Introduction Aneuploidy refers to a condition in which a baby is born with an abnormal number of chromosomes. The most common aneuploidy conditions are *Down Syndrome (Trisomy 21), **Trisomy 18,
Introduction Aneuploidy refers to a condition in which a baby is born with an abnormal number of chromosomes. The most common aneuploidy conditions are *Down Syndrome (Trisomy 21), **Trisomy 18,