(1) Adèle Mennerat associate professor of evolutionary ecology at the University of Bergen in her research article entitled “How to Deal With PCR Contamination in Molecular Microbial Ecology” (2014) asserts that the addition of DNase in PCR mixes can reduce the number of contaminants in PCR mixes. (2) Mennerat provides evidence by performing PCR techniques with a known contaminated PCR mix, but with the addition of DNase that is heat deactivated prior to replication, and shows the reduction in contaminants. (3) Mennerat purpose is to create a solution to PCR contamination in order to improve PCR purity and fidelity. (4) The intended audience is other lab scientist that work with PCR