Recombination Frequency Calculator

This calculator estimates the recombination frequency between two linked genes based on the number of recombinant offspring and total offspring in a dihybrid cross.

Input Parameters

Calculation Results

Calculation Formula

Recombination Frequency = (Number of Recombinant Offspring / Total Offspring) × 100%

Where:
- Number of Recombinant Offspring: Offspring that show new combinations of traits
- Total Offspring: Total number of offspring in the cross

Recombination Frequency Calculator Usage Guide

Learn how to use the Recombination Frequency Calculator and its working principles

How to Use This Calculator

  1. Enter the total number of offspring from your dihybrid cross in the "Total Offspring" field.
  2. Enter the number of recombinant offspring (those that show new combinations of traits) in the "Recombinant Offspring" field.
  3. Click the "Calculate" button to compute the recombination frequency.
  4. The result will be displayed as a percentage in the "Recombination Frequency (%)" field.

Understanding Recombination Frequency

Recombination frequency is a measure of genetic linkage between two genes. It represents the proportion of offspring that show new combinations of traits not seen in the parental generation. A higher recombination frequency indicates that the genes are farther apart on the chromosome, while a lower frequency suggests they are closer together.

Example

Suppose you perform a dihybrid cross and observe 100 total offspring, out of which 30 show recombinant phenotypes. The recombination frequency would be calculated as:

(30 / 100) × 100% = 30%

Important Notes

  • This calculator assumes a simple Mendelian inheritance pattern and random assortment of chromosomes.
  • For accurate results, ensure your sample size is large enough to provide reliable estimates.
  • The recombination frequency can be used to create a genetic map, which helps in understanding the relative positions of genes on a chromosome.