The answer is B,trust me I took the test.GOOD LUCK
The answer is 50km your wel
Polypeptide chains undergo some modifications before they become fully functional. Some of these modifications include: proteolytic cleavage, lipidation and glycosylation. Proteolytic cleavage refers to the removal of some amino acids from a polypeptide chain by proteases in order for the protein to become active. An example of a substance that is modified through this process is insulin.
As already said, light years is the correct answer, give other peep brainiest