b. Recombination in the aro-arg region is represented by two genotypes: aro+ arg‾ and aro‾ arg+. The recombination frequency is:
Recombination in the ery-aro region is represented by three genotypes: arg+ aro‾, arg‾ aro‾, and arg‾ aro+. Recall that the DCO must be counted twice. The recombination frequency is:
c. The ratio of the size of the arg-to-aro region to the size of the ery-to-arg region is 28:10. or 2.8:1.0