state the role of transposons in silencing of mRNA in eukaryotic cells.

Transposons also called as jumping genes are the gene sequences present in the genome of eukaryotic cells that can jump to different locations within a genome. Transposons that replicate via  RNA intermediate are called retrotransposon. Retrotransposons are the types of transposons that copy themselves to RNA and then back to DNA  so that that may integrate back to the genome. The RNA formed from these retrotransposons combine with the mRNA due to complementarity and forms dsRNA molecule and prevents the translation of the mRNA called gene silencing.