This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
O * A = O , A blood groups of progeny.
This is because of the difference in antibody present in the serum of the blood of parents.The dominant blood group is both so both are expressed in the offspring.

1 5 1
so thn post a new question
I did!for 45 points
So have u opted for medical
got it