Question

ABO blood type groups are an example of __________________. This is where there is one gene, but that one gene can have several versions.    a polygenic inheritance b dihybrid trait c incomplete dominance d multiple alleles

Answer 1

ABO blood type groups are an example of **d multiple alleles**. This refers to a situation where a single gene has more than two allelic forms, which is the case with the ABO blood types (A, B, AB, and O).