Jenny Kleeman investigates ‘Biotech Barbie’ Cathy Tie, the controversial entrepreneur hoping to revolutionise human reproduction by letting parents edit their embryos Meet Cathy Tie: serial entrepreneur, self-described “Biotech Barbie”, and the woman aiming to revolutionise reproduction by using Crispr to edit human embryos. Beneath the tech-startup polish lies a provocative mission: to take the biological lottery out of the hands of nature and place it into the hands of parents.