Chromosomes & mtDNA To use the sharing features on this page, please enable JavaScript. Read about each of the human chromosomes and mitochondrial DNA (mtDNA) and the health implications of genetic changes. Information about specific chromosomes chromosome 1 chromosome 2 chromosome 3 chromosome 4 chromosome 5 chromosome 6 chromosome 7 chromosome 8 chromosome 9 chromosome 10 chromosome 11 chromosome 12 chromosome 13 chromosome 14 chromosome 15 chromosome 16 chromosome 17 chromosome 18 chromosome 19 chromosome 20 chromosome 21 chromosome 22 chromosome X chromosome Y Information about mtDNA