Which of the Following Modifications Is Most Likely to Alter

Multiple Choice

Which of the following modifications is most likely to alter the rate at which a DNA fragment moves through a gel during electrophoresis?

A) altering the nucleotide sequence of the DNA fragment without adding or removing nucleotides
B) radioactively labeling the cytosine bases within the DNA fragment
C) increasing the length of the DNA fragment
D) leaving the length of the DNA fragment the same