Draw map of f+ strain indicating positions of all genes

Reference no: EM1396691

Five Hfr stains A through E are derived from a single F+ strain of E. coli. The following chart shows the entry time of the first five markers into an F- strain when each is used in an interrupted-conjugation experiment:
A: mal+ (1), str^s (11), ser+ (16), ade+ (36), his+ (51)
B: ade+ (13), his+ (28), gal+ (38), pro+ (44), met+ (70)
C: pro+ (3), met+ (29), xyl+(32), mal+ (37), str^s (47)
D: pro+ (10), gal+ (16), his+ (26), ade+ (41), ser+(61)
E: his+ (7), gal+ (17),pro+ (23), met+ (49), xyl+ (52)

a.) Draw a map of the F+ strain, indicating the positions of all genes and their distnaces apart in minutes.
b.) Show the intersection point in orientation of the F plasmid in each Hfr strain
c.) In the use of each of these Hfr strains, states which allele you would select to obtain the highest proportion of Hfr exconjugants

Reference no: EM1396691

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