Quiz_Random

1. The largest alga is:

 
 
 
 

2. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

4. 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:

 
 
 
 

5. Iodine is obtained from :

 
 
 
 

6. Which of the following is a monocot?

 
 
 
 

7. Usually, bacteria reproduce by:

 
 
 
 

8. Most resistant spore in bacteria is:

 
 
 
 

9. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

12. Nannandria are:

 
 
 
 

13. The microsporophylls on the cone of Cycas are :

 
 
 
 

14. Cycas plant in appearance resembles :

 
 
 
 

15. The DNA of E coli is:

 
 
 
 

16. The antherozoids of Funaria are :

 
 
 
 

17. Virion refers to:

 
 
 
 

18. Male gametes in Dryopteris are:

 
 
 
 

19. Meiosis in Ulothrix takes place:

 
 
 
 

20. The word “sea weeds” is used for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

23. Leprosy is caused by:

 
 
 
 

24. Ovules are not found enclosed in ovary in :

 
 
 
 

25. Select the wrong statement:

 
 
 
 

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

 
 
 
 

27. The seedless plants which possess vascular tissues are:

 
 
 
 

28. Lichens show :

 
 
 
 

29. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

32. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

37. Azolla growing in paddy fields helps in:

 
 
 
 

38.

39. Amoeba is a member of the phylum:

 
 
 
 

40. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

41. A gill of Agaricus:

 
 
 
 

42. Which have the largest antherozoid?

 
 
 
 

43. 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?

 
 
 
 

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

 
 
 
 

45. The genetic material of poxvirus is:

 
 
 
 

46. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

48. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. Lichens are the indicator of pollution :

 
 
 
 

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

 
 
 
 

55. Enzymes are absent in:

 
 
 
 

56. Meristele of fern is:

 
 
 
 

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

 
 
 
 

58. The fungi are usually:

 
 
 
 

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

 
 
 
 

60. Photosynthetic protists belong to:

 
 
 
 

61. The mycelium of Rhizopus is:

 
 
 
 

62. Which statement is wrong in regard to bacteria?

 
 
 
 

63. Who named prion?

 
 
 
 

64. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

66. Citrus canker is caused by :

 
 
 
 

67. Polystelic condition is found in:

 
 
 
 

68. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

70. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

73. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

79. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

81. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

83. Pythium debaryanum is the causative agent of:

 
 
 
 

84. Bivalved siliceous shell or frustule occur in:

 
 
 
 

85. Absorptive nutrition is:

 
 
 
 

86. Woody climbers are known as :

 
 
 
 

87. Downy mildew disease is caused by :

 
 
 
 

88. Club moss is the common name of :

 
 
 
 

89. Photosynthetic bacteria have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

95. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

97. The truncated cone of HIV consists of:

 
 
 
 

98. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

100. In a bacteriophage, DNA is present in:

 
 
 
 

101. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

103. Which one of the following is a monocot?

 
 
 
 

104. Most of the lichens are composed of :

 
 
 
 

105. Funaria are commonly found :

 
 
 
 

106. Cryptogams include :

 
 
 
 

107. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

110. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

113. Placenta in fern is:

 
 
 
 

114. Botulinum toxin effects:

 
 
 
 

115. Bacteria growing on synthetic medium are called:

 
 
 
 

116. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

118. The sexual reproductive organs in Rhizopus are:

 
 
 
 

119. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

121. Which of the following is a heterosporous pteridophyte?

 
 
 
 

122. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

125. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

127. Which fixes atmospheric nitrogen?

 
 
 
 

128. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

129. In dinoflagellates, the two flagella are:

 
 
 
 

130. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

132. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

134. Funaria is :

 
 
 
 

135. 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:

 
 
 
 

136. Male gametophyte of Selaginella is found:

 
 
 
 

137. Generic name of mango is:

 
 
 
 

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

 
 
 
 

139. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

141. Facultative parasite is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

144. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

146. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

150. Mycoplasma is different from bacteria due to:

 
 
 
 

151. Broad spectrum antibiotic is, which:

 
 
 
 

152. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

156. The fungi used as food are:

 
 
 
 

157. Viruses have:

 
 
 
 

158. Ovules are not found enclosed in ovary of:

 
 
 
 

159. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

161. To which class Riccia belongs :

 
 
 
 

162. What is the role of nitrifying bacteria?

 
 
 
 

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

 
 
 
 

164. The ferns are usually found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

168. In moss, reduction division occurs in :

 
 
 
 

169. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

171. Simple polyembryony is found in :

 
 
 
 

172. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

174. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

176. Protistan algae obtain their food as:

 
 
