Please help! Translate the following mRNA: 3′-G A U G G U U U U A A A G U A- 5′?

The answer is B. You need to use the Genetic Code table to translate any mRNA code. Then, in order to translate it correctly, start from the 5' end. In this case, the first codon (3-letter unit) is AUG which according to the Genetic Code is Methionine. The next codon is AAA which is Lysine. And so on. Hope this helps. :)