Practice question
Question
Which structural protein is found in reptile scales and bird feathers?
Explanation
β-Keratin is the correct answer as it accurately identifies the biological location, composition, or distribution described in this question. In Protein, the spatial organization and localization of molecules are critical to their function. β-Keratin is specifically associated with the structure or compartment mentioned because of its unique biochemical properties and physiological role. The other options (α-Keratin, Elastin, and Tropocollagen) are primarily associated with different cellular compartments, tissues, or structural contexts.
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