Mitochondrial DNA analysts Christina Miller, right, Jamie Steinitz, center, and Jennifer Kappeller work to prepare bone and tooth samples for DNA extraction. The DNA lab is one of the oldest and largest labs in the world that works with ancient DNA testing, or testing from severely degraded samples. DoD photo by Fred W. Baker III Mitochondrial DNA analysts Christina Miller, right, Jamie Steinitz, center, and Jennifer Kappeller work to prepare bone and tooth samples for DNA extraction. The DNA lab is one of the oldest and largest labs in the world that works with ancient DNA testing, or testing from severely degraded samples. DoD photo by Fred W. Baker III SHARE: Download: Full Size (1.37 MB) Credit: VIRIN: 282936-U-BGD63-583.jpg Photo Gallery