Development of the first rapid DNA sequencing techniques by Frederick Sanger
By the early 1970s, molecular biologists had made unbelievable advances. They could discover the genetic code and tell the sequence of amino acids in proteins. However, more developments in the field were hindered by the inability to easily read the specific nucleotide sequences of DNA. In 1943, Cambridge scientist Frederick Sanger started working for A. C. Chibnall, to identify the free amino groups in insulin. Having done this work, he became the first to order the amino acids and obtain a protein sequence, for which he later won a Nobel Prize. He concluded that if proteins were ordered molecules, then the DNA that makes them must have an order as well. In 1962,