DNA Marker Index information for Chromosome: Y Marker: M101Names and Aliases for this DNA Marker: M101, MF51799, rs377183597, rs796569383.Chromosome Position in hg38 Human Genome assembly1: 19555586.Chromosome Position in hg19 assembly2: 21717472 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.