Three-parent embryos proposal seeks public comment

The UK’s Department of Health has announced a public review of draft rules that would allow scientists to create embryos using DNA from three people – a man and two women – to prevent mothers from passing on potentially fatal mitochondrial genetic diseases.

The review should be the last step before politicians consider changing existing laws that currently prevent the procedure.

The therapy, called Mitochondrial Replacement (MR), involves inserting the nuclear material of a prospective mother and father into a donor egg with the nucleus