23 pairs of chromosomes. One incredible you. Click a chromosome pair to explore. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 The cells in your body have 23 pairs of chromosomes - made of DNA. Your DNA can tell you a lot about you. See some of the things you can learn from your DNA by clicking on the chromosomes above.