Quiz_Random

1. Mycoplasma is different from bacteria due to:

 
 
 
 

2. Which is not true for Escherichia coli?

 
 
 
 

3. John Hutchinson divided dicots into two divisions:

 
 
 
 

4. Pteridophyta are also called:

 
 
 
 

5. Club moss is the common name of :

 
 
 
 

6. Enzymes are absent in:

 
 
 
 

7. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

8. Virion refers to:

 
 
 
 

9. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

10. The DNA of E coli is:

 
 
 
 

11. Fruits are not found in :

 
 
 
 

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

 
 
 
 

13. In Cycas the fertilization is:

 
 
 
 

14. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

16. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

19. Aflatoxin is produced as a product in :

 
 
 
 

20. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

22. 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:

 
 
 
 

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

 
 
 
 

24. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

26. The sporangia of Selaginella are attached:

 
 
 
 

27. Zoogametes are not found in:

 
 
 
 

28. What is the role of nitrifying bacteria?

 
 
 
 

29. The middle sterile part of capsule is called:

 
 
 
 

30. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

33. In a diplontic life cycle:

 
 
 
 

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

 
 
 
 

35. Typhoid in man is caused by:

 
 
 
 

36. True sexuality is not found in:

 
 
 
 

37. Pasteurized milk is:

 
 
 
 

38. 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:

 
 
 
 

39. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

41. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

43. Leprosy is caused by:

 
 
 
 

44. Photosynthetic bacteria have:

 
 
 
 

45. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

50. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

65. Among the algae kelps are :

 
 
 
 

66. Yeast is a source of:

 
 
 
 

67. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. Special feature of pollen grains of Pinus is :

 
 
 
 

71. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Clostridium can:

 
 
 
 

78. Nitrifying bacteria play an important role by converting:

 
 
 
 

79. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

82. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. Mycoplasma are sensitive to:

 
 
 
 

86. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

88. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

89. Vegetative reproduction in Cycas is by means of :

 
 
 
 

90.

 

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

 
 
 
 

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

 
 
 
 

93. Standard size of a herbarium sheet is:

 
 
 
 

94. Cycas is:

 
 
 
 

95. Sexual reproduction in Rhizopus is by:

 
 
 
 

96. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

98. Spirogyra differs from moss protonema in having :

 
 
 
 

99. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

102. Cyanophage is a virus that attacks:

 
 
 
 

103. Lichens show :

 
 
 
 

104. Selaginella differs from Moss in having:

 
 
 
 

105. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

107. Aflatoxin is produced by:

 
 
 
 

108. The leaves of Funaria are :

 
 
 
 

109. Cycas is different from mango in :

 
 
 
 

110. Ginkgo biloba is a:

 
 
 
 

111.

112. Fern plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

115. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

118. Which is a redwood tree?

 
 
 
 

119. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

121. Cryptogams include :

 
 
 
 

122. Rhizophore of Selaginella is:

 
 
 
 

123. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

125. Infective part of virus was discovered by:

 
 
 
 

126. Bryophyta have been placed in cryptogams because:

 
 
 
 

127. 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:

 
 
 
 

128. Endemic plants are characterised by their:

 
 
 
 

129. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. Which is not found in bacteria?

 
 
 
 

134. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

135. Sexual reproduction of lichen is due to :

 
 
 
 

136. Asexual reproductive body of Volvox is called:

 
 
 
 

137. Viruses have:

 
 
 
 

138. Mycoplasma contains:

 
 
 
 

139. Which of the following is true for viruses?

 
 
 
 

140. Which of the following is true for Selaginella?

 
 
 
 

141. Siphonogamy is found in:

 
 
 
 

142. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

144. In moss, reduction division occurs in :

 
 
 
 

145. Winged seeds are found in :

 
 
 
 

146. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

154. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

156. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

158. Which among the following is a shrub?

 
 
 
 

159. 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:

 
 
 
 

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

 
 
 
 

161. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

163. Pseudomycelium is found in:

 
 
 
 

164. Simple polyembryony is found in :

 
 
 
 

165. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

169. Who discovered cyanophages?

 
 
 
 

170. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

174. Ovules are not found enclosed in ovary of:

 
 
 
 

175. Which statement is wrong in regard to bacteria?

 
 
 
 

176. All protozoans possess:

 
 
 
 

177. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

183. Methanogens belong to:

 
 
 
 

184. Viruses are commonly transmitted in plants through:

 
 
 
 

185. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

187. Triple antigen injection or vaccine are for:

 
 
 
 

188. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

189. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

192. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

194. The largest known bacterium is:

 
 
 
 

195. Cellular slime mold is:

 
 
 
 

196. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

198. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

201. Placenta in fern is:

 
 
 
 

202. Mycoplasma was discovered by:

 
 
 
 

203. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

209. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

211. In moss, sporogenous tissue arises from:

 
 
 
 

212. Water-net is the name of:

 
 
 
 

213. Late blight of potato is caused by :

 
 
 
 

214. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

217. Which of the following shows heterotrichous habit?

 
 
 
 

218. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

222. Mixed cropping helps :

 
 
 
 

223. Most of the algae are :

 
 
 
 

224. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

226. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

228. Embryophyta includes:

 
 
 
 

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

 
 
 
 

230. The chloroplast of Chlamydomonas are:

 
 
 
 

231. Which of the following is a heterosporous pteridophyte?

 
 
 
 

232. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. Male gametes in Dryopteris are:

 
 
 
 

236. Roots are absent in :

 
 
 
 

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

 
 
 
 

238.

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

 
 
 
 

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

 
 
 
 

241. Which bacteria convert nitrate into nitrogen?

 
 
 
 

242. The Rhizopus is:

 
 
 
 

243. Ovary is absent in :

 
 
 
 

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

 
 
 
 

245. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

247. The gametophyte of fern is as:

 
 
 
 

248. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

250. The fungi used as food are:

 
 
 
 

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

 
 
 
 

252. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

253. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

255. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

256. The first to isolate a plant virus was:

 
 
 
 

257. Plasmids are:

 
 
 
 

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

 
 
 
 

259. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

261. LSD is:

 
 
 
 

262. Which of the following is a monocot?

 
 
 
 

263. Absorptive nutrition is:

 
 
 
 

264. Isomorphic type alternation of generation is found in:

 
 
 
 

265. The zygospore in Rhizopus on germination forms:

 
 
 
 

266. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

269. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

273. Which is a gametophytic tissue?

 
 
 
 

274. In Cycas:

 
 
 
 

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

 
 
 
 

276. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

277. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. Which is the correct statement about Selaginella?

 
 
 
 

284. The tallest moss in the world is :

 
 
 
 

285. Bacteria growing on synthetic medium are called:

 
 
 
 

286. The genetic material of poxvirus is:

 
 
 
 

287. Total parasites belong to:

 
 
 
 

288. The Rhizopus gametes are formed in:

 
 
 
 

289. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

291. Bacteriophage consists of:

 
 
 
 

292. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

294. 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?

 
 
 
 

295. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

298. Antibiotics cure the disease by:

 
 
 
 

299. Germination of the seed of Pinus is :

 
 
 
 

300. Who among the following discovered virus?

 
 
 
 

301. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

304. The chloroplast in Ulothrix is :

 
 
 
 

305. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

307. Helotism word is used for the symbiosis between :

 
 
 
 

308. The ferns are usually found:

 
 
 
 

309. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

311. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

319. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

321. Spermatophyta are characterized by producing:

 
 
 
 

322. Smallpox is caused by:

 
 
 
 

323. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

326. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

328. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

331. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

332. All algae have:

 
 
 
 

333. Circular DNA is seen in:

 
 
 
 

334. Redness of red sea is due to :

 
 
 
 

335. Milk is converted to curd by:

 
 
 
 

336. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

337. Multicellular and jacketed sex organs are found in :

 
 
 
 

338. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

341. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

343. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

346. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

348. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

350. The largest alga is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

353. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

355. Heterotrichous habit means :

 
 
 
 

356. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

360. Pythium debaryanum is the causative agent of:

 
 
 
 

361. Reserve food in Euglena is:

 
 
 
 

362. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

364. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

365. Select the correct statement: (NEET 2016)

 
 
 
 

366. Some biologists have used the term Mycetozoa for:

 
 
 
 

367. 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:

 
 
 
 

368. Oswald Tippo’s classification is:

 
 
 
 

369. Nitrogen-fixing bacteria may be located:

 
 
 
 

370. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

373. Heterospory and ligulate leaves are a feature of:

 
 
 
 

374. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

376. The prothallus of fern is:

 
 
 
 

377. Transfusion tissue is present in the leaflet of:

 
 
 
 

378. Azolla and Salvinia both are:

 
 
 
 

379. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

381. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

385. Some diseases caused by bacteria are:

 
 
 
 

386. Red rot of sugarcane is caused by :

 
 
 
 

387. Which have the largest antherozoid?

 
 
 
 

388. Cocci types of bacteria are:

 
 
 
 

389. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

391. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

394. How is moss different from fern?

 
 
 
 

395. The tree fern is:

 
 
 
 

396. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

398. Pasteurization of milk involves heating for:

 
 
 
 

399. Citrus canker is caused by :

 
 
 
 

400. Which of the following is a parasitic algae?

 
 
 
 

401. Male gametophyte of Selaginella is found:

 
 
 
 

402. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

404. Centric discoid form of diatom is:

 
 
 
 

405. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

407. Funaria is :

 
 
 
 

408. The gametophyte of fern bears:

 
 
 
 

409. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

412. Most of the lichens are composed of :

 
 
 
 

413. Pollination in Pinus is :

 
 
 
 

414. Fairy ring is the name given to:

 
 
 
 

415. The chromosomal number in:

 
 
 
 

416. Which is a tautonym?

 
 
 
 

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

 
 
 
 

418. Most appropriate word for protozoans is:

 
 
 
 

419. The order generally ends with:

 
 
 
 

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

 
 
 
 

421. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

426. Azolla growing in paddy fields helps in:

 
 
 
 

427. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

429. The leafy fern plant represents the:

 
 
 
 

430. Diploxylic vascular bundles are found in:

 
 
 
 

431. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

434. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

439. Fern prothallus is:

 
 
 
 

440. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

443. Which one of the following is a monocot?

 
 
 
 

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

 
 
 
 

445. The rhizoids of Funaria are :

 
 
 
 

446. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. Cycas plant in appearance resembles :

 
 
 
 

452. Majority of lichens are :

 
 
 
 

453. Which fixes atmospheric nitrogen?

 
 
 
 

454. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

456. Longest known virus is:

 
 
 
 

457. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

463. Ovary is absent in:

 
 
 
 

464. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

466. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

469. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

471. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

473. Metulae are found in:

 
 
 
 

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

 
 
 
 

475. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

478. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

480. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

482. What is special feature of fern archegonia?

 
 
 
 

483. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

485. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

489. Which of the following statement is correct?

 
 
 
 

490. The most important property of yeast is:

 
 
 
 

491. An alga which is rich in proteins:

 
 
 
 

492. Nannandria are:

 
 
 
 

493. The antherozoids of Funaria are :

 
 
 
 

494. In Selaginella, the microsporangia are:

 
 
 
 

495. Bentham and Hooker placed gymnosperms:

 
 
 
 

496. Fern prothallus produces:

 
 
 
 

497. Bacteriophages have been used as:

 
 
 
 

498. The fungi are mostly:

 
 
 
 

499. Black rust of wheat is caused by:

 
 
 
 

500. 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?

 
 
 
 

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

 
 
 
 

502. First animal pathogenic virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

505. Where does meiosis occur in yeast?

 
 
 
 

506. The fungi are usually:

 
 
 
 

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

 
 
 
 

508. The lichens growing on rocks are called :

 
 
 
 

509. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

516. What are Cyanobacteria?

 
 
 
 

517. Select the wrong statement:

 
 
 
 

518. Chemosynthetic bacteria are:

 
 
 
 

519. Yeast grows more rapidly in:

 
 
 
 

520. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

522. Little leaf disease of Brinjal is caused by:

 
 
 
 

523. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

525. What is streptomycin?

 
 
