Geometry and Topology Seminar: Topological aspects of the functionality of DNA.
12 December 2013 13:00 in CM221
Since the double helical structure of DNA was discovered in 1953, decades of research have revealed many other fascinating phenomena about of the molecule of life. In 1965, Jerome Vinograd discovered that DNA in the polyoma virus is naturally found in a circular form. This work opened the gates to a new interdisciplinary field that studies the topology of DNA and its biological implications for the functionality of the molecule.
In this talk I will discuss topological questions (and answers) that arise when considering the naturally occurring DNA of three different unicellular organisms: bacteria, ciliates and trypanosomes.