How does the interaction between BPG and fetal hemoglobin affect oxygen transport during pregnancy?

What does the position of the fetal hemoglobin curve on the oxygen saturation graph indicate about its oxygen affinity compared to adult hemoglobin?

Evaluate the physiological significance of fetal hemoglobin's stronger oxygen affinity in the context of maternal-fetal oxygen transfer.

Based on the structural differences between fetal and adult hemoglobin, predict the direction of oxygen flow between maternal and fetal blood.

Analyze how the structural differences between fetal and adult hemoglobin lead to functional outcomes in oxygen transport.

What is the primary reason gamma subunits in fetal hemoglobin enhance oxygen affinity?

What does the leftward shift of the fetal hemoglobin curve on the oxygen saturation graph indicate?