No
Only if it was adopted...the only options for that child's blood type would be A or O if the biological parents are both Type A.
Yes. Both parents could be heterozygous, that is AO, and pass on the O to their child.
No. If both parents are type O, the child will also be type O.
The child's blood type is determined by his or her parents' blood types. If both parents have type A, the child can have either type A or O. If both parents have type B, the child can have either type B or O. If one parent has type A and the other parent has type B, the child can have type A, B, AB, or O, but he/she is most likely to have type AB. If both parents have type O, the child will have type O.
Yes, if both parents have the genotype AO, then the child can have the O from both parents, phenotype O
Yes
The parents must have both blood type B or blood type 0 and B.
If both parents are type O blood they will only have type O children
If they both have type A blood, they cannot have a child type B.
It must have one of the true parents blood types.
If BOTH the parents have Type O blood, then their child has a 100% chance of having Type O blood. If ONE of the parents has Type O blood, then it has a lower chance. For more information, look up "Punnett Squares"
No. One of the parents would have to be type A or AB.