On What Basis Does Gel Electrophoresis Separate DNA Segments

Question

On what basis does gel electrophoresis separate DNA segments?
A) weight
B) length
C) types of nucleotides
D) complexity

Accepted Answer

Gel electrophoresis separates DNA segments based on their length. The segments are placed in a gel matrix and subjected to an electric field, causing them to move through the gel at a rate determined by their size. Smaller segments move faster and travel further through the gel than larger segments, resulting in separation based on size/length.