Recent advances in biotechnolgy Role of RNA in regulation of gene expression.

Recent studies have shown that
si RNA (short interfering RNA exogenous or endogenous 19 to 25 nt (Nucleotides) has a role in regulating the gene expression. How the 21 nucleotide sequences of RNA have a regulatory function.
It has been reported to have ds RNA form which could split the mRNA and thus influence the gene expression.For detials consult the
Ref: P.DUNOYER, O.VOINNET, Trends Plant Science. 14:643 (2009)