Quiz_Random

1. In Funaria :

 
 
 
 

2. Red rot of sugarcane is caused by :

 
 
 
 

3. Tautonyms are illegitimate in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

7. Which one of the following statement is wrong?

 
 
 
 

8. Total parasites belong to:

 
 
 
 

9. The seedless plants which possess vascular tissues are:

 
 
 
 

10. First animal pathogenic virus was discovered by:

 
 
 
 

11. Citrus canker is caused by :

 
 
 
 

12. Which is a redwood tree?

 
 
 
 

13. Which causes red tide?

 
 
 
 

14. Ulothrix produces :

 
 
 
 

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

 
 
 
 

16. In moss, peristomial teeth are:

 
 
 
 

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

 
 
 
 

18. Embryophyta includes:

 
 
 
 

19. The megasporangium of Selaginella is:

 
 
 
 

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

 
 
 
 

21. Pythium debaryanum is the causative agent of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

26. Fern prothallus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

30. Fertility of the soil is increased by:

 
 
 
 

31. Germination of the seed of Pinus is :

 
 
 
 

32. The term stele was given by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

35. The fungi are usually:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

40. Centric discoid form of diatom is:

 
 
 
 

41. Vegetative reproduction in Cycas is by means of :

 
 
 
 

42. Ovary is absent in:

 
 
 
 

43. Winged seeds are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

46. Azolla growing in paddy fields helps in:

 
 
 
 

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

 
 
 
 

48. E coli is a:

 
 
 
 

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

 
 
 
 

50. Wine turns sour because of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

53. Fern prothallus produces:

 
 
 
 

54. The smallest unit of classification is:

 
 
 
 

55. Which of the following are included in Tracheophyta?

 
 
 
 

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

 
 
 
 

57. Bacteria are found everywhere, except:

 
 
 
 

58. Amoeba is a member of the phylum:

 
 
 
 

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

 
 
 
 

60. Sleeping sickness disease in man is caused by:

 
 
 
 

61. Funaria is a Bryophyta because :

 
 
 
 

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

 
 
 
 

63. Mycoplasma is different from bacteria due to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

67. Halophiles are the bacteria that require for growth:

 
 
 
 

68. Nitrogen-fixing bacteria may be located:

 
 
 
 

69. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

71. Methanogens belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

77. Ulothrix and Spirogyra are filamentous and :

 
 
 
 

78. Clostridium can:

 
 
 
 

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

 
 
 
 

80. What is special feature of fern archegonia?

 
 
 
 

81. NBG of Lucknow is now named as:

 
 
 
 

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

 
 
 
 

83. Oswald Tippo’s classification is:

 
 
 
 

84. Who among the following discovered virus?

 
 
 
 

85. Most primitive kind of flower is represented by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

88. Maximum diversity of life forms occurs in :

 
 
 
 

89. The spermatozoids of Cycas are :

 
 
 
 

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

 
 
 
 

91. Among the algae kelps are :

 
 
 
 

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

 
 
 
 

93. Extremely reduced gametophyte in plant kingdom is:

 
 
 
 

94. The vascular bundles of Cycas stem are :

 
 
 
 

95. Protistan algae obtain their food as:

 
 
 
 

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

 
 
 
 

97. Some bacteria cannot be killed easily because of:

 
 
 
 

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

 
 
 
 

99. Early blight of potato is caused by:

 
 
 
 

100. Pinus gerardiana is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

103. Number of capsomeres forming capsid of TMV is:

 
 
 
 

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

 
 
 
 

105. Smut of maize is caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

108. The fern plant is:

 
 
 
 

109. In moss, sporogenous tissue arises from:

 
 
 
 

110. 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?

