The epigenome influences gene expression through which mechanism?

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Multiple Choice

The epigenome influences gene expression through which mechanism?

Explanation:
Epigenetic regulation uses chemical marks on DNA and histone proteins to control gene activity without changing the DNA letters. These marks change how tightly the DNA is packaged, which determines whether the transcription machinery can access a gene. As a result, genes can be turned on or off in different cells or in response to development and environmental influences. This mechanism best matches chemical compounds that determine which traits in the DNA sequence will be expressed. It’s not about altering the DNA sequence itself, speeding up protein production during translation, or editing RNA after transcription.

Epigenetic regulation uses chemical marks on DNA and histone proteins to control gene activity without changing the DNA letters. These marks change how tightly the DNA is packaged, which determines whether the transcription machinery can access a gene. As a result, genes can be turned on or off in different cells or in response to development and environmental influences. This mechanism best matches chemical compounds that determine which traits in the DNA sequence will be expressed. It’s not about altering the DNA sequence itself, speeding up protein production during translation, or editing RNA after transcription.

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