The Various Classes of Immunoglobulins are Differentiated on the Basis

Question

The various classes of immunoglobulins are differentiated on the basis of their
A) asymmetry.
B) antigen specificity.
C) light-chain variable segments.
D) heavy-chain constant segments.
E) reactivity.

Accepted Answer

The various classes of immunoglobulins (IgG, IgA, IgM, IgE, IgD) are differentiated based on their heavy-chain constant segments. Each class has a distinct heavy chain (γ, α, μ, ε, δ, respectively), which determines its functional and structural properties.