Quiz_Random

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

 
 
 
 

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

 
 
 
 

3. The vascular bundles of Cycas stem are :

 
 
 
 

4. Standard size of a herbarium sheet is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Which organisms are the oldest life forms?

 
 
 
 

8. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

10. Halophiles are the bacteria that require for growth:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

14. Reserve food in Euglena is:

 
 
 
 

15. Ginkgo biloba is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

22. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

23. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

27. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

28. Bacteria were first discovered by:

 
 
 
 

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

 
 
 
 

30. Special feature of pollen grains of Pinus is :

 
 
 
 

31. Aflatoxin is produced as a product in :

 
 
 
 

32. Chemosynthetic bacteria are:

 
 
 
 

33. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

36. Heterospory is the production of:

 
 
 
 

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

 
 
 
 

38. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

42. Botulism is a:

 
 
 
 

43. Methanogens belong to:

 
 
 
 

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

 
 
 
 

45. Club moss is the common name of :

 
 
 
 

46. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

48. In moss, sporogenous tissue arises from:

 
 
 
 

49. Helotism word is used for the symbiosis between :

 
 
 
 

50. 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?

 
 
 
 

51. Sleeping sickness disease in man is caused by:

 
 
 
 

52. One of the distinctive feature of Spirogyra is :

 
 
 
 

53. The chromosomal number in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

56. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

58. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

60. Viroids have:

 
 
 
 

61. Which one of the following statement is wrong?

 
 
 
 

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

 
 
 
 

63. Antibiotics cure the disease by:

 
 
 
 

64. Which of the following is a parasitic algae?

 
 
 
 

65. The sori in Dryopteris are found on:

 
 
 
 

66. Most resistant spore in bacteria is:

 
 
 
 

67. Iodine is obtained from:

 
 
 
 

68. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

71. Smut of maize is caused by :

 
 
 
 

72. The disease apple scab is caused by:

 
 
 
 

73. The disease symptom necrosis refers to :

 
 
 
 

74. Some biologists have used the term Mycetozoa for:

 
 
 
 

75. Pasteurization of milk involves heating for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

83. Most primitive embryophytes are placed in :

 
 
 
 

84. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

85. Pinus is:

 
 
 
 

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

 
 
 
 

87. The ferns are usually found:

 
 
 
 

88. Pasteurized milk is:

 
 
 
 

89. Fern prothallus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

92. The Rhizopus gametes are formed in:

 
 
 
 

93. The fungi that grow on wood are called:

 
 
 
 

94. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

96. Citrus canker is caused by:

 
 
 
 

97. Rhizoids of Riccia are :

 
 
 
 

98. Which causes red tide?

 
 
 
 

99. The megaspore of Selaginella on germination produces:

 
 
 
 

100. Vegetative reproduction in Cycas is by means of :

 
 
 
 

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

 
 
 
 

102. Each chloroplast in Spirogyra bears :

 
 
 
 

103. Viruses have:

 
 
 
 

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

 
 
 
 

105. Select the correct statement: (NEET 2016)

 
 
 
 

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

 
 
 
 

107. Sexual reproduction of lichen is due to :

 
 
 
 

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

 
 
 
 

109. Coenogamete is found in:

 
 
 
 

110. Desired type of Cycas can be grown by:

 
 
 
 

111. In Herpes virus DNA is:

 
 
 
 

112. Lichens are ecologically important because :

 
 
 
 

113. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. The role of meiosis is for:

 
 
 
 

117. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

119. The archegonia of Selaginella are differentiated by:

 
 
 
 

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

 
 
 
 

121. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

123. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

128. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

130. Funaria are commonly found :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

134. Infective part of virus was discovered by:

 
 
 
 

135. Which of the following have algal zone?

 
 
 
 

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

 
 
 
 

137. Broad spectrum antibiotic is, which:

 
 
 
 

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

 
 
 
 

139. Pteridophyta are also called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

143. Sporophyte of fern is:

 
 
 
 

144. Fern prothallus is:

 
 
 
 

145. Embryophyta includes:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

148.

