Quiz_Random

1. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

3. Fern phloem lacks:

 
 
 
 

4. Embryophyta includes:

 
 
 
 

5. Fern plants are:

 
 
 
 

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

 
 
 
 

7. Which of the following statement is correct?

 
 
 
 

8. Red rot of sugarcane is caused by :

 
 
 
 

9. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

11. Spores of which plants have chloroplast:

 
 
 
 

12. Pasteurized milk is:

 
 
 
 

13. The zygospore in Rhizopus on germination forms:

 
 
 
 

14. Bryophyta have been placed in cryptogams because:

 
 
 
 

15. Bryophyta have a special character from other plants:

 
 
 
 

16. Most of the algae are :

 
 
 
 

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

 
 
 
 

18. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

19. Which of the following is true for Selaginella?

 
 
 
 

20. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

22. 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?

 
 
 
 

23. Which of the following shows heterotrichous habit?

 
 
 
 

24. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

25. Reserve food in Euglena is:

 
 
 
 

26. The largest alga is:

 
 
 
 

27. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

32. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

34. 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?

 
 
 
 

35. Pythium debaryanum is the causative agent of:

 
 
 
 

36. Interferon is a:

 
 
 
 

37. The coralloid roots are :

 
 
 
 

38. Which of the following lichens is harmful?

 
 
 
 

39. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

41. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

44. Banana bunchy top is caused by :

 
 
 
 

45. Germination of the seed of Pinus is :

 
 
 
 

46. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

48. Methanogens belong to:

 
 
 
 

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

 
 
 
 

50. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

59. Antibiotic has been extracted from :

 
 
 
 

60. What is a vector?

 
 
 
 

61. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

62. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Bivalved siliceous shell or frustule occur in:

 
 
 
 

68. In Selaginella, the microsporangia are:

 
 
 
 

69. Water bloom is generally caused by :

 
 
 
 

70. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

72. Black rust of wheat is caused by:

 
 
 
 

73. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

75. The ascus of yeast contains:

 
 
 
 

76. The word “sea weeds” is used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Cap cells are found in the filament of:

 
 
 
 

80. In moss, sporophyte is formed on:

 
 
 
 

81. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

85. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

87. Azolla and Salvinia both are:

 
 
 
 

88. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

94. Sporophyte of fern is:

 
 
 
 

95. Chemosynthetic bacteria are:

 
 
 
 

96. The role of meiosis is for:

 
 
 
 

97. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

99. Which is the correct statement about Selaginella?

 
 
 
 

100. In Pteris, the archegonia are present:

 
 
 
 

101. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

103. What are Cyanobacteria?

 
 
 
 

104. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

106. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

109. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

111. The young leaves of Cycas have :

 
 
 
 

112. Where does meiosis occur in yeast?

 
 
 
 

113. Which is not found in bacteria?

 
 
 
 

114. Gametophyte is the main plant body in :

 
 
 
 

115. The teeth of peristome of Funaria are :

 
 
 
 

116. Most primitive embryophytes are placed in :

 
 
 
 

117. Typhoid in man is caused by:

 
 
 
 

118. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

121. Winged seeds are found in :

 
 
 
 

122. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

125. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

126. Cocci types of bacteria are:

 
 
 
 

127. Redness of red sea is due to :

 
 
 
 

128. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

134. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

142. Fern prothallus is:

 
 
 
 

143. In moss, peristomial teeth are:

 
 
 
 

144. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

146. Spirogyra differs from moss protonema in having :

 
 
 
 

147. The nucleus of bacteria is:

 
 
 
 

148. How is moss different from fern?

 
 
 
 

149. Streptomyces falls under:

 
 
 
 

150. Club moss and Peat moss belong to:

 
 
 
 

151. Pollination drop is:

 
 
 
 

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

 
 
 
 

153. In Pteris, the roots are:

 
 
 
 

154. Which one of the following is a monocot?

 
 
 
 

155. Isomorphic type alternation of generation is found in:

 
 
 
 

156. The source of litmus is :

 
 
 
 

157. What are plasmids?

 
 
 
 

158. Which condition is found in Cycas?

 
 
 
 

159. Male gametes in Dryopteris are:

 
 
 
 

160. Which part of Riccia bears nurse cells?

 
 
