(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?

Valerie Harvey is a dermatologist in Newport News and Virginia Beach, Virginia. She was the co-founder of the Hampton University Skin of Color Research Institute in Virginia. Dermatology is a ...