Human MN blood types illustrate the Hardy Weinberg principle because these blood type antigens are not subject to inheritance.

MN Blood Types

A blood group system based on the presence or absence of the M and N antigens on the surface of red blood cells.

Hardy Weinberg Principle

A principle that describes how allele and genotype frequencies in a population remain constant from generation to generation in the absence of evolutionary influences.

Antigens

Substances that are recognized by the immune system and can provoke an immune response, typically proteins or polysaccharides found on pathogens.