Genetics & evolution · HL
Recombination Frequency Calculator
Enter recombinant and total counts.
Your values
Start with the example or enter your own values. Use a dot for decimals and e for scientific notation.
Calculated locally. No account or input upload.
Result & working
ExampleThe calculator is loading. The worked example is also shown below.
Step-by-step working
The formula
recombination frequency = recombinant/total × 100%
map distance ≈ recombination frequency in cM for short distances
| Symbol | Meaning |
|---|---|
| recombinant | Offspring/gametes with non-parental allele combinations. |
When to use this calculator
Recombination frequencies approach 50% for loci that assort independently or are very far apart.
Worked example
The page opens with these example values. The result below is pre-generated for reference.
- RF = recombinant/total × 100 = 84/500 × 100 = 16.8%
16.8%
Common mistakes
- Identify parental and recombinant classes before summing counts.