1.

Three enzymes are required in the metabolism of lactose in E coli , name the enzyme required for entry of lactose in the cell.

Answer»

abolism of lactoserequires two enzymes: a permease to transport lactoseinto the cell and β-galactosidase to CLEAVE the lactose molecule to YIELD glucose and galactose (Figure 14-4). ... All THREE genes are transcribed into a single, multigenic messenger RNA (MRNA) molecule.



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