Which of the following is true about genetic contributions to personality? Select one 1. Personality is completely determined by genetics 2. B) Personality is unaffected by genetic factors 3. Genetics only affect physical characteristics, not personality 4. Genetics may account for about 40-60% of personality traits

The correct answer is 4) Genetics may account for about $40-60\%$ of personality traits.<br /><br />Research in the field of behavioral genetics has shown that genetics can play a significant role in shaping personality traits. Twin studies, adoption studies, and family studies have provided evidence that genetic factors contribute to individual differences in personality. While the exact percentage of personality traits that can be attributed to genetics may vary depending on the specific trait and the study, it is generally estimated that genetics may account for about $40-60\%$ of personality traits.<br /><br />It is important to note that genetics is not the only factor that influences personality. Environmental factors, such as upbringing, social interactions, and life experiences, also play a crucial role in shaping an individual's personality. The interaction between genetic and environmental factors is complex and can vary across individuals.