The same syndrome can also be caused by mutations in other genes, including the TK2 gene. (seeker.com)
The upshot, says Page, is that «if a chimp Y has a genetic variant that enhances sperm count, it will be preferentially passed on, with mutations in other genes dragged along for the ride.» (discovermagazine.com)
All of these children did not have mutations in other genes known to cause glaucoma. (sciencedaily.com)