The parents must have both blood type B or blood type 0 and B.
It must have one of the true parents blood types.
Yes. The geneotype for both parents must be AO+- for the child to be OO--
The child must have O as well.
Parents must be blood type A or O. Any other blood type will not result in a sole A type child. It might result in several other combinations though, which are not relevant to this question.
Blood type: O
No - this is not possible. The child must have one parent with an A allele in order to have type A blood. Neither of these parents have an A allele - so this is not possible.
No, two type O parents can only have type O children. See the table below from www.dna-bioscience.co.uk/did_you_know_abo.shtml If you look at the row for mother's blood type O where it intersects with the column for father's blood type O, you will see that the child's blood type must be O. For the child to be Rh+, only one of the parents has to be Rh+.
Yes, it is possible for parents with blood types O and AB to have a child with blood type O. The child would inherit an O allele from one parent and an O allele from the other parent, resulting in blood type O.
If both parents have blood type O, then the baby's blood type will also be O. Blood type O is recessive, so both parents must have two O alleles to pass on an O blood type to their child.
No. It is not possible for a child to have A if the parents are O blood type. If both parents have type O blood, then their children will also have type O blood. However, two parents with type A or type B blood (both the same or one of each) can sometimes have a child with type O blood. That is because the gene for type O blood is recessive. But they must carry the O type. However, two parents with type AB blood can have a child with type A, type B, or type AB blood, but cannot have a child with type O blood.
the child takes the A gene from one parent and B from the other. And the both of parent are supposed to be AB blood type, or one A blood type and the other B.
O- blood type is inherited when both parents pass on the O- gene to their child. This means that a person with O- blood type must have two parents who are either O- or have O- genes.