DNA Marker Index information for Chromosome: Y Marker: Y31639.1Names and Aliases for this DNA Marker: Y31639.1, Y31639.Chromosome Position in hg38 Human Genome assembly1: 15955115.Chromosome Position in hg19 assembly2: 18066995 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: T.