Further research on the Watson - Crick model yielded theoretical advances that were reflected in new capacities to manipulate DNA .
These concepts were embodied in the model of DNA produced through the combined efforts of James Watson , Francis Crick , and Rosalind Franklin .
Further research on the Francis Crick     model yielded theoretical advances that were reflected in new capacities to manipulate DNA .
These concepts were embodied in the model of DNA produced through the combined efforts of James Watson , Francis Crick , and Rosalind Franklin .