Biology, asked by Rajritik, 1 year ago

state the roles of transposons in silencing mRNA in eukaryotic cell

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Answered by hitrahangdale
1
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. These cause RNA interferance (RNAi) by silencing specific sequence of DNA and is used as method of cellular defense by all eukarypotic cells.
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 it 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.
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