DNA Marker Index information for Chromosome: Y Marker: BY91.1Names and Aliases for this DNA Marker: BY91.1, BY91, ZS1425.Chromosome Position in hg38 Human Genome assembly1: 7051526.Chromosome Position in hg19 assembly2: 6919567 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: A.