Question

how are the structural gene inactivatedin lac operon in e.coli?explain

Answer 1

Answer:

The lac operon in E. coli has a promoter site (p), regulatory site (i) and operator site (o). ... The regulatory gene codes for a repressor protein and repressor protein has high affinity for the operator region and prevents RNA polymerase from transcribing the structural gene. Thus, the lac operon gene is inactivated