DNA Marker Index information for Chromosome: Y Marker: Y31403.1Names and Aliases for this DNA Marker: Y31403.1, Y31403, V4736, rs974342030.Chromosome Position in hg38 Human Genome assembly1: 7948900.Chromosome Position in hg19 assembly2: 7816941 .Ancestral marker allele value: G.Derived, alternative, or mutated marker allele value: A.