Complex sentence: This single strand of mRNA leaves the nucleus through nuclear pores, and migrates into the cytoplasm where it joins with ribosomes, where protein synthesis occurs by the formation of peptide bonds and polypeptide chains.
Split into simpler sentences: This single strand of mRNA leaves the nucleus through nuclear pores, and migrates into the cytoplasm where it joins with ribosomes. Where protein synthesis occurs by the formation of peptide bonds and polypeptide chains.