DNA Marker Index information for Chromosome: Y Marker: S7188.1Names and Aliases for this DNA Marker: S7188.1, S7188.Chromosome Position in hg38 Human Genome assembly1: 21376502.Chromosome Position in hg19 assembly2: 23538388 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: T.