Genetic engineers don't make new genes, they rearrange existing ones.

What it proves is it's not completely genetic. They have the same genes.

It was easier to ignore the consideration of paternal genes then than it would be now. We did not then consider ourselves held in the genetic trap. We thought each infant was born pure and new and holy: a gold baby, a luminous lamb. We did not know that certain forms of breast cancer were programmed and almost ineluctable, and we would not have believed you if you had told us that in our lifetime young women would be subjecting themselves to preventative mastectomies.

Natural species are the library from which genetic engineers can work.

If we look at multiple genes, the ethnic variations such as the ones we found are likely to be counterbalanced by other differences. Just because these genes are still evolving, doesn't necessarily mean they make you any smarter. We've evolved genes for selfishness, violence, cruelty û- all of which are in place because they may make survival easier.

Some of the wizards are new, while other existing ones have been refined. The whole process is far quicker than it was before.