DNA Marker Index information for Chromosome: Y Marker: A681Names and Aliases for this DNA Marker: A681, Y7142, rs1006950577.Chromosome Position in hg38 Human Genome assembly1: 7057260.Chromosome Position in hg19 assembly2: 6925301 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: C.