DNA provides evidence for the Noah’s Flood and the post Babel human migration The study is called Genographic Project is project which was started by, the National Geographic Society, IBM, and others to determine the migration patterns. Based largly on the assumption of Evolution they started in Africa and then worked out the migration to the rest of the world.
However the raw data is a bunch of Mitochondrial and Y-chromosome DNA samples from various parts of the world. From this data it is possible to show which lines are more closely related to which, but to project back to an origin requires making assumptions about where that origin was. If one starts with Biblical assumptions One would start in Iraq. When this is done the data that supports the Bible. This is because there is clear 3 way split in both and the Mitochondria Y-chromosome lines when one starts in Iraq. Now Noah had 3 sons and 3 daughter in-lawswe would expect a 3 way spit, and that is what we have.