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Published byMaryann Ray Modified over 9 years ago
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Discover Biology, 5 th Ed. C14: DNA and Genes
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What is the hereditary material? Chromosomes – DNA – Protein Genes – Located on chromosomes Source of Inherited Traits – ? DNA – ? Protein
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Frederick Griffith & pneumococcus Two strains of pneumococcus bacteria – Harmless R strain – Lethal S strain Heat-killed S strain to make it harmless Incubated R strain with heat-killed S strain – DNA from S strain transformed R strain – Transformed R strain became lethal
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Hershey-Chase Bacteriophage
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Watson, Crick, Wilkins & Franklin
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DNA Packaging
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DNA to mRNA: Transcription
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Eukaryotic Genetic Expression
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Eukaryotic Transcription Regulation
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Prokaryotic Lac Operon
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Translation of mRNA on Ribosome
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Transcription to Translation
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