 
 

177. Multicellular and jacketed sex organs are found in :

 
 
 
 

178. Lichens reproduce by :

 
 
 
 

179. Red rot of sugarcane is caused by :

 
 
 
 

180. Siphonogamy is found in:

 
 
 
 

181. Late blight of potato is caused by:

 
 
 
 

182. 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:

 
 
 
 

183. The fungi are mostly:

 
 
 
 

184. Select the wrong statement:

 
 
 
 

185. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

188. Water bloom is generally caused by :

 
 
 
 

189. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

193. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

195. Funaria can be differentiated from Cycas :

 
 
 
 

196. Iodine is obtained from:

 
 
 
 

197. To which country Antony van Leeuwenhoek belong?

 
 
 
 

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

 
 
 
 

199. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

203. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

208. The prothallus of fern is:

 
 
 
 

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

 
 
 
 

210. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

211. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

216. Which lichen is called Reindeer moss?

 
 
 
 

217. Botulism is a:

 
 
 
 

218. The prothallus of fern represents the plant:

 
 
 
 

219. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

221. Chemosynthetic bacteria are:

 
 
 
 

222. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

224. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

228. Lichens are ecologically important because :

 
 
 
 

229. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

232. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

233. Standard size of a herbarium sheet is:

 
 
 
 

234. Most common type of conjugation in Spirogyra is :

 
 
 
 

235. What are Cyanobacteria?

 
 
 
 

236. Antibiotics cure the disease by:

 
 
 
 

237. Which is a gametophytic tissue?

 
 
 
 

238. Most primitive embryophytes are placed in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

241. Aflatoxin is produced as a product in :

 
 
 
 

242. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

245. The middle sterile part of capsule is called:

 
 
 
 

246. Pollination in Pinus is :

 
 
 
 

247. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

249. Vascular tissue is found in :

 
 
 
 

250. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

253. Ovary is absent in:

 
 
 
 

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

 
 
 
 

255. Protozoans are considered animals because these are:

 
 
 
 

256. Lichen show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

259. How a fern differs from a moss?

 
 
 
 

260. Bacteria are found everywhere, except:

 
 
 
 

261. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

266. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

269. Reserve food in Euglena is:

 
 
 
 

270. How is moss different from fern?

 
 
 
 

271. Spirogyra represents the :

 
 
 
 

272. The sporangiophores in Rhizopus are:

 
 
 
 

273. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

277. Club moss and Peat moss belong to:

 
 
 
 

278. Banana bunchy top is caused by :

 
 
 
 

279. Nitrogen-fixing bacteria may be located:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

282. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

285. Citrus canker is caused by:

 
 
 
 

286. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

289. Bacteria are placed under:

 
 
 
 

290. The young leaves of Cycas have :

 
 
 
 

291. Viruses are considered to be:

 
 
 
 

292. Which is not found in bacteria?

 
 
 
 

293. Which is the nuclear material in bacteria?

 
 
 
 

294. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

297. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

299. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

301. Which among the following is a shrub?

 
 
 
 

302. Fern phloem lacks:

 
 
 
 

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

 
 
 
 

304. The Rhizopus gametes are formed in:

 
 
 
 

305. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

306. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

309. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

311. Cycas is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

314. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

316. Fern plants are:

 
 
 
 

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

 
 
 
 

318. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

322. What is a vector?

 
 
 
 

323. Pteridophyta are also called:

 
 
 
 

324. Kuru, a human disease is caused by:

 
 
 
 

325. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

327. Protists which are diploid reproduce sexually by:

 
 
 
 

328. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

330. 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?

 
 
 
 

331. Proembryo in Pinus is :

 
 
 
 

332. Streptomycin is obtained from:

 
 
 
 

333. Which is a redwood tree?

 
 
 
 

334. Spermatophyta are characterized by producing:

 
 
 
 

335. Typhoid in man is caused by:

 
 
 
 

336. In Pteris, the archegonia are present:

 
 
 
 

337. Fern prothallus produces:

 
 
 
 

338. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

340. Most of the algae are :

 
 
 
 

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

 
 
 
 

342. Antibiotic has been extracted from :

 
 
 
 

343. The archegonia in Selaginella develop on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

348. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

350. Rhizopus belongs to:

 
 
 
 

351. Ethylene oxide is widely used to:

 
 
 
 

352. Quarantine regulations are concerned with:

 
 
 
 

353. The gametophyte of fern is as:

 
 
 
 

354. One of the distinctive feature of Spirogyra is :

 
 
 
 

355. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

357. Facultative saprophyte is:

 
 
 
 

358. Anoxygenic photosynthesis occurs in:

 
 
 
 

359. Heterosporous pteridophytes always form:

 
 
 
 

360. Virus and bacteriophage are made-up of:

 
 
 
 

361. Which class of Protozoa includes all parasitic forms?

 
 
 
 

362. Fruits are not found in Cycas because:

 
 
 
 

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

 
 
 
 

364. Heterospory is the production of:

 
 
 
 

365. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

366.

