Mature transcript
Products of post-transcriptional processing of primary transcript. Post-transcriptional RNA modifications include splicing, polyadenylation, and RNA editing.
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The term mRNA is used only for a mature transcript with polyA tail and with all introns removed, rather than the primary transcript in the nucleus.
The splicing of introns present within the transcribed region is a modification unique to eukaryotes; alternative splicing mechanisms can result in mature transcripts from the same gene having different sequences and thus coding for different ...
 See also: DNA, Primary transcript, Trans, Primer, RNA
  
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