 
 

161. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. Synzoospore is produced in:

 
 
 
 

166. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

168. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

170. Centric discoid form of diatom is:

 
 
 
 

171. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

173. Which is a tautonym?

 
 
 
 

174. What is absent in Deuteromycetes?

 
 
 
 

175. Nitrogen-fixing bacteria may be located:

 
 
 
 

176. What is special feature of fern archegonia?

 
 
 
 

177. The spur of Pinus roxburghii has :

 
 
 
 

178. Who among the following discovered virus?

 
 
 
 

179. Quarantine regulations are concerned with:

 
 
 
 

180. Funaria can be differentiated from Cycas :

 
 
 
 

181. Which is an exception to cell theory?

 
 
 
 

182. The gametophyte of fern is as:

 
 
 
 

183. 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:

 
 
 
 

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

 
 
 
 

185. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

187. Cycas is:

 
 
 
 

188. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

190. Heterotrichous habit means :

 
 
 
 

191. Select the wrong statement:

 
 
 
 

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

 
 
 
 

193. Bacteriophages have been used as:

 
 
 
 

194. Most resistant spore in bacteria is:

 
 
 
 

195. 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?

 
 
 
 

196. The group algae possesses representatives belonging to kingdom:

 
 
 
 

197.

198. Enteric bacteria are those bacteria that live:

 
 
 
 

199. Sleeping sickness disease in man is caused by:

 
 
 
 

200. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

205. Kuru, a human disease is caused by:

 
 
 
 

206. 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:

 
 
 
 

207. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

210. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

212. The prothallus of fern is:

 
 
 
 

213. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. Who named prion?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

219. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

221. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

223. The development of Selaginella embryo is:

 
 
 
 

224. Late blight of potato is caused by :

 
 
 
 

225. Leaf spot of groundnut is caused by :

 
 
 
 

226. The chloroplast of Chlamydomonas are:

 
 
 
 

227. Cryptogams include :

 
 
 
 

228. Acellular slime mold is/are:

 
 
 
 

229. Triple antigen injection or vaccine are for:

 
 
 
 

230. Vascular tissue is found in :

 
 
 
 

231. Bacteria are found everywhere, except:

 
 
 
 

232. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

233. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

235. Pinus is:

 
 
 
 

236. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

237. Chemosynthetic bacteria are:

 
 
 
 

238. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

240. The antibiotic is obtained from:

 
 
 
 

241. Viruses are considered to be:

 
 
 
 

242. Lichens reproduce by :

 
 
 
 

243. Cycas is :

 
 
 
 

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

 
 
 
 

245. Rhizopus and yeast are usually:

 
 
 
 

246. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

249. Streptomycin is obtained from:

 
 
 
 

250. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

252. In moss, conducting tissue is made up of

 
 
 
 

253. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

255. Winged pollen grains are found in :

 
 
 
 

256. 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:

 
 
 
 

257. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

261. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

265. The sporangia of Selaginella are attached:

 
 
 
 

266. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

269. The sporangiophores in Rhizopus are:

 
 
 
 

270. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

277. Lichens form the first community in

 
 
 
 

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

 
 
 
 

279. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

282. Fruits are not found in:

 
 
 
 

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

 
 
 
 

284. 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:

 
 
 
 

285. Green plants are classified as:

 
 
 
 

286. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

289. Rice, pea, potato are :

 
 
 
 

290. The smallest bacterium is:

 
 
 
 

291. Heterospory and ligulate leaves are a feature of:

 
 
 
 

292. Longest known virus is:

 
 
 
 

293. Ovules are not found enclosed in ovary of:

 
 
 
 

294. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

296. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

298. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

301. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

303. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

305. In a bacteriophage, DNA is present in:

 
 
 
 

306. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

308. The sporophyte of Riccia is represented by :

 
 
 
 

309. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

311. Ergot is obtained from :

 
 
 
 

312. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

314. The archegonia in Selaginella develop on:

 
 
 
 

315. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

318. Most of the lichens are composed of :

 
 
 
 

319. Which of the following are absent in Mycoplasma?

 
 
 
 

320. Photoautotrophic bacteria have:

 
 
 
 

321. Ginkgo biloba is a:

 
 
 
 

322. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

324. Most appropriate word for protozoans is:

 
 
