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A protein is defined as:

Select one:
O a. a class of signaling molecules
b. an ester formed from glycerol and three fatty acid groups
c. a carbohydrate found in living tissues
o d. a chain of amino acids linked by peptide bonds

User YRUsoDiao
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1 Answer

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D. A chain of amino acids linked by peptide bonds
User Pankit Gami
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