| 单词 | mRNA Precursor |
| 释义 | mRNA Precursor《英文msh词典》mRNA Precursor [入口词] mRNA Precursor [主题词] RNA Precursors [英文释义] RNA transcripts of the DNA that are in some unfinished stage of post-transcriptional processing (RNA PROCESSING,POST-TRANSCRIPTIONAL) required for function. RNA precursors may undergo several steps of RNA SPLICING during which the phosphodiester bonds at exon-intron boundaries are cleaved and the introns are excised. Consequently a new bond is formed between the ends of the exons. Resulting mature RNAs can then be used; for example,mature mRNA (RNA,MESSENGER) is used as a template for protein production. |
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