One subject matter which keeps popping up is the assumed connection between rh negative blood and the ancient Hebrew population. This is something that has never been officially examined and when looking into it, there are a few points that support a connection while others are rather not in favor of such. Here are a few things I have learned and some myths which I have looked into: 1) “Karaite Jews are 53% Rh Negative” In short: This is untrue. 2 replies to this claim: a) The frequency of the rh negative gene amongst a little bit over 100 Karaite jews in a study from the 1950s indicates 0.53 meaning 53% of the small group examined carries the gene. According … Continue reading How “Jewish” is Rh Negative Blood?