People with an XY chromosome combination have more physical strength (especially upper body strength) than people with an XX chromosome combination. Title IX was designed to allow people with an XX ...

Human egg cells are often prone to chromosomal errors. As women age, the error rate increases sharply—and can contribute to ...

No matter where you travel around the world, men in any given human population tend to be taller than women. Now researchers have uncovered a key genetic mechanism behind this anatomical contrast.

What was once the final frontier of the human genome -- the Y chromosome -- has just been mapped out in its entirety. Scientists used advanced sequencing technologies to read out the full DNA sequence ...

An activist says she’s learning to pee through a funnel so she can join Texas politicians when they use urinals. The stunt mocks a new bill that would define sex based on chromosomes, which critics ...