where does the gene for red hair come from
Red hair The alleles Arg151Cys, Arg160Trp, Asp294His, and Arg142His on MC1R are shown to be recessives for the red hair phenotype.[39] The gene HCL2 (also called RHC or RHA) on chromosome 4 may also be related to red hair.[40][41]
Blond Recent archaeological and genetic study published in 2014 found that seven "Scandinavian hunter-gatherers" found in the 7,700-year-old Motala archaeological site in southern Sweden had both light skin gene variants, SLC24A5 and SLC45A2, and that they had a third gene, HERC2/OCA2, which causes blue eyes and also contributes to lighter skin and blond hair.[33] Genetic research published in 2014 and 2015 also indicates that Yamnaya Proto-Indo-Europeans who migrated to Europe in the Bronze Age were overwhelmingly dark-eyed (brown), dark-haired and had a skin colour that was moderately light, though somewhat darker than that of the average modern European.[34] Light pigmentation traits had already existed in pre-Indo-European Europeans (both farmers and hunter-gatherers), and long-standing philological attempts to correlate them with the arrival of Indo-Europeans from the steppes were misguided.[35]