DNA Strand Displacement (image) University of California - San Diego Share Print E-Mail Caption Schematic of DNA strand displacement on the biosensor chip. A perfect match DNA strand (green) binds to the normal strand (red) of the DNA probe and displaces the weak strand (black). Credit Lal Research Group at UC San Diego Usage Restrictions Please credit: Lal Research Group at UC San Diego Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.