In an E. coli strain 
gene gets mutated and its product can not bind the inducer molecule. If growth medium is provided with lactose, what will be the outcome?
gene will get transcribed
genes will be transcribed
genes will not be translated
Text Solution
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As the product of ' 
' gene binds with the operator region and blocks the transcription and translation of 
and 
genes. It's product is prevented from binding to the operator by attaching it with the inducer. As the inducer can now no more capable of binding with the repressor, thus, in all the cases, operator always gets attached with the repressor thereby preventing the transcription and translation of 
and 
. Even in the presence of lactose, transcription and translation of 
and 
would not occur.
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