Quiz_Random

1. Fruits are not found in Cycas because:

 
 
 
 

2. In Selaginella, the microsporangia are:

 
 
 
 

3. The two conjugating gametangia of Rhizopus are:

 
 
 
 

4. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

9. The chloroplast of Chlamydomonas are:

 
 
 
 

10. 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?

 
 
 
 

11. Saccharomyces ludwigii ascus produces:

 
 
 
 

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

 
 
 
 

13. Most of the algae are :

 
 
 
 

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

 
 
 
 

15. What is absent in Deuteromycetes?

 
 
 
 

16. Vascular cryptogams is the term used for:

 
 
 
 

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

 
 
 
 

18. The word “sea weeds” is used for:

 
 
 
 

19. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

21. Maximum diversity of life forms occurs in :

 
 
 
 

22. Pollination in Pinus is :

 
 
 
 

23. Cell walls of Gram-positive bacteria contain:

 
 
 
 

24. In angiosperms double fertilization represents:

 
 
 
 

25. Which causes red tide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Endemic plants are characterised by their:

 
 
 
 

31. How a fern differs from a moss?

 
 
 
 

32. Mycoplasma contains:

 
 
 
 

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

 
 
 
 

34. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

38. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

40. The alga, Spirogyra are found in :

 
 
 
 

41. Green plants are classified as:

 
 
 
 

42. Generic name of mango is:

 
 
 
 

43. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

44. Mucilaginous canals in Cycas are found in :

 
 
 
 

45. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

48. Meiosis in Ulothrix takes place:

 
 
 
 

49. Male gametes in Dryopteris are:

 
 
 
 

50. The tallest moss in the world is :

 
 
 
 

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

 
 
 
 

52. Isomorphic type alternation of generation is found in:

 
 
 
 

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

 
 
 
 

54. Kuru, a human disease is caused by:

 
 
 
 

55. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

58. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

60. 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?

 
 
 
 

61. Funaria are commonly found :

 
 
 
 

62. Pythium debaryanum is the causative agent of:

 
 
 
 

63. 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:

 
 
 
 

64. Circular DNA is seen in:

 
 
 
 

65. An alga which is rich in proteins:

 
 
 
 

66. Proembryo in Pinus is :

 
 
 
 

67. Which of the following is true for viruses?

 
 
 
 

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

 
 
 
 

69. The lambda phase is a:

 
 
 
 

70. Little leaf disease of Brinjal is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

74. Bacteria are found everywhere, except:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Cycas plant in appearance resembles :

 
 
 
 

78. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

80. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

81. Reproduction in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

84. Pneumonia is caused by:

 
 
 
 

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

 
 
 
 

86. 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:

 
 
 
 

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

 
 
 
 

88. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

91. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

93. Lichens reproduce by :

 
 
 
 

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

 
 
 
 

95. Water-net is the name of:

 
 
 
 

96. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

98. Which of the following is true for Selaginella?

 
 
 
 

99. Multicellular and jacketed sex organs are found in :

 
 
 
 

100. Which group of algae have an incipient nucleus?

 
 
 
 

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

 
 
 
 

102. All protozoans possess:

 
 
 
 

103. Protists which are diploid reproduce sexually by:

 
 
 
 

104. Lichen show :

 
 
 
 

105. Discovery of penicillin was based on:

 
 
 
 

106. First animal pathogenic virus was discovered by:

 
 
 
 

107. Which is an exception to cell theory?

 
 
 
 

108. All archaebacteria lack:

 
 
 
 

109. Viruses have:

 
 
 
 

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

 
 
 
 

111. Which is an edible fungus?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

116. Select the correct statement: (NEET 2016)

 
 
 
 

117. The sori in Dryopteris are found on:

 
 
 
 

118. Rice, pea, potato are :

 
 
 
 

119. Which class of Protozoa includes all parasitic forms?

 
 
 
 

120. 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:

 
 
 
 

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

 
 
 
 

122. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

125. Vascular tissue is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

129. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

131. Which of the following does not contain chlorophyll?

 
 
 
 

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

 
 
 
 

133. Late blight of potato is caused by :

 
 
 
 

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

 
 
 
 

135. In Cycas microsporangia are borne on:

 
 
 
 

136. Linnaeus is credited with introducing:

 
 
 
 

137. Funaria is :

 
 
 
 

138. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. Redness of red sea is due to :

 
 
