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Explain the expression of operon genes in
. coli growing in lactose containing culture medium.
Answers (1)
In the presence of an inducer, lactose, the repressor is inactivated, by interaction with the inducer and this allows RNA polymerase access to the promoter and transcription proceeds. Then lac mRNA is transcribed, ß galactosidase, permease, transacetylase is synthesised
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