Multiple Choice
How do bacterial regulatory proteins mediate negative control of transcription in prokaryotic cells?
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16. Regulation of Expression
Prokaryotic Gene Regulation via Operons
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
In prokaryotic cells, control of gene expression primarily occurs at which level?
A
Post-translational level
B
Transcriptional level
C
Epigenetic level
D
Translational level
Verified step by step guidance1
Understand the concept of gene expression: Gene expression is the process by which information from a gene is used to synthesize a functional gene product, usually a protein.
Identify the levels of gene expression control: Gene expression can be regulated at various stages, including transcriptional, post-transcriptional, translational, and post-translational levels.
Focus on prokaryotic cells: In prokaryotes, the primary control of gene expression occurs at the transcriptional level, where the synthesis of mRNA from DNA is regulated.
Consider the mechanisms involved: Transcriptional regulation in prokaryotes often involves operons, which are clusters of genes under the control of a single promoter, allowing coordinated regulation.
Recognize the importance of transcriptional control: By controlling transcription, prokaryotic cells efficiently manage resource allocation and respond to environmental changes, making it the primary level of gene expression regulation.
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