DNA, because it has a _______ charge, moves to the _______ end of the field in gel electrophoresis; _______ DNA molecules migrate the most quickly.
A) positive; positive; smaller
B) positive; positive; larger
C) positive; negative; smaller
D) negative; positive; larger
E) negative; positive; smaller

Question

Quizplus · Accepted Answer

DNA has a negative charge due to its phosphate backbone, so it moves towards the positive end of the electric field in gel electrophoresis. Smaller DNA molecules migrate more quickly than larger ones. Therefore, choice E is the correct answer as it states that DNA has a negative charge, moves towards the positive end, and smaller DNA molecules migrate more quickly.

DNA, Because It Has a _______ Charge, Moves to the _______

DNA, Because It Has a _ Charge, Moves to the _