruses in being sensitive to:

 
 
 
 

360. Rhizophore of Selaginella is:

 
 
 
 

361.

362. Nannandria are:

 
 
 
 

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

 
 
 
 

364. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

366. Heterocysts are found in :

 
 
 
 

367. The development of Selaginella embryo is:

 
 
 
 

368. Lichens form the first community in

 
 
 
 

369. Fruits are not found in:

 
 
 
 

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

 
 
 
 

371. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

373. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

375. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

377. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

379. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

381. Chemosynthetic bacteria are:

 
 
 
 

382. In moss, peristomial teeth are:

 
 
 
 

383. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

386. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

388. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

390. TMV was isolated in crystalline form by:

 
 
 
 

391. Lichen show :

 
 
 
 

392. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

395. Pinus is:

 
 
 
 

396. Endemic plants are characterised by their:

 
 
 
 

397. Diphtheria is caused by:

 
 
 
 

398. Fertility of the soil is increased by:

 
 
 
 

399. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

403. The largest alga is:

 
 
 
 

404. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

407. The group algae possesses representatives belonging to kingdom:

 
 
 
 

408. Botulism is a:

 
 
 
 

409. The chloroplast of Chlamydomonas are:

 
 
 
 

410. Pollination drop is:

 
 
 
 

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

 
 
 
 

412. True sexuality is not found in:

 
 
 
 

413. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

416. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

418. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. Interferon is a:

 
 
 
 

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

 
 
 
 

425. Which of the following are included in Tracheophyta?

 
 
 
 

426. Ergot of rye is caused by:

 
 
 
 

427. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

429. Funaria is :

 
 
 
 

430. Pteridophyta are also called:

 
 
 
 

431. Virus and bacteriophage are made-up of:

 
 
 
 

432. Diploxylic vascular bundles are found in:

 
 
 
 

433. Most primitive embryophytes are placed in :

 
 
 
 

434. Cell walls of Gram-positive bacteria contain:

 
 
 
 

435. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

437. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

438.

 

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

 
 
 
 

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

 
 
 
 

441. 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:

 
 
 
 

442. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

444. Which of the following is a parasitic algae?

 
 
 
 

445. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

450. Red rot of sugarcane is caused by :

 
 
 
 

451. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

454. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

458. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

460. Liverworts are included in :

 
 
 
 

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

 
 
 
 

462. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

466. Gymnosperms could also be called as:

 
 
 
 

467. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

470. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

473. Virion refers to:

 
 
 
 

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

 
 
 
 

475. The sporangia of Selaginella are attached:

 
 
 
 

476. Ovules are not found enclosed in ovary in :

 
 
 
 

477. Smallpox is caused by:

 
 
 
 

478. The sporophyte of Riccia is represented by :

 
 
 
 

479. Black rust of wheat is caused by:

 
 
 
 

480. E coli is a:

 
 
 
 

481. Centric discoid form of diatom is:

 
 
 
 

482. The antherozoids of Funaria are :

 
 
 
 

483. Bivalved siliceous shell or frustule occur in:

 
 
 
 

484. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

486. 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?

 
 
 
 

487. How a fern differs from a moss?

 
 
 
 

488. Lichens reproduce by :

 
 
 
 

489. In moss, sporogenous tissue arises from:

 
 
 
 

490. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

492. Penicillin is obtained from:

 
 
 
 

493. Detailed study of bacteriophage was made by:

 
 
 
 

494. NBG of Lucknow is now named as:

 
 
 
 

495. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498. Circular DNA is seen in:

 
 
 
 

499. John Hutchinson divided dicots into two divisions:

 
 
 
 

500. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

502. Majority of lichens are :

 
 
 
 

503. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

505. Bacteriophages have been used as:

 
 
 
 

506. Bacteria are placed under:

 
 
 
 

507. Antibiotic has been extracted from :

 
 
 
 

508. Which is an exception to cell theory?

 
 
 
 

509. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514. The prothallus of fern is:

 
 
 
 

515. Late blight of potato is caused by :

 
 
 
 

516. Each chloroplast in Spirogyra bears :

 
 
 
 

517. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

519. Which is a redwood tree?

 
 
 
 

520. LSD is:

 
 
 
 

521. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

524. Which of the following does not contain chlorophyll?

 
 
 
 

525. The leaf of Cycas shows:

 
 
 
 

526. Which fixes atmospheric nitrogen?

 
 
 
 

527. Mycoplasma are:

 
 
 
 

528. Cycas plant in appearance resembles :

 
 
 
 

529. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

530. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

532. In moss, stomata are found:

 
 
 
 

533. The teeth of peristome of Funaria are :

 
 
 
 

534. Agar-agar is obtained from:

 
 
 
 

535. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

537. Ovules are not found enclosed in ovary in :

 
 
 
 

538. In tracheophyta:

 
 
 
 

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

 
 
 
 

540. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. Disease resistant plant varieties can be produced by :

 
 
 
 

544. Funaria is :

 
 
 
 

545. Lichens are indicators of :

 
 
 
 

546. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

551. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

553. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

555. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

557. Which of the following applies to Selaginella?

 
 
 
 

558. 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?

 
 
 
 

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

 
 
 
 

560. Fairy ring is the name given to:

 
 
 
 

561. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

564. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

566. Yeast belongs to class:

 
 
 
 

567. Funaria can be differentiated from Cycas :

 
 
 
 

568. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

570. What are plasmids?

 
 
 
 

571. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

573. The megaspore of Selaginella on germination produces:

 
 
 
 

574. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

576. The fern plant is:

 
 
 
 

577. The Rhizopus is:

 
 
 
 

578. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

580. Placenta in fern is:

 
 
 
 

581. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

583. The tree fern is:

 
 
 
 

584. Photosynthetic bacteria have:

 
 
 
 

585. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

587. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. The flagella of Chlamydomonas are:

 
 
 
 

595. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

597. Rhizopus and yeast are usually:

 
 
 
 

598. Facultative parasite is:

 
 
 
 

599. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

600. Aflatoxin is produced as a product in :

 
 
 
 

601. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

603. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

606. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

608. Nitrogen-fixing bacteria may be located:

 
 
 
 

609. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

611. Club moss and Peat moss belong to:

 
 
 
 

612. Some biologists have used the term Mycetozoa for:

 
 
 
 

613. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

618. Simple polyembryony is found in :

 
 
 
 

619. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

621. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

624. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

626. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

628. Bacteria are considered to be plants because they:

 
 
 
 

629. Fern prothallus produces:

 
 
 
 

630. The chief characteristic of class Ascomycetes is:

 
 
 
 

631. The first to isolate a plant virus was:

 
 
 
 

632. Fruits are not found in Cycas because:

 
 
 
 

633. The microsporophylls on the cone of Cycas are :

 
 
 
 

634. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

636. Spirogyra differs from moss protonema in having :

 
 
 
 

637. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

640. Longest known virus is:

 
 
 
 

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

 
 
 
 

642. Roots are absent in :

 
 
 
 

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

 
 
 
 

644. The orders generally have the uniform endings:

 
 
 
 

645. Fruiting body of lichens is :

 
 
 
 

646. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

649. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

653. The leaves of Funaria are :

 
 
 
 

654. Methanogens belong to:

 
 
 
 

655. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

664. In binomial system most of the words are:

 
 
 
 

665. Lichens show :

 
 
 
 

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

 
 
 
 

667. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

669. Photosynthetic protists belong to:

 
 
 
 

670. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

673. The smallest bacterium is:

 
 
 
 

674. The term stele was given by:

 
 
 
 

675. The sporangiophores in Rhizopus are:

 
 
 
 

676. The disease symptom necrosis refers to :

 
 
 
 

677. The phloem of vascular system of Cycas is :

 
 
 
 

678. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

680. Saccharomyces ludwigii ascus produces:

 
 
 
 

681. The alga, Spirogyra are found in :

 
 
 
 

682. The leaves of Funaria are :

 
 
 
 

683. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

685. Yeast grows more rapidly in:

 
 
 
 

686. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

688. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

690. Heterosporous pteridophytes always form:

 
 
 
 

691. Cycas is:

 
 
 
 

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

 
 
 
 

693. In Funaria, calyptra is derived from :

 
 
 
 

694. Mostly type of zygospore in Ulothrix is:

 
 
 
 

695. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

698. Why is Cycas called a living fossil?

 
 
 
 

699. The spur of Pinus roxburghii has :

 
 
 
 

700. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

703. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

705. In Herpes virus DNA is:

 
 
 
 

706. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

709. Most primitive embryophytes are placed in:

 
 
 
 

710. One of the distinctive feature of Spirogyra is :

 
 
 
 

711. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

713. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

715. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

716. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

720. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

722. Enzymes are absent in:

 
 
 
 

723. The leafy fern plant represents the:

 
 
 
 

724. In Cycas the fertilization is:

 
 
 
 

725.

