Sample Preparation Reagents Stratagene offers a full suite of nucleic acid isolation products to suit your application. Our patented SideStep™ II QRT-PCR products allow you to skip RNA purification altogether and proceed directly to a real-time QRT-PCR amplification from cells, saving you valuable research time and money. This method minimizes sample loss, making it ideal for high-throughput sample processing and screening. Our highly popular, efficient and effective Absolutely RNA® product line delivers intact, pure, high-quality total RNA and mRNA for every application. These complete kits incorporate DNase treat- ment for the complete removal of genomic DNA. For DNA, we offer genomic DNA purification kits that allow for a wide range of sample inputs, such as tissue, cultured cells, and whole blood, and DNA extraction kits for PCR and plasmid DNA isolation and purification.