The Reproductive System at a Glance

at a Glance

Linda J. Heffner,Danny J. Schust

Multiple Choice: The protein hormones of pregnancy

Question 1. All of the following are true about human chorionic gonadotropin EXCEPT:

A In early pregnancy, the levels are expected to double every 2–3 days
B It is structurally related to oxytocin, and binds to receptors to support the corpus luteum
C It is initially produced by the trophoblast cells of the embryo
D During the first trimester, it stimulates the fetal gonads to make steroid hormones responsible for sexual differentiation
twitter