Biology
Grade-8
Easy
Question
Genes can be shut off (not expressed) when a ___ binds to the ____.
- Activator, operator
- Repressor, operator
- Corepressor, operator
- Repressor, promotor
Hint:
The gene regulations are controlled by operon
The correct answer is: Repressor, operator
- Transcription and translation were physically separated into two different cellular compartments. \
- It, therefore, became possible to control gene expression by regulating transcription in the nucleus, and also by controlling the RNA levels and protein translation present outside the nucleus.
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