Final answer:
An anticodon is a triplet nucleotide sequence on a tRNA molecule that is complementary to a codon on an mRNA molecule.
Step-by-step explanation:
An anticodon is a set of triplet nucleotide bases in a tRNA molecule that is complementary to a codon triplet of nucleotide bases in an mRNA. It plays a crucial role in protein synthesis by pairing with the codon on the mRNA during translation. For example, if the codon on the mRNA is AUG, the anticodon on the tRNA will be UAC.
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