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% ...

Scientists are expressing concerns about male reproductive health due to the Y chromosome's genetic material loss, potentially disappearing in 11 million years. A study revealed a sharp decline in ...

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

They juggle a system with up to 10 sex chromosomes, five Xs and five Ys in platypuses, and a slightly smaller set in echidnas. These chromosomes form a chain during sperm production, a configuration ...

X chromosome inactivation (XCI) is a mammalian dosage compensation mechanism that ensures balanced expression of X-linked genes between males and females. Research using rodent models has led to major ...

Why does it matter? According to sex researcher and expert Dr. Candice Hargons, the body count conversation has kept Black women in an unnecessary chokehold.

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 ...

X Y Chromosomes Iron Deficiency Can Cause Sex Reversal in Mouse Fetuses Pregnant mice without enough iron can have genetic male fetuses with ovaries. Posted June 16, 2025 | Reviewed by Monica ...