Blood type Memes

Nothing says "your dad isn't your biological father" quite like a blood type that defies Mendelian genetics! This poor soul is discovering the awkward truth through basic biology - if mom is O- and dad is AB+, there's no genetic way to produce another O- child. That's not a rare blood type situation; that's a "someone's been sleeping on the wrong side of the lab bench" situation. The Punnett square in the corner is basically screaming "paternity test needed ASAP." Genetics: destroying family dynamics since 1865.