| Termination of transcription |
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| termination may be loosely specified for RNAP II |
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| the 3' end of the mature mRNA is generated by |
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| cleavage followed by polyadenylation |
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| the sequence AAUAAA is often found just 5' to the |
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| cleavage
site |
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| usually about 200 A's are added to the mRNA |
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| histone mRNA's are not polyadenylated |
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