[Population genetic examination of the esterase D (EsD) erythrocyte isoenzyme system in the inhabitants of Szeged and its environment (South Hungary) (author's transl)].

The authors have examined 1,480 random and unrelated persons who belonged to South Hungarian (Szeged and its environment) population and 159 mother-child pairs by starch-gel electrophoresis to determine the distribution of EsD enzyme polymorphism. The distribution of phenotype was as follows: EsD 1-1 = 80.74%, EsD 2-1 = 11.97%, EsD 2-2 = 1.28%. The gene-frequency values were: EsD1 = 0.8973 and EsD2 = 0.1027. The observed values do not differ significantly from the mean values of the Central European populations. The results of the examinations on mother-child pairs confirmed the established formal genetic theory of the inheritance of EsD enzyme polymorphism.