If an mRNA codon is GUC, which tRNA anticodon pairs with it?

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Multiple Choice

If an mRNA codon is GUC, which tRNA anticodon pairs with it?

Explanation:
In translation, the codon on the mRNA and the anticodon on the tRNA pair by complementary bases in opposite directions. For the codon GUC, the bases pair G with C, U with A, and C with G. Reading the anticodon in the 3' to 5' direction (to align antiparallel to the codon’s 5' to 3' orientation) gives the sequence CAG. If you write the anticodon in the more common 5' to 3' orientation, it would be GAC. Among the given sequences, the one that corresponds to the correct antiparallel, complementary pairing is CAG. The other sequences do not provide proper base-pair matches in the required orientation, so they would not pair correctly with GUC during decoding.

In translation, the codon on the mRNA and the anticodon on the tRNA pair by complementary bases in opposite directions. For the codon GUC, the bases pair G with C, U with A, and C with G. Reading the anticodon in the 3' to 5' direction (to align antiparallel to the codon’s 5' to 3' orientation) gives the sequence CAG. If you write the anticodon in the more common 5' to 3' orientation, it would be GAC. Among the given sequences, the one that corresponds to the correct antiparallel, complementary pairing is CAG. The other sequences do not provide proper base-pair matches in the required orientation, so they would not pair correctly with GUC during decoding.

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