Answer:
The order of genes is- dp-cl-ap
Explanation:
The genes a be mapped on chromosome on the basis of the recombination frequency as the recombination shows that is the genes are linked or not. In genetic mapping, 1 per cent recombination frequency is considered as 1 cM or map distance.
In the given question, the three gene distance are provided on the basis of which the gene can be mapped in the following manner:
1. Take the higher value of gene distance that is 42 m.u and plot them on the line,
2. now place second-highest value on the line that is 39 m.u.
3. The gene will be arranged in the order of dp-cl-ap.
4. dp--³---cl-----------³⁹---------------------ap.
Thus, dp-cl-ap is correct.