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2021-05-14

What is the genotype of blood type AB?

What is the genotype of blood type AB?

Someone with blood type AB must have both the A and B alleles. The genotype must be AB. Someone with blood type O has neither the A nor the B allele. The genotype must be OO.

Could a man with type B blood and a woman with type AB blood produce a child with type O blood?

The possible genotypes of a man with blood type B are BB or BO and the genotype of a woman with blood type AB is AB. The child would receive an A allele or a B allele from the mother and a B allele or an O allele from the father. Therefore, the child could not possibly be of blood type O.

Is blood type AB heterozygous or homozygous?

Thus, if one parent is homozygous for type A blood and the other is homozygous for type B, the offspring will have a new phenotype, type AB. In people with type AB blood, both A and B proteins are expressed on the surface of red blood cells equally….Codominance.

Blood Type Related Genotype(s)
O OO

Can AB+ and O+ have a baby?

In most cases, an O parent and an AB parent will have only A or B kids. It is only very rarely that they might have an AB or an O child (see the links at the end for these exceptions). Isn’t genetics fun!

How does a child get AB blood type?

How are ABO alleles inherited by our children? Each biological parent donates one of their two ABO alleles to their child. A mother who is blood type O can only pass an O allele to her son or daughter. A father who is blood type AB could pass either an A or a B allele to his son or daughter.

What’s special about AB positive blood?

AB positive blood type is known as the “universal recipient” because AB positive patients can receive red blood cells from all blood types.

Could a man with O blood type be the father of an AB child?

An AB and O couple producing an AB child cannot be explained in terms of the usual inheritance patterns. One would not expect the cord blood result to be AB when the mother is type O, however, in very rare instances, such as the cis-AB blood type, it is possible.

Can 2 O blood types make an AB?

Keep in mind, though, that mutations are very rare. Two O parents will get an O child nearly all of the time. But it is technically possible for two O-type parents to have a child with A or B blood, and maybe even AB (although this is really unlikely).

Which parent determines a child’s blood type?

Just like eye or hair color, our blood type is inherited from our parents. Each biological parent donates one of two ABO genes to their child. The A and B genes are dominant and the O gene is recessive. For example, if an O gene is paired with an A gene, the blood type will be A.

Is O Negative a good blood type?

O negative blood can be used in transfusions for any blood type. Type O is routinely in short supply and in high demand by hospitals – both because it is the most common blood type and because type O negative blood is the universal blood type needed for emergency transfusions and for immune deficient infants.

What blood type kills babies?

Usually within hours of Rh-positive blood exposure, smaller immunoglobulin G, or IgG, antibodies are formed. IgG antibodies can cross the placenta and destroy fetal red blood cells. This causes Rh disease, which is dangerous for the fetus.