RNA干扰（RNAi）是细胞内由双链RNA请导降解与其配对的特定mRNA的过程。细胞内双链RNA在酶的作用下，形成20-25碱基大小的小干扰RNA（siRNA......

　　MicroRNAs are well known to mediate translational repression and mRNA degradation in the cytoplasm.Various microRNAs......