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colleen colleen
wrote...
Valued Member
Posts: 17077
12 years ago
Consider the lifetime of an mRNA transcript within an archaeon, a bacterium, and a eukaryote. In which cell type might these last the longest and why?
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Sunshine ☀ ☼

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wrote...
12 years ago
if endo- or exonuclease composition is compared, the eukaryote would have the longest lived mRNA transcript because the eukaryotes lack them. Another possible answer could mention the poly(A) tail unique in Eukarya that stabilizes the transcript and prevents degradation, which would again point to the eukaryote for maintaining the mRNA longest.
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