How much is a Second Class stamp? http://www.swaandesign.com/contact/ propecia prescription  New ancient-DNA research led by the National Geographic Society's Genographic Project, the Australian Centre for Ancient DNA (ACAD) and researchers from the University of Mainz in Germany and the State Heritage Museum in Halle (Germany) showed a pattern of genetic replacement taking place across several millennia in a region of central Europe. The genetic data reveal the complex dynamics that went into producing the present-day genetic patterns in Europe and show that the region that is now Germany saw at least four stages of significant migration and settlement, highlighted by marked shifts in the genetic composition of the populations in the region.