The genetic material from the donor makes up less than 1% of the baby born by using the experimental IVF technique.

A cohort of eight babies at risk of inheriting mitochondrial disease were born without complications after British scientists used a pioneering IVF technique.

In a groundbreaking UK first, eight healthy babies have been born using an IVF technique that includes DNA from three people—two parents and a female donor. The process, known as pronuclear transfer,