What are trisomies and monosomies?

Also known as: chromosomal abnormalities, numerical abnormalities, human chromosomal disorders.

Trisomies and monosomies are two types of chromosomal abnormalities. Specifically, a trisomy is when a person has three of a particular chromosome, instead of the usual two. A monosomy is when they just have one chromosome instead of the usual two.

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Reviewed by: Mislen S Bauer, MD

This page was last updated on: 1/29/2019 3:21:13 PM