71st BPSC Prelims (2025), question 141

🔬 Science & Technology

  1. Which class of immunoglobulin is first produced in response to infection?

    1. IgG
    2. IgA
    3. IgM
    4. IgE
    Show answer

    Answer: C — IgM

    IgM is the first antibody class produced in a primary immune response.

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