For IgG, the antigen binding site is found on the __________.

A) variable regions of two heavy chains
B) variable region of a heavy chain and the variable region of a light chain
C) Fc region
D) variable regions of two light chains
E) constant region of both the heavy chain and the light chain


Ans: B) variable region of a heavy chain and the variable region of a light chain

Biology & Microbiology

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