Core Transcriptional-Translational Feedback Loop of Clock Genes and Proteins (image) Institute of Transformative Bio-Molecules (ITbM), Nagoya University Share Print E-Mail Caption This feedback loop oscillates with a 24-hour cycle. The yellow circle represents the cell nucleus. Credit ITbM, Nagoya University Usage Restrictions None 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.