Hot answers tagged rna
precursor miRNA is ~70mer RNA with a stem loop structure. It is cleaved by dicer to generate one or two mature miRNAs (from one or both the 'arms' of the stem ; called 3p and 5p which are ~22nt long). Refer to this review. (It is an old one and some facts might have changed, but the basics are there.) Yes, there can be different precursors giving rise to ...
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