DNA Marker Index information for Chromosome: Y Marker: CTS7620.1Names and Aliases for this DNA Marker: CTS7620.1, CTS7620, rs202139479.Chromosome Position in hg38 Human Genome assembly1: 15454907.Chromosome Position in hg19 assembly2: 17566787 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.