The correct sequence starts when the smaller subunit of the ribosome binds to mRNA. Then the tRNA binds to the mRNA start codon, the larger subunit binds to the smaller subunit, the tRNA enters the system and starts the peptidyl transfer reaction and everything is done with the ribosome translocation and tRNA release.
In this case, we can say that the correct sequence is formed by sentences 2, 1, 3, 4, and 5.
We can reach this answer because:
- Translation initiation refers to how protein production is initiated.
- Elongation refers to how the peptide chain is elongated with the arrival of amino acids.
- Protein production is done on the ribosome, which has two units, a larger and a smaller one.
- For protein production to start, the smaller subunit must bind to mRNA.
- At that moment the tRNA will bind to the start codon of the mRNA, to capture the codon that will form an amino acid.
- At that point, the larger subunit can bind to the smaller subunit, forming a system that will act as a protein-making machine.
- The tRNA begins to enter the system, crossing the codons and triggering the peptidyl transfer reaction.
- In the end, there is a translocation of the ribosome by mRNA and the release of tRNA.
It is important to remember that translation is the process of producing proteins, which are essential molecules for the formation and functioning of the prokaryotic body.
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