DNA Marker Index information for Chromosome: Y Marker: FGC42486Names and Aliases for this DNA Marker: FGC42486, rs747142305.Chromosome Position in hg38 Human Genome assembly1: 13479218.Chromosome Position in hg19 assembly2: 15591098 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.