Traditionally, differences among individuals have been divided into genetic and environmental causes. However, both types of variation can underlie regulatory changes in gene expression — that is, ...

The study of the signals and mechanisms that shape our life’s trajectory has been a topic of fascination for centuries. The discovery that epigenetic variation — changes in gene expression or cellular ...

Scientists have long known that the DNA code in genes is not the only way to pass genetic traits from parents to offspring. "Epigenetic" marks—chemical modifications to DNA that don't change the DNA ...