How do cultural universals and similarities between twins raised apart,respectively,inform the nature vs.nurture debate?

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Cultural universals are behaviors, beliefs, and institutions that are found in all human cultures. They provide evidence for the "nature" position in the nature vs. nurture debate because they suggest that certain aspects of human behavior are innate. Similarities between twins raised apart also provide evidence for the "nature" position because they suggest that genetics play a role in shaping our personality and behavior.

How Do Cultural Universals and Similarities Between Twins Raised Apart,respectively,inform