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MicroRNA Activity

Meaning

MicroRNA Activity refers to the regulatory function of small, non-coding RNA molecules, typically 19-25 nucleotides in length, which primarily act to fine-tune gene expression after transcription. These molecules do not code for proteins themselves but instead bind to specific messenger RNA (mRNA) molecules, leading to their degradation or translational repression. This activity is a crucial layer of post-transcriptional control over the entire endocrine system.