L'Acid ribonucleïc messatgèr (abreujat ARNm) qu'ei un acid ribonucleïc on l'informacion genetica marcada sus l'ADN b'ei transcrivuda entà poder estar tradusida en proteïnas.
![Thumb](http://upload.wikimedia.org/wikipedia/commons/thumb/b/ba/MRNA_structure.svg/640px-MRNA_structure.svg.png)
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