DNA Marker Index information for Chromosome: Y Marker: BY2745Names and Aliases for this DNA Marker: BY2745, BY2745.1, rs920247901.Chromosome Position in hg38 Human Genome assembly1: 8109500.Chromosome Position in hg19 assembly2: 7977541 .Ancestral marker allele value: ins.Derived, alternative, or mutated marker allele value: TA.