Quiz_Random

1. Most primitive group of vascular plants are:

 
 
 
 

2. Which of the following is a monocot?

 
 
 
 

3. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

5. The Rhizopus gametes are formed in:

 
 
 
 

6. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. How a fern differs from a moss?

 
 
 
 

12. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

14. Which of the following is true for viruses?

 
 
 
 

15. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

18. The fungi are usually:

 
 
 
 

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

 
 
 
 

20. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Which organisms are the oldest life forms?

 
 
 
 

25. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

27. What are Cyanobacteria?

 
 
 
 

28. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

30. Mycoplasma is different from bacteria due to:

 
 
 
 

31. Which one of the following is a monocot?

 
 
 
 

32. Which of the following shows heterotrichous habit?

 
 
 
 

33. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

35. Mucilaginous canals in Cycas are found in :

 
 
 
 

36. Streptomycin is obtained from:

 
 
 
 

37. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

38. Pseudomycelium is found in:

 
 
 
 

39. Which of the following are included in Tracheophyta?

 
 
 
 

40. The leaf of Cycas shows:

 
 
 
 

41. Lichens form the first community in

 
 
 
 

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

 
 
 
 

43. Methanogens belong to:

 
 
 
 

44. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

46. Embryophyta includes :

 
 
 
 

47. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

49. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

52. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

54. Where does meiosis occur in yeast?

 
 
 
 

55. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

57. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

59. Woody climbers are known as :

 
 
 
 

60. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

62. Bryophyta have a special character from other plants:

 
 
 
 

63. Fruits are not found in Cycas because:

 
 
 
 

64. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Azolla and Salvinia both are:

 
 
 
 

68. In tracheophyta:

 
 
 
 

69. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

71. In Funaria, calyptra is derived from :

 
 
 
 

72. The spur of Pinus roxburghii has :

 
 
 
 

73. The chief characteristic of class Ascomycetes is:

 
 
 
 

74. 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:

 
 
 
 

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

 
 
 
 

76. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. Penicillin is obtained from:

 
 
 
 

83. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

85. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. The gametophyte produced by apospory is :

 
 
 
 

89. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

93. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

95. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

99. 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:

 
 
 
 

100.

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

 
 
 
 

102. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

104. The largest alga is:

 
 
 
 

105. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

107. To which country Antony van Leeuwenhoek belong?

 
 
 
 

108. The disease symptom necrosis refers to :

 
 
 
 

109. The coralloid roots are :

 
 
 
 

110. Gymnosperms could also be called as:

 
 
 
 

111. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

114. Who among the following discovered virus?

 
 
 
 

115. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

117. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

120. 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:

 
 
 
 

121. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

124. True sexuality is not found in:

 
 
 
 

125. The rhizoids of Funaria are :

 
 
 
 

126. Infective part of virus was discovered by:

 
 
 
 

127. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

130. Spermatophyta are characterized by producing:

 
 
 
 

131. Most primitive embryophytes are placed in:

 
 
 
 

132. Cyathia is characterized by:

 
 
 
 

133. Fruiting body of lichens is :

 
 
 
 

134. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

136. Bacteria differ from viruses in being sensitive to:

 
 
 
 

137. Which is a tautonym?

 
 
 
 

138. The prothallus of fern is:

 
 
 
 

139. Heterocysts are found in :

 
 
 
 

140. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

142. The truncated cone of HIV consists of:

 
 
 
 

143. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

145. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

148. Psilotum is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

151. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

156. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

158. Rice, pea, potato are :

 
 
 
 

159. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

161. The sporangiophores in Rhizopus are:

 
 
 
 

162. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

167. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

169. Green plants are classified as:

 
 
 
 

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

 
 
 
 

171. Choose the correct statement about Spirogyra:

 
 
 
 

172. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

174. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

176. Proembryo in Pinus is :

 
 
 
 

177. Cocci types of bacteria are:

 
 
 
 

178. Diphtheria is caused by:

 
 
 
 

