More on R1*-M173 bearers

Earlier here, the issue of R1*-M173 ancestry was examined by way of distribution patterns, and other areas of the genome outside of the Y chromosome, like in say an allele on the X chromosome [See R1*-M173 bearing chromosomes in Cameroon (clickable) - for review]. Well, now we will look at another correlation made between Y haplotype and lactose tolerance [which will be revisited here in the