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← ScienceWhich consequence results when disulfide bonds fail in keratin?
A)Complete protein chain depolymerization unfolds
B)Hair loses curl and elasticity✓
C)Denaturation accelerates enzyme catalytic activity
D)Muscle contraction becomes irreversibly rigid
💡 Explanation
Hair elasticity fails because disulfide bonds maintain keratin's structure, therefore loss causes irreversible unfolding via **disulfide exchange**, rather than simple denaturation seen in weaker bonds and temporary unfolding.
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