National Geographic : 2018 Apr
Skin Deep 29 By ELIZABETH KOLBERT Photographs by ROBIN HAMMOND Skin Deep What is race, exactly? Science tells us there is no genetic or scientific basis for it. Instead it’s largely a made-up label, used to define and separate us. 29 The four letters of the genetic code—A , C, G, and T— are projected onto Ryan Lingarmillar, a Ugandan. DNA reveals what skin color obscures: We all have African ancestors.