Hi Aasha,
Your DNA is essentially the same line of code in every single cell in your body, but not all of your cells perform the same jobs. Cells come together to build tissues as different from each other as muscle and bone, even though they all technically have the same genes inside them. The intricate and minute choices that your cells make about which genes to express are what we call the epigenome. The study of these stable changes is called as Epigenetics. This "gene-to-express" be influenced by basically anything: Where your mother lived while pregnant with you, what kind of food you're eating, and even what kinds of pollutants your grandparents were exposed to as children.
Thanks
Hi Aasha,
Epigenetics is the study of stable changes to the genome that can influence gene expression, but do not involve changes to the underlying DNA sequence.
Thanks