the dmd mutation is found where in the human genome
Dystrophin The DMD gene, encoding the dystrophin protein, is one of the longest human genes known, covering 2.3 megabases (0.08% of the human genome) at locus Xp21. The primary transcript in muscle measures about 2,100 kilobases and takes 16 hours to transcribe;[5] the mature mRNA measures 14.0 kilobases.[6] The 79-exon muscle transcript[7] codes for a protein of 3685 amino acid residues.[8]