Britain is set to become the first country to have three parent babies! It's all to do with genetically modifying an embryo to prevent certain inherited diseases. But as with many scientific advances folks like us are left worrying about the scientific and ethical implications. So we asked the molecular biologist professor Denis Alexander to send in a reflection to explain all (which he does, in a professory type of way...)

“If we really love our neighbour – if we really love these parents who’ve already had a child with a devastating mitochondrial disease – then I think love certainly shows us that we should do all that we can in our power to help those parents to have a child who’s genetically almost entirely their own genes...and who can be guaranteed not to have a mitochondrial disease.” - Denis Alexander

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