Expérience sur la mémoire (épi)génétique chez les souris ... intrigant. Les parents souris auraient transmis la peur d'une odeur à leur progéniture. Je cite:
The researchers showed this was a vivid example of epigenetics, a term meaning "on top of genetics,” which explains how genes can get turned on or off, regardless of the underlying genetic code itself. Although you might think the genetic code is set in stone, certain environmental factors can change how these genes express themselves. This means that environmental stimuli, such as diet or trauma, can switch certain genes on or off like a dimmer switch.
Scientists Made Mice Fear A Smell They'd Never Experienced – But It Had Traumatized Their Parents
Source: iflscience.com
