title: Heteromorphism of chromosome 1, 9 and 16 homologues in high- and medium-longevity level regions.
abstract: Regional and age-related peculiarities of chromosomal polymorphism are established as a result of studies in C-band heteromorphism of chromosomes 1, 9 and 16 in the long-lived subjects, their relatives and population groups of the Abkhazian and Ukrainian regions. Heteromorphism frequencies of chromosomes 1 and 9 homologues are high in the Abkhazian as compared with the Ukrainian regions. Age-related differences as to the degree of expression of chromosome 9 C-band heteromorphism found are as follows: in the Abkhazian region the frequency of variants with a high degree of heteromorphism increases with age, while in the Ukrainian region, with a low degree of heteromorphism, it decreases.
authors.affiliation: Institute of Gerontology AMS U.S.S.R., Vyshgorodskaya 67, 252655, Kiev 114, USSR.
authors.forename: S M
authors.initials: SM
authors.lastname: Kuznetsova
authors.forename: M Y
authors.initials: MY
authors.lastname: Zaritskaya