About the Authors
- Gilles Charvin, Eric D. Siggia
- Center For Studies in Physics and Biology, The Rockefeller University, New York, New York, United States of America
- Frederick R. Cross
- The Rockefeller University, New York, New York, United States of America
The authors have declared that no competing interests exist.
Conceived and designed the experiments: ES GC FC. Performed the experiments: GC. Analyzed the data: ES GC FC. Wrote the paper: ES GC FC.