Quiz_Random

1. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

4. Downy mildew disease is caused by :

 
 
 
 

5. Leaf spot of groundnut is caused by :

 
 
 
 

6. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

8. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

10. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

13. Protists which are diploid reproduce sexually by:

 
 
 
 

14. Psilotum is:

 
 
 
 

15. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

19. Yeast belongs to class:

 
 
 
 

20. Viruses are commonly transmitted in plants through:

 
 
 
 

21. Pollination in Pinus is :

 
 
 
 

22. Detailed study of bacteriophage was made by:

 
 
 
 

23. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Virus and bacteriophage are made-up of:

 
 
 
 

27. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Late blight of potato is caused by :

 
 
 
 

32. The most primitive vascular plants is:

 
 
 
 

33. All algae have:

 
 
 
 

34. Fern prothallus produces:

 
 
 
 

35. Embryophyta includes :

 
 
 
 

36. Cap cells are found in the filament of:

 
 
 
 

37. Absorptive nutrition is:

 
 
 
 

38. Fern plants are:

 
 
 
 

39. Antibiotic has been extracted from :

 
 
 
 

40. Clostridium can:

 
 
 
 

41. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

43. Selaginella differs from Moss in having:

 
 
 
 

44. The flagella of Chlamydomonas are:

 
 
 
 

45. Most resistant spore in bacteria is:

 
 
 
 

46. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Meristele of fern is:

 
 
 
 

51. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

54. Citrus canker is caused by :

 
 
 
 

55. The middle sterile part of capsule is called:

 
 
 
 

56. Which of the following are included in Tracheophyta?

 
 
 
 

57. What is special feature of fern archegonia?

 
 
 
 

58. Sexual reproduction in Rhizopus is by:

 
 
 
 

59. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

61. The lichens growing on rocks are called :

 
 
 
 

62. The leaves of Funaria are :

 
 
 
 

63. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

65. Chemosynthetic bacteria are:

 
 
 
 

66. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

68. Water-net is the name of:

 
 
 
 

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

 
 
 
 

70. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

72. Which of the following have a prokaryotic cell?

 
 
 
 

73. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Mycoplasma is different from bacteria due to:

 
 
 
 

77. Heterosporous pteridophytes always form:

 
 
 
 

78. The fungi are mostly:

 
 
 
 

79. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

84. Which of the following lichens is harmful?

 
 
 
 

85. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. The sporangia of Selaginella are attached:

 
 
 
 

89. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

97. In Cycas the fertilization is:

 
 
 
 

98. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

104. Gram stain is used to:

 
 
 
 

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

 
 
 
 

106. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

108. In Selaginella, the microsporangia are:

 
 
 
 

109. Vascular cryptogams is the term used for:

 
 
 
 

110. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

112. The antherozoids of Funaria are :

 
 
 
 

113. Plasmids are:

 
 
 
 

114. The two conjugating gametangia of Rhizopus are:

 
 
 
 

115. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. The teeth of peristome of Funaria are :

 
 
 
 

120. Meiosis in Ulothrix takes place:

 
 
 
 

121. The term stele was given by:

 
 
 
 

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

 
 
 
 

123. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

126. Rhizophore of Selaginella is:

 
 
 
 

127. Which of the following is true for viruses?

 
 
 
 

128. Multicellular and jacketed sex organs are found in :

 
 
 
 

129. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

132. Cycas is :

 
 
 
 

133. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

135. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

137. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. 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?

 
 
 
 

142. Seeds are characteristically found in:

 
 
 
 

143. Cell walls of Gram-positive bacteria contain:

 
 
 
 

144. Genetic material of TMV is:

 
 
 
 

145. Which is the correct statement about Selaginella?

 
 
 
 

146. Most primitive kind of flower is represented by:

 
 
 
 

147. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

149. Lichens form the first community in

 
 
 
 

150. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

152. Which of the following is sago palm?

 
 
 
 

153. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

156. Liverworts are included in :

 
 
 
 

157. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

160. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

162. NBG of Lucknow is now named as:

 
 
 
 

163. Ovary is absent in:

 
 
 
 

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

 
 
 
 

165. 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:

 
 
 
 

166. Fern prothallus is:

 
 
