DNA Marker Index information for Chromosome: Y Marker: P77Names and Aliases for this DNA Marker: P77, i4000222, rs371231578, rs796564269.Chromosome Position in hg38 Human Genome assembly1: 12814267.Chromosome Position in hg19 assembly2: 14926202 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.