Immunoglobulin consists of________________?
Correct answer: A. 2 light, 2 heavy chains
- A. 2 light, 2 heavy chains
- B. 1 heavy, 2 light chains
- C. 1 light, 1 heavy chain
- D. 3 light, 1 heavy chain
Explanation
A basic immunoglobulin molecule contains two identical heavy chains and two identical light chains, linked by disulphide bonds. This four-chain structure forms the characteristic Y-shaped antibody molecule.
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