The DNA is then precipitated by incorporating isopropanol into the higher-concentration salt solution. This forces the large genomic DNA molecules out of solution, whilst the smaller RNA fragments stay soluble. The insoluble DNA is then pelleted and separated from salt, isopropanol and RNA fragments via centrifugation. To be able to https://magneticbeadscellisolatio04714.wikitron.com/950466/the_smart_trick_of_isolation_of_rna_from_tissue_that_nobody_is_discussing