Calculate the observed mutation frequency and percent from mutant and total colony or cell counts.
| Frequency | – |
| Percent | – |
Use this calculator to obtain the observed frequency of mutants in a plate or culture from two counts. Enter how many mutants you scored and the total number of colonies or cells scored. This is an observed frequency in a sample, not a per-generation mutation rate, which needs the history of the population.
The calculation is: frequency = mutants ÷ total. Percent is that frequency × 100. Total must be at least 1. Mutants cannot exceed the total count.
Mutant count: How many mutant colonies or cells you counted.
Total count: How many colonies or cells you scored in total, mutants included.
Frequency: Mutants as a fraction of the total (0 to 1).
Percent: The same frequency expressed as a percentage.
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