Quiz_Random

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

 
 
 
 

2. Lichens are pioneers of vegetation in a :

 
 
 
 

3. In tracheophyta:

 
 
 
 

4. Which causes red tide?

 
 
 
 

5. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

11. In a diplontic life cycle:

 
 
 
 

12. The sporophyte of Riccia is :

 
 
 
 

13. The role of meiosis is for:

 
 
 
 

14. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

17. Transfusion tissue is present in the leaflet of:

 
 
 
 

18. Tautonyms are illegitimate in:

 
 
 
 

19. Green plants are classified as :

 
 
 
 

20. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. The source of litmus is :

 
 
 
 

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

 
 
 
 

26. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

29. What are plasmids?

 
 
 
 

30. Rhizopus and yeast are usually:

 
 
 
 

31. Viruses have:

 
 
 
 

32. Heterotrichous habit means :

 
 
 
 

33. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

34. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

36. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

38. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

40. Ovary is absent in :

 
 
 
 

41. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

45. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. What is streptomycin?

 
 
 
 

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

 
 
 
 

50. Gymnosperms could also be called as:

 
 
 
 

51. LSD is:

 
 
 
 

52. Spirogyra differs from moss protonema in having :

 
 
 
 

53. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

57. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

59. 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:

 
 
 
 

60. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

62. The alga, Spirogyra are found in :

 
 
 
 

63. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

65. Circular DNA is seen in:

 
 
 
 

66. Climbers are found in genus:

 
 
 
 

67. The tallest moss in the world is :

 
 
 
 

68. Isomorphic type alternation of generation is found in:

 
 
 
 

69. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

72. Redness of red sea is due to :

 
 
 
 

73. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

78. Mucilaginous canals in Cycas are found in :

 
 
 
 

79. The tree fern is:

 
 
 
 

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

 
 
 
 

81. The fungi are mostly:

 
 
 
 

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

 
 
 
 

83. In binomial system most of the words are:

 
 
 
 

84. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

87. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. Halophiles are the bacteria that require for growth:

 
 
 
 

92. Bryophyta have a special character from other plants:

 
 
 
 

93. In Funaria :

 
 
 
 

94. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

96. The lichens growing on rocks are called :

 
 
 
 

97. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

100. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

104. The stele of Dryopteris is a:

 
 
 
 

105. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

108. How a fern differs from a moss?

 
 
 
 

109. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Chemosynthetic bacteria are:

 
 
 
 

113. Maximum diversity of life forms occurs in :

 
 
 
 

114. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

116. The fungi are usually:

 
 
 
 

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

 
 
 
 

118. The male gametes of Pinus are :

 
 
 
 

119. 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?

 
 
 
 

120. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

122. The leaves of Funaria are :

 
 
 
 

123. The antherozoids of Funaria are :

 
 
 
 

124. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. 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?

 
 
 
 

129. Virus and bacteriophage are made-up of:

 
 
 
 

130. Funaria is a Bryophyta because :

 
 
 
 

131. Cycas is:

 
 
 
 

132. 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?

 
 
 
 

133. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

138. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

143. Liverworts are included in :

 
 
 
 

144. The Rhizopus is:

 
 
 
 

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

 
 
 
 

146. The smallest unit of classification is:

 
 
 
 

147. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

150. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

152. Botulinum toxin effects:

 
 
 
 

153. In Cycas:

 
 
 
 

154. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

155. Smut of maize is caused by :

 
 
 
 

156.

157. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

159. Heterospory and ligulate leaves are a feature of:

 
 
 
 

160. The megaspore of Selaginella on germination produces:

 
 
 
 

161. Cycas is :

 
 
 
 

162. Most common type of conjugation in Spirogyra is :

 
 
 
 

163. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

166. The upper region of moss capsule is :

 
 
 
 

167. Which organisms are the oldest life forms?

 
 
 
 

168. Azolla and Salvinia both are:

 
 
 
 

169. The sporangia of Selaginella are attached:

 
 
 
 

170. Male gametophyte of Selaginella is found:

 
 
 
 

171. In dinoflagellates, the two flagella are:

 
 
 
 

172. The ferns are usually found:

 
 
 
 

173. . Tapetum develops in:

 
 
 
 

