I found out mine when I was studying Biology I still have the test card somewhere. I'm AB+ & so was my DB.
My DDs - found out when they were born - 1 : A+ & 1 : B+
It's a fascinating subject. Native Americans have a unique blood group RzRz.
In the Basque region many are rhesus negative.
In some countries their military Do have their blood group tattooed on them.
Wrong side driving social media stunt


