Activity

A Genotype Compatibility Chart shows that;

AA + AA = (Excellent)
AA + AS = (Good)
AA + SS = (Fair)
AA + AC = (Good)
AS + AS = (Very Bad)
AS + SS = (Very Bad)
AS + AC =(Bad; Advice needed)
SS + SS =(Very Bad)
AC + SS =(Very Bad)
AC + AC =( Bad; Advice needed)