Lawrence Bragg is the director of the Cavendish lab and one of the founders of crystallography. His personality conflicts with Crick eventually lead to his decision to put a stop to Watson and Crick's DNA research. The older professor allows the King's College group to claim the DNA project and forces Watson and Crick to concentrate on other matters at the Cavendish lab.
Erwin Chargaff is an Austrian-born biochemist conducting his research at Columbia University in New York. He is an expert in DNA and the first to propose the correct pairing of the four base molecules of its structure: adenine pairing with thymine and guanine pairing with cytosine. When Watson and Crick learn of this theory, they begin to explore it, too. Eventually, they discover how to make a DNA model that.....
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