 
 

526. Indusium in Dryopteris is:

 
 
 
 

527. Cycas revoluta is widely grown as :

 
 
 
 

528. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

530. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

533. The zoospores of Ulothrix are :

 
 
 
 

534. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

538. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

541. Which of the following have a prokaryotic cell?

 
 
 
 

542. Discovery of penicillin was based on:

 
 
 
 

543. Meristele of fern is:

 
 
 
 

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

 
 
 
 

545. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

548. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

549. E coli is a:

 
 
 
 

550. In binomial system most of the words are:

 
 
 
 

551. 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:

 
 
 
 

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

 
 
 
 

553. Cyathia is characterized by:

 
 
 
 

554. The coralloid roots are :

 
 
 
 

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

 
 
 
 

556. White rust of crucifers is caused by:

 
 
 
 

557. Fruiting body of lichens is :

 
 
 
 

558. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

560. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

562. Saccharomyces is well known for:

 
 
 
 

563. Gymnosperms could also be called as:

 
 
 
 

564. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

567. The term stele was given by:

 
 
 
 

568. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

571. Bacteria are placed under:

 
 
 
 

572. Red rot of sugarcane is caused by:

 
 
 
 

573. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

575. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. Which part of Riccia bears nurse cells?

 
 
 
 

579. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

581. The lambda phase is a:

 
 
 
 

582. Mucilaginous canals in Cycas are found in :

 
 
 
 

583. Soil fertility is lost by the activities of:

 
 
 
 

584. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

592. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

595. Chemosynthetic bacteria are:

 
 
 
 

596. The spermatozoids of Cycas are :

 
 
 
 

597. Green plants are classified as:

 
 
 
 

598. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

600. Psilotum is:

 
 
 
 

601. . Tapetum develops in:

 
 
 
 

602. Which causes red tide?

 
 
 
 

603. In moss, stomata are found:

 
 
 
 

604. 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?

 
 
 
 

605. The mycelium of Rhizopus is:

 
 
 
 

606. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

608. Smut of maize is caused by :

 
 
 
 

609. Why is Cycas called a living fossil?

 
 
 
 

610. Which is a fungicide?

 
 
 
 

611. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

613. Generic name of mango is:

 
 
 
 

614. Which of the following applies to Selaginella?

 
 
 
 

615. Wine turns sour because of:

 
 
 
 

616. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

618. Oswald Tippo’s classification was based on :

 
 
 
 

619. The prothallus of fern represents the plant:

 
 
 
 

620. Spores of which plants have chloroplast:

 
 
 
 

621. The smallest unit of classification is:

 
 
 
 

622.

623. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

624. Mostly type of zygospore in Ulothrix is:

 
 
 
 

625. Virus and bacteriophage are made-up of:

 
 
 
 

626. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

629. Etiology includes the study of :

 
 
 
 

630. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

636. Pollination drop is:

 
 
 
 

637. The alga, Spirogyra are found in :

 
 
 
 

638. The sporangium of fern contains nearly:

 
 
 
 

639. Cycas is :

 
 
 
 

640. Ethylene oxide is widely used to:

 
 
 
 

641. Most resistant spore in bacteria is:

 
 
 
 

642. Streptomyces falls under:

 
 
 
 

643. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

646. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

648. Lichens are the indicator of pollution :

 
 
 
 

649. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

652. The archegonia of Selaginella are differentiated by:

 
 
 
 

653. Each chloroplast in Spirogyra bears :

 
 
 
 

654. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

657. The truncated cone of HIV consists of:

 
 
 
 

658. In moss, peristomial teeth are:

 
 
 
 

659. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

661. Economic importance of bacteria lies in their being:

 
 
 
 

662. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

664. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

666. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

668. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

670. Winged pollen grains are found in :

 
 
 
 

671. Gram stain is used to:

 
 
 
 

672. Spirogyra represents the :

 
 
 
 

673. Funaria is :

 
 
 
 

674. The phloem of vascular system of Cycas is :

 
 
 
 

675. What is a vector?

 
 
 
 

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

 
 
 
 

677. Protozoans are considered animals because these are:

 
 
 
 

