Consider that there are five genes p, q, x, y, z. Determine the sequence of genes on the chromosomes if the cross-over percentage between linked genes is as follows:
1) p and y = 25%, 2) p and z = 15%, 3) p and q = 15%, 4) y and x = 10%, 5) z and q = 30%, 6) z and y = 10%.