Homogenized samples combined with magnetic beads; beads are washed with clean buffers, and RNA is then eluted off the beads Generally, the extraction or purification strategies or kits readily available in the market can only allow the extraction of one kind of nucleic acid, either DNA or RNA, or protein https://www.facebook.com/NewTechFind/posts/pfbid02bCsrCGJtTg2r1aCQEoachZh9MmkmeiEeXcTXZBDji5BdLR4ZWcPQtKHvAsjvNUEBl