Explanation

Transfer RNA (tRNA) molecules are the adaptors of protein synthesis: each tRNA is charged with a specific amino acid by aminoacyl-tRNA synthetase and delivers it to the ribosome, pairing its anticodon with the mRNA codon. Messenger RNA carries the genetic message, while snRNA functions in splicing and miRNA in gene silencing; neither carries amino acids. Hence tRNA recognises and carries the amino acids.