What types of inheritance are represented by the genetic of human blood types

Question

A. I^a abd I^b show incomplete dominance because both are partially expressed in blood type A and B

B. The human blood types are an example of polygenic traits with four possible phenotypes: A, B, AB, O.

Answer 1

Human blood types are an example of codominant inheritance.

This is an inheritance pattern in which neither genetic allele masks the other, instead both are expressed equally.