Physiology Fetal hemoglobin has more affinity for oxygen than adult hemoglobin because ? A Decreased 2,3 DPG concentration B Low affinity for 2,3 DPG C Increase 2,3 DPG concentration D Reduced pH 💡 Explanation Fetal hemoglobin has more affinity for oxygen than adult hemoglobin because ? ✓ Correct Answer: B. Low affinity for 2,3 DPG