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transfer RNA


tRNA
Typical cloverleaf diagram of a tRNA molecule
A class of small RNA's, each containing about 80 nucleotides. A tRNA molecule has two functional sites. At one of these sites, an activating enzyme adds a specific amino acid. The other functional site carries the anticodon specific for that amino acid. Each type of tRNA transfers one particular amino acid to a growing polypeptide chain as specified by the nucleotide sequence of the messenger RNA being translated.


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