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ABO Blood Groups: Blood Transfusion & Inheritance Explained | Genetics Made Simple

In this lesson, we break down the ABO blood group system, explaining both safe blood transfusion compatibility and the genetic inheritance of blood groups in a simple and clear way.

We discuss how the three alleles (IA, IB, and i) determine blood groups, why IA and IB are codominant, and why O (i) is recessive.

The video also explains genotypes and phenotypes of blood groups A, B, AB, and O, blood transfusion compatibility (who can donate to who), why blood group O is called the universal donor and why blood group AB is called the universal recipient.

You will also understand how blood groups are passed from parents to children and how inheritance questions are solved in exams.

This lesson is perfect for students preparing for KCSE Biology exams and anyone who wants to clearly understand blood transfusion and ABO inheritance.

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