Biochemistry Which of the following amino acids in a protein commonly acts as a potential O-Glycosylation site for attachment of an oligosaccharide unit – A Glutamine B Cysteine C Serine D Asparagine 💡 Explanation Which of the following amino acids in a protein commonly acts as a potential O-Glycosylation site for attachment of an oligosaccharide unit - ✓ Correct Answer: C. Serine