I understand that DNA carries physiological human traits like skin tone, hair, athleticism, etc. But how is it that children mimic the same mannerism that one of the parents had. For example, a ditto sleeping position, or in the case of a guy I know who used to hold on to his moms/dads ear as a child, and now his son does the exact same thing. How does DNA carry behavioral characteristics/traits?
In: Biology
If you are actually interested in knowing what humans understand about this question, check out Robert Sapolsky’s lecture series on [behavioral genetics](https://www.youtube.com/watch?v=NNnIGh9g6fA). It is free on Youtube from the Stanford channel. It might not be accessible to a five year old, but he certainly makes it accessible to the average Joe who knows a little bit about the scientific method.
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