What is the difference between an inducible and a repressible operon if both are under negative regulation?

Negative inducible operons is a process where the active regulator protein binds to the operator which prevents RNA polymerase from transcribing. Negative repressible operons is when an inducer is need to bind to the operon to prevent transcription.

What is the difference between positive and negative control what is the difference between inducible and repressible operons quizlet?

Positive/Negative and Repressible/Inducible gene regulation Positive control- The regulator of the operon acts as an activator and is required in its active form for transcription. Negative control- The regulator of the operon acts as a repressor that prevents transcription when it is active.

What is the difference between positive and negative gene regulation?

The key difference between positive and negative gene expression is that in positive gene regulation, transcriptional factor binds to the promoter of the gene and facilitates the binding of RNA polymerase to transcript the gene while in negative gene regulation, a repressor protein binds with the operator of the gene …

What is the difference between a positive and negative control quizlet?

Positive control consists of all conditioning that is based on positive reinforcement. Negative control consists of all conditioning that is based on negative reinforcement.

How does the operon operate by a negative Repressible feedback mechanism?

The operon operates by a negative repressible feedback mechanism. The repressor for the trp operon is produced upstream by the trpR gene, which is constitutively expressed at a low level. This prevents RNA polymerase from binding to and transcribing the operon, so tryptophan is not produced from its precursor.

What is negative Repressible regulation?

In repressible negative regulation, the default state of gene transcription is “on.” The regulatory protein alone cannot bind to the operator site to turn it off, but when the effector is present, it binds to the regulatory protein and the resulting molecular complex binds to the operator, and turns gene transcription …

Which of the following is a difference between inducible versus repressible operons quizlet?

An inducible operon normally is not transcribed. In a repressible operon, transcription is turned off either by the repressor becoming active in a negative repressible operon or by the activator becoming inactive in a positive repressible operon.