Quiz_Random

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

 
 
 
 

2. Diploxylic vascular bundles are found in:

 
 
 
 

3. Which bacteria convert nitrate into nitrogen?

 
 
 
 

4. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

6. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. The term stele was given by:

 
 
 
 

12. Roots are absent in :

 
 
 
 

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

 
 
 
 

14. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

16. Longest known virus is:

 
 
 
 

17. Lichens form the first community in

 
 
 
 

18. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

20. The similarity between cyanobacteria and bacteria:

 
 
 
 

21. Fertility of the soil is increased by:

 
 
 
 

22. Cycas is:

 
 
 
 

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

 
 
 
 

24. Bentham and Hooker placed gymnosperms:

 
 
 
 

25. The first to isolate a plant virus was:

 
 
 
 

26. The role of meiosis is for:

 
 
 
 

27. Rhizophore of Selaginella is:

 
 
 
 

28. Virion refers to:

 
 
 
 

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

 
 
 
 

30. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

32. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

34. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

36. Green plants are classified as:

 
 
 
 

37. Metulae are found in:

 
 
 
 

38. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

41. The lambda phase is a:

 
 
 
 

42. The microsporophylls on the cone of Cycas are :

 
 
 
 

43. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

46. Placenta in fern is:

 
 
 
 

47. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

51. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54.

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

 
 
 
 

56. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

58. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

60. Pollination drop is:

 
 
 
 

61. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

63. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

65. The fungi are mostly:

 
 
 
 

66. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

68. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

70. In moss, sporophyte is formed on:

 
 
 
 

71. Select the wrong statement:

 
 
 
 

72. Helotism word is used for the symbiosis between :

 
 
 
 

73. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

74. . Tapetum develops in:

 
 
 
 

75. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

77. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. Most appropriate word for protozoans is:

 
 
 
 

81. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

83. The fungi are usually:

 
 
 
 

84. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

86. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

89. 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:

 
 
 
 

90. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

91. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

93. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

96. 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?

 
 
 
 

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

 
 
 
 

98. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

99. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

102. The megaspore of Selaginella on germination produces:

 
 
 
 

103. The megasporangium of Selaginella is:

 
 
 
 

104. 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:

 
 
 
 

105. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

107. Who among the following discovered virus?

 
 
 
 

108. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

111. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

115. All protozoans possess:

 
 
 
 

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

 
 
 
 

117. Heterotrichous habit means :

 
 
 
 

118. Milk is converted to curd by:

 
 
 
 

119. Bryophyta have a special character from other plants:

 
 
 
 

120. The leaf of Cycas shows:

 
 
 
 

121. Embryophyta includes:

 
 
 
 

122.

123. In angiosperms double fertilization represents:

 
 
 
 

124. Lichens are the indicator of pollution :

 
 
 
 

125. In Cycas microsporangia are borne on:

 
 
 
 

126. Mycoplasma are:

 
 
 
 

127. Methanogens belong to:

 
 
 
 

128. Chemosynthetic bacteria are:

 
 
 
 

129. Lichens reproduce by :

 
 
 
 

130. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

132. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

135. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

139. Parmelia belongs to :

 
 
 
 

140. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

142. In Pteris, the roots are:

 
 
 
 

143. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

145. TMV was isolated in crystalline form by:

 
 
 
 

146. Botulinum toxin effects:

 
 
 
 

147. Which have the largest antherozoid?

 
 
 
 

148. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

150. Viruses have:

 
 
 
 

151. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

153. Pollination in Pinus is :

 
 
 
 

154. Bacteria are considered to be plants because they:

 
 
 
 

155. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

158. All algae have:

 
 
 
 

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

 
 
 
 

160. The source of litmus is :

 
 
 
 

161. What is streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

164. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

167. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

170. Mycoplasma contains:

 
 
 
 

171. Rhizopus belongs to:

 
 
 
 

172. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

175. Disease resistant plant varieties can be produced by :

 
 
 
 

176. 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:

 
 
 
 

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

 
 
 
 

178. Most of the lichens are composed of :

 
 
 
 

179. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

181. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

186. Who discovered cyanophages?

 
 
 
 

