Dna expts griffith 40558

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Unformatted text preview: Griffith Experiment “S” cells – smooth (pathogenic); “R” cells – rough (non‐pathogenic) Mixture of heat‐killed S Living S cells Living R cells Heat‐killed S cells (control) cells and living R cells (control) (control) RESULTS Mouse dies Mouse healthy Mouse healthy Mouse dies Living S cells Hershey & Chase Experiment Phage Bacterial cell Batch 1: radioactive sulfur (35S) Radioactive protein (phage coat) DNA Empty protein shell Radioactivity (phage protein) in liquid Phage DNA Centrifuge Pellet (bacterial cells and contents) Radioactive DNA Batch 2: radioactive phosphorus (32P) Radioactive DNA Centrifuge Radioactivity Pellet (phage DNA) in pellet...
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