DNA Marker Index information for Chromosome: Y Marker: MF19409.1Names and Aliases for this DNA Marker: MF19409.1, MF19409, rs974940653.Chromosome Position in hg38 Human Genome assembly1: 6766733.Chromosome Position in hg19 assembly2: 6634774 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.