Use the following to answer questions :
-The next step in the translation of this mRNA will be the formation of a peptide bond between which two of the numbered amino acids?
A) amino acid 2 and amino acid 3
B) amino acid 2 and amino acid 4
C) amino acid 1 and amino acid 3
D) amino acid 1 and amino acid 2
E) amino acid 3 and amino acid 4

Question

Use the following to answer questions : 
-The next step in the translation of this mRNA will be the formation of a peptide bond between which two of the numbered amino acids?
A) amino acid 2 and amino acid 3 
B) amino acid 2 and amino acid 4 
C) amino acid 1 and amino acid 3 
D) amino acid 1 and amino acid 2 
E) amino acid 3 and amino acid 4

Quizplus · Accepted Answer

The next step in the translation of this mRNA will be the formation of a peptide bond between amino acid 2 and amino acid 3. This is because the ribosome will read the mRNA codon by codon, and each codon will specify a particular amino acid. The first codon, AUG, specifies methionine, which is amino acid 1. The second codon, UUU, specifies phenylalanine, which is amino acid 2. The third codon, UCU, specifies serine, which is amino acid 3. The ribosome will then catalyze the formation of a peptide bond between the carboxyl group of amino acid 2 and the amino group of amino acid 3.

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