Multiple Choice
Which gene transfer method involves the uptake of free DNA by competent bacterial cells?
16. Regulation of Expression
Prokaryotic Gene Regulation via Operons
Back16. Regulation of Expression
Prokaryotic Gene Regulation via Operons
- Multiple ChoiceHow many distinct proteins are produced from the pmocab operon in prokaryotes?
- Multiple ChoiceFor a repressible operon to be transcribed, which of the following conditions must occur?1views
- Multiple ChoiceWhich of the following are the three main methods of gene transfer in bacteria?
- Multiple ChoiceWhich of the following is constitutively (always) expressed in a prokaryotic cell?
- Multiple ChoiceWhich of the following is an example of positive control in operons?
- Multiple ChoiceHow do bacterial regulatory proteins mediate negative control of transcription in prokaryotic cells?
- Multiple Choice
Which of the following statements is FALSE?
2views - Multiple ChoiceIn an inducible operon, the inducer is often the __________ in the pathway being regulated; the inducer binds to the __________, which then becomes __________.2views
- Multiple Choice
When this is present in the cell, it binds to the repressor and the repressor can no longer bind to the operator:
2views - Multiple ChoiceWhat is the primary advantage of operon organization in bacteria?
- Multiple ChoiceThe following diagram shows an operon that is normally turned off but can be activated in the presence of a specific substrate (e.g., lactose). Which type of operon is depicted?1views
- Multiple Choice
Which of the following is true about operons?
4views - Multiple ChoiceWhich of the following RNA processing mechanisms occur in prokaryotes?
- Multiple ChoiceBoth repressible and inducible operons control gene expression at the level of __________.2views