Today we mashup the science of genetics with the world of Harry Potter to get a better handle on how genetics works, and to find out what the odds are when it comes to getting a Hogwarts invite. (We can dream, right?) Dr. Tina Saey, who covers the molecular biology beat at Science News, helps us understand how to make a wizard with a little genetics 101. And Dr. Julian Knight, Professor of genomic medicine at the Wellcome Trust Center for Human Genetics at the University of Oxford, talks about his paper that looks to genetics for the origins of...