149. Early blight of potato is caused by:

 
 
 
 

150. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

153. Water bloom is generally caused by :

 
 
 
 

154. Gymnosperms could also be called as:

 
 
 
 

155. Mycoplasma are:

 
 
 
 

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

 
 
 
 

157. The microsporophylls on the cone of Cycas are :

 
 
 
 

158. Fruits are not found in Cycas because:

 
 
 
 

159. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

161. Discovery of penicillin was based on:

 
 
 
 

162. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

166. Nannandria are:

 
 
 
 

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

 
 
 
 

168. Sporophyte of Funaria is :

 
 
 
 

169. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

172. Which is a tautonym?

 
 
 
 

173. The sporophyte of Riccia is represented by :

 
 
 
 

174. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

178. Who discovered streptomycin?

 
 
 
 

179. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

181. Mycoplasma was discovered by:

 
 
 
 

182. Pollination drop is:

 
 
 
 

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

 
 
 
 

184. The prothallus of fern is:

 
 
 
 

185. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

188. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

190. How is moss different from fern?

 
 
 
 

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

 
 
 
 

192. Facultative parasite is:

 
 
 
 

193. The group algae possesses representatives belonging to kingdom:

 
 
 
 

194. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

196. Endemic plants are characterised by their:

 
 
 
 

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

 
 
 
 

198. Typhoid in man is caused by:

 
 
 
 

199. Cap cells are found in the filament of:

 
 
 
 

200. Majority of lichens are :

 
 
 
 

201. Late blight of potato is caused by :

 
 
 
 

202. Proembryo in Pinus is :

 
 
 
 

203. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

205. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

207. Most primitive embryophytes are placed in:

 
 
 
 

208. Viruses are commonly transmitted in plants through:

 
 
 
 

209. Bacteriophage consists of:

 
 
 
 

210. Liverworts are included in :

 
 
 
 

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

 
 
 
 

212. Saccharomyces is well known for:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

215. Green plants are classified as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

218. Circular DNA is seen in:

 
 
 
 

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

 
 
 
 

220. Funaria is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

224. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

227. Which part of Riccia bears nurse cells?

 
 
 
 

228. Detailed study of bacteriophage was made by:

 
 
 
 

229. Which is an exception to cell theory?

 
 
 
 

230. Facultative saprophyte is:

 
 
 
 

231. Lichens form the first community in

 
 
 
 

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

 
 
 
 

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

 
 
 
 

234. In moss, peristomial teeth are:

 
 
 
 

235. Which of the following applies to Selaginella?

 
 
 
 

236. The lichens growing on rocks are called :

 
 
 
 

237. The largest known bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

241. What are Cyanobacteria?

 
 
 
 

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

 
 
 
 

243. In moss, calyptra is formed from:

 
 
 
 

244. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

246. The young leaves of Cycas have :

 
 
 
 

247. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

249. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

252. Which of the following is true for Selaginella?

 
 
 
 

253. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

255. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

258. The tallest moss in the world is :

 
 
 
 

259. Most primitive kind of flower is represented by:

 
 
 
 

260. The chief characteristic of class Ascomycetes is:

 
 
 
 

261. Ovules are not found enclosed in ovary in :

 
 
 
 

262. In Funaria :

 
 
 
 

263. Woody climbers are known as :

 
 
 
 

264. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

267. Quarantine regulations are concerned with:

 
 
 
 

268. Streptomyces falls under:

 
 
 
 

269. E coli is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

272. LSD is:

 
 
 
 

273. What is streptomycin?

 
 
 
 

274. Clostridium can:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

278. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

283. Some diseases caused by bacteria are:

 
 
 
 

284. Wine turns sour because of:

 
 
 
 

285. The central part of Funaria axis is :

 
 
 
 

286. Which one of the following is a monocot?

 
 
 
 

287. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

290. Vascular tissue is found in :

 
 
 
 

291. Which of the following are included in Tracheophyta?

 
 
 
 

292. The coralloid roots are :

 
 
 
 

293. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

297. Roots are absent in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

300. Usually, bacteria reproduce by:

 
 
 
 

301. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

304. Cycas plant in appearance resembles :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

307. The zoospores of Ulothrix are :

 
 
 
 

308. Enzymes are absent in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

311. Leaf spot of groundnut is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

315. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

318. In moss, reduction division occurs in :

 
 
 
 

319. The phloem of vascular system of Cycas is :

 
 
 
 

320. 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?

