Question

The chart matches messenger RNA codons with amino acids.

A DNA strand has the codon AAT. According to the chart, the corresponding messenger RNA codes for which amino acid?

Answer 1

The answer is leucine

Step-by-step explanation:

The transcript of AAT is UUA, which is the code for leucine. Using the chart, first find the U on the left, for the first position. Then, go to the first column to find the U for the second position. This means it has to be either phenylalanine(phe) or leucine(leu(). To determine, use the last letter, A, on the right hand side of the chart. Since this is found in the bottom half of the U-U box, it must correspond to leucine.