corn with toxin vs. toxin and antidote (IMAGE) Cold Spring Harbor Laboratory Caption TPD ensures certain traits are always passed down by poisoning some reproductive cells with a toxin and giving the antidote to others. Left: Semi-sterile corn with only the toxin. Right: Viable corn with both the toxin and the antidote. Credit Martienssen lab/Cold Spring Harbor Laboratory Usage Restrictions Attribution required License Original 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.