What are some types of the molecular changes that underlie epigenetic gene regulation?

Question

Quizplus · Accepted Answer

Epigenetic gene regulation is mediated by changes in chromatin structure and modifications to the DNA molecule, such as DNA methylation. Chromatin remodeling involves modifications to histones and nucleosome positioning, which can alter the accessibility of the DNA to transcription factors and other regulatory proteins. DNA methylation involves the addition of a methyl group to cytosine residues in the DNA molecule, which can also affect gene expression. Depurination, the loss of a purine base from DNA, is not typically considered an epigenetic modification.

What Are Some Types of the Molecular Changes That Underlie