Overview
Trisomy is a genetic disorder in which a person has 3 copies of a chromosome instead of 2. Examples of trisomy chromosomal disorders include trisomy 13, trisomy 18 and trisomy 21 (Down syndrome).
Symptoms
Trisomy can cause a variety of health conditions ranging from mild intellectual and developmental disability to shortened life expectancy.
Last Updated: June 13th, 2017
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