Question:

Identify the monomer form of the Antibodies among the following groups

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Monomer antibodies = IgG, IgD, IgE.
Updated On: Jul 18, 2026
  • IgA, IgD, IgE
  • IgG, IgA, IgM
  • IgG, IgA, IgE
  • IgD, IgE, IgG
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The Correct Option is D

Solution and Explanation

Step 1: Understanding immunoglobulins.
Antibodies (immunoglobulins) exist in different structural forms such as monomers, dimers, and pentamers depending on their class.

Step 2: Monomeric antibodies.
Monomeric antibodies consist of a single Y-shaped unit. IgG, IgD, and IgE are typically monomeric in structure.

Step 3: Other structural forms.
IgA is usually dimeric in secretions, while IgM is pentameric in blood circulation. This distinguishes them from monomers.

Step 4: Functional significance.
Monomeric antibodies are more flexible and circulate freely in blood and tissues for immune defense.

Step 5: Evaluation of options.
Only option containing all monomeric immunoglobulins is IgD, IgE, and IgG. Other options include dimeric or pentameric forms.

Step 6: Final conclusion.
Thus, monomeric antibodies are IgG, IgD, and IgE.
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