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No, that's not true. If you are a Rh- mother then your immune system will become sensitized by an Rh + baby and if you were to have a second Rh+ baby without taking medication to control this then that baby would have a condition called fetal erythroblastosis.

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Does first born baby have same blood type as mother?

Not necessarily. The blood type of a first born baby can be the same as the mother's, but it can also be different if the baby inherits a different blood type allele from the father. The baby's blood type is determined by a combination of the parents' blood types.


If a woman with blood type A has a baby with blood type AB a man with blood type O be the father?

Yes, it is possible for a woman with blood type A to have a baby with blood type AB if the father has blood type O. This is because blood type O is a recessive trait, so the father can pass on the gene for blood type A and the gene for blood type B to the baby.


Can two o positives make an o negative?

Yes this is true only if both parents are heterozygous positive. This means that the parents genotypes are +- for blood type. + blood type is dominant over - blood type, so this means that one can only have negative blood type if their parents are either heterozygous or homozygous recessive. A helpful tool to finding out the probability for this question would be to use a punnett square. If you used this method you would find out that two heterozygous positive blood type parents have a 25% chance of producing offspring with negative blood type.


Why does the baby have only two alleles if the inheritance of blood type is controlled by three alleles?

Blood type inheritance is determined by three alleles (A, B, O), but an individual inherits only two alleles, one from each parent. This means a baby can have only two alleles for blood type, such as AO or BO, even though three alleles exist in the population.


If the father is blood type B and the mother is blood type A is it possible for the baby to be blood type O?

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Related Questions

Is it true that a baby will always always be born with the fathers blood type is this true?

no


What blood type can a baby have if both parents have type A blood?

If both parents have type A blood then the baby should have type A blood. or type O blood


Can a mother with AB blood type and father with A blood type have a baby with O blood type?

yes they can have any type of baby blood


For a child to have A blood type do both parents have to be A?

no, if both parents are A still there is a chance of O baby ,but for the child to have A blood type atleast one of the parents must have A or AB blood group Parents having the following blod groups may have an A baby AA and AA baby will have A blood group only AA and AO baby with A group only AO and AO baby may have A or O blood group AB and OO baby with A or B blood group AA and OO baby with A blood group only AAand AB baby with A or AB blood group AO and BO baby of A AB B or O blood group AO and AB baby of A AB or B blood group AB and AB baby having A B or AB blood group (each individual has one,two or no antigens .when no antigen it results in O blood group ,when one or two A antigens ,the person has A blood group so its not necessary that both parents of A blood group child have A blood type


A Father with A positive blood type and a mother with O positive blood type will have a baby with what blood type?

The baby can have either A positive or O positive blood type.


If a father has type A positive blood and the mother has type O positive blood what blood type will the baby have?

Well the baby will have an O positive blood type.


Can a b negative woman and o positive man have a baby?

Any one fertile man and any one fertile woman can have a baby together. Your blood type is only important for the blood type your baby will have.


Mother with Type A blood type and father with type B blood type possible to have a baby?

baby can have type A or type B or type AB blood group


What will happen to a baby when his father is blood type ab and his mother is blood type o?

If a parent's baby is having AB and O blood type, respectively, the baby's possible blood type will be A or B.


If the mom is o and the dad is a what blood type will be their baby?

The baby will either be blood type O or Type A


What would a baby's blood type be if both parents have o negative blood type?

The baby will be type O negative. It cannot be any other blood type.


If both parents have a blood type of O positive will the baby have the same blood type?

The baby can have either O- or O+ blood type.