Figure 1: Overview of the imprinted domain in human 15q11–q13 and the PWS family studied. We isolated mouse oocytes following hormonal stimulation as described 19. We isolated mouse spermatozoa ...

The idea came out of a conversation Ridley had with David Haig, an evolutionary biologist who said that chromosome 15 is his favorite because it has all sorts of “mischievous genes on it.” ...