DNA Marker Index information for Chromosome: Y Marker: BY57199Names and Aliases for this DNA Marker: BY57199, MPB074, B657, rs764319398.Chromosome Position in hg38 Human Genome assembly1: 3036370.Chromosome Position in hg19 assembly2: 2904411 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.