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.
According to the manufacturer, estriol is considered the most effective and safest estrogen to use to alleviate symptoms such as headaches, hot flashes, wrinkles, mood swings, vaginal dryness, and brittle bones. It may even be protective against breast cancer.