 
 
 
 

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

 
 
 
 

322. The two conjugating gametangia of Rhizopus are:

 
 
 
 

323.

324. Black rust of wheat is caused by:

 
 
 
 

325. Ovules are not found enclosed in ovary of:

 
 
 
 

326. Cycas is :

 
 
 
 

327. Acellular slime mold is/are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

332. Mycoplasma is different from bacteria due to:

 
 
 
 

333. Male gametes in Dryopteris are:

 
 
 
 

334. In Cycas:

 
 
 
 

335.

 

336. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

340. Select the wrong statement:

 
 
 
 

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

 
 
 
 

342. Oswald Tippo’s classification was based on :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

345. Fern plants are:

 
 
 
 

346. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Generic name of mango is:

 
 
 
 

353. In Cycas which structure is equivalent to stamen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. Cocci types of bacteria are:

 
 
 
 

358. In Cycas the fertilization is:

 
 
 
 

359. Enteric bacteria are those bacteria that live:

 
 
 
 

360. First animal pathogenic virus was discovered by:

 
 
 
 

361. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

365. Cleavage polyembryony is found in :

 
 
 
 

366. Longest known virus is:

 
 
 
 

367. 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?

 
 
 
 

368. Meristele of fern is:

 
 
 
 

369. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

370. Which class of Protozoa includes all parasitic forms?

 
 
 
 

371. In Gymnosperms endosperm is a:

 
 
 
 

372. Red rot of sugarcane is caused by:

 
 
 
 

373. Who named prion?

 
 
 
 

374. Fruits are not found in:

 
 
 
 

375. The smallest bacterium is:

 
 
 
 

376. Sometimes the bacterial cell is enclosed in:

 
 
 
 

377. Ovary is absent in:

 
 
 
 

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

 
 
 
 

379. Azolla and Salvinia both are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

383. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

385. Embryo formation is not known in :

 
 
 
 

386. The largest alga is:

 
 
 
 

387. Cyanophage is a virus that attacks:

 
 
 
 

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

 
 
 
 

389. Zoogametes are not found in:

 
 
 
 

390. Cycas is similar to a mustard plant :

 
 
 
 

391. The zygospore in Rhizopus on germination forms:

 
 
 
 

392. Which of the following lichens is harmful?

 
 
 
 

393. Simple polyembryony is found in :

 
 
 
 

394. Why is Cycas called a living fossil?

 
 
 
 

395. The fungi used as food are:

 
 
 
 

396. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

398. Ovules are not found enclosed in ovary in :

 
 
 
 

399. Parmelia belongs to :

 
 
 
 

400. Which statement is wrong in regard to bacteria?

 
 
 
 

401. Who discovered cyanophages?

 
 
 
 

402. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

405. All algae have:

 
 
 
 

406. Mixed cropping helps :

 
 
 
 

407. Lichen show :

 
 
 
 

408. The source of litmus is :

 
 
 
 

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

 
 
 
 

410. Which of the following statement is correct?

 
 
 
 

411. In moss, conducting tissue is made up of

 
 
 
 

412. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

414. The gametophyte of moss has distinct phases :

 
 
 
 

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

 
 
 
 

416. Fern phloem lacks:

 
 
 
 

417. Citrus canker is caused by :

 
 
 
 

418. Fruits are not found in :

 
 
 
 

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

 
 
 
 

420. Triple antigen injection or vaccine are for:

 
 
 
 

421. The stele of Dryopteris is a:

 
 
 
 

422. Bivalved siliceous shell or frustule occur in:

 
 
 
 

423. The fern plant is:

 
 
 
 

424. TMV was isolated in crystalline form by:

 
 
 
 

425. What is special feature of fern archegonia?

 
 
 
 

426. Most of the lichens are composed of :

 
 
 
 

427. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

431. All protozoans possess:

 
 
