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Biochemistry

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Enzymes

Question
5 out of 20
 

Correct pair of Ig subclass with their heavy chain:



A IgM - α
B IgG - γ

C IgM - δ
D IgE - γ

Ans. B IgG - γ

In human,s genes for light chains-kappa (k) is in chromosome 2; for light chain lambda (λ) is in chromosome 22 and genes for heavy chains are in chromosome 14.

Each of the 5 classes of immunoglobulin has a characterstic type of heavy chain – alpha (α) in IgA, gamma (γ) in IgG, delta (δ) in IgD, mu (μ) in IgM and epsilon (ε) in IgE.

Immunoglobin has 2 identical light (L) & 2 identical heavy (H) chains, each containing variable (V) & constant (C) regions. Variable regions of light-& heavy chains (i.e. VL & VH) bind to specifc antigen and form a part of Fab (antigen binding fragment).

Enzymes Flashcard List

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