Mitochondria are descended from bacteria that invaded cells 15 billion years ago and never left The mitochondrial genome is like that of bacteria circular doublestranded DNA, only smaller And just like the genome of bacteria, RNA can be made from both strands of mitochondrial DNA – which results in the formation of dsRNARNAi occurs naturally, through the production of nuclearencoded premicroRNA (premiRNA), and can be induced experimentally, using short segments of synthetic doublestranded RNA (dsRNA) The synthetic dsRNA employed is typically either a small hairpin RNA (shRNA) or aSO RNA is often double stranded, and basically it acts like RNA, there is no special result I personally think that viral RNA genomes are kind of a "fossil" of how things were done just before LUCA, the Last Universal Common Ancestor DNA seems to be a rather late development, but all cells have DNA genomes today so DNA began to be synthesized some time before LUCA But the ancestral form is probably a double stranded RNA
A Facile Method For The Removal Of Dsrna Contaminant From In Vitro Transcribed Mrna Molecular Therapy Nucleic Acids
