The Identification of Gene Products in a Gene Library. Restriction enzymes (to cut the DNA) and gel electrophoresis (to separate the resulting fragments) can be used to produce a physical map of DNA segments in a process known as restriction mapping.
Estrogen pills may be prescribed to lessen the symptoms of menopause, like hot flashes. Estrogen is used in birth control pills to prevent conception. The thickness of the endometrium changes along with the female's menstrual cycle. Older women may have an estrogen deficiency as they begin menopause.
Birth control pills. Birth control pills may help women who see a clear link between their acne and periods. âAnything that raises estrogen levels will lessen the effects of testosterone in women,â Lyster says. Birth control pills work by increasing a protein called sex-hormone binding globulin (SHBG) in the blood.