Podcast
Questions and Answers
What happens to a repressible gene when a regulatory chemical is added?
What happens to a repressible gene when a regulatory chemical is added?
- It is switched off (correct)
- It becomes unstable
- It remains unchanged
- It is switched on
How is a repressible gene regulated?
How is a repressible gene regulated?
- By reducing translation efficiency
- By addition of a regulatory chemical (correct)
- By increasing transcription factors
- By decreasing mRNA stability
Which term best describes a gene that can be turned off by a specific chemical?
Which term best describes a gene that can be turned off by a specific chemical?
- Activatable gene
- Promoter gene
- Inducible gene
- Repressible gene (correct)
What effect does the regulatory chemical have on a repressible gene?
What effect does the regulatory chemical have on a repressible gene?
In the context of gene regulation, what does 'repressible' mean?
In the context of gene regulation, what does 'repressible' mean?
What type of gene is repressible?
What type of gene is repressible?
In the context of gene expression, what do regulatory switches control?
In the context of gene expression, what do regulatory switches control?
Which term describes a gene that is only active in the presence of a specific inducer?
Which term describes a gene that is only active in the presence of a specific inducer?
What is the role of a promoter in gene expression vectors?
What is the role of a promoter in gene expression vectors?
Which term best describes a gene that is always actively transcribed, regardless of external conditions?
Which term best describes a gene that is always actively transcribed, regardless of external conditions?
What happens to the transcription of a repressible gene when a chemical is added to the growth medium?
What happens to the transcription of a repressible gene when a chemical is added to the growth medium?
Which type of gene regulation involves promoters indirectly?
Which type of gene regulation involves promoters indirectly?
What effect does addition of a chemical have on the transcription of an inducible gene?
What effect does addition of a chemical have on the transcription of an inducible gene?
How does a repressible gene behave in the absence of the inducer chemical?
How does a repressible gene behave in the absence of the inducer chemical?
What aspect of gene regulation is specifically mentioned to involve promoter 2 indirectly?
What aspect of gene regulation is specifically mentioned to involve promoter 2 indirectly?