Concept 20 A half DNA ladder is a template for copying the whole.
Frank Stahl is Emeritus Professor of Biology at the University of Oregon. He maintains a research interest in characterizing and comparing the genetic recombination systems of yeast and coliphage. Matt Meselson is a Professor in the Department of Molecular and Cellular Biology at Harvard University. His laboratory studies sexual reproduction and genetic recombination, and how and why they are maintained in evolution. Arthur Kornberg was Professor Emeritus in the Department of Biochemistry at Stanford University. Dr. Kornberg investigated DNA replication.
- Explaining density gradient centrifugation.
- The three models of DNA replication - semi-conservative, conservative, and dispersive - and whether bias played a role in designing/interpreting the experiment.
- How Meselson came to read the Watson and Crick paper, then think about ways to experimentally test how DNA replicates.