Question

A gel contains two bands from a single STR region on chromosome 5 for a heterozygous mother and two different bands for a heterozygous father. How many bands should be identical in size when comparing the heterozygous mother and her biological child?

Answer 1

Answer: If a gel contains two bands from a single STR region on chromosome 5 for a heterozygous mother and two different bands for a heterozygous father.

The number of bands that would be identical in size when comparing the heterozygous mother and her biological child would be : THREE (3).