How to find blood type frequencies using Hardy-Weinberg equation

Rhesusnegative.net

5 years ago

p^2	=	dominant homozygous frequency (AA)
2pq	=	heterozygous frequency (Aa)
q^2	=	recessive homozygous frequency (aa)

ABO blood group system, the classification of human blood based on the inherited properties of red blood cells (erythrocytes) as determined by the presence or absence of the antigens A and B, which are carried on the surface of the red cells. Persons may thus have type A, type B, type O, or type AB blood.

The above chart shows the gene frequency of r(cde) meaning, we need to apply the Hardy-Weinberg-Equilibrium to determine the percentages of rh negatives phenotypically.