Answer:
separate DNA fragments according to their size.
Explanation:
Gel Electrophoresis of DNA demonstrates how DNA can be specifically cut into fragments by restriction enzymes and then can be separated by fragment size on an agarose gel.
I think the answer is either three or four I am not 100% certain but I feel like the answer for this question is going to be 3
Well what is the question or problem you don’t know how to do?