The Medication Known as Mifepristone or RU-486

question 50

Multiple Choice

The medication known as mifepristone or RU-486

• A) kills sperm as they enter the female reproductive tract.
• B) blocks the progesterone receptors of cells in the uterine lining and causes the loss of an implanted embryo.
• C) prevents an egg from maturing and being released-essentially a stronger regular birth control pill.
• D) destroys the embryo which in turn causes a spontaneous miscarriage.
• E) prevents development of a uterine lining.

---

Definitions:

Genes

The basic physical and functional units of heredity, made up of DNA, that determine specific characteristics by encoding proteins.

Environmental Factors

External influences that can affect the development, behavior, and survival of organisms, including climate, geography, pollutants, and socioeconomic conditions.

Sleep-Wake Cycles

The natural, cyclical pattern of alternating states of sleep and wakefulness.

Adrenal Gland

A gland located above the kidney that produces hormones such as adrenaline and cortisol, which help control stress, metabolism, and immune response.