Skip to Content


Pronunciation: du'pli-ka'shun


  1. A doubling.
  2. Inclusion of two copies of the same genetic material in a genome; an important step in diversification of genomes, as in the evolution of the (nonallelic) hemoglobin chains from a common ancestor.

Synonym(s): gene duplication

[L. duplicatio, a doubling, fr. duplico, to double]

See Also: reduplication

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.