Understanding Online Genetic Testing by Jeffrey Dach MD – Dr. Ohad Birk of Ben Gurion University does genetic testing for the Desert Bedouin people in Israel. As he explained, the Bedouins tend to inter-marry causing a high rate genetic disease. The result can be devastating, preventable with testing. It is amazing to think about it, but a number of online DNA testing companies offer the same testing services provided by Dr. Ohad Birk: DNA Direct, 23andMe, DeCodeMe, Navigenics, Knome, and MDL. DNA Direct is one of these online genetic testing services offering a reasonable list of tests. To Read More: Click Here.