DNA Marker Index information for Chromosome: Y Marker: Y42503.2Names and Aliases for this DNA Marker: Y42503.2, rs1023184949.Chromosome Position in hg38 Human Genome assembly1: 16282996.Chromosome Position in hg19 assembly2: 18394876 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.