 
 
 
 

111. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

114. The microsporophylls on the cone of Cycas are :

 
 
 
 

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

 
 
 
 

116. What is absent in Deuteromycetes?

 
 
 
 

117. Pasteur is famous for his:

 
 
 
 

118. The spur of Pinus roxburghii has :

 
 
 
 

119. Green plants are classified as :

 
 
 
 

120. Helminthosporium oryzae was the cause of disaster :

 
 
 
 

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

 
 
 
 

122. The largest alga is:

 
 
 
 

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

 
 
 
 

124. The group algae possesses representatives belonging to kingdom:

 
 
 
 

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

 
 
 
 

126. The most important property of yeast is:

 
 
 
 

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

 
 
 
 

128. Oswald Tippo’s classification was based on :

 
 
 
 

129. Soil fertility is lost by the activities of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

133. Proembryo in Pinus is :

 
 
 
 

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

 
 
 
 

135. The fungi are mostly:

 
 
 
 

136. Cyanophage is a virus that attacks:

 
 
 
 

137. The photosynthetic protists are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

141. Asexual reproductive body of Volvox is called:

 
 
 
 

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

 
 
 
 

143. The middle sterile part of capsule is called:

 
 
 
 

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

 
 
 
 

145. The tallest moss in the world is :

 
 
 
 

146. Botulinum toxin effects:

 
 
 
 

147. Some biologists have used the term Mycetozoa for:

 
 
 
 

148. 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:

 
 
 
 

149. The sporangia of Selaginella are attached:

 
 
 
 

150. Meristele of fern is:

 
 
 
 

151. The fungi used as food are:

 
 
 
 

152. To which class Riccia belongs :

 
 
 
 

153. Pteridophyta are also called:

 
 
 
 

154. What are plasmids?

 
 
 
 

155. Lichens reproduce by :

 
 
 
 

156. Protists which are diploid reproduce sexually by:

 
 
 
 

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

 
 
 
 

158. 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?

 
 
 
 

159. Cycas is similar to a mustard plant :

 
 
 
 

160. Cycas is :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

163. The DNA of E coli is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

166. Mycoplasma are sensitive to:

 
 
 
 

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

 
 
 
 

168. Funaria is :

 
 
 
 

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

 
 
 
 

170. John Hutchinson divided dicots into two divisions:

 
 
 
 

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

 
 
 
 

172. What are Cyanobacteria?

 
 
 
 

173. Commonest mode of asexual reproduction in bacteria is:

 
 
 
 

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

 
 
 
 

175. The role of meiosis is for:

 
 
 
 

176. The plants of Funaria grow :

 
 
 
 

177. Virus and bacteriophage are made-up of:

 
 
 
 

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

 
 
 
 

179. Antibiotics cure the disease by:

 
 
 
 

180. The largest known bacterium is:

 
 
 
 

181. Which of the following shows heterotrichous habit?

 
 
 
 

182. The zygospore in Rhizopus on germination forms:

 
 
 
 

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

 
 
 
 

184. Discovery of penicillin was based on:

 
 
 
 

185. Small epidermal swellings due to infection are called :

 
 
 
 

186. An Hfr bacterium is one that contains:

 
 
 
 

187. Which is a fungicide?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

190. Bentham and Hooker placed gymnosperms:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

195. Chemoautotrophic nitrifying bacteria are:

 
 
 
 

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

 
 
 
 

197. Vascular cryptogam is the term used for :

 
 
 
 

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

 
 
 
 

199.

200. Sexual reproduction of lichen is due to :

 
 
 
 

201. Endemic plants are characterised by their:

 
 
 
 

202. The root nodules of leguminous plants contain:

 
 
 
 

203. Mycoplasma are:

 
 
 
 

204. The mode of nutrition of bacteria is usually:

 
 
 
 

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

 
 
 
 

206. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

211. Late blight of potato is caused by:

 
 
 
 

212. Bacteriovirdin pigments are found in which bacteria:

 
 
 
 

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

 
 
 
 

214. Photoautotrophic bacteria have:

 
 
 
 

215. In Selaginella, the microsporangia are:

 
 
 
 

216. Most primitive embryophytes are placed in :

 
 
 
 

217. Yeast grows more rapidly in:

 
 
 
 

218. TMV was isolated in crystalline form by:

 
 
 
 

219. Ovary is absent in :

 
 
 
 

220. The upper region of moss capsule is :

 
 
 
 

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

 
 
 
 

222. In moss, conducting tissue is made up of

 
 
 
 

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

 
 
 
 

