Multiple Choice
Which statement describes the correct order of steps leading to gene regulation by miRNAs in eukaryotic cells?
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13. Gene Regulation in Eukaryotes
Overview of Eukaryotic Gene Regulation
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In both prokaryotes and eukaryotes, gene regulation most commonly occurs at which stage of gene expression?
A
Translation elongation
B
Protein degradation
C
Transcription initiation
D
RNA splicing
Verified step by step guidance1
Understand the stages of gene expression: transcription initiation, RNA splicing, translation elongation, and protein degradation.
Recall that gene regulation can occur at multiple stages, but the most common and primary control point is where the cell decides whether to make RNA from DNA, which is transcription initiation.
Recognize that transcription initiation involves the binding of RNA polymerase and transcription factors to the promoter region of a gene, controlling whether the gene is transcribed into RNA.
Note that RNA splicing, translation elongation, and protein degradation are important regulatory steps but are generally less common as primary control points compared to transcription initiation.
Conclude that the stage where gene regulation most commonly occurs in both prokaryotes and eukaryotes is transcription initiation.
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