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When Does a Baby Develop Gender?

May 01, 2021

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yeong67

Gender is determined immediately upon fertilization. The 23rd pair of chromosomes establishes the sex of the baby. The mother's egg contains an X chromosome, while the father's sperm carries either another X or a Y chromosome. An XX combination means your baby is female and an XY combination means your baby is male. This means that the baby's gender is determined before it is even considered a fetus.

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One of the most exciting things about having a child is learning the gender of the baby. Many people choose to find out as soon as possible, while others decide to keep it a surprise. Although you may not see sex organs on a sonogram for weeks, a baby's sex is determined long before it arrives in the world.