In cats, the fur pigmentation gene is X-linked, and depending on which copy of the X chromosome each cell chooses to leave active, either an orange or black coat color results. X inactivation only ...

Plus, the second X chromosome in female cells might explain why women tend to be more resilient to cognitive decline than men.

In a new study, scientists probed the ways in which the X chromosome may change with age and affect cognition. . | Credit: bodym via Getty Images Dormant genes on the X chromosome may reawaken in ...

But in every cell of their body, just one X chromosome is needed—so the other is randomly inactivated. Some cells use only a maternal X chromosome; others rely only on the paternal X.

In a surprise, work in mice has found that the dormant X chromosome in females can reawaken late in life and turn on genes that keep the brain healthy. UCSF researchers may have discovered how the ...

In a surprising event, a new study has revealed that the X chromosome passed down to the child from the mother might be responsible for accelerated brain ageing, potentially increasing the risk of ...

Things are changeable in the aging brain, and the X chromosome clearly can teach us what’s possible.” Dena Dubal, MD, PhD The scientists created hybrid mice from two different strains of laboratory ...

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