Before revision: This led to 1000 progeny of the following phenotypes: ABC: 244 (parental genotype, shows no recombination) ABc: 71 (recombinant between B and C) AbC: 23 (double recombinant) Abc: 152 (recombinant between A and B) aBC: 148 (recombinant between A and B) aBc: 27 (double recombinant) abC: 79 (recombinant between B and C) abc: 236 (parental genotype, shows no recombination) From these numbers it is clear that the B/b locus lies between the A/a locus and the C/c locus.
After revision: This led to 1000 progeny of the following phenotypes: ABC: 244 (parental genotype, shows no recombination) ABc: 81 (recombinant between B and C) AbC: 23 (double recombinant) Abc: 152 (recombinant between A and B) aBC: 148 (recombinant between A and B) aBc: 27 (double recombinant) abC: 89 (recombinant between B and C) abc: 236 (parental genotype, shows no recombination) From these numbers it is clear that the B/b locus lies between the A/a locus and the C/c locus.