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

 
 
 
 

225. Lichens are the indicator of pollution :

 
 
 
 

226. Which group of algae have an incipient nucleus?

 
 
 
 

227. Which of the following are absent in Mycoplasma?

 
 
 
 

228. Black rust of wheat is caused by:

 
 
 
 

229. Bryophyta have a special character from other plants:

 
 
 
 

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

 
 
 
 

231. Cellular slime mold is:

 
 
 
 

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

 
 
 
 

233. All algae have:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

238. The sporophyte of Riccia is :

 
 
 
 

239. Which of the following is true for viruses?

 
 
 
 

240. Which of the following is a parasitic algae?

 
 
 
 

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

 
 
 
 

242. Selaginella differs from Moss in having:

 
 
 
 

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

 
 
 
 

244. Enzymes are absent in:

 
 
 
 

245. Spermatophyta are characterized by producing:

 
 
 
 

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

 
 
 
 

247. Funaria are commonly found :

 
 
 
 

248. Select the wrong statement:

 
 
 
 

249. Redness of red sea is due to :

 
 
 
 

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

 
 
 
 

251. Most primitive embryophytes are placed in:

 
 
 
 

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

 
 
 
 

253. The archegonia in Selaginella develop on:

 
 
 
 

254. Which of the following statement is correct?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

258. The ascus of yeast contains:

 
 
 
 

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

 
 
 
 

260. Gram stain is used to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

265. Cocci types of bacteria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

269. Pinus microsporophyll bears:

 
 
 
 

270. attract the antherozoids of Funaria towards their archegonium:

 
 
 
 

271. Absorptive nutrition is:

 
 
 
 

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

 
 
 
 

273. Most of the lichens are composed of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

276. Fairy ring is the name given to:

 
 
 
 

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

 
 
 
 

278. Isomorphic type alternation of generation is found in:

 
 
 
 

279. Cell walls of Gram-positive bacteria contain:

 
 
 
 

280. What is the role of nitrifying bacteria?

 
 
 
 

281. To which country Antony van Leeuwenhoek belong?

 
 
 
 

282. The antherozoids of Funaria are :

 
 
 
 

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

 
 
 
 

284. The rhizoids of Funaria are :

 
 
 
 

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

 
 
 
 

286. Reserve food in Euglena is:

 
 
 
 

287. The flagella of Chlamydomonas are:

 
 
 
 

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

 
 
 
 

289. Aflatoxin is produced as a product in :

 
 
 
 

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

 
 
 
 

291. Which of the following applies to Selaginella?

 
 
 
 

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

 
 
 
 

293. In Pteris, the roots are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

296. Who discovered heterothallism in fungi?

 
 
 
 

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

 
 
 
 

298. The lambda phase is a:

 
 
 
 

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

 
 
 
 

300. How is moss different from fern?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

303. Ginkgo biloba is a:

 
 
 
 

304. Protozoans are considered animals because these are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

308. Streptomyces falls under:

 
 
 
 

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. Embryophyta includes :

 
 
 
 

311. Pseudomycelium is found in:

 
 
 
 

312. Gymnosperms could also be called as:

 
 
 
 

313. Coenogamete is found in:

 
 
 
 

314. The gametophyte of fern bears:

 
 
 
 

315. Viruses have:

 
 
 
 

316. Linnaeus is credited with introducing:

 
 
 
 

317. Some diseases caused by bacteria are:

 
 
 
 

318. Pollination in Cycas takes place by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

321. The development of Selaginella embryo is:

 
 
 
 

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

 
 
 
 

323. Who discovered streptomycin?

 
 
 
 

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

 
 
 
 

325. Most appropriate word for protozoans is:

 
 
 
 

326. ‘Snakes of Plant Kingdom’ is :

 
 
 
 

327. Bryophyta have been placed in cryptogams because:

 
 
 
 

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

 
 
 
 

329.

 

330. Smallpox is caused by:

 
 
 
 

331. Which is not found in bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

334. The source of litmus is :

 
 
 
 

335. Spores of which plants have chloroplast:

 
 
 
 

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

 
 
 
 

337. Which of the following converts CO₂ into carbohydrates?

 
 
 
 

338. Nannandria are:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

341. Which is the nuclear material in bacteria?

 
 
 
 

342. The male gametes of Pinus are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

347. Mostly type of zygospore in Ulothrix is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

352. Which organisms are the oldest life forms?

 
 
 
 

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

 
 
 
 

354. Zoogametes are not found in:

 
 
 
 

355. Chemosynthetic bacteria are:

 
 
 
 

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

 
 
 
 

357. Iodine is obtained from:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

360. Quarantine regulations are concerned with:

 
 
 
 

361. Cleavage polyembryony is found in :

 
 
 
 

362. The fungi that grow on wood are called:

 
 
 
 

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

 
 
 
 

364. In Cycas microsporangia are borne on:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

367. Photosynthetic bacteria have:

 
 
 
 

368. Reproduction in Cycas takes place by :

 
 
 
 

369. The sporangiophores in Rhizopus are:

 
 
 
 

370. Climbers are found in genus:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

373. All protozoans possess:

 
 
 
 

374. Ulothrix and Spirogyra reproduce vegetatively by :

 
 
 
 

375. Cycas revoluta is widely grown as :

 
 
 
 

376. Infective part of virus was discovered by:

 
 
 
 

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

 
 
 
 

378. Bacteria are considered to be plants because they:

 
 
 
 

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

 
 
 
 

380. The prothallus of fern represents the plant:

 
 
 
 

381. How a fern differs from a moss?

 
 
 
 

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

 
 
 
 

383. Hormogonia are the vegetative reproductive structures of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

387. The antibiotic is obtained from:

 
 
 
 

388. The similarity between cyanobacteria and bacteria:

 
 
 
 

389. Azotobacter and Beijerinckia are the examples of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

392. 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:

 
 
 
 

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

 
 
 
 

394. Cycas plant in appearance resembles :

 
 
 
 

395. Which of the following have algal zone?

 
 
 
 

396. Which among the following is a shrub?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

401. In a bacteriophage, DNA is present in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

405. Acetobacter is useful in:

 
 
 
 

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

 
 
 
 

407. Viruses are considered to be:

 
 
 
 

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

 
 
 
 

409. Fruits are not found in:

 
 
 
 

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

 
 
 
 

411. Mycoplasma was discovered by:

 
 
 
 

412. Most resistant spore in bacteria is:

 
 
 
 

413. Helotism word is used for the symbiosis between :

 
 
 
 

414. Which of the following statements is not correct?

 
 
 
 

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

 
 
 
 

416. Gametophyte is the main plant body in :

 
 
 
 

417. Circular DNA is seen in:

 
 
 
 

418. Which of the following is a heterosporous pteridophyte?

 
 
 
 

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

 
 
 
 

420. In Herpes virus DNA is:

 
 
 
 

421. Which fixes atmospheric nitrogen?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

424. Bacteriophages have been used as:

 
 
 
 

425.

426. ‘Diatomaceous Earth’ is deposition of:

 
 
 
 

427. Parmelia belongs to :

 
 
 
 

428. Pinus is:

 
 
 
 

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

 
 
 
 

430. LSD is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

434. Why is Cycas called a living fossil?

 
 
 
 

435. Milk is converted to curd by:

 
 
 
 

436. The ferns are usually found:

 
 
 
 

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

 
 
 
 

438. Detailed study of bacteriophage was made by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

441. Majority of lichens are :

 
 
 
 

442. Funaria is :

 
 
 
 

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

 
 
 
 

444. Ectocarpus produces:

 
 
 
 

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

 
 
 
 

446. Penicillin was discovered by:

 
 
 
 

447. Which of the following is a monocot?

 
 
 
 

448. Funaria can be differentiated from Cycas :

 
 
 
 

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

 
 
 
 

450. Viroids have:

 
 
 
 

451. Which of the following are included in Tracheophyta?

 
 
 
 

452. Black rust of wheat is caused by:

 
 
 
 

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

 
 
 
 

454. Diploxylic vascular bundles are found in:

 
 
 
 

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

 
 
 
 

