has causal genotype has causal or contributing genetic variation Hemoglobin Trait Hemoglobin D Trait Few but definitions not freely available Hb AD SCDO (Jade Hotchkiss) Request inclusion into NCIT below "Hemoglobin Trait". The inheritance of the gene for hemoglobin D from one parent and a gene for normal adult hemoglobin (hemoglobin A) from the other parent. http://www.doh.wa.gov/Portals/1/Documents/5220/HbDFactSheet.pdf HBB, SER9TYR HBB, GLU121GLN HBB, GLY16ARG HBB, ASN19LYS HBB, GLU22GLN HBB, GLU22VAL HBB, THR87LYS HBB, GLU121ALA Hemoglobin Genotype AD