187. The order generally ends with:

 
 
 
 

188. Protistan algae obtain their food as:

 
 
 
 

189. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

193. Embryophyta includes :

 
 
 
 

194. Bacteria differ from viruses in being sensitive to:

 
 
 
 

195. In dinoflagellates, the two flagella are:

 
 
 
 

196. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

197. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

200. Typhoid in man is caused by:

 
 
 
 

201. Chemosynthetic bacteria are:

 
 
 
 

202. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

204. Lichens are indicators of :

 
 
 
 

205. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

212. Cycas plant in appearance resembles :

 
 
 
 

213. Some bacteria cannot be killed easily because of:

 
 
 
 

214. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

218. Selaginella differs from Moss in having:

 
 
 
 

219. The stele of Dryopteris is a:

 
 
 
 

220. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

222. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

227. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

228. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

232. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. Botulism is a:

 
 
 
 

236. In Gymnocarpeae the fruiting body is :

 
 
 
 

237. Lichen show :

 
 
 
 

238. Clostridium can:

 
 
 
 

239. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

242. Funaria is :

 
 
 
 

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

 
 
 
 

244. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

246. The sori in Dryopteris are found on:

 
 
 
 

247. Gymnosperms could also be called as:

 
 
 
 

248. Where does meiosis occur in yeast?

 
 
 
 

249. Nannandria are:

 
 
 
 

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

 
 
 
 

251. Saccharomyces is well known for:

 
 
 
 

252. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

254. Acellular slime mold is/are:

 
 
 
 

255. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

258. Spirogyra differs from moss protonema in having :

 
 
 
 

259. Which is a tautonym?

 
 
 
 

260. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

265. Pinus gerardiana is :

 
 
 
 

266. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

268. Transfusion tissue is present in the leaflet of:

 
 
 
 

269. The ascus of yeast contains:

 
 
 
 

270. Which is a fungicide?

 
 
 
 

271. Facultative parasite is:

 
 
 
 

272. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

276. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

279. The roots of Cycas are :

 
 
 
 

280. Ovary is absent in :

 
 
 
 

281. Which is the correct statement about Selaginella?

 
 
 
 

282. Seeds are characteristically found in:

 
 
 
 

283. Pteridophyta are also called:

 
 
 
 

284. All archaebacteria lack:

 
 
 
 

285. Photoautotrophic bacteria have:

 
 
 
 

286. Male gametophyte of Selaginella is found:

 
 
 
 

287. Germ theory of disease was proposed by:

 
 
 
 

288. Saccharomyces is used in:

 
 
 
 

289. 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?

 
 
 
 

290. Vascular tissue is found in :

 
 
 
 

291. The sporangiophores in Rhizopus are:

 
 
 
 

292. Centric discoid form of diatom is:

 
 
 
 

293. The leafy fern plant represents the:

 
 
 
 

294. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

296. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

300. Lichens show :

 
 
 
 

301. Chief constituents of bordeaux mixture are :

 
 
 
 

302. Iodine is obtained from :

 
 
 
 

303. The gametophyte of fern bears:

 
 
 
 

304. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

306. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. Which of the following is true for viruses?

 
 
 
 

310. What is special feature of fern archegonia?

 
 
 
 

311. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

314. Psilotum is:

 
 
 
 

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

 
 
 
 

316. What is a vector?

 
 
 
 

317. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

320. In moss, stomata are found:

 
 
 
 

321. Desired type of Cycas can be grown by:

 
 
 
 

322. Gram stain is used to:

 
 
 
 

323. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

325. Funaria is a Bryophyta because :

 
 
 
 

326. Nitrifying bacteria play an important role by converting:

 
 
 
 

327. Genetic material of TMV is:

 
 
 
 

328. The ferns are usually found:

 
 
 
 

329. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

330. Pasteurization of milk involves heating for:

 
 
 
 

331. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

333. The seedless plants which possess vascular tissues are:

 
 
 
 

334. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

339. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

341. In Funaria :

 
 
 
 

342. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

345. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

350. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

352. Bacteriophages have been used as:

 
 
 
 

353. Which of the following have algal zone?

 
 
 
 

