Researchers have made a discovery that explains how an organism can create a biological memory of some variable condition, such as quality of nutrition or temperature. The discovery explains the mechanism of this memory — a sort of biological switch — and how it can also be inherited by offspring.
Quoted from Epigenetic ‘memory’ key to nature versus nurture on ScienceDaily: Top News
Epigenetics definition is - the study of heritable changes in gene function that do not involve changes in DNA sequence. How to use epigenetics in a sentence. Epigenetics literally means "above" or "on top of" genetics. It refers to external modifications to DNA that turn genes "on" or "off." These modifications do not change the DNA sequence, but A human being has trillions of cells, specialized for different functions in muscles, bones and the brain, and each of these cells carries essentially the same genome in its nucleus. Tags: epigenomics, fact, sheet, nhgri, Babraham Institute » Epigenetics What is s? The activity of our genes is determined by more than their DNA sequence alone. Active and silent genes are distinguished by marks – chemical tags that are added the DNA Grandma's Experiences Leave a Mark on Your Genes. Your ancesrs' lousy childhoods or excellent adventures might change your personality, bequeathing anxiety or resilience by altering the expressions of genes in the brain.