 
 

142. In binomial system most of the words are:

 
 
 
 

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

 
 
 
 

144. To which country Antony van Leeuwenhoek belong?

 
 
 
 

145. Small epidermal swellings due to infection are called :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

149. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

153. Most common type of conjugation in Spirogyra is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

156. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

158. The gametophyte of moss has distinct phases :

 
 
 
 

159. The sporangia of Selaginella are attached:

 
 
 
 

160. The tree fern is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

164. Triple antigen injection or vaccine are for:

 
 
 
 

165. Plasmids are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

170. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

173. An Hfr bacterium is one that contains:

 
 
 
 

174. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

178. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

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

 
 
 
 

180. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

182. The leafy fern plant represents the:

 
 
 
 

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

 
 
 
 

184. Bryophyta have been placed in cryptogams because:

 
 
 
 

185. Which of the following are absent in Mycoplasma?

 
 
 
 

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

 
 
 
 

187. The central part of Funaria axis is :

 
 
 
 

188. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

190. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

193. E coli is a:

 
 
 
 

194. Asexual reproductive body of Volvox is called:

 
 
 
 

195. The fungi are usually:

 
 
 
 

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

 
 
 
 

197. Vegetative reproduction in Cycas is by means of :

 
 
 
 

198. Pinus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

202. Which is the nuclear material in bacteria?

 
 
 
 

203. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

207. Bacteria differ from viruses in being sensitive to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

212. Metulae are found in:

 
 
 
 

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

 
 
 
 

214. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

216. Siphonogamy is found in:

 
 
 
 

217. How is moss different from fern?

 
 
 
 

218. Bacteria growing on synthetic medium are called:

 
 
 
 

219. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

221. Yeast grows more rapidly in:

 
 
 
 

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

 
 
 
 

223. Choose the correct statement about Spirogyra:

 
 
 
 

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

 
 
 
 

225. Which condition is found in Cycas?

 
 
 
 

226. Bentham and Hooker placed gymnosperms:

 
 
 
 

227. Cleavage polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

230. Which of the following is a monocot?

 
 
 
 

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

 
 
 
 

232. Club moss is the common name of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

235. Pinus microsporophyll bears:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

238. Late blight of potato is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

241. Liverworts are included in :

 
 
 
 

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

 
 
 
 

243. The leaves of Funaria are :

 
 
 
 

244. To which class Riccia belongs :

 
 
 
 

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

 
 
 
 

246. Which of the following have algal zone?

 
 
 
 

247. The fern plant is:

 
 
 
 

248. Funaria is :

 
 
 
 

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

 
 
 
 

250. Early blight of potato is caused by:

 
 
 
 

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

 
 
 
 

252. Oswald Tippo’s classification is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

256. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

257. Yeast belongs to class:

 
 
 
 

258. 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:

 
 
 
 

259. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

260. Reserve food in Euglena is:

 
 
 
 

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

 
 
 
 

262. The first to isolate a plant virus was:

 
 
 
 

263. Winged pollen grains are found in :

 
 
 
 

264. The young leaves of Cycas have :

 
 
 
 

265. TMV was isolated in crystalline form by:

 
 
 
 

266. Which of the following is a heterosporous pteridophyte?

 
 
 
 

267. The teeth of peristome of Funaria are :

 
 
 
 

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

 
 
 
 

269. Nannandria are:

 
 
 
 

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

 
 
 
 

271. Fern plants are:

 
 
 
 

272. The leaf of Cycas shows:

 
 
 
 

273. Which of the following shows heterotrichous habit?

 
 
 
 

274. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

278. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

281. Each chloroplast in Spirogyra bears :

 
 
 
 

282. Ovary is absent in:

 
 
 
 

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

 
 
 
 

284. Acetobacter is useful in:

 
 
 
 

285. Viruses are commonly transmitted in plants through:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

288. Cap cells are found in the filament of:

 
 
 
 

289. Pasteur is famous for his:

 
 
 
 

290. Sexual reproduction of lichen is due to :

 
 
 
 

291. Desired type of Cycas can be grown by:

 
 
 
 

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

 
 
 
 

293. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

295. Majority of lichens are :

 
 
 
 

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

 
 
 
 

297. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

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

 
 
 
 

299. Mycoplasmas are not viruses in nature because:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

306. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

307.

308. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

310. Fruits are not found in:

 
 
 
 

311. Botulinum toxin effects:

 
 
 
 

312. Lichens are ecologically important because :

 
 
 
 

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

 
 
 
 

314. In moss, stomata are found:

 
 
 
 

315. Ectocarpus produces:

 
 
 
 

316. The sporophyte of Riccia is represented by :

 
 
 
 

317. A gill of Agaricus:

 
 
 
 

318. The lichens growing on rocks are called :

 
 
 
 

319. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

321. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

325. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

327. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

330. Red rot of sugarcane is caused by :

 
 
 
 

331. Methanogens belong to:

 
 
 
 

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

 
 
 
 

333. Lichens reproduce by :

 
 
 
 

334. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

337. The leaves of Funaria are :

 
 
 
 

338. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

339. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

343. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

344. Etiology includes the study of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

347. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

348. Which among the following is a shrub?

 
 
 
 

349. 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:

 
 
 
 

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

 
 
 
 

351. Psilotum is:

 
 
 
 

352. Who among the following discovered virus?

 
 
 
 

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

 
 
 
 

354. Bacteriophage consists of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

357. Mostly type of zygospore in Ulothrix is:

 
 
 
 

358. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

360. Gymnosperms could also be called as:

 
 
 
 

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

 
 
 
 

362. Streptomyces falls under:

 
 
 
 

363. Photoautotrophic bacteria have:

 
 
 
 

364.

365. Parmelia belongs to :

 
 
 
 

366. In tracheophyta:

 
 
 
 

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

 
 
 
 

368. The largest known bacterium is:

 
 
 
 

369. Which is not true for Escherichia coli?

 
 
 
 

370. Genetic material of TMV is:

 
 
 
 

371. Sporophyte of fern is:

 
 
 
 

372. The chief characteristic of class Ascomycetes is:

 
 
 
 

373. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

374. Halophiles are the bacteria that require for growth:

 
 
 
 

375. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

378. The archegonia of Selaginella are differentiated by:

 
 
 
 

379. Yeast is a source of:

 
 
 
 

380. Ovules are not found enclosed in ovary in :

 
 
 
 

381. The order generally ends with:

 
 
 
 

382. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

387. Wine turns sour because of:

 
 
 
 

388. The development of sporangium in Selaginella is:

 
 
 
 

389. Bacteria were first discovered by:

 
 
 
 

390. Cellular slime mold is:

 
 
 
 

391. Disease resistant plant varieties can be produced by :

 
 
 
 

392. Seeds are characteristically found in :

 
 
 
 

393. The root nodules of leguminous plants contain:

 
 
 
 

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

 
 
 
 

395. The most primitive vascular plants is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

400. Which part of Riccia bears nurse cells?

 
 
 
 

401. Embryophyta includes :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

404. Synzoospore is produced in:

 
 
 
 

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

 
 
 
 

406. Simple polyembryony is found in :

 
 
 
 

407. 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:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

410. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

412. Lichens are pioneers of vegetation in a :

 
 
 
 

413. In dinoflagellates, the two flagella are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

416. Diphtheria is caused by:

 
 
 
 

417. Aflatoxin is produced by:

 
 
 
 

418. Facultative saprophyte is:

 
 
 
 

419. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

421. The prothallus of fern is:

 
 
 
 

422. Anoxygenic photosynthesis occurs in:

 
 
 
 

423. Why is Cycas called a living fossil?

 
 
 
 

424. Green plants are classified as :

 
 
 
 

425. Mixed cropping helps :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

429. The spermatozoids of Cycas are :

 
 
 
 

430. Bivalved siliceous shell or frustule occur in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

434. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

437. In moss, conducting tissue is made up of

 
 
 
 

438. Rhizopus belongs to:

 
 
 
 

439. Mycoplasma are:

 
 
 
 

440. Most of the lichens are composed of :

 
 
 
 

441. Water-borne bacterial diseases are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

445. What is the role of nitrifying bacteria?

 
 
 
 

446. The mycelium of Rhizopus is:

 
 
 
 

447. The source of litmus is :

 
 
 
 

448. Which lichen is called Reindeer moss?

 
 
 
 

449. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

456. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

457. Smut of maize is caused by :

 
 
 
 

458. Saccharomyces is well known for:

 
 
 
 

459. The microsporophylls on the cone of Cycas are :

 
 
 
 

460. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

463. The prothallus of fern represents the plant:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

469. Who named prion?

 
 
 
 

470. The ferns are usually found:

 
 
 
 

471. Where does meiosis occur in yeast?

 
 
 
 

472. What is streptomycin?

 
 
 
 

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

 
 
 
 

474. Antibiotic has been extracted from :

 
 
 
 

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

 
 
 
 

476. Heterospory and ligulate leaves are a feature of:

 
 
 
 

477. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

479. Vascular cryptogam is the term used for :

 
 
 
 

480. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

483. Roots are absent in :

 
 
 
 

484. Which is absent from the xylem of Cycas?

 
 
 
 

485.

