Which of the following statements is not associated with epigenetic inheritance?

• A. DNA methylation
• B. Histone acetylation
• C. Removal of acetyl groups from histones
• D. DNA phosphorylation
• E. Chemical mutagens

Answer: (E)

Verified step by step guidance

1. Understand the concept of epigenetic inheritance: Epigenetic inheritance refers to changes in gene expression that do not involve alterations to the DNA sequence itself. These changes can be passed down to subsequent generations.
2. Explore DNA methylation: DNA methylation involves the addition of a methyl group to the DNA molecule, typically at cytosine bases. This process can suppress gene expression and is a key mechanism of epigenetic regulation.
3. Examine histone acetylation: Histone acetylation involves the addition of acetyl groups to histone proteins, which can lead to a more relaxed chromatin structure and increased gene expression. This is another mechanism of epigenetic regulation.
4. Consider the removal of acetyl groups from histones: The removal of acetyl groups from histones, known as deacetylation, can lead to a tighter chromatin structure and reduced gene expression, also playing a role in epigenetic regulation.
5. Evaluate DNA phosphorylation: DNA phosphorylation is not typically associated with epigenetic inheritance. It involves the addition of phosphate groups to the DNA molecule, which is more related to DNA repair and replication processes rather than epigenetic changes.