Quiz_Random

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

 
 
 
 

2. Sleeping sickness disease in man is caused by:

 
 
 
 

3. Sporophyte of fern is:

 
 
 
 

4. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

5. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

7. Clostridium can:

 
 
 
 

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

 
 
 
 

9. Methanogens belong to:

 
 
 
 

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

 
 
 
 

11. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

13. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

16. What is absent in Deuteromycetes?

 
 
 
 

17. Embryophyta includes :

 
 
 
 

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

 
 
 
 

19. Which is an exception to cell theory?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

24. Virion refers to:

 
 
 
 

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

 
 
 
 

26. Which lichen is called Reindeer moss?

 
 
 
 

27. Green plants are classified as :

 
 
 
 

28. Cycas revoluta is widely grown as :

 
 
 
 

29. E coli is a:

 
 
 
 

30. The term stele was given by:

 
 
 
 

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

 
 
 
 

32. Which is a fungicide?

 
 
 
 

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

 
 
 
 

34. Fruits are not found in:

 
 
 
 

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

 
 
 
 

36. The chloroplast in Ulothrix is :

 
 
 
 

37. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

39. Red rot of sugarcane is caused by :

 
 
 
 

40. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

41. Standard size of a herbarium sheet is:

 
 
 
 

42. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

44. In a diplontic life cycle:

 
 
 
 

45. The rhizoids of Funaria are :

 
 
 
 

46. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

48. The archegonia in Selaginella develop on:

 
 
 
 

49. Which is an edible fungus?

 
 
 
 

50. What are Cyanobacteria?

 
 
 
 

51. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. The disease symptom necrosis refers to :

 
 
 
 

57. Ovules are not found enclosed in ovary of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

60. Embryo formation is not known in :

 
 
 
 

61. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

64. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

66. Ethylene oxide is widely used to:

 
 
 
 

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

 
 
 
 

68. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

70. Fern prothallus produces:

 
 
 
 

71. Placenta in fern is:

 
 
 
 

72. Select the wrong statement:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

76. Mixed cropping helps :

 
 
 
 

77. Bacteria are considered to be plants because they:

 
 
 
 

78. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

80. 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?

 
 
 
 

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

 
 
 
 

82. Leprosy is caused by:

 
 
 
 

83. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

86. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

88. 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:

 
 
 
 

89. Bacteria differ from viruses in being sensitive to:

 
 
 
 

90. Pythium debaryanum is the causative agent of:

 
 
 
 

91. Spores of which plants have chloroplast:

 
 
 
 

92. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

94. Some biologists have used the term Mycetozoa for:

 
 
 
 

95. Red rot of sugarcane is caused by :

 
 
 
 

96. Selaginella differs from Moss in having:

 
 
 
 

97. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

103. In moss, reduction division occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

106. Pteridophyta are also called:

 
 
 
 

107. Spirogyra represents the :

 
 
 
 

108. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

111. Pythium debaryanum is the causative agent of:

 
 
 
 

112. Ergot is obtained from :

 
 
 
 

113. Lichen show :

 
 
 
 

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

 
 
 
 

115. Climbers are found in genus:

 
 
 
 

116. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

119. The development of Selaginella embryo is:

 
 
 
 

120. Usually, bacteria reproduce by:

 
 
 
 

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

 
 
 
 

122. Ovary is absent in :

 
 
 
 

123. Mycoplasma is different from bacteria due to:

 
 
 
 

124. . Tapetum develops in:

 
 
 
 

125. Cleavage polyembryony is found in :

 
 
 
 

126. Water-net is the name of:

 
 
 
 

127. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

129. Discovery of penicillin was based on:

 
 
 
 

130. Detailed study of bacteriophage was made by:

 
 
 
 

131. Bacteria were first discovered by:

 
 
 
 

132. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

136. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

138. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. Amoeba is a member of the phylum:

 
 
 
 

142. Fairy ring is the name given to:

 
 
 
 

143. 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:

 
 
 
 

144. Rhizopus belongs to:

 
 
 
 

145. Lichens form the first community in

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

150. Which of the following applies to Selaginella?

 
 
 
 

151. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

155. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

159. Generic name of mango is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

162. Which is a redwood tree?

 
 
 
 

163. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

165. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

170. The prothallus of fern represents the plant:

 
 
 
 

171. Most primitive embryophytes are placed in :

 
 
 
 

172. Cycas is similar to a mustard plant :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

176. John Hutchinson divided dicots into two divisions:

 
 
 
 

177. What is mycorrhiza?

 
 
 
 

