Quiz_Random

1. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

3. The stele of Dryopteris is a:

 
 
 
 

4. Select the wrong statement:

 
 
 
 

5. The young leaves of Cycas have :

 
 
 
 

6. The orders generally have the uniform endings:

 
 
 
 

7. 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?

 
 
 
 

8. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

10. Funaria is :

 
 
 
 

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

 
 
 
 

12. Heterosporous pteridophytes always form:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

15. Lichens are indicators of :

 
 
 
 

16. In angiosperms double fertilization represents:

 
 
 
 

17. 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?

 
 
 
 

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

 
 
 
 

19. 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:

 
 
 
 

20. Bryophyta have been placed in cryptogams because:

 
 
 
 

21. TMV was isolated in crystalline form by:

 
 
 
 

22. Majority of lichens are :

 
 
 
 

23. Interferon is a:

 
 
 
 

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

 
 
 
 

25. The smallest bacterium is:

 
 
 
 

26. Which of the following is a parasitic algae?

 
 
 
 

27.

28. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

31. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

32. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

34. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

36. The Rhizopus is:

 
 
 
 

37. Viruses are commonly transmitted in plants through:

 
 
 
 

38. In moss, calyptra is formed from:

 
 
 
 

39. Penicillin was discovered by:

 
 
 
 

40. Germination of the seed of Pinus is :

 
 
 
 

41. To which class Riccia belongs :

 
 
 
 

42.

 

43. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Spirogyra represents the :

 
 
 
 

49. Placenta in fern is:

 
 
 
 

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

 
 
 
 

51. Black rust of wheat is caused by:

 
 
 
 

52. In moss, stomata are found:

 
 
 
 

53. The ascus of yeast contains:

 
 
 
 

54. Synzoospore is produced in:

 
 
 
 

55. Water-borne bacterial diseases are:

 
 
 
 

56. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

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

 
 
 
 

62. Parmelia belongs to :

 
 
 
 

63. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

68. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Pollination in Pinus is :

 
 
 
 

72. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

73. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

75. Detailed study of bacteriophage was made by:

 
 
 
 

76. The antibiotic is obtained from:

 
 
 
 

77. Viroids have:

 
 
 
 

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

 
 
 
 

79. Genetic material of TMV is:

 
 
 
 

80. Funaria is a Bryophyta because :

 
 
 
 

81. In Gymnosperms endosperm is a:

 
 
 
 

82. Longest known virus is:

 
 
 
 

83. Cap cells are found in the filament of:

 
 
 
 

84. Which organisms are the oldest life forms?

 
 
 
 

85. Ulothrix produces :

 
 
 
 

86. Spermatophyta are characterized by producing:

 
 
 
 

87. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

89. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. Cleavage polyembryony is found in :

 
 
 
 

93. The gametophyte of fern is as:

 
 
 
 

94. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

96. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

98. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

100. Which statement is wrong in regard to bacteria?

 
 
 
 

101. LSD is:

 
 
 
 

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

 
 
 
 

103. Meristele of fern is:

 
 
 
 

104. Embryo formation is not known in :

 
 
 
 

105. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

109. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

112. Fern phloem lacks:

 
 
 
 

113. The group algae possesses representatives belonging to kingdom:

 
 
 
 

114. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

116. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

121. Roots are absent in :

 
 
 
 

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

 
 
 
 

123. The development of sporangium in Selaginella is:

 
 
 
 

124. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

129. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. Choose the correct statement about Spirogyra:

 
 
 
 

134. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

135. The vascular bundles of Cycas stem are :

 
 
 
 

136. Vegetative reproduction in Cycas is by means of :

 
 
 
 

137. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

140. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

142. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

144. Fruits are not found in :

 
 
 
 

145. The fungi used as food are:

 
 
 
 

146.

