Remember that the "mitochondrial Eve" is a popular term, but does not imply that she was the first woman on earth, just that mitochondrial DNA shows that all modern women are descended from her. Living at the same time would have been her mother, her mother-in-law and perhaps her sisters and sisters-in-law, as well as more distantly related females.
Scientists believe that the "mitochondrial Eve" lived in Africa and was black.
A:Yes, undoubtedly the hypothetical mitochondrial Eve was black. However, she was not the first human female and should not be confused with the religious Eve. She was simply one female human from whom all present humans were descended. She herself had a mother and possibly sisters, and there were other unrelated females alive at the same time. But as fortune would have it, all humans alive today are descended in some way from this one woman.