Medical Animation Encyclopedia

Kids-Is it a girl or boy?

To make a baby, a man?s sperm meets and joins with a woman?s egg cell inside her body. Inside the man?s sperm are a set of instructions that tell the baby to be a boy or a girl.

The instructions in the man?s sperm cell can either carry the letter "X" or the letter "Y". If the letter is an "X", it means the baby will be a girl. If the letter is a "Y", the baby will be a boy.

Review Date: Sep 16, 2008
Reviewed By: Dan Sacks MD, FACOG, Obstetrics & Gynecology in Private Practice, West Palm Beach, FL. Review provided by VeriMed Healthcare Network.

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