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

 
 
 
 

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

 
 
 
 

369. Saccharomyces ludwigii ascus produces:

 
 
 
 

370. 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:

 
 
 
 

371. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

373. Which of the following is true for Selaginella?

 
 
 
 

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

 
 
 
 

375. First animal pathogenic virus was discovered by:

 
 
 
 

376. The sporangia of Selaginella are attached:

 
 
 
 

377. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

379. Chemosynthetic bacteria are:

 
 
 
 

380. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

383. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

385. The chief characteristic of class Ascomycetes is:

 
 
 
 

386. Ergot of rye is caused by:

 
 
 
 

387. Funaria is a Bryophyta because :

 
 
 
 

388. Winged pollen grains are found in :

 
 
 
 

389. Bacteria were first discovered by:

 
 
 
 

390. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

392. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

396. Liverworts are included in :

 
 
 
 

397. Red rot of sugarcane is caused by:

 
 
 
 

398. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

403. In moss, sporogenous tissue arises from:

 
 
 
 

404. Which causes red tide?

 
 
 
 

405. Chief constituents of bordeaux mixture are :

 
 
 
 

406. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

409. The tallest moss in the world is :

 
 
 
 

410. LSD is:

 
 
 
 

411. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

413. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

415. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

421. The smallest bacterium is:

 
 
 
 

422. Lichens are pioneers of vegetation in a :

 
 
 
 

423. Which of the following lichens is harmful?

 
 
 
 

424. Which bacteria convert nitrate into nitrogen?

 
 
 
 

425. Viroids have:

 
 
 
 

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

 
 
 
 

427. The Rhizopus is:

 
 
 
 

428. Who discovered cyanophages?

 
 
 
 

429. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

431. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

433. Which is absent from the xylem of Cycas?

 
 
 
 

434. The first to isolate a plant virus was:

 
 
 
 

435. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

439. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

441. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

445. In moss, sporophyte is formed on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

448. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

450. Green plants are classified as:

 
 
 
 

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

 
 
 
 

452. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

457. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

460. Nitrifying bacteria play an important role by converting:

 
 
 
 

461. Cycas is similar to a mustard plant :

 
 
 
 

462. Which of the following are included in Tracheophyta?

 
 
 
 

463. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

465. Bentham and Hooker placed gymnosperms:

 
 
 
 

466. Zoogametes are not found in:

 
 
 
 

467. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

469. Halophiles are the bacteria that require for growth:

 
 
 
 

470. Sexual reproduction in Rhizopus is by:

 
 
 
 

471. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

474. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

476. The spermatozoids of Cycas are :

 
 
 
 

477. The source of litmus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

481. Which of the following have a prokaryotic cell?

 
 
 
 

482. The zygospore in Rhizopus on germination forms:

 
 
 
 

483. What is absent in Deuteromycetes?

 
 
 
 

484. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

486. Who discovered heterothallism in fungi?

 
 
 
 

487. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

490. Fruits are not found in :

 
 
 
 

491. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

493. Mycoplasma are:

 
 
 
 

494. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

497. Ginkgo biloba is a:

 
 
 
 

498. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

501. Germination of the seed of Pinus is :

 
 
 
 

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

 
 
 
 

503. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

505. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

507. 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?

 
 
 
 

508. In a diplontic life cycle:

 
 
 
 

509. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

511. In moss, stomata are found:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

515. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

517.

 

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

 
 
 
 

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

 
 
 
 

520. Black rust of wheat is caused by:

 
 
 
 

521. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

523. Mycoplasmas are not viruses in nature because:

 
 
 
 

524. Interferon is a:

 
 
 
 

525. Most primitive group of vascular plants are:

 
 
 
 

526. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

528. Bacteriophages have been used as:

 
 
 
 

529. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. Which part of Riccia bears nurse cells?

