We don't know exactly why men are taller than women on average, but we have some genetic clues. On average, human males tend ...

Males imprint their DNA by adding methyl modifications to it in a way that alters the activity of genes in order to promote ...

“The diploid alignment was even more dramatically divergent, showing a difference of 16.11% between humans and chimps. When sex chromosomes were analyzed, chimpanzee X chromosomes were over 20% ...

Researchers mapped Y chromosome loss across thousands of individual cells from human cancers, with disturbing results.

Proposed language would recognize two sexes in North Carolina’s rules and public policies, echoing President Donald Trump’s executive order.

But some studies can clue us in on what this potentially means for guys, too. Sex chromosomes may be a key player, says Brian Capell, MD, PhD, an assistant professor of dermatology who researches sex ...

The low iron disrupts the activation of a key gene that spurs the development of male sex organs. This causes embryos with XY chromosomes — the most common combination seen in males — to develop ...

The governing body for boxing apologized to the Algerian gold medalist after announcing a new gender eligibility policy.

Height is one of the most evident sex-based differences observed in humans, as men are on an average 13 cm (5 inches) taller than women. Sex hormones certainly play a significant role in driving ...

These findings, published in the journal PNAS, suggest that the presence of the Y chromosome in these females affects reproductive senescence and highlights the strong interactions between sex ...

Scientists at the University of Oregon uncovered a sex chromosome in the California two-spot octopus, dating back 480 million years, making it the oldest known. This discovery adds a new dimension ...

Alternatively, octopuses could use a sex determination system that only involves the Z chromosome—males have a pair, and females just have one. That's still to be determined, Coffing said.