Multiple choice

Immunoglobulins are divided into five different classes on which of the following bases?

  1. Amino acid sequence in the constant region of light chain

  2. Amino acid sequence in the variable region of heavy chain

  3. Amino acid sequence in the constant region of heavy chain

  4. Amino acid sequence in the variable region of light chain
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C Correct answer
Explanation

Immunoglobulins can be divided into five different classes based on differences in the amino acid sequences in the constant region of the heavy chains. They are IgD, IgM, IgE, IgA and IgG.

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