[Polymorphism of heterochromatin regions of chromosomes 1, 9, 16 and Y in long-lived persons and in persons of various ages from 2 areas of the Soviet Union].

Variants of the chromosome polymorphism have been studied in long-living individuals and in persons of the population group from the Abkhazian region. This study and a comparative analysis of the data obtained with the data of the analogous studies of 170 persons in the Ukraine have permitted establishing the peculiarities of the distribution of certain chromosome polymorphism variants in long-living individuals.