DNA Marker Index information for Chromosome: Y Marker: BY2909Names and Aliases for this DNA Marker: BY2909, BY3476, Y19077.Chromosome Position in hg38 Human Genome assembly1: 6801235.Chromosome Position in hg19 assembly2: 6669276 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: A.