Comparison of morphological difference (IMAGE) Stowers Institute for Medical Research Caption Comparison of morphological difference between a normal seven-day-old sea anemone (left) and a sea anemone lacking a required segment polarity gene (right). Credit Stowers Institute for Medical Research Usage Restrictions No restrictions. License Public Domain 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.