Chromosomal aberration - Definition

July 2017


Definition


A chromosomal aberration is when the structure or the number of chromosomes is abnormal. Part of a chromosome can be moved, forgotten, or reversed. This may affect the sex chromosomes as well as non-sex chromosomes (or autosomes). These abnormalities can be detected on a karyotype (photographic representation of the chromosomes of a cell). A chromosomal aberration is often responsible for defects and mental retardation; sometimes it has no negative consequences. You can not cure a chromosomal abnormality.

Related

Original article published by . Translated by Jeff. Latest update on November 5, 2013 at 08:30 AM by Jeff.
This document, titled "Chromosomal aberration - Definition," is available under the Creative Commons license. Any copy, reuse, or modification of the content should be sufficiently credited to CCM Health (health.ccm.net).