In each species, methyl teams are extra to DNA molecules during getting older, altering DNA action without altering the DNA by itself. Due to this fact, DNA methylation has long been used by researchers to study aging in humans via an “epigenetic clock.” This is principally because of selective breeding. https://cashkuvfm.blogsidea.com/40112333/canine-age-chart-things-to-know-before-you-buy