She inherited a good set of 'genes' from her parents.
advances in the science of 'gene therapy'
the 'gene pool' of a species
(..) Pity! Why not? Well, as far as brains go, I got the lion's share. But, when it comes to brute strength... I'm afraid I'm at the shallow end of the gene pool. There's one in every family sire... Two in mine actually. And they always manage to ruin special occasions. What am I going to do with him? (..)1994 The Lion King