What are the eight different blood types?

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Prepare for the PLTW Biomedical Science Test. Study with flashcards and multiple choice questions, each question comes with hints and explanations. Get ready for your exam!

Multiple Choice

What are the eight different blood types?

Explanation:
Blood type comes from whether red blood cells have A or B antigens and whether the Rh factor is present. This creates eight possible combinations: A+, A-, B+, B-, AB+, AB-, O+, O-. The complete list above is the standard set of all eight types, with each ABO type paired with both Rh positive and Rh negative forms. Other descriptions may omit a type or not present the full set, so they don’t show all eight possibilities.

Blood type comes from whether red blood cells have A or B antigens and whether the Rh factor is present. This creates eight possible combinations: A+, A-, B+, B-, AB+, AB-, O+, O-. The complete list above is the standard set of all eight types, with each ABO type paired with both Rh positive and Rh negative forms. Other descriptions may omit a type or not present the full set, so they don’t show all eight possibilities.

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