AA + AA =✅
AA + AS =✅
AA + SS =✅
AA + AC =✅
AS + AS =❌
AS + SS =❌
AS + AC =❌
AC + SS =❌
SS + SS =❌
SC + AS =❌
Nigeria reportedly has the highest number of people with SS
If a person inherits this gene from both parents that person will have Hemoglobin C disease
If the person inherits it from only one parent then the person has the Hemoglobin C trait(AC)
This disease has similar symptoms similar to sickle cell anemia or Hemoglobin C disease,also said to be less severe