 
 

167. Standard size of a herbarium sheet is:

 
 
 
 

168. In binomial system most of the words are:

 
 
 
 

169. The gametophyte of fern is as:

 
 
 
 

170. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

172. Cycas revoluta is widely grown as :

 
 
 
 

173. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

175. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

179. Yeast is a source of:

 
 
 
 

180. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

182. Heterotrichous habit means :

 
 
 
 

183. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

184. Funaria is :

 
 
 
 

185. Some diseases caused by bacteria are:

 
 
 
 

186. Linnaeus is credited with introducing:

 
 
 
 

187. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

188. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

190. The zoospores of Ulothrix are :

 
 
 
 

191. The largest alga is:

 
 
 
 

192. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

194. Oswald Tippo’s classification is:

 
 
 
 

195. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

198. 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:

 
 
 
 

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

 
 
 
 

200. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

205. In Herpes virus DNA is:

 
 
 
 

206. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

209. In moss, stomata are found:

 
 
 
 

210. Most of the lichens are composed of :

 
 
 
 

211. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

218. Antibiotics cure the disease by:

 
 
 
 

219. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

222. Mucilaginous canals in Cycas are found in :

 
 
 
 

223. Ectocarpus produces:

 
 
 
 

224. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

231. Penicillin was discovered by:

 
 
 
 

232. Infective part of virus was discovered by:

 
 
 
 

233. The group algae possesses representatives belonging to kingdom:

 
 
 
 

234. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

237. Which causes red tide?

 
 
 
 

238. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

241. Interferon is a:

 
 
 
 

242. Polystelic condition is found in:

 
 
 
 

243. The male gametes of Pinus are :

 
 
 
 

244. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

246. Spermatophyta are characterized by producing:

 
 
 
 

247. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

250. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

252. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

254. Which among the following is a shrub?

 
 
 
 

255. In Funaria :

 
 
 
 

256. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

258. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

262. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

264. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

266. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

268. The lambda phase is a:

 
 
 
 

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

 
 
 
 

270. The first to isolate a plant virus was:

 
 
 
 

271. Simple polyembryony is found in :

 
 
 
 

272. Lichens are ecologically important because :

 
 
 
 

273. Ovary is absent in :

 
 
 
 

274. What is absent in Deuteromycetes?

 
 
 
 

275. The order generally ends with:

 
 
 
 

276. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

278. One of the distinctive feature of Spirogyra is :

 
 
 
 

279. A gill of Agaricus:

 
 
 
 

280. The development of sporangium in Selaginella is:

 
 
 
 

281. Which of the following shows heterotrichous habit?

 
 
 
 

282. Which lichen is called Reindeer moss?

 
 
 
 

283. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

285. In a diplontic life cycle:

 
 
 
 

286. Some biologists have used the term Mycetozoa for:

 
 
 
 

287. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

289. Select the wrong statement:

 
 
 
 

290. Ovules are not found enclosed in ovary in :

 
 
 
 

291. Cyathia is characterized by:

 
 
 
 

292. Which of the following does not contain chlorophyll?

 
 
 
 

293. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

301. Rhizopus and yeast are usually:

 
 
 
 

302. Viroids have:

 
 
 
 

303. 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?

 
 
 
 

304. What is mycorrhiza?

 
 
 
 

305. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

307. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

310.

311. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

313. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

316. Fruits are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. Facultative parasite is:

 
 
 
 

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

 
 
 
 

321. The root nodules of leguminous plants contain:

 
 
 
 

322. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

324. What is a vector?

 
 
 
 

325. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

329. Ethylene oxide is widely used to:

 
 
 
 

330. The megaspore of Selaginella on germination produces:

 
 
 
 

331. Tautonyms are illegitimate in:

 
 
 
 

332. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

335. Which condition is found in Cycas?

 
 
 
 

336. Which is a tautonym?

 
 
 
 

337. LSD is:

 
 
 
 

338. In tracheophyta:

 
 
 
 

339. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

347. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

350. The prothallus of fern is:

 
 
 
 

351. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

354. Reproduction in Cycas takes place by :

 
 
 
 

355. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

357. Banana bunchy top is caused by :

 
 
 
 

