Quiz_Random

1. The orders generally have the uniform endings:

 
 
 
 

2. The young leaves of Cycas have :

 
 
 
 

3. Which of the following are included in Tracheophyta?

 
 
 
 

4. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

8. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. The megasporangium of Selaginella is:

 
 
 
 

15. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

16. The vascular bundles of Cycas stem are :

 
 
 
 

17. Which of the following is true for Selaginella?

 
 
 
 

18. Funaria is :

 
 
 
 

19. Absorptive nutrition is:

 
 
 
 

20. The photosynthetic protists are:

 
 
 
 

21. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

26. Protozoans are considered animals because these are:

 
 
 
 

27. Photosynthetic protists belong to:

 
 
 
 

28. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. Lichen show :

 
 
 
 

36. The leafy fern plant represents the:

 
 
 
 

37. Infective part of virus was discovered by:

 
 
 
 

38. Some bacteria cannot be killed easily because of:

 
 
 
 

39. Chemosynthetic bacteria are:

 
 
 
 

40. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

43. Oswald Tippo’s classification was based on :

 
 
 
 

44. Reproduction in Rhizopus is:

 
 
 
 

45. Who discovered heterothallism in fungi?

 
 
 
 

46. Bryophyta have been placed in cryptogams because:

 
 
 
 

47. The tallest moss in the world is :

 
 
 
 

48. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

50. Psilotum is:

 
 
 
 

51. Pinus microsporophyll bears:

 
 
 
 

52. Enzymes are absent in:

 
 
 
 

53. The sporophyte of Riccia is :

 
 
 
 

54. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

61. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

62. Most of the algae are :

 
 
 
 

63. The archegonia in Selaginella develop on:

 
 
 
 

64. Which of the following shows heterotrichous habit?

 
 
 
 

65. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

67. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

69. The spur of Pinus roxburghii has :

 
 
 
 

70. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Coenogamete is found in:

 
 
 
 

75. Where does meiosis occur in yeast?

 
 
 
 

76. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

78. Lichens are pioneers of vegetation in a :

 
 
 
 

79. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Black rust of wheat is caused by:

 
 
 
 

84. Acellular slime mold is/are:

 
 
 
 

85. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

87. Photoautotrophic bacteria have:

 
 
 
 

88. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

90. 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?

 
 
 
 

91. Which fixes atmospheric nitrogen?

 
 
 
 

92. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

94. Viroids have:

 
 
 
 

95. All archaebacteria lack:

 
 
 
 

96. What is the role of nitrifying bacteria?

 
 
 
 

97. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

100. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

102. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

107. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

110. Pinus gerardiana is :

 
 
 
 

111. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

113. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

115. Red rot of sugarcane is caused by :

 
 
 
 

116. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

118. The gametophyte of fern bears:

 
 
 
 

119. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

120. Cycas plant in appearance resembles :

 
 
 
 

121. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

124. Mucilaginous canals in Cycas are found in :

 
 
 
 

125. Water-net is the name of:

 
 
 
 

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

 
 
 
 

127. What is special feature of fern archegonia?

 
 
 
 

128. Oswald Tippo’s classification is:

 
 
 
 

129. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

131. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

133. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

135. Yeast grows more rapidly in:

 
 
 
 

136. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

138. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. Cycas is different from mango in :

 
 
 
 

142. Genetic material of TMV is:

 
 
 
 

143. Circular DNA is seen in:

 
 
 
 

144. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

146. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

151. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

153. Lichens form the first community in

 
 
 
 

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

 
 
 
 

155. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

159. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

161. Ovules are not found enclosed in ovary in :

 
 
 
 

162. Vascular cryptogams is the term used for:

 
 
 
 

163. 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:

 
 
 
 

164. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

166. Among the algae kelps are :

 
 
 
 

167. The ferns are usually found:

 
 
 
 

168. The role of meiosis is for:

 
 
 
 

169. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

171. Indusium in Dryopteris is:

 
 
 
 

172. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

175. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

177. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

179. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

181. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

183. The tree fern is:

 
 
 
 

184. Quarantine regulations are concerned with:

 
 
 
 

185. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

187. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

189. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

191. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

192. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

195. Lichens reproduce by :

 
 
 
 

196. Ergot is obtained from :

 
 
 
 

197. Saccharomyces is used in:

 
 
 
 

198. Heterotrichous habit means :

 
 
 
 

199. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

201. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

203. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. Nitrifying bacteria play an important role by converting:

 
 
 
 

207. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

209. Pollination in Pinus is :

 
 
 
 

210. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

212. Roots are absent in :

 
 
 
 

213. Antibiotics cure the disease by:

 
 
 
 

214. In Cycas microsporangia are borne on:

 
 
 
 

215. Most primitive group of vascular plants are:

 
 
 
 

216. What is streptomycin?

 
 
 
 

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

 
 
 
 

218. Helotism word is used for the symbiosis between :

 
 
 
 

219. Centric discoid form of diatom is:

 
 
 
 

220. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

224. The antibiotic is obtained from:

 
 
 
 

225. The nucleus of bacteria is:

 
 
 
 

226. Which part of Riccia bears nurse cells?

 
 
 
 

227. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

230. Heterocysts are found in :

 
 
 
 

231. Simple polyembryony is found in :

 
 
 
 

232. Late blight of potato is caused by:

 
 
 
 

233. Most primitive embryophytes are placed in:

 
 
 
 

234. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

237. Heterosporous pteridophytes always form:

 
 
 
 

238. Which of the following have a prokaryotic cell?

 
 
 
 

239. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

242. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

244. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

247. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

249. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

251. Iodine is obtained from:

 
 
 
 

252. 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:

 
 
 
 

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

 
 
 
 

254. Pteridophytes are also known as :

 
 
 
 

255. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

257. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

258. Which causes red tide?

 
 
 
 

259. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

263. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

268. Each chloroplast in Spirogyra bears :

 
 
 
 

269. Who discovered streptomycin?

 
 
 
 

270. Lichens show :

 
 
 
 

271. Gram stain is used to:

 
 
 
 

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

 
 
 
 

273. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

275. The prothallus of fern represents the plant:

 
 
 
 

276. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

278. TMV was isolated in crystalline form by:

 
 
 
 

279. Spirogyra differs from moss protonema in having :

 
 
 
 

280. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

285. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

287. The truncated cone of HIV consists of:

 
 
 
 

288. Which of the following is a heterosporous pteridophyte?

 
 
 
 

289. All algae have:

 
 
 
 

290. Viruses have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

293. Which of the following is true for viruses?

 
 
 
 

294. Germination of the seed of Pinus is :

 
 
 
 

295. Acetobacter is useful in:

 
 
 
 

296. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

299. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

305. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

311. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

314. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

316. 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?

 
 
 
 

317. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

320. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

323. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

325. Bacteria growing on synthetic medium are called:

 
 
 
 

326. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

328. The sporangium of fern contains nearly:

 
 
 
 

329. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

331. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

333. Lichens are ecologically important because :

 
 
 
 

334. Virion refers to:

 
 
 
 

335. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

338. The most primitive vascular plants is:

 
 
 
 

339. Male gametes in Dryopteris are:

 
 
 
 

340.

341. Embryophyta includes :

 
 
 
 

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

 
 
 
 

343. The coralloid roots are :

 
 
 
 

344. In Gymnosperms endosperm is a:

 
 
 
 

345. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. In tracheophyta:

 
 
 
 

349. Proembryo in Pinus is :

 
 
 
 

350. Black rust of wheat is caused by:

 
 
 
 

351. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

353. The fungi are mostly:

 
 
 
 

354. In Cycas which structure is equivalent to stamen?

 
 
 
 

355. Majority of lichens are :

 
 
 
 

356. Ovary is absent in :

 
 
 
 

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

 
 
 
 

358. Mycoplasma contains:

 
 
 
 

359. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

361. Fruits are not found in :

 
 
