DNA Base Structure and Apoptosis (image) Institute for Basic Science Share Print E-Mail Caption Fig. 2a: DNA base structure. Fig. 2b: The process of programmed cell death a.k.a apoptosis. Credit Institute for Basic Science (IBS) 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.