DNA Marker Index information for Chromosome: Y Marker: BY7640Names and Aliases for this DNA Marker: BY7640, V3948, AM00031, rs1459823102.Chromosome Position in hg38 Human Genome assembly1: 17146253.Chromosome Position in hg19 assembly2: 19258133 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: C.