Arabidopsis Root (IMAGE) Duke University Caption The green glowing center of this Arabidopsis root contains a protein that helps transform immature precursor cells into some of the specialized cells that make up the plant's root tip. Researchers are trying to figure out how a plant or animal makes different cell types from the same set of genetic instructions. Credit Photo by Erin Sparks, Duke University 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.