Identification of a C6/G21 translocation chromosome by the Q‐M and Giemsa banding techniques in a patient with Down's syndrome, with possible assignment of Gm locus

Abstract

A family with a C/G, probably 6/21, translocation chromosome was ascertained through a case of Down's syndrome. Genetic linkage analysis yields a possibility of localization of the Gm locus on autosome 6.