//Scientists have long suspected that the racial categories recognized by society are not reflected on the genetic level. But the more closely that researchers examine the human genome -- the complement of genetic material encased in the heart of almost every cell of the body -- the more most of them are convinced that the standard labels used to distinguish people by ''race'' have little or no biological meaning.
They say that while it may seem easy to tell at a glance whether a person is Caucasian, African or Asian, the ease dissolves when one probes beneath surface characteristics and scans the genome for DNA hallmarks of ''race.''
As it turns out, scientists say, the human species is so evolutionarily young, and its migratory patterns so wide, restless and rococo, that it has simply not had a chance to divide itself into separate biological groups or ''races'' in any but the most superficial ways.//
Source, interesting read :
https://www.nytimes.com/2000/08/22/science/do-races-differ-not-really-genes-show.html#:~:text=Through%20transglobal%20sampling%20of%20neutral,people%20occur%20within%20their%20local