DNA Marker Index information for Chromosome: Y Marker: A10977Names and Aliases for this DNA Marker: A10977, BY4659, Y20785, rs965504915.Chromosome Position in hg38 Human Genome assembly1: 16140538.Chromosome Position in hg19 assembly2: 18252418 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.