Summary
An X;9;22 translocation was detected in bone marrow cells of a female patient with blastic crisis of CML. A dynamic study following 5-BrdU treatment showed that the inactive late-replicating X chromosome was the normal one. This pattern of X-chromosome replication appears to be superimposable on the most usual model found in congenital X/autosome translocations.
It is suggested that preferential autosome translocation onto the active X chromosome could be the general rule in acquired X/autosome translocations associated with long survival.
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Dallapiccola, B., Alimena, G. Inactive normal X in a female leukaemic patient with an acquired X/autosome translocation. Hum Genet 48, 169–177 (1979). https://doi.org/10.1007/BF00286900
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DOI: https://doi.org/10.1007/BF00286900