label: Hemoglobin Beta Heterozygous Null Genotype
label_lc: hemoglobin beta heterozygous null genotype
description: "A genetic finding indicating that one copy of chromosome 16 has a functional copy (B) of the hemoglobin beta gene (HBB) and the other copy has HBB loss of function or gene deletion mutations (B0). This genotype is associated with beta thalassemia minor."