More on the whole genetic adam/eve thing.
So, as most of us know...a child has more of a chance of getting genetically wrong genes if thier parents are brother and sister. The "bad" genes have a higher chance of being passed on that way.
So...if we all came from Adam and Eve...and their children ect...we would all have the same genes. Hence, we would all be handicapped, as the damaging genes would have been passed on through all the blood lines.