 
 

362. Facultative parasite is:

 
 
 
 

363. Redness of red sea is due to :

 
 
 
 

364. Multicellular and jacketed sex organs are found in :

 
 
 
 

365. The mycelium of Rhizopus is:

 
 
 
 

366. Select the wrong statement:

 
 
 
 

367. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

371. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

373. Placenta in fern is:

 
 
 
 

374. Red rot of sugarcane is caused by :

 
 
 
 

375. Bacteria differ from viruses in being sensitive to:

 
 
 
 

376. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

384. Which of the following is a parasitic algae?

 
 
 
 

385. Which of the following applies to Selaginella?

 
 
 
 

386. Yeast is a source of:

 
 
 
 

387. Which condition is found in Cycas?

 
 
 
 

388. Germ theory of disease was proposed by:

 
 
 
 

389. Pythium debaryanum is the causative agent of:

 
 
 
 

390. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

392. Which of the following is a monocot?

 
 
 
 

393. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

397. 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:

 
 
 
 

398. Sometimes the bacterial cell is enclosed in:

 
 
 
 

399. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

401. Bacteria are placed under:

 
 
 
 

402. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

404. Little leaf disease of Brinjal is caused by:

 
 
 
 

405. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

407. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

409. The lichens growing on rocks are called :

 
 
 
 

410. Ovary is absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Which bacteria convert nitrate into nitrogen?

 
 
 
 

414. The two conjugating gametangia of Rhizopus are:

 
 
 
 

415. Most resistant spore in bacteria is:

 
 
 
 

416. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

418. In binomial system most of the words are:

 
 
 
 

419. What is absent in Deuteromycetes?

 
 
 
 

420. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

422. Economic importance of bacteria lies in their being:

 
 
 
 

423. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

425. Cellular slime mold is:

 
 
 
 

426. Clostridium can:

 
 
 
 

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

 
 
 
 

428. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

430. Funaria is a Bryophyta because :

 
 
 
 

431. Club moss is the common name of :

 
 
 
 

432. Longest known virus is:

 
 
 
 

433. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. Rhizopus belongs to:

 
 
 
 

438. Mycoplasmas are not viruses in nature because:

 
 
 
 

439. Small epidermal swellings due to infection are called :

 
 
 
 

440. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

442. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

444. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

446. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

448. Heterospory is the production of:

 
 
 
 

449. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

451. Synzoospore is produced in:

 
 
 
 

452. Most of the lichens are composed of :

 
 
 
 

453. In moss, sporophyte is formed on:

 
 
 
 

454. The mode of nutrition of bacteria is usually:

 
 
 
 

455. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

457. Which among the following is a shrub?

 
 
 
 

458. Discovery of penicillin was based on:

 
 
 
 

459. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

461. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. Which of the following statements is not correct?

 
 
 
 

466. Cryptogams include :

 
 
 
 

467. Saccharomyces is well known for:

 
 
 
 

468. Triple antigen injection or vaccine are for:

 
 
 
 

469. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

472. Mixed cropping helps :

 
 
 
 

473. Bacteria were first discovered by:

 
 
 
 

474. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

476. The lambda phase is a:

 
 
 
 

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

 
 
 
 

478. What is a vector?

 
 
 
 

479. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

482. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

484. Mycoplasma was discovered by:

 
 
 
 

485. Gymnosperms could also be called as:

 
 
 
 

486. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

488. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

491. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

493. Streptomyces falls under:

 
 
 
 

494. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

499. Which is the correct statement about Selaginella?

 
 
 
 

500. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

501. 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:

 
 
 
 

502. The fungi that grow on wood are called:

 
 
 
 

503. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

505. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

506. Fern prothallus produces:

 
 
 
 

507. Most common type of conjugation in Spirogyra is :

 
 
 
 

508. Penicillin was discovered by:

 
 
 
 

509. E coli is a:

 
 
 
 

510. The order generally ends with:

 
 
 
 

511. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

513. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

515. Metulae are found in:

 
 