178. Most of the lichens are composed of :

 
 
 
 

179. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

182. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

184. Bentham and Hooker placed gymnosperms:

 
 
 
 

185. Meristele of fern is:

 
 
 
 

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

 
 
 
 

187. Vegetative reproduction in Cycas is by means of :

 
 
 
 

188. Sometimes the bacterial cell is enclosed in:

 
 
 
 

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

 
 
 
 

190. Bacteriophage consists of:

 
 
 
 

191. Rice, pea, potato are :

 
 
 
 

192. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

195. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

197. Which is not found in bacteria?

 
 
 
 

198. Mycoplasma are sensitive to:

 
 
 
 

199. The tree fern is:

 
 
 
 

200. The antherozoids of Funaria are :

 
 
 
 

201. Fern plants are:

 
 
 
 

202. The sexual reproductive organs in Rhizopus are:

 
 
 
 

203. Which of the following shows heterotrichous habit?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

206. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

208. Club moss and Peat moss belong to:

 
 
 
 

209. In moss, peristomial teeth are:

 
 
 
 

210. Liverworts are included in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

213. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. Mucilaginous canals in Cycas are found in :

 
 
 
 

217. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

219. Select the wrong statement:

 
 
 
 

220. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

222. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

224. The zygospore in Rhizopus on germination forms:

 
 
 
 

225. The sporangia of Selaginella are attached:

 
 
 
 

226. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

228. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

230. Diploxylic vascular bundles are found in:

 
 
 
 

231. Oswald Tippo’s classification was based on :

 
 
 
 

232. Where does meiosis occur in yeast?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. Chief constituents of bordeaux mixture are :

 
 
 
 

236. Late blight of potato is caused by:

 
 
 
 

237. In Pteris, the archegonia are present:

 
 
 
 

238. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

242. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

246. Synzoospore is produced in:

 
 
 
 

247. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

249. Club moss is the common name of :

 
 
 
 

250. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

252. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

255. 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:

 
 
 
 

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

 
 
 
 

257. Spermatophyta are characterized by producing:

 
 
 
 

258. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

261. Antibiotics cure the disease by:

 
 
 
 

262. LSD is:

 
 
 
 

263. Among the algae kelps are :

 
 
 
 

264. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

266. 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?

 
 
 
 

267. Etiology includes the study of :

 
 
 
 

268. Who named prion?

 
 
 
 

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

 
 
 
 

270.

 

271. Genetic material of TMV is:

 
 
 
 

272. Select the correct statement: (NEET 2016)

 
 
 
 

273. Which of the following are included in Tracheophyta?

 
 
 
 

274. The source of litmus is :

 
 
 
 

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

 
 
 
 

276. An Hfr bacterium is one that contains:

 
 
 
 

277. Psilotum is:

 
 
 
 

278. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

280. Facultative parasite is:

 
 
 
 

281. Enzymes are absent in:

 
 
 
 

282. The most primitive vascular plants is:

 
 
 
 

283. Lichens show :

 
 
 
 

284. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

288. Which of the following does not contain chlorophyll?

 
 
 
 

289. What is a vector?

 
 
 
 

290. The sporangium of fern contains nearly:

 
 
 
 

291. Which condition is found in Cycas?

 
 
 
 

292. Multicellular and jacketed sex organs are found in :

 
 
 
 

293. Gymnosperms could also be called as:

 
 
 
 

294. Germination of the seed of Pinus is :

 
 
 
 

295. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

297. Which class of Protozoa includes all parasitic forms?

 
 
 
 

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

 
 
 
 

299. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

303. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

305. The phloem of vascular system of Cycas is :

 
 
 
 

306. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

310. The leafy fern plant represents the:

 
 
 
 

311. In moss, stomata are found:

 
 
 
 

312. Pasteurization of milk involves heating for:

 
 
 
 

313. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

315. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

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

 
 
 
 

317. Which of the following is a parasitic algae?

 
 
 
 

318. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

320. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

325. Longest known virus is:

 
 
 
 

326. Absorptive nutrition is:

 
 
 
 

327. Viruses have:

 
 
 
 

328. Most resistant spore in bacteria is:

 
 
 
 

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

 
 
 
 

330. Which of the following is a monocot?

 
 
 
 

331. Streptomycin is obtained from:

 
 
 
 

332. Most of the algae are :

 
 
 
 

333. Reproduction in Rhizopus is:

 
 
 
 

334. Who discovered heterothallism in fungi?

 
 
 
 

335. Fern prothallus is:

 
 
 
 

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

 
 
 
 