678. Which one of the following statement is wrong?

 
 
 
 

679. In Cycas microsporangia are borne on:

 
 
 
 

680. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

682. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

684. Acetobacter is useful in:

 
 
 
 

685. In Pteris, the roots are:

 
 
 
 

686. The sporophyte of Riccia is represented by :

 
 
 
 

687. Mycoplasmas are not viruses in nature because:

 
 
 
 

688. Bacteria differ from viruses in being sensitive to:

 
 
 
 

689. Viruses are considered to be:

 
 
 
 

690. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

694. Gametophyte is the main plant body in :

 
 
 
 

695. Small epidermal swellings due to infection are called :

 
 
 
 

696. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

700. Which of the following lichens is harmful?

 
 
 
 

701. Early blight of potato is caused by:

 
 
 
 

702. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

705. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

707. Rhizopus belongs to:

 
 
 
 

708. Liverworts are included in :

 
 
 
 

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

 
 
 
 

710. The central part of Funaria axis is :

 
 
 
 

711. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

713. In tracheophyta:

 
 
 
 

714. Iodine is obtained from :

 
 
 
 

715. Rhizopus and yeast are usually:

 
 
 
 

716. Synzoospore is produced in:

 
 
 
 

717. Sporophyte of Funaria is :

 
 
 
 

718. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

720. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

722. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

724. Polystelic condition is found in:

 
 
 
 

725. Heterocysts are found in :

 
 
 
 

726. Ovules are not found enclosed in ovary in :

 
 
 
 

727. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

730. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

732. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

735. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

738. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

740. Broad spectrum antibiotic is, which:

 
 
 
 

741. Some bacteria cannot be killed easily because of:

 
 
 
 

742. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

745. Number of capsomeres forming capsid of TMV is:

 
 
 
 

746. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

748. Embryophyta includes :

 
 
 
 

749. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Ulothrix produces :

 
 
 
 

755. Sleeping sickness disease in man is caused by:

 
 
 
 

756. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

759. The orders generally have the uniform endings:

 
 
 
 

760. Which is the nuclear material in bacteria?

 
 
 
 

761. Viroids have:

 
 
 
 

762. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

764. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

767. Most primitive embryophytes are placed in:

 
 
 
 

768. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

770. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

772. The spur of Pinus roxburghii has :

 
 
 
 

773. Lichens are ecologically important because :

 
 
 
 

774. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

776. Facultative parasite is:

 
 
 
 

777. Enteric bacteria are those bacteria that live:

 
 
 
 

778. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

780. Interferon is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

787. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

790. The gametophyte produced by apospory is :

 
 
 
 

791. Botulinum toxin effects:

 
 
 
 

792. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

795. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

799. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

801. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. Pythium debaryanum is the causative agent of:

 
 
 
 

805. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. Ectocarpus produces:

 
 
 
 

809. Which of the following have algal zone?

 
 
 
 

810. The male gametes of Pinus are :

 
 
 
 

811. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

813. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

815. Sometimes the bacterial cell is enclosed in:

 
 
 
 

816. One of the distinctive feature of Spirogyra is :

 
 
 
 

817. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

819. The upper region of moss capsule is :

 
 
 
 

820. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

825. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

828. Meiosis in Ulothrix takes place:

 
 
 
 

829. Detailed study of bacteriophage was made by:

 
 
 
 

830. Rice, pea, potato are :

 
 
 
 

831. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

833. Lichens form the first community in

 
 
 
 

834. Ergot is obtained from :

 
 
 
 

835. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

837. Linnaeus is credited with introducing:

 
 
 
 

838. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

840. Vascular cryptogam is the term used for :

 
 
 
 

841. Kuru, a human disease is caused by:

 
 
 
 

842. Which group of algae have an incipient nucleus?

 
 
 
 

843. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

845. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

846. Fruits are not found in:

 
 
 
 

847. The stele of Dryopteris is a:

 
 
 
 

848. The fungi that grow on wood are called:

 
 
 
 

849. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

851. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

854. The source of litmus is :

 
 
 
 

855. What are plasmids?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

858. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

860. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

862. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

864. Who named prion?