"The addition of a CH3CO group to the N-terminus of a protein is the most common form of protein modification. This chemical modification is called ________."

"The addition of a CH3CO group to the N-terminus of a protein is the m

1.	"The addition of a CH3CO group to the N-terminus of a protein is the most common form of protein modification. This chemical modification is called ________."
A.	Phosphorylation
B.	Ubiquitination
C.	Methylation
D.	Acetylation
Answer» E.