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Multiple Choice
Eukaryotic gene expression can be regulated at which of the following levels?
A
Post-translational level
B
Mitochondrial level
C
Replication level
D
Transcriptional level
Verified step by step guidance
1
Understand that gene expression in eukaryotic cells involves multiple stages, including transcription, RNA processing, translation, and post-translational modifications.
Recognize that regulation can occur at any of these stages, but transcriptional regulation is a primary control point for gene expression.
Transcriptional regulation involves controlling the rate at which genes are transcribed into messenger RNA (mRNA). This can be influenced by transcription factors, enhancers, silencers, and other DNA-binding proteins.
Consider that transcriptional regulation allows cells to respond to environmental signals and developmental cues by turning genes on or off as needed.
Note that while post-translational modifications can regulate protein activity, the transcriptional level is where the initial decision to express a gene is made, making it a crucial point of regulation.