Alterations that modify a gene by changing its regulation but not the sequence of information are called

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Alterations that modify gene expression without changing the DNA sequence are called epigenetic modifications. These modifications include chemical changes to the DNA molecule itself (such as methylation), as well as modifications to the proteins (histones) that package and control access to the DNA. These changes can affect how a gene is transcribed and translated, leading to phenotypic changes without altering the genetic code itself. Mutations (A) involve changes to the DNA sequence itself, while phenotypic changes (B) could result from a variety of causes, including both genetic and environmental factors. Transcriptional modifications (C) are a subset of epigenetic modifications that specifically affect RNA synthesis from DNA templates.

Alterations That Modify a Gene by Changing Its Regulation but Not