337. The flagella of Chlamydomonas are:

 
 
 
 

338. Iodine is obtained from:

 
 
 
 

339. The leaves of Funaria are :

 
 
 
 

340. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

342. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

344. The fungi are mostly:

 
 
 
 

345. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

351. The chromosomal number in:

 
 
 
 

352. Fruiting body of lichens is :

 
 
 
 

353. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

354. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

356. The zoospores of Ulothrix are :

 
 
 
 

357. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

364. The orders generally have the uniform endings:

 
 
 
 

365. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

369. Vascular tissue is found in :

 
 
 
 

370. Botulism is a:

 
 
 
 

371. Pollination drop is:

 
 
 
 

372. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

374. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. 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?

 
 
 
 

379. Indusium in Dryopteris is:

 
 
 
 

380. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

381. Which bacteria convert nitrate into nitrogen?

 
 
 
 

382. Total parasites belong to:

 
 
 
 

383. Linnaeus is credited with introducing:

 
 
 
 

384. The plants of Funaria grow :

 
 
 
 

385. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

387. Which is not true for Escherichia coli?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

390. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

394. TMV was isolated in crystalline form by:

 
 
 
 

395. Which fixes atmospheric nitrogen?

 
 
 
 

396. Which of the following statements is not correct?

 
 
 
 

397. Smut of maize is caused by :

 
 
 
 

398. Which one of the following statement is wrong?

 
 
 
 

399. Yeast belongs to class:

 
 
 
 

400. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

402. Cocci types of bacteria are:

 
 
 
 

403. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

405. Which causes red tide?

 
 
 
 

406. Chemosynthetic bacteria are:

 
 
 
 

407. Acetobacter is useful in:

 
 
 
 

408. The sori in Dryopteris are found on:

 
 
 
 

409. Citrus canker is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

412. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

414. Water-borne bacterial diseases are:

 
 
 
 

415. True sexuality is not found in:

 
 
 
 

416. Cell walls of Gram-positive bacteria contain:

 
 
 
 

417. In dinoflagellates, the two flagella are:

 
 
 
 

418. In moss, sporogenous tissue arises from:

 
 
 
 

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

 
 
 
 

420. Plasmids are:

 
 
 
 

421. Which of the following have algal zone?

 
 
 
 

422. What is streptomycin?

 
 
 
 

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

 
 
 
 

424. Which is the nuclear material in bacteria?

 
 
 
 

425. Iodine is obtained from :

 
 
 
 

426. An alga which is rich in proteins:

 
 
 
 

427. The spur of Pinus roxburghii has :

 
 
 
 

428. Endemic plants are characterised by their:

 
 
 
 

429. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

431. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

433. Bacteria are placed under:

 
 
 
 

434. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

436. Polystelic condition is found in:

 
 
 
 

437. Who discovered cyanophages?

 
 
 
 

438. NBG of Lucknow is now named as:

 
 
 
 

439. Cryptogams include :

 
 
 
 

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

 
 
 
 

441. Azolla growing in paddy fields helps in:

 
 
 
 

442. Mycoplasma was discovered by:

 
 
 
 

443. Most primitive group of vascular plants are:

 
 
 
 

444. Pinus microsporophyll bears:

 
 
 
 

445. The megasporangium of Selaginella is:

 
 
 
 

446. Interferon is a:

 
 
 
 

447. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

450. Cycas is:

 
 
 
 

451. Aflatoxin is produced as a product in :

 
 
 
 

452. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

454. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

456. Typhoid in man is caused by:

 
 
 
 

457. Azolla and Salvinia both are:

 
 
 
 

458. Male gametes in Dryopteris are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

462. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

465. The coralloid roots are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

469. Gametophyte is the main plant body in :

 
 
 
 

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

 
 
 
 

471. The teeth of peristome of Funaria are :

 
 
 
 

472. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

475. Ovary is absent in:

 
 
 
 

476. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

478. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

481. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

483. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

485. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

487. Red rot of sugarcane is caused by:

 
 
 
 

488. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

493. The Rhizopus gametes are formed in:

 
 
 
 

494. In Gymnosperms endosperm is a:

 
 
 
 

495. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

499. Choose the correct statement about Spirogyra:

 
 
 
 

500. Fertility of the soil is increased by:

 
 
 
 

501. Vascular cryptogam is the term used for :

 
 
 
 

502. Economic importance of bacteria lies in their being:

 
 
 
 

503. Photosynthetic protists belong to:

 
 
 
 

504. Heterospory and ligulate leaves are a feature of:

 
 
 
 

