EUGENE, Ore. - Oct. 8, 2020 - The exchange of DNA between chromosomes during the early formation of sperm and egg cells normally is limited to assure fertility. But when there are too many of these ...

When a woman becomes pregnant, the outcome of that pregnancy depends on many things — including a crucial event that happened while she was still growing inside her own mother’s womb. It depends on ...

They say opposites attract, and somehow even the wildly different X and Y chromosomes are able to pair up during sperm formation. New research shows how complex that process is, and it pinpoints a ...

The chromosome associated with male development, which is the last mysterious piece of the human genome, has been fully sequenced by a team of more than 100 researchers around the world, including ...

The human Y chromosome, responsible for determining male sex, finally has gotten an end-to-end examination. The Y chromosome is the smallest of the human chromosomes. “In the old time, people thought ...

The male Y chromosome has disappeared from a species of rat, leading scientists to investigate how humans might also lose ours in the near future. It's not all bad news for men though, as a paper ...