DNA Marker Index information for Chromosome: Y Marker: M838.1Names and Aliases for this DNA Marker: M838.1, M838, rs566767430.Chromosome Position in hg38 Human Genome assembly1: 8991782.Chromosome Position in hg19 assembly2: 8859823 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.