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Will I pass fragile X to my baby if I am a carrier?

This gene is carried on the X-chromosome.  Women have 2 X-chromosomes and men have one X chromosome and one Y chromosome.  Girls get one X-chromosome from Mom and one X-chromosome from Dad, so if dad is a carrier, the girl will be too.   Mom Has 2 X chromosomes, so the chance of one of her daughters or sons getting the fragile X chromosome from her is a 50% chance.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.