Step 4
The characteristic for downwards pointing eyes ('downward') is coded for by the recessive allele a. Beirt ('2'), heterozygous for the eye allele, asks her first question: “What is the chance of having offspring with regular eyes if I choose to reproduce with Duine ('1') ?” Work out your cross on paper and give an answer to that question expressed in a percentage.
Triur ('3') has shown he does possess the downward allele. Work out the cross out on paper too and see what chances Beirt has of getting regular children with Triur.
Triur ('3') has shown he does possess the downward allele. Work out the cross out on paper too and see what chances Beirt has of getting regular children with Triur.