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Through his work on pea plants, discovered the fundamental laws of inheritance.
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Isolated "nuclein," DNA with associated proteins, from cell nuclei. He was the first to identify DNA as a distinct molecule.
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Showed us that bacteria can distinctly change their function and form through transformation
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Isolated DNA as the material of which genes and chromosomes are made.
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Discovered that the proportions of bases in DNA depend on the species the DNA comes from
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X-ray diffraction images of DNA
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Determined that a protective protein coat was formed around the bacteriophage, but that the internal DNA is what conferred its ability to produce progeny inside a bacterium
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Determined the double-helix structure of DNA,
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Independently mapped and sequenced human DNA.
