Which antibody has the highest number of anti | vedclass

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(A) Antibodies are classified based on their structure and function. $IgM$ is a pentamer,meaning it consists of five basic antibody units joined toget

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$IgM$

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(A) Antibodies are classified based on their structure and function. $IgM$ is a pentamer,meaning it consists of five basic antibody units joined together by a $J$-chain. Since each basic antibody unit has $2$ antigen-binding sites,a pentameric $IgM$ molecule has $5 	imes 2 = 10$ antigen-binding sites. $IgG$,$IgD$,and $IgE$ are monomers ($2$ sites),while $IgA$ is typically a dimer in secretions ($4$ sites). Therefore,$IgM$ has the highest number of antigen-binding sites.

Which antibody has the highest number of antigen-binding sites?

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