DNA Marker Index information for Chromosome: Y Marker: L818Names and Aliases for this DNA Marker: L818, S4972, A30938, rs776291331.Chromosome Position in hg38 Human Genome assembly1: 17024941.Chromosome Position in hg19 assembly2: 19136821 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.