 

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

 
 
 
 

487. The gametophyte of fern bears:

 
 
 
 

488. All algae have:

 
 
 
 

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

 
 
 
 

490. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

493. In Funaria :

 
 
 
 

494. Fruits are not found in :

 
 
 
 

495. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

497. In Cycas the fertilization is:

 
 
 
 

498. Some diseases caused by bacteria are:

 
 
 
 

499. Antibiotics cure the disease by:

 
 
 
 

500. Which is a fungicide?

 
 
 
 

501. Polystelic condition is found in:

 
 
 
 

502. The vascular bundles of Cycas stem are :

 
 
 
 

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

 
 
 
 

504. Economic importance of bacteria lies in their being:

 
 
 
 

505. Photosynthetic bacteria have:

 
 
 
 

506.

507. Cyathia is characterized by:

 
 
 
 

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

 
 
 
 

509. The nucleus of bacteria is:

 
 
 
 

510. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

511. The stele of Dryopteris is a:

 
 
 
 

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

 
 
 
 

513. Chief constituents of bordeaux mixture are :

 
 
 
 

514. Special feature of pollen grains of Pinus is :

 
 
 
 

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

 
 
 
 

516. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

519. Placenta in fern is:

 
 
 
 

520. Streptomycin is obtained from:

 
 
 
 

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

 
 
 
 

522. Viroids have:

 
 
 
 

523. Ginkgo biloba is a:

 
 
 
 

524. Iodine is obtained from :

 
 
 
 

525. Banana bunchy top is caused by :

 
 
 
 

526. In Pteris, the archegonia are present:

 
 
 
 

527. The fungi used as food are:

 
 
 
 

528. Pasteurization of milk involves heating for:

 
 
 
 

529. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

533. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

536. Protozoans are considered animals because these are:

 
 
 
 

537. Clostridium can:

 
 
 
 

538. Penicillin was discovered by:

 
 
 
 

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

 
 
 
 

540. In Herpes virus DNA is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

543. The megasporangium of Selaginella is:

 
 
 
 

544. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

547. In Gymnocarpeae the fruiting body is :

 
 
 
 

548. The group algae possesses representatives belonging to kingdom:

 
 
 
 

549. Which of the following is sago palm?

 
 
 
 

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

 
 
 
 

551. Protistan algae obtain their food as:

 
 
 
 

552. Bacteria are placed under:

 
 
 
 

553. Azolla and Salvinia both are:

 
 
 
 

554. Mycoplasma was discovered by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

557. Broad spectrum antibiotic is, which:

 
 
 
 

558. In a diplontic life cycle:

 
 
 
 

559. What are Cyanobacteria?

 
 
 
 

560. In Funaria, calyptra is derived from :

 
 
 
 

561. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

565. One of the distinctive feature of Spirogyra is :

 
 
 
 

566. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

569. Virion refers to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

572. Ethylene oxide is widely used to:

 
 
 
 

573. The smallest unit of classification is:

 
 
 
 

574. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

578. Ovary is absent in :

 
 
 
 

579. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

581. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

584. The similarity between cyanobacteria and bacteria:

 
 
 
 

585. The chief characteristic of bryophyta is that :

 
 
 
 

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

 
 
 
 

587. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

591. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

595. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

596. Leaf spot of groundnut is caused by :

 
 
 
 

597. The archegonia in Selaginella develop on:

 
 
 
 

598. Which bacteria convert nitrate into nitrogen?

 
 
 
 

599. The zoospores of Ulothrix are :

 
 
 
 

600. Leprosy is caused by:

 
 
 
 

601. Pteridophyta are also called:

 
 
 
 

602. Iodine is obtained from:

 
 
 
 

603. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

605. The zygospore in Rhizopus on germination forms:

 
 
 
 

