Molecular Genetics of Prokaryotes Problem Set
Problem 4: Exchange of genetic information between bacteria
Cells of an E. coli strain that are trp lac Z met bio were mixed with cells of an E. coli strain that are trp lac Z met bio and cultured for several hours. Then cells were removed, washed, and transferred to minimal media containing lactose as the only sugar source. A few cells were able to grow on minimal media with lactose, and formed colonies. How did these few cells become trp lac Z met bio?
University of Arizona
Updated: July 15, 1999
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