Perutz, yeah, not a technical level, he was a physical sort of chemist, you see, and x-ray crystallography.So, you know, I talked to him and told him what I was doing. He was interested or not, but I couldn’t understand his work, really. It was very mathematical and physical. And I’m more on the chemical side. But he was a very good leader, Perutz. Well, if you can tell me who developed that sequencing thing, the cloning technique….not a famous person… Messing, Messing.

Frederick Sanger, OM, CH, CBE, FRS (born 13 August 1918) is an English biochemist and twice a Nobel laureate in chemistry. In 1958 he was awarded a Nobel prize in chemistry "for his work on the structure of proteins, especially that of insulin". In 1980, Walter Gilbert and Sanger shared half of the chemistry prize "for their contributions concerning the determination of base sequences in nucleic acids". The other half was awarded to Paul Berg "for his fundamental studies of the biochemistry of nucleic acids, with particular regard to recombinant-DNA".

He is the fourth (and only living) person to have been awarded two Nobel Prizes, either wholly or in part.

http://en.wikipedia.org/wiki/Frederick_Sanger