Red hair occurs naturally on approximately 1–2% of the human population.[1] It occurs more frequently (2–6%) in people of northern or western European ancestry, and less frequently in other populations. Red hair appears in people with two copies of a recessive gene on chromosome 16 which causes a mutation in the MC1R protein. I'm now testing all my patients for this gene. Once found I will harvest their eggs and create a million redheads. The genes responsible for red hair also cause redheads to respond differently to physical stimuli than men or women with other hair colors. Redheads f… 阅读更多内容