 
 

516. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. The term stele was given by:

 
 
 
 

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

 
 
 
 

523. The fungi used as food are:

 
 
 
 

524. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

526. All protozoans possess:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

531. Who among the following discovered virus?

 
 
 
 

532. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

534. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

538. Which is absent from the xylem of Cycas?

 
 
 
 

539. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

541. In moss, calyptra is formed from:

 
 
 
 

542. Pinus is:

 
 
 
 

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

 
 
 
 

544. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

546. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

548. The sporangia of Selaginella are attached:

 
 
 
 

549. Total parasites belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

553. Sporophyte of fern is:

 
 
 
 

554. Sporophyte of Funaria is :

 
 
 
 

555. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

557. Which group of algae have an incipient nucleus?

 
 
 
 

558. Rhizoids of Riccia are :

 
 
 
 

559. Cyanophage is a virus that attacks:

 
 
 
 

560. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

563. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

565. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

566. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

570. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

572. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

574. The ascus of yeast contains:

 
 
 
 

575. The spermatozoids of Cycas are :

 
 
 
 

576. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

580. Pasteurization of milk involves heating for:

 
 
 
 

581. Typhoid in man is caused by:

 
 
 
 

582. Who discovered cyanophages?

 
 
 
 

583. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

586. Aflatoxin is produced as a product in :

 
 
 
 

587. Which is not found in bacteria?

 
 
 
 

588. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

591. Vascular cryptogam is the term used for :

 
 
 
 

592. The disease symptom necrosis refers to :

 
 
 
 

593. The seedless plants which possess vascular tissues are:

 
 
 
 

594. Green plants are classified as:

 
 
 
 

595. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

597. An Hfr bacterium is one that contains:

 
 
 
 

598. Which is a tautonym?

 
 
 
 

599. Which have the largest antherozoid?

 
 
 
 

600. Maximum diversity of life forms occurs in :

 
 
 
 

601. Embryophyta includes:

 
 
 
 

602. Common phycobiont in a lichen is :

 
 
 
 

603. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

604. Some biologists have used the term Mycetozoa for:

 
 
 
 

605. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

608. The first to isolate a plant virus was:

 
 
 
 

609. Siphonogamy is found in:

 
 
 
 

610. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

612. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

614. . Tapetum develops in:

 
 
 
 

615. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. Ectocarpus produces:

 
 
 
 

619. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

622. Meiosis in Ulothrix takes place:

 
 
 
 

623. The group algae possesses representatives belonging to kingdom:

 
 
 
 

624. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

626. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

630.

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

 
 
 
 

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

 
 
 
 

633. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

635. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

637. Plasmids are:

 
 
 
 

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

 
 
 
 

639. Endemic plants are characterised by their:

 
 
 
 

640. LSD is:

 
 
 
 

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

 
 
 
 

642. Select the wrong statement:

 
 
 
 

643. The antherozoids of Funaria are :

 
 
 
 

644. Late blight of potato is caused by :

 
 
 
 

645. The microsporophylls on the cone of Cycas are :

 
 
 
 

646. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

648. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

650. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

652. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

655. Polystelic condition is found in:

 
 
 
 

656.

657. The Rhizopus is:

 
 
 
 

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

 
 
 
 

659. Smut of maize is caused by :

 
 
 
 

660.

 

661. Fern prothallus is:

 
 
 
 

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

 
 
 
 

663. Virus and bacteriophage are made-up of:

 
 
 
 

664. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

666. Rhizophore of Selaginella is:

 
 
 
 

667. Fruits are not found in:

 
 
 
 

668. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

670. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

672. Fertility of the soil is increased by:

 
 
 
 

673. Fruits are not found in Cycas because:

 
 
 
 

674. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

679. 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:

 
 
 
 

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

 
 
 
 

681. Bacteria are considered to be plants because they:

 
 
 
 

682. Kuru, a human disease is caused by:

 
 
 
 

683. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

685. John Hutchinson divided dicots into two divisions:

 
 