 
 

432. Diploxylic vascular bundles are found in:

 
 
 
 

433. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

435. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

437. Green plants are classified as:

 
 
 
 

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

 
 
 
 

439. Cycas revoluta is widely grown as :

 
 
 
 

440. The upper region of moss capsule is :

 
 
 
 

441. Genetic material of TMV is:

 
 
 
 

442. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

444. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

446. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

447. In angiosperms double fertilization represents:

 
 
 
 

448. Pneumonia is caused by:

 
 
 
 

449. To which class Riccia belongs :

 
 
 
 

450. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

452. Bacteriophages have been used as:

 
 
 
 

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

 
 
 
 

454. The term stele was given by:

 
 
 
 

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

 
 
 
 

456. Linnaeus is credited with introducing:

 
 
 
 

457. Fertility of the soil is increased by:

 
 
 
 

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

 
 
 
 

459. Which have the largest antherozoid?

 
 
 
 

460. 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:

 
 
 
 

461. Where does meiosis occur in yeast?

 
 
 
 

462. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

464. Lichens are pioneers of vegetation in a :

 
 
 
 

465. Mucilaginous canals in Cycas are found in :

 
 
 
 

466. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

468. Botulinum toxin effects:

 
 
 
 

469. Polystelic condition is found in:

 
 
 
 

470. The gametophyte of fern bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

473. Pteridophytes are also known as :

 
 
 
 

474. Plasmids are:

 
 
 
 

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

 
 
 
 

476. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

477. Spores of which plants have chloroplast:

 
 
 
 

478. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

480. Photosynthetic bacteria have:

 
 
 
 

481. Embryophyta includes :

 
 
 
 

482. Siphonogamy is found in:

 
 
 
 

483. Lichens reproduce by :

 
 
 
 

484. Select the wrong statement:

 
 
 
 

485. Chemosynthetic bacteria are:

 
 
 
 

486. Which is not found in bacteria?

 
 
 
 

487. Pollination in Cycas takes place by :

 
 
 
 

488. Placenta in fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

491. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

493. The roots of Cycas are :

 
 
 
 

494. Ergot of rye is caused by:

 
 
 
 

495. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

497. Cycas is:

 
 
 
 

498. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

501. Which is a fungicide?

 
 
 
 

502. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

505. An alga which is rich in proteins:

 
 
 
 

506. Maximum diversity of life forms occurs in :

 
 
 
 

507. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

508. Winged pollen grains are found in :

 
 
 
 

509. Redness of red sea is due to :

 
 
 
 

510. The nucleus of bacteria is:

 
 
 
 

511. Tautonyms are illegitimate in:

 
 
 
 

512. Little leaf disease of Brinjal is caused by:

 
 
 
 

513. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

514. Which is not true for Escherichia coli?

 
 
 
 

515. In tracheophyta:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

518. The smallest unit of classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

521. The prothallus of fern represents the plant:

 
 
 
 

522. All archaebacteria lack:

 
 
 
 

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

 
 
 
 

524. Some bacteria cannot be killed easily because of:

 
 
 
 

525. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

527. Which lichen is called Reindeer moss?

 
 
 
 

528. Which of the following is true for viruses?

 
 
 
 

529. In Selaginella, the microsporangia are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

532. Ergot is obtained from :

 
 
 
 

533. Indusium in Dryopteris is:

 
 
 
 

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

 
 
 
 

535. Funaria is :

 
 
 
 

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

 
 
 
 

537. Germination of the seed of Pinus is :

 
 
 
 

538. In a diplontic life cycle:

 
 
 
 

539. Streptomycin is obtained from:

 
 
 
 

540. Kuru, a human disease is caused by:

 
 
 
 

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

 
 
 
 

542. The order generally ends with:

 
 
 
 

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

 
 
 
 

544. How a fern differs from a moss?

 
 
 
 

545. Isomorphic type alternation of generation is found in:

 
 
 
 

546. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

548. Anoxygenic photosynthesis occurs in:

 
 
 
 

549. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

554. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

556. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

558. Protists which are diploid reproduce sexually by:

 
 
 
 

