Mark Daly directs computational biology for the Massachusetts General Hospital/Harvard Medical School Medical and Population Genetics Program. Dr. Daly holds a B.S. in physics from the Massachusetts Institute of Technology and a Ph.D. in genetics from Leiden University. Previously, he was the director of the Human Genetics Informatics group at the Whitehead Institute Center for Genome Research. Dr. Daly's group now currently develops and actively supports GENEHUNTER and MAPMAKER/QTL software, used by hundreds of labs worldwide, for performing linkage analyses in natural and experimental pedigrees and more recently has released Haploview, which has become a standard for LD analysis and is a primary analysis and visualization tool used in the HapMap Project.