b ) protein synthesis in vitro , using synthetic polynucleotides of defined sequence , showed that trna2lys with anticodon c-u-u recognized a-a-g only , whereas trna3lys , which contains thio-nucleotides in and next to the anticodon , decodes both lysine codons a-a-g and a-a-a , but with a preference for a-a-a .
C0032550
polynucleotides
C0028630
nucleotides