I caught most of a report on albinism of CGTNN. It showed several women in Africa and their movement to get rights and respect. As I watched I was struct by how pretty these women really were. Different and a bit strange for sure but mostly what I will call exotic especially with their blond hair. I could not help but notice just how close the facial features of these African (negro) women were to most caucasion women. I think with the right make-up they would pass for “white” almost anywhere.
I had always been skeptical about the idea that all humans originated in Africa. Seeing these women hit me with the realization that white, brown and yellow skin and other features are truly genetic. The evidence was right there on my TV. As best as I can figure out, there must be differences other than skin color that come with differences in pigmentation. In other words, the difference in the gene which impacts color carries with it differences in other physical features such as hair type and color and some facial features. I expect that mating among people of similar color and features would account for the stable populations we see today.
This understanding of an actual mechanism for development of different peoples would be interesting in and of itself, but I had also recently seen a report on CRISPR. We all have probably seen and heard about “designer babies”. The CRISPR technology seems to be the realization of designer humans. My expectation is that in the future gene editing will not be limited to embryos. If the technology is developed I expect gene editing in adults will be more in demand than we might imagine. Who doesn’t have something that they might want changed if it could be done safely and inexpensively? And then what of evolution?