179. Cap cells are found in the filament of:

 
 
 
 

180. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

183. Viruses have:

 
 
 
 

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

 
 
 
 

185. The fungi that grow on wood are called:

 
 
 
 

186. Lichens are the indicator of pollution :

 
 
 
 

187. In Cycas:

 
 
 
 

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

 
 
 
 

189. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

191. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

193. Bivalved siliceous shell or frustule occur in:

 
 
 
 

194. In Gymnocarpeae the fruiting body is :

 
 
 
 

195. The spermatozoids of Cycas are :

 
 
 
 

196. The tree fern is:

 
 
 
 

197. Select the wrong statement:

 
 
 
 

198. Small epidermal swellings due to infection are called :

 
 
 
 

199. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

201. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

203. Pasteurization of milk involves heating for:

 
 
 
 

204. What is the role of nitrifying bacteria?

 
 
 
 

205. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

207. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

209. Smallpox is caused by:

 
 
 
 

210. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

212. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

215. Ectocarpus produces:

 
 
 
 

216. Black rust of wheat is caused by:

 
 
 
 

217. Siphonogamy is found in:

 
 
 
 

218. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

220. Clostridium can:

 
 
 
 

221. Viruses are commonly transmitted in plants through:

 
 
 
 

222. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

224. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

227. Desired type of Cycas can be grown by:

 
 
 
 

228. To which class Riccia belongs :

 
 
 
 

229. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

230. In Gymnosperms endosperm is a:

 
 
 
 

231. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

233. Placenta in fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

236. The order generally ends with:

 
 
 
 

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

 
 
 
 

238. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

240. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

242. The term stele was given by:

 
 
 
 

243. Rhizoids of Riccia are :

 
 
 
 

244. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

247. The antibiotic is obtained from:

 
 
 
 

248. Sporophyte of Funaria is :

 
 
 
 

249. Viroids have:

 
 
 
 

250. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

253. Spermatophyta are characterized by producing:

 
 
 
 

254. Protozoans are considered animals because these are:

 
 
 
 

255. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

259. Which of the following is true for Selaginella?

 
 
 
 

260. Which of the following is a heterosporous pteridophyte?

 
 
 
 

261. Fruits are not found in:

 
 
 
 

262. Water-net is the name of:

 
 
 
 

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

 
 
 
 

264. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

266. Triple antigen injection or vaccine are for:

 
 
 
 

267. Rhizopus belongs to:

 
 
 
 

268. Cycas is:

 
 
 
 

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

 
 
 
 

270. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

274. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

276. Bacteria which are spherical are called:

 
 
 
 

277. What is absent in Deuteromycetes?

 
 
 
 

278. Metulae are found in:

 
 
 
 

279. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

281. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

284. Winged pollen grains are found in :

 
 
 
 

285. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

287. Most appropriate word for protozoans is:

 
 
 
 

288. LSD is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

292. 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?

 
 
 
 

293. 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?

 
 
 
 

294. Pollination in Pinus is :

 
 
 
 

295. The fern plant is:

 
 
 
 

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

 
 
 
 

297. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

302. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

303. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

305. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

307. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

310.

311. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

321. Chemosynthetic bacteria are:

 
 
 
 

322. Red rot of sugarcane is caused by :

 
 
 
 

323. All protozoans possess:

 
 
 
 

324. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

327. The smallest unit of classification is:

 
 
 
 

328. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

331. The archegonia of Selaginella are differentiated by:

 
 
 
 

332. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

337. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

339. The teeth of peristome of Funaria are :

 
 
 
 

340. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

344. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

347. Winged seeds are found in :

 
 
 
 

348. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

351. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

355. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

357. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

359. Ulothrix produces :

 
 
 
 

360. Which is not true for Escherichia coli?

 
 
 
 

361. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

363. Late blight of potato is caused by :

 
 
 
 

364. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

366. Absorptive nutrition is:

 
 
 
 

367. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

369. Agar-agar is obtained from:

 
 
 
 

370. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

373. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. Bacteriophage consists of:

