Quiz_Random

1. The gametophyte of fern bears:

 
 
 
 

2. Which part of Riccia bears nurse cells?

 
 
 
 

3. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

4. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

6. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

8. Embryophyta includes :

 
 
 
 

9. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

11. The phloem of vascular system of Cycas is :

 
 
 
 

12. Which is not found in bacteria?

 
 
 
 

13. Which is a fungicide?

 
 
 
 

14. Ovary is absent in :

 
 
 
 

15. Polystelic condition is found in:

 
 
 
 

16. Downy mildew disease is caused by :

 
 
 
 

17. Smallpox is caused by:

 
 
 
 

18. Simple polyembryony is found in :

 
 
 
 

19. Lichens are the indicator of pollution :

 
 
 
 

20. Which is not true for Escherichia coli?

 
 
 
 

21. Vegetative reproduction in Cycas is by means of :

 
 
 
 

22. Diphtheria is caused by:

 
 
 
 

23. Azolla growing in paddy fields helps in:

 
 
 
 

24. Chemosynthetic bacteria are:

 
 
 
 

25. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. Winged seeds are found in :

 
 
 
 

30. The fungi are mostly:

 
 
 
 

31. Which is the nuclear material in bacteria?

 
 
 
 

32. Streptomycin is obtained from:

 
 
 
 

33. Cyathia is characterized by:

 
 
 
 

34. Sexual reproduction of lichen is due to :

 
 
 
 

35. White rust of crucifers is caused by:

 
 
 
 

36. Most appropriate word for protozoans is:

 
 
 
 

37. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Which of the following statement is correct?

 
 
 
 

41. Pythium debaryanum is the causative agent of:

 
 
 
 

42. Who discovered heterothallism in fungi?

 
 
 
 

43. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

45. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Most primitive group of vascular plants are:

 
 
 
 

49. Bacteria are found everywhere, except:

 
 
 
 

50. Ovules are not found enclosed in ovary of:

 
 
 
 

51. Tautonyms are illegitimate in:

 
 
 
 

52. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

54. Which of the following is true for viruses?

 
 
 
 

55. Who discovered cyanophages?

 
 
 
 

56. Male gametes in Dryopteris are:

 
 
 
 

57. The Rhizopus is:

 
 
 
 

58. Which of the following are absent in Mycoplasma?

 
 
 
 

59. Which of the following have a prokaryotic cell?

 
 
 
 

60. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

63. Funaria is :

 
 
 
 

64. Cycas is similar to a mustard plant :

 
 
 
 

65. Lichens are pioneers of vegetation in a :

 
 
 
 

66. Select the wrong statement:

 
 
 
 

67. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

70. The central part of Funaria axis is :

 
 
 
 

71. The coralloid roots are :

 
 
 
 

72. Photosynthetic protists belong to:

 
 
 
 

73. Special feature of pollen grains of Pinus is :

 
 
 
 

74. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

80. Citrus canker is caused by:

 
 
 
 

81. What is absent in Deuteromycetes?

 
 
 
 

82. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

84. Funaria can be differentiated from Cycas :

 
 
 
 

85. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. 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?

 
 
 
 

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

 
 
 
 

90. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

92. Which bacteria convert nitrate into nitrogen?

 
 
 
 

93. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

95. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

97. Etiology includes the study of :

 
 
 
 

98. Which is an exception to cell theory?

 
 
 
 

99. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

102. What are plasmids?

 
 
 
 

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

 
 
 
 

104. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

106. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

108. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

117. Which statement is wrong in regard to bacteria?

 
 
 
 

118. Metulae are found in:

 
 
 
 

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

 
 
 
 

120. Pteridophytes are also known as :

 
 
 
 

121. Which is an edible fungus?

 
 
 
 

122. The disease apple scab is caused by:

 
 
 
 

123. The source of litmus is :

 
 
 
 

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

 
 
 
 

125. Heterosporous pteridophytes always form:

 
 
 
 

126. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

129. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

131. The order generally ends with:

 
 
 
 

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

 
 
 
 

133. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

135. Mycoplasma are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

140. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

142. Heterospory and ligulate leaves are a feature of:

 
 
 
 

