As emphasized in the last chapter, epigenetic changes can be multi-generational.8 Dogma was that all the epigenetic marks {i.e., changes in the DNA or surrounding proteins} were erased in eggs and sperm. But it turns out that epigenetic marks can be passed on by both {e.g., make male mice diabetic, and they pass the trait to their offspring via epigenetic changes in sperm}.
( Robert M. Sapolsky )
[ Behave: The Biology of Humans ]
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