 
 
 
 

379. Heterotrichous habit means :

 
 
 
 

380. Acetobacter is useful in:

 
 
 
 

381. An alga which is rich in proteins:

 
 
 
 

382. Which group of algae have an incipient nucleus?

 
 
 
 

383. Saccharomyces is used in:

 
 
 
 

384. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

386. Lichens are pioneers of vegetation in a :

 
 
 
 

387. What are plasmids?

 
 
 
 

388. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

391. The chromosomal number in:

 
 
 
 

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

 
 
 
 

393. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

395. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

398. Fruits are not found in :

 
 
 
 

399. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

401. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

403. The archegonia in Selaginella develop on:

 
 
 
 

404. The gametophyte of fern is as:

 
 
 
 

405. In moss, conducting tissue is made up of

 
 
 
 

406. The mode of nutrition of bacteria is usually:

 
 
 
 

407. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

411. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

415. Cycas is :

 
 
 
 

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

 
 
 
 

417. Green plants are classified as :

 
 
 
 

418. Iodine is obtained from :

 
 
 
 

419. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

422. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

424. Detailed study of bacteriophage was made by:

 
 
 
 

425. Pneumonia is caused by:

 
 
 
 

426. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

428. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

430. Which is a redwood tree?

 
 
 
 

431. The lambda phase is a:

 
 
 
 

432. Germination of the seed of Pinus is :

 
 
 
 

433. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

435. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

437. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

439. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

441. Pinus is:

 
 
 
 

442. Standard size of a herbarium sheet is:

 
 
 
 

443. Majority of lichens are :

 
 
 
 

444. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

446. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

448. The sporangia of Selaginella are attached:

 
 
 
 

449. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

450. The seedless plants which possess vascular tissues are:

 
 
 
 

451. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

454. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

457. John Hutchinson divided dicots into two divisions:

 
 
 
 

458. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

459. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

461. Interferon is a:

 
 
 
 

462. In moss, peristomial teeth are:

 
 
 
 

463. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

465. What is streptomycin?

 
 
 
 

466. Leprosy is caused by:

 
 
 
 

467. Enteric bacteria are those bacteria that live:

 
 
 
 

468. Disease resistant plant varieties can be produced by :

 
 
 
 

469. The leaves of Funaria are :

 
 
 
 

470. Synzoospore is produced in:

 
 
 
 

471. The first to isolate a plant virus was:

 
 
 
 

472. Pythium debaryanum is the causative agent of:

 
 
 
 

473. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

475. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478. The sporangium of fern contains nearly:

 
 
 
 

479. Sexual reproduction of lichen is due to :

 
 
 
 

480. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

484. Maximum diversity of life forms occurs in :

 
 
 
 

485. Male gametophyte of Selaginella is found:

 
 
 
 

486. The fungi used as food are:

 
 
 
 

487. Quarantine regulations are concerned with:

 
 
 
 

488. Aflatoxin is produced as a product in :

 
 
 
 

489. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

495. Antibiotics cure the disease by:

 
 
 
 

496. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

500. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

502. Roots are absent in :

 
 
 
 

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

 
 
 
 

504. What is special feature of fern archegonia?

 
 
 
 

505. Iodine is obtained from:

 
 
 
 

506. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

508. Some bacteria cannot be killed easily because of:

 
 
 
 

509. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

513. Pollination drop is:

 
 
 
 

514. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

515. The ascus of yeast contains:

 
 
 
 

516. Facultative saprophyte is:

 
 
 
 

517. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

519. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

522. Photosynthetic bacteria have:

 
 
 
 

523. In Cycas which structure is equivalent to stamen?

 
 
 
 

524. Yeast is a source of:

 
 
 
 

525. Why is Cycas called a living fossil?

 
 
 
 

526. The most important property of yeast is:

 
 
 
 

527. Facultative parasite is:

 
 
 
 

528. Chemosynthetic bacteria are:

 
 
 
 

529. Mixed cropping helps :

 
 
