Which statement BEST describes the composition of the B cell antigen receptor?

Question

Answer

It is made up of two polypeptide chains with two complementary antigen binding sites

Answer

It is made up of four different polypeptide chains with two complementary antigen binding sites

Answer

It is made up of four identical polypeptide chains with two identical antigen binding sites

Answer

It is made up of two pairs of polypeptide chains with two identical antigen binding sites

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