Esther Lederberg (1922 - 2006 )
Dr. Esther Lederberg discovered the lambda phage and pioneered the field of bacterial genetics. It was during the completion of her doctorate that she made the lambda phage discovery and ultimately, she was able to show that the lambda phage’s behavior differs from other viruses. The lambda phage continues to this day to be an integral tool in molecular biology. Dr. Lederberg also invented the replica plating technique, which allowed the replication of microorganisms in the original spatial pattern of the colonies.