DNA Marker Index information for Chromosome: Y Marker: B642Names and Aliases for this DNA Marker: B642, MF727422.2, rs78393401, MF727422.1, MF727422.Chromosome Position in hg38 Human Genome assembly1: 15814680.Chromosome Position in hg19 assembly2: 17926560 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.