The gene for blood type O is recessive. The mother can only have the phenotype O if she has the genotype OO.
The gene for blood type B is dominant, the father has the phenotype B, but can have the genotype BB or BO.
If the father is genotype BB, the child will be B + O = BO genotype; hence B phenotype.
If the father is genotype BO, the child can be B + O = BO genotype; hence B phenotype (50% chance). Or O + O = OO genotype (O phenotype, 50% chance).
* Phenotype = displayed trait that can be found with a simple blood test.
* Genotype = genetic make up (one part from each parent), this requires a DNA test to be confirmed; however, it can sometimes be deduced by logic.
No, two O positive parents cannot have an AB positive baby. Inheritance of blood type follows specific patterns, and a child cannot have a blood type that is not possible based on the parents' blood types.
No, two O positive parents cannot have a B positive baby. Both parents would need to carry the B antigen for the child to be B positive. In this case, it is not genetically possible for the child to have a blood type different from that of the parents.
it it possible if someone from either parents' family has had it or haves it because of genes
One of the parents must be A or AB, and one must be positive.
If you're talking RH Factor (i.e., you are O-Positive, and your wife is O-Positive) then the baby will be O-Positive. If both the RH Factors are positive, then the baby will be positive.
No, two O positive parents cannot have an AB positive baby. Inheritance of blood type follows specific patterns, and a child cannot have a blood type that is not possible based on the parents' blood types.
Another has said: no chance. One of the parents must be b positive.
No, it is not possible.
No, it will not.
yes it is possible, blood groups do not work that way.
No, this can't happen, if two parents are O blood type, all kinds will be O.
A baby can be any blood type that is possible through the combination of the parents' genetic material. In this case, the baby could be blood type B positive like the parents, or it could be blood type O positive if both parents are carriers of the O blood type gene.
Yes
I'll wait for you to ask the question. Positive parents can have a negative baby as positive is dominant so they may both have one positive and one negative gene and the baby gets the two negative genes.
The blood type would be A positive.
The baby can have either O- or O+ blood type.
Yes! Yes indeed. Does the baby look like the mailman? No. O parents can't make AB babies.