What Develops First: A Boy or Girl? Exploring Early Gender Development

Discover how male and female babies develop in the womb. Learn about the role of the SRY gene in gender differentiation.

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The development of a boy or girl in the womb begins identically. At about 6-7 weeks of pregnancy, the sex-determining region Y (SRY) gene on the Y chromosome activates in males, initiating the development of testes. Without this, ovaries develop. Gender-specific differentiation continues as pregnancy progresses.

FAQs & Answers

  1. How does the SRY gene influence fetal development? The SRY gene on the Y chromosome triggers the development of male characteristics in the fetus, starting the process of making testes.
  2. At what point in pregnancy is the baby's sex determined? The sex of a baby is determined around 6-7 weeks of pregnancy when the SRY gene is activated in males.
  3. Do boys and girls develop differently in the womb? Yes, while initial development is similar, hormonal influences after the activation of the SRY gene lead to different developments of male and female reproductive systems.
  4. What are the implications of knowing fetal sex early in pregnancy? Knowing the sex early can help parents prepare and is often tied to societal preferences, though medically it is primarily for monitoring development.

Watch More

For more insights into fetal development and pregnancy, check out our videos on the stages of pregnancy and prenatal care tips.

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