how is gtp used during elongation? a) it aids in the binding of the incoming trna to the a site of the ribosome. b) it provides energy for the formation of the peptide bond. c)it aids in translocating the ribosome one codon down the mrna. d)it provides energy for the formation of the peptide bond and it aids in translocating the ribosome one codon down the mrna. e)it aids in the binding of the incoming trna to the a site of the ribosome and it aids in translocating the ribosome one codon down the mrna.