174. Quarantine regulations are concerned with:

 
 
 
 

175. Smallpox is caused by:

 
 
 
 

176. Placenta in fern is:

 
 
 
 

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

 
 
 
 

178. Plasmids are:

 
 
 
 

179. The disease symptom necrosis refers to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

185. Which bacteria convert nitrate into nitrogen?

 
 
 
 

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

 
 
 
 

187. In moss, reduction division occurs in :

 
 
 
 

188. The spur of Pinus roxburghii has :

 
 
 
 

189. Late blight of potato is caused by :

 
 
 
 

190. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

193. Cap cells are found in the filament of:

 
 
 
 

194. Broad spectrum antibiotic is, which:

 
 
 
 

195. John Hutchinson divided dicots into two divisions:

 
 
 
 

196. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

199. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

201. Pasteurization of milk involves heating for:

 
 
 
 

202. 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:

 
 
 
 

203. The archegonia of Selaginella are differentiated by:

 
 
 
 

204. Rhizophore of Selaginella is:

 
 
 
 

205. The group algae possesses representatives belonging to kingdom:

 
 
 
 

206. Genetic material of TMV is:

 
 
 
 

207. Pythium debaryanum is the causative agent of:

 
 
 
 

208. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

209. A gill of Agaricus:

 
 
 
 

210. Pneumonia is caused by:

 
 
 
 

211. The fungi used as food are:

 
 
 
 

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

 
 
 
 

213. Ovules are not found enclosed in ovary in :

 
 
 
 

214. Pinus is:

 
 
 
 

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

 
 
 
 

216. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

219. Which of the following are included in Tracheophyta?

 
 
 
 

220. Ulothrix produces :

 
 
 
 

221. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

223. Lichens form the first community in

 
 
 
 

224. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

225. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

227. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

230. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

232. Select the wrong statement:

 
 
 
 

233. Fruits are not found in:

 
 
 
 

234. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

236. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

238. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

240. Cryptogams include :

 
 
 
 

241. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

243. Coenogamete is found in:

 
 
 
 

244. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

247. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

249. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

251. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

253. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

255. Milk is converted to curd by:

 
 
 
 

256. Water-borne bacterial diseases are:

 
 
 
 

257. Which of the following is a heterosporous pteridophyte?

 
 
 
 

258. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

262. The coralloid roots are :

 
 
 
 

263. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. The DNA of E coli is:

 
 
 
 

268. The chromosomal number in:

 
 
 
 

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

 
 
 
 

270. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

272. Banana bunchy top is caused by :

 
 
 
 

273. The development of Selaginella embryo is:

 
 
 
 

274. Where does meiosis occur in yeast?

 
 
 
 

275. All archaebacteria lack:

 
 
 
 

276. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

280. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. The fern plant is:

 
 
 
 

284. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

287. Viruses are considered to be:

 
 
 
 

288. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

290. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

291. Spirogyra represents the :

 
 
 
 

292. To which country Antony van Leeuwenhoek belong?

 
 
 
 

293. Sexual reproduction in Rhizopus is by:

 
 
 
 

294. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

295. The smallest bacterium is:

 
 
 
 

296. Germ theory of disease was proposed by:

 
 
 
 

297. The prothallus of fern is:

 
 
 
 

298. Which of the following is true for viruses?

 
 
 
 

299. Mostly type of zygospore in Ulothrix is:

 
 
 
 

300. In Cycas which structure is equivalent to stamen?

 
 
 
 

301. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

303. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

306. Embryo formation is not known in :

 
 
 
 

307. Pasteur is famous for his:

 
 
 
 

308. Most primitive embryophytes are placed in:

 
 
 
 

309. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

311. In moss, conducting tissue is made up of

 
 
 
 

312. Cycas plant in appearance resembles :

 
 
 
 

313. Viroids have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

318. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

321. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

323. Club moss and Peat moss belong to:

 
 
 
 

324. Photosynthetic protists belong to:

 
 
 
 

325. The first to isolate a plant virus was:

 
 
 
 

326. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

328. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. Viruses are commonly transmitted in plants through:

 
 
 
 

333. Multicellular and jacketed sex organs are found in :

 
 
 
 

334. One of the distinctive feature of Spirogyra is :

 
 
 
 

335. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

338. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

340. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

345. Asexual reproductive body of Volvox is called:

 
 
 
 

346. Lichens reproduce by :

 
 
 
 

347. In moss, stomata are found:

 
 
 
 

348. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

349. Lichens reproduce by :

 
 
 
 

350. Which among the following is a shrub?

 
 
 
 

351. Helotism word is used for the symbiosis between :

 
 
 
 

352. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

354. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. Mixed cropping helps :

 
 
 
 

358. Some diseases caused by bacteria are:

 
 
 
 

359. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

361. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

363. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

368. Diphtheria is caused by:

 
 
 
 

369. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

371. Who named prion?

 
 
 
 

372. Winged pollen grains are found in :

 
 
 
 

373. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

376. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380. In Pteris, the roots are:

 
 
 
 

381. The vascular bundles of Cycas stem are :

 
 
 
 

382. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

384. Mycoplasma are:

 
 
 
 

385. Interferon is a:

 
 
 
 

386. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

387. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

389. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

392. Ethylene oxide is widely used to:

 
 
 
 

393. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

395. Which lichen is called Reindeer moss?

 
 
 
 

396. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

398. The phloem of vascular system of Cycas is :

 
 
 
 

399. Majority of lichens are :

 
 
 
 

400. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

403. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

406. Protistan algae obtain their food as:

 
 
 
 

407. Which is not found in bacteria?

 
 
 
 

408. Woody climbers are known as :

 
 
 
 

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

 
 
 
 

410. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

412. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

415. Meristele of fern is:

 
 
 
 

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

 
 
 
 

417. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

419. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

423. Citrus canker is caused by:

 
 
 
 

424. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

426. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

428. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. Detailed study of bacteriophage was made by:

 
 
 
 

432. In Herpes virus DNA is:

 
 
 
 

433. Sleeping sickness disease in man is caused by:

 
 
 
 

434. 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:

 
 
 
 

435. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

440. Pollination in Pinus is :

 
 
 
 

441. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

445. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

447. Sporophyte of Funaria is :

 
 
 
 

448. Absorptive nutrition is:

 
 
 
 

449. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

453. Antibiotic has been extracted from :

 
 
 
 

454. The teeth of peristome of Funaria are :

 
 
 
 

455. Pollination drop is:

 
 
 
 

456. The order generally ends with:

 
 
 
 

457. The sporangium of fern contains nearly:

 
 
 
 

458. Virion refers to:

 
 
 
 

459. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

461. Azolla growing in paddy fields helps in:

 
 
 
 

462. Which part of Riccia bears nurse cells?

 
 
 
 

463. Enteric bacteria are those bacteria that live:

 
 
 
 

464. Who discovered streptomycin?

 
 
 
 

465. The central part of Funaria axis is :

 
 
 
 

466. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

469. Germination of the seed of Pinus is :

 
 
 
 

470. Which of the following is a monocot?

 
 
 
 

471. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

476. Which is a redwood tree?

 
 
 
 

477. Which have the largest antherozoid?

 
 
 
 

478. Nannandria are:

 
 
 
 

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

 
 
 
 

480. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

482. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

484. Vascular cryptogams is the term used for:

 
 
 
 

485. Which group of algae have an incipient nucleus?

 
 
 
 

486. Which is not true for Escherichia coli?

 
 
 
 

487. Funaria is :

 
 
 
 

488. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

490. Leaf spot of groundnut is caused by :

 
 
 
 

491. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

494. Protists which are diploid reproduce sexually by:

 
 
 
 

495. Downy mildew disease is caused by :

 
 
 
 

496. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

499. Small epidermal swellings due to infection are called :

 
 
 
 

500. Linnaeus is credited with introducing:

 
 
 
 

501. Bentham and Hooker placed gymnosperms:

 
 
 
 

502. Indusium in Dryopteris is:

 
 
 
 

503. Black rust of wheat is caused by:

 
 
 
 

504. All algae have:

 
 
 
 

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

 
 
 
 

506. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

510. Botulism is a:

 
 
 
 

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

 
 
 
 

512. True sexuality is not found in:

 
 
 
 

513. E coli is a:

 
 
 
 

514. In moss, sporophyte is formed on:

 
 
 
 

515. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

520. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

524. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. How is moss different from fern?

