Rosette (3 of 3) (video) University of Cambridge Loading video... Caption The mouse embryo's own stem cells organize themselves into a rosette-like arrangement as a pre-requisite for laying the foundations for the body when the embryo would implant into the uterus. Credit Magdalena Zernicka-Goetz and Ivan Bedzhov. Usage Restrictions Can be used only with credit info. 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.