hemolysates from adults with the alpha-thalassemia-1 haplotype due to the greater than 17.5-kb deletion of both alpha-globin genes from the same chromosome were found to contain embryonic zeta ( zeta ) -globin chains ( alpha-globin-like chains ) , as determined by a specific and sensitive radioimmunoassay and an electrophoretic technique . zeta-globin chains were not present in hemolysates from adults with deletion of a single alpha-globin gene from one or both chromosomes .
C0002270
alpha-globin
C0043472
zeta-globin