Here's a breakdown:
* mRNA: Carries the genetic code from DNA to the ribosomes, where protein synthesis occurs. It consists of a sequence of codons, each made up of three nucleotides.
* tRNA: Brings specific amino acids to the ribosome based on the mRNA code. Each tRNA molecule has an anticodon, a sequence of three nucleotides that is complementary to a specific codon on the mRNA.
* Anticodon: This three-nucleotide sequence on the tRNA binds to the corresponding codon on the mRNA through complementary base pairing (A with U, and G with C).
Therefore, the three nucleotides on tRNA that are complementary to the mRNA are collectively known as the anticodon.