Since blood goes by a two-gene system, yes. A-type is dominant to O-type. If the parents each have one O gene and one A gene the A will dominate but the O will still be there. There is a chance that when the genes are passed to the child, they will get a copy of each of its parents O genes.
It is impossible for two parents expressing blood types O and B to have a child expressing the blood type AB. For a person to express the blood type O they must have two type O alleles for the gene, because it is a recessive allele. Therefore they can only contribute an O allele to any offspring. Persons expressing the blood type B may be homozygous dominant for the B allele (have two B alleles) or may be heterozygous, containing one B allele and one O allele, which would not be expressed because of the B allele is dominant. Their exact genotype (BB or BO) would not be determined through simple blood typing (phenotype-or expressed blood type- is determined.) Either way, they could onlycontribute a B or O allele to any offspring. Therefore is is impossible for two individuals type O and B to produce a type AB child. Any child produced by these two would be blood type B or O if the mother is in fact BO. If a child is expressing the A antigen (A and B alleles are codominant, therefore both are expressed) along with the B antigen, the child must have inherited an A allele from one of the parents. This means that one of the parents must express the A antigen (is either type A or AB.)
We are looking for the possible blood types of a baby.
Parental information:
HOWEVER: There is more to ABO blood typing that just the ABO gene.
There is also an inhibitory gene that will change any genotype into the phenotype O.
Therefore a person with genetically AB blood can be tested as having Type O.
If either Type O parent has the inhibitory gene affecting his Type A, B or AB blood, then the baby may not be just AO or OO. It can be Type B or even, rarely, AB.
then the Type A baby is definitely possible.
Yes, I have O blood type from my father and RH factor is NEG, ONeg like my father.
Not with the male as the biological father.
No i dont think so
No.
No
Of course!
If the father has that blood type, yes.
yes they can have any type of baby blood
Possible blood types of the child with a mother who has A blood type and a father who has AB blood type are A, B, and AB. :)
The Baby Would Be Type A Blood
No, because a baby gets their blood from their father, not their mother.
The father could be AB or B.
The baby will normally be A positive.
If the father is homozygous (ii, BB): the baby will be type B. If the father is heterozygous (ii, Bi): the baby will be type B or O.
Yes.
Yes, they can.
Yes