The amount genes that are responsible for visual differences (which make up what is perceived as race) are a fraction of 1 percent.
I've heard that 1% of DNA is what makes us different from the monkeys we evolved from..
Would make sense considering there's probably tons of old genetic stuff from millions of years of evolution.
I don't think it's worth talking in terms of races, I'm pretty sure there are genetic differences between groups of people that goes further than appearance , but how far it goes is not really worth finding out.
And as history clearly shows, nothing good can come from it.
Also, I mix up helm and ptoing all the time! Or at least I used to..