MCAT Behavioral Sciences Question 163: Answer and Explanation
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Question: 163
13. Which of the following demographic variables is known to be biologically determined?
- A. Gender
- B. Sex
- C. Ethnicity
- D. Sexual orientation
Correct Answer: B
Explanation:
Sex is determined by one's genotype, and therefore is biologically determined. Gender, choice (A), may or may not match biological sex and therefore is not biologically determined. Ethnicity, choice (C), is a social construct that sorts people by cultural factors, and therefore is not biologically determined. Sexual orientation, choice (D), may have some biological component, but the relative role of biology and environment is not yet known.