20 (51cm) Canvas Print. DNA sequencing. Computer screen showing asequence of base pairs forming part of the humangenetic code. The three billion base pairs thatform the genetic code of human DNA (deoxyribonucleic acid ) are collectivelyknown as the human genome. Each of the colouredbands represents the position of one of the fournucleotide bases that form the code. As eachperson s genetic code is unique this sequence iscalled a DNA fingerprint.