Blood type genetics

Front

What are the four main blood types in the ABO blood group system?

Back

A, B, AB, O

Front

What is the genotype for type A blood?

Back

I^AI^A or I^Ai

Front

What is the genotype for type B blood?

Back

I^BI^B or I^Bi

Front

What is the genotype for type AB blood?

Back

I^AI^B.

Front

What is the genotype for type O blood?

Back

ii

Front

Can a person with type AB blood have a parent with type O blood?

Back

No, it is genetically impossible.

Front

What is the probability of two type AB parents having a type O child?

Back

0%.

Front

If both parents are heterozygous for type A blood, what is the probability of having a type O child?

Back

25%.

Front

What is the probability of a child having type AB blood if one parent is I^AI^A and the other is I^AI^B?

Back

50%.

Front

What does it mean for a blood type to be heterozygous?

Back

It means having two different alleles for a trait, such as I^A and i for type A blood.