Post-translational modifications include all of the following EXCEPT
A)removal of introns.
B)formation of hydrogen bonds among carbonyl and amino groups of the polypeptide backbone.
C)formation of covalent bonds between cysteine residues of the amino acid site chains.
D)addition of carbohydrates to form a glycoprotein.

Question

Quizplus · Accepted Answer

Removal of introns is a process that occurs during transcription, which is a pre-translational modification. Post-translational modifications refer to changes that happen to the protein after it has been fully translated. B, C, and D are all examples of post-translational modifications.

Post-Translational Modifications Include All of the Following EXCEPT