DNA Marker Index information for Chromosome: Y Marker: F1020Names and Aliases for this DNA Marker: F1020, M1797, rs558583934.Chromosome Position in hg38 Human Genome assembly1: 7737735.Chromosome Position in hg19 assembly2: 7605776 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.