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Glossary Term
Glossary Term Expressivity
Definition The relative constancy of the phenotype of individuals of a given genotype. Mutations said to have variable expressivity show a relatively large amount of phenotypic variation among individuals having the same genotype.
See also Penetrance.

Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Tumor Biology (MTB), Gene Ontology (GO), MouseCyc
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MGI 6.13
The Jackson Laboratory