FG Syndrome Family Alliance, Inc.
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Is FG Syndrome always passed down from the mother?
Some children born with FG Syndrome did not get it from their mothers. In very rare instances, there are spontaneous changes of genetic material at the time of conception or before.
It is not caused because anyone did anything wrong!
Rather, it is just some unexplainable, natural change.
When FG Syndrome is present in a family, it can be passed from mother to child. Fathers can only pass it to their daughters, who only rarely (according to our present knowledge) express the syndrome. While some carrier girls will have strong carrier traits, they will more likely pass the FG Syndrome along to their sons who would be affected, and to their daughters who would carry the trait.
Therefore, if a carrier mother had a brother who did not have FG Syndrome, he would have no risk of passing the syndrome to his children. However, if she had a sister, that sister would be at risk for passing the gene along to her children.
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Disclaimer: This page was not created by a medical professional. Any errors should
be reported immediately to info@fg-syndrome.org.FG Syndrome Family Alliance, Inc., 2009
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