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2. Fill in an mRNA codon that would code for each amino acid shown.

Amino acid:

GLU - PHE - TRP

mRNA codon:

1 answer

To fill in the mRNA codons for the specified amino acids, we use the standard genetic code.

  • GLU (Glutamic acid): The mRNA codon for Glu is GAA or GAG.
  • PHE (Phenylalanine): The mRNA codon for Phe is UUU or UUC.
  • TRP (Tryptophan): The mRNA codon for Trp is UGG.

So the completed mRNA codons for GLU, PHE, and TRP are:

  • GLU: GAA / GAG
  • PHE: UUU / UUC
  • TRP: UGG