Blood Progenitors (IMAGE) Boston Children's Hospital Caption Sugimura, Daley and colleagues made a mix of blood progenitor cells (shown here) and blood stem cells. Both types of cells are able to generate multiple kinds of blood cells (red blood cells, lymphocytes, etc.) Credit Courtesy Daley Lab 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.