The mature miRNA is incorporated into an RNA-induced silencing complex that binds to a target messenger RNA (mRNA).

成熟microRNA与目标mRNA结合，形成了RNA诱导的基因沉默复合体。

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Messenger RNA (mRNA) -- an RNA molecule that serves as a template for protein synthesis.

信使核糖核酸-- 核糖核酸的一种，当蛋白质合成中当作模板指定讯息的转译。

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These trigger the degradation of another type of RNA molecule known as messenger RNA (mRNA), "down-regulating" the gene.

BBC: NEWS | Science/Nature | Salvage prospect for 'junk' DNA