Here's how it works:

* mRNA (messenger RNA) carries the genetic code from DNA to the ribosomes, where protein synthesis occurs.

* tRNA molecules have a specific three-nucleotide sequence called an anticodon that is complementary to a three-nucleotide sequence called a codon on the mRNA.

* Each tRNA molecule also carries a specific amino acid.

* During translation, the ribosome moves along the mRNA strand, reading each codon.

* For each codon, the corresponding tRNA molecule with the complementary anticodon binds to the mRNA.

* The amino acid attached to the tRNA is then added to the growing polypeptide chain.

In essence, tRNA acts like a "translator" or "decoder" because it converts the nucleotide sequence of mRNA into the amino acid sequence of a protein.