In the lactose operon of Escherichia coli, what is the function of promoter
Medium
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b (b)Promoter gene $(p)$ is the actual site of start of transcription and it is the site where $RNA$ polymerase binds to the $DNA$ prior to beginning of transcription.
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A geneticist isolates a gene for a specific traits under study, she also isolate the corresponding $mRNA$. Upon comparison, the $mRNA$ is found to contain $1,000$ fewer bases than the $DNA$ sequence. Did the geneticist isolate the wrong $DNA$?
In an Ecolistrain $i$ gene gets mutated and its product can not bind the inducer molecule. If growth medium is provided with lactose, what will be the outcome?