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

 
 
 
 

148. Enteric bacteria are those bacteria that live:

 
 
 
 

149. Anoxygenic photosynthesis occurs in:

 
 
 
 

150. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

152. The zygospore in Rhizopus on germination forms:

 
 
 
 

153. In a bacteriophage, DNA is present in:

 
 
 
 

154. Which one of the following is a monocot?

 
 
 
 

155. Most primitive group of vascular plants are:

 
 
 
 

156. In moss, conducting tissue is made up of

 
 
 
 

157. Most of the algae are :

 
 
 
 

158. Mycoplasma contains:

 
 
 
 

159. Standard size of a herbarium sheet is:

 
 
 
 

160. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

162. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

165. Which is absent from the xylem of Cycas?

 
 
 
 

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

 
 
 
 

167. The leaves of Funaria are :

 
 
 
 

168. What is absent in Deuteromycetes?

 
 
 
 

169. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

171. The chloroplast in Ulothrix is :

 
 
 
 

172. Generic name of mango is:

 
 
 
 

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

 
 
 
 

174. The lambda phase is a:

 
 
 
 

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

 
 
 
 

176. Triple antigen injection or vaccine are for:

 
 
 
 

177. In Pteris, the archegonia are present:

 
 
 
 

178. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

180. Which part of Riccia bears nurse cells?

 
 
 
 

181. The spermatozoids of Cycas are :

 
 
 
 

182. Heterospory and ligulate leaves are a feature of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

188. Which is a redwood tree?

 
 
 
 

189. 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:

 
 
 
 

190. Streptomyces falls under:

 
 
 
 

191. Azolla growing in paddy fields helps in:

 
 
 
 

192. In Cycas:

 
 
 
 

193. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

199. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

205. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

207. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

210. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

211. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

213. First animal pathogenic virus was discovered by:

 
 
 
 

214. The lichens growing on rocks are called :

 
 
 
 

215. Cycas is:

 
 
 
 

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

 
 
 
 

217. Heterotrichous habit means :

 
 
 
 

218. Ergot is obtained from :

 
 
 
 

219. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

221. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

224. Metulae are found in:

 
 
 
 

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

 
 
 
 

226. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

229. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

232. Which of the following have a prokaryotic cell?

 
 
 
 

233. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

234. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

236. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

238. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

241. The nucleus of bacteria is:

 
 
 
 

242. Disease resistant plant varieties can be produced by :

 
 
 
 

243. Bacteria are placed under:

 
 
 
 

244. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

248. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

251. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

254. Aflatoxin is produced as a product in :

 
 
 
 

255. Cycas revoluta is widely grown as :

 
 
 
 

256. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

260. Which have the largest antherozoid?

 
 
 
 

261. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

263. Bacteriophage consists of:

 
 
 
 

264. 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:

 
 
 
 

265. Smallpox is caused by:

 
 
 
 

266. The chief characteristic of class Ascomycetes is:

 
 
 
 

267. Mycoplasma are:

 
 
 
 

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

 
 
 
 

269. 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:

 
 
 
 

270. The archegonia of Selaginella are differentiated by:

 
 
 
 

271. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

272. In dinoflagellates, the two flagella are:

 
 
 
 

273. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

275. Rhizophore of Selaginella is:

 
 
 
 

276. What are plasmids?

 
 
 
 

277. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

286. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

288. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

290. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

292. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

295. Coenogamete is found in:

 
 
 
 

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

 
 
 
 

297. The coralloid roots are :

 
 
 
 

298. The fungi are usually:

 
 
 
 

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

 
 
 
 

300. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

302. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

304. Embryophyta includes:

 
 
 
 

305. What is a vector?

 
 
 
 

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

 
 
 
 

307. Cycas is :

 
 
 
 

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

 
 
 
 

309. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

312. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. Chemosynthetic bacteria are:

 
 
 
 

316. Ovules are not found enclosed in ovary in :

 
 
 
 

317. Oswald Tippo’s classification was based on :

 
 
 
 

318. The leafy fern plant represents the:

 
 
 
 

319. The largest alga is:

 
 
 
 

320. NBG of Lucknow is now named as:

 
 
 
 

321. Number of capsomeres forming capsid of TMV is:

 
 
 
 

322. Mucilaginous canals in Cycas are found in :

 
 
 
 

323. The most important property of yeast is:

 
 
 
 

324. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

327. Botulinum toxin effects:

 
 
 
 

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

 
 
 
 

329. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. The disease symptom necrosis refers to :

 
 
 
 

333. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

335. The antherozoids of Funaria are :

 
 
 
 

336. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

338. Among the algae kelps are :

 
 
 
 

339. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

341. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

344. Vascular cryptogams is the term used for:

 
 
