« previous next »

Author Question: For a repressible operon to be transcribed, which of the following must occur? (Read 1063 times)

aero

  • Hero Member
  • *****
  • Posts: 512
on: Jun 29, 2013
 For a repressible operon to be transcribed, which of the following must occur?
A) A corepressor must be present.
B) RNA polymerase and the active repressor must be present.
C) RNA polymerase must bind to the promoter, and the repressor must be inactive.
D) RNA polymerase cannot be present, and the repressor must be inactive.
E) RNA polymerase must not occupy the promoter, and the repressor must be inactive.


Hawke

  • Hero Member
  • *****
  • Posts: 679
Reply #1 on: Jul 1, 2013
I'd go with C. It makes sense.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

aero

  • Hero Member
  • *****
  • Posts: 512
Reply #2 on: Jul 23, 2013
Thanks Hawke :D


« previous next »
 

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Ectopic pregnancies. (a) An ectopic pregnancy may occur in any of the locations shown. Interstitial Ectopic pregnancies. (a) An ectopic pregnancy may occur in any of the locations shown. Interstitial
The nonionic form does not occur in significant amounts in aqueous solutions The nonionic form does not occur in significant amounts in aqueous solutions
Lactose Operon Lactose Operon
Lactose Operon Lactose Operon
Modification steps (1–4) that occur in maturation of E. coli tRNATyr from its transcript Modification steps (1–4) that occur in maturation of E. coli tRNATyr from its transcript
Regulatory Proteins Binding to lac Operon Regulatory Sequences Regulatory Proteins Binding to lac Operon Regulatory Sequences
Video: Stomach peristalsis & Enterogastric reflex

For a complete list of videos, visit our video library