Secretor Substances

• Considered as a secretor if ABO gene and Sese gene is inherited (Ex. The type A antigen can be detected in the body fluids) • Synthesized on Type 1 precursor chain • Secretion of A, B, and H Ag in body fluids. • 78% can be found in saliva and gastric juices • Readily or easily detected • Capable of Hemagglutination and if presented with an antibody it will agglutinate