 
 
 
 

533. Saccharomyces is well known for:

 
 
 
 

534. Linnaeus is credited with introducing:

 
 
 
 

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

 
 
 
 

536. Seeds are characteristically found in :

 
 
 
 

537. Lichens reproduce by :

 
 
 
 

538. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

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

 
 
 
 

540. Clostridium can:

 
 
 
 

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

 
 
 
 

542. Majority of lichens are :

 
 
 
 

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

 
 
 
 

544. Sometimes the bacterial cell is enclosed in:

 
 
 
 

545. Which condition is found in Cycas?

 
 
 
 

546. Maximum diversity of life forms occurs in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

549. Which is a tautonym?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

554. Ovary is absent in :

 
 
 
 

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

 
 
 
 

556. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

558. Black rust of wheat is caused by:

 
 
 
 

559. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

562. The most primitive vascular plants is:

 
 
 
 

563. Small epidermal swellings due to infection are called :

 
 
 
 

564. Select the correct statement: (NEET 2016)

 
 
 
 

565. Pinus microsporophyll bears:

 
 
 
 

566. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

568. The megaspore of Selaginella on germination produces:

 
 
 
 

569. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

573. Photoautotrophic bacteria have:

 
 
 
 

574. Heterocysts are found in :

 
 
 
 

575. Streptomyces falls under:

 
 
 
 

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

 
 
 
 

577. Seeds are characteristically found in:

 
 
 
 

578. Cleavage polyembryony is found in :

 
 
 
 

579. What are plasmids?

 
 
 
 

580. Ulothrix produces :

 
 
 
 

581. Genetic material of TMV is:

 
 
 
 

582. Who among the following discovered virus?

 
 
 
 

583. The leaf of Cycas shows:

 
 
 
 

584. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

585. Which of the following statement is correct?

 
 
 
 

586. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

588. The plants of Funaria grow :

 
 
 
 

589. The disease symptom necrosis refers to :

 
 
 
 

590. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

592. In Herpes virus DNA is:

 
 
 
 

593. The lichens growing on rocks are called :

 
 
 
 

594. In Cycas which structure is equivalent to stamen?

 
 
 
 

595. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

597. Lichens form the first community in

 
 
 
 

598. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

600. Milk is converted to curd by:

 
 
 
 

601. Smut of maize is caused by :

 
 
 
 

602. Fertility of the soil is increased by:

 
 
 
 

603. The leafy fern plant represents the:

 
 
 
 

604. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

606. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

609. Sporophyte of fern is:

 
 
 
 

610. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

614. The tree fern is:

 
 
 
 

615. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

618. Bacteria which are spherical are called:

 
 
 
 

619. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

622. Total parasites belong to:

 
 
 
 

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

 
 
 
 

624. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

626. Synzoospore is produced in:

 
 
 
 

627. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

632. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

637. Why is Cycas called a living fossil?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

640. Sporophyte of Funaria is :

 
 
 
 

641. Water-net is the name of:

 
 
 
 

642. Triple antigen injection or vaccine are for:

 
 
 
 

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

 
 
 
 

644. Desired type of Cycas can be grown by:

 
 
 
 

645. Cyanophage is a virus that attacks:

 
 
 
 

646. Which is not true for Escherichia coli?

 
 
 
 

647. What is mycorrhiza?

 
 
 
 

648. Enteric bacteria are those bacteria that live:

 
 
 
 

649. True sexuality is not found in:

 
 
 
 

650. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

652. Pseudomycelium is found in:

 
 
 
 

653. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

655. Spirogyra differs from moss protonema in having :

 
 
 
 

656. Longest known virus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

659. The central part of Funaria axis is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

662. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

666. NBG of Lucknow is now named as:

 
 
 
 

667. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

670. Which of the following shows heterotrichous habit?

 
 
 
 

671. Mycoplasma are sensitive to:

 
 
 
 

672. . Tapetum develops in:

 
 
 
 

673. The development of sporangium in Selaginella is:

 
 
 
 

674. Which of the following does not contain chlorophyll?

 
 
 
 

675. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

677. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

679. Each chloroplast in Spirogyra bears :

 
 
 
 

680. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

682. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

685. The nucleus of bacteria is:

 
 
 
 

686. Oswald Tippo’s classification was based on :

 
 
 
 

687. Fruits are not found in:

 
 
 
 

688. Green plants are classified as :

 
 
 
 

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

 
 
 
 

690. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

693. All protozoans possess:

 
 
 
 

694. Winged seeds are found in :

 
 
 
 

695. The leaves of Funaria are :

 
 
 
 

696. The gametophyte produced by apospory is :

 
 
 
 

697. The development of Selaginella embryo is:

 
 
 
 

698. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

701. Diphtheria is caused by:

 
 
 
 

702. TMV was isolated in crystalline form by:

 
 
 
 

703. Which is a fungicide?

 
 
 
 

704. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

705. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

707. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

711. The order generally ends with:

 
 
 
 

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

 
 
 
 

713. In moss, calyptra is formed from:

 
 
