The old beliefs about race certainly persist among the non-scientist general public. She also writes about drug companies that use assumptions of racial difference to get patents for drugs, which they then market as being especially effective for a particular race when in fact there's no basis for that claim. The DNA doesn't naturally group itself and the computer that does the grouping has to be given instructions by scientists.
Scientists weren’t the first to divide humanity along racial – and and racist – lines. But for hundreds of years, racial scientists claimed to provide proof for those racist hierarchies – and some still do.
Resources for this episode:
Fatal Invention, by Dorothy Roberts
The History of White People, by Nell Irvin Painter