Quiz_Random

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

 
 
 
 

2. How is moss different from fern?

 
 
 
 

3. Which is an edible fungus?

 
 
 
 

4. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. The fungi are mostly:

 
 
 
 

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

 
 
 
 

9. Methanogens belong to:

 
 
 
 

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

 
 
 
 

11. Saccharomyces ludwigii ascus produces:

 
 
 
 

12. Longest known virus is:

 
 
 
 

13. Enteric bacteria are those bacteria that live:

 
 
 
 

14. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

16. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

18. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

20. Most primitive embryophytes are placed in:

 
 
 
 

21. Spirogyra differs from moss protonema in having :

 
 
 
 

22. Fern prothallus is:

 
 
 
 

23. Citrus canker is caused by:

 
 
 
 

24. To which country Antony van Leeuwenhoek belong?

 
 
 
 

25. 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:

 
 
 
 

26. The zoospores of Ulothrix are :

 
 
 
 

27. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. Rhizopus and yeast are usually:

 
 
 
 

34. Desired type of Cycas can be grown by:

 
 
 
 

35. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

37. The leaves of Funaria are :

 
 
 
 

38. 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:

 
 
 
 

39. Cycas is different from mango in :

 
 
 
 

40. The ferns are usually found:

 
 
 
 

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

 
 
 
 

42. The chief characteristic of bryophyta is that :

 
 
 
 

43. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

45. . Tapetum develops in:

 
 
 
 

46. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

49. Maximum diversity of life forms occurs in :

 
 
 
 

50. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

55. Facultative parasite is:

 
 
 
 

56. What is special feature of fern archegonia?

 
 
 
 

57. Select the wrong statement:

 
 
 
 

58. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. Most of the lichens are composed of :

 
 
 
 

62. Roots are absent in :

 
 
 
 

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

 
 
 
 

64. Ovary is absent in :

 
 
 
 

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

 
 
 
 

66. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

68. Vascular cryptogam is the term used for :

 
 
 
 

69. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. Bentham and Hooker placed gymnosperms:

 
 
 
 

73. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

75. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Photoautotrophic bacteria have:

 
 
 
 

79. What is streptomycin?

 
 
 
 

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

 
 
 
 

81. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Late blight of potato is caused by :

 
 
 
 

85. Ulothrix produces :

 
 
 
 

86. In angiosperms double fertilization represents:

 
 
 
 

87. Chief constituents of bordeaux mixture are :

 
 
 
 

88. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

89. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

91. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

93. The photosynthetic protists are:

 
 
 
 

94. Pasteur is famous for his:

 
 
 
 

95. In moss, calyptra is formed from:

 
 
 
 

96. Ovules are not found enclosed in ovary of:

 
 
 
 

97. The disease symptom necrosis refers to :

 
 
 
 

98. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

102. Which is a fungicide?

 
 
 
 

103. Bacteriophages have been used as:

 
 
 
 

104. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. The rhizoids of Funaria are :

 
 
 
 

108. Fertility of the soil is increased by:

 
 
 
 

109. Centric discoid form of diatom is:

 
 
 
 

110. Clostridium can:

 
 
 
 

111. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

114. The sexual reproductive organs in Rhizopus are:

 
 
 
 

115. Chemosynthetic bacteria are:

 
 
 
 

116. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

118. Meristele of fern is:

 
 
 
 

119. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

124. What is a vector?

 
 
 
 

125. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

127. Pinus gerardiana is :

 
 
 
 

128. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. The ascus of yeast contains:

 
 
 
 

134. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

136. The archegonia of Selaginella are differentiated by:

 
 
 
 

137. Common phycobiont in a lichen is :

 
 
 
 

138. Streptomyces falls under:

 
 
 
 

139. Which of the following is sago palm?

 
 
 
 

140. The gametophyte produced by apospory is :

 
 
 
 

141. Which is an exception to cell theory?

 
 
 
 

142. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

144. Bryophyta have a special character from other plants:

 
 
 
 

145. Which is a tautonym?

 
 
 
 

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

 
 
 
 

147. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

151. Ovules are not found enclosed in ovary in :

 
 
 
 

152. Funaria is a Bryophyta because :

 
 