354. The phloem of vascular system of Cycas is :

 
 
 
 

355. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

357. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

359. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

361. Which fixes atmospheric nitrogen?

 
 
 
 

362. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

365. The central part of Funaria axis is :

 
 
 
 

366. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

368. Pythium debaryanum is the causative agent of:

 
 
 
 

369. True sexuality is not found in:

 
 
 
 

370. The archegonia of Selaginella are differentiated by:

 
 
 
 

371. The fungi that grow on wood are called:

 
 
 
 

372. Which causes red tide?

 
 
 
 

373. Citrus canker is caused by :

 
 
 
 

374. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. Each chloroplast in Spirogyra bears :

 
 
 
 

379. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

381. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

384. Mixed cropping helps :

 
 
 
 

385. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

388.

389. Broad spectrum antibiotic is, which:

 
 
 
 

390. Indusium in Dryopteris is:

 
 
 
 

391. Cycas is different from mango in :

 
 
 
 

392. Viruses are commonly transmitted in plants through:

 
 
 
 

393. Cyanophage is a virus that attacks:

 
 
 
 

394. Who named prion?

 
 
 
 

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

 
 
 
 

396. Lichens are pioneers of vegetation in a :

 
 
 
 

397. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

400. The prothallus of fern represents the plant:

 
 
 
 

401. Which among the following is a shrub?

 
 
 
 

402. Seeds are characteristically found in :

 
 
 
 

403. Which of the following is sago palm?

 
 
 
 

404. Which family of bacteria can decompose a wide variety of organic compounds, natural or man-made, including inert ones like hydrocarbons? This property has actually been used by scientists to reduce pollution such as that from petroleum spillage:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

408. The chloroplast in Ulothrix is :

 
 
 
 

409. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

411. Fairy ring is the name given to:

 
 
 
 

412. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

414. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

416. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

418. To which class Riccia belongs :

 
 
 
 

419. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

421. Viroids have:

 
 
 
 

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

 
 
 
 

423. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

426. Reproduction in Rhizopus is:

 
 
 
 

427. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. Water-net is the name of:

 
 
 
 

434. Total parasites belong to:

 
 
 
 

435. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

439. Infective part of virus was discovered by:

 
 
 
 

440. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

442. What is the role of nitrifying bacteria?

 
 
 
 

443. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

445. What is absent in Deuteromycetes?

 
 
 
 

446. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

448. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. Ovules are not found enclosed in ovary in :

 
 
 
 

452. The spur of Pinus roxburghii has :

 
 
 
 

453. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

455. Bacteria are found everywhere, except:

 
 
 
 

456. The fungi used as food are:

 
 
 
 

457. Citrus canker is caused by:

 
 
 
 

458. Which of the following applies to Selaginella?

 
 
 
 

459. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

469. Cryptogams include :

 
 
 
 

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

 
 
 
 

471. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

473. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

475. Oswald Tippo’s classification was based on :

 
 
 
 

476. Common phycobiont in a lichen is :

 
 
 
 

477. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

479. The upper region of moss capsule is :

 
 
 
 

480. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

482. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

484. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. Endemic plants are characterised by their:

 
 
 
 

489. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

493. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

496. The group algae possesses representatives belonging to kingdom:

 
 
 
 

497. Banana bunchy top is caused by :

 
 
 
 

498. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

502. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

503. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

505. Bacteria which are spherical are called:

 
 
 
 

506. Diphtheria is caused by:

 
 
 
 

507. Ovules are not found enclosed in ovary of:

 
 
 
 

508. Ulothrix produces :

 
 
 
 

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

 
 
 
 

510. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

512. In binomial system most of the words are:

 
 
 
 

513. Usually, bacteria reproduce by:

 
 
 
 

514. Select the wrong statement:

 
 
 
 

515. John Hutchinson divided dicots into two divisions:

 
 
 
 

516. Isomorphic type alternation of generation is found in:

 
 
 
 

517. Sporophyte of fern is:

 
 
 
 

518. The chief characteristic of bryophyta is that :

 
 
 
 

519. Germination of the seed of Pinus is :

 
 
 
 

520. Fern plants are:

 
 
 
 

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

 
 
