For any two genes located in the same autosome, the frequency of recombination has an upper limit of 50%.

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This is because the maximum frequency of recombination is achieved when the genes are located at opposite ends of the chromosome, and during meiosis, there is a 50% chance that the homologous chromosomes will align in a way that results in a cross-over event between the two genes. However, if the genes are located very close together on the same chromosome, the frequency of recombination may be much lower, or even zero.

For Any Two Genes Located in the Same Autosome, the Frequency