Red Hair (also referred to as titian or ginger hair) varies from a deep burgundy through burnt orange to bright copper. People with red hair are often referred to as redheads or gingers. Approximately 1% to 2% of the human population has red hair. It occurs more frequently (between 2% and 6% of the population) in northern and western Europeans, and their descendants, and at lower frequencies throughout other parts of the world. Red hair appears in people with two copies of a recessive gene on chromosome 16 which causes a mutation in the MC1R protein. It is associated with fair sk… 続きを読む