You cut a plasmid with a restriction enzyme that cuts it into three pieces — one fragment is 240 base pairs, one fragment is 600 base pairs, and one fragment is 1200 base pairs. You carry out electrophoresis of the digested sample. Which of the fragments will be closer to the top of the gel where the sample was inserted?
A. The 240 base pair fragment.
B. The 600 base pair fragment.
C. The 1200 base pair fragment.
D. They will all be near the top because they all have sticky ends.
E. It depends on the charge of the DNA fragment.
C. The 1200 base pair fragment.
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