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Phenotype

Definition(s)

The observable physical and/or biochemical characteristics of the expression of a gene; the clinical presentation of an individual with a particular genotype

Definition from: GeneTestsThis link leads to a site outside Genetics Home Reference. from the University of Washington and Children's Health System, Seattle

The observable traits or characteristics of an organism, for example hair color, weight, or the presence or absence of a disease. Phenotypic traits are not necessarily genetic.

Definition from: Talking Glossary of Genetic TermsThis link leads to a site outside Genetics Home Reference. from the National Human Genome Research Institute

Observable characteristics of an organism produced by the organism's genotype interacting with the environment.

Definition from: Office of Rare DiseasesThis link leads to a site outside Genetics Home Reference. at the National Institutes of Health

Related discussion in the Handbook

 
Published: January 23, 2009