Can two people with blood type A produce offspring with type O blood?
Blood Type A is dominant to Types B and O. Blood Type B is dominant to Type O. Blood Type O is recessive. Two people with blood type A can produce offspring with type O blood, if they both have the recessive O allele. However, if you draw a punnett square, there is only a 25% chance of them having a child with type O blood. Since I cannot draw one on here I will cross multiply. AO x AO = AA, AO, AO, or OO. To answer your second question, two individuals with type O blood cannot produce offspring with type A blood. Type O blood is recessive, which means they do not have any other type of blood within their bloodstream. If you draw a punnett square, there is a 0% chance of them having a child with type A blood. Since I cannot draw one on here I will cross multiply. OO x OO = OO, OO, OO, OO. Hope this helps!
