When col. lemon arrived at the hospital, the staff determined that his blood had been mistyped, and he was in fact blood type ab-. which of our three suspects could safely donate blood to col. lemon now?

Knowing the correct blood type is essential, for col. Lemon that has a blood type of ab-, the three suspects that could safely donate blood for him are the person that has a blood type of AB-, A-, B-, O-. Moreover, blood type classification is based on the presence and absence of antibodies and inherited antigenic substances on the red blood cells. In addition, blood type is inherited from both parents.