Polypeptides often require several "changes". Amino acids can be chemically altered or removed during and after translation. New polypeptides fold into specific 3D structures and combine with other polypeptides to form multipart proteins.
Translation is the process of deciphering the genetic code contained in messenger RNA (mRNA) molecules to produce specific amino acid sequences in polypeptide chains. It occurs in the cytoplasm after DNA transcription.
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