 
 

345. Psilotum is:

 
 
 
 

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

 
 
 
 

347. Embryophyta includes :

 
 
 
 

348. Ovary is absent in:

 
 
 
 

349. Most resistant spore in bacteria is:

 
 
 
 

350. Ginkgo biloba is a:

 
 
 
 

351. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

353. Viruses have:

 
 
 
 

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

 
 
 
 

355. Which of the following is true for Selaginella?

 
 
 
 

356. Water-net is the name of:

 
 
 
 

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

 
 
 
 

358. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

360. Most primitive embryophytes are placed in:

 
 
 
 

361. The gametophyte of fern bears:

 
 
 
 

362. Virus and bacteriophage are made-up of:

 
 
 
 

363. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

366. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

368. In a diplontic life cycle:

 
 
 
 

369. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

372. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

375. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

380. The chloroplast of Chlamydomonas are:

 
 
 
 

381. Seeds are characteristically found in :

 
 
 
 

382. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

384. The seedless plants which possess vascular tissues are:

 
 
 
 

385. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

387. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

391. Which is the correct statement about Selaginella?

 
 
 
 

392. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

395. In moss, sporogenous tissue arises from:

 
 
 
 

396. Circular DNA is seen in:

 
 
 
 

397. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

399. Photosynthetic protists belong to:

 
 
 
 

400. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

403. The alga, Spirogyra are found in :

 
 
 
 

404. The megaspore of Selaginella on germination produces:

 
 
 
 

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

 
 
 
 

406. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

407. Lichens form the first community in

 
 
 
 

408. Zoogametes are not found in:

 
 
 
 

409. Meiosis in Ulothrix takes place:

 
 
 
 

410. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

411. Who discovered cyanophages?

 
 
 
 

412. Red rot of sugarcane is caused by :

 
 
 
 

413. Pneumonia is caused by:

 
 
 
 

414. Most common type of conjugation in Spirogyra is :

 
 
 
 

415. Late blight of potato is caused by:

 
 
 
 

416. Multicellular and jacketed sex organs are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

419. Lichens show :

 
 
 
 

420. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

422. What is the role of nitrifying bacteria?

 
 
 
 

423. Mycoplasmas are not viruses in nature because:

 
 
 
 

424. To which country Antony van Leeuwenhoek belong?

 
 
 
 

425. In binomial system most of the words are:

 
 
 
 

426. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

427. The chief characteristic of bryophyta is that :

 
 
 
 

428. Which fixes atmospheric nitrogen?

 
 
 
 

429. Antibiotic has been extracted from :

 
 
 
 

430. Which of the following is a heterosporous pteridophyte?

 
 
 
 

431. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

434. The prothallus of fern is:

 
 
 
 

435. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

437. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

439. Where does meiosis occur in yeast?

 
 
 
 

440. Azolla and Salvinia both are:

 
 
 
 

441. Antibiotics cure the disease by:

 
 
 
 

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

 
 
 
 

443. The tree fern is:

 
 
 
 

444. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

445. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

447. Chemosynthetic bacteria are:

 
 
 
 

448. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

451. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

453. . Tapetum develops in:

 
 
 
 

454. What is special feature of fern archegonia?

 
 
 
 

455. The largest known bacterium is:

 
 
 
 

456. Which of the following are absent in Mycoplasma?

 
 
 
 

457. Which of the following are included in Tracheophyta?

 
 
 
 

458. Cell walls of Gram-positive bacteria contain:

 
 
 
 

459. Yeast is a source of:

 
 
 
 

460. Lichen show :

 
 
 
 

461. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

463. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

465. White rust of crucifers is caused by:

 
 
 
 

466. Select the correct statement: (NEET 2016)

 
 
 
 

467. Quarantine regulations are concerned with:

 
 
 
 

468. The source of litmus is :

 
 
 
 

469. Cellular slime mold is:

 
 
 
 

470. The first to isolate a plant virus was:

 
 
 
 

471. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

476. The zoospores of Ulothrix are :

 
 
 
 

477. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

480. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

485. Seeds are characteristically found in:

 
 
 
 

486. The archegonia in Selaginella develop on:

 
 
 
 

487. Funaria is :

 
 
 
 

488. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

490. Cryptogams include :

 
 
 
 

491. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

493. In moss, reduction division occurs in :

 
 
 
 

494. Early blight of potato is caused by:

 
 
 
 

495. The ferns are usually found:

 
 
 
 

496. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

501. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

503. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

505. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

508. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

511. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

514. Iodine is obtained from :

 
 
 
 

515. Bacteriophages have been used as:

 
 
 
 

516. Which bacteria convert nitrate into nitrogen?

 
 
 
 

517. Most of the lichens are composed of :

 
 
 
 

518. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. What is mycorrhiza?

