DNA Marker Index information for Chromosome: Y Marker: FGC7858.1Names and Aliases for this DNA Marker: FGC7858.1, FGC7858, rs766604489.Chromosome Position in hg38 Human Genome assembly1: 18929182.Chromosome Position in hg19 assembly2: 21091068 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: T.