 
 

530. The upper region of moss capsule is :

 
 
 
 

531. Lichens reproduce by :

 
 
 
 

532. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

534. In Selaginella, the microsporangia are:

 
 
 
 

535. 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:

 
 
 
 

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

 
 
 
 

537. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

539. Downy mildew disease is caused by :

 
 
 
 

540. Bentham and Hooker placed gymnosperms:

 
 
 
 

541. Linnaeus is credited with introducing:

 
 
 
 

542. Which of the following does not contain chlorophyll?

 
 
 
 

543. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

547. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

549. Ovary is absent in :

 
 
 
 

550. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

551. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

553. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

555. Funaria is :

 
 
 
 

556. Which is a gametophytic tissue?

 
 
 
 

557. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

559. Cellular slime mold is:

 
 
 
 

560.

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

 
 
 
 

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

 
 
 
 

563.

 

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

 
 
 
 

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

 
 
 
 

566. Discovery of penicillin was based on:

 
 
 
 

567. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

569. The middle sterile part of capsule is called:

 
 
 
 

570. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

574. Lichens show :

 
 
 
 

575. Generic name of mango is:

 
 
 
 

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

 
 
 
 

577. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

579. Germ theory of disease was proposed by:

 
 
 
 

580. Asexual reproductive body of Volvox is called:

 
 
 
 

581. In moss, sporophyte is formed on:

 
 
 
 

582. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

584. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

586. Vascular cryptogam is the term used for :

 
 
 
 

587. Most resistant spore in bacteria is:

 
 
 
 

588. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

590. Virion refers to:

 
 
 
 

591. Ovules are not found enclosed in ovary of:

 
 
 
 

592. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

595. Embryophyta includes:

 
 
 
 

596. Tautonyms are illegitimate in:

 
 
 
 

597. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

598. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

600. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

605. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

608. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

611. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

613. The role of meiosis is for:

 
 
 
 

614. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

616. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

621. Pinus microsporophyll bears:

 
 
 
 

622. The Rhizopus is:

 
 
 
 

623. In binomial system most of the words are:

 
 
 
 

624. Lichen show :

 
 
 
 

625. The orders generally have the uniform endings:

 
 
 
 

626. Cell walls of Gram-positive bacteria contain:

 
 
 
 

627. 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?

 
 
 
 

628. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

629. In Cycas microsporangia are borne on:

 
 
 
 

630. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

632. Reproduction in Cycas takes place by :

 
 
 
 

633. Coenogamete is found in:

 
 
 
 

634. Liverworts are included in :

 
 
 
 

635. Plasmids are:

 
 
 
 

636. Typhoid in man is caused by:

 
 
 
 

637. Diploxylic vascular bundles are found in:

 
 
 
 

638. In Herpes virus DNA is:

 
 
 
 

639. Who discovered cyanophages?

 
 
 
 

640. Fern plants are:

 
 
 
 

641. Little leaf disease of Brinjal is caused by:

 
 
 
 

642. One of the distinctive feature of Spirogyra is :

 
 
 
 

643. Rhizopus and yeast are usually:

 
 
 
 

644. Rhizophore of Selaginella is:

 
 
 
 

645. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

647. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

649. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

651. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

656. The prothallus of fern represents the plant:

 
 
 
 

657. Male gametes in Dryopteris are:

 
 
 
 

658. The megasporangium of Selaginella is:

 
 
 
 

659. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

663. The development of sporangium in Selaginella is:

 
 
 
 

664. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

666. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

668. Some diseases caused by bacteria are:

 
 
 
 

669. Funaria can be differentiated from Cycas :

 
 
 
 

670. Cycas plant in appearance resembles :

 
 
 
 

671. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

673. White rust of crucifers is caused by:

 
 
 
 

674. Cyanophage is a virus that attacks:

 
 
 
 

675. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

677. Funaria is :

 
 
 
 

678. Mycoplasma are:

 
 
 
 

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

 
 
 
 

680. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

682. All algae have:

 
 
