DNA Marker Index information for Chromosome: Y Marker: BY30749Names and Aliases for this DNA Marker: BY30749, Y109474, rs933201678.Chromosome Position in hg38 Human Genome assembly1: 20525145.Chromosome Position in hg19 assembly2: 22687031 .Ancestral marker allele value: A.Derived, alternative, or mutated marker allele value: G.