By calculating the recombination frequencies, we may determine whether or not a gene is assorting independently.
When genes are found on various chromosomes, they assort independently and have a Mendelian pattern of inheritance.
The outcome of the dihybrid test cross can indicate whether or not the gene is assorting independently.
The traditional Mendel dihybrid test crosses heterozygous dominant and recessive (homozygous) phenotypes to get four distinct phenotypes in the ratios 1:1:1:1.