DNA Marker Index information for Chromosome: Y Marker: BY21168Names and Aliases for this DNA Marker: BY21168, Y34170, FGC73757, rs921796867.Chromosome Position in hg38 Human Genome assembly1: 7999176.Chromosome Position in hg19 assembly2: 7867217 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: G.