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6 Cards in this Set
- Front
- Back
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Frederick Griffith
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S-strain bacteria could transform R-strain bacteria to kill a mice. (1928)
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Oswald T. Avery
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Isolated "transforming principle" from S-strain using alcohol precipitation. Determined that just the transforming principle along with R-Bacteria was sufficient for transformation. (1931)
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Colin Macleod and Maclyn McCarty
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Determined transforming principle was DNA. Achieved by fractionating the transforming principle and determined which macromolecule was responsible for transformation. (1944)
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Alfred Hershey and Martha Chase
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DNA is the molecule responsible for viral replication. Worked with bacteriophages and radio-labeled proteins. Location of labeled components was the key point here! Sulfur only found in some amino acid r groups and Phosphorus only found in DNA and not Proteins. (1952)
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Watson and Crick
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Determined 3-D structure of DNA. (1953)
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Meselson and Stahl
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Confirmed semiconservative replication using heavier density Nitrogen and lighter density nitrogen in bacterial DNA replication.
(1958) |
