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Cultivated some 2,900 pea plants, discovering genes and basic hereditary patterns
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Crossed flowers with certain traits, resulting in numbers different than Mendel's, discovering linked genes.
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Crossed simple fruit flies, discovering Recombinants among heredity (sex linkage)
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Studied metabolic disorders, publishing the "one gene, one enzyme" Hypothesis
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Combined deadly and harmless pneumonia, discovering DNA's role in the cell
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Grew bread molds, determing that one gene does in fact specify the production of one enzyme
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Tested and pictured DNA, creating Chargaffs rules, including G=C and A=T
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Experimented with DNA and Protein, determining that the DNA transfered the information from the cells
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Took the first picture of DNA
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Studied many of the findings of previous scientists, concluding that DNA formed a double helix
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Broke down DNA, discovering the genetic code for RNA