 
 

325. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

330. All algae have:

 
 
 
 

331. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

333. Clostridium can:

 
 
 
 

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

 
 
 
 

335. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

341. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

343. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

345. Which is an edible fungus?

 
 
 
 

346. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

348. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

353. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

355. Amoeba is a member of the phylum:

 
 
 
 

356. White rust of crucifers is caused by:

 
 
 
 

357. In binomial system most of the words are:

 
 
 
 

358. Embryo formation is not known in :

 
 
 
 

359. An Hfr bacterium is one that contains:

 
 
 
 

360. An alga which is rich in proteins:

 
 
 
 

361. Which is a fungicide?

 
 
 
 

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

 
 
 
 

363. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

364. Embryophyta includes :

 
 
 
 

365. Pseudomycelium is found in:

 
 
 
 

366. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

369. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

373. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

376. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

378. Ectocarpus produces:

 
 
 
 

379. Cleavage polyembryony is found in :

 
 
 
 

380. Broad spectrum antibiotic is, which:

 
 
 
 

381. Milk is converted to curd by:

 
 
 
 

382. Which bacteria convert nitrate into nitrogen?

 
 
 
 

383. Ovary is absent in :

 
 
 
 

384. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

386. The leaves of Funaria are :

 
 
 
 

387. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

389. The chief characteristic of bryophyta is that :

 
 
 
 

390. The similarity between cyanobacteria and bacteria:

 
 
 
 

391. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

394. First animal pathogenic virus was discovered by:

 
 
 
 

395. The fern plant is:

 
 
 
 

396. Plasmids are:

 
 
 
 

397. The tallest moss in the world is :

 
 
 
 

398. Climbers are found in genus:

 
 
 
 

399. The roots of Cycas are :

 
 
 
 

400. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

404.

405. Diploxylic vascular bundles are found in:

 
 
 
 

406. Common phycobiont in a lichen is :

 
 
 
 

407. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

410. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Maximum diversity of life forms occurs in :

 
 
 
 

414. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

418. Spermatophyta are characterized by producing:

 
 
 
 

419. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

422. Virion refers to:

 
 
 
 

423. Botulism is a:

 
 
 
 

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

 
 
 
 

425. Some bacteria cannot be killed easily because of:

 
 
 
 

426. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

428. Yeast belongs to class:

 
 
 
 

429. Lichens show :

 
 
 
 

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

 
 
 
 

431. Gymnosperms could also be called as:

 
 
 
 

432. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

434. Who discovered heterothallism in fungi?

 
 
 
 

435. The DNA of E coli is:

 
 
 
 

436. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

438. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

440. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

442. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

444. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

446. Indusium in Dryopteris is:

 
 
 
 

447. Lichens are pioneers of vegetation in a :

 
 
 
 

448. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

449. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

452. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

454. Pollination in Cycas takes place by :

 
 
 
 

455. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

458. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

461. In moss, reduction division occurs in :

 
 
 
 

462. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. In moss, calyptra is formed from:

 
 
 
 

466. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

468. The smallest unit of classification is:

 
 
 
 

469. The Rhizopus is:

 
 
 
 

470. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

473. Which is not true for Escherichia coli?

 
 
 
 

474. Siphonogamy is found in:

 
 
 
 

475. Iodine is obtained from :

 
 
 
 

476. Smut of maize is caused by :

 
 
 
 

477. Viruses have:

 
 
 
 

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

 
 
 
 

479. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

481. The spermatozoids of Cycas are :

 
 
 
 

482. Most primitive kind of flower is represented by:

 
 
 
 

483. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

485. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

487.

 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

491. Spirogyra represents the :

 
 
 
 

492. Ovules are not found enclosed in ovary in :

 
 
 
 

493. Which class of Protozoa includes all parasitic forms?

 
 
 
 

494. Sporophyte of Funaria is :

 
 
 
 

495. Most primitive embryophytes are placed in:

 
 
 
 

496. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

498. Reproduction in Cycas takes place by :

 
 
 
 

499. Spermatophyta are characterized by producing:

 
 
 
 

500. Which is a redwood tree?

 
 
 
 

501. Red rot of sugarcane is caused by:

 
 
 
 

502. The ferns are usually found:

 
 
 
 

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

 
 
