Yang J, Lusk R, Li WH (2003) Organismal complexity, protein complexity, and gene duplicability.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

It has also been shown that there are distinct differences between genes as to their duplicability.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference

2 Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Cambridge, United Kingdom Dosage sensitivity is an important evolutionary force which impacts on gene dispensability and duplicability.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference