DNA Marker Index information for Chromosome: M Marker: T742CNames and Aliases for this DNA Marker: T742C, T742, i3001945, rs368221863.Chromosome Position in hg38 Human Genome assembly1: 742.Chromosome Position in hg19 assembly2: 742 .Ancestral marker allele value: T.Derived, alternative, or mutated marker allele value: C.