Human blood types are controlled by two non-Mendelian patterns of inheritance: codominance and multiple alleles.
In the ABO blood group system, there are multiple alleles (A, B, and O) that determine the blood type, and the A and B alleles exhibit codominance, meaning that both can be expressed simultaneously in individuals who are heterozygous for these alleles.
Therefore, the correct response is:
codominance and multiple alleles.