Question

the segment of dna shown in the figure above has restriction sites i and ii, which create restriction fragments a, b, and c. which of the gels produced by electrophoresis shown below best represents the separation and identity of these fragments?

Explanation:

In gel - electrophoresis of DNA, smaller fragments move faster towards the positive electrode. Fragment C is the largest as it is not cut by either restriction site, fragment A is the smallest as it is the most cut - off piece. So, fragments should be separated with C being closest to the negative electrode and A being closest to the positive electrode.

Answer:

The gel with fragments arranged as C, B, A from the negative to the positive electrode.