Problem
Jessalyn regularly goes in for blood transfusions. Jessalyn's blood type is A-. Normally her blood transfusions go well and her nurse, Traci, does a great job of double checking the blood type she is receiving. This time Traci is out of town and she gets a nurse who was able to skate through school doing the bare minimum and doesn't really care that much about his job. He doesn't double check the blood type for her transfusion and . . .
a) The blood type was incorrect. Diagram what happened to Jessalyn.
b) Which blood type(s) could Jessalyn receive, why?