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10 Cards in this Set
- Front
- Back
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TH Morgan
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Drosophila (polytene chromosomes), showed genes exist as parts of chromosomes; sex linked genes and mutations
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Griffith
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DNA transformation of nonpathogenic bacteria into pathogenic bacteria through pathogenic DEAD bacteria
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Avery
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Separated cell contents, identified DNA as transformer
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Hershey and Chase
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Showed that DNA material is the genetic material of virus; tagged DNA and protein w/ radioactive isotope, saw which entered bacteria
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Chargaff
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variable base composition--->genetic variability through nucleotide sequence; base pairings A and T, C and G
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Watson and Crick
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DNA double helix structure, phosphate-sugar backbone, H-bonded bases
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Rosalind Franklin
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Xray Crystallography
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Meselson and Stahl
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Tested semi-conservative model v. conservative v. dispersive; centrifuged weighted isotopes
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Garrod
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Black urine; suggested genes dictate phenotypes through genes that catalyze chemical rxns
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Beadle and Tatum
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created mutations in bread mold, put in minimal culture plus one essential ingredient to see which would survive
----> one gene-one enzyme hypothesis |
