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kemkem9 kemkem9
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6 years ago
What are the functions of the 5' cap and poly(A ) tail of mature mRNAs in eukaryotes?
 
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6 years ago
Both protect the mRNA from degradation by exonucleases. The 5' cap is also important for the binding of the ribosome at the beginning of translation. The poly(A ) tail is required for efficient export of the mRNA from the nucleus to the cytoplasm.
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