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| defined: |
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.
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| explained: |
Listen to a detailed explanation.
Dr. Robert Nussbaum, of the National Human Genome Research Institute's Laboratory of Genetic Disease Research, defines phenotype. |
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related terms: |
gene, genotype | |
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