Blood Multiple Alleles

Front

What are multiple alleles?

Back

Multiple alleles refer to the presence of more than two alleles for a genetic trait within a population. For example, the ABO blood group system has three alleles: A, B, and O.

Front

What is the genotype for type A blood?

Back

The genotype for type A blood can be either AA (homozygous) or AO (heterozygous).

Front

What is the genotype for type B blood?

Back

The genotype for type B blood can be either BB (homozygous) or BO (heterozygous).

Front

What is the genotype for type AB blood?

Back

The genotype for type AB blood is AB (heterozygous).

Front

What is the genotype for type O blood?

Back

The genotype for type O blood is OO (homozygous).

Front

What is codominance?

Back

Codominance is a form of inheritance where both alleles in a heterozygote are fully expressed, resulting in a phenotype that is neither dominant nor recessive. In blood types, both A and B alleles are expressed in type AB blood.

Front

What is the universal donor blood type?

Back

The universal donor blood type is O, as it has no A or B antigens on the red blood cells, making it safe for transfusions to any blood type.

Front

What is the universal recipient blood type?

Back

The universal recipient blood type is AB, as individuals with this blood type can receive blood from any other type without an immune reaction.

Front

If a father is AA and a mother is AB, what is the probability for a child with AB blood?

Back

50%.

Front

If one parent has type AB blood and the other parent has type O, what is the percentage chance that they will have a child with type AB blood?

Back

0%.