the type of regulation shown here? Is this operon normally on or o 19 binds to t

Question

the type of regulation shown here? Is this operon normally on or o 19 binds to the operator, will the structural genes be transcribed or repressed? ff? If the repressor pescribe RNA polymerase Transcription Repressor mRNA Active repressor protein Translation 20. Describe the type of regulation shown here? The structure labeled 1 is allolactose. It is considered an inducer. Structure 2 is a repressor protein. What will happen when the two structures bind as in structure 3 in terms of initiating or repressing transcription? Transcription Operon mRNA Translation Allolactose Transacetylase Permease B-Galactosidase

Explanation / Answer

19.Type of regulation shown here is the negative inducible operon ,in which the regulatory protein is a repressor,binding to DNA and inhibiting transcription,something must happen to induce to turn on the transcription.Repressor bind to DNA,there is no transcription of structural genes.

20.Type of regulation shown here is negative inducible,in which active regulator protein become inactive by binding with the inducer which is allolactose.When this complex bind with the promoter ,it can not stop transcription and their is continuous transcription and translation takes place.

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