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Practice MCAT Question - Q67 - Answer!

If the nucleotide sequence for a particular amino acid is CTA on the DNA template strand, what is the nucleotide sequence of the anticodon on the tRNA molecule responsible for bringing that amino acid to the ribosome?


The correct answer is (C). If the template strand of DNA has the nucleotide sequence CTA, then the mRNA codon transcribed from this sequence will be GAU. The anticodon of the tRNA molecule must be complementary to the codon; thus, CUA.

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