606. Quarantine regulations are concerned with:

 
 
 
 

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

 
 
 
 

608. Diploxylic vascular bundles are found in:

 
 
 
 

609. Which is a tautonym?

 
 
 
 

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

 
 
 
 

611. Detailed study of bacteriophage was made by:

 
 
 
 

612. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

614. Fern phloem lacks:

 
 
 
 

615. In Cycas which structure is equivalent to stamen?

 
 
 
 

616. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

617. Ovules are not found enclosed in ovary of:

 
 
 
 

618. Select the wrong statement:

 
 
 
 

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

 
 
 
 

620. Fruiting body of lichens is :

 
 
 
 

621. Heterospory is the production of:

 
 
 
 

622. Common phycobiont in a lichen is :

 
 
 
 

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

 
 
 
 

624. The Rhizopus is:

 
 
 
 

625. Select the wrong statement:

 
 
 
 

626. Some bacteria cannot be killed easily because of:

 
 
 
 

627. Cycas is similar to a mustard plant :

 
 
 
 

628. Indusium in Dryopteris is:

 
 
 
 

629. Agar-agar is obtained from:

 
 
 
 

630. Sleeping sickness disease in man is caused by:

 
 
 
 

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

 
 
 
 

632. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

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

 
 
 
 

634. Helotism word is used for the symbiosis between :

 
 
 
 

635. Usually, bacteria reproduce by:

 
 
 
 

636. Which have the largest antherozoid?

 
 
 
 

637. The largest alga is:

 
 
 
 

638. Sporophyte of Funaria is :

 
 
 
 

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

 
 
 
 

640. John Hutchinson divided dicots into two divisions:

 
 
 
 

641. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

643. In moss, sporophyte is formed on:

 
 
 
 

644. Virus and bacteriophage are made-up of:

 
 
 
 

645. Which one of the following statement is wrong?

 
 
 
 

646. Who discovered cyanophages?

 
 
 
 

647. Meristele of fern is:

 
 
 
 

648. Fertility of the soil is increased by:

 
 
 
 

649. Enzymes are absent in:

 
 
 
 

650. In moss, sporogenous tissue arises from:

 
 
 
 

651. Smallpox is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

655. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

657. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

660. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

663. Fern prothallus is:

 
 
 
 

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

 
 
 
 

665. The sporophyte of Riccia is :

 
 
 
 

666. Absorptive nutrition is:

 
 
 
 

667. Embryophyta includes:

 
 
 
 

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

 
 
 
 

669. Soil fertility is lost by the activities of:

 
 
 
 

670. Nitrogen-fixing bacteria may be located:

 
 
 
 

671. Ergot is obtained from :

 
 
 
 

672. Most primitive embryophytes are placed in:

 
 
 
 

673. Infective part of virus was discovered by:

 
 
 
 

674. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

675. The antibiotic is obtained from:

 
 
 
 

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

 
 
 
 

677. Mycoplasma is different from bacteria due to:

 
 
 
 

678. Lichens show :

 
 
 
 

679. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

681. Which one of the following is a monocot?

 
 
 
 

682. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

686. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

687. Gametophyte is the main plant body in :

 
 
 
 

688. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

690. The sexual reproductive organs in Rhizopus are:

 
 
 
 

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

 
 
 
 

692. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

694. Woody climbers are known as :

 
 
 
 

695. The orders generally have the uniform endings:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

699. LSD is:

 
 
 
 

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

 
 
 
 

701. Ulothrix produces :

 
 
 
 

702. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

703. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

705. Black rust of wheat is caused by:

 
 
 
 

706. Heterocysts are found in :

 
 
 
 

707. Pollination drop is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

710. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

712. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

715. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

717. Lichens form the first community in

 
 
 
 

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

 
 
 
 

719. Heterosporous pteridophytes always form:

 
 
 
 

720. The upper region of moss capsule is :

 
 
 
 

721. What are plasmids?

 
 
 
 

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

 
 
 
 

723. Pseudomycelium is found in:

 
 
 
 

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

 
 
 
 

725. Cryptogams include :

 
 
 
 

726. Black rust of wheat is caused by:

 
 
 
 

727. In moss, reduction division occurs in :

 
 
 
 

728. Rhizopus and yeast are usually:

 
 
 
 

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

 
 
 
 

730. Facultative parasite is:

 
 
 
 

731. Which is a redwood tree?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

734. The coralloid roots are :

 
 
