DNA Marker Index information for Chromosome: Y Marker: BY4655.1Names and Aliases for this DNA Marker: BY4655.1, BY4655, Y20129.2.Chromosome Position in hg38 Human Genome assembly1: 15907677.Chromosome Position in hg19 assembly2: 18019557 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.