How RNAi Works

Double-stranded RNA

The presence of double-stranded RNA is rare in a cell.

The RNA interference process begins with the presence of a long double-stranded RNA molecule.

The double-stranded RNA molecule might have been introduced by a researcher, or it might be the product of a virus or a jumping gene.

A double-stranded R-N-A molecule and 3 strands of m-R-N-A.
RNAi begins with a long double-stranded RNA molecule.