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.

The sex chromosomes in humans are called X and Y. Females carry two X chromosomes, while males carry one X and one Y chromosome. Cells of the body that contain two sets of chromosomes are called ...

Why is the Y chromosome disappearing? The Y chromosome has seen significant changes over the course of human evolution. "In ...

Females (XX) carry twice as many X-linked genes on their sex chromosomes as males (XY). How do cells control gene expression to manage this potentially lethal dosage problem? A prime example of 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 ...