 
 
 
 

522. Green plants are classified as :

 
 
 
 

523. In moss, sporophyte is formed on:

 
 
 
 

524. Ovules are not found enclosed in ovary in :

 
 
 
 

525. Broad spectrum antibiotic is, which:

 
 
 
 

526. Botulism is a:

 
 
 
 

527. All archaebacteria lack:

 
 
 
 

528. Photoautotrophic bacteria have:

 
 
 
 

529. Fruits are not found in:

 
 
 
 

530. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

533. Banana bunchy top is caused by :

 
 
 
 

534. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

538. 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?

 
 
 
 

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

 
 
 
 

540. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

542. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

545. Mycoplasma are sensitive to:

 
 
 
 

546. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

548. Male gametophyte of Selaginella is found:

 
 
 
 

549. Which causes red tide?

 
 
 
 

550. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

553. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

555. Polystelic condition is found in:

 
 
 
 

556. The phloem of vascular system of Cycas is :

 
 
 
 

557. Which is an edible fungus?

 
 
 
 

558. Pteridophyta are also called:

 
 
 
 

559. In Pteris, the roots are:

 
 
 
 

560. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

562. In Cycas which structure is equivalent to stamen?

 
 
 
 

563. Linnaeus is credited with introducing:

 
 
 
 

564. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

566. Black rust of wheat is caused by:

 
 
 
 

567. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

569. Downy mildew disease is caused by :

 
 
 
 

570. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

572. Which is not found in bacteria?

 
 
 
 

573. Bentham and Hooker placed gymnosperms:

 
 
 
 

574. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

580. Cycas plant in appearance resembles :

 
 
 
 

581. Who discovered heterothallism in fungi?

 
 
 
 

582. Clostridium can:

 
 
 
 

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

 
 
 
 

584. Fruiting body of lichens is :

 
 
 
 

585. The fungi are mostly:

 
 
 
 

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

 
 
 
 

587. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. Gram stain is used to:

 
 
 
 

591. Reproduction in Cycas takes place by :

 
 
 
 

592. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

595. Agar-agar is obtained from:

 
 
 
 

596. Which of the following have algal zone?

 
 
 
 

597. Red rot of sugarcane is caused by:

 
 
 
 

598. Mixed cropping helps :

 
 
 
 

599. Streptomycin is obtained from:

 
 
 
 

600. Fairy ring is the name given to:

 
 
 
 

601. Leaf spot of groundnut is caused by :

 
 
 
 

602. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

607. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

609. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

614. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

616. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

618. Which of the following does not contain chlorophyll?

 
 
 
 

619.

620. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

623. Each chloroplast in Spirogyra bears :

 
 
 
 

624. Fertility of the soil is increased by:

 
 
 
 

625. Heterocysts are found in :

 
 
 
 

626. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

628. Lichens are ecologically important because :

 
 
 
 

629. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

633. The plants of Funaria grow :

 
 
 
 

634. Milk is converted to curd by:

 
 
 
 

635. In Cycas the fertilization is:

 
 
 
 

636. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

639. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

641. Which is an exception to cell theory?

 
 
 
 

642. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

644. Saccharomyces is used in:

 
 
 
 

645. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

647. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

649. Plasmids are:

 
 
 
 

650. Common phycobiont in a lichen is :

 
 
 
 

651. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

654. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

656. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

659. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

663. Red rot of sugarcane is caused by :

 
 
 
 

664. Rhizopus and yeast are usually:

 
 
 
 

665. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

667. The disease apple scab is caused by:

 
 
 
 

668. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

669. Fruits are not found in Cycas because:

 
 
 
 

670. Sporophyte of Funaria is :

 
 
 
 

671. Bivalved siliceous shell or frustule occur in:

 
 
