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X-inactivation is the coordinated silencing of nearly all genes on one of the two X chromosomes in female mammals. X-inactivation requires the cis-acting Xist gene. The highly unusual properties of Xist and the extremely long distances over which Xist acts have made it difficult to reconcile X-inactivation with other examples of gene regulation. This paper presents new findings that suggest that X-inactivation involves transvection and harnesses heterochromatin association.
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York Marahrens (1999) studied this question.
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