An extensive effort to identify the 30,000 to 35,000 genes and establish the sequences of the nearly 3 billion chemical structures that constitute human deoxyribonucleic acid (DNA) and to store and analyze the data with the expectation of using the resulting information to advance research into the causes and treatments of diseases. Although primarily supported by the U.S. Department of Energy and National Human Genome Research Institute and the National Institutes of Health, the Human Genome Project incorporates the work of scientists around the world. The project started in 1990 and completed the full human genome sequence in April 2003, two years ahead of schedule. Already the project has produced numerous significant findings leading to the discovery of genes responsible for or linked to conditions such as Parkinson’s disease and Alzheimer’s disease. The Human Genome Project’s website at www.genome.gov provides updates and analyses of project findings.