Final answer:
Genetic factors significantly influence traits like intelligence, while sociability and shyness are more shaped by environmental factors. Family environment can impact genetic expression but is not a direct genetic influence.
Explanation:
Genetic factors play a significant role in influencing various traits, including intelligence. However, sociability and shyness are primarily shaped by environmental factors such as social interactions and experiences. While family environment can impact genetic expression and development, it may not be a direct genetic influence.
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