rs1805009, known as Asp294His or D294H and located in the MC1R gene, is the most common variant associated with red hair (redheads) and poor tanning ability in one study. [PMID 7581459] The risk allele is rs1805009(C), compared with the wild-type rs1805009(G) allele. (C,C) 可能是紅頭發(fā) (C,G) 不為紅頭發(fā) (G,G) 不為紅頭發(fā)