DNA Marker Index information for Chromosome: Y Marker: BY42776Names and Aliases for this DNA Marker: BY42776, A21315, rs955654023.Chromosome Position in hg38 Human Genome assembly1: 8707380.Chromosome Position in hg19 assembly2: 8575421 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.