Anatomy Regarding sexual differentiation of the fetus? A Gonadal development begins at 5th week of intrauterine life B Y chromosome determines the differentiation of ovaries. C Female external genitalia development is completed by 10 weeks. D Male sexual differentiation occurs earlier than females 💡 Explanation Regarding sexual differentiation of the fetus? ✓ Correct Answer: D. Male sexual differentiation occurs earlier than females