358. The chief characteristic of class Ascomycetes is:

 
 
 
 

359. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

363. Acellular slime mold is/are:

 
 
 
 

364. The mode of nutrition of bacteria is usually:

 
 
 
 

365. Black rust of wheat is caused by:

 
 
 
 

366. Reserve food in Euglena is:

 
 
 
 

367. Methanogens belong to:

 
 
 
 

368. Amoeba is a member of the phylum:

 
 
 
 

369. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

371. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

375. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

376. How a fern differs from a moss?

 
 
 
 

377. Cycas plant in appearance resembles :

 
 
 
 

378. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

382. Streptomycin is obtained from:

 
 
 
 

383. Black rust of wheat is caused by:

 
 
 
 

384. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

386. Red rot of sugarcane is caused by :

 
 
 
 

387. First animal pathogenic virus was discovered by:

 
 
 
 

388. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

390. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

395. Botulinum toxin effects:

 
 
 
 

396. Lichens are pioneers of vegetation in a :

 
 
 
 

397. What is streptomycin?

 
 
 
 

398. Which of the following is a monocot?

 
 
 
 

399. 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:

 
 
 
 

400. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

402. In Pteris, the roots are:

 
 
 
 

403. The development of Selaginella embryo is:

 
 
 
 

404. Rice, pea, potato are :

 
 
 
 

405. Most primitive group of vascular plants are:

 
 
 
 

406. The Rhizopus is:

 
 
 
 

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

 
 
 
 

408. Which of the following are absent in Mycoplasma?

 
 
 
 

409. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

411. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

413. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

419. Ginkgo biloba is a:

 
 
 
 

420. Indusium in Dryopteris is:

 
 
 
 

421. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

423. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

426. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

429. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

433. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

436. Early blight of potato is caused by:

 
 
 
 

437. Majority of lichens are :

 
 
 
 

438. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

440. Woody climbers are known as :

 
 
 
 

441. Bacteria differ from viruses in being sensitive to:

 
 
 
 

442. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

444. Embryo formation is not known in :

 
 
 
 

445. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

447. Bentham and Hooker placed gymnosperms:

 
 
 
 

448. The mycelium of Rhizopus is:

 
 
 
 

449. Pinus gerardiana is :

 
 
 
 

450. The ferns are usually found:

 
 
 
 

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

 
 
 
 

452. Spirogyra differs from moss protonema in having :

 
 
 
 

453. Botulism is a:

 
 
 
 

454. Vascular cryptogam is the term used for :

 
 
 
 

455. Rhizopus belongs to:

 
 
 
 

456. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

458. Halophiles are the bacteria that require for growth:

 
 
 
 

459. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465.

 

466. 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:

 
 
 
 

467. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

470. Aflatoxin is produced as a product in :

 
 
 
 

471. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

473. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

476. The gametophyte of fern bears:

 
 
 
 

477. The spermatozoids of Cycas are :

 
 
 
 

478. Typhoid in man is caused by:

 
 
 
 

479. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

480. Spermatophyta are characterized by producing:

 
 
 
 

481. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

482. Endemic plants are characterised by their:

 
 
 
 

483. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

484. The chromosomal number in:

 
 
 
 

485. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

488. 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?

 
 
 
 

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

 
 
 
 

490. Pteridophyta are also called:

 
 
 
 

491. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

494. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

499. The sporophyte of Riccia is :

 
 
 
 

500. Siphonogamy is found in:

 
 
 
 

501. Which of the following is true for Selaginella?

 
 
 
 

502. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

506. Protistan algae obtain their food as:

 
 
 
 

507. The microsporophylls on the cone of Cycas are :

 
 
 
 

508. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

511. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

512. Which bacteria convert nitrate into nitrogen?

 
 
 
 

513. In Gymnosperms endosperm is a:

 
 
 
 

514. Mycoplasma contains:

 
 
 
 

515. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

520. Vegetative reproduction in Cycas is by means of :

 
 
 
 

521. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

527. Circular DNA is seen in:

 
 
 
 

528. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

531. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

533. Pasteur is famous for his:

 
 
 
 

534. Each chloroplast in Spirogyra bears :

 
 
 
 

535. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

537. In Cycas:

 
 
 
 

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

 
 
 
 

539. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. Quarantine regulations are concerned with:

 
 
 
 

543. Funaria is a Bryophyta because :

 
 
 
 

544. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

547. The orders generally have the uniform endings:

 
 
 
 

548. The smallest bacterium is:

 
 
 
 

549. Pneumonia is caused by:

 
 
 
 

550. To which class Riccia belongs :

 
 
 
 

551. Which is absent from the xylem of Cycas?

 
 
 
 

552. Milk is converted to curd by:

 
 
 
 

553. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

555. Lichen show :

 
 
 
 

556. Select the wrong statement:

 
 
 
 

557. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

561. Fruits are not found in :

 
 
 
 

562. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

565. The sporangiophores in Rhizopus are:

 
 
 
 

566. Viruses are considered to be:

 
 
 
 

567. Which one of the following statement is wrong?

 
 
 
 

568. Who among the following discovered virus?

 
 
 
 

569. The fungi used as food are:

 
 
 
 

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

 
 
 
 

571. Select the correct statement: (NEET 2016)

 
 
 
 

572. The fungi that grow on wood are called:

 
 
 
 

573. Bryophyta have a special character from other plants:

 
 
 
 

574. Fruits are not found in Cycas because:

 
 
 
 

575. Which of the following applies to Selaginella?

 
 
 
 

576. The smallest unit of classification is:

 
 
 
 

577. The source of litmus is :

 
 
 
 

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

 
 
 
 

579. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

581. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

584. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

586. Vascular tissue is found in :

 
 
 
 

587. Mycoplasma are sensitive to:

 
 
 
 

588. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

591. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

594. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

597. Photosynthetic bacteria have:

 
 
 
 

598. Helotism word is used for the symbiosis between :

 
 
 
 

599. All protozoans possess:

 
 
 
 

600. The similarity between cyanobacteria and bacteria:

 
 
 
 

601. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

603. Most primitive embryophytes are placed in:

 
 
 
 

604. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

606. The Rhizopus gametes are formed in:

 
 
 
 

607. Gametophyte is the main plant body in :

 
 
 
 

608. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

610. In moss, conducting tissue is made up of

 
 
 
 

611. The chloroplast in Ulothrix is :

 
 
 
 

612. Ovules are not found enclosed in ovary in :

 
 
 
 

613. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

616. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

619. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

621. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

623. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

625. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

627. Cycas is:

 
 
 
 

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

 
 
 
 

629. Red rot of sugarcane is caused by :

 
 
 
 

630. Embryophyta includes:

 
 
 
 

631. Most of the algae are :

 
 
 
 

632. Azolla and Salvinia both are:

 
 
 
 

633. Pollination in Cycas takes place by :

 
 
 
 

634. The spur of Pinus roxburghii has :

 
 
 
 

635. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

637. Number of capsomeres forming capsid of TMV is:

 
 
 
 

638. Disease resistant plant varieties can be produced by :

 
 
 
 

639. Who named prion?

 
 
 
 

640. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

644. Which statement is wrong in regard to bacteria?

 
 
 
 

645. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

647. 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:

 
 
 
 

648. Bacteriophages have been used as:

 
 
 
 

649. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

652. Green plants are classified as :

 
 
 
 

653. Anoxygenic photosynthesis occurs in:

 
 
 
 

654. Cellular slime mold is:

 
 
 
 

655. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

658. The roots of Cycas are :

 
 
 
 

659. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

661. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

663. Wine turns sour because of:

 
 
 
 

664. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

666. Saccharomyces ludwigii ascus produces:

 
 
 
 

667. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

670. Climbers are found in genus:

 
 
 
 

671. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

674. Desired type of Cycas can be grown by:

 
 
 
 

675. Gymnosperms could also be called as:

 
 
 
 

676. Triple antigen injection or vaccine are for:

 
 
 
 

677. Azolla growing in paddy fields helps in:

 
 
 
 

678. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

682. Which is a fungicide?

 
 
 
 

683. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

685. Viruses have:

 
 
 
 

686. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

688. Green plants are classified as:

 
 
 
 

689. Lichens reproduce by :

 
 
 
 