559. The flagella of Chlamydomonas are:

 
 
 
 

560. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

566. An Hfr bacterium is one that contains:

 
 
 
 

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

 
 
 
 

568. Heterotrichous habit means :

 
 
 
 

569. Reproduction in Cycas takes place by :

 
 
 
 

570. Asexual reproductive body of Volvox is called:

 
 
 
 

571. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

572. Yeast is a source of:

 
 
 
 

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

 
 
 
 

574. Rhizophore of Selaginella is:

 
 
 
 

575. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

581. Diphtheria is caused by:

 
 
 
 

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

 
 
 
 

583. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

585. Which of the following is a monocot?

 
 
 
 

586. Heterosporous pteridophytes always form:

 
 
 
 

587. Lichens show :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

590. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

593. Which is an edible fungus?

 
 
 
 

594. The sporangia of Selaginella are attached:

 
 
 
 

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

 
 
 
 

596. Total parasites belong to:

 
 
 
 

597. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

599. Ethylene oxide is widely used to:

 
 
 
 

600. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

601. The leaves of Funaria are :

 
 
 
 

602. The chloroplast of Chlamydomonas are:

 
 
 
 

603. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

606. The archegonia in Selaginella develop on:

 
 
 
 

607. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

612. The sexual reproductive organs in Rhizopus are:

 
 
 
 

613. Which is absent from the xylem of Cycas?

 
 
 
 

614. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

617. Ulothrix produces :

 
 
 
 

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

 
 
 
 

619. Virus and bacteriophage are made-up of:

 
 
 
 

620. Economic importance of bacteria lies in their being:

 
 
 
 

621. Banana bunchy top is caused by :

 
 
 
 

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

 
 
 
 

623. Psilotum is:

 
 
 
 

624. Spirogyra represents the :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

627. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

629. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

630. Red rot of sugarcane is caused by :

 
 
 
 

631. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

633. Smallpox is caused by:

 
 
 
 

634. Bacteria are found everywhere, except:

 
 
 
 

635. In Pteris, the archegonia are present:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

638. Interferon is a:

 
 
 
 

639. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

641. The sporophyte of Riccia is :

 
 
 
 

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

 
 
 
 

643. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

645. Downy mildew disease is caused by :

 
 
 
 

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

 
 
 
 

647. The megasporangium of Selaginella is:

 
 
 
 

648. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

656. The middle sterile part of capsule is called:

 
 
 
 

657. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. Multicellular and jacketed sex organs are found in :

 
 
 
 

661. The similarity between cyanobacteria and bacteria:

 
 
 
 

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

 
 
 
 

663. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

666. What is absent in Deuteromycetes?

 
 
 
 

667. Water-net is the name of:

 
 
 
 

668. The fungi are usually:

 
 
 
 

669. John Hutchinson divided dicots into two divisions:

 
 
 
 

670. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

672. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

674. Which is the nuclear material in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

681. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

683. Agar-agar is obtained from:

 
 
 
 

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

 
 
 
 

685. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

686. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

689. In moss, sporophyte is formed on:

 
 
 
 

690. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

692. In Gymnocarpeae the fruiting body is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

695. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

699. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

702. Seeds are characteristically found in:

 
 
 
 

703. In dinoflagellates, the two flagella are:

 
 
 
 

704. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

713. Pseudomycelium is found in:

 
 
 
 

714. Lichens are the indicator of pollution :

 
 
 
 

715. Iodine is obtained from :

 
 
 
 

716. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

718. Bacteria are placed under:

 
 
 
 

719.

