DNA Marker Index information for Chromosome: Y Marker: CTS7618Names and Aliases for this DNA Marker: CTS7618, S4908, rs777266956.Chromosome Position in hg38 Human Genome assembly1: 15453087.Chromosome Position in hg19 assembly2: 17564967 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.