Practice question
Question
Which of the following options are correct for immunology? (A) the immunoglobulin molecule is made up of six polypeptide chains (B) the DNA encoding the ‘K’ light chain contains 4 distinct regions (C) close relatives make the best organ donor because they are likely to share the same complement haplotypes (D) The diversity of T cell surface antigen receptor can be compared with the process of immunoglobulin diversity Choose the correct answer from options:
Explanation
Immunoglobulin comprises four chains, not six. Kappa locus contains L, V, J, C regions rearranged somatically. Organ sharing correlates with MHC/HLA haplotypes, not complement. Both immunoglobulin and TCR generate diversity via V(D)J recombination, junctional flexibility and combinatorial association, making B and D accurate.
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