A recent Trump executive order defines sex based on gamete size. But the order oversimplifies genetics, hormones and reproductive biology.

But just like Mendel and his peas don’t fully explain the actual complexity of genetic inheritance, simple definitions for ...

At the International Summit on Human Genome Editing, held in March 2023 at the Francis Crick Institute in London, Japanese ...

Scientists might soon be able to create eggs and sperm from skin and blood cells. What will that mean? Humans are off limits for now, but the work does help us better understand a strange ...

In a potential breakthrough for infertility and genetic disease treatments, scientists at Kyoto University have succeeded in mass-generating precursors to sperm and eggs from human iPS cells. Two ...

According to recent reports, experts believe this technology may become a reality within the next two to ten years, ...

Trump’s recently put his ignorance of the biology of human reproduction on display with this pronouncement: “The executive order declares there are only "two sexes, male and female" and defines a ...

Technology reprograms stem cells or skin cells to act as either eggs or sperm, a technique that has been successful in mice. Scientists produced a healthy offspring from two male mice. While the ...

Similarly, a female same-sex couple could also have biological children, where one contributes eggs and the other pluripotent stem cells that end up producing sperm. Either of the two women could ...