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Scientists

major scientists in the field of biology, especially DNA

Scientist(s)contribution
Watson and Crick discovered the double-helical model foor DNA
Morgan's group showed that genes are located on chromosomes
Hershey and Chase used radioactive sulfur and phosphorus to trace protein and DNA in bacterial cells: determined that DNA, not proteins, are the genetic material
Chargaff analyzed the base composition of DNA and its differences among species, providing further support for DNA as the genetic material
Rosalind Franklin made an X-ray diffraction photo of DNA that inspired Watson and Cricks double-helical structure of DNA
Griffith mixed dead pathogenic cells with living harmless cells and discoverd transformation, also known as horizontal gene transfer
Meselson and Stahl cultured E. coli bacteria and used a die to confirm the semi-conservative model of DNA replication
Beadle and Tatum proved that one gene codes for one polypeptide
Created by: allysav
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