 
 

153. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

156. All protozoans possess:

 
 
 
 

157. Funaria are commonly found :

 
 
 
 

158. Detailed study of bacteriophage was made by:

 
 
 
 

159. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

161. The fungi are usually:

 
 
 
 

162. Spermatophyta are characterized by producing:

 
 
 
 

163. Polystelic condition is found in:

 
 
 
 

164. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

165. Lichens are ecologically important because :

 
 
 
 

166. Pasteurization of milk involves heating for:

 
 
 
 

167. The teeth of peristome of Funaria are :

 
 
 
 

168. Viroids have:

 
 
 
 

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

 
 
 
 

170. Lichens reproduce by :

 
 
 
 

171. Heterocysts are found in :

 
 
 
 

172. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

175. Ovary is absent in:

 
 
 
 

176. In Pteris, the archegonia are present:

 
 
 
 

177. Fruiting body of lichens is :

 
 
 
 

178. Male gametophyte of Selaginella is found:

 
 
 
 

179. The first to isolate a plant virus was:

 
 
 
 

180. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

182. Indusium in Dryopteris is:

 
 
 
 

183. Water-net is the name of:

 
 
 
 

184. Spermatophyta are characterized by producing:

 
 
 
 

185. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

187. Botulism is a:

 
 
 
 

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

 
 
 
 

189. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

191. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

194. The plants of Funaria grow :

 
 
 
 

195. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

197. Special feature of pollen grains of Pinus is :

 
 
 
 

198. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

201. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

204. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

207. Some diseases caused by bacteria are:

 
 
 
 

208. Yeast is a source of:

 
 
 
 

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

 
 
 
 

210. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

212. Diphtheria is caused by:

 
 
 
 

213. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

215. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

217. The most primitive vascular plants is:

 
 
 
 

218. In moss, conducting tissue is made up of

 
 
 
 

219. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

223. Mostly type of zygospore in Ulothrix is:

 
 
 
 

224. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

230. Which of the following have algal zone?

 
 
 
 

231. Lichens form the first community in

 
 
 
 

232. The young leaves of Cycas have :

 
 
 
 

233. In dinoflagellates, the two flagella are:

 
 
 
 

234. NBG of Lucknow is now named as:

 
 
 
 

235. The nucleus of bacteria is:

 
 
 
 

236. Redness of red sea is due to :

 
 
 
 

237. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

239. 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?

 
 
 
 

240. Reserve food in Euglena is:

 
 
 
 

241. The antherozoids of Funaria are :

 
 
 
 

242. Transfusion tissue is present in the leaflet of:

 
 
 
 

243. Who discovered streptomycin?

 
 
 
 

244. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

245. Fruits are not found in :

 
 
 
 

246. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. The two conjugating gametangia of Rhizopus are:

 
 
 
 

251. Bacteria differ from viruses in being sensitive to:

 
 
 
 

252. Pteridophyta are also called:

 
 
 
 

253. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

258. Generic name of mango is:

 
 
 
 

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

 
 
 
 

260. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

262. TMV was isolated in crystalline form by:

 
 
 
 

263. Select the wrong statement:

 
 
 
 

264. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

265. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

268. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

271. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

273. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

275. In moss, sporophyte is formed on:

 
 
 
 

276. Cyathia is characterized by:

 
 
 
 

277. The leaves of Funaria are :

 
 
 
 

278. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

282. Placenta in fern is:

 
 
 
 

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

 
 
 
 

284. How a fern differs from a moss?

 
 
 
 

285. The chief characteristic of class Ascomycetes is:

 
 
 
 

286. Fern phloem lacks:

 
 
 
 

287. The flagella of Chlamydomonas are:

 
 
 
 

288. The zygospore in Rhizopus on germination forms:

 
 
 
 

289. Which one of the following statement is wrong?

 
 
 
 

290. The sporangia of Selaginella are attached:

 
 
 
 

291. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

293. Most of the algae are :

 
 
 
 

294. Embryophyta includes:

 
 
 
 

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

 
 
 
 

296. The genetic material of poxvirus is:

 
 
 
 

297. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

300. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

302. Fairy ring is the name given to:

 
 
