Below is an instruction from Human. Write a response.
    ### Instruction:
    Is Alpha-thalassemia inherited ?
    ### Response:
    How is alpha-thalassemia inherited? The inheritance of alpha-thalassemia is complex because the condition involves two genes: HBA1 and HBA2. People have two copies of the HBA1 gene and two copies of the HBA2 gene in each cell. Each copy is called an allele.
    