13. In N-linked glycosylation, the oligosaccharide chain is attached to protein by: (A) asparagine (B) arginine (C) serine (D) threonine
13. In N-linked glycosylation, the oligosaccharide chain is attached to protein by:
(A) asparagine
(B) arginine
(C) serine
(D) threonine
Answer
Answer: (A) asparagine
Explanation: In N-linked glycosylation, the oligosaccharide chain is attached to the protein at the asparagine residue. Serine and threonine are involved in O-linked glycosylation, and arginine is not typically involved in glycosylation.