The genetic code is degenerate, meaning many amino acids can be encoded by multiple codons. The third base in the codon, called the wobble position, is less discriminatory for amino acid matching than the first two bases. Certain tRNAs can recognize multiple codons due to wobble pairing between the third base of the codon and the first base of the anticodon. In particular, when the first base of the anticodon is inosine, it allows for wobble pairing with multiple third base options in the codon.