Why do biracial people (half white & half black) look more black than white?

First, this isn't always the case. Second, darker eyes and hair are always dominant, meaning that if a baby inherited a blonde, red, or brown hair color gene from one parent and a black hair color gene from the other parent, the baby's hair would be black. Same with eyes: brown eyes are dominant over blue, green and hazel eyes. Skin color, on the other hand, has no dominant or recessive gene. When people of two different skin tones have a child, the child's skin tone will be a blend of the two parents skin tones.