The DNA is then precipitated by including isopropanol on the significant-focus salt Alternative. This forces the large genomic DNA molecules outside of solution, even though the smaller RNA fragments continue being soluble. The insoluble DNA is then pelleted and divided from salt, isopropanol and RNA fragments by using centrifugation. QIAGEN https://rna-beads15825.blogdun.com/30251463/what-does-viral-rna-isolation-kit-mean