We know that while all our body cells contain the same DNA we inherited from our parents, they undergo epigenetic changes so that they can make our different body cells. Further, scientists are learning how our environment can cause further epigenetic changes to our cell DNA that can influence our health and even cause cancer. This article by Kate Patterson, Senior Research Officer: Biomedical Animator and Visual Science Communicator and Susan Clark, Senior Principal Research Fellow, both of the Garvan Institute, Australia, contains a great animation, showing how methylation tags are added and removed from our DNA by the enzyme, DNA methyltransferase (DNMT). Just watch the animation for a quick, easy to understand overview on this process by which genes are switched off and on actually works. The article is more about the challenges the animator overcame in producing this animation:
theconversation.com/art-and...
Neil