324 



( ii\i'i i i< 24 



Q < CD U 



roa 





^K^i 



o o 



FIGURE 24-5. 



Genetic map of E. coli, 



drawn to scale. A key to 



the genetic symbols appears 



in the accompanying chart. The map 



is graduated in one-minute intervals 



(89 minutes total). Markers enclosed 



in parentheses are only approximately 



mapped; the exact sequence of markers 



in crowded regions is not always known. 



(Courtesy of A. L. Taylor and 



M. S. Thoman, 1964. See References.) 



