DNA Marker Index information for Chromosome: Y Marker: M78Names and Aliases for this DNA Marker: M78, PF2186, rs368977028.Chromosome Position in hg38 Human Genome assembly1: 19731417.Chromosome Position in hg19 assembly2: 21893303 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.