Answer:
The codon of the mRNA was UAC.
Step-by-step explanation:
We all know that bases of anticodon of tRNA are complementary to the bases present in mRNA or messenger RNA . The codon anticodon interactuion bring the amino acid specific for that codon in acceptor arm of tRNA.
If an anticodon reads AUG the the codon was UAC because U is complementary to A, A is complentary to U and C is complementary to G.