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Frederick Griffin
Griffin experiment with bacterium was the first to reveal the “transforming principle,” which led to the discovery that DNA acts as the carrier of genetic information. -
Griffin's experiments on mice which led to the discovery that DNA acts as the carrier of genetic information.
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Oswald Avery
Oswald and his group discovered DNA was the "transforming principle." When isolated from one strain of bacteria, DNA was able to transform another strain and confer characteristics onto that second strain. DNA was carrying hereditary information. -
Oswald's discovery that DNA was carrying hereditary information.
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Alfred Hershey and Martha Chase
Hershey and Chase discovered that the proportions of bases in DNA depend on the species the DNA comes from. -
Hershey and Chase's discovery that DNA was genetic material.
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Erwin Chargaff
Chargaff was the first to accurately measure nucleotide amounts in DNA. -
Chargaff's nucleotide measurement rule
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Maurice Wilkins and Rosalind Franklin
Wilkins and Franklin worked with x-ray crystalography to find more clues about the DNA structure. -
Wilkins and Franklin discovery of the DNA structure with the x-ray
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James Watson and Francis Crick
Watson and Crick determined the double-helix structure of DNA -
Double helix structure of DNA discovered by Frank and Crick
