DNA Marker Index information for Chromosome: Y Marker: Z4863Names and Aliases for this DNA Marker: Z4863, M2018, rs551644618.Chromosome Position in hg38 Human Genome assembly1: 9007821.Chromosome Position in hg19 assembly2: 8875862 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.