Poison and Antidote (IMAGE) Stowers Institute for Medical Research Caption wtf4 is a poison-antidote meiotic driver. Wtf4 antidote (pink) is spore-specific and wtf4 poison (blue) is trans-acting. Credit Image courtesy of María Angélica Bravo Núñez and Nicole Nuckolls. 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.