The fact that a blastocyst has been implanted on the uterine wall can be demonstrated by the presence of
A) human chorionic gonadotropin.
B) progesterone.
C) estrogen.
D) testosterone.
E) second polar body.

Question

Quizplus · Accepted Answer

Human chorionic gonadotropin (hCG) is produced by the cells of the blastocyst after implantation and is detectable in the mother's blood and urine, indicating pregnancy.

The Fact That a Blastocyst Has Been Implanted on the Uterine