Which of the following is true for a repressible operon? they are important for replication of DNA the repressor can bind to the structural genes and block their transcription the structural genes are usually turned off (not transcribed) unless there is a signal to turn them on the structural genes are usually turned on (transcribed) unless there is a signal to turn them off
Added by Aaron J.
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A repressible operon is a genetic regulatory system in which the expression of genes is inhibited by a specific repressor molecule. This system is typically used to control the production of enzymes or proteins that are not needed continuously. Show more…
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Which of the following best describes repressible genes? The operon is always off and is turned on with presence of a particular substrate The operon is always on and is turned off with presence of a particular substrate An inducer binds to a repressor to turn the operon on Two of these are correct
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Select all of the true statements about repressible operons: By default they are off until turned on. An example is the lactose operon. An example is the arginine operon. A repressor has to bind to the operator in order for the operon to be turned off.
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