 
 

686. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

692. Green plants are classified as :

 
 
 
 

693. The rhizoids of Funaria are :

 
 
 
 

694. Isomorphic type alternation of generation is found in:

 
 
 
 

695. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

697. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

707. Choose the correct statement about Spirogyra:

 
 
 
 

708. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

710. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

715. Mostly type of zygospore in Ulothrix is:

 
 
 
 

716. The source of litmus is :

 
 
 
 

717. The teeth of peristome of Funaria are :

 
 
 
 

718. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

720. Woody climbers are known as :

 
 
 
 

721. Mycoplasma are sensitive to:

 
 
 
 

722. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

724. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

726. 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:

 
 
 
 

727. The fern plant is:

 
 
 
 

728. Streptomycin is obtained from:

 
 
 
 

729. 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?

 
 
 
 

730. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

733. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

735. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

737. Cycas is:

 
 
 
 

738. The leaves of Funaria are :

 
 
 
 

739. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

742. Disease resistant plant varieties can be produced by :

 
 
 
 

743. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

745. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

748. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

749. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

751. 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:

 
 
 
 

752. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

754. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

756. Black rust of wheat is caused by:

 
 
 
 

757. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

759. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

760. The chromosomal number in:

 
 
 
 

761. Reproduction in Cycas takes place by :

 
 
 
 

762. Liverworts are included in :

 
 
 
 

763. Embryo formation is not known in :

 
 
 
 

764. Bacteriophages have been used as:

 
 
 
 

765. Ulothrix produces :

 
 
 
 

766. Methanogens belong to:

 
 
 
 

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

 
 
 
 

768. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

775. Selaginella differs from Moss in having:

 
 
 
 

776. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

779. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

781. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

783. Detailed study of bacteriophage was made by:

 
 
 
 

784. Which statement is wrong in regard to bacteria?

 
 
 
 

785. Which organisms are the oldest life forms?

 
 
 
 

786. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

789. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. Why is Cycas called a living fossil?

 
 
 
 

795. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

798. Sleeping sickness disease in man is caused by:

 
 
 
 

799. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

803. Bacteria which are spherical are called:

 
 
 
 

804. Most appropriate word for protozoans is:

 
 
 
 

805. An alga which is rich in proteins:

 
 
 
 

806. Select the correct statement: (NEET 2016)

 
 
 
 

807. Lichens are indicators of :

 
 
 
 

808. Meristele of fern is:

 
 
 
 

809. Winged pollen grains are found in :

 
 
 
 

810. The zoospores of Ulothrix are :

 
 
 
 

811. Pollination drop is:

 
 
 
 

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

 
 
 
 

813. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

815. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

817. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

818. What are plasmids?

 
 
 
 

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

 
 
 
 

820. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

823. How is moss different from fern?

 
 
 
 

824. Seeds are characteristically found in:

 
 
 
 

825. Cell walls of Gram-positive bacteria contain:

 
 
 
 

826. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

829. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

831. Anoxygenic photosynthesis occurs in:

 
 
 
 

832. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

834. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

836. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. The phloem of vascular system of Cycas is :

 
 
 
 

840. The Rhizopus gametes are formed in:

 
 
 
 

841. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

843. The disease apple scab is caused by:

 
 
 
 

844. Cycas is :

 
 
 
 

845. Some diseases caused by bacteria are:

 
 
 
 

846. 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?

 
 
 
 

847. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. Mycoplasma is different from bacteria due to:

 
 
 
 

851. Number of capsomeres forming capsid of TMV is:

 
 
 
 

852. Which of the following is sago palm?

 
 
 
 

853. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

855. Which one of the following is a monocot?

 
 
 
 

856. In Cycas:

 
 
 
 

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

 
 
 
 

858. Spermatophyta are characterized by producing:

 
 
 
 

859. The gametophyte of fern is as:

 
 
 
 

860. Climbers are found in genus:

 
 
 
 

861. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

863. Yeast belongs to class:

 
 
 
 

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