143. Disease resistant plant varieties can be produced by :

 
 
 
 

144. In moss, calyptra is formed from:

 
 
 
 

145. Club moss and Peat moss belong to:

 
 
 
 

146. The similarity between cyanobacteria and bacteria:

 
 
 
 

147. Which of the following is true for Selaginella?

 
 
 
 

148. The archegonia in Selaginella develop on:

 
 
 
 

149. Lichen show :

 
 
 
 

150. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

151. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

153. 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:

 
 
 
 

154. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

158. The chromosomal number in:

 
 
 
 

159. LSD is:

 
 
 
 

160. Spermatophyta are characterized by producing:

 
 
 
 

161. Roots are absent in :

 
 
 
 

162.

 

163. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

166. Pollination drop is:

 
 
 
 

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

 
 
 
 

168. Sometimes the bacterial cell is enclosed in:

 
 
 
 

169. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

176. Green plants are classified as :

 
 
 
 

177. Most of the lichens are composed of :

 
 
 
 

178. Meristele of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

181. Fern phloem lacks:

 
 
 
 

182. 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?

 
 
 
 

183. Saccharomyces is well known for:

 
 
 
 

184. The rhizoids of Funaria are :

 
 
 
 

185. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

187. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

189. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

192. Which of the following shows heterotrichous habit?

 
 
 
 

193. Anoxygenic photosynthesis occurs in:

 
 
 
 

194. Milk is converted to curd by:

 
 
 
 

195. Bacteriophages have been used as:

 
 
 
 

196. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

198. In moss, sporogenous tissue arises from:

 
 
 
 

199. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

205. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

209. Transfusion tissue is present in the leaflet of:

 
 
 
 

210. Cyanophage is a virus that attacks:

 
 
 
 

211. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

214. Sporophyte of Funaria is :

 
 
 
 

215. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

217. The prothallus of fern represents the plant:

 
 
 
 

218. What is a vector?

 
 
 
 

219. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

221. Pseudomycelium is found in:

 
 
 
 

222. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

227. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

230.

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

 
 
 
 

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

 
 
 
 

233. What is the role of nitrifying bacteria?

 
 
 
 

234. Ovules are not found enclosed in ovary in :

 
 
 
 

235. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

237. The young leaves of Cycas have :

 
 
 
 

238. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

240. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

242. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

244. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

246. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

248. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

253. Ergot is obtained from :

 
 
 
 

254. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

256. Fruits are not found in:

 
 
 
 

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

 
 
 
 

258. Standard size of a herbarium sheet is:

 
 
 
 

259. Fruits are not found in :

 
 
 
 

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

 
 
 
 

261. Proembryo in Pinus is :

 
 
 
 

262. Which fixes atmospheric nitrogen?

 
 
 
 

263. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

265. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

267. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

269. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. The vascular bundles of Cycas stem are :

 
 
 
 

273. Saccharomyces ludwigii ascus produces:

 
 
 
 

274. The stele of Dryopteris is a:

 
 
 
 

275. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

277. Isomorphic type alternation of generation is found in:

 
 
 
 

278. Lichens form the first community in

 
 
 
 

279. Wine turns sour because of:

 
 
 
 

280. In angiosperms double fertilization represents:

 
 
 
 

281. Some biologists have used the term Mycetozoa for:

 
 
 
 

282. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

284. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

286. 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:

 
 
 
 

287. Cycas is different from mango in :

 
 
 
 

288. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

290. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

292. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

293. In tracheophyta:

 
 
 
 

294. Ulothrix produces :

 
 
 
 

295. The sporophyte of Riccia is :

 
 
 
 

296. All algae have:

 
 
 
 

297. Viruses have:

 
 
 
 

298. Choose the correct statement about Spirogyra:

 
 
 
 

299. Multicellular and jacketed sex organs are found in :

 
 
 
 

300. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

304. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

306. Pinus microsporophyll bears:

 
 
 
 

307. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

312. Most primitive embryophytes are placed in:

 
 
 
 

313. Absorptive nutrition is:

 
 
 
 

314. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

318. The tree fern is:

 
 
 
 

319. Green plants are classified as:

 
 
 
 

320. Which of the following is a monocot?

 
 
 
 

321. The sori in Dryopteris are found on:

 
 
 
 

322. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

324. Bryophyta have been placed in cryptogams because:

 
 
 
 

325. The antibiotic is obtained from:

 
 
 
 

326. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

328. Embryophyta includes:

 
 
 
 

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

 
 
 
 

330. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

332. Oswald Tippo’s classification was based on :

 
 
 
 

333. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

336. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

338. Acetobacter is useful in:

 
 
 
 

339. The truncated cone of HIV consists of:

 
 
 
 

340. Winged pollen grains are found in :

 
 
 
 

341. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

344. In Cycas which structure is equivalent to stamen?

 
 
 
 

345. E coli is a:

 
 
 
 

346. Typhoid in man is caused by:

 
 
 
 

347. Which of the following is sago palm?

 
 
 
 

348. Iodine is obtained from :

 
 
 
 

349. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

351. Black rust of wheat is caused by:

 
 
 
 

352. Redness of red sea is due to :

 
 
 
 

353. Little leaf disease of Brinjal is caused by:

 
 
 
 

354. Interferon is a:

 
 
 
 

355. The first to isolate a plant virus was:

 
 
 
 

356. 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:

 
 
 
 

357. Banana bunchy top is caused by :

 
 
 
 

358. What is streptomycin?

 
 
 
 

359. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

361. Bacteriophage consists of:

 
 
 
 

362. Pasteurization of milk involves heating for:

 
 
 
 

363. 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:

 
 
 
 

364. Nannandria are:

 
 
 
 

365. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

367.

368. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

370. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

374. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

376. Ectocarpus produces:

 
 
 
 

377. Black rust of wheat is caused by:

 
 
 
 

378. Azolla and Salvinia both are:

 
 
 
 

379. 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:

 
 
 
 

380. In Cycas microsporangia are borne on:

 
 
 
 

381. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

385. Cycas revoluta is widely grown as :

 
 
 
 

386. Oswald Tippo’s classification is:

 
 
 
 

387. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

389. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

392. Which is the correct statement about Selaginella?

 
 
 
 

393. Endemic plants are characterised by their:

 
 
 
 

394. The sexual reproductive organs in Rhizopus are:

 
 
 
 

395. Kuru, a human disease is caused by:

 
 
 
 

396. The ferns are usually found:

 
 
 
 

397. Lichens show :

 
 
 
 

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

 
 
 
 

399. The megasporangium of Selaginella is:

 
 
 
 

400. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

402. Generic name of mango is:

 
 
 
 

403. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

406. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

408. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

413. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

415. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

417. Fern plants are:

 
 
 
 

418. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

419. Which group of algae have an incipient nucleus?

 
 
 
 

420. The root nodules of leguminous plants contain:

 
 
 
 

421. One of the distinctive feature of Spirogyra is :

 
 
 
 

422. Germination of the seed of Pinus is :

 
 
 
 

423. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

425. Woody climbers are known as :

 
 
 
 

426. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

433. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

435. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

437. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

442. Selaginella differs from Moss in having:

 
 
 
 

443. Photoautotrophic bacteria have:

 
 
 
 

444. Where does meiosis occur in yeast?

 
 
 
 

445. Diploxylic vascular bundles are found in:

 
 
 
 

446. Which of the following are included in Tracheophyta?

 
 
 
 

447. Cycas is :

 
 
 
 

448. Who among the following discovered virus?

 
 
 
 

449. Which of the following are included in Tracheophyta?

 
 
 
 

450. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

453. Some bacteria cannot be killed easily because of:

 
 
 
 

454. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

459. Circular DNA is seen in:

 
 
 
 

460. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

463. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

466. Psilotum is:

 
 
 
 

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

 
 
 
 

468. Seeds are characteristically found in:

 
 
 
 

469. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

471. Each chloroplast in Spirogyra bears :

 
 
 
 

472. How is moss different from fern?

 
 
 
 

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

 
 
 
 

474. The lichens growing on rocks are called :

 
 
 
 

475. Coenogamete is found in:

 
 
 
 

476. Rhizophore of Selaginella is:

 
 
 
 

477. The fungi that grow on wood are called:

 
 
 
 

478. Fairy ring is the name given to:

 
 
 
 

479. In a diplontic life cycle:

 
 
 
 

480. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

482. The megaspore of Selaginella on germination produces:

 
 
 
 

483. Enzymes are absent in:

 
 
 
 

484. The zoospores of Ulothrix are :

 
 
 
 

485. Which of the following is a heterosporous pteridophyte?

 
 
 
 

486. First animal pathogenic virus was discovered by:

 
 
 
 

487. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

489. Water-borne bacterial diseases are:

 
 
 
 

490. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

494. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

497. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

499. Yeast is a source of:

 
 
 
 

500. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

502. All protozoans possess:

 
 
 
 

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

 
 
 
 

504. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

506. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

508. 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:

 
 
 
 

509. Water bloom is generally caused by :

 
 
 
 

510. Early blight of potato is caused by:

 
 
 
 

511. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

512. The photosynthetic protists are:

 
 
 
 

513. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

514. NBG of Lucknow is now named as:

 
 
 
 

515. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

517. In moss, sporophyte is formed on:

 
 
 
 

518. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

519. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

522. Mycoplasmas are not viruses in nature because:

 
 
 
 

523. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

525. Water-net is the name of:

 
 
 
 

526. An Hfr bacterium is one that contains:

 
 
 
 

527. The orders generally have the uniform endings:

 
 
 
 

528. The plants of Funaria grow :

 
 
 
 

529. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. Botulism is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

535. Select the wrong statement:

 
 
 
 

536. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

538. Common phycobiont in a lichen is :

 
 
 
 

539. Economic importance of bacteria lies in their being:

 
 
 
 

540. The genetic material of poxvirus is:

 
 
 
 

541. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

544. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

550. Rhizoids of Riccia are :

 
 
 
 

551. Gymnosperms could also be called as:

 
 
 
 

552. Mostly type of zygospore in Ulothrix is:

 
 
 
 

553. Fern prothallus produces:

 
 
 
 

554. Most of the algae are :

 
 
 
 

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

 
 
 
 

556. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

560. 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?

 
 
 
 

561. Infective part of virus was discovered by:

 
 
 
 

562. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

564. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

566. Male gametophyte of Selaginella is found:

 
 
 
 

567. Centric discoid form of diatom is:

 
 
 
 

568. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

570. Which of the following applies to Selaginella?

 
 
 
 

571. Cycas plant in appearance resembles :

 
 
 
 

572. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

574. Penicillin is obtained from:

 
 
 
 

575. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. Fruits are not found in Cycas because:

 
 
 
 

579. Enteric bacteria are those bacteria that live:

 
 
 
 

580. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

582. Meiosis in Ulothrix takes place:

 
 
 
 

583. Number of capsomeres forming capsid of TMV is:

 
 
 
 

584. Viruses are commonly transmitted in plants through:

 
 
 
 

585. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

588. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

590. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

593. Late blight of potato is caused by:

 
 
 
 

594. The Rhizopus gametes are formed in:

 
 
 
 

595. TMV was isolated in crystalline form by:

 
 
 
 

596. In a bacteriophage, DNA is present in:

 
 
 
 

597. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

598.

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

 
 
 
 

600. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

603. The sporangiophores in Rhizopus are:

 
 
 
 

604. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

607. Mycoplasma contains:

 
 
 
 

608. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

609. In dinoflagellates, the two flagella are:

 
 
 
 

610. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

617. The zygospore in Rhizopus on germination forms:

 
 
 
 

618. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

620. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

623. Red rot of sugarcane is caused by:

 
 
 
 

624. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. An alga which is rich in proteins:

 
 
 
 

628. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

634. Usually, bacteria reproduce by:

 
 
 
 

635. The antherozoids of Funaria are :

 
 
 
 

636. Most primitive embryophytes are placed in :

 
 
 
 

637. Late blight of potato is caused by :

 
 
 
 

638. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

641. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

643. Who named prion?

 
 
 
 

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

 
 
 
 

645. Pasteurized milk is:

 
 
 
 

646. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

652. Bacteria are considered to be plants because they:

 
 
 
 

653. In Cycas:

 
 
 
 

654. Agar-agar is obtained from:

 
 
 
 

655. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

661. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

665. Virion refers to:

 
 
 
 

666. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

668. Longest known virus is:

 
 
 
 

669. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

673. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

675. Among the algae kelps are :

 
 
 
 

676. Bacteria are placed under:

 
 
 
 

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

 
 
 
 

678. 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?

