DNA Marker Index information for Chromosome: Y Marker: MFY442Names and Aliases for this DNA Marker: MFY442, BY53231, rs1307111202.Chromosome Position in hg38 Human Genome assembly1: 20317198.Chromosome Position in hg19 assembly2: 22479084 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: A.