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accessory chromosome


Definition: a supernumerary chromosome that is not an exact replica of any of the chromosomes in the normal cellular complement.

Synonym(s): monosome1, odd chromosome, unpaired allosome, unpaired chromosome

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.