Electrophoresis separates polypeptide chains and DNA chains
by their fragment sizes after they have been cut by restriction enzymes are
specific sites. Genetic testing involves checking genetic
disorders by evaluating DNA sequences or protein amino acid sequences. By using
restriction enzymes to cut DNA or polypeptides at specific sites, then run them
on an electrophoresis, bands will form that will help indicate whether one has an
abnormal sequence at the target site. If so, further analysis is used to
determine the sequence by use of next-generation sequencing machines
