You examine a gel containing the DNA profile of a mother and her biological child.Only 10 STRs were used to obtain the profile.How many bands on the gel should be identical in size between mother and child?

Question

Quizplus · Accepted Answer

Each STR marker consists of a pair of alleles, one inherited from each parent. As the child inherits one allele from each parent, the child should have one allele in common with the mother at each of the 10 loci tested. Therefore, there should be 10 bands that are identical between the mother and child on the gel.

You Examine a Gel Containing the DNA Profile of a Mother