A fetus usually develops into a male if it is exposed to a significant amount of testosterone (typically because the fetus has a Y chromosome from the father).
Otherwise, the fetus usually develops into a female, typically when the fetus has an X chromosome from the father, but also when the father contributed neither an X nor Y chromosome.
bat mitzvah in Judaism, or even just the custom of a special celebration for a certain birthday (generally between 12 and 21), like the Quinceañera of Latin America.
Later at puberty, estrogen feminizes a young woman, giving her adult sexual characteristics.
An imbalance of maternal hormonal levels and some chemicals (or drugs) may alter the secondary sexual characteristics of fetuses.
Women with typical genetic development are usually capable of giving birth from puberty until menopause.
With regard to gender, a woman may also be a person whose sex does not align with their gender identity, In Old English, wīfmann meant "female human", whereas wēr meant "male human".
Alchemists constructed the symbol from a circle (representing spirit) above an equilateral cross (representing matter).