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Molecular Basis of Inheritance - Introduction to Biology - Lecture Slides

Slides, Biology

Post: January 18th, 2013
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These are the lecture slides of Introduction to Biology. Key important points are: Molecular Basis of Inheritance, Hereditary Material, Griffith Experiment, Double Helix, Strand Complementarity, Antiparallel Strands, Meselson-Stahl Experiment, Semiconservative DNA Replication
These are the lecture slides of Introduction to Biology. Key important points are: Molecular Basis of Inheritance, Hereditary Material, Griffith Experiment, Double Helix, Strand Complementarity, Antiparallel Strands, Meselson-Stahl Experiment, Semiconservative DNA Replication
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Contents
Chapter 16: The Molecular Basis of Inheritance Docsity.com The Hereditary Material  Chromosomes consist of both DNA and Protein  DNA was discovered before its role in heredity was understood  People had a sense that chromosomes embodied inheritance before they understood that DNA was the hereditary material  People did not want to believe that DNA was the hereditary material since it is not complex enough  Instead, people believed that proteins must be the hereditary material—they were wrong  Transformation (I.e., Griffith’s experiment, which is mediated by DNA) was discovered before it was understood that it was mediated by DNA Docsity.com The Double Helix Strand complementarity Strand polarity Antiparallel strands Docsity.com Meselson-Stahl Experiment (1957) Docsity.com Semiconservative DNA Replication Docsity.com Nucleotide Incorporation Pyrophosphate hydrolysis powers nucleotide addition 3’ OH Docsity.com Lagging & Leading Strands ~100-200..

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