Biochemistry Quaternary structure of the Protein A The sequence of amino acids in a polypeptide chain B The folding of sho (3-30 residue), contiguous segments of polypeptide into geometrically ordered units C The assembly of secondary structural units into larger functional units such as the mature polypeptide and its component domains D The number and types of polypeptide units of oligomeric proteins and their spatial arrangement 💡 Explanation Quaternary structure of the Protein ✓ Correct Answer: D. The number and types of polypeptide units of oligomeric proteins and their spatial arrangement