Hemoglobin S (HbS)is Formed in Sickle Cell Disease as a Result

question 15

Multiple Choice

Hemoglobin S (HbS) is formed in sickle cell disease as a result of which process?

• A) Deficiency in glucose 6-phosphate dehydrogenase (G6PD) that changes hemoglobin A (HbA) to HbS.
• B) Genetic mutation in which two amino acids (histidine and leucine) are missing.
• C) Genetic mutation in which one amino acid (valine) is replaced by another (glutamic acid).
• D) Autoimmune response in which one amino acid (proline) is detected as an antigen by abnormal immunoglobulin G (IgG).

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