Frequency of genes and heredity of AK types in the Polish population

Types of the AK groups system were determined in a sample of the Polish population numbering 660 subjects. Two phenotypes were found: AK 1-1 with a frequency of 0-933, and AK 2-1 with a frequency of 0-067. Gene frequencies were AK1 = 0-967 and AK2 = 0-033. Distribution of phenotypes in 62 families with 195 children was consistent with the hypothesis according to which heredity of AK types depends on two codominant alleles.