Behavioural geneticists are finding that within a group of people, about _______________ of the variation in personality traits such as happiness is attributable to genetic differences.

Question

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Behavioural geneticists have found that about 50% of the variation in personality traits such as happiness is attributable to genetic differences. This means that the other 50% is shaped by environmental factors such as upbringing, life experiences, and social interactions.

Behavioural Geneticists Are Finding That Within a Group of People