In 1958, Matthew Meselson and Frank Stahl published the “most beautiful experiment” in biology, where they demonstrated that DNA undergoes semi-conservative replication. In this video, Youreka Science describes the experiments that led to this discovery and why understanding how DNA replicates is so important. This video is a complement to Matthew Meselson’s iBiology Discovery talk, where Meselson recalls the events that led him to meet Frank Stahl and to plan and execute these experiments.
Frank Stahl received his PhD at the University of Rochester, where he studied genetic recombination in phage. He performed postdoctoral studies at Caltech, during which he completed the famous Meselson-Stahl experiment, and joined the faculty at the University of Oregon in Eugene in 1959. He is now an emeritus faculty member who enjoys teaching and… Continue Reading
Youreka Science was created by Florie Mar, PhD, while she was a cancer researcher at UCSF. While teaching 5th graders about the structure of a cell, Mar realized the importance of incorporating scientific findings into classroom in an easy-to-understand way. From that she started creating whiteboard drawings that explained recent papers in the scientific literature… Continue Reading
Dr. Meselson has made important contributions to the areas of DNA replication, repair and recombination as well as isolating the first restriction enzyme. Currently, he is Professor of Molecular and Cellular Biology at Harvard University, where his lab studies aging in the model organism bdelloid rotifers. Meselson is also a long-time advocate for the abolition… Continue Reading