DNA Marker Index information for Chromosome: Y Marker: BY44773Names and Aliases for this DNA Marker: BY44773, A21818, Y143390.Chromosome Position in hg38 Human Genome assembly1: 21254774.Chromosome Position in hg19 assembly2: 23416660 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: C.