Deadly gene mutations removed from human embryos in landmark study

Groundbreaking project corrects faulty DNA linked to fatal heart condition and raises hopes for parents who risk passing on genetic diseases

Scientists have modified human embryos to remove genetic mutations that cause heart failure in otherwise healthy young people in a landmark demonstration of the controversial procedure.

It is the first time that human embryos have had their genomes edited outside China, where researchers have performed a handful of small studies to see whether the approach could prevent inherited diseases from being passed on from one generation to the next.