Definition
Max Delbrück (1906–1981) was a German-American biophysicist who made significant contributions to the study of molecular biology. He is known for his research on bacteriophages (viruses that infect bacteria) and his work on the mechanisms of gene replication and mutation. Delbrück's research helped lay the foundation for modern genetics. Think of him as one of the key architects of our understanding of DNA and heredity. He changed our understanding of life itself.