 
 

522. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

524. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

526. 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:

 
 
 
 

527. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

530. The development of sporangium in Selaginella is:

 
 
 
 

531. Sleeping sickness disease in man is caused by:

 
 
 
 

532. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

534. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

536. How a fern differs from a moss?

 
 
 
 

537. Spermatophyta are characterized by producing:

 
 
 
 

538. The disease apple scab is caused by:

 
 
 
 

539. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

541. Anoxygenic photosynthesis occurs in:

 
 
 
 

542. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

545. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

546. Which is the nuclear material in bacteria?

 
 
 
 

547. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

549. Select the correct statement: (NEET 2016)

 
 
 
 

550. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

554. The leaves of Funaria are :

 
 
 
 

555. Fruits are not found in Cycas because:

 
 
 
 

556. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

558. LSD is:

 
 
 
 

559. Viruses are considered to be:

 
 
 
 

560. The sporophyte of Riccia is :

 
 
 
 

561. Pseudomycelium is found in:

 
 
 
 

562. Amoeba is a member of the phylum:

 
 
 
 

563. Spermatophyta are characterized by producing:

 
 
 
 

564. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

566. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

568. The smallest unit of classification is:

 
 
 
 

569. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

571. Streptomyces falls under:

 
 
 
 

572. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

576. Most common type of conjugation in Spirogyra is :

 
 
 
 

577. E coli is a:

 
 
 
 

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

 
 
 
 

579. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

582. Mycoplasma are sensitive to:

 
 
 
 

583. Late blight of potato is caused by:

 
 
 
 

584. Pinus microsporophyll bears:

 
 
 
 

585. Which is an exception to cell theory?

 
 
 
 

586. What are plasmids?

 
 
 
 

587. Spores of which plants have chloroplast:

 
 
 
 

588. Tautonyms are illegitimate in:

 
 
 
 

589. Which condition is found in Cycas?

 
 
 
 

590. Linnaeus is credited with introducing:

 
 
 
 

591. The plants of Funaria grow :

 
 
 
 

592. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

594. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

596. Heterospory and ligulate leaves are a feature of:

 
 
 
 

597. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

599. Mucilaginous canals in Cycas are found in :

 
 
 
 

600. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. Bacteriophage consists of:

 
 
 
 

604. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

606. Which of the following shows heterotrichous habit?

 
 
 
 

607. 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:

 
 
 
 

608. Quarantine regulations are concerned with:

 
 
 
 

609. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

611. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

614. Small epidermal swellings due to infection are called :

 
 
 
 

615. Which of the following is a monocot?

 
 
 
 

616. The flagella of Chlamydomonas are:

 
 
 
 

617. The nucleus of bacteria is:

 
 
 
 

618. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

622. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

626. Most of the algae are :

 
 
 
 

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

 
 
 
 

628. Which of the following statement is correct?

 
 
 
 

629. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

631. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

633. The middle sterile part of capsule is called:

 
 
 
 

634. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

637. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

647. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

649. Agar-agar is obtained from:

 
 
 
 

650. Which is a redwood tree?

 
 
 
 

651. What are Cyanobacteria?

 
 
 
 

652. Most resistant spore in bacteria is:

 
 
 
 

653. Simple polyembryony is found in :

 
 
 
 

654. The lichens growing on rocks are called :

 
 
 
 

655. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

657. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

659. The coralloid roots are :

 
 
 
 

660. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

663. Nitrogen-fixing bacteria may be located:

 
 
 
 

664. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

666. Sporophyte of Funaria is :

 
 
 
 

667. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

669. 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?

