Essential Genetics 6th Edition by Daniel Hartl

تمرين 6

The accompanying gel diagram shows the positions of DNA bands associated with the A , a and B , b allele pairs for two linked genes. On the left are the phenotypes of the parents, and on the right are the phenotypes of the progeny and the number of each observed. Is the linkage phase of A and B in the doubly heterozygous parent coupling or repulsion? What is the frequency of recombination between these genes?