 
 

504. The fungi are mostly:

 
 
 
 

505. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

507. Seeds are characteristically found in:

 
 
 
 

508. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

511. Small epidermal swellings due to infection are called :

 
 
 
 

512. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. Fertility of the soil is increased by:

 
 
 
 

516. Rhizoids of Riccia are :

 
 
 
 

517. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

519. Which of the following have a prokaryotic cell?

 
 
 
 

520. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

524. Virus and bacteriophage are made-up of:

 
 
 
 

525. Saccharomyces is used in:

 
 
 
 

526. Tautonyms are illegitimate in:

 
 
 
 

527. Which is a gametophytic tissue?

 
 
 
 

528.

529. Select the correct statement: (NEET 2016)

 
 
 
 

530. Metulae are found in:

 
 
 
 

531. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

537. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

539. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

542. Protistan algae obtain their food as:

 
 
 
 

543. The mycelium of Rhizopus is:

 
 
 
 

544. What is streptomycin?

 
 
 
 

545. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

548. Fruits are not found in Cycas because:

 
 
 
 

549. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

550. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

554. Yeast is a source of:

 
 
 
 

555. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

557. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

559. The term stele was given by:

 
 
 
 

560. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

562. Saccharomyces ludwigii ascus produces:

 
 
 
 

563. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

565. The antherozoids of Funaria are :

 
 
 
 

566. The lichens growing on rocks are called :

 
 
 
 

567. The sporangium of fern contains nearly:

 
 
 
 

568. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

570. The fungi that grow on wood are called:

 
 
 
 

571. The chloroplast in Ulothrix is :

 
 
 
 

572. Woody climbers are known as :

 
 
 
 

573. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

577. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

582. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

585. The megaspore of Selaginella on germination produces:

 
 
 
 

586. The prothallus of fern represents the plant:

 
 
 
 

587. In a diplontic life cycle:

 
 
 
 

588. Each chloroplast in Spirogyra bears :

 
 
 
 

589. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

592. Club moss is the common name of :

 
 
 
 

593. Placenta in fern is:

 
 
 
 

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

 
 
 
 

595. Early blight of potato is caused by:

 
 
 
 

596. Wine turns sour because of:

 
 
 
 

597. Bacteriophage consists of:

 
 
 
 

598. The chromosomal number in:

 
 
 
 

599. Most primitive group of vascular plants are:

 
 
 
 

600. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

602. Which of the following statements is not correct?

 
 
 
 

603. Which lichen is called Reindeer moss?

 
 
 
 

604. Enzymes are absent in:

 
 
 
 

605. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

612. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

614. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

620. Psilotum is:

 
 
 
 

621. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

624. Green plants are classified as :

 
 
 
 

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

 
 
 
 

626. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

628. Pinus microsporophyll bears:

 
 
 
 

629. Leprosy is caused by:

 
 
 
 

630. The leaves of Funaria are :

 
 
 
 

631. Total parasites belong to:

 
 
 
 

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

 
 
 
 

633. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

635. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

637. 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?

 
 
 
 

638. The zoospores of Ulothrix are :

 
 
 
 

639. In Gymnocarpeae the fruiting body is :

 
 
 
 

640. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

643. Which is the nuclear material in bacteria?

 
 
 
 

644. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

648. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

651. The orders generally have the uniform endings:

 
 
 
 

652. Which of the following have algal zone?

 
 
 
 

653. LSD is:

 
 
 
 

654. Mycoplasma are sensitive to:

 
 
 
 

655. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

657. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. Which fixes atmospheric nitrogen?

 
 
 
 

661. . Tapetum develops in:

 
 
 
 

662. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

664. In Funaria, calyptra is derived from :

 
 
 
 

665. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

675. The tree fern is:

 
 
 
 

676. Parmelia belongs to :

 
 
 
 

677. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

679. The seedless plants which possess vascular tissues are:

 
 
 
 

680. Fruits are not found in :

 
 
 
 

681. Which statement is wrong in regard to bacteria?

 
 
 
 

682. Cell walls of Gram-positive bacteria contain:

 
 
 
 

683. Economic importance of bacteria lies in their being:

 
 
 
 

684. Absorptive nutrition is:

 
 
 
 

685. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

687. Heterocysts are found in :

 
 
