Double Helix Experiments

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10 Terms

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Gregor Mendel

Genes exist

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Morgan

Genes are on chromosomes

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Miescher

Found nucleic acid

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Kossel

Finds nitrogenous bases

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Levine

DNA vs RNA

Linkage of nucleotide (sugar, phosphate base)

Tetra nucleotide hypothesis

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Griffith

Transformation

Heat kill IIIs IIR

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Avery, McCarthy, MacCleod

Purify ‘transforming principle’ (looks like DNA)

Enzymes (RNase destroys RNA, DNase, proteinase)

Only DNase stops transformation

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Chargraff

Refute tertanucleotide

Each species has a unique % of AGCT

A=T, G=C

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Hershey and Chase

33p, 35s

DNA vs protein to track bacteriophage reproduction

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Franklin, Watson and Crick