 
 

303. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

305. Cycas revoluta is widely grown as :

 
 
 
 

306. Which lichen is called Reindeer moss?

 
 
 
 

307. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

310. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

313. Lichen show :

 
 
 
 

314. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

317. The development of sporangium in Selaginella is:

 
 
 
 

318. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

320. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

322. Among the algae kelps are :

 
 
 
 

323. Heterospory and ligulate leaves are a feature of:

 
 
 
 

324. In a bacteriophage, DNA is present in:

 
 
 
 

325. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

327. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

328. Azolla growing in paddy fields helps in:

 
 
 
 

329. Discovery of penicillin was based on:

 
 
 
 

330. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

333. All algae have:

 
 
 
 

334. Vegetative reproduction in Cycas is by means of :

 
 
 
 

335. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

338. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

341. Heterosporous pteridophytes always form:

 
 
 
 

342. Green plants are classified as:

 
 
 
 

343. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

345. Circular DNA is seen in:

 
 
 
 

346. Water bloom is generally caused by :

 
 
 
 

347. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

349. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

351. Which of the following have a prokaryotic cell?

 
 
 
 

352. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

354. Multicellular and jacketed sex organs are found in :

 
 
 
 

355. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

357. Protistan algae obtain their food as:

 
 
 
 

358. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

362. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

365. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

368. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

371. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

372. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

374. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

382. Which condition is found in Cycas?

 
 
 
 

383. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

388. Lichens show :

 
 
 
 

389. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

392. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

394. The roots of Cycas are :

 
 
 
 

395. Pollination drop is:

 
 
 
 

396. The largest alga is:

 
 
 
 

397. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

399. Facultative saprophyte is:

 
 
 
 

400. Which among the following is a shrub?

 
 
 
 

401. Quarantine regulations are concerned with:

 
 
 
 

402. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

404. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

408. Pollination in Cycas takes place by :

 
 
 
 

409. Which is not found in bacteria?

 
 
 
 

410. Spores of which plants have chloroplast:

 
 
 
 

411. Why is Cycas called a living fossil?

 
 
 
 

412. Protozoans are considered animals because these are:

 
 
 
 

413. Majority of lichens are :

 
 
 
 

414. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

416. Psilotum is:

 
 
 
 

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

 
 
 
 

418. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

421. Penicillin is obtained from:

 
 
 
 

422. Lichens are pioneers of vegetation in a :

 
 
 
 

423. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

426. In Herpes virus DNA is:

 
 
 
 

427. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

429. Green plants are classified as :

 
 
 
 

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

 
 
 
 

431. Chemosynthetic bacteria are:

 
 
 
 

432. Asexual reproductive body of Volvox is called:

 
 
 
 

433. Gametophyte is the main plant body in :

 
 
 
 

434. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

435. The spur of Pinus roxburghii has :

 
 
 
 

436. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

439. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

441. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

443. Gram stain is used to:

 
 
 
 

444. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

446. Total parasites belong to:

 
 
 
 

447. Which of the following is true for Selaginella?

 
 
 
 

448. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. John Hutchinson divided dicots into two divisions:

 
 
 
 

452. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

453. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

455. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

457. Funaria is :

 
 
 
 

458. Which causes red tide?

 
 
 
 

459. 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:

 
 
 
 

460. Leaf spot of groundnut is caused by :

 
 
 
 

461. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

463. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

465. Which organisms are the oldest life forms?

 
 
 
 

466.

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

472. Interferon is a:

 
 
 
 

473. Which of the following are included in Tracheophyta?

 
 
 
 

474. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478. The coralloid roots are :

 
 
 
 

479. Germination of the seed of Pinus is :

 
 
 
 

480. Sexual reproduction in Rhizopus is by:

 
 
 
 

481. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

483. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

486. Virus and bacteriophage are made-up of:

 
 
 
 

487. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

490. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

492. Enzymes are absent in:

 
 
 
 

493. An alga which is rich in proteins:

 
 
 
 

494. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

498. The chromosomal number in:

 
 
 
 

499. In Funaria :

 
 
 
 

500. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

502. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

505. Which fixes atmospheric nitrogen?

 
 
 
 

506. Black rust of wheat is caused by:

 
 
 
 

507. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

510. In tracheophyta:

 
 
 
 

511. E coli is a:

 
 
 
 

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

 
 
 
 

513. In moss, sporogenous tissue arises from:

 
 
 
 

514. Mycoplasma are:

 
 
 
 

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

 
 
 
 

516. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

519. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

521. Aflatoxin is produced by:

 
 
 
 

522. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

524. Rhizoids of Riccia are :

 
 
 
 

525.

