Why has RU-486 been dubbed by some as "the abortion pill"?
A) It prevents the zygote from implanting in the uterus,thus the zygote never develops beyond a few cells in size.
B) It blocks certain hormonal actions that result in menstrual flow occurring after implantation.
C) It mimics testosterone,which interferes with GnRH synthesis and thus terminates the pregnancy after several days.
D) A negative feedback on the pituitary stimulates the release of too much luteinizing hormone that prevents proper blood vessel formation in the embryo.
Correct Answer:
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