Video 20: Matthew Meselson, clip 3
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.
how dna replicates, matthew meselson, molecular and cellular biology, genetic recombination, laboratory studies, sexual reproduction, harvard university, watson, evolution
- ID: 16462
- Source: DNALC.DNAFTB
- Download: MPEG 4 Video
The three models of DNA replication - semi-conservative, conservative, and dispersive - and whether bias played a role in designing/interpreting the experiment.
Explaining density gradient centrifugation.
Matthew Meselson and Franklin Stahl invented the technique of density gradient centrifugation and used this to prove that DNA is replicated semi-conservatively.
Franklin Stahl and Matthew Meselson invented the technique of density gradient centrifugation and used this to prove that DNA is replicated semi-conservatively.
Describing his first meeting with James Watson and Matthew Meselson.
Describing how he first met Matthew Meselson.
Sydney Brenner showed that mRNA was the unstable intermediate that carried the message from DNA to the ribosomes.
James Watson and Francis Crick solved the structure of DNA. Other scientists, like Rosalind Franklin and Maurice Wilkins, also contributed to this discovery.
James Watson talks about who he thinks should have won the Nobel Prize in 1962.
Recounting how the seminal "Meselson-Stahl" experiment was only performed 3 times, with one set of results discarded due to mislabelled tubes!