Hemoglobin Alpha with Heterozygous Triplication

**Semantic type:** Laboratory or Test Result

**Definition:** A genetic finding indicating that one copy of chromosome 16 has two functional copies of the hemoglobin alpha (HBA) genes and the other copy of chromosome 16 has three functional copies due to chromosomal rearrangement. This genotype is associated with the alpha thalassemia silent carrier trait.

**Synonyms:** - (aa/aaa) - HBA with Heterozygous Triplication Genotype - aa/aaa - alpha-globin genotype with triplication (aa / aaa)