Immunoglobulins IgG,IgM,IgA,and IgD represent which of the following?

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Immunoglobulins IgG, IgM, IgA, and IgD represent different isotypes of antibodies, which differ in their structures and biological functions. Isotypes are determined by the constant region of the heavy chain of the antibody molecule. Allotypes refer to genetic variations within the constant region of the heavy chain that are found in different individuals, while idiotypes refer to the unique variable region of the antibody molecule that recognizes specific antigens. Heterotypes are not a recognized term in immunology.

Immunoglobulins IgG,IgM,IgA,and IgD Represent Which of the Following