 
 

688. Photosynthetic bacteria have:

 
 
 
 

689. Vascular cryptogams is the term used for:

 
 
 
 

690. 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:

 
 
 
 

691. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

694. Mycoplasma are:

 
 
 
 

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

 
 
 
 

696. Funaria is :

 
 
 
 

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

 
 
 
 

698. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

700. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

702. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

703. The fungi used as food are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

707. Funaria are commonly found :

 
 
 
 

708. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

711. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

713. Mycoplasma is different from bacteria due to:

 
 
 
 

714. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

716. The phloem of vascular system of Cycas is :

 
 
 
 

717. Funaria is :

 
 
 
 

718. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

720. Soil fertility is lost by the activities of:

 
 
 
 

721. Azolla growing in paddy fields helps in:

 
 
 
 

722. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

727. Selaginella differs from Moss in having:

 
 
 
 

728. All protozoans possess:

 
 
 
 

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

 
 
 
 

730. Little leaf disease of Brinjal is caused by:

 
 
 
 

731. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

733. Pinus gerardiana is :

 
 
 
 

734. NBG of Lucknow is now named as:

 
 
 
 

735. Lichen show :

 
 
 
 

736. Some diseases caused by bacteria are:

 
 
 
 

737. Which of the following is true for viruses?

 
 
 
 

738. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

739. A gill of Agaricus:

 
 
 
 

740. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

742. Viruses are commonly transmitted in plants through:

 
 
 
 

743. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

745. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

747. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

751. The fungi are usually:

 
 
 
 

752. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

755. Which have the largest antherozoid?

 
 
 
 

756. Ulothrix produces :

 
 
 
 

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

 
 
 
 

758. Vascular cryptogam is the term used for :

 
 
 
 

759. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

761. In tracheophyta:

 
 
 
 

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

 
 
 
 

763. Water-net is the name of:

 
 
 
 

764. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

766. The lambda phase is a:

 
 
 
 

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

 
 
 
 

768. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

770. Lichens are the indicator of pollution :

 
 
 
 

771. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

773. TMV was isolated in crystalline form by:

 
 
 
 

774. The development of sporangium in Selaginella is:

 
 
 
 

775. Which one of the following statement is wrong?

 
 
 
 

776. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

781. The flagella of Chlamydomonas are:

 
 
 
 

782. In Herpes virus DNA is:

 
 
 
 

783. Most common type of conjugation in Spirogyra is :

 
 
 
 

784. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

788. Majority of lichens are :

 
 
 
 

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

 
 
 
 

790. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

793. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

795. Pythium debaryanum is the causative agent of:

 
 
 
 

796. Bacteria are considered to be plants because they:

 
 
 
 

797. Transfusion tissue is present in the leaflet of:

 
 
 
 

798. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

801. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804. Standard size of a herbarium sheet is:

 
 
 
 

805. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

807. The archegonia of Selaginella are differentiated by:

 
 
 
 

808. The upper region of moss capsule is :

 
 
 
 

809. Roots are absent in :

 
 
 
 

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

 
 
 
 

811. Fruiting body of lichens is :

 
 
 
 

812. The alga, Spirogyra are found in :

 
 
 
 

813. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

815. In Cycas the fertilization is:

 
 
 
 

816. Citrus canker is caused by:

 
 
 
 

817. Cycas revoluta is widely grown as :

 
 
 
 

818. The male gametes of Pinus are :

 
 
 
 

819. In Funaria :

 
 
 
 

820. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

826. Among the algae kelps are :

 
 
 
 

827. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

829. Antibiotics cure the disease by:

 
 
 
 

830. Vegetative reproduction in Cycas is by means of :

 
 
 
 

831. Bacteria are placed under:

 
 
 
 

832. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

836. E coli is a:

 
 
 
 

837. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

840. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

842. Sexual reproduction in Rhizopus is by:

 
 
 
 

843. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

845. Which of the following is a monocot?

 
 
 
 

846. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

850. Mycoplasma contains:

 
 
 
 

851. Facultative parasite is:

 
 
 
 

852. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

854. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

856. Pteridophyta are also called:

 
 
 
 

857. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

859. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

861. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

863. Ovary is absent in:

 
 
 
 

864. The photosynthetic protists are: