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Extra Credit (1 point all or nothing) A circular DNA plasmid was digested with the following...

Extra Credit (1 point all or nothing)

A circular DNA plasmid was digested with the following results.

Draw a map of the plasmid with all the restriction sites EcoRI: 7.0kb SalI: 7 kb HindIII: 4.0kb, 2.0kb, 1.0kbSalI + HindIII: 2.5kb, 2.0kb, 1.5kb, 1.0kb EcoRI + HindIII: 4.0kb, 2.0kb, 0.6kb, 0.4kb EcoRI + SalI: 2.9kb, 4.1kb

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Answer #1

Based on the single restriction enzyme digestion, there is one EcoR1 and SalI site each and 3 Hind III sites that divide the 7kb plasmid into 3 fragments of 4,2 and 1kb length.

Each of the EcoR1 and SalI sites is placed in any one of these 3 fragments. By seeing the double digestions, we can place the sites and then the final EcoR1 and SalI digestion gives the placement of these shoes relative to reach other (2.5 + 0.4 = 2.9)

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