 
 
 
 

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

 
 
 
 

534. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

535. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

538. The largest alga is:

 
 
 
 

539. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

541. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

543. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

547. Synzoospore is produced in:

 
 
 
 

548. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

551. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

553. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

555. Ergot of rye is caused by:

 
 
 
 

556. Which is an exception to cell theory?

 
 
 
 

557. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

559. Pseudomycelium is found in:

 
 
 
 

560. All protozoans possess:

 
 
 
 

561. Which of the following shows heterotrichous habit?

 
 
 
 

562. Fertility of the soil is increased by:

 
 
 
 

563. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

565. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

569. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

571. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

574. The genetic material of poxvirus is:

 
 
 
 

575. Endemic plants are characterised by their:

 
 
 
 

576. Spermatophyta are characterized by producing:

 
 
 
 

577. Which of the following does not contain chlorophyll?

 
 
 
 

578. An alga which is rich in proteins:

 
 
 
 

579. The most important property of yeast is:

 
 
 
 

580. Funaria are commonly found :

 
 
 
 

581. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

583. Bacteriophage consists of:

 
 
 
 

584. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

586. Standard size of a herbarium sheet is:

 
 
 
 

587. The most primitive vascular plants is:

 
 
 
 

588. Little leaf disease of Brinjal is caused by:

 
 
 
 

589.

590. Cycas is similar to a mustard plant :

 
 
 
 

591. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

593. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

595. Penicillin is obtained from:

 
 
 
 

596. The sexual reproductive organs in Rhizopus are:

 
 
 
 

597. The flagella of Chlamydomonas are:

 
 
 
 

598. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

600. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

602. Black rust of wheat is caused by:

 
 
 
 

603. In moss, peristomial teeth are:

 
 
 
 

604. Photosynthetic bacteria have:

 
 
 
 

605. Fairy ring is the name given to:

 
 
 
 

606. Nitrogen-fixing bacteria may be located:

 
 
 
 

607. Total parasites belong to:

 
 
 
 

608. The ascus of yeast contains:

 
 
 
 

609. Embryophyta includes :

 
 
 
 

610. Which of the following statements is not correct?

 
 
 
 

611. Most of the algae are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

615. The nucleus of bacteria is:

 
 
 
 

616. The prothallus of fern represents the plant:

 
 
 
 

617. Which of the following is true for Selaginella?

 
 
 
 

618. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

621. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

623. The sporangiophores in Rhizopus are:

 
 
 
 

624. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

626. Mycoplasma contains:

 
 
 
 

627. The lambda phase is a:

 
 
 
 

628. The rhizoids of Funaria are :

 
 
 
 

629. The gametophyte of fern is as:

 
 
 
 

630. Infective part of virus was discovered by:

 
 
 
 

631. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

633.

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

 
 
 
 

635. The seedless plants which possess vascular tissues are:

 
 
 
 

636. White rust of crucifers is caused by:

 
 
 
 

637. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

640. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

642. Psilotum is:

 
 
 
 

643. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

645. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

647. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

649. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

652. The chloroplast in Ulothrix is :

 
 
 
 

653. The sporophyte of Riccia is represented by :

 
 
 
 

654. Longest known virus is:

 
 
 
 

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

 
 
 
 

656. Which fixes atmospheric nitrogen?

 
 
 
 

657. What is absent in Deuteromycetes?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

661. Gram stain is used to:

 
 
 
 

662. Polystelic condition is found in:

 
 
 
 

663. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

665. Iodine is obtained from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

668. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

672. Streptomyces falls under:

 
 
 
 

673. The gametophyte of moss has distinct phases :

 
 
 
 

674. Which is absent from the xylem of Cycas?

 
 
 
 

675. Which of the following have algal zone?

 
 
 
 

676. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

679. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

683. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

687. Fern phloem lacks:

 
 
 
 

688. Winged seeds are found in :

 
 
 
 

689. Ovary is absent in:

 
 
 
 

690. The roots of Cycas are :

 
 
 
 

691. What is a vector?

 
 
 
 

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

 
 
 
 

693. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

696. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

698. Yeast is a source of:

 
 
 
 

699. The sori in Dryopteris are found on:

 
 