 
 
 
 

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

 
 
 
 

680. Aflatoxin is produced as a product in :

 
 
 
 

681. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

683. Ovary is absent in:

 
 
 
 

684. Cap cells are found in the filament of:

 
 
 
 

685. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

689. The alga, Spirogyra are found in :

 
 
 
 

690. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

692. Fertility of the soil is increased by:

 
 
 
 

693. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

695. In Gymnocarpeae the fruiting body is :

 
 
 
 

696. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

698. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

701. The term stele was given by:

 
 
 
 

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

 
 
 
 

703. In moss, conducting tissue is made up of

 
 
 
 

704. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

706. Total parasites belong to:

 
 
 
 

707. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

709. Select the correct statement: (NEET 2016)

 
 
 
 

710. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

712. Which of the following is a parasitic algae?

 
 
 
 

713. Acellular slime mold is/are:

 
 
 
 

714. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

716. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

718. Chief constituents of bordeaux mixture are :

 
 
 
 

719. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

721. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

725. Placenta in fern is:

 
 
 
 

726. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

729. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

731. How a fern differs from a moss?

 
 
 
 

732. The fungi used as food are:

 
 
 
 

733. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

735. Ethylene oxide is widely used to:

 
 
 
 

736. To which class Riccia belongs :

 
 
 
 

737. A gill of Agaricus:

 
 
 
 

738. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

739. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

746. True sexuality is not found in:

 
 
 
 

747. Reproduction in Rhizopus is:

 
 
 
 

748. The prothallus of fern is:

 
 
 
 

749. Club moss is the common name of :

 
 
 
 

750. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

756. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

758. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

760. In moss, stomata are found:

 
 
 
 

761. The male gametes of Pinus are :

 
 
 
 

762. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

765. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. Lichens are ecologically important because :

 
 
 
 

772. The smallest bacterium is:

 
 
 
 

773. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

776. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

778. Majority of lichens are :

 
 
 
 

779. Photosynthetic bacteria have:

 
 
 
 

780. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

782. The largest alga is:

 
 
 
 

783. Bentham and Hooker placed gymnosperms:

 
 
 
 

784. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

786. Bacteria which are spherical are called:

 
 
 
 

787. The lambda phase is a:

 
 
 
 

788. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

790. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

792. The chloroplast in Ulothrix is :

 
 
 
 

793. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. Pinus gerardiana is :

 
 
 
 

798. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

801. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

803. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

806. The group algae possesses representatives belonging to kingdom:

 
 
 
 

807. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

809. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

812. Amoeba is a member of the phylum:

 
 
 
 

813. The most important property of yeast is:

 
 
 
 

814. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

816. Vascular cryptogams is the term used for:

 
 
 
 

817. The mycelium of Rhizopus is:

 
 
 
 

818. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

824. Leaf spot of groundnut is caused by :

 
 
 
 

825. Protists which are diploid reproduce sexually by:

 
 
 
 

826. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

830. Cleavage polyembryony is found in :

 
 
 
 

831. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

833. To which country Antony van Leeuwenhoek belong?

 
 
 
 

834. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

836. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

838. Plasmids are:

 
 
 
 

839. Pinus is:

 
 
 
 

840. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

842. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

845. Which is a tautonym?

 
 
 
 

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

 
 
 
 

847. Cell walls of Gram-positive bacteria contain:

 
 
 
 

848. In moss, reduction division occurs in :

 
 
 
 

849. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

851. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

852. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

854. Cryptogams include :

 
 
 
 

855. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

858. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

860. The mode of nutrition of bacteria is usually:

 
 
 
 

861. Which one of the following is a monocot?

 
 
 
 

862. The chief characteristic of bryophyta is that :

 
 
 
 

863. Embryo formation is not known in :

 
 
 
 

864. Pollination in Cycas takes place by :