The Method of Loci has been used since ancient times to memorize important information.
The NE-PER Nuclear and Cytoplasmic Extraction Reagent Kit is a reagent-based protocol that enables the stepwise lysis of cells, separation of the cytoplasm from the intact nuclei and then extraction of nuclear proteins away from genomic DNA and mRNA.
DNA extraction is one of the most modern of the biological sciences. It is used to diagnose many medical conditions and can also be used for genetic engineering of both plants and animals. DNA extraction can also be used to gather evidence in a crime investigation. (Byelikova_Oksana/iStock/Getty Images).