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Problem 30 Medium Difficulty

Classifying Blood Types Human blood is classified as either Rh+ or Rh-. Blood is also classified by type: A, if it contains an A antigen but not a B antigen; B, if it contains a B antigen but not an A antigen; AB, if it contains both A and B antigens; and O, if it contains neither antigen. Draw a Venn diagram illustrating the various blood types. Based on this classification, how many different kinds of blood are there?

Answer

So different types of blood are four.

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Top Algebra Educators
Anna Marie V.

Campbell University

Caleb E.

Baylor University

Kristen K.

University of Michigan - Ann Arbor

Michael J.

Idaho State University

Video Transcript

Okay, let's start with a Venn diagram for all the blood type information. So we have a rectangle and then we have a circle for type A or for the blood that has anti Jin A, I should say, in a circle for the blood that has Auntie Jen B. So we have type a blood which has anti jin a type B blood which has Auntie Jen B and type A B blood that has both and type o blood. That has neither. So, at this point, we have those four types. Now we also have the classifications of Rh positive and negative. So we have four types based on antigens, times two types based on the Rh plus or minus. And according to the multiplication principle, if we multiply those, we get eight blood types altogether.

Oregon State University
Top Algebra Educators
Anna Marie V.

Campbell University

Caleb E.

Baylor University

Kristen K.

University of Michigan - Ann Arbor

Michael J.

Idaho State University