Epigenetics is the structural changes in chromosomal regions, which signal or perpetuate alteration in gene expression by turning it on or off. Epigenetic alteration includes DNA methylation, histone modification, chromatin remodeling, genomic imprinting, X chromosome inactivation, and non-coding RNA regulation affecting gene transcription. Epigenetics is applied for the studies of on... https://qr.ae/pAIE7F