> We share a common ancestry with Adam
Looks like you don’t take Genesis as authoritative, either.
Adam and we do not have common ancestry.
The Bible says that Adam was especially created by God, not descended from “lower forms”.
Blood types do not denote ancestry, yet they are genetic. So, how can people with different ancestries have the same blood type? Specifically, how can an African have the same blood type as a Russian? Yet, we see this.
Eve was formed from Adams rib, so she will have the same genetic markers. Where do all the various blood types come from?
Don’t forget the Rh factor, also.