Anatomy Where do primordial germ cells initially develop A In the gonads at week 4 of embryonic development B In the yolk sac at week 4 of embryonic development C In the gonads at month 5 of embryonic development D In the yolk sac at month 5 of embryonic development π‘ Explanation Where do primordial germ cells initially develop β Correct Answer: B. In the yolk sac at week 4 of embryonic development