'Zoom in on your genome' allows you to take a journey into the body to see where the genome is found and how DNA is packaged in the cell nucleus. Your journey will start outside the body and take you into the liver and a liver cell. You will then travel to the cell nucleus and unwind the chromosomes to reveal the DNA itself. You will see the various levels of DNA packaging and the four basic building blocks of DNA. This animation and many others are available from http://www.yourgenome.org/.