This Reagent is designed to facilitate quick and easy extraction of genomic DNA from samples such as plant and animal tissue, cultured cells, bacteria, and yeast. After homogenizing tissue and cells in DNAiso reagent, ethanol is added to the homogenate to precipitate the genomic DNA. Genomic DNA extracted with DNAiso reagent can be used in procedures such as PCR, Southern blotting, and preparation of genomic libraries.