Sex chromosomes are chromosomes, or packages of DNA, that are found inside the nucleus of all of your cells. There are two different kinds: X and Y, which determine whether you’re biologically male ...

In 2002, evolutionary biologist Jenny Graves shared a controversial calculation. The human Y chromosome, she wrote two years later in a commentary, "is running out of time." The male-determining sex ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. In a new study, scientists ...

Researchers have uncovered which genes on the Y chromosome regulate the development of sperm and impact fertility in male mice. This research could help us understand why some men don't produce enough ...

Discover interesting facts about how traits are passed down over generations through DNA. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. What ...

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 ...

Stress, ageing, cancer. There are still no magic solutions but one factor linking all three holds out hope. And that, says ...

The lab of developmental biologist Dr. Eric Lai has been studying evolutionary battles of the sexes in fruit flies. This colorful snapshot, courtesy of the Lai Lab, depicts sperm maturation in fruit ...

Hair genetics can come from either parent, and multiple genes can determine hair traits, such as color, texture, and growth. Genes can also affect hair loss. Although it can run in families, this is ...