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Author Question: Why are eukaryotic mRNAs not polycistronic, unlike some bacterial transcripts? (Read 99 times)

rosent76

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on: Jan 12, 2022
Why are eukaryotic mRNAs not polycistronic, unlike some bacterial transcripts?
◦ Eukaryote's genetic code is non-overlapping, and so coding sequences cannot overlap on the same mRNA.
◦ Eukaryotes have more complex translational machinery than bacteria that is also less efficient in initiating translation.
◦ Eukaryotic mRNAs are generally shorter than bacteria mRNAs, and so do not contain sufficient information to encode additional polypeptides.
◦ Bacteria couple their translation with transcription, while eukaryotes do not.
◦ The eukaryotic ribosome must bind to the 5' end of the mRNA and scan, while the bacterial ribosome can bind to a Shine-Delgarno sequence anywhere in the mRNA.
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Marked as best answer by rosent76 on Jan 12, 2022

brittiany.barnes

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Reply #1 on: Jan 12, 2022
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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rosent76

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Reply 2 on: Jan 12, 2022
Excellent

Sarahjh

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Reply 3 on: Yesterday
Wow, this really help

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