 
 

735. Acellular slime mold is/are:

 
 
 
 

736. The male gametes of Pinus are :

 
 
 
 

737. Some biologists have used the term Mycetozoa for:

 
 
 
 

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

 
 
 
 

739. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

742. Gram stain is used to:

 
 
 
 

743. The fungi are mostly:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

746. Mycoplasma are sensitive to:

 
 
 
 

747. The phloem of vascular system of Cycas is :

 
 
 
 

748. The smallest bacterium is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

753. The disease symptom necrosis refers to :

 
 
 
 

754. Cycas is different from mango in :

 
 
 
 

755. What is a vector?

 
 
 
 

756. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

759. Spirogyra represents the :

 
 
 
 

760. The megaspore of Selaginella on germination produces:

 
 
 
 

761. The seedless plants which possess vascular tissues are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

765. Downy mildew disease is caused by :

 
 
 
 

766. Transfusion tissue is present in the leaflet of:

 
 
 
 

767. Longest known virus is:

 
 
 
 

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

 
 
 
 

769. Most primitive embryophytes are placed in :

 
 
 
 

770. Most appropriate word for protozoans is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

776. Total parasites belong to:

 
 
 
 

777. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

779. Zoogametes are not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

782. The plants of Funaria grow :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

785. Which of the following have a prokaryotic cell?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

788. In Cycas:

 
 
 
 

789. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

791. The role of meiosis is for:

 
 
 
 

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

 
 
 
 

793. The spur of Pinus roxburghii has :

 
 
 
 

794. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

796. True sexuality is not found in:

 
 
 
 

797. Coenogamete is found in:

 
 
 
 

798. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

800. Ergot of rye is caused by:

 
 
 
 

801. Cycas is :

 
 
 
 

802. Red rot of sugarcane is caused by:

 
 
 
 

803. Cycas is:

 
 
 
 

804. Nitrifying bacteria play an important role by converting:

 
 
 
 

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

 
 
 
 

806. Tautonyms are illegitimate in:

 
 
 
 

807. Cyanophage is a virus that attacks:

 
 
 
 

808. Citrus canker is caused by:

 
 
 
 

809. Cycas revoluta is widely grown as :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

812. Milk is converted to curd by:

 
 
 
 

813. The sporangiophores in Rhizopus are:

 
 
 
 

814. Sometimes the bacterial cell is enclosed in:

 
 
 
 

815. Lichens are the indicator of pollution :

 
 
 
 

816. 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:

 
 
 
 

817. Funaria can be differentiated from Cycas :

 
 
 
 

818. Pinus gerardiana is :

 
 
 
 

819. Oswald Tippo’s classification was based on :

 
 
 
 

820. What is special feature of fern archegonia?

 
 
 
 

821. Bacteriophages have been used as:

 
 
 
 

822. Botulism is a:

 
 
 
 

823. Penicillin is obtained from:

 
 
 
 

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

 
 
 
 

825. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

827. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

829. Heterotrichous habit means :

 
 
 
 

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

 
 
 
 

831. The chromosomal number in:

 
 
 
 

832. Which of the following is a parasitic algae?

 
 
 
 

833. Interferon is a:

 
 
 
 

834. . Tapetum develops in:

 
 
 
 

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

 
 
 
 

836. Bryophyta have a special character from other plants:

 
 
 
 

837. Which of the following applies to Selaginella?

 
 
 
 

838. The sporangium of fern contains nearly:

 
 
 
 

839. Seeds are characteristically found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

842. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

844. Centric discoid form of diatom is:

 
 
 
 

845. Which of the following lichens is harmful?

 
 
 
 

846. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

848. What is mycorrhiza?

 
 
 
 

849. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

851. Standard size of a herbarium sheet is:

 
 
 
 

852. Enteric bacteria are those bacteria that live:

 
 
 
 

853. Germination of the seed of Pinus is :

 
 
 
 

854. In moss, calyptra is formed from:

 
 
 
 

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

 
 
 
 

856. The truncated cone of HIV consists of:

 
 
 
 

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

 
 
 
 

858. Spermatophyta are characterized by producing:

 
 
 
 

859. Most resistant spore in bacteria is:

 
 
 
 

860. Fern prothallus produces:

 
 
 
 

861. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

863. Rhizophore of Selaginella is:

 
 
 
 

864. Citrus canker is caused by :