456. Rhizophore of Selaginella is:

 
 
 
 

457. Male gametophyte of Selaginella is found:

 
 
 
 

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

 
 
 
 

459. Heterospory and ligulate leaves are a feature of:

 
 
 
 

460. Which of the following have a prokaryotic cell?

 
 
 
 

461. Saccharomyces is used in:

 
 
 
 

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

 
 
 
 

463. Lichens are ecologically important because :

 
 
 
 

464. Triple antigen injection or vaccine are for:

 
 
 
 

465. Photosynthetic protists contribute what percentage of global photosynthesis:

 
 
 
 

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

 
 
 
 

467. Interferon is a:

 
 
 
 

468. Lichen show :

 
 
 
 

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

 
 
 
 

470. 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:

 
 
 
 

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

 
 
 
 

472. All archaebacteria lack:

 
 
 
 

473. Penicillin is obtained from:

 
 
 
 

474. Which is the correct statement about Selaginella?

 
 
 
 

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

 
 
 
 

476. Plasmids are:

 
 
 
 

477. Iodine is obtained from :

 
 
 
 

478. Downy mildew disease is caused by :

 
 
 
 

479. The central part of Funaria axis is :

 
 
 
 

480. Fruiting body of lichens is :

 
 
 
 

481. Chief constituents of bordeaux mixture are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

484. What is mycorrhiza?

 
 
 
 

485. Red rot of sugarcane is caused by :

 
 
 
 

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

 
 
 
 

487. Club moss is the common name of :

 
 
 
 

488. Rhizopus and yeast are usually:

 
 
 
 

489. In moss, stomata are found:

 
 
 
 

490. In moss, sporophyte is formed on:

 
 
 
 

491. Pollination in Pinus is :

 
 
 
 

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

 
 
 
 

493. Which part of Riccia bears nurse cells?

 
 
 
 

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

 
 
 
 

495. The disease symptom necrosis refers to :

 
 
 
 

496. The prothallus of fern is:

 
 
 
 

497. Mycoplasmas are not viruses in nature because:

 
 
 
 

498. In Cycas:

 
 
 
 

499. Indusium in Dryopteris is:

 
 
 
 

500. Winged pollen grains are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

505. Which of the following lichens is harmful?

 
 
 
 

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

 
 
 
 

507. Which is a tautonym?

 
 
 
 

508. Pasteurized milk is:

 
 
 
 

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

 
 
 
 

510. Facultative saprophyte is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

513. The leaf of Cycas shows:

 
 
 
 

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

 
 
 
 

515. The sporophyte of Riccia is represented by :

 
 
 
 

516. Embryo formation is not known in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

519. The chief characteristic of bryophyta is that :

 
 
 
 

520. White rust of crucifers is caused by:

 
 
 
 

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

 
 
 
 

522. Rhizoids of Riccia are :

 
 
 
 

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

 
 
 
 

524. Ethylene oxide is widely used to:

 
 
 
 

525. One of the distinctive feature of Spirogyra is :

 
 
 
 

526. The roots of Cycas are :

 
 
 
 

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

 
 
 
 

528. Mycoplasma contains:

 
 
 
 

529. Sexual reproduction in Rhizopus is by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

535. Most of the algae are :

 
 
 
 

536. The mycelium of Rhizopus is:

 
 
 
 

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

 
 
 
 

538. Who named prion?

 
 
 
 

539. The two conjugating gametangia of Rhizopus are:

 
 
 
 

540. Amphiphloeic siphonostele develops in rhizome of:

 
 
 
 

541. The smallest bacterium is:

 
 
 
 

542. Rejuvenescent cells (auxospores) occur in:

 
 
 
 

543. Desired type of Cycas can be grown by:

 
 
 
 

544. Little leaf disease of Brinjal is caused by:

 
 
 
 

545. Aflatoxin is produced by:

 
 
 
 

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

 
 
 
 

547. Heterosporous pteridophytes always form:

 
 
 
 

548. Fruits are not found in Cycas because:

 
 
 
 

549. Cryptogams include :

 
 
 
 

550. Woody climbers are known as :

 
 
 
 

551. Fruits are not found in :

 
 
 
 

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

 
 
 
 

553. Select the correct statement: (NEET 2016)

 
 
 
 

554. Lichens form the first community in

 
 
 
 

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

 
 
 
 

556. A gill of Agaricus:

 
 
 
 

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

 
 
 
 

558. Yeast is a source of:

 
 
 
 

559. In nitrification, Nitrosomonas bacteria converts:

 
 
 
 

560. Which of the following is true for Selaginella?

 
 
 
 

561. Who discovered cyanophages?

 
 
 
 

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

 
 
 
 

563. Sporophyte of Funaria is :

 
 
 
 

564. Seeds are characteristically found in:

 
 
 
 

565. Multicellular and jacketed sex organs are found in :

 
 
 
 

566. Black rust of wheat is caused by:

 
 
 
 

567. Generic name of mango is:

 
 
 
 

568. Sometimes the bacterial cell is enclosed in:

 
 
 
 

569. Each chloroplast in Spirogyra bears :

 
 
 
 

570. Leprosy is caused by:

 
 
 
 

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

 
 
 
 

572. Enteric bacteria are those bacteria that live:

 
 
 
 

573. Unicellular eukaryotic organisms are placed in the kingdom:

 
 
 
 

574. Germ theory of disease was proposed by:

 
 
 
 

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

 
 
 
 

576. Citrus canker is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

579. Saccharomyces ludwigii ascus produces:

 
 
 
 

580. Fern plants are:

 
 
 
 

581. Water bloom is generally caused by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

584. Rice, pea, potato are :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

588. Lichens are pioneers of vegetation in a :

 
 
 
 

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

 
 
 
 

590. Which bacteria convert nitrate into nitrogen?

 
 
 
 

591. Meiosis in Ulothrix takes place:

 
 
 
 

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

 
 
 
 

593. Bacteria were first discovered by:

 
 
 
 

594. Heterocysts are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

597. The sori in Dryopteris are found on:

 
 
 
 

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

 
 
 
 

599. Placenta in fern is:

 
 
 
 

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

 
 
 
 

601. Select the wrong statement:

 
 
 
 

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

 
 
 
 

603. An alga which is rich in proteins:

 
 
 
 

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

 
 
 
 

605. Cycas is:

 
 
 
 

606. Metulae are found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

610. Antibiotic has been extracted from :

 
 
 
 

611. Which is absent from the xylem of Cycas?

 
 
 
 

612. Ovules are not found enclosed in ovary in :

 
 
 
 

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

 
 
 
 

614. Cyathia is characterized by:

 
 
 
 

615. The development of sporangium in Selaginella is:

 
 
 
 

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

 
 
 
 

617. Which lichen is called Reindeer moss?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

620. Standard size of a herbarium sheet is:

 
 
 
 

621. Yeast belongs to class:

 
 
 
 

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

 
 
 
 

623. Agar-agar is obtained from:

 
 
 
 

624. The leaves of Funaria are :

 
 
 
 

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

 
 
 
 

626. Usually, bacteria reproduce by:

 
 
 
 

627. Heterotrichous habit means :

 
 
 
 

628. Photosynthetic protists belong to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

631. Bacteria are placed under:

 
 
 
 

632. What is streptomycin?

 
 
 
 

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

 
 
 
 

634. The teeth of peristome of Funaria are :

 
 
 
 

635. Late blight of potato is caused by :

 
 
 
 

636. The genetic material of poxvirus is:

 
 
 
 

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

 
 
 
 

638. Which condition is found in Cycas?

 
 
 
 

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

 
 
 
 

640. Botulism is a:

 
 
 
 

641. Lichens show :

 
 
 
 

642. Pteridophytes are also known as :

 
 
 
 

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

 
 
 
 

644. Viruses are commonly transmitted in plants through:

 
 
 
 

645. The most primitive vascular plants is:

 
 
 
 

646. The gametophyte of fern is as:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

649. Pneumonia is caused by:

 
 
 
 

650. The young leaves of Cycas have :

 
 
 
 

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

 
 
 
 

652. The chloroplast in Ulothrix is :

 
 
 
 

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

 
 
 
 

654. What is a vector?

 
 
 
 

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

 
 
 
 

656. Saccharomyces is well known for:

 
 
 
 

657. Seeds are characteristically found in :

 
 
 
 

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

 
 
 
 

659. Facultative parasite is:

 
 
 
 

660. Disease resistant plant varieties can be produced by :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

663. Pythium debaryanum is the causative agent of:

 
 
 
 

664. Synzoospore is produced in:

 
 
 
 

665. Special feature of pollen grains of Pinus is :

 
 
 
 

666. Heterospory is the production of:

 
 
 
 

667. Reproduction in Rhizopus is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

671. The orders generally have the uniform endings:

 
 
 
 

672. The nucleus of bacteria is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

677. In Funaria, calyptra is derived from :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

680. Acellular slime mold is/are:

 
 
 
 

681. Pasteurization of milk involves heating for:

 
 
 
 

682. Azolla and Salvinia both are:

 
 
 
 

683. Most primitive group of vascular plants are:

 
 
 
 

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

 
 
 
 

685. Simple polyembryony is found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

689.

690. The chromosomal number in:

 
 
 
 

691. The zoospores of Ulothrix are :

 
 
 
 

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

 
 
 
 

693. Banana bunchy top is caused by :

 
 
 
 

694. Which of the following is sago palm?

 
 
 
 

695. The leafy fern plant represents the:

 
 
 
 

696. Vascular cryptogams is the term used for:

 
 
 
 

697. Bacteria differ from viruses in being sensitive to:

 
 
 
 

698. Longest known virus is:

 
 
 
 

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

 
 
 
 

700. In moss, reduction division occurs in :

 
 
 
 

701. 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:

 
 
 
 

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

 
 
 
 

703. Cap cells are found in the filament of:

 
 
 
 

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

 
 
 
 

705. 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:

 
 
 
 

706. Vascular tissue is found in :

 
 
 
 

707. Roots are absent in :

 
 
 
 

708. The Rhizopus gametes are formed in:

 
 
 
 

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

 
 
 
 

710. In Cycas which structure is equivalent to stamen?

 
 
 
 

711. The megaspore of Selaginella on germination produces:

 
 
 
 

712. Lichens are indicators of :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

715. Bacteria which are spherical are called:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

720. In angiosperms double fertilization represents:

 
 
 
 

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

 
 
 
 

722. ‘Snakes of Plant Kingdom’ is:

 
 
 
 

723. Classification system proposed by Linnaeus was artificial because:

 
 
 
 

724. The coralloid roots are :

 
 
 
 

725. Anoxygenic photosynthesis occurs in:

 
 
 
 

726. The truncated cone of HIV consists of:

 
 
 
 

727. Bacteriophage consists of:

 
 
 
 

728. Spirogyra represents the :

 
 
 
 

729. The tree fern is:

 
 
 
 

730. Transfusion tissue is present in the leaflet of:

 
 
 
 

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

 
 
 
 

732. Economic importance of bacteria lies in their being:

 
 
 
 

733. Ergot of rye is caused by:

 
 
 
 

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

 
 
 
 

735. Genetic material of TMV is:

 
 
 
 

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

 
 
 
 

737. Bacteria growing on synthetic medium are called:

 
 
 
 

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

 
 
 
 

739. Spirogyra differs from moss protonema in having :

 
 
 
 

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

 
 
 
 

741. Siphonogamy is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

744. Where does meiosis occur in yeast?

 
 
 
 

745. Water-borne bacterial diseases are:

 
 
 
 

746. The first to isolate a plant virus was:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

749. Water-net is the name of:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

753. Streptomycin is obtained from:

 
 
 
 

754. In dinoflagellates, the two flagella are:

 
 
 
 

755. The sporangium of fern contains nearly:

 
 
 
 

756. Common phycobiont in a lichen is :

 
 
 
 

757. The alga, Spirogyra are found in :

 
 
 
 

758. Which bacteria convert NO₃ to elemental nitrogen?

 
 
 
 

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

 
 
 
 

760. The gametophyte of moss has distinct phases :

 
 
