Medical Genetics Figure 4.22 Alleles may differ in the number of repeats at a minisatellite locus, so that cleavage on either side generates restriction fragments that differ in length. By using a minisatellite with alleles that differ between parents, the pattern of inheritance can be followed. Parents Repeat no. GGGCAGGAXG CCcGTCC TXC Parent 1 国■ Parent 2 n ProgenyMedical Genetics