Pedro and Karli have a baby girl Ella by in vitro fertilization. Ella does not resemble either one of her parents, so they suspect that the clinic made a mistake during the procedure and implanted the wrong embryo. At Ella’s first well-baby checkup they insist that she get her blood typed. Baby Ella is type A-positive. Pedro is A-negative and Karli is O-positive. Given this information answer the following questions. (d) Is it possible that Ella is Pedro and Karli’s daughter? (e) Explain your answer in (d). (f) If baby Ella needed a blood transfusion, could either of his parents serve as a blood donor? ______ If so, which one? ______________________________ (g) Explain your answer in (f). ________________________________________ _______________________________________

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