Yes, that's actually referenced in the Discussion of the paper if you want to look at a mouse textbook. But while that can happen, it obviously has not in dogs

Yes, that's actually referenced in the Discussion of the paper if you want to look at a mouse textbook. But while that can happen, it obviously has not in dogs given their results. It'd be nice if it had, but it didn't. (I'm not sure why: perhaps lab mice have gone through far more generations, with much more stringent selection on overall health, and that is how much it takes to purge all the exposed bad recessives etc?)