* Rh-null blood lacks all 61 Rh antigens, making it extremely rare and medically valuable * It can save lives as a universal donor within rare blood types * Rh-null individuals //can only receive ...

Add Yahoo as a preferred source to see more of our stories on Google. Close-Up Of Donated Blood In Bag Your blood type affects everything, from a predisposition to certain diseases to your heart ...

There’s more history in your blood types than you think, and it didn’t begin with humans. Here’s what we know about them, ...