In Gel Electrophoresis of DNA,fragments Move at Different Rates Because

Question

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

Accepted Answer

The rate at which DNA fragments move in gel electrophoresis depends on their size. Smaller fragments move more easily and quickly through the gel, while larger fragments move more slowly. Charge density, base sequence, amino acid composition, and electrical strength do not significantly affect the rate at which DNA fragments move in gel electrophoresis.