A codon is a sequence of three nucleotide bases in DNA or RNA that corresponds to a specific amino acid or a stop signal during protein synthesis. Therefore, a codon consists of three bases.
An anticodon, on the other hand, is a sequence of three nucleotide bases found on transfer RNA (tRNA). It pairs with the complementary codon on messenger RNA (mRNA) during translation. Like a codon, an anticodon also consists of three bases.
In summary, both a codon and an anticodon are made up of three nucleotide bases each.