Question

The chart matches messenger RNA codons with amino acids. A DNA strand has the codon AAT. What amino acid would it be that corresponds the messenger RNA code?

Answer 1

The answer is leucine.

According to the rule of complementarity, messenger RNA code that is complement to DNA codon AAT is UUA:
DNA: AAT
RNA: UUA

So, in the chart must be found amino acid that corresponds to the messenger RNA code UUA. That is leucine.