Expressivity

Revision as of 09:43, 28 March 2009 by Honee_v (Talk | contribs) (updated page)

(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Definition

noun

The extent to which an expressed gene manifests its effect in an organism.


Supplement

Expressivity refers to the influence of an expressed gene in individuals. A variable expressivity pertains to the consistency of the gene’s influence on the individual. It occurs when a phenotype is expressed but to a different degree among individuals with the same genotype. For example , some individuals suffering from Marfan disease have long fingers and toes. Others would have a full blown disease with the dislocation of the lens and dissecting aneurysm of the aorta.


Synonym: genetic expressivity

Compare: penetrance

Retrieved from "http://www.biology-online.org/bodict/index.php?title=Expressivity&oldid=95983"
First | Previous (Expressive aphasia) | Next (Expressure) | Last
Advertisement
Please contribute to this project, if you have more information about this term feel free to edit this page.