In humans and many other animals, specific chromosomes determine sex. But how did researchers discover these so-called sex chromosomes? The Sex of Offspring Is Determined by Particular Chromosomes ...

UCSF researchers found that brain cells age more quickly when they rely solely on the X chromosome inherited from a female's ...

The X and Y chromosomes, commonly referred to as the sex chromosomes, are one such pair. They determine the biological sex, reproductive organs, and sexual characteristics that develop in a person.

Figure 1 provides an idea of why this partner chromosome may have been overlooked by researchers prior to Wilson. (In this image, the "X" chromosome is on the left, and its small partner is to the ...

The X contains more genes related to brain function than does any other chromosome. “The X chromosome may be a treasure trove ...

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 X chromosome passed from mom to ...