Which of the Following is NOT a Type of Post-Translational

Question

Which of the following is NOT a type of post-translational modification?
A)A change in the base sequences of DNA
B)Cleavage of a protein product by proteases
C)Addition of lipid groups to the protein chain
D)Glycosylation
E)Methylation

Accepted Answer

Post-translational modifications refer to changes made to a protein after it has been translated from mRNA. Option A involves changes in the DNA sequence, which occurs during transcription and is not considered a post-translational modification.