Most people might be surprised to learn that the human genome has not been fully sequenced. Gaps still remain that have not yet been bridged because of the nature of the DNA sequence coupled with past limitations on DNA sequencing technology. Nevertheless, a study has just been published using new and improved technologies that have allowed for the first complete sequence of a human chromosome.1 Sequencing the complete human genome was first proposed and begun in the late 1980s, but did not p