 
 

683. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. Milk is converted to curd by:

 
 
 
 

687. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

689. The photosynthetic protists are:

 
 
 
 

690. How is moss different from fern?

 
 
 
 

691. Each chloroplast in Spirogyra bears :

 
 
 
 

692. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

694. Gram stain is used to:

 
 
 
 

695. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

697. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

699. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

701. Black rust of wheat is caused by:

 
 
 
 

702. The chloroplast of Chlamydomonas are:

 
 
 
 

703. Selaginella differs from Moss in having:

 
 
 
 

704. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

706. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

708. Ergot is obtained from :

 
 
 
 

709. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

711. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

713. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

715. Special feature of pollen grains of Pinus is :

 
 
 
 

716. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

718. All archaebacteria lack:

 
 
 
 

719. 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:

 
 
 
 

720. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

728. Transfusion tissue is present in the leaflet of:

 
 
 
 

729. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

730. Most primitive kind of flower is represented by:

 
 
 
 

731. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

733. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

735. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

740. The fungi are mostly:

 
 
 
 

741. The roots of Cycas are :

 
 
 
 

742. Mostly type of zygospore in Ulothrix is:

 
 
 
 

743. Anoxygenic photosynthesis occurs in:

 
 
 
 

744. 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:

 
 
 
 

745. Total parasites belong to:

 
 
 
 

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

 
 
 
 

747. Which is the correct statement about Selaginella?

 
 
 
 

748. The most primitive vascular plants is:

 
 
 
 

749. Cryptogams include :

 
 
 
 

750. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

753. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

755. Longest known virus is:

 
 
 
 

756. Bacteriophages have been used as:

 
 
 
 

757. What is a vector?

 
 
 
 

758. Spores of which plants have chloroplast:

 
 
 
 

759. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

762. The nucleus of bacteria is:

 
 
 
 

763. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

766. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

768. Which of the following is a parasitic algae?

 
 
 
 

769. The flagella of Chlamydomonas are:

 
 
 
 

770. Who discovered streptomycin?

 
 
 
 

771. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

776. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

777. Yeast belongs to class:

 
 
 
 

778. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

779. Most of the lichens are composed of :

 
 
 
 

780. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

782. The male gametes of Pinus are :

 
 
 
 

783. The zoospores of Ulothrix are :

 
 
 
 

784. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

786. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

788. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

790. Centric discoid form of diatom is:

 
 
 
 

791. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

794. E coli is a:

 
 
 
 

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

 
 
 
 

796. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

798. Isomorphic type alternation of generation is found in:

 
 
 
 

799. Halophiles are the bacteria that require for growth:

 
 
 
 

800. Which of the following have a prokaryotic cell?

 
 
 
 

801. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. Vegetative reproduction in Cycas is by means of :

 
 
 
 

805. The disease apple scab is caused by:

 
 
 
 

806. Embryo formation is not known in :

 
 
 
 

807. Fern prothallus is:

 
 
 
 

808. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

809. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

813. Select the wrong statement:

 
 
 
 

814. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

816. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

819. Pasteurized milk is:

 
 
 
 

820. Club moss and Peat moss belong to:

 
 
 
 

821. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

824. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

827. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

829. 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:

 
 
 
 

830. In moss, stomata are found:

 
 
 
 

831. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

833. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

836. Which among the following is a shrub?

 
 
 
 

837. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

839. In Cycas the fertilization is:

 
 
 
 

840. Protistan algae obtain their food as:

 
 
 
 

841. In angiosperms double fertilization represents:

 
 
 
 

842. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

845. Ovary is absent in:

 
 
 
 

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

 
 
 
 

847. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

849. Fern prothallus produces:

 
 
 
 

850. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

854. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

858. Which of the following are included in Tracheophyta?

 
 
 
 

859. The sori in Dryopteris are found on:

 
 
 
 

860. Pteridophytes are also known as :

 
 
 
 

861. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

863. Viruses are considered to be:

 
 
 
 

864. Most of the algae are :