00:00:0000:00:00Jenny Kleeman investigates ‘Biotech Barbie’ Cathy Tie, the controversial entrepreneur hoping to revolutionise human reproduction by letting parents edit their embryosMeet 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.But as Jenny Kleeman tells Helen Pidd, all is not quite as it seems with Cathy Tie. Photograph: Caroll Taveras/The Guardian