DNA is interesting. Understatement of the year.
It's a string of chemicals using basic organic chemistry as archive for what's basically nano/quantum engineering. But it's never mass produced. At least not by default.
So how does something that is never mass produced manage to engineer artifacts over and over that achieves the same goal (walking, talking, lifting etc) without disintegrating into decoherence? Biologists think the constant hybridizing (combining two models) somehow makes the product consistent. But that explanation fails under scrutiny. There are no models in classical engineering where you "combine 2 models randomly so that they produce the consistent operating template"
What makes it robust? The ISBE.
The DNA is produced to hold an echoe of the ISBE producing it. That echo responds to ISBEs that have a similar echo.
Race is partly who you are, like it or not. Not because you are constrained to a particular body but because you like / are like a certain thing.
My supposition-
Models like progeny of Myers-Briggs will one day superimpose onto progeny of modern genetics. The sciences will converge because they must. Our classical interpretation is that genetics shape your personality... but actually your personality shapes your genes. And your relatives are partly random ISBEs pulled into the biochemical soup of your "race" - but partly because they resonate like you and the tuning forks that you are can go anywhere but perhaps cannot escape the similarities in their frequency.
They were related before birth. But genetics enhanced that relation because they wanted to. And divergence is still an option. They have no ball and chain doctrine.