In Gel Electrophoresis, DNA Fragments Move at Different Rates Because

Question

In gel electrophoresis, DNA fragments move at different rates because they have different
A)electrical charge densities.
B)sizes.
C)base sequences.
D)amino acid compositions.
E)overall electrical charges.

Accepted Answer

DNA fragments move at different rates primarily due to their sizes during gel electrophoresis. Smaller fragments move faster and farther than larger ones through the gel matrix.