690. Small epidermal swellings due to infection are called :

 
 
 
 

691. Saccharomyces is used in:

 
 
 
 

692. In dinoflagellates, the two flagella are:

 
 
 
 

693. Total parasites belong to:

 
 
 
 

694. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

696. Pinus is:

 
 
 
 

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

 
 
 
 

698. The leaves of Funaria are :

 
 
 
 

699. Male gametophyte of Selaginella is found:

 
 
 
 

700. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

703. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

707. Synzoospore is produced in:

 
 
 
 

708. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

710. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

713. Placenta in fern is:

 
 
 
 

714. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

715. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

719. Cocci types of bacteria are:

 
 
 
 

720. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

722. Which is not true for Escherichia coli?

 
 
 
 

723. Most common type of conjugation in Spirogyra is :

 
 
 
 

724. Leprosy is caused by:

 
 
 
 

725. The largest known bacterium is:

 
 
 
 

726. The leafy fern plant represents the:

 
 
 
 

727. Nitrifying bacteria play an important role by converting:

 
 
 
 

728. Discovery of penicillin was based on:

 
 
 
 

729. Water-borne bacterial diseases are:

 
 
 
 

730. Generic name of mango is:

 
 
 
 

731. Soil fertility is lost by the activities of:

 
 
 
 

732. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

736. Sporophyte of Funaria is :

 
 
 
 

737. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

741. Which of the following are included in Tracheophyta?

 
 
 
 

742. Which is not found in bacteria?

 
 
 
 

743. The sori in Dryopteris are found on:

 
 
 
 

744. Smallpox is caused by:

 
 
 
 

745. Which of the following statement is correct?

 
 
 
 

746. Parmelia belongs to :

 
 
 
 

747. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

749. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

753. How is moss different from fern?

 
 
 
 

754. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

757. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

758. In moss, reduction division occurs in :

 
 
 
 

759. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

763. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

765. Roots are absent in :

 
 
 
 

766. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

768. Photoautotrophic bacteria have:

 
 
 
 

769. . Tapetum develops in:

 
 
 
 

770. Lichens are the indicator of pollution :

 
 
 
 

771. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

773. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

777. Late blight of potato is caused by:

 
 
 
 

778. In Cycas microsporangia are borne on:

 
 
 
 

779. The archegonia in Selaginella develop on:

 
 
 
 

780. Ergot is obtained from :

 
 
 
 

781. Ovules are not found enclosed in ovary of:

 
 
 
 

782. Which group of algae have an incipient nucleus?

 
 
 
 

783. Proembryo in Pinus is :

 
 
 
 

784. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

787. Agar-agar is obtained from:

 
 
 
 

788. Nitrogen-fixing bacteria may be located:

 
 
 
 

789. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. The young leaves of Cycas have :

 
 
 
 

793.

794. Fern phloem lacks:

 
 
 
 

795. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

797. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

799. Mycoplasmas are not viruses in nature because:

 
 
 
 

800. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

802. Which part of Riccia bears nurse cells?

 
 
 
 

803. All archaebacteria lack:

 
 
 
 

804. Cryptogams include :

 
 
 
 

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

 
 
 
 

806. Streptomyces falls under:

 
 
 
 

807. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

809. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

811. Lichens reproduce by :

 
 
 
 

812. 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:

 
 
 
 

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

 
 
 
 

814. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

816. 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:

 
 
 
 

817. The fungi are usually:

 
 
 
 

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

 
 
 
 

819. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

821. Pythium debaryanum is the causative agent of:

 
 
 
 

822. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

824. Metulae are found in:

 
 
 
 

825. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

827. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

829. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

831. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

832. Economic importance of bacteria lies in their being:

 
 
 
 

833. The fern plant is:

 
 
 
 

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

 
 
 
 

835. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

837. Nannandria are:

 
 
 
 

838. In Pteris, the archegonia are present:

 
 
 
 

839. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

843. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

847. Ulothrix produces :

 
 
 
 

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

 
 
 
 

849. Mixed cropping helps :

 
 
 
 

850. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

851. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

853. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

855. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

858. Pollination drop is:

 
 
 
 

859.

860. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

863. Funaria is :

 
 
 
 

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