Anticodon is the sequence of three nucleotides in a transfer RNA molecule that pairs with a complementary sequence of three nucleotides (codon) on a molecule of messenger RNA. t RNA has clove like shape or L shape (three dimensional). It has G at 5'-end CCA at 3'-end. CCA at 3'-end is meant for attaching to a specific amino acid (AA-binding site). On the opposite side lies an anticodon that is complementary to a specific codon of mRNA. The two are called recognition sites.