 
 

672. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

675. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

677. What is streptomycin?

 
 
 
 

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

 
 
 
 

679. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

680. The role of meiosis is for:

 
 
 
 

681. John Hutchinson divided dicots into two divisions:

 
 
 
 

682. Tautonyms are illegitimate in:

 
 
 
 

683. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

685. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

689. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

692. Penicillin is obtained from:

 
 
 
 

693. Which condition is found in Cycas?

 
 
 
 

694. Which of the following statement is correct?

 
 
 
 

695. The chromosomal number in:

 
 
 
 

696. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

699. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

702. Wine turns sour because of:

 
 
 
 

703. Acetobacter is useful in:

 
 
 
 

704. Fern plants are:

 
 
 
 

705. All algae have:

 
 
 
 

706. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

707. Green plants are classified as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

710. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

712. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

717. Bacteria which are spherical are called:

 
 
 
 

718. Ethylene oxide is widely used to:

 
 
 
 

719. The similarity between cyanobacteria and bacteria:

 
 
 
 

720. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

724. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

726. Smut of maize is caused by :

 
 
 
 

727. Some biologists have used the term Mycetozoa for:

 
 
 
 

728. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

730. Pinus is:

 
 
 
 

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

 
 
 
 

732. Mostly type of zygospore in Ulothrix is:

 
 
 
 

733. Which is a tautonym?

 
 
 
 

734. All protozoans possess:

 
 
 
 

735. Which of the following shows heterotrichous habit?

 
 
 
 

736. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

739. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

742. Cyathia is characterized by:

 
 
 
 

743. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

745. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

747. Mycoplasma was discovered by:

 
 
 
 

748. Pasteurized milk is:

 
 
 
 

749. Ergot of rye is caused by:

 
 
 
 

750. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

752. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

753. Vascular cryptogam is the term used for :

 
 
 
 

754. Who named prion?

 
 
 
 

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

 
 
 
 

756. Diploxylic vascular bundles are found in:

 
 
 
 

757. Fern prothallus produces:

 
 
 
 

758. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

760. Which of the following is sago palm?

 
 
 
 

761. Bacteria were first discovered by:

 
 
 
 

762. Facultative parasite is:

 
 
 
 

763. Who discovered streptomycin?

 
 
 
 

764. The middle sterile part of capsule is called:

 
 
 
 

765. The fern plant is:

 
 
 
 

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

 
 
 
 

767. 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:

 
 
 
 

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

 
 
 
 

769. Late blight of potato is caused by :

 
 
 
 

770. Desired type of Cycas can be grown by:

 
 
 
 

771. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

774. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

777. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

779. The sporophyte of Riccia is :

 
 
 
 

780. Pollination drop is:

 
 
 
 

781. Lichens reproduce by :

 
 
 
 

782. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

784. Methanogens belong to:

 
 
 
 

785. Select the wrong statement:

 
 
 
 

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

 
 
 
 

787. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

789. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

791. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

796. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

799. Sleeping sickness disease in man is caused by:

 
 
 
 

800. True sexuality is not found in:

 
 
 
 

801. Photosynthetic bacteria have:

 
 
 
 

802. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

805. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

812. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

814. In Gymnocarpeae the fruiting body is :

 
 
 
 

815. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

817. The sporophyte of Riccia is represented by :

 
 
 
 

818. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

821. Total parasites belong to:

 
 
 
 

822. Proembryo in Pinus is :

 
 
 
 

823. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

825. Cyanophage is a virus that attacks:

 
 
 
 

826. 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?

 
 
 
 

827. Ovary is absent in :

 
 
 
 

828. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

831. Woody climbers are known as :

 
 
 
 

832. In moss, peristomial teeth are:

 
 
 
 

833. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

834. The sori in Dryopteris are found on:

 
 
 
 

835. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. Facultative saprophyte is:

 
 
 
 

840. Fern prothallus is:

 
 
 
 

841. Helotism word is used for the symbiosis between :

 
 
 
 

842. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

845. Sporophyte of fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

848. The order generally ends with:

 
 
 
 

849. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

855. Which among the following is a shrub?

 
 
 
 

856. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

858. The DNA of E coli is:

 
 
 
 

859. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

861. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

864. Germ theory of disease was proposed by: