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ABO Blood Groups

ABO Blood Groups

Table showing blood groups A, B, AB and O, the antigens on their red blood cells, and their possible genotypes

The ABO blood group gene has three alleles: IAI^AIA, IBI^BIB and iii. Although three alleles exist in the population, each person inherits only two, one from each parent.

3.3.6 Inheritance of ABO blood groups Lesson

  1. GCSE
  2. /Biology
  3. /3.3.6 Inheritance of ABO blood groups

Step-by-step lessons on Edexcel GCSE Biology 3.3.6 Inheritance of ABO blood groups. Each one builds up to exam-style questions. Start with the foundational topics and build up to the higher-tier material.

Lessons