Question

A man with blood group A married a woman with blood group B.

They have a son with ab group and a daughter with blood group

O. Write out the cross.​

Answer 1

Answer:

Thanks for the free points

Answer 2

Given information is not enough to tell us which characteristics are dominant –blood group A or O. Blood type A is always dominant in ABO blood and blood type O is always recessive. Here, the father’s blood group may be genotypically AA (homozygous) or AO (heterozygous), whereas that of mother can be OA or OO.