Ecogenetics
The interaction of genetics with the environment. The genetic disease PKU (phenylketonuria) provides an illustration of ecogenetics. Persons with PKU lack an enzyme to process an amino acid (phenylalanine) and so require a special environment: a diet low in phenylalanine.

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eco·ge·net·ics (ek″o-jə-netґiks) [eco- + genetics] the study of genetically determined responses of organisms to the environment.

Medical dictionary. 2011.

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