Epigenetic regulation is referred to as changes in gene function that do not involve changes in the DNA sequence. it is usually accomplished by DNA methylation. histone modifications (repressive marks such as H3K9me. H3K27me. https://www.ngetikin.com/special-pick-MVP4-Moisture-Vapor-Protection-Anti-Fracture-and-Noise-Reduction-Membrane-special-save/