 
 
 
 

670. Cycas revoluta is widely grown as :

 
 
 
 

671. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

672. Mycoplasma is different from bacteria due to:

 
 
 
 

673. Which statement is wrong in regard to bacteria?

 
 
 
 

674. Ectocarpus produces:

 
 
 
 

675. Azolla growing in paddy fields helps in:

 
 
 
 

676. The tree fern is:

 
 
 
 

677. Fern prothallus is:

 
 
 
 

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

 
 
 
 

679. Yeast belongs to class:

 
 
 
 

680. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

681. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

687. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

689. Antibiotics cure the disease by:

 
 
 
 

690. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

692. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

694. The zoospores of Ulothrix are :

 
 
 
 

695. In Cycas which structure is equivalent to stamen?

 
 
 
 

696. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

699. Fruits are not found in:

 
 
 
 

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

 
 
 
 

701. Fern prothallus produces:

 
 
 
 

702. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

704. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

706. The prothallus of fern is:

 
 
 
 

707. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

709. In a diplontic life cycle:

 
 
 
 

710. A gill of Agaricus:

 
 
 
 

711. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. Protists which are diploid reproduce sexually by:

 
 
 
 

715. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

717. Discovery of penicillin was based on:

 
 
 
 

718. In Gymnosperms endosperm is a:

 
 
 
 

719. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

722. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. Which is a gametophytic tissue?

 
 
 
 

727. In Cycas the fertilization is:

 
 
 
 

728. Bacteria are placed under:

 
 
 
 

729. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

731. Funaria is :

 
 
 
 

732. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

741. Which group of algae have an incipient nucleus?

 
 
 
 

742. In tracheophyta:

 
 
 
 

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

 
 
 
 

744. Bacteria were first discovered by:

 
 
 
 

745. 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?

 
 
 
 

746. Most primitive embryophytes are placed in:

 
 
 
 

747. Majority of lichens are :

 
 
 
 

748. Leaf spot of groundnut is caused by :

 
 
 
 

749. Generic name of mango is:

 
 
 
 

750. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

753. Which is not true for Escherichia coli?

 
 
 
 

754. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Bryophyta have been placed in cryptogams because:

 
 
 
 

758. Saccharomyces ludwigii ascus produces:

 
 
 
 

759. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

762. Fern phloem lacks:

 
 
 
 

763. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

765. The fern plant is:

 
 
 
 

766. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

771. The archegonia in Selaginella develop on:

 
 
 
 

772. How is moss different from fern?

 
 
 
 

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

 
 
 
 

774. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

777. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

780. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

785. The DNA of E coli is:

 
 
 
 

786. Aflatoxin is produced as a product in :

 
 
 
 

787. Maximum diversity of life forms occurs in :

 
 
 
 

788. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

791. The genetic material of poxvirus is:

 
 
 
 

792. Iodine is obtained from:

 
 
 
 

793. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

796. Black rust of wheat is caused by:

 
 
 
 

797. In Funaria, calyptra is derived from :

 
 
 
 

798. Club moss and Peat moss belong to:

 
 
 
 

799. The zygospore in Rhizopus on germination forms:

 
 
 
 

800. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

802. The antherozoids of Funaria are :

 
 
 
 

803. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

804. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

807. The disease symptom necrosis refers to :

 
 
 
 

808. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

812. Which of the following is a parasitic algae?

 
 
 
 

813. Pteridophytes are also known as :

 
 
 
 

814. Choose the correct statement about Spirogyra:

 
 
 
 

815. Asexual reproductive body of Volvox is called:

 
 
 
 

816. Enzymes are absent in:

 
 
 
 

817. Club moss is the common name of :

 
 
 
 

818. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

820. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

821. Photosynthetic protists belong to:

 
 
 
 

822. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

825. Red rot of sugarcane is caused by :

 
 
 
 

826. 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:

 
 
 
 

827. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

829. Black rust of wheat is caused by:

 
 
 
 

830. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

832. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

835. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

842. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

844. Coenogamete is found in:

 
 
 
 

845. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

847. Black rust of wheat is caused by:

 
 
 
 

848. Pinus is:

 
 
 
 

849.

 

850. The two conjugating gametangia of Rhizopus are:

 
 
 
 

851. Siphonogamy is found in:

 
 
 
 

852. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

854. Interferon is a:

 
 
 
 

855. Pollination in Cycas takes place by :

 
 
 
 

856. Climbers are found in genus:

 
 
 
 

857. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

860. Early blight of potato is caused by:

 
 
 
 

861. Male gametes in Dryopteris are:

 
 
 
 

862. Sometimes the bacterial cell is enclosed in:

 
 
 
 

863. Wine turns sour because of:

 
 
 
 

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