7.81J Systems Biology (Fall 2014, MIT OCW): Lecture 12 - Robustness and Bacterial Chemotaxis

7.81J Systems Biology

7.81J Systems Biology (Fall 2014, MIT OCW). Instructor: Professor Jeff Gore. This course provides an introduction to cellular and population-level systems biology with an emphasis on synthetic biology, modeling of genetic networks, cell-cell interactions, and evolutionary dynamics. Cellular systems include genetic switches and oscillators, network motifs, genetic network evolution, and cellular decision-making. Population-level systems include models of pattern formation, cell-cell communication, and evolutionary systems biology. (from ocw.mit.edu)

Lecture 12 - Robustness and Bacterial Chemotaxis

In this lecture, Prof. Jeff Gore continues his discussion of bacterial chemotaxis, or how bacteria find food. The principle is a biased random walk of runs and tumbles, and is shown to display perfect adaptation.

Go to the Course Home or watch other lectures:

Lecture 01 - Introduction to the Class and Overview of Topics

Lecture 02 - Input Function, Michaelis-Menten kinetics, and Cooperativity

Lecture 03 - Autoregulation, Feedback and Bistability

Lecture 04 - Synthetic Biology and Stability Analysis in the Toggle Switch

Lecture 05 - Oscillatory Genetic Networks

Lecture 06 - Graph Properties of Transcription Networks

Lecture 07 - Feed-forward Loop Network Motif

Lecture 08 - Introduction to Stochastic Gene Expression

Lecture 09 - Causes and Consequences of Stochastic Gene Expression

Lecture 10 - Stochastic Modeling

Lecture 11 - Life at Low Reynolds Number