how one of the X chromosomes in female embryonic stem cells is silenced

In most mammals, females have two X chromosomes and males have one X and one Y chromosome in each of their cells. To avoid a double dose of X-linked genes in females, one of the Xs is silenced early in the developmental process. This silencing is critical, yet how it happens has been relatively mysterious. Two new studies reveal more about this silencing process and insights that could improve stem cell research.

from Top Environment News -- ScienceDaily https://ift.tt/do2ywK9