DNA Marker Index information for Chromosome: Y Marker: BY2171Names and Aliases for this DNA Marker: BY2171, FGC49438, rs972226221.Chromosome Position in hg38 Human Genome assembly1: 21453970.Chromosome Position in hg19 assembly2: 23615856 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: A.