24. The polymorphic domains for Class II MHC proteins are: (A) α and β2 domains only (B) β and α2 domains only (C) α1 and β1 domains only (D) α2 and β2 domains only
24. The polymorphic domains for Class II MHC proteins are:
(A) α and β2 domains only
(B) β and α2 domains only
(C) α1 and β1 domains only
(D) α2 and β2 domains only
Answer
Answer: (C) α1 and β1 domains only
Explanation: The polymorphic regions of Class II MHC proteins are primarily found in the α1 and β1 domains, which are involved in peptide binding and presentation. The other options include domains not primarily involved in polymorphism.