 

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

 
 
 
 

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

 
 
 
 

528. Which one of the following is a monocot?

 
 
 
 

529. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

531. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. The largest known bacterium is:

 
 
 
 

537. Who discovered cyanophages?

 
 
 
 

538. Nitrifying bacteria play an important role by converting:

 
 
 
 

539. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. The fungi used as food are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

545. Which class of Protozoa includes all parasitic forms?

 
 
 
 

546. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Most primitive kind of flower is represented by:

 
 
 
 

550. Who named prion?

 
 
 
 

551. Which part of Riccia bears nurse cells?

 
 
 
 

552. The mode of nutrition of bacteria is usually:

 
 
 
 

553. The alga, Spirogyra are found in :

 
 
 
 

554. Little leaf disease of Brinjal is caused by:

 
 
 
 

555. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

557. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

559. Cycas is:

 
 
 
 

560. In Cycas microsporangia are borne on:

 
 
 
 

561. Fern plants are:

 
 
 
 

562. Heterotrichous habit means :

 
 
 
 

563. Pythium debaryanum is the causative agent of:

 
 
 
 

564. Cryptogams include :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. Which of the following lichens is harmful?

 
 
 
 

568. Which of the following applies to Selaginella?

 
 
 
 

569. The sporangiophores in Rhizopus are:

 
 
 
 

570. Small epidermal swellings due to infection are called :

 
 
 
 

571. 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?

 
 
 
 

572. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

574. Rhizopus belongs to:

 
 
 
 

575. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

581. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

583. The microsporophylls on the cone of Cycas are :

 
 
 
 

584. In a diplontic life cycle:

 
 
 
 

585. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

587. Disease resistant plant varieties can be produced by :

 
 
 
 

588. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

590. Sexual reproduction of lichen is due to :

 
 
 
 

591. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

597. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

600. Cleavage polyembryony is found in :

 
 
 
 

601. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

603. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

606. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

607. Soil fertility is lost by the activities of:

 
 
 
 

608. First animal pathogenic virus was discovered by:

 
 
 
 

609. Which of the following is a parasitic algae?

 
 
 
 

610. The smallest bacterium is:

 
 
 
 

611. Pasteurized milk is:

 
 
 
 

612. What are plasmids?

 
 
 
 

613. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

617. Most primitive embryophytes are placed in :

 
 
 
 

618. Mycoplasma was discovered by:

 
 
 
 

619. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

621. Gymnosperms could also be called as:

 
 
 
 

622. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

625. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

627. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

629. Iodine is obtained from :

 
 
 
 

630. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

632. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

638. The vascular bundles of Cycas stem are :

 
 
 
 

639. Most primitive group of vascular plants are:

 
 
 
 

640. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. Seeds are characteristically found in:

 
 
 
 

644. Streptomycin is obtained from:

 
 
 
 

645. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

646. Economic importance of bacteria lies in their being:

 
 
 
 

647. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

649. 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:

 
 
 
 

650. The orders generally have the uniform endings:

 
 
 
 

651. Woody climbers are known as :

 
 
 
 

652. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

654. Iodine is obtained from:

 
 
 
 

655. Funaria can be differentiated from Cycas :

 
 
 
 

656. Metulae are found in:

 
 
 
 

657. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. Smut of maize is caused by :

 
 
 
 

661. Each chloroplast in Spirogyra bears :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

664. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

666. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

669. The central part of Funaria axis is :

 
 
 
 

670. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

672. Leprosy is caused by:

 
 
 
 

673. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

675. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

677. Rhizophore of Selaginella is:

 
 
 
 

678. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

681. Bacteria which are spherical are called:

 
 
 
 

682. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

685. Antibiotic has been extracted from :

 
 
 
 

686. LSD is:

 
 
 
 

687. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

689. Funaria is :

 
 
 
 

690. Cyanophage is a virus that attacks:

 
 
 
 

691. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

693. Bacteria were first discovered by:

 
 
 
 

694. Mycoplasmas are not viruses in nature because:

 
 
 
 

695. Choose the correct statement about Spirogyra:

 
 
 
 

696. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

698. The gametophyte of fern bears:

 
 
 
 

699.

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

 
 
 
 

701. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

703. The chloroplast in Ulothrix is :

 
 
 
 

704. Club moss and Peat moss belong to:

 
 
 
 

705. Selaginella differs from Moss in having:

 
 
 
 

706. In Cycas:

 
 
 
 

707. Typhoid in man is caused by:

 
 
 
 

708. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

710. The development of Selaginella embryo is:

 
 
 
 

711. Viruses have:

 
 
 
 

712. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

714. The upper region of moss capsule is :

 
 
 
 

715. The sporophyte of Riccia is :

 
 
 
 

716. Liverworts are included in :

 
 
 
 

717. Tautonyms are illegitimate in:

 
 
 
 

718. The lambda phase is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

723. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. Diploxylic vascular bundles are found in:

 
 
 
 

727. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

732. Which of the following does not contain chlorophyll?

 
 
 
 

733. The sporophyte of Riccia is represented by :

 
 
 
 

734. Which of the following are absent in Mycoplasma?

 
 
 
 

735. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

740. Which is absent from the xylem of Cycas?

 
 
 
 

741. Bacteria are found everywhere, except:

 
 
 
 

742. In moss, reduction division occurs in :

 
 
 
 

743. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

745. Ethylene oxide is widely used to:

 
 
 
 

746. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

748. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

751. Fruits are not found in Cycas because:

 
 
 
 

752. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

754. Fruits are not found in:

 
 
 
 

755. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

757. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

761. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. Pseudomycelium is found in:

 
 
 
 

765. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. Which statement is wrong in regard to bacteria?

 
 
 
 

770. Sleeping sickness disease in man is caused by:

 
 
 
 

771. Most appropriate word for protozoans is:

 
 
 
 

772. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

774. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

776. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

778. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

780. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

783. Etiology includes the study of :

 
 
 
 

784. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

789. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

793. Bacteria growing on synthetic medium are called:

 
 
 
 

794. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

800. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

802. Viruses are considered to be:

 
 
 
 

803. Broad spectrum antibiotic is, which:

 
 
 
 

804. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

806. 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:

 
 
 
 

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

 
 
 
 

808. The middle sterile part of capsule is called:

 
 
 
 

809. White rust of crucifers is caused by:

 
 
 
 

810. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

813. Cycas is :

 
 
 
 

814. The leaf of Cycas shows:

 
 
 
 

815. Club moss is the common name of :

 
 
 
 

816. 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?

 
 
 
 

817. The fungi that grow on wood are called:

 
 
 
 

818. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

820. Which group of algae have an incipient nucleus?

 
 
 
 

821. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

826. Antibiotics cure the disease by:

 
 
 
 

827. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

829. The prothallus of fern is:

 
 
 
 

830. Reproduction in Rhizopus is:

 
 
 
 

831. Synzoospore is produced in:

 
 
 
 

832. The Rhizopus is:

 
 
 
 

833. Most resistant spore in bacteria is:

 
 
 
 

834. Proembryo in Pinus is :

 
 
 
 

835. 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:

 
 
 
 

836. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

838. 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?

 
 
 
 

839. Virion refers to:

 
 
 
 

840. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

845. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

847. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. Late blight of potato is caused by:

 
 
 
 

851. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

854. Photosynthetic bacteria have:

 
 
 
 

855. Yeast grows more rapidly in:

 
 
 
 

856. Linnaeus is credited with introducing:

 
 
 
 

857.

858. Siphonogamy is found in:

 
 
 
 

859. What is mycorrhiza?

 
 
 
 

860. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

862. Bacteria are placed under:

 
 
 
 

863. The truncated cone of HIV consists of:

 
 
 
 

864. The disease apple scab is caused by: