Multiple choice

The developing gonads can be identified as either male or female by the end of the

  1. 9th week of development

  2. 7th week of development

  3. 5th week of development

  4. 11th week of development

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Gonadal sexual differentiation begins during the 7th week of embryonic development. The bipotential gonad develops into either testes or ovaries based on genetic and hormonal signals. Earlier stages (5th week) have undifferentiated gonads, while 9th and 11th weeks are too late - differentiation is typically complete or well underway.