The Y chromosome. What makes a boy a boy? In this programme we put the Y chromosome under the microscope. We find out how it transforms a female embryo into a male one. We discover what it can tell us about the differences between men and women. We speak to a teenage boy who has not just one Y chromosome but two. And we meet the scientist who turned a female mouse male.
(Photo: X and Y chromosome on a black background. Credit: Shutterstock)
Published on Friday, 22nd May 2015.
Available Podcasts from The Why Factor
We are not the BBC, we only list available podcasts. To find out more about the programme including episodes available on BBC iPlayer, go to the The Why Factor webpage.