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Answer :
Final answer:
The correct answer is 'a major role for genetics as well as environment in the control of facial expressions'. Multiple studies including those of individuals who were born blind demonstrate that facial expressions have a genetic basis, although environmental factors also contribute to how these traits are expressed due to gene-environment interactions.
Explanation:
The results of several studies of facial expressions in people who were born blind suggest a major role for genetics as well as environment in the control of facial expressions. Even congenitally blind individuals produce the same facial expressions of emotions, indicating a genetic component to these expressions. However, this does not exclude the role of the environment, as gene-environment interactions also profoundly influence behavior and traits expression.
Heritability of personality traits shows that genetics account for about 50% of the nature of our personality. There's evidence of substantial genetic influence on various psychological factors, and current research often focuses on gene-environment interactions. The study of epigenetics further supports the idea that environmental factors can change gene expression, impacting how certain characteristics are expressed.
In conclusion, both nature and nurture play significant roles in shaping who we become, functioning in a complex interplay to determine the expression of traits and behaviors, which includes the universal patterns of facial expressions associated with emotions.
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Answer:
b. a major role for genetics as well as environment in the control of facial expressions
Explanation:
Facial expression: The term facial expression is described as one or more than one positions or motions of the different muscles that are being present beneath an individual's facial skin. The movement of face muscles displays the emotional state of a person to observe and s often considered as a type of "nonverbal communication".
However, as nature and nurture studies have shown that genetics and environment both play a crucial and important role in an individual's development including facial expressions.
