Can a woman with type A blood and a man with type B blood conceive a child with type O blood? Why or why not?
No, if one parent is heterozygous and the other parent is homozygous for their blood type then they cannot have a child with type O blood.
Yes, if one parent is heterozygous and the other parent is homozygous for their blood type then they can have a child with type O blood.
Yes, if both parents are heterozygous for their blood type then they both carry a recessive O allele and can have a child with type O blood.
no, the parents are homozygous dominant for their blood types and can only pass on either an A or B allele to a child.
