UK may allow 3 parent babies

Britain could become the first country in the world to allow babies to be born with three genetic parents to help stamp out serious diseases.

View all 11 updates ›

Defective DNA replaced by a healthy version

  • If the new technique gets the go-ahead only a tiny amount of DNA in a cell will be changed
  • The part that determines individual characteristics such as facial features and eye colour, will remain intact
  • But the defective DNA will be replaced by a healthy version supplied by a female donor, making them the third genetic parent

More top news