DNA Marker Index information for Chromosome: Y Marker: M4121.1Names and Aliases for this DNA Marker: M4121.1, M4121, rs553037818.Chromosome Position in hg38 Human Genome assembly1: 12047730.Chromosome Position in hg19 assembly2: 14168436 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: T.