Examlex
A common structure for proteins that bind DNA is helix-turn-helix.
First Period
The initial onset of menstruation, marking the beginning of reproductive capability in females.
Secular Trend
A long-term pattern or trend observed over several generations, often referring to changes in physical or social characteristics of populations.
Onset
Describes the beginning or start of something, such as a disease, a symptom, or a phase of life.
Puberty
The phase of human development during which a child's body matures into an adult body capable of sexual reproduction, marked by various physiological changes.
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