Where is the antigen-binding site present on | vedclass

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(A) The $Y$-shaped antibody molecule is composed of $4$ polypeptide chains: two identical light chains and two identical heavy chains,held together by

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On light chain as well as on heavy chain

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(A) The $Y$-shaped antibody molecule is composed of $4$ polypeptide chains: two identical light chains and two identical heavy chains,held together by disulphide bonds.The antigen-binding site (paratope) is formed at the $N$-terminal end of the antibody molecule,where the variable region of a heavy chain and the variable region of a light chain come together.Therefore,the antigen-binding site involves both the light chain and the heavy chain.

Where is the antigen-binding site present on the antibody molecule?

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