Trisomy 18 (also called edwards syndrome) occurs when there are three copies of chromosome 18. What type of genetic variant is trisomy 18
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Edwards syndrome, also known as trisomy 18, is a genetic disorder caused by a third copy of all or part of chromosome 18. Many parts of the body are affected. Babies are often born small and have heart defects.
Other names: Trisomy 18 (T18), chromosome 18 ...
Causes: Third copy of chromosome 18 (usually ...
Symptoms: Small head, small jaw, clenched fists ...
Usual onset: Present at birth
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