Genetics: Analysis and Principles 5th Edition by Robert Brooker

تمرين 1

As mentioned in solved problem S2, origins of transfer can be located in many different locations, and their direction of transfer can be clockwise or counterclockwise. Let's suppose a researcher conjugated six different Hfr strains that were thr + leu + ton s str r azi s lac + gal + pro + met + to an F strain that was thr leu ton r str s azi r lac gal pro met and obtained the following results:

a.
Draw a circular map of the E. coli chromosome and describe the locations and orientations of the origins of transfer in these six Hfr strains.