.HbF is the predominant hemoglobin of embrions.It has two γ-and two α-subunits(α2γ2).HbF does not bind 2,3-BPG well.What is the affinity of oxygen binding for HbF in compare with HbA?For answer: 1）Explain the function of HbA and the role of 2,3-BPG in the regulation of O2 binding. 2）Draw the oxygen-binding curves of HbA and HbF. 3）Mark the Biology significance of the difference in O2 affinity for HbA and HbF.

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Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.