Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock ( ) or https://
means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
The data are the number of colonies per Petri plate for all the experiments. The colonies are mutants and are also called revertants (rev)--because the Salmonella mutagenicity assay is a "reverse...
data.gov
An official website of the GSA's Technology Transformation Services