Which of the Following Correctly Describes the Structure of Normal $\alpha$

question 19

Multiple Choice

Which of the following correctly describes the structure of normal hemoglobin A (Hb A) ?

• A)four identical polypeptide chains, each containing two heme groups
• B)two \(\alpha\) and two \(\beta\) polypeptide chains, each containing one heme group
• C)conjugated protein with 141 amino acids, containing two atoms of iron
• D)two \( \delta \) and two \( \gamma \) polypeptide chains, each containing a single heme group

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