Definition of "hypermorphic" []

• Causing an increase in otherwise normal gene function. (adjective)

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• "Here we analyze Pten hypermorphic mice (Pten hy/+), expressing 80% normal levels of Pten."
• "Avp alleles finally contributing to low anxiety - and possibly depression-like behaviors and hypermorphic alleles contributing to hyper-anxiety."
• "In conclusion, introduction of a single hypermorphic allele of a sulfur metabolic enzyme, cystathionine-β-synthase, is sufficient to accelerate growth rate and initiation of cell division ("