Need help figure out the order of GENES.
Okey here is the info
Bacterial cells of genotype pur- pro+ his+ were transduce with P1 bacteriophage grown on bacteria of genotype pur+ pro- his-. Transductants containing pur+ were selected and tested for the unselected markers pro and his. The number of pur+ colonies with each of the four genotype were as followed:
pro+ his+ 102
pro- his+ 25
pro+ his- 160
pro- his- 1
what is the gene order?