What stands out the most about this ancient cephalopod sex chromosome is how little the chromosome has changed over time.

Women are born with two X chromosomes and inherit one from each parent ... When the researchers used CRISPR gene editing ...

Females carry two X chromosomes, after inheriting one from each parent. In order to stop serious problems from arising, cells ...

Female mammals typically carry two X chromosomes — one from each parent — and a new study suggests that the maternal X is linked to faster brain aging.

The executive order’s definitions of male and female left room for interpretation contrary to the spirit of the order.

Scientists at University of Oregon discover one of the oldest known animal sex chromosomes in California two-spot octopus.

A recent study has hinted at a possible connection between the X chromosome inherited from mothers and accelerated brain ...

Researchers have identified a sex chromosome in the California two-spot octopus. This chromosome has likely been around for 480 million years, since before octopuses split apart from the nautilus on ...

New research shows that female mice expressing only a maternal X chromosome experience faster brain aging and cognitive decline compared to those expressing both maternal and paternal X chromosomes.

Researchers aim to continue studying the role of the X chromosome in brain aging, and whether it can explain people’s risk of ...

The octopus just revealed another one of its secrets: what determines its sex. University of Oregon researchers have ...