Turner's syndrome with a duplication‐deficiency X chromosome derived from a maternal pericentric inversion X chromosome

Abstract
A 31 yr old woman of short stature with severe oligomenorrhea had a duplication-deficiency X chromosome, 46,X,rec(X)dup q,inv(X)(p22q11), inherited from her mother who carried a pericentric inversion X chromosome, 46,X,inv(X)(p22q11). By a combination of autoradiography and BUdR [bromodeoxyuridine] incorporation, the duplication-deficiency X chromosome was always the inactive and late replicating one. In the cultured fibroblasts with the recombinant X chromosome, some of the cells had bipartite X chromatin bodies. In the mother with inv(X), the normal and the inverted X chromosome were randomly inactivated.