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

 
 
 
 

727. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

729. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

731. The seedless plants which possess vascular tissues are:

 
 
 
 

732. Cyathia is characterized by:

 
 
 
 

733. Protists which are diploid reproduce sexually by:

 
 
 
 

734. The fungi used as food are:

 
 
 
 

735. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

737. All protozoans possess:

 
 
 
 

738. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

742. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

745. Sporophyte of Funaria is :

 
 
 
 

746. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

749. Triple antigen injection or vaccine are for:

 
 
 
 

750. Pollination in Cycas takes place by :

 
 
 
 

751. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

753. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

755. Cleavage polyembryony is found in :

 
 
 
 

756. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

758. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

762. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

763. Most resistant spore in bacteria is:

 
 
 
 

764. Pinus gerardiana is :

 
 
 
 

765. Fruits are not found in :

 
 
 
 

766. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. The stele of Dryopteris is a:

 
 
 
 

770. Ovules are not found enclosed in ovary of:

 
 
 
 

771. In Gymnosperms endosperm is a:

 
 
 
 

772. Common phycobiont in a lichen is :

 
 
 
 

773. The gametophyte of fern is as:

 
 
 
 

774. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

777. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

780. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

783. Polystelic condition is found in:

 
 
 
 

784. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

787. Heterospory and ligulate leaves are a feature of:

 
 
 
 

788. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. In Pteris, the roots are:

 
 
 
 

793. Yeast is a source of:

 
 
 
 

794. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

798. Small epidermal swellings due to infection are called :

 
 
 
 

799. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. Which is an edible fungus?

 
 
 
 

805. Male gametes in Dryopteris are:

 
 
 
 

806. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

809. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

815. Who among the following discovered virus?

 
 
 
 

816. Clostridium can:

 
 
 
 

817. In dinoflagellates, the two flagella are:

 
 
 
 

818. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

820.

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

 
 
 
 

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

 
 
 
 

823. Most primitive group of vascular plants are:

 
 
 
 

824. Broad spectrum antibiotic is, which:

 
 
 
 

825. Aflatoxin is produced by:

 
 
 
 

826. Sexual reproduction of lichen is due to :

 
 
 
 

827. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

829. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

830. Reproduction in Cycas takes place by :

 
 
 
 

831. Asexual reproductive body of Volvox is called:

 
 
 
 

832. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

834. Pasteur is famous for his:

 
 
 
 

835. The archegonia of Selaginella are differentiated by:

 
 
 
 

836. Iodine is obtained from :

 
 
 
 

837. Wine turns sour because of:

 
 
 
 

838. Redness of red sea is due to :

 
 
 
 

839. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

842. Pseudomycelium is found in:

 
 
 
 

843. The roots of Cycas are :

 
 
 
 

844. Cycas is :

 
 
 
 

845. The gametophyte of moss has distinct phases :

 
 
 
 

846. Pollination in Pinus is :

 
 
 
 

847. Proembryo in Pinus is :

 
 
 
 

848. What is streptomycin?

 
 
 
 

849. Bryophyta have been placed in cryptogams because:

 
 
 
 

850. 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?

 
 
 
 

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

 
 
 
 

852. Desired type of Cycas can be grown by:

 
 
 
 

853. Mycoplasma is different from bacteria due to:

 
 
 
 

854. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

856. Winged pollen grains are found in :

 
 
 
 

857. Which of the following statement is correct?

 
 
 
 

858. The role of meiosis is for:

 
 
 
 

859. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

862. The prothallus of fern represents the plant:

 
 
 
 

863. To which country Antony van Leeuwenhoek belong?

 
 
 
 

864. Black rust of wheat is caused by: