Sex-biased gene expression in the body organs evolves rapidly, supporting a mosaic model of maleness and femaleness across tissues and thus challenging binary views of sex characteristics in mammals.

Biological sex is usually described in simple binary terms: male or female. This works well for germ cells (sperm versus eggs ...

Researchers reveal epigenetic memory works like a dimmer switch, enabling more cell types than previously recognized.

When cells are healthy, we don't expect them to suddenly change cell types. A skin cell on your hand won't naturally morph ...