Science Project Leads Student To Uncover Mother’s Decades-Long Lie

Doing The Math

With a sigh, Professor Lisa Johnson went to the whiteboard and drew a Punnett square for everyone to see. Based on the way a Punnett square works, the Professor explained why it was absolutely impossible that Lydia’s blood type was AB. The way the square proved this was simple. Lydia, faced with seemingly irrefutable proof, started to grow uncertain. Science doesn’t lie, after all…