Nine thousand years ago, humans began domesticating cats. Nine hundred years ago, before the advent of intentional cat breeding, a genetic mutation gave rise to the first orange cat. Days ago, ...

Two-time Olympic gold medallist Caster Semenya secured a partial victory in her long legal battle over athletics sex eligibility rules on Thursday (Jul 10), as the European Court of Human Rights (ECHR ...

An allegorical and symbolic drama, X & Y opens not with a face, but a voice — the 'Mother of the Universe', instructing a ...

Imane Khelif's gold win at the Paris Olympics was shadowed by controversy after her disqualification from the World Championships due to an XY chromosome finding. The IOC cleared her based on her ...

I married a tall woman out of love, partly from genetic ambition. I figured we’d gift our kids a vertical advantage. It turns out that Mother Nature and Friar Mendel’s peas don’t translate into ...

In the African pygmy mouse Mus minutoides, females can carry three combinations of sex chromosomes (XX, XX*, and XY). We have shown that litter size at birth decreases significantly faster in ...

People who have one of several well-documented medical conditions do not have only XX or XY chromosomes, which typically correspond with female and male sexes, respectively. Those conditions ...

Role of X chromosomes in brain function and ageing Humans have two sex chromosomes—females carry two X chromosomes (XX), while males have one X and one Y chromosome (XY).

Learn about the structure and function of chromosomes, the role they play in genetics, and how they influence your health and shape medical research.

Individuals can either have sex chromosomes generally linked with being female (XX chromosomes) or usually associated with being a man (XY chromosomes), yet have reproductive organs and genitals ...