Transcription, translation, and mRNA degradation occur concurrently in prokaryotes to ensure efficient use of resources and rapid response to changes in the environment.
In prokaryotes, transcription and translation happen in the same compartment, the cytoplasm, allowing the ribosomes to immediately bind to the newly synthesized mRNA and start protein synthesis. As soon as mRNA is transcribed, ribosomes begin translating it into proteins, while the mRNA is still being synthesized. In this way, the time between transcription and translation is minimal, and protein production can occur without delay.
Additionally, mRNA degradation occurs quickly in prokaryotes due to the presence of endonucleases and exoribonucleases that degrade the mRNA molecule. This allows the cell to swiftly adjust its protein production levels in response to changing environmental conditions. If a particular mRNA is no longer needed, it is rapidly degraded, freeing up resources for other essential functions.
Overall, the concurrent occurrence of transcription, translation, and mRNA degradation in prokaryotes allows for quick and efficient response to changing environmental conditions, conserving resources and energy needed to sustain the cell.
why does transcription, translation and mRNA degradation occur concurrently in prokaryotes
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