1.0Glossaryhttps://www.healthbenefitstimes.com/glossaryGlossaryhttps://www.healthbenefitstimes.com/glossary/author/adminglossary/X inactivation - Definition of X inactivationrich600338<blockquote class="wp-embedded-content" data-secret="z9Ym2fyhfq"><a href="https://www.healthbenefitstimes.com/glossary/x-inactivation/">X inactivation</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.healthbenefitstimes.com/glossary/x-inactivation/embed/#?secret=z9Ym2fyhfq" width="600" height="338" title="“X inactivation” — Glossary" data-secret="z9Ym2fyhfq" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script>
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The silencing of the genes on one of a woman’s paired X chromosomes, allowing the other chromosome’s genes to be expressed phenotypically. The process is not universal but affects 75% or more of the genes on the chromosome. Genes that are found near the short end of the chromosome are more likely than the rest to be expressed phenotypically, i.e., to escape inactivation