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

The X chromosome carries at least 150 genes linked to intelligence. Since the mother has two X chromosomes to pass along while the father only has one, the mother’s contribution to the child’s ...

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

New research shows that female mice expressing only a maternal X chromosome experience faster brain aging and cognitive ...

Women are born with two X chromosomes and inherit one from each parent. But in every cell of their body, just one X ...

Researchers at the Crick have uncovered which genes on the Y chromosome regulate the development of sperm and impact ...

Human biological sex is determined by the sex chromosomes X and Y. In most cases, females possess two X chromosomes, while males have one X and one Y. However, there is some evidence that the Y ...

Women are born with two X chromosomes and inherit one from each parent. But in every cell of their body, just one X ...

Once upon a time, the Y chromosome — responsible for determining male sex — was as robust as its X counterpart. Fast forward a few million years, and it’s now a slimmed-down version of its ...

The X chromosome carries at least 150 genes linked to intelligence. Since the mother has two X chromosomes to pass along while the father only has one, the mother’s contribution to the child’s ...

How do scientists find their way around a chromosome? With chromosome maps called idiograms, researchers can pinpoint the locations of genes and locate abnormal gene forms. Aa Aa Aa Most ...

Researchers have uncovered which genes on the Y chromosome regulate the development of sperm and impact fertility in male mice. This research could help us understand why some men don't produce enough ...