Ribosomes provide the scaffolding on which trnas interact with mrna during translation of an mrna sequence to a chain of amino acids. a ribosome has three binding sites, each of which has a distinct function in the trna-mrna interactions. drag the appropriate trnas to the binding sites on the ribosome to show the configuration immediately before a new peptide bond forms. if no trna is bound to a site at that time, leave that binding site empty.