we analyzed dna for variant numbers of alpha-globin genes , notably the alpha-thalassemia2 ( -alpha/ ) , alpha-thalassemia1 , ( - -/ ) , and triplicated alpha-globin gene ( alpha alpha alpha/ ) haplotypes using restriction enzymes and probes for alpha-globin and zeta-globin gene sequences .
C0002270
alpha-globin
C0043472
zeta-globin