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

 
 
 
 

721. The fungi are mostly:

 
 
 
 

722. 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:

 
 
 
 

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

 
 
 
 

724. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

727. Pasteur is famous for his:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

731. Virion refers to:

 
 
 
 

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

 
 
 
 

733. The chief characteristic of bryophyta is that :

 
 
 
 

734. Disease resistant plant varieties can be produced by :

 
 
 
 

735. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

737. 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:

 
 
 
 

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

 
 
 
 

739. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

741. What are plasmids?

 
 
 
 

742. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

745. Bacteria differ from viruses in being sensitive to:

 
 
 
 

746. Which bacteria convert nitrate into nitrogen?

 
 
 
 

747. The leaves of Funaria are :

 
 
 
 

748. Germ theory of disease was proposed by:

 
 
 
 

749. Nitrogen-fixing bacteria may be located:

 
 
 
 

750. Ovary is absent in :

 
 
 
 

751. Etiology includes the study of :

 
 
 
 

752. Saccharomyces ludwigii ascus produces:

 
 
 
 

753. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

754. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

755. Milk is converted to curd by:

 
 
 
 

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

 
 
 
 

757. Mycoplasma are sensitive to:

 
 
 
 

758. The seedless plants which possess vascular tissues are:

 
 
 
 

759. Photoautotrophic bacteria have:

 
 
 
 

760. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

762. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

764. Cyathia is characterized by:

 
 
 
 

765. Aflatoxin is produced by:

 
 
 
 

766. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

770. Which is a gametophytic tissue?

 
 
 
 

771. The most primitive vascular plants is:

 
 
 
 

772. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

774. Late blight of potato is caused by:

 
 
 
 

775. In Cycas microsporangia are borne on:

 
 
 
 

776. Cell walls of Gram-positive bacteria contain:

 
 
 
 

777. Pinus gerardiana is :

 
 
 
 

778. What is mycorrhiza?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

781. The spur of Pinus roxburghii has :

 
 
 
 

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

 
 
 
 

783. Which group of algae have an incipient nucleus?

 
 
 
 

784. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

788. Bacteria growing on synthetic medium are called:

 
 
 
 

789. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

792. Cycas is different from mango in :

 
 
 
 

793. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

794. Centric discoid form of diatom is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

797. Which of the following shows heterotrichous habit?

 
 
 
 

798. The Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

801. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

803. The lambda phase is a:

 
 
 
 

804. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

806. The first to isolate a plant virus was:

 
 
 
 

807. Pythium debaryanum is the causative agent of:

 
 
 
 

808. In moss, stomata are found:

 
 
 
 

809. Chief constituents of bordeaux mixture are :

 
 
 
 

810. Mostly type of zygospore in Ulothrix is:

 
 
 
 

811. Fruiting body of lichens is :

 
 
 
 

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

 
 
 
 

813. Amoeba is a member of the phylum:

 
 
 
 

814. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

816. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

818. What is the role of nitrifying bacteria?

 
 
 
 

819. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

821. Heterospory and ligulate leaves are a feature of:

 
 
 
 

822. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

823. What is a vector?

 
 
 
 

824. To which country Antony van Leeuwenhoek belong?

 
 
 
 

825. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

826. The antibiotic is obtained from:

 
 
 
 

827. Rice, pea, potato are :

 
 
 
 

828. Cellular slime mold is:

 
 
 
 

829. Protozoans are considered animals because these are:

 
 
 
 

830. Which fixes atmospheric nitrogen?

 
 
 
 

831. Saccharomyces is used in:

 
 
 
 

832. Rhizopus and yeast are usually:

 
 
 
 

833. Oswald Tippo’s classification is:

 
 
 
 

834. The alga, Spirogyra are found in :

 
 
 
 

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

 
 
 
 

836. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

839. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

841. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

843. 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?

 
 
 
 

844. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

845. The development of sporangium in Selaginella is:

 
 
 
 

846. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

848. The sporangiophores in Rhizopus are:

 
 
 
 

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

 
 
 
 

850. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

851. Metulae are found in:

 
 
 
 

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

 
 
 
 

853. The sporangium of fern contains nearly:

 
 
 
 

854. Gametophyte is the main plant body in :

 
 
 
 

855. Pinus microsporophyll bears:

 
 
 
 

856. Which of the following have a prokaryotic cell?

 
 
 
 

857. Cryptogams include :

 
 
 
 

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

 
 
 
 

859. Most of the algae are :

 
 
 
 

860. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

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

 
 
 
 

862. Water-borne bacterial diseases are:

 
 
 
 

863. The male gametes of Pinus are :

 
 
 
 

864. The spermatozoids of Cycas are :