21 For E coli strains with the following lac genotypes and

Last updated: 5/14/2023

21 For E coli strains with the following lac genotypes and genotypes on the next page use a plus sign to indicate the synthesis of galactosidase and permease and a minus sign to indicate no synthesis of the proteins Genotype of strain lack lacP laco lacZ lacy lack lacP lacO lacZ lacy lacht lacP laco lacZ lacy lack lacP lacO lacZ lacy lack lack lac0 lor7 lev Lactose absent B Galactosidase Permease Lactose present B Galactosidase Permease