" /> X-Chromosome Inactivation - CISMeF





Preferred Label : X-Chromosome Inactivation;

NCIt synonyms : X Inactivation; X Chromosome Inactivation; X-Inactivation; Lyonization;

NCIt definition : A human early embryonic event in which in any given cell one of a female's two X chromosomes becomes inactivated and converted into a Barr body. After inactivation has occurred, all descendants of that cell have the same inactivated X chromosome. Thus, X-inactivation creates cell clones with differing effective gene content. An organism whose cells vary in effective gene content and hence in the expression of a trait, is called a genetic mosaic.;

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16/05/2024


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