Several Hfr strains derived from the same F+ strain donate the following genes to an F- strain in the order given.
Hfr strain first last
1 Q A T E Z
2 P C D B S
3 Z Y R S B
4 A Q P C
5 S R Y Z E
(a) Determine the order of genes on the original chromosome.
(b) On the map you drew for (a), give the location (using the numbers) and orientation (using arrowheads) of the F factors.