#Question id: 2668
#Unit 2. Cellular Organization
The toxic shock syndrome toxin is produced by some Salmonella species when there is not sufficient iron present. When iron is present, it prevents transcription of the TSS-toxin gene. Iron therefore serves as __________.
#Question id: 2669
#Unit 2. Cellular Organization
what is an operon?
#Question id: 2670
#Unit 2. Cellular Organization
A protein that binds to the operator and blocks the RNA polymerase
#Question id: 2671
#Unit 2. Cellular Organization
The "on/off" switch for an operon is called the
#Question id: 2672
#Unit 2. Cellular Organization
What is the name of the stretch of DNA where RNA polymerase binds?
#Question id: 2673
#Unit 2. Cellular Organization
For a repressible operon to be transcribed, which of the following must be true?