Related Experiment Video
Updated: Sep 24, 2025

Microbial Communities in Nature and Laboratory - Interview
Published on: May 28, 2007
From genes to modules, from cells to ecosystems
Tal Keidar Haran1, Leeat Keren2
1Department of Pathology, Hadassah Medical Center, Jerusalem, Israel.
Abstract:
Twenty years ago, molecular biology transitioned from predominantly studying genes as isolated elements to viewing them as part of complex modules, giving rise to the field of systems biology. This transition was made possible by technological advances that allowed to simultaneously measure the expression levels of thousands of genes in a single experiment and drove a shift toward analyses identifying gene sets, modules, and pathways involved in a biological process of interest. Today we are excitingly facing a similar turning point in cell biology, where single-cell technologies have enabled us to approach cells as cellular modules.
Related Concept Videos
Types of Genetic Transfer Between Organisms
Export of Mitochondrial and Chloroplast Genes
Global Regulatory Systems
Genome Size and the Evolution of New Genes
Overview of Cell Signaling
Cells respond to many types of information, often through receptor proteins positioned on the membrane. For example, skin cells respond to and transmit touch...
Evolutionary Relationships through Genome Comparisons

