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Understanding Blood Types: A Closer Look at ABO System and Paternity Testing

Explore the fascinating world of blood types in this chapter on the ABO blood group system. Learn about the four primary blood types: A, B, AB, and O, and their genetic foundations based on alleles iA, iB, and iO. Discover how these blood types are defined by the antigens present on red blood cells and the significance of Rh factors. We'll also delve into the role of antibodies in blood plasma, the importance of blood typing in paternity testing, and how genetic testing offers even greater accuracy. Remember, giving blood can save lives!

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Understanding Blood Types: A Closer Look at ABO System and Paternity Testing

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Presentation Transcript

  1. ABO Blood Types Chapter 14

  2. Did someone say blood?

  3. Blood types • What phenotypes are there?: • Types A, B, AB, O • Alleles iA, iB, iO • The blood types are named for the antigen tags on the blood cells • The positive and negative relate to the Rh factor • We will not be covering the Rh factor

  4. Blood Types • Type A • iA iA • iA iO Type B • iB iB • iB iO • Type AB • iA iB • Type O • iO iO

  5. Visualization of Blood Groups • Alleles • Genotypes

  6. RBC Surface

  7. Antibodies • Antibodies are proteins in the blood plasma that defend against foreign substances invading • A person exposed to foreign blood group antigens may produce antibodies.

  8. Reactions

  9. What is happening here?

  10. Who is the baby’s daddy • Sound like Maury or Jerry Springer? • Blood typing is one way to see if paternity is possible • Genetic testing is more accurate

  11. Here is How it Works

  12. Which goes with Which?

  13. Dist. Of Blood Types

  14. Give Blood • You never know when you may need some!

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