3. Which of the following descriptions about Hb (hemoglobin) is incorrect?
(A) One Hb can bind 4 O2 molecules
(B) HbA has an α2β2 structure
(C) HbF has an α2γ2 structure
(D) HbF has a lower affinity for 2,3-BPG than does HbA
(E) Decreased 2,3-BPG levels are found in the blood of smokers.

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統計: A(1), B(2), C(0), D(0), E(8) #3165123

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