Effects of genomic imprinting are dynamic throughout life (The Dana Foundation Website - 8 October 2010)
Every cell in the human body, be it liver cell or blood cell or neuron, develops and runs on the same DNA. Mammals, for the most part, have two copies of every gene, a copy inherited from both the mother and the father, providing a handy backup in case one of the two is damaged. But nearly two decades ago, scientists discovered that for a limited number of genes, only one copy is active—the second is turned off by a regulatory process known as genomic imprinting...
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