505. Who among the following discovered virus?

 
 
 
 

506. Acellular slime mold is/are:

 
 
 
 

507. Most common type of conjugation in Spirogyra is :

 
 
 
 

508. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

510. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

512. A gill of Agaricus:

 
 
 
 

513. All algae have:

 
 
 
 

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

 
 
 
 

515. Rhizophore of Selaginella is:

 
 
 
 

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

 
 
 
 

517. Spermatophyta are characterized by producing:

 
 
 
 

518. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

520. Winged pollen grains are found in :

 
 
 
 

521. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

524. First animal pathogenic virus was discovered by:

 
 
 
 

525. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

528. Ulothrix produces :

 
 
 
 

529. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

530. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

532. In moss, sporophyte is formed on:

 
 
 
 

533. In moss, conducting tissue is made up of

 
 
 
 

534. Aflatoxin is produced by:

 
 
 
 

535. 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:

 
 
 
 

536. Bivalved siliceous shell or frustule occur in:

 
 
 
 

537. In a bacteriophage, DNA is present in:

 
 
 
 

538. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

540. The fern plant is:

 
 
 
 

541. Nitrifying bacteria play an important role by converting:

 
 
 
 

542. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

544. Which one of the following is a monocot?

 
 
 
 

545. In Cycas microsporangia are borne on:

 
 
 
 

546. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

551. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

553. The largest alga is:

 
 
 
 

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

 
 
 
 

555. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

558. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

559. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

560. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

565. The fungi are usually:

 
 
 
 

566. Pasteur is famous for his:

 
 
 
 

567. The megaspore of Selaginella on germination produces:

 
 
 
 

568. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

573. White rust of crucifers is caused by:

 
 
 
 

574. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

576. How a fern differs from a moss?

 
 
 
 

577. Who discovered streptomycin?

 
 
 
 

578. The root nodules of leguminous plants contain:

 
 
 
 

579. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

581. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

584. Heterospory is the production of:

 
 
 
 

585. The leaves of Funaria are :

 
 
 
 

586. Pollination in Cycas takes place by :

 
 
 
 

587. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

589. Which of the following statement is correct?

 
 
 
 

590. Heterocysts are found in :

 
 
 
 

591. Pasteurized milk is:

 
 
 
 

592. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

596. The chloroplast of Chlamydomonas are:

 
 
 
 

597. Which among the following is a shrub?

 
 
 
 

598. Nitrogen-fixing bacteria may be located:

 
 
 
 

599. Fruits are not found in Cycas because:

 
 
 
 

600. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

606. Cyanophage is a virus that attacks:

 
 
 
 

607. Woody climbers are known as :

 
 
 
 

608. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

610. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

613. Milk is converted to curd by:

 
 
 
 

614. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

615. Cycas is :

 
 
 
 

616. Coenogamete is found in:

 
 
 
 

617. One of the distinctive feature of Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

620. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

623. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. The order generally ends with:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

632. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

633. Heterosporous pteridophytes always form:

 
 
 
 

634. Infective part of virus was discovered by:

 
 
 
 

635. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

638. In Funaria :

 
 
 
 

639. Protozoans are considered animals because these are:

 
 
 
 

640. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

642. The spermatozoids of Cycas are :

 
 
 
 

643. Male gametophyte of Selaginella is found:

 
 
 
 

644. In Cycas which structure is equivalent to stamen?

 
 
 
 

645. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

647. Protistan algae obtain their food as:

 
 
 
 

648. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

651. What are plasmids?

 
 
 
 

652. Ectocarpus produces:

 
 
 
 

653. All protozoans possess:

 
 
 
 

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

 
 
 
 

655. The central part of Funaria axis is :

 
 
 
 

656. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

658. The group algae possesses representatives belonging to kingdom:

 
 
 
 

659. How is moss different from fern?

 
 
 
 

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

 
 
 
 

661. The fungi used as food are:

 
 
 
 

662. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

663. Fruits are not found in :

 
 
 
 

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

 
 
 
 

665. 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:

 
 
 
 

666. Some diseases caused by bacteria are:

 
 
 
 

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

 
 
 
 

668. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

670. Desired type of Cycas can be grown by:

 
 
 
 

671. Siphonogamy is found in:

 
 
 
 

672. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

674. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

681. The middle sterile part of capsule is called:

 
 
 
 

682. Viruses are commonly transmitted in plants through:

 
 
 
 

683. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

685. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

688. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

689. Photosynthetic bacteria have:

 
 
 
 

690.

691. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

693. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

695. Downy mildew disease is caused by :

 
 
 
 

696. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

698. Roots are absent in :

 
 
 
 

699. Seeds are characteristically found in:

 
 
 
 

700. Sporophyte of Funaria is :

 
 
 
 

701. Which is a tautonym?

 
 
 
 

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

 
 
 
 

703. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

705. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

707. Funaria is :

 
 
 
 

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

 
 
 
 

709. Number of capsomeres forming capsid of TMV is:

 
 
 
 

710. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

712. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

716. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

718. The Rhizopus is:

 
 
 
 

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

 
 
 
 

720. Green plants are classified as:

 
 
 
 

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

 
 
 
 

722. Botulinum toxin effects:

 
 
 
 

723. Seeds are characteristically found in :

 
 
 
 

724. Black rust of wheat is caused by:

 
 
 
 

725. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

728. Late blight of potato is caused by :

 
 
 
 

729. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

735. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

737. The disease apple scab is caused by:

 
 
 
 

738. Cap cells are found in the filament of:

 
 
 
 

739. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

741. Embryophyta includes:

 
 
 
 

742. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

744. The lambda phase is a:

 
 
 
 

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

 
 
 
 

746. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

750. Anoxygenic photosynthesis occurs in:

 
 
 
 

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

 
 
 
 

752. Helotism word is used for the symbiosis between :

 
 
 
 

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

 
 
 
 

754. 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?

 
 
 
 

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

 
 
 
 

756. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

758. The microsporophylls on the cone of Cycas are :

 
 
 
 

759. Which have the largest antherozoid?

 
 
 
 

760. In Cycas the fertilization is:

 
 
 
 

761. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

764. Enteric bacteria are those bacteria that live:

 
 
 
 

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

 
 
 
 

766. Majority of lichens are :

 
 
 
 

767. The alga, Spirogyra are found in :

 
 
 
 

768. In moss, calyptra is formed from:

 
 
 
 

769. Early blight of potato is caused by:

 
 
 
 

770. Rhizoids of Riccia are :

 
 
 
 

771. Which organisms are the oldest life forms?

 
 
 
 

772. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

773. Rhizopus and yeast are usually:

 
 
 
 

774. Which of the following is true for Selaginella?

 
 
 
 

775. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

777. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

780. Most appropriate word for protozoans is:

 
 
 
 

781. Ovules are not found enclosed in ovary in :

 
 
 
 

782. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

784. The ferns are usually found:

 
 
 
 

785. Meiosis in Ulothrix takes place:

 
 
 
 

786. Black rust of wheat is caused by:

 
 
 
 

787. Viroids have:

 
 
 
 

788. Vascular cryptogams is the term used for:

 
 
 
 

789. The mycelium of Rhizopus is:

 
 
 
 

790. The gametophyte of fern bears:

 
 
 
 

791. Funaria is :

 
 
 
 

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

 
 
 
 

793. Cycas is different from mango in :

 
 
 
 

794. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

796. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

799. Pseudomycelium is found in:

 
 
 
 

800. Photoautotrophic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

804.

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

 
 
 
 

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

 
 
 
 

807. Which of the following is true for viruses?

 
 
 
 

808. Pneumonia is caused by:

 
 
 
 

809. Funaria can be differentiated from Cycas :

 
 
 
 

810. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

812. Yeast is a source of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

819. Funaria is a Bryophyta because :

 
 
 
 

820.

821. Each chloroplast in Spirogyra bears :

 
 
 
 

822. Special feature of pollen grains of Pinus is :

 
 
 
 

823. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

825. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

828. Mycoplasma are:

 
 
 
 

829. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

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

 
 
 
 

831. Metulae are found in:

 
 
 
 

832. 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:

 
 
 
 

833. Most primitive embryophytes are placed in:

 
 
 
 

834. 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:

 
 
 
 

835. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

837. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

840. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

842. Lichens are ecologically important because :

 
 
 
 

843. Reserve food in Euglena is:

 
 
 
 

844. Which is absent from the xylem of Cycas?

 
 
 
 

845. Soil fertility is lost by the activities of:

 
 
 
 

846. In Herpes virus DNA is:

 
 
 
 

847. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

849. The most important property of yeast is:

 
 
 
 

850. The two conjugating gametangia of Rhizopus are:

 
 
 
 

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

 
 
 
 

852. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

854. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

856. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

858. Wine turns sour because of:

 
 
 
 

859. In Funaria, calyptra is derived from :

 
 
 
 

860. Bryophyta have been placed in cryptogams because:

 
 
 
 

861. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

864. To which class Riccia belongs :