Regulation of bacterial gene expression typically involves all of the following mechanisms except regulation of RNA processing. The correct option is (A).
What are the mechanisms of regulating gene expression?
In particular, there are two levels of control over gene expression. The first way transcription is regulated is by regulating the amount of mRNA that can be generated from a given gene. The translation of mRNA into proteins is regulated by post-transcriptional processes, which constitute the second level of regulation.
How is gene expression regulated?
In essence, epigenetic changes, or "tags," such DNA methylation and histone modification, change the accessibility of DNA and the structure of chromatin, which controls how genes are expressed.
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