Watson and crick
Meselson and stahl experiment...
Meselson Bio and CV
Born May 24, 1930 in Denver, Colorado, Dr. Meselson received the Ph.B. degree from the University of Chicago in 1951 and the Ph.D. from the California Institute of Technology in 1957.
Meselson and stahl experiment diagram
He was Assistant Professor of Physical Chemistry at CalTech until he joined the Harvard faculty in 1960.
Dr. Meselson has conducted research mainly in molecular genetics. He invented an important ultracentrifugal method for analyzing the densities of giant molecules.
He and his colleague Franklin Stahl then used it to show that DNA molecules replicate semi-conservatively in dividing cells. Subesquently, together with Jean Weigle, Meselson showed that genetic recombination results from the splicing of DNA molecules, and later, with Sydney Brenner and Francois Jacob demonstrated the existence of messenger RNA. He and his students then demonstrated the enzymatic basis of host-controlled restriction of DNA and predicted and demonstrated the methyl-directed repair of mismatch
