Biology · Immunology
Which class of antibody is the first to be produced in response to a primary infection or initial exposure to an antigen?
- 1Immunoglobulin D (IgD)
- 2Immunoglobulin A (IgA)
- 3Immunoglobulin M (IgM)✓
- 4Immunoglobulin E (IgE)
Correct answer
Immunoglobulin M (IgM)
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