All Primates share ABO Blood Types from a previous ancestor

[abu afak]

From whom could a human inherit a negative Rh factor?

We are talking about evolution, not identical BUT.. this is (ironically) "from whom."

"...There is also the Rh blood group system—named after the Rhesus monkeys whose blood revealed a similar blood antigen to human beings. There are nearly 50 different Rh antigens, but this second blood group system is slightly simpler than the ABO system, yet still adds an extra level of accuracy and sensitivity when donating or transfusing blood between humans."..."

Can Humans Receive Blood From Chimps?​

Chimpanzees and bonobos possess about 98.7% of the same DNA makeup as human beings. Despite our obvious differences in physical appearance, our genetic makeup is nearly identical, which is why the question of potential blood transfusions between our species is so interesting.
www.scienceabc.com

:^)
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