[Hereditary polymorphism of the secretion of ABH antigens in the Khoton population (Mongolian People's Republic)].

The secretory status of ABH antigens is studied in khotons (N = 69), inhabitants of North-West of MPR. The proportion of nonsecretory ABH antigens was 14.49%, the frequency of recessive gene being qse = 3807. The results confirm the historical evidence concerning the contribution of different peoples of Central and Middle Asia (uzbeks, uigurs) to the ethnogenesis of the khotons. The position of the khoton population on the genogeographical map of ABH secretion corresponds to that which was earlier predicted by the method of interpolation.