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How many different types of protein chains make up hemoglobin?
Q15: Which of the following ions can pass
Q23: By which of the following mechanisms do
Q47: How many different kinds of receptors are
Q55: How many valence electrons do transition metals
Q57: What structural feature is associated with the
Q62: Which of the following can cause enzyme
Q68: The D-form of which of the following
Q69: Which of the following holds the complementary
Q73: The substance shown below is the Fe-protoporphorin
Q75: Secondary messengers perform which of the following