Q 26E - Organic Chemistry (Mcmurry)

Question

Question: For what amino acids do the following ribonucleotide triplets code?

1. AAU
2. GAG
3. UCC
4. CAU

Step-by-Step Solution

Answer

1. The amino acid for the AAU triplet code is Asn.
2. The amino acid for the GAG triplet code is Glu.
3. The amino acid for the UCC triplet code is Ser.
4. The amino acid for the CAU triplet code is His.

Step 1: Definition of amino acids

An organic compound that contains amino and carboxylate −CO−2 functional groups, along with a side chain specific to each amino acid is defined as amino acids.

Step 2: Ribonucleotide triplets represent which amino acids

1. The first base is A, the second base is A and the third base is U, the message indicates “Asn” from the code assignment table. The amino acid for AAU triplet code is Asn
2. The first base is G, the second base is A and the third base is G, the message indicates “Glu” from the code assignment table. The amino acid for the GAG triplet code is Glu. 
3. The first base is U, the second base is C and the third base is C, the message indicates “Ser” from the code  assignment table. The amino acid for the UCC triplet code is Ser. 
4. The first base is C, the second base is A and the third base is U, the message indicates “His” from the code assignment table. The amino acid for the CAU triplet code is His.