Question

If you inherit the genotype AO for blood from your parents, what blood type do you have?

Answer 1

The blood type is A.

Explanation:

A is a dominant allele or codominant with another allele B.
O is a recessive allele of the corresponding same gene.

In presence of allele A, the glycoprotein formed on the RBC membrane is called antigen A.

Actually O seems to be the absence of a specific glycoprotein on the membrane of the red blood cell.

So AO genotype results in an A type blood group.

Before you read this answer must learn more from the following link.

https://socratic.org/questions/what-are-the-four-major-blood-groups?source=search