SOME ACQUIRED CHARACTERISTICS MAY BE INHERITED.

Although the hypothesis of the inheritance of acquired characteristics, first theorized by Hippocrates and Aristotle, was almost universally rejected by 20th century scientists, a new science called epigenetics now gives it some credit. Epigenetics study the alterations in gene expression as a response to environment. Only 8,000 of the 24,000 genes in our DNA are activated, and when our environment evolves, or our diet changes, we alter this pattern. The genome itself doesn’t change, or mutate, but it does adapt by modifying the gene expression, activating genes formerly dormant. And these “activations” are transmitted to our descendants.

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