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There are three alleles for blood type:

IA=Blood type A

IB=Blood type B

i=Blood type O

The alleles for blood type A and B are codominant so when someone contains the IA

and IB alleles, their blood type is AB.

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15y ago

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Related Questions

How many alleles control blood type in humans?

2


What are 3 blood alleles?

Three common blood alleles are A, B, and O. A person's blood type is determined by the combination of these alleles. People with type A blood have A alleles, people with type B have B alleles, people with type AB have both A and B alleles, and people with type O have neither A nor B alleles.


Blood type in humans is controlled by which alleles?

Human blood type is determined by codominant alleles.


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.


Is ABO blood group determined by multiple alleles?

Yes, the ABO blood group system is determined by multiple alleles. There are three main alleles involved in the ABO blood group system: A, B, and O. These alleles determine the presence or absence of specific antigens on red blood cells, which results in the different blood types (A, B, AB, or O).


An example of multiple alleles?

Blood type.


Blood type is an example of what?

mulitple alleles


What type of alleles are there?

Some types of alleles are: blood type, hair color, hair type, eye color, etc.


What is a gene with two different alleles?

An example of a gene with two different alleles is the gene for human blood type, which can have alleles for blood type A, B, or O. Each person inherits one allele from each parent to determine their blood type.


What is the a blood type for alleles?

Blood type is determined by the presence of specific alleles for the ABO blood group system. There are three main alleles: A, B, and O. The A and B alleles are co-dominant, meaning that if both are present (genotype AB), both antigens are expressed on the red blood cells. The O allele is recessive, so an individual must have two O alleles (genotype OO) to express the O blood type.


What is an example of multiple alleles?

An example of multiple alleles is the ABO blood system in humans, where the gene for blood type has three alleles: A, B, and O. Each person inherits two of these alleles, resulting in four possible blood types: A, B, AB, and O.


What determines the blood type of a new born?

The alleles of the parents determine the blood type of the new born baby. If you do not know what alleles are they are different types of one gene. In the case of blood each person has two alleles. If you have type A you are two options of alleles: IaIa and IaIo If you are type B: IbIb and IbIo If you are type AB: IaIb If you are type O: IoIo For type A and Type B you have two options because the type O is recessive and can only be a full type by itself. You can predict what type of blood your child will have by making a punit square (a little chart multiplying both sets of alleles) of the two parents blood types.