Experiment 3. (Frequency/Distance between T and S)
Determine the recombination frequency for the genes controlling Tallness and Snout:
| 40 tall-upturned snout | = 40% | expected |
| 42 dwarf-downturned snout | = 42% | expected |
| 9 dwarf-upturned snout | = 9% | recombinant |
| 9 tall-downturned snout | = 9% | recombinant |
Total = 100%
Therefore this recombination frequency between genes T and S is 18%
One can determine the relative frequency between genes using the percent frequencies as distances.
The Recombinant relationships from experiments 1-3 are:
Exp. 1 T-A = 12 map units Exp. 2 A-S = 5 map units Exp. 3 T-S = 18 map units
An arrangement that fits the data would be:
