�?Universal—might Be used for each cell and tissue samples from a wide array of sources: mammalian blood, mammalian cell cultures, mammalian tissues, insect, yeast, and bacteria Tissues homogenized in urea lithium to precipitate RNA. Protein is divided from RNA utilizing a phenol-chloroform Answer. RNA is then precipitated with ethanol. one. https://waylontvtsq.wikistatement.com/4242893/isolation_of_serum_plasma_viral_nucleic_acid_fundamentals_explained