modifies Haplotype Beta-Globin Haplotype Beta-Haplotypes SCDO Beta-S Haplotypes None Beta-S Haplotype Defined arrays of polymorphic gene sites that are inherited together across the genetic vicinity of the beta-globin gene or gene cluster on chromosome 11. Beta-Globin Haplotypes Request inclusion into relevant ontology Nagel, et. al. NEngl J Med. 1985 Apr 4;312(14):880-4 Phenotype of Sickle Cell Disease Hemoglobin F Level