Question

Is the disease represented in the pedigree chart an autosomal recessive genetic disorder or an autosomal dominant genetic disorder? Explain how you know.

Answer 1

It is an autosomal recessive genetic disorder because the affected male had a son without the disease. If the disease was a dominant genetic disease, it would be impossible to have both parents not have the gene but the son does because both parents would be rr and that cannot make a son with Rr