What are the Common Types of Epigenetic Modifications?
The most common types of epigenetic modifications include DNA methylation, histone modification, and non-coding RNA interactions. DNA methylation typically involves the addition of a methyl group to the DNA molecule, often leading to gene silencing. Histone modifications can include acetylation, methylation, and phosphorylation, which impact how tightly DNA is wound around histones, thus regulating gene expression. Non-coding RNAs can also modulate gene expression by interacting with mRNA or DNA.