 
 

714. Which of the following are absent in Mycoplasma?

 
 
 
 

715. Endemic plants are characterised by their:

 
 
 
 

716. Ovules are not found enclosed in ovary in :

 
 
 
 

717. All archaebacteria lack:

 
 
 
 

718. Germ theory of disease was proposed by:

 
 
 
 

719. Common phycobiont in a lichen is :

 
 
 
 

720. The roots of Cycas are :

 
 
 
 

721. Discovery of penicillin was based on:

 
 
 
 

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

 
 
 
 

723. Where does meiosis occur in yeast?

 
 
 
 

724. The two conjugating gametangia of Rhizopus are:

 
 
 
 

725. Leaf spot of groundnut is caused by :

 
 
 
 

726. Yeast belongs to class:

 
 
 
 

727. In angiosperms double fertilization represents:

 
 
 
 

728. Lichens are indicators of :

 
 
 
 

729. The alga, Spirogyra are found in :

 
 
 
 

730. Heterospory and ligulate leaves are a feature of:

 
 
 
 

731. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

732. Which of the following are included in Tracheophyta?

 
 
 
 

733. All algae have:

 
 
 
 

734. The sporangium of fern contains nearly:

 
 
 
 

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

 
 
 
 

736. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

739. Helotism word is used for the symbiosis between :

 
 
 
 

740. Ergot is obtained from :

 
 
 
 

741. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

742. White rust of crucifers is caused by:

 
 
 
 

743. The most important property of yeast is:

 
 
 
 

744. Embryophyta includes :

 
 
 
 

745. Roots are absent in :

 
 
 
 

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

 
 
 
 

747. Disease resistant plant varieties can be produced by :

 
 
 
 

748. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

753. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

755. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

758. The chloroplast of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

760. Indusium in Dryopteris is:

 
 
 
 

761. Psilotum is:

 
 
 
 

762. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

764. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

766. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

769. The lambda phase is a:

 
 
 
 

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

 
 
 
 

771. Cellular slime mold is:

 
 
 
 

772. Which one of the following statement is wrong?

 
 
 
 

773. The photosynthetic protists are:

 
 
 
 

774. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

776. The sporophyte of Riccia is represented by :

 
 
 
 

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

 
 
 
 

778. Number of capsomeres forming capsid of TMV is:

 
 
 
 

779. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

782. Azolla and Salvinia both are:

 
 
 
 

783. Which is an exception to cell theory?

 
 
 
 

784. Parmelia belongs to :

 
 
 
 

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

 
 
 
 

786. Plasmids are:

 
 
 
 

787. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

791. Coenogamete is found in:

 
 
 
 

792. An Hfr bacterium is one that contains:

 
 
 
 

793. Tautonyms are illegitimate in:

 
 
 
 

794. Acetobacter is useful in:

 
 
 
 

795. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

801. Oswald Tippo’s classification is:

 
 
 
 

802. Fern prothallus is:

 
 
 
 

803. Which of the following have algal zone?

 
 
 
 

804. Sleeping sickness disease in man is caused by:

 
 
 
 

805. Yeast is a source of:

 
 
 
 

806. In Funaria :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

810. Acellular slime mold is/are:

 
 
 
 

811. Gametophyte is the main plant body in :

 
 
 
 

812. Isomorphic type alternation of generation is found in:

 
 
 
 

813. Among the algae kelps are :

 
 
 
 

814. Economic importance of bacteria lies in their being:

 
 
 
 

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

 
 
 
 

816. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

818. Spores of which plants have chloroplast:

 
 
 
 

819. Some diseases caused by bacteria are:

 
 
 
 

820. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

824. Embryophyta includes:

 
 
 
 

825. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

827. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

829. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

831. Agar-agar is obtained from:

 
 
 
 

832. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

835. What is streptomycin?

 
 
 
 

836. Mostly type of zygospore in Ulothrix is:

 
 
 
 

837. In Cycas:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

841. Which is the correct statement about Selaginella?

 
 
 
 

842. Early blight of potato is caused by:

 
 
 
 

843.

844. Spermatophyta are characterized by producing:

 
 
 
 

845. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

847. In tracheophyta:

 
 
 
 

848. What is special feature of fern archegonia?

 
 
 
 

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

 
 
 
 

850. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

854. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

855. Cell walls of Gram-positive bacteria contain:

 
 
 
 

856. Rhizophore of Selaginella is:

 
 
 
 

857. Soil fertility is lost by the activities of:

 
 
 
 

858. The fern plant is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

862. In Pteris, the roots are:

 
 
 
 

863. The coralloid roots are :

 
 
 
 

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