system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Weight of placenta and fetus are equal at:
assistant
The correct answer is  Ans. is c, i.e. 17 weeksRef Williams Obs 24/e p 95"In the first trimester, placental growth is more rapid than that of the fetus. But by approximately 17 post menstrual weeks, placental and fetal weights are approximately equal" Ref Williams 24/e, p 95