Here's why:

* tRNA's role: tRNA molecules are responsible for carrying specific amino acids to the ribosome during protein synthesis.

* Anticodon: Each tRNA molecule has an anticodon that recognizes a specific codon on the messenger RNA (mRNA).

* Amino acid attachment: The corresponding amino acid is covalently attached to the tRNA at its 3' end, a specific site called the acceptor stem.

This attachment is crucial for the accurate translation of genetic information into proteins.