DNA bands (IMAGE) Experimental Biology Caption Researchers performed PCR amplification on extracted coral DNA mixed with primers for four genes related to sound emission or reception. If a gene is present, it will be amplified by PCR and can be detected by agarose gel electrophoresis as DNA bands of a specific size. The DNA bands showed probable presence of TRPV and FOLH-1 genes in coral DNA. Credit Camila Rimoldi Ibanez and James Hawker, South Florida State College Usage Restrictions None License Licensed content 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.