[Genetic structure of an isolated group of the native population of northern Sibiria, the Nganasani (Tavgi) of the Taimyr. III. A family analysis of blood groups].

Family analysis of ABO, MNSs, Rhesus, Duffy and Kell (Kp) in 50 families of nganasans is carried out. Segregation deviations are found in those families where the variation among the children is the widest. The proportion of children from unmarried persons is found to be very small, which supports the existence of traditional monogamic breeding structure in nganasans.