What is learned from the size of restriction fragments as determined by migration speed in gel electrophoresis?

Question

Quizplus · Accepted Answer

The size of restriction fragments, as determined by their migration speed in gel electrophoresis, reflects the distance between restriction enzyme recognition sites. Smaller fragments migrate faster and further than larger ones, allowing for the determination of fragment sizes and thus the distances between the sites where the enzyme cuts the DNA.

What Is Learned from the Size of Restriction Fragments as Determined