Unlike the other biological molecules, proteins are the most complex in terms of its formation from its monomer as well as the different forms it can take when fully formed (primary, secondary, tertiary and quaternary).The process of its formation begins in the nucleus and ends in the cytoplasm. Transcription is the first step in protein synthesis. This involves the unwinding of the DNA molecule in the nucleus followed by the formation of mRNA by …showed first 75 words of 306 total…

…showed last 75 words of 306 total…linked together to the next amino acid by peptide bond. The polypeptide chain continues to extend until a stop codon is reached, (UAG, UGA or UAA). At this point the protein now with its primary structure leaves the ribosome and translation is complete. As the protein leaves it may immediately assume its secondary, tertiary or quaternary structures or if the ribosome is attached to the endoplasmic reticulum, the protein may enter it to be transported.