The statement is not quite accurate. tRNA (transfer RNA) does not attach to specific proteins; rather, it carries amino acids to the ribosome during protein synthesis. Each tRNA molecule is specific to one amino acid, and it has an anticodon that pairs with the corresponding codon on the mRNA. The ribosome then facilitates the assembly of these amino acids into a polypeptide chain, ultimately forming a protein.
In summary, tRNA interacts primarily with mRNA and ribosomes during translation, rather than being attached directly to specific proteins.