 
 

700. Which of the following are included in Tracheophyta?

 
 
 
 

701. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

703. Which one of the following is a monocot?

 
 
 
 

704. NBG of Lucknow is now named as:

 
 
 
 

705. Acetobacter is useful in:

 
 
 
 

706. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

708. Photoautotrophic bacteria have:

 
 
 
 

709. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

711. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

714. The microsporophylls on the cone of Cycas are :

 
 
 
 

715. Aflatoxin is produced by:

 
 
 
 

716. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

717. Rhizoids of Riccia are :

 
 
 
 

718. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

720. The two conjugating gametangia of Rhizopus are:

 
 
 
 

721. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

726. Heterosporous pteridophytes always form:

 
 
 
 

727. Citrus canker is caused by :

 
 
 
 

728. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

730. Metulae are found in:

 
 
 
 

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

 
 
 
 

732. Red rot of sugarcane is caused by :

 
 
 
 

733. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

735. Selaginella differs from Moss in having:

 
 
 
 

736. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

738. Cell walls of Gram-positive bacteria contain:

 
 
 
 

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

 
 
 
 

740. Roots are absent in :

 
 
 
 

741. The chief characteristic of class Ascomycetes is:

 
 
 
 

742. Which of the following lichens is harmful?

 
 
 
 

743. Usually, bacteria reproduce by:

 
 
 
 

744. 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:

 
 
 
 

745. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

747. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

750. The spermatozoids of Cycas are :

 
 
 
 

751. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

754. First animal pathogenic virus was discovered by:

 
 
 
 

755. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

767. Fruits are not found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. TMV was isolated in crystalline form by:

 
 
 
 

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

 
 
 
 

773. Which of the following is sago palm?

 
 
 
 

774. Wine turns sour because of:

 
 
 
 

775. Bivalved siliceous shell or frustule occur in:

 
 
 
 

776. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

779. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

780. The disease apple scab is caused by:

 
 
 
 

781. Lichens are ecologically important because :

 
 
 
 

782. Ergot is obtained from :

 
 
 
 

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

 
 
 
 

784. Vascular tissue is found in :

 
 
 
 

785. Green plants are classified as:

 
 
 
 

786. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

788. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

790. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

792. 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:

 
 
 
 

793. Discovery of penicillin was based on:

 
 
 
 

794. The truncated cone of HIV consists of:

 
 
 
 

795. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

797.

 

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

 
 
 
 

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

 
 
 
 

800. Cycas revoluta is widely grown as :

 
 
 
 

801. Reproduction in Rhizopus is:

 
 
 
 

802. Etiology includes the study of :

 
 
 
 

803. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

805. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

807. The archegonia in Selaginella develop on:

 
 
 
 

808. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

810. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

812. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

814. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

816. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

818. Ectocarpus produces:

 
 
 
 

819. Black rust of wheat is caused by:

 
 
 
 

820. Lichen show :

 
 
 
 

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

 
 
 
 

822. The orders generally have the uniform endings:

 
 
 
 

823. 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:

 
 
 
 

824. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

826. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

828. The photosynthetic protists are:

 
 
 
 

829. Centric discoid form of diatom is:

 
 
 
 

830. Which of the following have a prokaryotic cell?

 
 
 
 

831. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

834. Number of capsomeres forming capsid of TMV is:

 
 
 
 

835. Siphonogamy is found in:

 
 
 
 

836. Mycoplasma is different from bacteria due to:

 
 
 
 

837. Which statement is wrong in regard to bacteria?

 
 
 
 

838. Cleavage polyembryony is found in :

 
 
 
 

839. Fern plants are:

 
 
 
 

840. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

842. Each chloroplast in Spirogyra bears :

 
 
 
 

843. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

845. Disease resistant plant varieties can be produced by :

 
 
 
 

846. The mycelium of Rhizopus is:

 
 
 
 

847. Pteridophytes are also known as :

 
 
 
 

848. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

853. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

855. Bacteria are placed under:

 
 
 
 

856. Which is a fungicide?

 
 
 
 

857. The development of sporangium in Selaginella is:

 
 
 
 

858. Agar-agar is obtained from:

 
 
 
 

859. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

861. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

862. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

863. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

864. Select the wrong statement: