In this study we have carried out haplotype analysis at the beta-globin gene cluster and defined the beta-thalassaemia mutations in a large Sardinian family, ascertained through a proband with thalassaemia major, in which several members were carriers of a beta-thalassaemia allele characterized by microcytosis, hypochromia and normal Hb A2 levels (type 2 normal Hb A2 heterozygous beta-thalassemia).
C0333912
Hypochromatism