In the context of mRNA and tRNA, it's important to clarify that the sequence of bases in mRNA is complementary to the sequence of bases on the template strand of DNA during transcription. However, when referring to tRNA, we are generally interested in how tRNA pairs with mRNA during translation.
If the mRNA codon is UU, this is actually an incomplete codon since mRNA codons are typically three nucleotides long. However, if we assume you meant the codon as UUU, which codes for the amino acid phenylalanine, then we can proceed.
- mRNA Codon: UUU
- tRNA Anticodon: The tRNA that corresponds to this mRNA codon will have an anticodon that is complementary to the mRNA. Therefore, for the UUU codon, the tRNA anticodon would be AAA.
If you meant just UU, it would not correspond to a full codon, and tRNA does not typically interact with partial codons.
In summary, for the full codon UUU, the corresponding tRNA anticodon would be AAA.