 
 

761. Lichens reproduce by :

 
 
 
 

762. 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:

 
 
 
 

763. The chief characteristic of class Ascomycetes is:

 
 
 
 

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

 
 
 
 

765. Virion refers to:

 
 
 
 

766. In Gymnosperms endosperm is a:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

771. . Tapetum develops in:

 
 
 
 

772. Kuru, a human disease is caused by:

 
 
 
 

773. The Rhizopus is:

 
 
 
 

774. Polystelic condition is found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

777. Which have the largest antherozoid?

 
 
 
 

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

 
 
 
 

779. Psilotum is:

 
 
 
 

780. Etiology includes the study of :

 
 
 
 

781. The disease apple scab is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

784. Cycas is different from mango in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

787. The phloem of vascular system of Cycas is :

 
 
 
 

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

 
 
 
 

789. The gametophyte produced by apospory is :

 
 
 
 

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

 
 
 
 

791. Rigid cell wall and embryo formation characterise kingdom :

 
 
 
 

792. Diphtheria is caused by:

 
 
 
 

793. Nitrifying bacteria play an important role by converting:

 
 
 
 

794. The order generally ends with:

 
 
 
 

795. Which class of Protozoa includes all parasitic forms?

 
 
 
 

796. In tracheophyta:

 
 
 
 

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

 
 
 
 

798. 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?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

801. The stele of Dryopteris is a:

 
 
 
 

802. Which is not true for Escherichia coli?

 
 
 
 

803. Ovules are not found enclosed in ovary in :

 
 
 
 

804. Choose the correct statement about Spirogyra:

 
 
 
 

805. Mucilaginous canals in Cycas are found in :

 
 
 
 

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

 
 
 
 

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

 
 
 
 

808. Sporophyte of fern is:

 
 
 
 

809. Male gametes in Dryopteris are:

 
 
 
 

810. Green plants are classified as:

 
 
 
 

811. Ergot is obtained from :

 
 
 
 

812. Which is an exception to cell theory?

 
 
 
 

813. Which is an edible fungus?

 
 
 
 

814. Bivalved siliceous shell or frustule occur in:

 
 
 
 

815. Club moss and Peat moss belong to:

 
 
 
 

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

 
 
 
 

817. Typhoid in man is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

820. Pollination drop is:

 
 
 
 

821. Chemosynthetic bacteria are:

 
 
 
 

822. The sexual reproductive organs in Rhizopus are:

 
 
 
 

823. Broad spectrum antibiotic is, which:

 
 
 
 

824. True sexuality is not found in:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

827. Psychrophilic bacteria are those bacteria that grow best:

 
 
 
 

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

 
 
 
 

829. Which is a gametophytic tissue?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

833. In a diplontic life cycle:

 
 
 
 

834. Ovules are not found enclosed in ovary of:

 
 
 
 

835. The archegonia of Selaginella are differentiated by:

 
 
 
 

836. In moss, calyptra is formed from:

 
 
 
 

837. Leaf spot of groundnut is caused by :

 
 
 
 

838. Liverworts are included in :

 
 
 
 

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

 
 
 
 

840. Which one of the following is a monocot?

 
 
 
 

841. In Gymnocarpeae the fruiting body is :

 
 
 
 

842. Rhizopus belongs to:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

845. In Pteris, the archegonia are present:

 
 
 
 

846. Which statement is wrong in regard to bacteria?

 
 
 
 

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

 
 
 
 

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

 
 
 
 

849. In binomial system most of the words are:

 
 
 
 

850. The lichens growing on rocks are called :

 
 
 
 

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

 
 
 
 

852. In Cycas the fertilization is:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

855. Red rot of sugarcane is caused by:

 
 
 
 

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

 
 
 
 

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

 
 
 
 

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

 
 
 
 

859. Fern phloem lacks:

 
 
 
 

860. 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:

 
 
 
 

861. Mixed cropping helps :

 
 
 
 

862. Which of the following does not contain chlorophyll?

 
 
 
 

863. Most common type of conjugation in Spirogyra is :

 
 
 
 

864. The chloroplast of Chlamydomonas are: