Which of the following statements regarding hemoglobinopathies is MOST correct?
A. Deoxygenation of sickle hemoglobin (HbS) results in polymerization that produces sickling of the red cell which is reversible Correct Choice
B. The alpha-thalassemias are usually caused by the deletion of one or more beta-globin genes Wrong Choice!
C. Fetal hemoglobin (HbF) increases the polymerization of HbS and promotes sickling of RBCs Wrong Choice!
D. Pulmonary embolism is the most common cause of death in βthalassemia major (TM) Wrong Choice!
Answer:A
Which of the following statements regarding hemoglobinopathies is MOST correct?
A. Deoxygenation of sickle hemoglobin (HbS) results in polymerization that produces sickling of the red cell which is reversible Correct Choice B. The alpha-thalassemias are usually caused by the deletion of one or more beta-globin genes Wrong Choice! C. Fetal hemoglobin (HbF) increases the polymerization of HbS and promotes sickling of RBCs Wrong Choice! D. Pulmonary embolism is the most common cause of death in βthalassemia major (TM) Wrong Choice!