DNA Marker Index information for Chromosome: Y Marker: P81.1Names and Aliases for this DNA Marker: P81.1, P81, rs368800247, rs796958915.Chromosome Position in hg38 Human Genome assembly1: 6871815.Chromosome Position in hg19 assembly2: 6739856 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.