How do you know that yan was a determined boy?
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A baby's gender is determined when the egg is fertilized. ... The sex of the baby is determined by the sperm cell that fertilizes the egg first. If the sperm is carrying an X chromosome, the baby will be a girl. If the sperm is carrying a Y chromosome, the baby will be a boy.
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yan is the bad boy in the world
Explanation:a bad boy
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