It was suspected that two babies had been exchanged in a hospital. Mr. and Mrs. Jones received baby #1 and Mr. and Mrs. Simon received baby #2. Blood typing tests on the parents and the babies showed the following: Mr. Jones: Type A Mrs. Jones: Type O Baby #1: Type A Mr. Simon: Type AB Mrs. Simons: Type O Baby #2 Type O Were the babies switched? How do you know whether they were or they weren’t? A man with type O blood marries a woman with Type AB blood. Among their children, what proportion would you expect to have blood types like one or the other of these parents? What proportion would have expect to have blood types different from both parents? Explain.