(Special to The Root) — Skin color is one of our most important biological traits. Its many shades evolved as humans moved far and wide into regions with different intensities of sunlight. Skin color ...

In this episode, Dr. Tina Lasisi walks us through how we genetically inherit skin color. Have you ever been convinced that you’re adopted because your parents have a radically different skin color?

Sarah Tishkoff Of the University of Pennsylvania led a collaborative team of researchers who have discovered key insights into the molecular basis of skin color differences among Africans. “There’s so ...